4 ff ’ * | &• \ s j ;s \ ^ \ t! i if , u iS, ^ "i x r V ¥ > "is-' ** 1 ¥•>'*’ P * \ LIBRARY OF CONGRESS. Chap._______ Copyright No._ j i Shelf_*_X:t : -— ! UNITED STATES OF AMERICA. T H E CORNICE WORK MANUAL AN EXPOSITION OF CORNICE WORK IN ALL ITS BRANCHES Compiled from Files of THE AMERICAN ARTISAN — By — SIDNEY P. JOHNSTON. »I ■■' ’ v ’ v - — For — AEE IN ANY WAY INTERESTED IN THE PRACTICAL WORKING OF SHEET METAL. 1900 The American Artisan Press, 69 Dearborn Street, Chicago. TWO COPIES received. Library cr'C 6 Rgret% , Office o i tI b« FEB 1 - 1900 • Register of Copyrlgfef* Entered according to Act of Congress in the year 1900, by DANIEL STERN, In the Office of the Librarian of Congress, at Washington, D. C. S&GONB 03PY, h b- r X-. \ ^ DC7 l PREFACE. Modern architecture has witnessed no change mo're important than the general substitution of metal for wood in building construction. The worker in wood is less in evidence than formerly in the erection of residences and stores, while his brother worker in sheet metals is find¬ ing his field constantly widening. As evidence of this I need only cite the steady growth of the sheet metal cornice trade which less than two score years ago was of very insignificant proportions, but is to-day one of the most important of the building trades. This branch of work presents exceptional chances to the clever mechanic, as there is a general demand for workmen in this line in all sections of the country, and the industry is one capable of wide development, there being many places where the practical sheet metal cornice worker can establish a business of considerable dimensions with less capital and labor of introduction than is necessary in most other lines. At the same time the work is of a character demanding a thorough technical acquaintance with its various details, an ability to draw the various complicated patterns that are necessary, and a familiarity with the cost of doing a given work that will enable the cornice worker to make an estimate fully covering all constructional details. It is passing strange that a field in which there is so keen a demand for practical information should have been so systematically neglected by technical writers. The only work treating of the subject that has ever appeared, to the best of my knowledge, was issued nearly a score of years ago before the rise of the present demand for bizarre and PREFACE. grotesque designs which although familiar to the trade to-day are entirely alien to the run of patterns prevalent in the early eighties. That there is a field for a book of the character of this one is amply proven by the many calls that have been made by practical sheet metal workers for a book giving a systematic and progressive course of instruction in the subject. I have striven to the best of my ability to produce a work of practical value on this subject, that would furnish answers to the multifarious questions arising in the daily work of cornice workers. It is my modest hope that this book may cover its chosen field in a creditable manner, and prove an acceptable workshop companion for mechanics whose needs in this line have been up to the present strangely neglected by technical writers. The Compiler. Chicago, III., Jan. 1900. CONTENTS. PAGE. CHAPTER I. The Cutter’s Bench . i . CHAPTER II. Cutters’ Tooes. 3 CHAPTER III. Drawing Tools and Angles. 7 CHAPTER IV. The Entablature. 10 CHAPTER V. The Reading op Drawings. 13 CHAPTER VI. The Measuring of Cornices. 17 CHAPTER VII. Estimating .. 20 CHAPTER VIII. Right Angle Miter Pattern. 23 CHAPTER IX. Bracket Patterns. 28 CHAPTER X. Patterns for Panel Sections. 33 CHAPTER XI. Right-Angle Return Miter Patterns. 35 CHAPTER XII. Patterns of a Pediment and Their Development. 39 contents. pa6 E- 4 CHAPTER XIII. The Patterns for a Segmental Section of a Pediment .... 44 CHAPTER XIV. Details and Patterns for a Finial. 5 l CHAPTER XV. Bracings and Fastenings of Cornices to Buildings. 56 CHAPTER XVI. Staging and Scaffolding for Cornice Work. 64 CHAPTER XVII. Ornament Stamping Machine. 69 CHAPTER XVIII. The Management of Ropes and Hoisting Tackle. 73 CHAPTER XIX. Plan and Details of a Gable and Horizontal Cornice. ... 83 CHAPTER XX. Details of Slating and Slaters’ Tools. 105 CHAPTER XXI. Details for Horizontal and Raking Miter Patterns. 113 CHAPTER XXII. Development of Details and Patterns of the Turrets. ... 135 CORNICE WORK MANUAL 1 I. THE CUTTERS BEHCH- The present development of the cornice trade and particular^ its tre¬ mendous increase, in volume of business and work done, the variety of de¬ signs which the present rage for bizarre and grotesque designs has brought out, most of them being out of the usual run as found in some of the so- called pattern books now on the market; the entire absence of a system¬ atic and progressive course of instruction on this subject, embracing at once all the different parts and branches of the cornice business, each one in de- Fig.l ail, such as estimating, laying out or, as commonly designated in the shop, as cutting, complete table of weights, cost of material and time required in getting out work, descriptions of the various kinds of machinery used in cornice shops, their manipulation to the best advantage; the description and manner of working circular work, the best method and different ways of getting out work and its putting up on buildings, staging, scaffolding, and the economical handling of men on outside work—in fact on most of these subjects there being none, or at least very little reliable information, the following series of articles having been prepared to meet this want. One of the first requisite appliances or tools needed in every comice shop is a drawing table or cutter’s bench. The size and general arrange¬ ment of the same I leave to the judgment and taste of the person using it. As the location and amount of space in different shops to be devoted to the location of the cutter’s bench varies and sometimes other considera¬ tions have to be taken into account, this would render it out of the ques¬ tion to make the size of the table by a fixed rule to meet all cases, but a good point to follow is to have it as large as possible. The most con¬ venient size for work is 50 inches wide by 12 to 15 feet long. The wood to make same is of white pine, 1 inch stuff being the thickness of material usually employed, but a table of 1£ or 1J inch would be far preferable by reason of greater strength and greater amount of material for dressing the surface when it becomes rough from the use of prick punch. Fig. 1 shows the general manner of construction of a board as de. 2 CORNICE WORK MANUAL scribed in the foregoing. The boards of which the table is made ought not to exceed 8 inches in width, glued together and cleated, as Fig. 1 shows on CORNICE WORK MANUAL 3 the bottom, or the same may be mortised and shaped as in Fig. 5 . In some cases the boards are grooved underneath, lengthwise, as Fig. 6 shows. It is understood, of course, that the size and ends are to be parallel to each op¬ posite edge. A stiff band of iron is sometimes fastened to the outer edge to keep the same true and free from wear. The standard as Fig. 2 gives is the most convenient shape in use. This is also made of pine wood. The Figures 3 and 4 gives the details of its construction. Make the head piece 2 inches thick by 5 inches deep, the legs out of 1^ inch thick and 5 inch wide stuff; when complete about 16 inches apart at the bottom. The cleats, as shown on the side of legs of standards, are to be fastened with screws, while the shorter ones are more tised, as the drawing shows. The height of the standards, of which there are two, may be regulated to suit the convenience of the person using the table, the usual height being from 36 to 42 inches. II. GUTTER’S TOOLiS. The most important mechanic in cornice shops generally is the cutter, on whom not only the work of drawing, cutting and getting out all patterns used for correct fitting and putting work together in the shop depends, but also, particularly in smaller shops, the duties of foreman both inside the shop, where the work is erected and made ready, and on the outside the superintending, the putting up of work and general management of the work¬ ingmen. The figuring and estimating in most shops is also done by him. In larger establishments his duties, of course, more strictly conform to what the name cutter in a cornice shop implies, namely, the getting out and cutting of patterns from scale drawings, sketches and details, etc., as furn¬ ished by architects, to full-size patterns or templates as the work on hand 4 CORNICE WORK MANUAL demands. If the cutter, besides the ability to do the work implied in the foregoing, has also a good knowledge of the principles of designing which enter into the general construction of cornice work, he will find it of great assistance and value as an aid in the getting up of substitute drawings or in altering architects’ drawings, as it often happens that changes are demanded sometimes necessitating a partial or even a wholly new design of the work in hand. Bear this in mind, that in no branch is it so often the case that it is more expedient to sacrifice utility to beauty or vice versa , than in the cutter’s branch. In the following I will give a list of tools which are generally found most useful for a cutter’s outfit. This does not imply that each and every one of the different tools is indispensable. The amount and quality of tools one has or uses is largely a matter of individual choice, some cutters in the larger establishments having even a larger number of tools than here enu¬ merated. I would add that they are all of the best quality, finish and make. The best course to follow is: When procuring tools, no matter how few, get them of a good grade, as a good tool is the cheapest in the long run and is always a more satisfactory implement to work with than an inferior and poorly made one. It is understood that this list is merely to indicate what is most desirable to have at the beginning; when one becomes more pro¬ ficient and expert, fewer tools than here given will nerhaps amply suffice. CORNICE WORK MANUAL 5 CORNICE CUTTERS’ TOOLS. Tee Squares, 2, 4 and 6 feet long one each, one steel or wooden straight edge, one 3 foot Rule. One 2 foot Rule. Scale Rules, i, 3-16, A, J, i, J and 1 in. One Steel Square, nickel pfatcd. Protractor Scale, horn or brass. One Perspective Lineal, one bevel angle. One Set Beam Compasses. One Set Trammel Points with pencil attachment. Rubber Erasers. j Doz. Med. Hard Lead Pencils. J “ Red Marking Crayons. } “ Blue One Doz. Thumb Tacks. One Set Dividers. Beam Compasses with needle points, inking pen and lengthening bar. Inking Pens. One Set of Angles. Several Marking Curves. Roll of Manilla Drawing Paper. TOOLS FOR MARKING ON IRON. Two Angles, one 30 and 60 degrees, one of 45 degrees. Several Good Marking Awls. Prick Punches. Weights for weighing down patterns on table. Small Mallet or Hammer for tapping prick punch. One Pair Straight-Handled Shears, large. small, commonly called platers’ shears. “ “ Circular Shears. “ “ Hawk’s Bill Shears. “ “ Shears, called roofers’ shears. One Standard Wire Gauge. The above list embraces as complete an assortment of tools as the cutter will probably ever be called on to use in any case in practice. The following gives a more detailed description of the most used and important tools. Tee squares should be perfectly true and straight every way; the head on the smaller ones it would be well to have fixed stationary, but for the larger sizes a partial swivel head is desirable. The choice of material is merely a question of how much a person cares to expend for one, the kinds made of beech or maple wood being the cheaper grades; higher priced squares are made of different kinds of wood glued together—mahogany, hard rubber, steel, etc. Fig. 7 gives a tee square with a partial swiveled head. A steel straight edge is the preferable one for use in marking lines on 6 CORNICE WORK MANUAL iron, but its use for drawing lines on paper is rather heavy, so that a wooden straight edge would be the most convenient kind for this purpose. Absolute correctness in every way is the quality demanded in this tool. Almost every mechanic has a 2 and also a 3-foot rule. These need no particular description. Scale rules are divided into the various subdivisions of feet most com¬ monly used by architects on drawings. The scales are marked on the vari¬ ous surfaces of the rule as Fig. 8 shows. Fig. 8 gives a very convenient tool of this kind for ready use. It is divided into J, ^ and 1 inch to the foot. Other styles may be selected, of which there are a great variety, to suit the fancy or taste of the purchaser. The common 2 foot square is also a tool found in any mechanic’s kit, the nickel-plated square being the neatest and also the most durable kind, CORNICE WORK MANUAL 1 A very handy tool for the cutter’s use is a square made of wood, about the size of an ordinary steel square; its lightness and ease of handling make it a great favorite with many cutters. Protractor scales, sometimes called degree scales, are made of horn, brass, German silver, etc. This tool is used to find the various degrees of circles, angles for drawing polygons, etc. Fig. 9 shows a protractor scale made of metal. The circle divided into 360 degrees, these divided into minutes, and these again divided into seconds are shown on some of these scales, that is on some of the more expensive kinds. The protractor shown *n Fig. 9 being a semicircle shows 180 degrees. The finer or more minute subdivisions rarely being used by a cutter, a kind as shown by Fig. 9 will answer all practical purposes. A pair of dividers made of wood, with the end of one leg arranged to hold a pencil or crayon point, wfil be found to be a very convenient tool, particularly for large work. The perspective lineal is a very useful tool, especially when new de¬ signs are prepared, as sometimes perspective drawings are made to show a view of the work when finished. The ordinary bevel can be bought in any hardware store. The Figures 10 and 11 give a pair of beam compasses. On large work, curves, circles, etc., for precise and accurate work they are the best. Inking and pencil point attachments are provided with this tool, it is very light and easily handled, but is almost too delicate to be used on rough work, such as marking on iron, etc. The heavier and stronger tool usually used for the last purpose named are the trammels; the kind with a lead pencil attachment is a very handy tool. III. DHAUJUHO TOOLiS AND AMGLiHS. Among the most delicate and at the same time most used drawing tools are the set of dividers and compasses, as shown by Figs. 20, 21, 22 and 23. These tools should be of the best quality one is able to procure. A good tool of this kind always gives the best satisfaction and will, with care, last a lifetime. Drawing curves, or sweeps, such as come most handy for drawing ovals, parabolic and irregular curves, are also very desirable. Angles as shown by Figs. 12, 13, 14 and 15, in Article II, are the most commonly used. These are made of beech, pear, maple wood, hard rub¬ ber, metal and amber, the latter material being especially clean, strong 8 CORNICE WORK MANUAL and transparent. Fig. 15, Article II, gives an equilateral triangle, a handy aad much-used angle. The respective degrees of the different sides of all the angles are given in the drawings. Some of the most useful angles in a cornice shop drawing room are the angles shown in Fig. 17, Article II. They form respectively the angles of the most used geometrical figures in cornice work, such as Pentagon, or 5 sided polygon. Hexagon, “ 6 Octagon, “ 8 Decagon, “ 10 “ The various angles and degrees that the sides of these polygons have to each other are fully shown in drawing Fig. 17, Article II. Fig. 18, Arti¬ cle II, shows a quarter of an octagon inscribed in a circle and gives the method to obtain the degrees of the angles as shown by Fig. 17. A more detailed description will be given further on. Fig. 19, Article II, gives a pretty shape for a weight to hold paper patterns down on the iron while pricking FIG. 20 FIG. 21 FIG. 22 points through the paper pattern on to the iron. A tin or iron body in the shape of a frustum of a cone is made, as drawing shows, double seam on bottom. Fill the body full of sand: then put on cover, to which a. ring has been fastened, as Fig. 19 shows. The top may either be burred and sol¬ dered onto the body, or it may be burred and seamed onto the tody as suits the maker. Several of these weights are used. Good lead pencils, of a medium grade of hardness, and rubber erasers are indispensable as a matter of course. Red, blue and black marking crayons are used by many cutters; when on complicated work, a great many different sets of lines are used. To fa¬ cilitate the ready finding of some particular set of lines, they sometimes touch Up the desired lines with the crayons, to color as suits their fancy. CORNICE WORK MANUAL 9 Thumb tacks which have their pins screwed into the head, are the best; smooth, rounding heads are better than the sharp-cornered, project¬ ing heads. The different styles and kinds of shears as given in the list of tools are generally used for this work. Prices and full descriptions can be found in almost all catalogues of tinners’ tool supply houses. A pair of 6 -inch and also a pair of 12-inch wing dividers are useful. A standard wire gauge, of any style or pattern, is indispensable. The foregoing is, in brief, a condensed description of the tools that are most used for the purposes indicated. Those who want a more elaborate treatise on the various kinds of drawing tools I would refer to the numer¬ ous books, pamphlets and essays published on this subject; as I regard it out of the province of these papers to give any more space than what is ab¬ solutely necessary for the practical understanding of the various tools and their use as far as is required in the cornice shop. The following table gives some of the properties of the first twelve regular polygons on a plane surface: Take.the Fig. 18, Article II; the circumferential straight lines which make two sides or one-quarter of a regular octagon or eight-sided polygon. Now from point C, or center, the line that cuts through the point where the two circumferential straight lines meet, thus divide the quarter into eights or into two isosceles triangles. Assuming the point C as center, or apex, the lines diverge from each other at an angle of 45° in an octagonal figure; in a hexagonal angle, 60°, etc., as the table fully gives. The foregoing is the central figure. The polygon angle is formed by the junc¬ tion of any two circumferential lines of any regular polygon. The respective degrees are given in column three. Taking either end of the FIG. 23 circumferential lines of any regular polygon where it forms 8 , junction with either one of the lines leading from its extreme ends to the 10 CORNICE WORK MANUAL center of the regular polygon of which the circumferential line is a denomi¬ native part, the following angles will occur as set forth in the table, column four, and we will call them the degrees of the base angles. The Figures 17 and 18, Article II, fully show how these tables are applied. The areas of all the regular polygons are figured by triangulation. Names of Polygon. x\ UMBEIl OF Sides. Central Angle. Polygon Angle. Base Angles. Triangle. 3 120° 60° 30° Square. 4 90° 90° 45° Pentagon . 5 72° 108° 54° Hexagon. 6 ' 60° 120° 00° Heptagon. 7 51° 43' 128° 17' 04 2-7° Octagon. 8 45° 135° 67 1-2° Nonagon . 9 40° 140° 70° Decagon.. 10 36° 144° 72° Undecagon. 11 32° 13' 147° 47' 73 7-1° Dodecagon. 12 30° 150° 75°1 Probably one of the most bandy angles to the cutter is the Tret angle, Fig. 15, Article II. With it any angle that is a multiple of 15° can be plotted or measured in connection with the tee square. It has, as the name implies, four angles, 90°, 60°, 75°, and 135°. By reversing, the an¬ gles 30° x 60°, 45° x 45° and 15° x 75° may be drawn. With it an easy division of the circle into 24 equal parts can be made. This angle can be used conveniently in the three different systems of insometrical drawing in which the. axial horizontals are represented respectively at 0° and 00° and 80° and 30° and at 15° and 45°. This result has hitherto been accomplished only by the use of special axonometrical triangles. 1Y. THE ENTABLATURE. In this paper I give, Fig. 24, the entablature, or, as generally termed among architectural workers and the building trades, the cornice. Strictly speaking the upper division of the entablature is the cornice proper, em¬ bracing all the different parts from the crown molding to the dentil mold¬ ing. The second division, or frieze, embraces from the dentil molding to the foot molding, or third division, the architrave. In the trade, at the present time, the entire structure described above is termed the cornice. CORNICE WORK MANUAL 11 The drawing, Fig. 24, as given, is somewhat of a variation from a pure classical design to conform to the styles prevailing at the present day, A 12 CORNICE WORK MANUAL strictly correct proportioned design as laid down by the well-known laws and rules of the old schools I deem as rather too severe and plain to satisfy the taste of the present time. A description of the different parts that con¬ stitute a complete cornice is given as follows: The crown molding, letter C, is the top front projecting part of the cornice; the facia, F, is also embraced in the crown molding. Directly underneath the facia, which is a flat band or member of the cornice, a hori¬ zontal member, the ceiling, or bottom of the cornice, occurs. This is called the planceer. In well-made cornices the face of the facia band is projected somewhat lower than the horizontal surface of the planceer, thus forming a drip, letters P and d, to prevent the water dropping on other parts of the cornice. Letters B M, M C, M M, D B and D M are termed the bed moldings, embracing the different moldings, as the bed, modillion and dentil moldings, and also the modillion and dentil courses, these latter two being the flat part, M C and D B, and these form the flat surfaces to which the modillion brackets, or ornaments, and also the dentil blocks, are fas¬ tened. The head molds or blocks of the modillion brackets finish up against the bed mold proper, B M, and also up against the planceer under the crown molding. The modillion bracket has this distinguishing feature from the regular bracket that it has its greatest length horizontally, while the regular brack¬ et has it from top to bottom. In the Fig. 24 no modillion brackets are shown, to avoid confusion and overloading this design, but I will give this matter ample consideration farther on. Dentil blocks are generally made as the drawings demand which the cornice maker works from. In Fig. 24 the dentil mold is of a larger size than is strictly proportionate in the severe classical form, but is here simply given as a modification. The frieze or panel section of the cornice is the one on which generally the most ornamentation is put, every architect having his own favorite de¬ signs, hence the great variety met with in cornice work. Fig. 24 gives a paneled frieze back. The panel is sunk from the stile so that it lies flat to the wall line at P A. The lower part or architrave, commonly called foot mold, string mold, etc., needs no very detailed description. It will be seen that in the lower end of same a drip is formed by the way the design shows, and also a flange which projects into the brickwork. The projection of a bracket, letters B B, is shown by dotted lines. Also by letters T T, H B; a truss, or end block, and also a head block and stop block are shown, the head block and truss forming the end finish of a cornice. In future papers these details will be more fully dealt with. The base of truss extends,as will be observed,some distance below the drip of the foot molding, showing six different kinds of curves. It would be a very CORNICE WORK MANUAL 13 profitable exercise for the student to take this drawing and draw to differ¬ ent scales, say ^ in., ^ in., or 1 inch to the foot. After it has been gone over two or ihree times in this way a good understanding of the names and positions of all the different parts of a cornice will have been obtained. The student may also change the design to suit his fancy. This gives ex¬ cellent practice, and as a consequent result, greater proficiency. A good rule to follow is to make all drawings precisely, and whatever scale is used make all the work strictly conform to the same. The term lintel cor¬ nice is generally apphed to a cornice over the first story, such as store front openings, etc. Hip, gable and ridge moldings are used on the parts of buildings as their names imply. Pediments are of various forms, an¬ gular, broken, segmental, etc., and are used to cap windows and doors, and also in designs of cornices. Of miters, which means a joining of two parts at any angle, there are a number, such as square, butt, gable, raking, inside and outside miters; also angle miters of various degrees and directions. Numerous examples will be introduced in the problems as we proceed. As the cutting and laying out of patterns for cornice work is based on geometry, and particularly on the branch designated descriptive geometry, I will, from time to time, as occasion demands, give the principles of this branch, as the problem under consideration requires. It would be well for the beginner to procure a work on plane geometry, as the terms, names, and in fact, the entire vocabulary used to designate the elementary figures and definitions as used in the first steps, tending to a clear understanding of the principles of pattern cutting, are contained therein. The price of such a book is merely nominal. V. TfiB HEADING OF DHflWlflGS. In this article I give the drawings of a complete cornice of a 24' front, as in Fig. 25. Fig. 27 gives the profile or end elevation of same. Fig. 28 gives a section through A. A. of Fig. 25. Fig. 29 gives a drawing of the finial on top of the pediment. We will first discuss the matter of reading these drawings, so that when the figuring is to be done, every detail is fully understood. The front elevation is drawn to the scale of 3-16" to the foot, meaning that every item and detail is drawn to that scale in every particular, in this fig- 14 CORNICE WORK MANUAL nre, No. 25. This view represents how the cornice looks from the front only, and gives the position of every member of the entire structure, from that point of view. From this view we see that there are in the cornice section proper four outside and two inside miters, embracing the deck mold, deck, crown molding, fascia, and also the planceer. The dentil course and also the panel of the frieze section are straight from end to end, that is, there are no miters or outward projections in the main body of this part. In the foot molding there are four projecting members, making eight outside, and six inside miters for this section. Four corbel blocks are shown under the four projecting parts of the foot mold. Fourteen brackets are shown; six of these are projected outward three inches more than the others, four on each side or end. By referring to Fig. 27, their Relative positions to each other are shown at A. A'. Cornice work manual i5 The panel section has sunk frieze pieces or panels. The center pieces of same are of crimped iron, or as some term them, washboard panels. The pediment or crowning structure of the cornice gives every de¬ tail plainly from the base of same to the paneled face and the curved molding, also the position of the finial and the ornaments on top. The Fig. 27 gives the projection of Fig. 25, showing the relative posi¬ tions of all the parts of the cornice, looking afc same from one end, or the end elevation, also called profile of the cornice; B and A. A', are brackets; C are dental blocks; from D to E, is the cornice proper, embracing crown molding, fascia and bed molding; F is dentil course. Below the above, H is the sunk frieze panel; K. and K.' show the positions of both the straight and projecting parts of the foot mold; X. X' the dotted line, gives the pro¬ file of the ends of the cornice. 16 CORNICE WORK MANUAL Fig. 28 gives a sectional view of pediment cut at A. A'. in Fig. 25. The dotted lines give end elevations of same. Fig. 29 gives a detail drawing of finial, drawn to the scale of to the foot. Fig. 28 It may be well here to remark that the six brackets in the center of the cornice are in profile, as the line A' gives the lower section of same conforming to the line A, as is fully shown. Fig. 28 gives the plan of cornice: A gives the extreme outer edge of the crown molding, B is the edge of the extreme outer edge of foot molding, D is outside line of build¬ ing wall and C is the inner one, that is the line farthest away from the cornice; letters C show the correct positions of all the brackets, S S' shows the ends of cornice extending back to the inside face of wall, X X ; shows position of base of pediment. The front and plan are 8-16" to the foot scale, Figs. 25 and 26. The side elevation is J" to the foot, Fig. 27. The foregoing gives all that is necessary for a clear understanding of the plans, or as commonly termed, the reading of the plans and drawings. CORNICE WORK MANUAL 17 r» * VI. TfiE JVLEASllpIpG Op COppICES. After one is able to read a set of drawings so that every part and detail is fully understood in regard to its proper position and its relation to all the other parts of the entire structure, various sizes and measures of all the parts can then be ascertained for the purpose of the preliminary estimating in any of the following ways. I will first give a snap method as used by some, for rough calculations; (see Figs. 25 and 27, Article V, giving the front and profile of the cornice under consideration): First get the entire length of front including the end turns and all of the miters of the cornice. Commence at the extreme end of the crowr. molding as at 1 to 2 of Fig. 26, Article V; this distance measures 3 ' 6", from 2 to 3 =7' 9", from 3 to 4 including the 4 miters 11", from 4 to 5 = 7 7 9", from 5 to 6 — O' 6". Total of the entire extreme edge of the crown molding is 33' 6". The length of the foot molding is 30', including all the miters and turns occurring in the same. The length of the panel section, dentil course, etc., is 26' long, including the two turns for the ends, as line L, 7 and 8 of Fig. 26, Article V, shows. The Fig. 27, Article V, gives for stretch out of crown molding of the center projection from 1 to 5 6' 3^", and for the end sections of same each 5' 9J". For the center course from 5 to 6 stretch-out is 2' 3", for stretch-out of foot molding 20" on an average. It will require 6 square ft. of iron for each bracket; as there are 14 brackets, it will take 84 square ft. of iron for them. We will take the average for the crown molding as 6' for stretch-out, which makes 33' 6 ' X 6' = 201 square ft, of iron for same. The stretch-out for the panel, dentil or center course being 2' 3" x 26' = 58 square ft. and 6 square ft. for this portion. The foot molding has a stretch-out of 20" x 30' = 50 square ft. for same. The strip from 7 to 8 and C to D is to be covered also; the same is 24' by 1'. The entire total for cornice so far is as follows: For brackets.84 sq. ft. For crown molding.201 sq. ft. For panel course.58^ sq. ft. For foot molding.50 sq. ft. For strip over walls. 24 sq. ft. t Total 417J sq. ft. 18 cornice Wore Manual The surface of the pediment is 2' in width and 9 ; in length; 5' is the height; this gives 2' x 9 = 18 x 5 = 90 sq. ft.; the top of the pediment is 11' x 2' = 22 sq. ft. 22 + 90 = 112 sq. ft. of iron for entire pediment. This makes the entire total of the surface by the method used 112 -f 417 = 529 sq. ft. of iron for the cornice. This in brief is about as near as the aver¬ age cornice maker comes to the actual amount of material really used. Although I may say that in the amount as given above if say about 10 sq. ft. are added to the same for waste in the cutting, or the entire total is taken at 539 sq. ft. a rather high margin for safety is taken; that is, in my estima¬ tion, the figures as given call for somewhat more material than will actually be used for the entire structure. And as a consequence no fear need be entertained that the estimate is too low in this respect. In establishments where a great amount of this work is done and has been done, if any data is kept for this purpose of work that has been gotten out, it becomes an easy matter to get very nearly correct estimates of almost any kind of designs that come near to work that has already been done in the shop. This in particular applies to larger shops. In smaller shops where perhaps each and every cornice differs radically in its most important parts from any other cornice previously done in the shop the greatest care and accuracy are required to get the correct amount of material used on the work one is figuring on in order to be able to compete with other shops and so as not to be too high nor too low in one’s estimate. Of course, the more a person does of this work the more profi¬ cient he becomes. A good plan for the student would be to get a set of different designs, and study this branch and practice until he becomes thoroughly familiar with every detail of it. The best way for absolute correctness is of course to take a design of any cornice; as for instance the design submitted in Fig. 25, Article Y First get the general dimension as to its length, height, projection and other details in connection therewith. The height of cornice or its depth is 5', its projection out from the face of the wall is 31 in. and the turns at ends extend back from face of wall 12, in. as plan Fig. 26, Article V shows. The pediment is 4 ft. 8in. high from its base to top of its deck, its extrem e length horizontally at base is 8' 9", and at the extreme points of its curved deck it is 9 ft. 9 in; its deck is 2 ft. wide. Now go over carefully each detail note them down, as the number of brackets, dentil blocks, details of the sunj^ panels, how many projections or miters there are in the foot-molding and also in the crown molding; note down the number and style of the orna¬ ments on brackets. Follow the same general course in regard to the details of the pediment; note each peculiarity of the different members and measure them correctly as to their girth and length, as the drawings fully CORNICE WORK MANUAL id show. In fact, get the correct measure of every detail of the entire work, and if done so and the total is footed correctly, the result as a consequence is that no possible mistake can be made in the estimate of material used. The above is the safe way, although somewhat more tedious than by a snap method. - \ The following tables are useful in figuring, estimating, etc. In the table of weights given for copper, allowance must be made for the varia¬ tion in the ( weights of different brands of copper. The table as given is correct enough to approximate the weight of any certain’gauge that is likely to be used in calculation. A good plan is to get a certain brand, ascertain the correct weight, and use the figure as found, if differing from tyiose as given in the table. COPPER. Sizes of sheets generally used: 14" x 48" 30" x 60" 48" X 72" B. W. G. Per Sq Ft. B. W. G. Per Sq. Ft. B. W. G. s Per Sq. Ft. No. 10 100 oz. No. 16 46 oz. No. 22 23 oz. “ 11 90 “ “ 17 42 ” “ 23 20 “ “12 80 ” “ 18 36 “ “ 24 18 “ “ 13 70 ” “ 19 32 “ “ 25 16 “ “ 14 60 “ “ 20 29 “ “ 26 15 “ “15 54 “ “ 21 26 “ " 27 14 “ The following gives a list of the sizes of bar iron mostly used for braces, stays, lookouts, etc., on cornices: BAR IRON. Width. Tm _ Weight Per Lineal Foot. V i" Ks" 3.158 lb. w 3 684 “ Vs” .421 “ ih" Vs .5 26 “ IV' 3-16" .789 “ 1 x 4 *4" 1 052 ” 1 3 s" 1 V' 3 16" .868 “ 3-16" .947 “ iy 2 " 1 4" 1.2 63 “ l 3 A" J 4" 1.474 “ 1U" 2" 5-16" 1.842 “ 1 4" 1.684 “ 2" %" 2 538 “ 2 V' 5-16" 3 e" 2.631 “ 3" 3.789 “ 20 CORNICE WORK MANUAL SHEET ZINC. Size of sheets 36"x84". Number. Thickness. Weight Per Square Foot. 5 0.0039 0.4117 lb. 6 0.0132 04792 “ 7 0.0150 0.5468 “ 8 0.0169 0 6144 “ 9 00187 0.6820 “ 10 0.0224 0.8172 “ 11 0.0261 0.9534 “ 12 0.0298 1.0875 “ 13 0.0336 1.2227 “ 14 0.0373 1.3579 “ 15 0.0410 1.49 30 “ 16 0.0447 1.6282 ” 17 0.0521 1.8986 “ 18 0.0596 2.1689 “ 19 0.0670 2.4393 “ 20 0 0744 2.7096 “ ♦ VII. HSTI^VIflTIflG. The correct estimating in the first stages of the work, such as the read¬ ing of plans, measuring of the surfaces of work and the estimating of the time it may take to do the job on hand, and other incidental items met with in the getting out of the same, can only be acquired by cornice men after long, careful and close study and observation. The following hints will, in a measure, supply what some may lack in these important qualifica¬ tions : When the amount of iron is determined that it will take to do a cer¬ tain job of cornice work, the next question that presents itself is how much time and labor will it take to do the work. There are almost as many ways employed to arrive at the result sought for as there are ways of doing the work itself. Some guess at the time, comparing the work under considera¬ tion to that of similar character and design done before. Knowing of course the amount of time that it has taken to do the preceding work, a nearly correct estimate can be made as to the time it may be required to do the work now on hand. The method as described is used in a good many shops with sometimes widely differing results as to the actual time re¬ quired, sometimes being too low an estimate and quite as often too high to be in any way near correct. s CORNICE WORK MANUAL 21 The way that is most prevalent for cornice men to bid on work is by lump figures, that is, the plans and specifications of a job are submitted by the architect to the cornice maker, and he gives a figure for whatever amount he is willing to do the work complete or in a lump. It also some¬ times occurs that a bid is asked for a cornice by the foot, or how much per running foot for the completed cornice put upon the building. If the result has been obtained in a manner as shown by the snap rule, it is only neces¬ sary to divide the feet or length of the cornice into the sum as arrived at, the result being the cost per single foot. This method, although somewhat crude, answers well enough in some cases. A different way and more reliable one is to estimate the entire items of a cornice separately, such as: 1st, work in the shop on cornice, 2d, transpor¬ tation from shop to building where the work is to be put up, and 3d, the cost of putting up the work on the building itself. In some large establish¬ ments the following plan is used to determine the cost of almost any member of a complete cornice. I will take say a bracket, or any member of a cor¬ nice for that matter. The first step is to make a drawing of the desired shape and cut out a pattern; this part is done by the cutter. When this is done the time is carefully noted down which it required to do his part of the work; also the general character of the design, size and shape; next, one man does the forming, another the joining or soldering together of the various parts of the work. When the member is completed, the weight, size, general description of the work, and the precise time it has taken each man to do his share of the work is put down and on the figures thus obtained future calculations are based. The same method is used to obtain the price of all the different parts of cornices, thus securing at once for all time a safe and reliable guide for future estimates and calculations. While the foregoing would hardly be applicable to small shops, still it is to be recommended to the careful and prudent workingman to keep a close record of all the work he does for future reference. For those that have not a great deal of experience in this most important branch of the cornice business, the great number of catalogues sent out by wholesale houses who sell to the trade, the illustrated price lists, etc., will prove of great value to the beginner, insomuch as he will find therein the prices charged to the trade for almost every conceivable shape or pattern of cornice work made. These lists are subject to the usual trade discount. By taking the weight of the material it takes to do a certain piece of work, thus obtaining its cost for that item, then deducting the cost of the material used from the net list price as sold to the trade he will easily obtain the desired cost of ‘2‘2 CORNICE WORK MANUAL the item called labor in the shop. Of course, the wholesale manufacturer also has a profit to make on the goods he sells, but which in some cases is of such a small margin that only the great amount of the output from his large establishment makes it pay. Then the great variety of the very best machinery in the business alone tends to add greatly to his profits, which in many cases enable him to sell to the trade nearly as cheaply as the small shop can produce the goods themselves. In any case it is always safe to use the prevailing trade price as cost price, then add a certain per cent for profit above the figures thus obtained. The items of cartage and of putting up the work are of great impor¬ tance, there being no fixed rule by which these matters may be decided at all times, every job having its own peculiarities and special condi¬ tions. This part in the estimating must, in a measure, be based on previous experience and familiarity with this kind of work. Some men will put up a common cornice in from 3 to 4 hours while it may in other cases take them an entire day to do the job on another build¬ ing; it all depending in what shape the work is to be put up, if in sections, or put up in one piece, and on other conditions probably unforeseen and unavoidable; it is always well to know just what kind of men are used to do the work in hand. This branch of the work is as well worthy the careful consideration as to its most minute details as almost any part of coxnicc work. The items of solder, rivets, in the shop and also on the outside, the scaffolding, hoisting tackle, etc., must all be figured each in its proper place. To conclude, the person doing the estimating for work of this kind should make himself thoroughly familiar with every detail of the work, care¬ fully study the tables of weights of materials and their prices, keep time on all work for future reference and obtain all data appertaining to this branch that it is possible for him to collect. Whenever a job is done let him make a detailed, itemized memoranda of all the different phases of the work as to time it required, stock and material, how many men employed on each item, etc. Such a record will prove of great value and assistance in the ready estimating of work. CORNICE WORK MANUAL 23 VIII. HlGHT-flfiG^H JKITEn PATTER. In the preceding articles are given the necessary first steps, such as the reading of plans, correct ways of measuring surfaces, preliminary figuring and estimating occurring in cornice work. These details being disposed of, the next step in the regular course of the construction of a cor¬ nice is cutting the patterns and laying out the entire work as demanded by the drawings of any particular job under consideration. This part of the work is, as a matter of course, done by the cutter, who in most shops is also foreman, who has the general management and control of all the details of the practical work. The particular and special qualifications demanded in a first-class cutter have been fully covered in Article II, and need no further description at this time. When a person first takes up the study of the science of pattern cut¬ ting, it is of the greatest importance that the correct methods and at the same time the right way is taken to acquire the knowlelge sought for. The proper course to take is to know the why and wherefore for every step and move taken. Study carefully and master every detail that is demanded by the drawings submitted, so that when you proceed to lay out the problems involved in any particular case you fully understand what is required. Guess work will not do in this branch of the work. Accuracy, careful study, good judgment and the exercise of a certain amount of good com¬ mon sense is demanded for success. Do not attempt to use short cuts quick methods and snap-rules before you even understand the first rudiments of the correct and proper mode of solving problems. It is assumed that the person intending to work out the problems which will be given from time to time in this series of articles, has provid¬ ed himself with the necessary tools and also with a work on plane geom¬ etry, as suggested in Article V. The manner of treatment I intend to follow is precisely the same as is used in common every-day shop prac¬ tice; that is, just as if I were actually getting out the job under considera¬ tion. As the drawings of the cornice given in Article V will answer the purpose as well as any other design, I will proceed to tre-it the same in de¬ tail. It will be seen that the front elevation and plan are drawn to the scale of j|" to *he foot, Figs. 25 and 26. The profile or side elevation, Fig. 27, is J" to the foot. The first operation is to draw all the different details 24 CORNICE WORK MANUAL to full size from the scale. As these are the final data from which all the rest of the work is to be done, it follows that they must be correct. The first member or part of this cornice that I will discuss at length will be the foot molding, letter K, of Fig. 27, Article Y (as it would be impossible to give drawings full size here, they are drawn to the scale of 2" to the foot. The Fig. 80 gives the profile of the foot molding throughout its entire length, as from A to B and so on, including C D E to F. Draw this much first, then draw the wall line G to G' to its proper relative position as is shown and demanded by the drawings, Figs. 26 and 27 of Article V. Next the plan of the 3" projection may be drawn the same as given in Fig. 30 and also the complete plan of this part of the foot-molding. The Fig. 30 gives the plan of the right hand end of the foot-molding of Figs. 25 and 26, of Article V. Draw all these parts as described to full size. Also note down the full size measurements as are fully given in this part of the plan of the foot-molding; as these are the actual sizes of the various parts of the molding when done, they give the data from which the lengths of the different parts are taken which constitute the foot-molding. This leads to observe the particular construction of this molding. Note the ex¬ treme ends of the foot-molding; they turn back from the front line of the front wall 20" and correspondingly on the extreme outer edge of the foot-mold¬ ing 25". This shows that the projection of the foot-molding is 5" hori- ontaliy outward from the wall line. Then the foot molding, according to the plan Fig. 26 of Article Y, has eight outside and six inside miters; the various miters corresponding to the different projections of the wall, as the Figs. 25 and 26 of Article V give. This molding being a horizontal molding, as a consequence the various miters are horizontal miters. This much leads to the two lines showing the junction of the outside mi- CORNICE WORK MANUAL 25 ter as line X X' and line S S' of the inside miter of Fig. 30. In pattern cutting the cutter seldom has more than two views of a problem to deal with at the same time, the principal points of view being a horizontal and a vertical one in most of the ordinary cases in the course of the work. In this case we have a vertical view of the profile and a horizontal or plan view of the miter lines, all in the flat as the Figure 30 gives. From this it follows that the intersecting lines from the curve of the profile, starting from the numbers 1 to 8 and cutting the miter lines X X' and S S, are supposed to drop vertically, just as if the profile were standing up in a vertical position from the plan. Or, in other words, if a piece of molding as the profile demands, was cut at line X' X" and also cut through at the miter line X X' and it had all the points marked on the face of the molding at the line X' X", then from these points horizontal lines drawn to the cut established by the line X X' they would be precisely the some as are drawn in Fig. 30, looking down at them from the top of the molding. From this then it follows that when the miter line is to be determined for a horizontal molding, the lines must be drawn either from the top or bot¬ tom of the profile of that particular molding, if drawn in the flat, and never from the sides. In this case they are drawn from the bottom, as Fig. 30 shows. For the curved part of the foot molding divide the same into any con¬ venient number of equal parts; in this instance I have divided the same into seven, as the points 1 to 8 show. From these points drop lines to the miter line X X' and as the 3" projection has the same profile as the rest of the molding they may be continued as is fully shown in the drawing. Draw the line X' X", as this line gives the full extent of the miter in the plan, as from the points X' and X to X'. This completes the drawings that are necessary by this method to get the data for the required distances, so that the actual patterns of the required members of the foot molding can be taken from the same. The next step is to get the stretch-out or envelope of the molding. Take the distance of the entire profile of Fig. 30, from A, B, C, D, E, to F. Make the distance shown between the lines A A' and F F' of Fig. 31. Between these lines the different spaces are drawn, each one corresponding to the relative positions shown in the profile of Fig. 30. These lines are all lettered and numbered in the stretch out, Fig. 30. Draw the line A to F perpendicularly to the line A to A' as shown in Fig. 81. The lengths of the various lines between line X to X and from X to X of the plan of Fig. 30, when drawn or transferred on the stretch-out, give the lengths of 26 CORNICE WORK MANUAL CORNICE WORK MANUAL 27 all the lines as shown between the lines A' to F" and the miter line Xto X' of Fig. 31 and the true outline for any of the right hand parts of the outside miters in this foot molding. To get the left hand part, the pattern has only to be reversed. In fact the entire miter lines for the foot-mold- ing :an be taken from this one alone if the lengths and positions are cor¬ rectly placed and the patterns be properly reversed, to suit each particular position of the various parts. This applies to both the inside and outside miters. The stretch-out of the 3" projection is fully shown in Fig. 81. Add the 3" on the corresponding line as distance from point X to X" shows; the same is done with all the other lines. The distance between the miter lines D and X" gives the shape that the miter lines make the part appear that join on to the inside miter-line of the 3'' projecting parts. It is un¬ derstood that the actual length of these parts is governed by the length demanded for each part, by Fig. 25, Article Y. Fig. 31 merely gives the outline of these parts, and not the actual lengths. These can only be obtained'Jirom the plan and the front elevation, Figs. 25 and 26, of Article V. Fig. 82 is here introduced to show how the profile may be either placed above or below the miter-line of the plan. The two views of the profile also show how some beginners make the mistake in putting the lines in the wrong plane from the profile; that is, drawing the lines outward from the face of the molding, or horizontally, which is the wrong way in a square miter of a horizontal molding, instead of drawing them in a verti¬ cal plan, which is the correct way, as set forth in the description of Fig. 30. The two letters R, R' of Fig. 32, show the positions of the sets of lines that are wrong for a horizontal molding. The various hints, rules and reasons given for the different steps in the foregoing method, it will be well for the beginner to study and master in all their details. These once fully understood a long step is taken toward the rapid acquirement of the art of pattern-cutting as employed in cornice-cutting. As most rules following those given above are wholly or in part based on them, it is easily seen how important it is to first master them in the beginning of this study. As I have given the problems Fisrs. 30 and 31 at full length (or in other words), by the long method, in this article, I will give some problems of the same character, occurring in the cornice under consideration, by a shorter method. The dotted projecting parts of the stretch-out of the 3" projections of Fig. 31 are not turned up as on the other members of this molding. The reason for this will be seen by examining the front elevation and plan, 28 CORNICE WORK MANUAL Figs. 25 and 26 of Article V. Where these members join against the side of the brackets, no project¬ ing parts are met with, as is the case in all the front parts of this cornice where the foot molding joins the panel section. The small dots on one of the stretch-outs show where to mark the iron with the prick-punch, where the same is to be bent in the brake. The next point that the cutter must consider is how the various parts of the cornice are to be joined and fastened together. Figs. 33 and 34 give two ways sometimes used. These joints are between the top of the foot mold¬ ing as at A, of Fig. 30, and at the bottom of the panel section. The ways that these joints are made in different shops vary greatly, nearly every cut¬ ter or foreman having his own notions as how they should be made. Some use the style as in Fig. 34, others merely lap them and tack with solder, while some rivet and solder them, etc. In brief, whatever mode is used, allowance must be made in the laying out of the pattern for the material it takes to do the same, IX. BRACKET PATTERS. The eight end brackets and also the six center brackets are next to be gotten out. Fig. 27, of Article V, gives the profile of all the brackets demanded by the plan, Fig. 26 and Fig. 25 of the front elevation, Article V. Fig. 27 is drawn to a scale of three-fourths of an inch to the foot. The first step to get the patterns is to draw a correct profile of either side of one of the brackets. This operation, in order to be correct in every particular, is subject to the following considerations, which must be taken into account by the person who is developing the full sized working patterns for the brackets. The first of these is that the way the sides are going to fit and CORNICE WORK MANUAL 29 join to the stretch-out on front part of the bracket, is fully determined on. Some cutters allow for laps on the front face or stretch-out, while others merely allow for butting the edges. These two ways I regard as not as good as allowing for the laps on the side pieces. The laps when thus prop¬ erly placed make a neater, easier done and a far stronger job than the other ways. The pattern of the side of bracket B, Fig. 35, explains all the above as to where the laps are put to join the sides and the fronts of the brackets together. Another point to be considered is, how are the brack¬ ets to be joined to the planceer, the dentil band, the panel course and to the foot molding? As it will take 28 inches for the stretch-out of the planceer and dentil band together, it is best to make these two members out of one piece of iron as to their girth. The lengths of the different pieces are governed by the plan, Fig. 26, Article V, and have to be com¬ plied with as demanded. At the point nearest to the wall line of the top of the foot molding, as given by Fig. 30 of Article VII, it will be noticed that the same stands from the wall line one inch and so does also the' bevel panel of the frieze section nearest to the brackets. This shows that the back line of the brackets is to be calculated as standing off from the wall line one inch. At this edge allow one inch for flange to lay off at right angles to meet the panel moldings. At the top of the pattern allow one-half inch to lay off against the planceer and the same where the sides come against the dentil course. At the bottom of the sides allow one-half inch to lay off against the top part of the foot molding. After all the foregoing is fully considered and understood in every detail, the pattern may be laid out as follows: Draw a full size profile of the bracket, as from A of Fig. 27, Article V, to the foot molding. (The figure here given is three-fourths inch to the foot.) This has been done in Fig. 35. Then draw the top line of bracket which comes up under and against the plan¬ ceer. Draw the line that comes against the dentil band at the front and bottom of the same. Drop the line as shown for the back of the bracket. All this must be according to the profile, Fig. 27 of Article V. Now draw the lines showing the different laps, as in Fig. 35. The curved parts are to be notched as shown. The entire front lap of B, Fig. 85, must be turned inward to meet the face or front of the bracket, while the back laps are turned outward from tho bracket. The letters 1 I' I" of B, Rig. 35, give the laps which are to be turned inward and the letters 0 0 indicate those which are to be turned outward. The line A, Fig. 35, shows how a side of the bracket appears in a plan of the same, after the laps are all bent as described in the foregoing. The stretch-out is given in C, Fig. 35. This covers the front from X' to 1 , 2, 3, 4, 5, 6, to 7 of B. 30 CORNICE WORK MANUAL Corresponding numerals on C show where the same is to be bent and formed to the shape required by the profile. It will be noticed that the space x to x ot 13 has no corresponding space allowed on the stretch-out. This part is intended to be covered bv the ornamental rosettes shown in the front elevation Fig. 25, of Article Y. The foregoing describes the «ight end brackets fully; for the six center brackets which have a 3" projection far¬ ther out at the top than the end brackets, the only alteration necessary is shown by the dotted lines of Fig. 27, of Article V. No further description is needed for this point. The next step is to get out the planceer and the dentil band. Fi :. 86 gives the shape the same is to be formed to at 1; a J" bend downward is shown; at this point the planceer and the fascia band are joined in such a manner so as to form a drip. From 1 to 2 gives the " I i 2 Scale % to the foot , ! I -—-Tir— tJ Fig. 36 .jy width of the planceer for that portion of the cornice where the end brackets occur; the dotted line from 1 outward gives what is to be added to the center or 3" projecting part. From 2 to 3 forms the dentil band with a 1" bend back to meet and lap under the CORNICE WORK MANUAL 31 panel sections. The lengths of the parts of Fig. 36 are governed by the plan of the crown molding of Fig. 25, Article Y. The bed molding under the planceer and at the upper end of the face of the dentil band, of Fig. 27, of Article Y, will be considered next. The Fig. 37 gives the pro file of the above described bed molding from A, X, X', H to B. As this gives the profile of all the different members of this molding, it follows that the one view and also the one development of the miter pattern will answer for all the inside and outside miters. The only operation neces¬ sary to make this pattern do for all the different ends, is to reverse the same to make it fit to the end it belongs to. This point has been described and explained at length in the description of the Figure 30, Article VIII, and also in Fig. 31 of this article. The method I have used to develop the required pattern in this case is a somewhat shorter one than the one used to solve the problem involved in Fig. 30, Article VIII, the main point s x a of difference being that in this case, Fig. 31, no miter line nor a pbm drawing of this miter is used. This method is used by many cutters for the development of square horizontal miters. To develop the pattern for this miter, draw the line A', B, Fig. 37, parallel at any distance from the line H, X' of the profile. Drop lines at right angles from points B and P of line B and A as shown. Drop a line from A of line A, X and S to point A' of line A' to B. Next divide the curve as shown into as many equal CORNICE WORK MANUAL parts as desirable. In this case I have divided the curve into eight equal parts, This done, transfer the distances thus obtained on to the stretch¬ out. The distance between A to X is equal to the distance between line B, A' and noint H. Make all the other distances correspond to tnose given between the numerals as shown on the curve X to X'; this distance is shown in tbe stretch-out from line H to point X". From X" to B' is also equal in the stretch-out to the distance between X' to H and B of the pro¬ file. The remaining lines may now be drawn from points X, 1, 2, 3, etc., to point X' of the curve of the profile, to where they intersect the lines of the spaces as drawn for the length of the stretch-out. Where these in¬ tersections occur, as the numerals 1', 2', 8etc., to 7'and H and X" show, points are established through which a freehand line is drawn. This line is the miter line of the curved part of the molding as demanded for a right angled or square horizontal miter for this curve. As the miter under con¬ sideration has a square joint, it follows that the miter line is cut at an angle of 45° on all flat or horizontal surfaces occurring in the same. As the surface of X to A and X' to H of the profile are of this kind, the cor¬ responding parts of the stretch-out must be cut at an angle of 45° from the point that occurs at the extreme outside junction of tbe horizontal surface of this right angle. This is done by the line X" to line B of the stretch-out and also at from A' to H.' Any vertical surface from a horizontal one, as shown by line H to B of the profile, is also drawn perpendicularly or verti¬ cally from the general horizontal position of the stretch-out in the case. This is shown by the line from point B' of stretch-out. This line is equal in »*1 \ DQ \ qq CO CD lbs SIDE VIEW length in the stretch-out to line H B of the profile and ends at the point where it joins the 45° miter-line of the horizontal part. The above des¬ cription, although giving only the details of one of the simplest of the com¬ mon kinds of square horizontal miters, embraces all the principles ever made use of in developing even the most complicated miters of this class. To master the two methods as given for square miters, means a long step forward in the art of cornice pattern cutting. In this pattern I have omitted to draw out the laps for joining the miter joints together, leaving this part to the judgment of the student. The mode to follow on the miter line from A', H', 1 to 7, X" to N and B' is similar to the mode shown for laps in Fig. 35. CORNICE WORK MANUAL 83 } X. PATTERNS POR PAJStEE SECTIONS. The panel section is the next part of the cornice which I will discuss It will be seen by referring to Fig. 25 of Article V, that this section has all its members in a straight line, that is, none of the members project out from the wall line any farther than any other member in this section of the cornice. In the elevation they are all of one height, the only difference being in the width of the different members as compared with each other. As it is not necessary to lay out all the members, they being alike in every particular, with the exception of the width of some of the members from each other, I leave it to the student to take care of this point himself. In this case a different kind of molding than described in former arti¬ cles, is presented, namely: A horizontal molding mitering onto, or with, a perpendicular one. The moldings involved in this case are of the plainest and simplest of this class. The distinguishing difference between a horizontal molding mitering with another one of the same kind, such as the foot molding and a horizontal molding mitering to a perpendicular molding, is that they cut the face of the molding, or in other words cut the same with horizontal planes for the horizontal and perpendicular moldings, while for horizontal moldings only, they cut the same from the top to the bottom, or vertically. All this is plainly shown by the drawings of the two styles of moldings in Figs. 80 and 32 of Article VIII, for the horizontal molding, and Fig. 40 in this article for the horizontal and perpendicular moldings. I will take one of the 2' square members of the panel sections of Fig. 25, Article V, and show how to lay out this member, Fig. 38, from A to B gives a sectional view. The dotted line from B to C, and from E to F is merely given to show the manner in which the laps are made with other parts of the structure. In this figure I have also shown the po¬ sition of the dentil blocks between A to E. X to X' shows a side view of the position of the crimped, or corrugated piece in the center of the panel. Fig. 39 gives a plan view of the panel only. The two views are drawn to the scale of 1'' Fig. 39 to the foot. These I will call the working drawings. If drawn correctly they give all the data from which the entire patterns for all these members may be obtained. Fig. 40, A, shows how one corner of the molding appears 34 CORNICE WORK MANUAL when done. To obtain the stretch-out for the bottom horizontal part of this molding, proceed as follows: Take the Fig. 38, this gives at B, 1"; then from this the slanting part, which is 4" to B', from B' to X a back, and another J" up, altogether making 6". This gives the entire width of this part of the panel molding. To lay out the stretch-out, draw line 1, of B, Fig. 40; make line 2 parallel from line 1, but 1" apart from the same; from line 2 to line 3 is to be 4"; from line 3 to 4 one J", ,and from line 4 to 5 one also. This is shown in B, of Fig. 40. To obtain the distance that the slanting 4" part is to be cut so as to have the right bevel for the miter re¬ quired, extend the line 1, 1-* of A downward, as shown, from point 1*, to the extreme outer line, or from 1* to l-*, which gives the true or direct dis¬ tance sought. Transfer this distance to B of Fig. 40 from line X, X' out to the extreme edge, as shown at X". Connect point X and X" by a line as shown; this line is the miter line for the slanting part of the molding. The distance from point X" to line 1, 1* is shown and connected by a line perpendicular from either one of the lines, 2 or 1, 1*. The distance between lines 3 to 4 is connected likewise. Then the distance between lines 4 and 5 is cut by a line at 45 degrees from one to the other. This is shown in B, of Fig. 40. The reason that the last described line is cut at an angle of 46 degrees is, first, because the surface of this part lies at right angles to the member that is to join to it, and both surfaces lay in the same plane, that is flat, and also because both pieces being of the same width, it follows as a consequence that if they are to be mitered to each other at right angles, that a distance equal in width must be taken off the inner edge of both the pieces, as the pieces are wide. In the case of the miter line for the slant¬ ing of 4" part, the conditions are different from the above in so far as only a foreshortened view of the molding is shown in A, of Fig. 40. If there were no deviations from a flat plane, a 45 degree miter line would do for this part. But the shape being as the drawings demand, no other course is left but to strictly follow them. Bear this in mind, that the more a straight surface of a right angled mitered molding deviates from a flat plane, the less de¬ grees the angle has from a 90 degree angle, 45 degrees being the limit for CORNICE WORK MANUAL 35 right angled miters. Fig. 40 also gives C a profile of the bottom horizon¬ tal member of the panel loops when formed to its final shape. This gives all that is necessary for the miters of all of the panels, the pattern having only to be reversed for the adjoining members. For the sides, the plan gives the width, and the end view gives all the particulars for the top member of the molding. Figs. 38 and 89 also give all data as to the length for the side pieces, while Fig. 25 of Article Y gives the length for bottom and top pieces. In Fig. 40 B C shows how the laps are best placed. This is a matter which I leave to the student. The small panels between the brackets where they are close together, are, in every way, like the larger ones as to the laying out part. The measurements, of course, are smaller as to their width; in height they are the same as the others. The shape of the dentil blocks is shown by Fig. 25, Article Y, and a side view is given in Fig. 38. Fig. 41 gives the pattern. The drawing shown is so clear that it is unnecessary to give a detailed description at this time. The different views presented show how the bends are to be made. The side view in Fig. 30, and the position on the face of the pattern show where the outward and the 2" in diameter projections go. Each of the 2" in diameter projections may be made out of a strip one half inch wide and six and three-eighths inches in length; this allows nearly one-eighth of an inch for lap, foim and solder the strip into a circular band; make as many of these as the entire job demands, then cut out the two-inch covers or disks, solder these to one end of the half-inch wide bands, get all these out, and when the dentil blocks are cut out, formed and soldered into their proper shape, as demanded, these bands may be soldered on to the dentil blocks. The dentil blocks are then ready to be attached to their po¬ sitions as demanded by the drawings. A substitute projection for the two- inch blocks may be used in the shape of half balls or zinc hemispheres, that is if the workman so desires, these will come somewhat cheaper than the flat ended cylindrical shaped half-inch outward projections. XI. !*IGHT~Af4GIiE 1*BTUH1SL miTEI* PATTERS. The last members of the cornice proper, as given in Article Y, Fig. 25, are the fascia band, crown molding, deck and deck molding. To lay out these parts, so as to cause the least possible waste of material, is the prob¬ lem. It is necessary to consider what sizes of sheets are best suited to cut the different parts wanted, from, so as to avoid waste. To determine this point, so that the best results may be obtained, the cutter must use good judgment. At times other considerations must be borne in mind, besides \ 36 CORNICE WORK MANUAL how to best suit the work so that there will be less cutting of material which may, sometimes, cause some little saving of stock, but in the endne- L CORNICE WORK MANUAL 37 oessitate a greater amount of extra labor to make the work come out right, thus making the cost of the work far greater than if in the first place a small amount of material had been sacrificed. The ability to decide cor¬ rectly just what course to take on all occasions, where points are involved, as described in the foregoing, is what makes some cutters so much more valuable and efficient in a cornice shop, than those who are lacking in this most essential faculty. It is a very easy matter for a cutter, by making a few mistakes of the general character as indicated to very materially re¬ duce the gross profits on the job. It is a good rule to carefully study all the various phases of each piece of work as it comes up. Do not jump at con¬ clusions at the first moment, but weigh well all the different peculiarities of each member of the work, and when fully considered, go ahead. A few minutes more devoted to the proper consideration of a job in the beginning, will often save hours of work afterward and, as a consequence, will save considerable expense. The foregoing not only applies to the parts of the work under discussion, but equally embraces each and every item that goes toward making and getting out any part of cornice work. To illustrate the practical application of some of the foregoing hints: Take Fig. 42; A is the elevation of the deck and deck moldings, and also of the crown molding and fascia band of the cornice, described inArticle Y, Fig. 25. I have drawn these detail drawings to the scale of one inch to the foot. After the student has drawn the details of this part, I will say to full size, for his convenience, and also to be absolutely correct in all details, the first question that arises is: How is this work to be done to the best ad¬ vantage? By measuring the part from D to E it will be found to measure 15", and from o, E to F of the profile, it will be found to measure 24". As the most profitable sizes of iron commonly used in cornice work are the sizes of thirty inches in width and less, and as there are no sizes made that would be necessary if it were desired to make the entire profile out of one piece, namely 39", it follows that some other size will have to be used, and also that this member must be made out of more than one piece, in regard to its girt or stretch-out of the profile. The best plan to meet the conditions laid down in the above is, to take sheets 30" wide, and split these into 15" strips, lengthways, and, as the distance from D to E is 15", these strips will answer for that part of the work. Then from o, E to F, use 24" wide sheets. This settles the question as to what sizes of iron are best adapted to make this portion of the cornice, and that without any waste of material. The development of the various miters occurring in this part of the cor* nice, is done in the same manner as I have used in developing the miters for the moldings described in Article IX, Fig. 37; namely, by the short meth¬ od. As the different members are all horizontal moldings and panels, and 38 CORNICE WORK MANUAL also all the miters are right-angled or 90° miters-, the method used is at once the easiest and quickest that could be made use of for the purpose. I have also given a further illustration—how the lines used to obtain the pro¬ jections may be used either above or below the profile or elevation. This I have done by showing the development of the part from D to E, below part A, as C shows from H to I, and for the part from o, E to E, of A, by the part B, from KtoL. The distance between the line K, to line L, of B, is equal to the distance from point o, to F, of A; all the other parallel lines in B are correspondingly placed as the profile A demands. The dis¬ tances that the various parts of the projections extend outward are also shown in the drawing. A full and detailed description in every particular of the steps to be taken to get out a miter of this kind has been given in Article IX and need not be repeated in this instance. The full stretch-out and development of the miters for the section from B to E, of A, are given in C, from H to I. The lines H to I are apart from each other equal to the distance of the stretch-out D to E, of A. The numerals 0, to 5, of A, are placed on the stretch-out of C, as demanded by the profile A, a ; d correspond¬ ing lines are dropped to the intersecting points of the parallel lines of the stretch-out; through these points of intersection the miter line is drawn, as C gives. The miter line thus developed answers for all parts of all the va¬ rious miters in this section. The student has but to reverse the pattern to make it fit to the member it belongs to, as the occasion demands. I have shown in C, how the 8" projecting parts are cut; the same have also been shown in B. The small circles on the stretch-out of one of the 3" projecting parts show where the bends are to be made, as required by the profile. Fig. 48 gives a plan of one of the 3" projecting double miters of this member. This part of the cornice has four outside and two inside miters, as Fig. 25, of Article V, shows. In the foregoing descriptions and developments of the cornice, as given in Article Y, Fig. 25, I have described the ordinary, right- CORNICE WORK MANUAL 39 angled horizontal miters, both inside and outside, as well as the mitering of a horizontal molding to a vertical one. In the development of the right- angle horizontal miters I have made use of both the strictly geometrical rule or long way, and also of a short method, to attain the desired result. I would advise the student to thoroughly master the rules, as laid down in the problems given, as they are but the first steps to the more complicated problems that will follow, as more difficult work is considered further on. XII. PATTERS OF A PEDIJVIBNT AfiD TflEIf^ DEVELOP- fAHfi T. In Article V, the Fig. 25 shows a full front view of the pediment of the cornice under consideration; it is drawn to the scale of 3-16 of an inch to the foot. I will now discuss this member in detail. Fig. 44 is drawn to the scale of 1" to the foot, and is the lower front half of the pediment. The profile of this section is shown by A for the columns, and by B for the plain, and the ornamented paneled part as shown by Fig. 25, of Article V. The outside face measurements of every necessary detail are fully given in this figure. The distance from A to B gives one-half of the front, commencing from the extreme outer edge of the top of this section at A, to B, the cen¬ ter line of the entire pediment C. The flat part between the 1" square projection at the top at A and the 1" molding at C is 3£" vertically. The 40 CORNICE WORK MANUAL bottom of the molding extends back far enough to form a lap with the columns and also the vertical panel section where the junction of these two parts occurs. The peculiar features that are connected with the proper fitting and correct joining together of these parts are fully shown by the two views in profile. The square miter for the straight parts, and also for the square miter for the molding underneath the same, have been explained in the preceding articles. The same has also been done in regard to how the miters are to be developed for the panel moldings in the panel section of the main cornice. In this case these moldings are all square cornered and flat surfaces, the same as Fig. 40 of Article X shows. The stretch-out of these moldings is shown at D of B, of Fig. 44, the height is 13" by 8J" for the extreme outside measurement for the two end panels, and 81" square for the center panel. The center ornament may either be made by hand, hammered to shape, or a stamped zinc ornament may be soldered into position, as demanded by the design of this section. The columns, pillars, or pilasters are 17" high or long, by 4 Y' wide and project out 1". The sunk panels as shown are 1£" wide by 18" Plan of Column ll_r* Fig. 45 t £ Plan of Base X pr ) \ L— - n Fig. 46 long, and 1" deep. Figure 45 gives the plan view of the same. These columns can be made entire, out of one piece of iron, with the exception of the sunk panels. The stretch-out is from A to C for the front. Then from C to B, which is 22" back, the side of that part of this section of the pedi¬ ment is to be made as the measures given. The side and front may both be made in one piece and cut as demanded, for the height 17" and at each end at the top and also at the bottom, making this piece for its height CORNICE WORK MANUAL 41 18". The length is to be as the drawings demand from A, C to B of Fig. 45. All the measurements are marked on the front view C of Fig. 44, for this portion of the work. The next part to get out is the base of the column. This is 14" long and 4J" high for the vertical front part, and also for the front side. The molding measures 1" upward to where it meets the columns. Figure 46 gives a plan view of the base. It will be observed that the front of the columns stands back from the outside face of the base more than from the ends of the same. This is shown.by the front view C for the ends, and by the side profile A at X for the front molding, and also by the profile B at the corresponding point of that figure. As it will be seen, the moldings at the two ends are alike botli in height and width, and that both differ from the front molding in widtE. but not in height. These conditions are caused by the fixed positions that the columns are placed in, on the base, as demanded by the front and side views. In other words, the junction of these two moldings may be termed, the miter¬ ing of two horizontal moldings whose profiles are different from each other.. Owing to this particular combination of circumstances the following method must be used to solve the problem in this case, which is: how to obtain the miter line for the two parts for this miter? The first step to be taken is to get all the particulars and correct plan of the moldings as demanded by the plan, Fig. 46, and also from the de¬ ductions arrived at from the front and side views of Fig. 44. These give the line D as the line of the moldings, and the line from 14 to X to 14 as the outside line of the two sections of the desired moldings. The line 15 to point C to 15' is the outside of the base. Within the above described limits or lines, the profiles of the two parts of the mitering moldings must be drawn, in order to comply with the required conditions as imposed by the plan, front and side view of Figs. 44 and 46. I will first draw the smaller molding of part 1, Fig. 47. This is given by the line 1 to 15. From 1 to 2 is for the lap under and inside of the columns. The curve from 4 to 14 I have divided into ten equal parts, as given by part 1, of Fig. 47. From these points as found drop lines to the miter line D to X, as shown. The position of the miter line as given, instead of cutting direct from point I) to C in a straight line as would be the case in a regular miter or angle of 90°, is drawn instead from D to X, and from there to point C. By examining the course of the plan lines of the moldings it will be seen, that if the out¬ side lines are to conform to the demands of the plans, and to be pa¬ rallel with each other, and also from the outside face line of the base of the columns, no other point of juncture is possible for them to meet 42 CORNICE WORK MANUAL at than the point at which they are shown at, to do so, namely, the point 'X, and they are accordingly so placed. From the points where the lines 4 to 14 of the curve of part 1 intersect the miter line D to X, draw lines at right angles, and continue the same indefinitely. The solid line A, A and from A to B, gives the extent of the mi¬ ter of the curves only, while the line from D to D and from D to E gives the measurements for the development of the entire moldings as will be shown further on. At any convenient distance from line D to E, draw the line F. 15. as shown in part 2, of Fig. 47. Then transfer the distances for each line as contained in the space between the curve of part 1 and line E' to 15, to the same lines above line F to 15, of part 2. The distance so transferred gives the length of each line and also determines the points through which the curve of the profile of the molding of part 2, of Fig. 47, is cut. The curve thus found is the true CORNICE WORK MANUAL 43 shape that the molding as found must assume in order to enable the same to miter to the molding of part 1, of Fig. 47, so that each point of its hori¬ zontal surface is in an equal plane with the other molding, or, expressed in another term, level. To develop the patterns get the stretch-out of each part as shown in Fig. 48. For part 2 take the distance from 1 to 15 of part 2, of Fig. 47, and mark the same in line D to B, of part 2, of Fig. 48. From the points thus established and numbered as shown in part 2 of Fig. 48> draw lines at right angles to line D to B, Then take the distance or length of the lines contained between the line D to E and the* line D to X and C, of Fig. 47, and mark them on to the lines 1 to 15 of the stretch-out of number 2, of Fig. 48. Through the points thus formed, the miter line D to C is obtained for this part. For the stretch-out of the part number 1, of Fig. 48, a precisely similar operation must be gone through with to ob¬ tain the result sought for, with the difference, of course, that the measure¬ ments as found vary somewhat from those of the part number 2. All the loregoing is fully shown in the two figures 47 and 48. It is possible, if so desired, to make the entire base out of one piece of iron. Care must be taken to get the measures for the length of the center section just right, which is from point 2 to the corresponding point at the 44 CORNICE WORK MANUAL other end (not shown in the stretch-out) 12^", or from point C to the other end of base 14". The measures for the parts of the sides are governed by the plan, Figs. 46 and 45. The development of Fig. 48 gives the measures for the moldings. That part of the base that is below the line B K may be added. The height of the same is 4J" for the face and 1" for the lap on the deck of the cornice proper. The drawings show plainly where all the laps go and how they are to be arranged to the best advantage. The flat part in the panel section, which is 5" wide, is soldered into position as shown by the profile B of Fig. 44. The student will do well to study the various ways that the different parts are intended to fit and lap together, and also the general arrangement of the various sections as given in Fig. 44, in relation to each other, so that when he has work of a similar charac¬ ter at other times to do, the hints and suggestions given in this case may be of benefit to him in future work. XIII. THE PATTERS FOH R SEG^E^TAL SECTION OF R PEDI^EflT. The working drawings of the top section of the pediment, or the mem¬ ber to be drawn after the entire lower section of the pediment has been made up, is shown in Fig. 49. This figure is drawn J" to the foot as is also Fig. 50, which shows the side elevation, profile or section of Fig. 49. The main dimensions of both drawings are given in figures. One-half of the front is only shown, as all the details can be taken from the same, as well as if the entire front had been drawn out. From 1 to 2 and from 3 to 4 of Fig. 49, embrace all of the circular moldings occurring in this mem¬ ber; the profile of this molding is given from 1 to 2 of Fig. 50. From 2 to 4 and from 2 to 5, the center, or segmental flat piece of the pediment, is shown in Fig. 49, and is correspondingly shown from point 3 to 4 in the elevation, Fig. 50. The fluted pieces of the front are shown in the ele¬ vation from point 3 to 6 in Fig. 50. From 6, 4 to 7 of Fig. 50, gives the section of 6, 7 to 5 of Fig. 49. The fluted pieces and the segment of the front view are supposed to represent the rising sun and the rays from the same. The position that the back (upon which the fluted pieces are fas¬ tened) occupies is shown by the distance between the points 3 to 4 of Fig. 50; that is, back from the moldings, or in other words, back from the CORNICE WORK MANUAL 45 lowest outside vertical face of the same. In the development of these two views, into working drawings to be used in the shop, from the drawings of Fig. 25, of Article Y, and Fig. 28, of Article VI, the cutter need not be over-particular, and in fact cutters never are, in drawing hidden lines, or lines that do not show on account of their positions being behind other sur¬ faces, by dotted lines in designating their true positions in a view. On this point the cutter generally uses his own judgment, as it is often more convenient for him to make a line solid instead of dotted, as it should be if done according to the strict laws of delineating drawings of this class. The reasons for this are that if the position of a certain hidden line in a draw¬ ing is to be referred to often, and if it should happen that the line particu¬ larly wanted is located among a number of lines of the same class—namely, hidden or dotted lines—it can be very readily understood why some cutters make them solid instead of dotted. The foregoing has in some cases been done in the problems presented in these articles, to assist in the ready find¬ ing of lines of this class whenever wanted. Bearing in mind the foregoing hints, the workman may now proceed to draw the two elevations of the front and side view, or section of the side, as given by the Figures 49 and 50. Get the radius of the curve 1 to I of Fig. 49, from the dimensions deduced from Fig. 25, of Article V. Then the other curves are found in the same manner and each placed in its position. The Fig. 50 is found in the same general manner from Fig. 28, of Article VI. Be careful that every detail is in its proper and correct position and place. The width of the pediment on its top is 27". This may be cut out of 28" iron. Make this piece twice the length from 1 to 3. The face view of the part A of the molding is made just as Fig. 49 gives it; also the parts of the views B and C of the 46 CORNICE WORK MANUAL same figure. The pieces which occur under the curves A, B and B are flat and are made in width as the profile Fig. 50 gives, and in length as the positions they occupy in Fig. 49 demand. All these pieces are to be drawn and cut out with the proper allowance for a quarter inch edge turned as the occasion may be best suited. This way of cutting each member of this molding is followed in most shops that are not provided with special ma¬ chines for turning out the shapes for finished moldings. The really difficult shape to get out is the curve molding D; that is for most cornice workers and beginners, but it is in reality no more difficult than the development of any conical shape, if certain fixed rules governing this class of work are followed. For a shape as called for by the profile Fig. 50, from points A to B, for its outward curve, and for its longest curve from right to left, as Fig. 49 gives one-half of, from X to X',the first step to develop the required pattern is to proceed as follows: Make the radius the same as that used for the development of Fig. 49, as the line from A to 0 gives for this particular curve in this figure, No. 51. In fact, from 0 to A and B is an exact repro¬ duction of the same corresponding part of Fig. 49. Draw the profile for this member as demanded by Fig. 50, as is shown by A, 1 to 2, of Fig. 51. Draw line B solid across the face of the molding; also the line D to D' at any distance from line B. The line, if extended from point D through point D', must cut point 0. Draw the curve D to D' same as the profile 1 to 2. Divide curve D to D' int© any number of equal parts. In this case I have done so into four equal parts. Then from point 0, as center, draw the curves as shown through the line D to D', cutting the points 1 to 3 as pre¬ viously found, and extend the same to curve 0 to S. This curve 0 to S is the same as shown at the end of the same number in Fig. 49, and the dis¬ tances are as a consequence the same from this line X" to 0 at all points of its length to the curve X of Fig. 49, as they are from the lines B to S and curve 0 to S of Fig. 51. This done the next operation is to draw the line 1, 2 to the point C' of Fig. 51. Extend the same some distance above the point 1, as is shown in the Fig. 51, above point 1. The reason for this will become apparent further on. It will be seen that the line 1, 2 to point C" just cuts the most inward points of the curve 1 to 2 and and also that the line from point 0" to point 0 is at right argles to line A, 2 to C. To give a more comprehensive exposition of the reasons why these lines are thus placed, in the first place imagine the profile that the points A, 1 to 2 gives, to be hinged solid at the line A to 2 so that the same could not be moved either up or down, but could be swung around from its present p’ace, so as to assume a position at right angles from the one that the curve 1 to 2 now has. That is, so that the curve 1 to 2 would face, or would bq CORNICE WORK MANUAL 47 in the direction of the person looking at the drawing, if the same is at right angles to his line of vision, straight ahead. The curve would appear to him as a straight line, and instead of appearing as it now does, would simply merge itself into line A to 2. Now if the curve 1 to 2 had been turned or swung around as described, and also at the same time the line 1, 2 to C" 2 to C, but the distance of the length of line C' to C away from point C on the same plane. This is the position of jthe poit C" established on the same plane, behind point C; by this the line 1, 2 to C" as projected through these points, the true length of line 1, 2 to C" is shown and gives the data or its actual length, and with the especial advantages that descriptive geometry gives to us, we are enabled to do all the foregoing in one plane 48 CORNICE WORK MANUAL as has been done in Fig. 51, by one view only, by simply swinging the profile and also the line 1, 2 to O' into the same plane that the front view is in. The line 1, 2 to C", from C" as center, is the radius; draw the curve from point 2 to point 3, this curve to be equal in length to the curve S D to 2 of K. Draw the curve 1 to point 4 in the same manner and equal in length to the curve I to B. Divide the space between the curves thus drawn into four equal parts; from C" as center draw curves as shown, cut¬ ting the points thus found as in the pattern X. Transfer the distances from the lines 1, 2 and 3 of part K, contained between the space B S and 0, to the lines numbered the same in the pattern part X. The distances so transferred are set off in the space contained between the lines 4 to 5 and the points Nos. 1, 2, 3' and 3 of the pattern X. The points 1, 2, 3' and 3 being thus established, a free hand line may be drawn through them. This gives the curve demanded by Fig. 49 at the end X of the outward curve. If the pattern for the pieces just described is to be raised to shape by hand it is advisable not to add any more to the same in width; that is, do not try to make any more of the curves than the curve X out of one piece. If a forming machine is to be used the curves A' and B' may be added. The whole development is fully given. The lines A 3 and R are for the top bends and lines B 8 andK for the bottom bends. It is understood that if the forming machine is used the proper shaped dies for the same are used as demanded by the profile. If the curved molding X and also the other square mitering curves are made by hand, all laps mus- be allowed for in the development of each part. The foregoing operations may be briefly termed the development of the patterns for a curved molding the profile of the same having its curve outwardly or convex. The mold¬ ings when put together and completed will form the crown moldings of a segmented pediment. In raising or bumping the form to shape, care must be taken not to raise the curve too deep at the start nor to stretch the same too much. Be careful in all the operations in this kind of work. Begin¬ ners are very liable to be in too much of a hurry; they want to see the results of their hammering too soon and, as a consequence, commence to pound too hard in the start, thereby often raising the metal too deep and if not actually spoiling the work outright, they turn out a very poor job at the best. This last result being brought about by their attempting to undo with a lot of hammering on the material what their undue haste spoiled in the start. This would never have occurred if they had carefully felt their way along and made haste slowly until such time when by experience they had acquiied the necessary command over their tools and the skill and ability to judge all the nice points involved in getting out CORNICE WORK MANUAL 49 work of this kind quickly and well. These moldings can be made or cut out of as many pieces as is consistent with good judgment for saving material. Another factor entering into the work has to be consid¬ ered if a well proportioned job is to be done, that is how long each piece is to be cut so as to have the joints evenly divided in the length of each curve. These joints I leave to the workman to decide for himself. The joints can be made to butt against each other and a strip soldered over the junc¬ tion on the inside, or they may be made with lap joints, as the workman may decide to suit himself. -N 3 Fig. 52 Fig. 52 gives the straight part of the miter that occurs at the point X of Fig. 49. This is a straight molding as to length; the profile is the same as that of the curve K of Fig. 51 and as a consequence is developed the same as a right-angled horizontal miter, which has been done as shown by Fig. 52. The modus operandi to develop a miter of this kind has been fully given in former articles and need not be repeated in this case. I will now describe how to develop the patterns for the flutes or rays for the Fig. 49. It will be seen that the entire number of flutes for this section is twenty- five. The figure gives half that number. In drawing out the working drawings, make these members full size and very exact. There are two or three ways to get these pieces out. One is to cut the entire field out of one piece, curving the flutes as demanded, and also the other bends. This way I do not regard as very practicable. The usual way to get out the pieces is to take each flute separately. In this instance I will take the one marked 2. Get the profile of both ends as in Fig. 58; A for small end and C for the large end. The stretch out is developed by obtaining the length of the flute 2 of Fig. 49, from B to A. Make the distance from 1 to 2 of Fig. 53 equal to the corresponding one in flute No. 2 of Fig. 49, as is done in Fig. 53, for the length of the same. For the width of the small end, the curve A gives the stretch-out; for the large end the curve 0 answers the desired purpose. Draw the straight lines at the ends of the angle as the ends of flute 2 of Fig. 49 demand. This stretch-out is formed as the two forms of the ends require. For the rounding end piece D, make the line N to N' equal to the curve of C, and the distance from S to S' equal to whatever the curve of part C demands which is in a line at right angles to the line N, N' of D. Connect the points N, S, N' by the curve as shown; then con- 50 CORNICE WORK MANUAL nect the points N, N'by a sliglitly curved line; this extra allowance of material is to allow for the draw in raising, and also if the edge becomes frayed during the hammering and stretching process so that the same may be trimmed off straight and be fitted to the flute. To develop the center piece H, of Fig. 49, draw the front and side of Fig. 54 as the part A gives; from this the pattern B is obtained by a mode similar to that by which the pattern for the parts on the large ends of the flutes is obtained. The bal¬ ance of the flutes are to be developed in the same manner as described for the development of the patterns of the flute 2 of Fig. 49. The measure¬ ments to be suited by all the different flutes as the Fig. 49 demands for them. The method some use to get out this kind of work is to make the entire flute in one piece; that is, the straight curve and the end or round curve of each flute all out of one piece. This may be adopted if the work¬ man is so inclined, but I regard the way as described in detail as the cheaper and somewhat easier way to obtain the same result. The mode of fasten¬ ing the fluted section to the pediment is done in some shops by merely soldering the edges of the flutes together and then tacking the same into the place they are to occupy. Others would put a flat piece in at the back of the flute, as the line 3 to 4 of Fig. 50 gives; this last way is the best by all means. It makes a solider and better job all round. The part H is first soldered on to the back and then the flutes are put into position. This completes this part. The lower edge, which is fastened on to the straight part, is to be turned outward one inch, then riveted and soldered on to the lower section of the pediment. This one inch turn must be showed for in preliminary calculations when the patterns are drawn and cut out. The back of the entire pediment is to be flat, covered with tin. A suitable flange may by turned to lap the top or deck of the same over the edge of the lin, and nailed firmly over the same when finishing the work on the building. CORNICE WORK MANUAL 51 XIY. DETAILS AJMD PATTERNS FOR A FILIAL. The Figures 55 and 56 give the detailed drawings of the finial as the elevation, Fig. 29 of Article VI, show. These two figures are drawn to the scale of 1" to the foot. The full-size measurements are marked on the drawings. I will first describe a short method, to develop the pat¬ terns for part A of Fig. 55. The shape of this part is a frustum of a four-sided pyramid. The manner in which this shape may be developed for this case is as follows: Draw four lines bounding the numerals 1, 2, 3 and 4. Make the lines 1, 2 and 3, 4 a distance apart equal to the slant height of the part A of Fig. 55. Connect points 1 to 8 and 2 to 4 of Fig. 57. Continue these lines so that they will meet at the apex C. From C as center use line C to 3 as radius; draw the curve 5 to 6 and also curve 7 to 8. Step off the distance from point 3 to 4 on each side for these two parts one and one-half times the length from 3 to 4 for each as shown. Do the same for the larger curve, as is shown in Fig. 57. Connect the points thus found by straight lines. Allow for lap on one end. The dotted line 52 CORNICE WORK MANUAL shown indicates where the curve of the top of the pediment cuts through this part. This gives all the necessary details how to lay out this shape in one piece. The edges to turn out so that the finial can be fastened to the deck of the pediment are to be allowed. This method is the shortest, quickest and cheapest method that can be used for the desired result. The four sides may also be made out of one piece for each side, one separate piece for all the three parts, A, B and C. This method I would advise to be used only if the sides of the parts A, B and C must be made in four pieces only; that is, one piece of the material making one side of all thre sections at one and the same time. This piece answers for a pattern for the three other sides; then all four pieces are bent to the shape as the out¬ line of parts A, B and C, of Fig. 55, gives. These should be soldered to gether strongly. Two of the sides are to have suitable laps allowed when the pieces are made and cut out. The development of part B of Fig. 55 is given in Fig. 58. Part A of this figure is the side view and profile of a horizontal molding with a square miter. The part B is a plan view, and shows a different way from that of A to get the data to develop the patterns for the miter pieces. Patt C is the pattern. Divide the profile part A into equal parts as 1 to 4 shows. This gives the first step for method number one. For method number two, the first part is given by B, Fig. 58. Line 1 to 2 gives the miter line. The outlines of a vertical view or the plan are given by the lines 3, 2 to 4, and for the inside from 5, 1 to 6. The curve or quarter circle 7, 9, 10 and 4 gives one-lialf of the outline; this curve divided into equal parts as shown, and lines dropped to the miter line 1 to 2 of B give the data for the first part of the second method. For the stretch-out, draw the line N to N/ any length; draw a perpendicular line CORNICE WORK MANUAL 53 at the center of line X to X' as the line 1' to 1" shows. Draw on both sides parallel lines as shown by the lines 2' to 4' and point 5. The same is done on the other side of line 1' to 1". The various distances of part A contained from line 6 to 5 and the point 1 to 4 and 5 may be transferred to the stretch-out C as has been done and is fully shown in the drawing, or the measures may be taken from part B from the distances contained be¬ tween the line 1, 8, 4 and the miter line 1 to 2. Both the methods as given accomplish the same result, but in themselves are somewhat different from each other. The part of the pattern between the points X, V to 1" is but a duplicate of the other half of part C and may be drawn in the same manner as that one has been done. Fig. 59 gives the development of part C of Fig. 55. A of Fig. 59 is one-half of one side of the desired shape. Divide this part into as many equal parts as desired. I have divided the same into six equal parts as is shown by the profile line by the numerals 1 to 7. Draw the stretch-out line of B from A to B equal in length to the profile line of A. Divide the line A to B of B into as many equal parts is part A has been divided into. Draw the perpendicular parallel lines 1 to 7 as given. Make the distance from the center line to the out¬ line for each numbered line of B equal to the corresponding line in part A. Draw the curves free hand through the points where the distances end on the lines as found. Allow for laps on two of the pieces for the sides; 54 CORNICE WORK MANUAL also for laps on all the four pieces at their respective top and bottom ends. The sides are to be formed to shape and soldered together. The foregoing descriptions of the three parts of Fig. 55 give all the patterns required for these sections and they may be made in three separate pieces. But if it is desired to make them in one piece, the patterns as developed may by placed on such a manner that they make but one pattern for each side of the four sides that are required for the finial. When this part of the finial is put together it will be well to put a bottom or a piece inside of the part at S S of part A of Fig. 55; also one at B, and one at or near the top end of part C. These bottoms tend to strengthen the structure and also to steady the rod made of pipe which passes through them, as is fully shown in Fig. 55. For the ball or part D a spun zinc ball may be used, such as can be bought from a dealer in ornaments used in this line. If it is preferred to make a ball for this purpose, and it should be decided to make one out of two parts the general directions given in Article XIII for raised work of this class will be found to cover this case sufficiently to enable the workman to obtain all the data required. Fig. 60, part A, gives the side and end elevations of the spear head. Line A to B gives a plan for the same at that point, and C to I) for the end. A gives a view of a short tube soldered on to the bottom end of the spear; the other end is to be slipped over the rod, fas¬ tened to it by a pin or bolt and also soldered to the same. The bottom end of the spear is to be rounded so as to join onto the round tube A. The parts 1 and 2 of B of Fig. 60 are the patterns for the spear. For the top part 1 make the center line A to B equal to A to B of part A. The length of line B to C of part 1 is equal to A' to B' of part A. From A to C of part 1 is equal to A to B of part A. Both sides of part 1 are to be alike. This gives the pattern for one side of part 1. The bend is to be made on line A to B; lap3 may be made as suit? the fancy of the one getting out the work. For part 2, draw the center line, also line F to G- as shown. Make the distance from center line each way to F and G equal in CORNICE WORK MANUAL 55 length to the line A' B' of part A; the center line equal in length from line F G to line 1 to 2 of part A. The length of line H to L of part 2 is equal to line C to D of part A. Make the bend as demanded by the end elevations of part A on the center line of part 2. This gives all that is needed to get out the spear head. As to the arrow head and the feather end of the vane, the arrow head is made in a similar way to that employed in getting out the spear head, the measurements of this part to be followed as given by Fig. 56, as far as demanded by the drawings. The two parts of the feather end are to be soldered on to a tube as shown in Fig. 56. Each part is to be made double, that is, each part is to be one-half inch thick or is to have two sides, and a half-inch strip is soldered between the same. Fasten the arrow-bead and the other end securely to the rod or pipe. Full measurements for this part of the finial are given in Fig. 56. The ornaments as shown at E, Fig. 55, are made foi their side views, as the drawing shows, and they are to be three-quarters of an inch wide viewed from the end or the side at right angles to the one shown in the figure. There arc four of these pieces, one at each quarter of the rod ? all ip 56 CORNICE WORK MANUAL one plane. The swivel joint as shown in Fig. 56, is made by a sleeve being fastened as shown. The four-way swivel, as shown, has the ends of the vane pipe screwed into its ends. The cross is fitted to the vertical rod or pipe, as shown, so that it turns easily. The entire measures for the vertical rod are given in the drawings. It would be well to let the rod down into the deck of the pediment when placing the finial into position, and then solder the edges of the part A firmly to the deck. Allowance must be made for the above when constructing the finial at the shop. The Fig¬ ures 61 and 62 show the front and side view of the ornaments for the ends of the ^op of the pediment. Fig. 63 gives a plan view of the same. Fig. 64 gives a front view of the center ornament of one side of the finial. All these ornaments are to be of zinc, stamped to shape, or of a pattern some¬ what similar, as the figures show. XV. BT{KC1 HOS AND FASTENINGS op CORNICES to BUILiDINGS. The putting up of the cornice on the building is the last part of the en¬ tire work to be done in connection with the cornice, as described in Article V, Fig. 25. I may say that in no department of the work is it more neces¬ sary that good and careful work should be done than in this. It must not be imagined that simply because a good part of cornice work, by reason of ts almost inaccessible position, is beyond critical examination, that it can be done in any niancer that inferior and indifferent workmen choose to do it. It is not to be wondered at that work which ought to last a life-time, commences to show defects in a short time after it has been put up on CORNICE WORK MANUAL 57 buildings, when it shows badly jointed connections, wide open gaping seams, very irregular lining up, poor soldering and worse riveting. All the foregoing is generally the fault of firms sending out too much talent of the rough and ready sort, too many cheap roustabouts and helpers, when really the work ought to be done by good, careful, first-class mechanics of the highest grade of intelligence to be found among cornice men. It is an easy matter for a botchy workman to spoil the beauty and general sym¬ metry of almost any cornice, no matter how well made in the shop in the first place, by his bungling, unmechanical way of doing the work on the building in its final finishing stage. The idea is to only entrust work of this kind to men who can do first-class work neatly, quickly and in tiie end far cheaper than poor or “jerry” workmen could possibly do the same. One of the reasons why a good many first-class workmen do not care to do out¬ side work of this kind is that in many cases they do not like high climbing; also, the work to some extent is rather rough and hard on clothes, etc. Then, too, we all know how much more agreeable it is to work in the shop on inside work. But for all this, the work on a building, to be fully up to a first-class standard, must be done well, and it takes capable men to do it. The foregoing is rather a severe view of this matter, but I believe a just one. This should rather stimulate the student to become a first-class man, which is imperative in order to be able to do the highest class of work in the cornice trade. Having pointed out what to do and how it should be done properly, I will give a few different methods how this kind of work is performed. One of the first considerations when arrangements for putting up a cornice are made is to know if it is to be put up in pieces and sections, or if the cor¬ nice is to be put up in the whole, that is, the entire structure all at once in one piece. This point determined on, it is in order to make all prepara¬ tions for the special way that the work is to be done. The first method that I will discuss is this: Let it be supposed that the wall has already been built up and finished so far as the brick work connected with it is concerned. The problem in this case is how to provide suitable and ade¬ quate means to fasten, brace and hold or anchor the structure permanently into the final position which it is to occupy on the wall cf the building. The means to attain all this is shown in Fig. 65. In this fig. ure the general outline of the cornice under consideration is given. The line A, A' gives the outside face of the wall as built; B is the foot molding. I will first describe how to make this part of the work ready for the recep¬ tion of the cornice. It will be noticed that the board, No. 1, is placed against the face of the wall. To make this board fast, it is customary to drive wooden plugs into the mortar spaces between the bricks; then nail the 58 CORNICE WORK MANUAL board No. 1 securely to the wall, using the places where the wooden plugs are wherein to drive the nails securely. Have the board No. 1 perfectly straight and even, or in line. * Small brackets may be nailed at the top end of board, as the piece No. 3 gives, to support the board on top as No. 2 shows. This gives the support for the foot molding and extends along the front of the entire foot molding of the cornice. The section view, as given by B of this part, is to be made in all its particulars as the profile demands. For the upper part of the cornice the board, as D shows, may be fastened to the wall in the same general manner as the board No. 1 of B has been. The board D is also to be put up perfectly straight and in line every way, as demanded for perfect correctness, and as the measurements of the cor- nice call for. This is all clearly shown m the drawing, Fig. 65. As the deck of this cornice projects out from the face of the wall, the top sheath- CORNICE WORK MANUAL 59 mg boards of the same a e made to project out the required distance as de¬ manded by the elevation of the cornice. The brackets, as 0 gives, may be placed as shown. The distances apart to place them are mainly governed by the circumstan ‘,es in th) case wherein they are used. About three or four feet apart will d ) for this case. If a very heavy cornice is placed by this method correspondingly more brackets are needed. The idea is to make the woodwork strong and firm enough to be secure and bear the load wi h a good margin for safety and durability under all conditions. This part of the work done and ready to receive the cornice the same may be put up in sections or the entire structure may be put up in one piece. If the cornice is to be put up in sections, a convenient method would be to make that part embracing the foot molding, beginning at E, also the panel section, dentil course and planceer, ending at F, so that all will be in one section, finished and ready to go on to the building. It i s understood, of course, that Fig. 65 gives only an outline drawing of the cornice. This is done in order to avoid confusion of lines. The parts enumerated may be hoisted up into place, then fastened permanently to the boards on to the face of the wall as shown in Fig. 65. This may be done by nailing the parts to the woodwork at suitable places and intervals wherever the design offers opportunity to do so. The next sections embrace from point F of the fascia band, the crown molding, deck molding and deck—in short the balance of the entire cornice. It will be noticed that from point H to K this part of the cornice is braced. These braces may be used, one every three or four feet apart. The connection at point F is made by the fascia band being cleated to the planceer as shown. The part for the deck is nailed to the sheathing boards as may be required. The foregoing is a cheap way to put up a cornice, but if well done makes a fairly good job. A somewhat better and stronger way is to use wooden lookouts for tin's purpose. These are set into the brickwork, as in Fig. 66. For the cornice under consideration the lookouts may be shaped as the drawing for the foot molding from 1, 2 to 3 gives; the board A (an end view of which is shown), is to be nailed on these lookouts or brackets. All this work must be done smoothly and in line throughout so as to insure a good and even foundation for this section. The lookouts or brackets for the upper sections are to be bricked in as the drawing shows. The shapes of these brackets are to conform to the general outline of the design of the cornice. The boards B and the deck sheathing C are to be made and put in position as the drawings require. At E is shown where, at intervals a piece or block of wood has been bricked into the wall instead of a brick; these are used to nail fast to the wall those parts of the cornice that come in % 60 CORNICE WORK MANUAL contact with them. These pieces are called by some wooden bricks. It will readily be seen that this method offers a solid bed and foundation for the cornice to be fastened to, and is to be recommended where a job of this class is desired to have at once great solidity and a strong bed. With this style of brackets and arrangements the cornice may either be put up in one piece or in sections as desired. In some cases it is necessary to use an out¬ side scaffold as it would be impossible to get at some of the parts without one. In the next article I will give some styles that would be very handy for this cornice. Fig. 67 gives a mode to put up the cornice with iron an¬ chors, braces and wires; in fact making the same fire-proof throughout. There is not a particle of woodwork about the whole construction of the cornice. There are three courses of anchors used as the three letters A, B and C give. The general arrangement of bracing is shown in the figure. The cornice may be got out in the same general manner as described be¬ fore with wooden lookouts. CORNICE WORK MANUAL 61 The section from H to F may first be put up; the anchors in line with A may be bricked into position as also those at B. The lower section may then be placed in position and bolted to the braces of the cornice, as at H and at K. After this is done the brickwork may be carried up to the top, then the upper sections may be hoisted into place and made fast to the an¬ chors as is shown in Fig. 67. The joint at F forms a drip and is bent so as to form a cleat joint on to and over the downward bend of the outer edge of the planceer. This makes a neat finish at this connection. The brace or part of the wrought iron lookout, as shown by the letter 0, to which the planceer is fastened, may be made so as to have a joint, as is given by the drawing at point K, that is, if the cornice is put up in sections. The brace S is placed in the position as shown, to impart rigidity and firmness to the upper deck of the cornice. If the cornice is to be put up in one piece, the 62 CORNICE WORK MANUAL • * m • m ' /V7.S3 main braces, as from C, D, 0, L, R to A, may each be made in one piece and fastened as shown at their two ends at point K. A lug may be fas¬ tened to the braces so that they may be bolted to the anchors, as the de¬ tails are given in Fig. 68; B is the anchor, K is the connection and 0 is a section of one of the main braces. Fig. 69 gives the details of the con¬ nection as described for Fig. 67 at K. The methods so far described that would be suitable for this cornice to obtain the ends aimed at, namely, to brace the cornice sufficiently for strength and durability so that it will re¬ tain its shape when it is placed in its final position on the building, and also the style of lookouts, both for wood and iron as given, need not be consid¬ ered as arbitrary or the only ones that could be used for the purpose. These styles and methods have been given merely to show some good ways by which it may be done. In almost every shop the powers that be have their own peculiar systems in practice, some differing from the system as given in this article. But I may be permitted to suggest that the me¬ thods as presented I consider as equal to any in point of strength, simplicity, ease in putting up the cornice as well as for cheapness. The main aim for work of this class should be to make it as simple in form and shape as is consistent with the use it is to be put to. Make as few bends and turns as possible but so as to conform to the general shape and profile of the de¬ sign of the cornice that they are intended for. These few hints it will be well to bear in mind when laying out work of this class. As to the number of braces to use, as Fig. 65 shows, six will do, two for each end section and two for the 3" projecting center part. In the Figs. 65, 66 and 67 the 3" projecting parts are not shown in order to avoid a multiplicity of lines and to present the drawings in as simple a shape as possible. The braces, lookouts and other particular features for the 3" projecting parts can readi¬ ly be made for these from the profile as given by Fig. 27 of Article V. This makes it unnecessary to give a special drawing for these parts. The pro¬ jecting parts from the foot molding to the planceer, or the brackets, den¬ tils, etc., are shown by dotted lines in the Figs. 65 to 67. In fastening the stays and braces to the galvanized iron surfaces where- ever this may occur, use flat headed bolts or use washers large enough to give the heads a good flat bearing against the iron so as to avoid the tear¬ ing out or drawing through of small bolt heads through the parts that have to bear the strain of holding the cornice in position on the building. The fastenings for the pediment, if it is to have no woodwork, would be to make the braces and stays to conform to its profile and fasten these with bolts to the braces of the cornice, and also to lugs in the rear of the pedi¬ ment on to the wall. It would hardly be necessary to add any wooden CORNICE WORK MANUAL 63 braces into the inside of the pediment even if the wooden lookouts are used for the cornice. In any case the pediment should be braced firmly and strong enough so as to meet any demand that might be imposed on it by windy and severe weather. The rod of the finial could be made long enough so as to pass through the entire structure of the pediment and be fastened to the solid deck of the cornice. If wooden braces are decided on, to be used on the inside of the pediment of this cornice, it would be well to nail a board on to the top of the cornice deck, the same conforming to the general outline of the shape as the bottom section of the pediment has. A flange may or could also be fastened to this board in such a shape and in the exact position which would be demanded for it so that the rod of the finial could be screwed in the same. This would greatly aid in securing additional rigidity to the lower end of the rod. The placing in position of the pediment would be the last operation necessary to finish the entire work connected with this cornice as given by Fig. 25 of Article V. 64 CORNICE WORK MANUAL STAGING AND SCAFFOLDING FOR cornige WORK. xvr. In this article I will give a few of the most handy and serviceable styles of quickly made stagings and scaffolding in use. Some of the spe¬ cial features that should be possessed by appliances of this kind are that they must be strong and trustworthy in every respect. Then thdr cost must be within reasonable bounds, and they should be light and easily handled so that they can be readily erected as wanted, and also that they i*an be removed without too much labor and trouble. In order to meet the demands for safety I favor the us9 of f" bolts for all the main joints and fastenings occurring in the make-up of a first-class scaffolding as used in cornice work. Take, for instance, the style of stagings that are generally used by painters and to some extent by some reckless cornice men. These stagings are usually fastened at the top of the buildings by long iron hooks, often made of such a poor quality of iron as to be practically useless if they are required to support more than the weight of one or, at most, of two men. Then the other way to fasten the ropes and pulleys by means of long planks projecting over the cornice far enough to tie the sustaining ropes to, while the other ends of the planks are held down by pieces of lumber or stones, etc., does not tend very much to make the workmen us¬ ing a make-sliift rig of this kind feel any too safe, or to any extent to ease their minds while putting up cornice work on buildings. Another great fault is the instability of this kind of staging; every movement made by the workmen causes the whole concern to sway back and forth. TLa reasons given above are enough to make almjst any workman willing to forego this doubtful pleasure cf working on a rigging of this kind, and I may add, it is small wonder that many will not do out side work when such contri¬ vances as the foregoing are tendered to them to use. Contrasting the scaffold¬ ing or staging as shown by Fig. 70 with the ordinary swinging scaffold, (he style as given by the Fig. 70 is to be preferred in every way as far as safety, strength and stability are concerned. The supports, as shown by this figure, are of a kind upon which no workman need hesitate to trust himself. The drawing shows the general scheme of this scaffolding so plainly that no very lengthy description of the reasons are necessary to be given why it is built in the style show'n. The timber A is a 2"x6" piece of plank. The pieces B, C, D and E are all 2'' x5". The three boards, X to X, are laid on to E and are used to walk and work upon. The strips of one inch stuff, a9 shown, are nailed to the staging and serve as a ladder to enable the workmen to reach the top parts of the work and also to ascend to the roof should they so desire. F and G are the braces that hold the entire scaffolding to the walls and roofs. As an extra safeguard the fastening as shown by the rope H is here introduced to CORNICE WORK MANUAL 65 show how to arrange the same in case such extra help is deemed necessary. The eye-bolt shown in the figure should be made good and strong so as to be reliable in all cases. It will be noticed that all the main fastenings are bolted together. For this purpose I would always advise the use of heavy bolts, net lighter than in any case. My reason for advising the use of bolts in preference to nails, etc., is that when the scaffolding is out of use the bolts can be taken out and the scaffolding packed away in a compact form,which would not be possible if the joints had all been nailed together. In the latter case, in the attempt to take them apart, the probabilities are that the timbers of which the scaffolding is composed would all be more or less damaged. One point to be borne in mind when designing a set of scaffolding of the general kind as Fig..70 gives, is to have all the main sup¬ ports of the right length. Take, for instance, the brace E of the figure. It will be noticed that the end of this brace rests against the front of the wall, holding the entire structure in an upright position and the horizontal parts level. If this timber is either a little too long or too short it is at once apparent that the whole structure will be out of plumb, thereby the strain on all the parts are out of proportion to that which they are intended to bear. The idea is to have all the parts just right; a careful study of the peculiarities of the staging as shown in Fig. 70 is recommended. I may add that I have used scaffolding of this kind on some of the loftiest build- 66 CORNICE WORK MANUAL ings in the country and have always found them superior to any other style that has ever come to my notice. The staging as shown by Fig. 71 is one of a variety of styles used on very high buildings and generally when one or more stories are added to a building already erected, and in some cases even before it has ever been contemplated that any more stories would be added to the structure. It will be seen upon close, inspection that this style of staging does not in the least interfere with the occupancy of the story im¬ mediately underneath the same, and for this reason it is a special favor¬ ite with many builders and cornice men. Each one of these brackets is composed of three pieces. The timber A and also the piece B may be made out of a 2"x6" piece. C may be made of lighter stuff; a piece lj"x5" will do for this brace. This style bracket may be bolted together, but as it is more the custom to nail the parts of this kind of bracket together this may be done. As the dimensions CORNICE WORK MANUAL 6? and measurements for each particular job are almost invariably different from any other it is obvious that it is not necessary to be too particular in trying to save the material for another job. The flooring and the front guard of this kind of scaffolding is all plainly shown in the drawing. This particular style of staging is generally used by cornice workers where the added story of a building has a galvanized iron or copper front, and on buildings that are occupied by tenants during the time that the work is go¬ ing on. Fig. 72 shows a style of bracket that is generally used where the story from which the scaffold is built may be utilized for this purpose. The main upright timber of this bracket is made of 2"x6" material, and is placed on the inside of the building resting on the floor on its lower end, and braced or cleated to the same to prevent its slipping inwardly. A small block, nailed to the floor as shown, is generally all that is necessary to ac¬ complish this purpose. The horizontal piece A is bolted to the upright, as is also the piece B; this is shown in the drawing. The brace C is placed in its relative position to prevent the upper part from giving way toward the inside of the house; this brace also makes the bracket stiff and unyielding. In no style of scaffolding are the good points of bolting the main parts together so apparent as in this kind. It will be noticed that in the main parts of this bracket there are a number of holes for bolts in each piece so that this bracket can very readily be adjusted to almost any case or condition that may come up in ordinary work. The flooring for this scaffold is plainly shown in the drawing, as are also a number of pieces that are nailed to the upright, and to the piece B, to be used as a ladder for the men to ascend or descend as may be required dur¬ ing the progress of the work. Fig. 73 shows a double scaffold often made use of in putting up galvanized iron fronts, etc. As the drawing shows, all the main timbers are. bolted together and are made so that they can be adjusted so as to fit almost any case. The flooring for both the upper and lower staging is all plainly shown. The braces are so plainly given that no amount of description could add to a clearer understanding of the draw¬ ing as given by Fig. 73. The strips that serve for a ladder in the upper section of the scaffolding may be nailed to the pieces as shown. The four varieties of stagings and scaffolding as given by Figs. 70 to 73 are exam¬ ples of what may be considered the best practice for cornice work generally These styles, with a little variation from the shapes as given, may be adapted to nearly any case that is liable to come up in practical work as far as the putting up of cornices is concerned. The workman, in case he had to put up a cornice of the class as the Fig. 25 of Article V gives an example of, will find an ample variety of staging among the drawings to select? from. A word on the proper care and preservation of tools and appliances as 68 CORNICE WORK MANUAL used on outside work. The pieces and parts of scaffolding should be made of good sound timber and if of interchangeable and adjustable kinds of scaffold¬ ing, they should be planed and painted. This adds greatly to the length of time that the wood will remain in good condition and fit for hard service. When the scaffolding is not in use, have it carefully stored away under shelter in a dry place. Have system enough in storing the same away that any piece whenever wanted can readily he found. Have all ropes, tackle, etc., in their proper place. In order to he able to do this a place must be provided for everything. Have pegs or hooks fixed so that each coil of rope can be hung up. See that this is done at once when they are brought back from any job. A few minutes devoted to neatly coiling a lot of ropes and properly hanging them up in their proper places when they are first brought in from a job will often save hours of vexatious unraveling of a lot of tangled and carelessly piled up ropes and tackle, which is often the case where no order or system is followed in taking care of these tools and appliances while they are not in use. CORNICE WORK MANUAL 69 XVH. 01^AmE]SlT STRCClPlfiO mACpifiE. In the preceding Articles, a complete exposition of the details entering into the entire work embraced in all branches required to complete a cor¬ nice as given by the Figs. 25, 26 and 27, of Article V, has been given. To be more precise and minute, the work as described commenced with detailed instructions, giving full explanations how to read and measure up the drawings as submitted to the student, thus enabling him to ascertain 70 CORNICE WORK MANUAL the entire amount of iron, etc., contained in and required for this cornice. Following the foregoing it has been shown how to figure the weight and also how long it would require to construct this cornice according to the best practice, this supplemented by all necessary tables and rules. This gave the preliminary office work or estimating part of this cornice. The next step described was to arrange the drawings so that when the parts were laid and cut out of the iron, this could be done with the least possible waste of material. Then followed the entire modus operandi necessary to obtain all the patterns, tem-plates, etc., of all the miters and connections; in fact it gave and showed how to lay out every inch of iron m the entire struc¬ ture,from the foot molding to the top spear head of the finial. Following this various modes and ways were given to join these pieces together either in sections or in the whole; and finally it was shown how to brace, and vari¬ ous ways were given to fasten the cornice to the building. It may have been noticed that for the ornamental part of the work reference has fre¬ quently been made to stamped zinc or iron ornaments used on this cornice. These are generally bought from dealers throughout the country. It fre¬ quently happens that special designs not to be found in the catalogues or kept in stock by dealers are wanted and insisted upon to be used by stub¬ born or perverse architects. This makes it imperative that the desired pat¬ tern or design be used by the cornice*maker. If he has to write to the manufacturer and the latter in turn has to get out the required dies and de¬ signs, it is easily seen that this entails a considerable cost to the party who is getting out the cornice in question, not considering the loss of time and possible delay in getting the goods when wanted. To avoid some of the foregoing vexatious delays and heavy expenses, and to show an easy and cheap way for every cornice maker to provide himself for his shop a cheap, simple and easily made machine for the purpose of getting out this work the designs, as Figs. 74 to 76 show, have been prepared to meet this want. This machine has proven itself to do the work most satisfactorily in a good maDy shops and has this to recommend it—that it does not require much room to place it in position and can be constructed by almost any mechanic of ordinary ability. Fig. 74 gives the front elevation or view; Fig. 75 gives the side and Fig. 76 the plan. The first thing to get is a block of wood about 18" square, or round for that matter, if so desired. This may be of a height as suits the party getting up the machine. If it is desired to put it on the floor of the shop, for the foundation I would suggest to make the block from 18" to 24" high; this gives the most convenient height for work. Next take a piece of hardwood plank about 8" thick by 8'long and 18" wide, as the drawing gives. This is to be fastened securely to the block as shown. Have these parts perfectly square and true every way. This gives CORNICE WORK MANUAL 71 the wood-work for the foundations and bed of the machine. The upper parts are usually made of steam or gas pipe. Select two well-joined and smooth pieces of 1^ pipe; these are to be of the length as required from the bottom of the 3 plank, allowing for space for a lock nut fRnge, as shown at 1, 1 , of Rig. 74, up to the ceiling at 2, 2' of the same figure- In this case it is supposed that the upright guides are secured at their upper ends at the ceiling. Where it is not practicable to do so, a suitable bracket may be rigged up to answer this purpose. Make the center pipe or main lift and drop guide of the length as given from 3a to 4a of Fig. 74. 72 CORNICE WORK MANUAL Thread it up or down far enough so that the cross tees can be secured into their respective positions, as shown at 5 and 6. The four three way tees as X, X' and 0, 0' show, are to be screwed to cross-pieces of pipes as shown, but those parts of the tees that are to slide up and down on the guide-posts are to be filed and fitted so that they are a nice fit, not too loose nor too tight, so that they keep the center plunger in its exact required position at all times. This done, provide a cap at the upper end of the center pipe with a ring attached to it, as shown at 8a of Fig. 74. At the lower end secure a flange, as shown at C; note a flange of this sort is required for each male die made for stamping; this will be more fully explained further on. The various pieces as described in the foregoing are to be got out and joined together as the drawing shows. The flanges at the ends of the uprights are then screwed on as shown in the drawing. Each piece must be cut and threaded so as to be just right and when put together as directed a machine as the front elevation, Fig. 74, shows is the result. Referring to the Fig. 75, the manner in which the lever with which the drop is operated is secured, is shown by the hook at the end of the same. This hook fits into the ring shown at the upper end of the center at 8a of Fig. 74. At S of Fig. 75 is shown how the lever is secured to obtain the lift to raise the plunger; this rod is fastened at its other end at any convenient point, so as to obtain the proper leverage as may be desired f according to how much drop it is desired the machine should have. This lever can also be so arranged that it can be pressed down when the first operation on the impression is commenced between the dies on the ma¬ terial, and then, by simply shifting the lever to another hook, the machine can be changed to a drop press. Fig. 76 gives the plan, showing the proper relative positions of the parts from that point of view. The foregoing gives all the particulars entering into the construction of the machine; the next item to be considered is how to make the dies, both male and female, or the top and bottom dies, and also how to secure them in their proper positions. A good way to secure this last object is to make a pattern and have a bed-plate cast, as Figs. 74 and 75 show at K and at K'. Having determined on the size wanted, have it made and fasten it to the 3" plank, as shown in Fig. 74. It will be noticed that there are four lugs, one at each side on the bed-plate; through each one of these a set-screw passes, which, when all four set-screws are screwed up tightly, secures the bottom die firmly in its proper place, as required. These set-screws, being of the proper length, can be adjusted so that any size die may be used as the occasion or the work may demand. CORNICE WORK MANUAL 73 The dies, as a matter of course, can not be any larger than the bed-plate can accommodate. The last and at the same time one of the most im¬ portant oparat ons is that of making the dies. One of the cheapest ways of accomplishing this result is to take an ornament which it is desired to duplicate and make a box of the size it is desired the outside of the die to be. Take a clear cut, or in other words, a well stamped figure, And place this in such a position as is required for the female die; tack or solder this to the top edges of the box made for the same. Turn this box upside down and fill it full of plaster of Paris. (The form or shape of this box must be made so that the set plaster cast will readily come out of the mold.) When 74 CORNICE WORK MANUAL this has hardened, have a cast-iron die cast from it. The cost of this bot¬ tom die will be about 2L cents per pound. One point to be followed in having work of this kind done is to have it done by a firm that has the proper talent, or in other words, one that employs mechanics capable of doing good, smooth work, and also one that uses good iron from which to make the easting. Having obtained the bottom die, file and finish the same perfectly smooth and clean. Then place the bottom die in its proper posi¬ tion on the bed plate and screw it up tightly in the machine. Make a rim as high as it is desired to have the male die when done. This rim is to fit tightly on or over the bottom die. Next screw a flange, as shown in the drawing, to the lower end of the plunger, as C gives. This is let down into position as demanded by the drawings. Now, in order to get the cor¬ rect shape and form of the male die, lay the ornament or figure from which the bottom die has been cast into the same. Be careful to have the side of the ornament which will be exposed to the hot metal smoked, that is, pre¬ pared so that it will not solder or stick fast to the die when the same cools and is completed. When the male die is finished and hardened, raise the plunger and unscrew the die from the lower end of the same. This can easily be done by reason of the way the flange is fastened in the die. This method of fastening also enables the workman to very readily change from one set of dies to another without much bother. The upper or male di'e may be cast from a composition of lead and zinc, as lead alone would be too soft. Where permanent dies are desired, I would advise to have them made of cast iron, but the composition dies do fairly well for several hun¬ dred impressions, when iron is used for the material from which the orna¬ ments are made. In ca3e sheet zinc is used, th) material must be heated so as to render it pliable and not to expose it to the danger of cracking and breaking during the process of forming it to shape between the dies of the machine. The necessity for heating the zinc sheets is readily seen by any one who has even a casual knowledge of the brittle nature of this material, and its great liability to break and crack when b .nt from its flat state in the CORNICE WORK MANUAL 75 sheets, in which it is commonly used. J may also add that a composition die as described may answer for as high as a thousand impressions, when the material from which the ornaments are made is sheet zinc, properly heated and prepared. In case a special design is wanted, hammer out the shape as desired, and in case a great many ornaments of the same kind and design are required, follow the way which has been given to make the dies as wanted. Although the above described machine may not be the ideal or most perfect one that could be designed for the end sought, I nevertheless consider it a Very good one, and about as cheap a machine as could be made, being at the same time a strong tool and capable of doing good work. The operation of stamping the ornaments is as follows: Place the plate on the bottom die, raise the male or plunger die by means of the lever to the proper extent, as allowed by the machine; then let the plunger diop. Repeat this several times, until the perfee* impression is obtained. Trim all frayed edges from the ornament. The latter is then ready to be used for the purpose for which it is intended. XVIII. THE MAHAGEmEHT OF 1ROPES #H£> HOISTIHG TACKLE. In this article I will give some of the most used methods of tying knots, the making of fastenings, some general hints for the preservation of ropes, etc., how splices are made, in short, will give some much-needed information to cornice men on these subjects. This will be of benefit in particular to those who have much outside work to do, as in connection with this branch there is always more or less use for ropes, tackling, and the general management of hoisting work into place and position on a job. It has been my experience with most workmen whom I have come in contact with who were connected with the outside branch of cornice-work, that the greater number of them have but a very limited knowledge on this subject, many not even having the ability to tie some of the most simple knots, or to make fast the end of a rope by a simple hitch. A careful study of this article and the figures shown is reoommmended to the student. I believe that even those who have some knowledge of the matter here presented, as well as those who have but a casual acquaintance with this important and useful branch, will be benefited by thoroughly understanding and making themselves masters of the instructions here given, which will materially add to their efficiency as workmen. Evidences of the lack of knowledge on this subject are met with in. our trade on every hand, but chiefly in the expense 76 CORNICE WORK MANUAL account of firms who have men working for them who sometimes waste valuable time by the bungling way that they go about doing some of the simplest jobs of getting material and stock to the places on buildings where it is desired to do the work. Men often climb ladders, carrying up with them heavy loads, with great discomfort to themselves and much hard work, when the same end could be attained (with time saved and the v, ork- men not all tired-out, whieh follows the disagreeable and heavy lugging that they have undergone) with ease and comfort to themselves, had they known in the first place how to arrange some simple hoisting rig to hoist the material to the roof. Numerous other instances could be cited, but this will suffice to show that the main idea should be to get the work in place, and that as quickly and easily as possible, in the least expensive manner that the ingenuity of the workmen will permit. A reasonably good under standing of the subject presented here will greatly aid in the accomplish¬ ment of this object. Fig. 78 It is often the case that ropes become worn or damaged from some CORNICE WORK MANUAL 77 cau- e or other; ends of ropes are cut off square, but for some reason, or from neglect, they are not properly tied so that they will not fray or un¬ ravel at the ends. Fig. 77 shows several methods to prevent this unneces¬ sary waste. The figure 1 of Fig. 77 shows a common tie for a rope; the end at A is in some cases cut off square at this point. A cheap way, but not as durable a way as the mode 2, which is the same as 1, but that the ends instead of being cut off are tied together forming loops, laying one over the other. Another method to accomplish the same purpose is to interlace the ends together; 3 shows the rope ready to make the end by interlacing the strands. The figure 4 shows the manner in which this is done, but the strands are not drawn up tightly, in order to better illustrated the manner in which this operation is accomplished; 5 shows the ends drawn up tightly and the interlacing complete. Cut off the ends left and as good an end is the result as could possibly be made; 6 shows how the interlacing is commenced in one direction; 7 shows the interlacing in two directions; 8 shows howto finish the interlacing by the ends being worked under the strands, as in splicing. If it is desired to unite two ends of a rope together, or, as commonly termed, to make a splice, prepare the ends of the rope as shown by 1 of Fig. 78; put the ends of the ropes together as closely as possible; place the ends of one between the strands of the other, above and beljw alternately; so as to interlace them. This is a quick method to make a short splice. The process of making a long splice is as follows: Unlay the s'rands of each of the ends of the ropes it is intended to join for about half of tbe length that the splice will be, putting each strand of the one between two strands of the other. 2 shows the strands arranged as described; reduce the strands toward their ends so that they lose themselves in the body of the splice at their ends. To make a splice for a rope that has been worn so that a part of ithau to be cut out and the ends spliced together again, the following mode is 78 CORNICE WORK MANUAL followed, which makes the rope as strong at this splice as it has ever been. This is shown by 8 of Fig. 78-: This shows two strands, a and b } of the ropes A B, knotted together, being drawn as tight as possible; unlay the strand a', of the rope, A, for half the length of the splice, and twist the strand, b', of the rope, B, strongly in its place, tying a and b' together tightly. The same process is again gone through on the rope, B, the strand, Fig. 80 a ", of the rope, A, being knotted to the strand, b ", of the rope, B. When all the strands are thus knotted together, interlace them with the strands of the rope. Thus the strands, a a' a ", are interlocked, by being passed alternately above and below the turns of the cord, B, the ends being also sometimes “whipped.” In the same manner the strands b b' b" } pass alternately over and under the strands of the rope, A, and are in like man¬ ner “whipped.” It is important that the several interlacings and knots should not meet at one point; reduce the size of the strands toward the end, so tli t they lose themselves in the body of the splice, cutting off such parts as may project. The foregoing will give a very fair idea how splices are made. To obtain the required proficiency to make a neat and well- CORNICE WORK MANUAL 79 made splice requires some practice. The above will give the student a fair start on this subject. It is also a good idea when one is making a splice to provide one s self with a tool in the shape of a marlin-spike, with which to open out the strands of a rope in order to pass the strands of another through or under them. Of the many knots and fastenings I will give some examples in the Figs. 79 and 80. Fig. 79, 1 shows a common over-handed knot; 2 shows what is called the figure-eight knot; 4 is a common bend, joining together two ropes and leaving four ends to the same; 3 shows how the common square or reef-knot is arranged. In Fig. 80 is shown by 1 an ordinary knot upon a double rope, and 2 presents the same knot somewhat differently arranged; 3 is a chain-knot or fastening on a rope, and 4 gives simple fas¬ tenings or knots on the same; 5 is a simple slip-clinch, and 6 shows a bowline knot. 7 presents what is termed a slip-clinch to a sailor’s knot, while 8 shows a slip-clinch secured, and 9 an eye-splice. The strands of this rope are brought back over themselves, and interlaced with the origi¬ nal turns, as in a splice. 10 is a knot for binding timbers; A shows how 80 CORNICE WORK MANUAL to start this knot. Severturns should be taken around the timbers, then fasten the ends by passing them under the turns; 6, knot completed. The end of a round stick, m n , termed a packing stick, should be passed under the knot, the cord being slack enough to allow of this. By turning the stick, the turns can be tightened to any extent; when tight, fasten the longer arm of the lever to some fixed point, by a rope, p q , so that it cannot fly back. Care must be taken not to turn the stick too far, or the rope may be broken. 2 Pig. 84 In Fig. 81 are shown several loops used to slip lines through; these are often made use of in emergencies. In many instances it is of much importance that the workman be able to tie together and fasten timbers fast to each other. Some examples are shown in Fig. 82; 1 of this figure shows a fastening to shears; 2 shows a double chain fastening; 3 shows a square mooring. The rope is around the post, A, and the piece, B, without being crossed; the ends are fastened by tying. 4 shows a crossed fasten¬ ing, the ends being drawn up and knotted tight. Figures 83 and 84 show some handy ways to make fast the ends of ropes. In Fig. 83 is shown by 1 a loop with the end whipped or tied to the rope; 2 of this figure shows a fastening by a loop. This can be tied or untied without loosening the loop itself. It is made by following toward the longer loop the direction as numbered 1, 2, 3, 4, 5, and is terminated by the loop, 6, 7, 6, finally passing it over the head of the post, A. This knot holds itself, the turns being in opposite directions. To untie it, slack the turns of the rope suffi¬ ciently to again pass the loop, 6, 7, 6, over the post, A, and turn the ends 81 CORNICE WORK MANUAL in the contrary direction to that in which they were made (as 5, 4, 3, 2, 1). 3 shows a very neat fastening. It is simple to make,and therefore a favorite tie for the purpose with many workmen. In Fig. 84 the waterman’s knot is shown by 1; by 2 is given a very effective fastening, while 3 is a fas¬ tening tied to a pin; the rope being fixed by a cross tie. The following fastenings are also much used: Fig. 85 at 1 shows the half-hitch, 2 i-s called a timber hitch, while 3 is the common clove hitch. In Fig. 86 are 82 CORNICE WORK MANUAL shown by 1, a combination of the half-hitch and timber hitch; 2 shows the common and much-used bale sling. Fig. 87 at 1 shows the hammock hitch; at 2 the ordinary cask sling, and 8 shows the butt sling, on end. This is a good mode to secure a keg in order to hoist it. Fig. 88 presents some of the most-used pulley and tackle blocks. 1 is a snatch block. These blocks are so arranged that the rope can be placed on the pulley-wlieel without passing the end through the eye, but is so arranged that a side lock can be opened and the rope laid on the wheel at any time, th lock being closed again the pulley is ready to work with; 2 shows the common rope strapped block, often used fora single whip; 8 and 4 are a set of single and double pulley blocks; 5 is a much-used single pul¬ ley wheel, it being a universal favorite with roofers, especially for light hoisting. In the opinion of the writer the foregoing gives nearly everything that it is necessary for a thorough understanding of the subject, as far as any information on this branch is of practical benefit to the cornice man. It will be noticed that in some of the explanations of the figures, no veiy lengthy preamble nor detailed description has been given. This I deemed unnecessary, as in most of the figures the positions and what it is intended to convey, the drawings show so plainly that no amount of description The following tables will be found useful to the cornice trade as they give the weights and the safe load to be intrusted to the various sizes of ropes: TABLE OF SAFE LOAD FOR COMMON ROPES TO BEAR. (HASWELL.) Diameter. Circumference. Safe Load. Diameter. Circumference. Safe Load. .25" .78" 425 tbs. .75" 2.375" 4,400 lbs. .3125" 1.00" 690 “ .875" 2.625" 6.150 “ .375" 1.25" 825 “ 1.00" 3.00" 8 400 “ .500" 1.375" 1,600 “ 1.25" 3.75" 13,400 “ .5625" 1.75" 2 800 “ 1.5" 4.625" 20,160 “ .6875" 2.125" 3,800 “ 1.625" 5." 24,600 “ CORNICE WORK MANUAL 83 The foregoing gives a fair average for the safe load to trust to ordinarily good manilla ropes. This may be taken as 10% higher and stronger than sisal rope can bear. In weight, the difference between the two kinds of rope is from 5 to 10%, if both kinds are reasonably dry. Some dealers have the knack of making the weight of the two ropes so nearly alike that there is practically no difference between the two; that is, taking a given length of both kinds, both being the same in length and also in diameter still both are alike in weight. This ingenious trick is done by storing the moisture-absorbing sisal rope in a damp or wet cellar. The lighter sisal rope possesses the, to the dealer very profitable, peculiarity of absorbing enough aqua to render it equal and in some cases even heavier than an equal amount of manilla rope would weigh, even if the same were stored in the same place with the sisal. It therefore behooves the careful buyer to insist on getting his goods dry. The cost of common sisal rope is from 9 to 12 cents a pound while manilla sells from 12 to 16 cents a pound, accord¬ ing to who buys and also, in many cases, from whom it is bought. My advice is to buy the better grade, namely, manilla rope, as the lasting qualities as compared between the two kinds is fully one-third in favor of the better grade. PLAN AND DETAILS OF A GABLE AflD HORIZONTAL CORNICE. XIX. . In this article is shown by Fig. 89 a front elevation of a 28' front. The drawing shows part of the sections to be horizontal cornices, whils near the center is shown a gable cornice surmounted by a ridge coping and a finial with an arrow weather-vane. This view also shows the front of a fancy dormer window with a finial, extended out from the slate-covered mansard roof of the attic. At each end is shown a raised paneled coping capped by head blocks. At the upper edge of the roof is shown the crown- deck or cresting cornice, capped by a cresting. This entire design is drawn to the scale of a to the foot. Fig. 90 gives a left-hand sectional view of Fig. 89, showing the relative position of the ridge cresting or coping of the gable, also the positions which the finials have on the building viewed from this point. The section of the horizontal cornice and also the posi- 84 CORNICE WORK MANUAL tion of the ornamental turrets which are located at the junction of the horizontal cornice and at the base of the gable cornice, are also shown. Fig. 91 gives a section of the front viewed from the right-hand side of the building. This section gives the side elevation of the dormer window, the gable and a full outline of both ridge crestings as well as the positions of the finials, head blocks, horizontal cornice and ornamental turrets, etc. The foregoing is supplemented by the plan view of the entire cor¬ nice in Fig. 92. The plan view, as will*be noticed, gives the correct loca¬ tion of each particular item that is shown in the drawings of the front and side elevations of this cornice. It will also be observed that the drawings are, in the main, different from those shown in the design as given in Arti¬ cle V, by Figs. 25, 26 and 27. Although being the plans of a building of CORNICE WORK MANUAL 85 the same general class, the designs as Figs. 89 to 92 give, show som) moldings and miters that are not made use of at all in the former. Just what points of difference there are and where they occur, will be seen far¬ ther on. It is customary with most architects to furnish drawings, drawn to the scale of one-quarter of an inch to the foot, as all the figures from 89 to 92 show. But it is seldom that as complete a set as I have submitted in this in¬ stance is furnished. Most architects only give a front elevation and one section or side view, for the cornice man to figure upon and for him (if he secures the contract to build the cornice), to deduct his working drawings from. But in order to give the student every reasonable aid so as to enable him more readily to understand every detail of the design submitted, the two extra views—the plan and one section or side view—have also been given. To give the student a more comprehensive idea how the actual busi¬ ness of the preliminary stages of the figuring and the methods by which the first data are generally obtained for this branch of the work^ i have 86 CORNICE WORK MANUAL given in connection with the general description of this cornice, a form of specification, usually made use of by architects when submitting a set of drawings to be figured from. The specifications serve to inform the cor¬ nice man of all the details, in connection with and pertaining to the work under consideration. The drawings and the printed or written form of specifications are what he is to go by and also to which he is held after the contract is made and signed by him. This being the case, it stands to reason that the best plan to follow before entering into any definite agree¬ ment is to carefully read and stu ly the exact wording, the meaning, direct or implied, of every point noted in the specifications that he is figuring on, so that in case of a dispute he thoroughly understands the wording of the same. In the form of specification that I present in connection with this cornice and the other work which is done by most cornice-making firms I have omitted to give any very precise or elaborate conditions in connec¬ tion with the design submitted in this article, my aim being to give the student a good insight into the general business methods and also to pre¬ sent a form of a complete specification usually made use of by architects in connection with the cornice-maker’s branch of work on a. building. Specifications are generally in the style as given and are in printed form, the spaces left blank being for any additional on more specific designation of any particular part of the work it is desired by the architect to describe more fully. There is also to unst specifications an iron-clad condition affixed (not shown iu the form given), that covers all classes of work des¬ cribed in it, which it will be well for the cornice man to note and make provisions for in his calculations. Whatever this general condition may be, note the same. The following is the priated form usually used for this part of the work about a building: CORNICE WORK MANUAL 87 SPECIFICATIONS OF TIN, GALVANIZED IRON, SLATE AND COPPER WORK. GALVANIZED Ikon CORNICE, Etc. The contractor will provide and fix all cornices, moulds, dormer windows, etc., as per elevations and details, together with brackets, modillions, ornaments, etc., all of No. 26 and 27 iron, substantially riveted and sol¬ dered, firmly b.aced every 4 to 6 feet, as directed, with 3-16xli-inch strong wrought- iron stays, holding all profiles and forms in proper shape, the whole firmly put up and fixed to the building in a workmanlike manner. CONDUCTORS- The conductors in the rear to be of-caliber, made of No. 24- iron, extending from the hanging gutter or head to the sewer, properly secured to but not against the wall of building or porch posts, by strong galvanized iron clasp- hooks, placed every 8 feet. Pipes to have all necessary curves, bends, etc., to be flanged over sewer-pipe openings, or if discharging on to the ground surface, to be provided with 16-inch shoes at the bottom, conveying the water from the building. All pipes to be lapped, properly seamed, soldered, and-put in place as soon as the roof is on, to protect the wall from damage. Ornamental Conductors and Heads to be made of No. 26 iron and zinc, as per elevations and details. GUTTERS. Put up hanging gutters in the rear of the building-x-in size made of No, 24 iron, flashed back under roof covering, not less than 4 inches, having a fall to the conductor pipe of not less than 2 inches in every 25 feet, and all properly se¬ cured in place with strong gutter hooks on the under side; the gutter to have strong water-drip on the outer edge, formed by the strengthening wire, and to be so placed that the gutter rim will be at least 1 inch below the top of roofing where dripping to the gutter. METALLIC SKYLIGHTS. Put up.skylights, where indicated by plans, of sizes marked thereon, the same to be glazed with heavy ribbed glass, provided with proper iron strengthening bars, of dimensions in proper proportions to the size of the light, or as directed; putty joints of glass with iron, to have iron water-shed covers. Properly fix condensation gutters for each light, the same extending out and empty¬ ing on the roof, and furnish movable ventilators in center of lights-x-in size. all to be made water-tight. Skylight to be put up as soon as the roof is on. The contractor will be held responsible for all damage occurring to the building from neglect of this part of his work . 88 CORNICE WORK MANUAL Cresting. Galvanized Iron Sheeting. On windows,.to be moulded, paneled and ornamented as shown by drawings and put up in proper manner with one thickness of heavy tar paper between the same and the wood work, all well lapped at joints.... PRESSED AND Oast Zing. The ornamental forms of cornice work, etc., to be of pressed zinc, of designs shown by elevations and details. Copper Work. TINNING. The plank coping of fire walls (where the same is used), the exposed woodwork of cornices, skylights, scuttle-covers and curbs, storm-house roofs, balco" nies, porches and bay window roofs, inside of gutters, hips, valleys and other exposed woodwork not otherwise provided for to be covered under slate, shingles, composi¬ tion (or other roof covering), to be covered with best quality of. Roofing, tin securely seamed, fastened and soldered, and otherwise made water-tight. Run tin up underneath shingles or slate, to provide well against back-water leaks; furnish the carpenter or mason, as work progresses, all required tin flashings, same material as roofs, and of suitable sizes, for the proper flashing of all outside work, or shingles, slate, etc., to make properly tight over all openings and projections in wall or roof surfaces; examine work carefully, and stop all leaks after other craftsmen, on completion of building. All tin-work and flashings to have two good coats of metallic paint on the under side before being laid; also on top, on such portions as other work will cover up. Slating .The roof of and other surfaces so indicated by the plans, to be covered with best unfading, sound.. ..slat©-x-in size-laid- to the weather, all nails to be covered in the lapping. The slates to be properly drilled and trimmed, each slate to be nailed with 4d. galvanized nails; cut at hips, valleys, eaves and heading courses to make uniform bond, also ornamental bands as CORNICE WORK MANUAL 89 hereafter, all hips to be mitred and with top courses, under ridge covering, also head¬ ers, firmly bedded in slaters’ cement. provide ornamental courses of FELTING of medium tarred paper will be provided, carefully stretched, lapped 2-ply and tacked on, previous to, and on all surfaces to be slated. FLASHING* Do all step and other flashing as required during progress of work, around all pipes, chimneys, dormers, scuttles, skylights, walls and all other places, to make the whole perfectly water-tight, with tin as above specified, painted as other tin work, of sufficient width, etc., secured into joints of brick or to other work, capped, bedded and pointed with slaters’ cement. At completion of building, exam' ine work, etc., etc. (see tinning), and warrant all in good and perfect repair for a period of one year from time of completion. . N. B.—Where copper is specified for flashing, etc., the above specifications will apply to its use and forms the same as it now does to tin and iron work where copper gutter linings are used in connection with galvanized iron mouldings, the jammings must be seamed and then soldered. All copper used throughout the work to be 14 oz. in weight. In the foregoing printed form there are some items which have no connection or bearing on a job as shown in the designs from Figs. 89 to 92. The main object in giving the form is to make the student familiar with*what occurs in actual every-day work. We will assume that the pre¬ liminary office work has been done as far as the reading of the plans and specifications is concerned. The measuring up of this work would now be in order, or, in other words, the design as submitted to be transposed into detail and working drawings, and the same to be measured up so as to ascertain just how much material it will take to complete the entire work so far as the cornice, dormer window, coping and cresting are concerned. In most drawings the full-size dimensions are shown in figures, even if the architect has prepared the drawings to a larger scale as in the design of Fig. 89. In this case I have not followed this plan, as I believe the earnest student finds a far more instructive study in this design by taking bis rule or scale, and when working out a problem as Fig. 89 gives, measuring and then transposing the distances as found to another drawing rather than having all this done for him. The idea is that the more he practices the more proficient he becomes, and as a consequence the more pains he takes the more accurate the results will be in this branch of his work. I have only deemed it necessary to give a few general dimensions of the entire cornice, and also the profile of each of the various sections of the cornice moldings; these are all drawn to the scale of 1" to the foot, and are all shown in Fig. 93. I may here remark that in actual practice, or in every- 90 CORNICE WORK MANUAL day work, it is important that when an architect submits plans and draw, ings for work they are, as a general rule, marked with full-size dimensions in plain figures. It is easily seen how important this is that they are so marked. I will say, for instance, if a drawing is drawn to a scale of to the foot, the student must remember that when he lays his rule or scale on the drawing that each one-eighth of an inch on his rule represents one foot of the actual size of the object which the drawing presents. It is thus an easy matter to make mistakes, even the width of a line on the drawing being wider than one-twelftli of one-eighth of an inch on a rule or scale is, hence the importance and necessity that the drawings be marked with full-size dimensions. This is a point that must be looked after, and ought to be in¬ sisted on by the cornice*man that the architect attends to it that the draw¬ ings are so marked. This will avoid all confusion and greatly facilitate the ready measuring, figuring and getting out of the work in every detail; in fact, will leave no excuse for blunders and give satisfaction to every one, concerned. I will now show how to measure up this design. The first sections will be the hor'zontal cornice parks which I will take under con¬ sideration. No. 5 of Fig. 93 shows the profile for these parts. The stretch¬ out of this profile measures from the foot molding at the extreme end from A to the crown molding at A', 33". This gives the amount of surface for the sections A and B of Fig. 89 from top to the bottom of each, or the vertical stretch-out of the same. The horizontal stretch-out of section A is 11'6"; for section B it is 2'3". This gives 11' 6"-f2'3" 13'9"x33"=37 sq. ft. and 117 sq. in., or say 38 sq. ft. The two sections, which are at right angles to A and B, are also horizontal moldings. The profiles of the same are shown by 6 of Fig. 93. The stretch-out of each of these parts is from the extreme end at the bottom to the top 28". The length of each section horizontally is 2'. This makes the surface for these sections 2'_|_2 'n=4' x28 =9 sq. ft. and 48 sq. in., or in the rough 9i sq. ft. of iron. The stretch- CORNICE WORK MANUAL 91 out of the gable moldings measures 26" for each side; the extreme length of each side is 11". This makes the amount of iron for both moldings 11' x2=22' x26"=47 sq. ft. and 96 sq. in., or 47J sq. ft. for this part. The profile No. 7 is the one for the gable section; No. 4 is the profile of the crest or deck molding; both of these profiles are shown in Fig. 93. The stretch-out of the deck molding measures 13" and the length of this molding is 26' 3". This multiplied by 13" makes 28 sq. ft. and 63 sq. in. or in the rough, 28J- sq. ft. of iron. The quantity of iron that it will take for the copings at each end of the main wall of the man¬ sard roof is 25" wide and 7' long for each, making 14' x 25" = 29 sq. ft. and 24 sq. in. for these two pieces, or say 29^ sq. ft. of iron all together. The quantity of iron for the head-blocks is 5 sq. ft. for the square part of each one and 3 sq. ft. for the pendant moldings of each block, and also one square foot for the circular support of each ball on each block or truss. This makes the total for both head-blocks 18 sq. ft. of iron. The cresting, as shown, is to be 1" square, making the stretch'out 4" by 26' and one foot for each post, making 17 ft. more. This makes the quantity of material in this part of the work 26' 4- 17'= 43' -f- 4" = 14J- sq. ft. To measure the dormer window, take all the flat surfaces first; aver¬ age the front 4' wide and 5' 6" wide, making 4' x 5' 6'' = 22 sq. ft. of iron. For the sides, measure the flat part immediately under the horizon¬ tal cornice, which is 2', then down to the lowest point of the side of the dormer, which is 4'. Now, as each side has but half of this surface, the figures as given answer for the full amount of surface contained in both of the sides, or, in other words, as the sides are each in the shape of a tri- . angle, and as they are both of the same area, they may both be figured, after being added together, as a square, or, to be more precise, as a parallelogram or as a rectangle, hence 2 x 4 = 8 sq. ft. is the amount of the area of the surface of both sides of the dormer window. The pro¬ files 1 and 2 of Fig. 93, give the stretch-out for the moldings for this window, which averaged measures 12" as the mean for both shapes. The length of the entire moldings for this dormer is 12' long, making the total amount of surface of the same 12 sq. ft. The ridge coping of the dormer window has a surface of 2' X 3' 6" = 7 sq. ft. area. The coping or ridge cresting of the gable has a surface of 2' 6" X 4' = 10 sq. ft. area, making for both 7' -f 10' = 17 sq. ft. surface or area. The two finiah on both gables will require 14J sq. ft. of iron; for the larger one, it will take 10 sq. ft. and for the smaller one, it will take 4^ sq. ft. To find the area contained in the surface of each one of the turrets or ornamental pillars which are located at the 92 CORNICE WORK MANUAL base of the gable the following method may be used, if the entire members are to be made out of the flat, excepting the ball ornaments, which are on the top of each; these can be made of stamped or spun zinc. The column measures 2' 6" in height and has a diameter of 10", thus 2' 7f" x 2' 6'' — 6 sq. ft. and 58^ sq. ins. or say 6J- sq. ft. each; for both, this would be 13 sq. ft. The amount of material required to make the curved parts of this ornamental member from, may be figured in the following manner. Take the largest member or the one which has the greatest diameter, which is 16"; the circumference of the same will be 4' 2J". Next measure up the profile of the parts, 3J' for both the top ornamental part and also for the pendant part below the base of the column, hence H' x 2' = T x 4' 21" — 29 gq. ft. and about 25 sq. ins. This will give ample material from which to cut all the curves and pieces required for both top and bottom parts for the two ornaments as the design Fig. 89 shows. It will also be noticed that at each side of the building, immediately under the head-blocks, is shown a piece of iron about 1 foot square, as the Figs. 89 and 90 show at that place. Allow 2 sq. ft. for these. Also allow about 10 sq. ft. of iron for waste in cutting, etc. The following list will show the result of the foregoing at a glance giving the entire amount of material or iron required for the cornice as shown by the design, Fig. 89: For Sections A and B, 38 sq. ft. For Ridge Crestings, 17 sq. ft. “ C “ D, 9J “ “ Finials, 1U “ « Gable Cornice, 47f “ “ Turrets, 42 « << Deck “ 281 .. “ Under-blocks, 2 a Capings, 29i “ “ Waste, 10 tt Head-blocks, 18 it Crestings, 141 «. Total, 313 sq, ft tt Dormer window, 42 “ CORNICE WORK MANUAL 93 The foregoing estimate will be found nearly correct enough to give a safe margin to figure the weight of the iron required for this job. One point to be borne in mind when figuring and measuring up woik is to be sure and figure enough iron to allow sufficient latitude for waste in the cut¬ ting. Those who care to figure more closely are referred to the methods as given for this branch in the article YI. The following are the general dimensions for this cornice: The extreme length horizontally for the center is 28' 2"; the height of the main cornice is 17J"; the projection is 9", and the right-angle horizontal parts from the main cornice are 7J". The height of the deck cornice is 9" and its projection is 9" also. The width of the two end copings is 12" on the front exposure. The dormer window measures from its base line to the extreme top¬ most part of its finial 8' 8"; its average width is 4^', and the gable of the same projects out from the roof 4'. The main gable projects out from the roof 6'. The distance across the base from the two turrets is 14' and the perpendicular height from a horizontal line level with the lowest line of the horizontal cornice to the highest point of the gable cornice is 9' 6". The height of the main finial is 5' from the gable to its top ornament. The length of the ornamental turrets and pillars is 7' and their average diameter is 13". The height of the cresting on the deck cornice is 12" and the entire cresting is to be made of 1" square pieces. The height of the finial on the dormer window is 2' 5" from the top of the gable and is on an average 3±" thick through the main body of the lowest part. The ornaments on the front of the dormer window may be either hammered to shape or they may be of stamped zinc or iron. The truss or head-blocks, it will be noticed, are to have a raised panel on the front while the sides need merely have the outlines of the figure show as the designs of the end elevations give of all these details. Drawings will be given showing the details drawn to the scale of 1" to the foot. The followiug is the list of all the circular ornaments for the entire cornice. Some of these are complete spheres, while some are but half-balls or hemispheres. These may be of spun zinc. For the main and the gable cornice there will be required fifty 2" hemispheres. For the dormer window twenty-four 1J" and four 2" hemispheres will also be required, one 2" and one 1J" sphere for the finial on the same. For the finial on the main gab’e there will be required two 1J", three 2" and one 3" hemispheres. In addition for this finial there will be required one 4", one 2J" and one 1J" spheres. For the turrets twenty-five 1£" hemispheres, and also two 6" and two 94 CORNICE WORK MANUAL 4" spheres are necessary; sixteen 2" spheres will be required for the up¬ right posts of the cresting. The head-blocks require two 7" spheres and also four li" hemi¬ spheres, and the deck cornice will want thirty-two of the same size to com¬ plete it. The ridge-cresting of the dormer window requires three 3" spheres, and the ridge-cresting of the gable requires the same number of 4" spheres. The following gives the complete list of all the different sizes of both the half-balls or hemispheres, and also of the whole balls or spheres. These are as follows: 87 14 " Hemispheres. 1 2J" Spheres. «( << 57 2" 1 3" 2 1£" Spheres. 17 2" <( 2r 3 3" 6 4" 2 6 " 2 7" <( a u ff In order to get all the other material that enters into the make-up of this cornice the items rivets, braces, solder, etc., must be figured under this head. Methods to accomplish this in the most expeditious manner are fully given in the articles VI and VII; the e chapters also give the most approved manner and the time it ought to take to get out and completely finish a cornice according to the best practice in the trade at the present day. It is also to be noted that a strip of tin or iron 20" wide is to be put on the edge of the deck, covering the same 18" back and lapping over and down 2". This strip will be the entire length across the front, that is, 28' long. If this strip is to be of tin, it must be entered under that head in the cost, but if of iron, the same must be added to the total surface of the quantity as found for the cornice. Upon this strip the head-blocks and also the cresting which is shown above, the deck cornice is fastened. Another item that is to be figured at this stage are the valleys; these are to be of tin for the gable and also for the dormer window. The gable valleys are to be 20" wide and for the dormer 14". The method most used to ascertain the lengths or valleys as these are situated is as follows: Take the distance from. A to B of Fig. 92, which is the plan; transpo.-e this to the line A to B of Fig. 94. The length of this line as found is the base line, which in this case is S' long. Then from one of the side elevations ascertain the vertical height of the gable as from S to S' of Fig. 91. Erect a perpendicular line of the length as found from S to S' of Fig. 91, and from B of Fig. 94 to D of the same figure, which gives the altitude. Connect the points D and A by a line, and the length that this last line ha i is the actual length of the required valley for one side of the gable. The last line so drawn is the hypothenuse. The height of the altitude in this case being 8' makes the CORNICE WORK MANUAL 95 length of the liypothenuse or the actual length of the valley in this case 11' V". The foregoing is merely an actual demonstration of a very simple geo¬ metrical rule covering problems of this class. The rule is as follows: Add the square of the base to the square of the altitude and the square root of the sum is the liypothenuse, as 8 2 x8 2 , v /128=ll' 7", the result as found for one side. To this must be added the quantity of material it will take to lap the ends over each other at the top ridge where the tin lays on tha mansard roof. I will say that 12' allowed for each side will be the re¬ quired length for the two sides. This will be 24 feet of valley for the gable. The quantity required for the dormer is found in a precisely similar way as has been given for the gable valleys, with the. difference, of course, that the lengths are different, and that the valleys do not run down as far on these as they do on the sides of the main gable. I have given the distances for the dormer valleys in Fig. 94 from B to F for the base and from B to E for the perpendicular or the altitude; from E to F gives the length of the valleys as demanded by the plan, Fig. 92. In the foregoing I have given the complete and necessary steps to measure up the cornice under consider¬ ation. The methods used to accomplish the same result in regard to what has to be done for the roofing or for the slating, I will give further on. To ascertain how much the iron as found weighs, refer to the table of weights as given in article VII. If the cornice is to be made of 26 gauge iron refer to the gauge number 26 of the table; directly underneath this will be found the weight of this gauge of iron in ounces per square foot, which is 15 ounces. ► The total quantity as found for the square feet of iron in the cornice is 841! sq. ft.; 341! S( l- x 15 = 5 > 119 ozs - 16 = 320 lbs *» nearly. To this is to be added the strip 20" wide and 28' long, which goes on the space on the deck immediately behind the deck or cresting cornice, that is, if galvanized iron is to be used for it. In case iron should be used the total amount will be as follows: 28' x 12'' = 336" x 20"= 6720 = 144= 46 I®® sq. ft., or nearly 47 sq. ft. X 15 ozs. = 705 oz. -f- 16 = 44 lbs. -f 320 lbs.= 364 lbs. This will be the total weight of all the iron required for the entire job. The table further gives all the data for the cost of the iron, as will be readily seen by reference. The tin for the gutters must also be figured in this estimate. They are to be made of 20" wide tin, and the total length required will be 20'. The tin is to be painted on both sides, and to be put into the wood through which the carpenter will build and make ready for the workmen doing the putting in of the gutters. A3" square leader is to convey the water down the building. The conducting leader is to be provided with a suitable filter, and cutting off two feet up from the surface level of the ground. CORNICE WORK MANUAL 96 In the foregoing is presented all that is needed to give the student a good idea of the different items which he has to figure, measure up and estimate on when a job as the designs—as presented by the Figs. 89 to 94—is under consideration. In the following are some of the parts of this cornice drawn to a larger scale; I will term them detail or working drawings. Although the space does not permit to give full size drawings for these details, the scale that they are enlarged to will give the student sufficiently large enough draw¬ ings so that he can very readily understand them, and use them to practice from. Besides this, if he would practice and make the drawings to a dif¬ ferent scale from that given, the benefit derived from such a course will greatly help to make him familiar with the different scales, and will tend to make him proficient and accurate in his future work. The first design shown, which has been enlarged from to the scale CORNICE WORK MANUAL 97 of 1' to the foot, is one of the trusses or head-blocks of the deck cornice. The Figs. 95 and 96 present two views of these. The part A of Fig. 95 shows the front view of one of the trusses. This view gives all the details of this block seen from this point of view. It gives the proper relative posi¬ tion of all the curves and moldings in both the pendant part of the truss and of the deck cornice, the relative position of the hemispheres, which are soldered to the receding curves of the moldings, also the position of the 1" square pieced cresting and the upright posts for it. The paneled projections are shown at the bottom end, both for the block and for the wall coping. Part B shows the apex of the gable and the section of the ridge cresting or coping, as it appears from this front view, giving a full 93 CORNICE WORK MANUAL Fig. 93, at No. 3. No. 4 is the profile of the'deck cornice and is shown in outline by the dotted line in Fig. 96. The head block is shown in the proper relative position that it occupies on the deck; the position of the cresting is shown by the dotted lines through the head-blocks.. This figure also presents the projection of the panel on the coping, giving its shape and the data of its proper location. A side view of the profile for the stretch-out, as demanded for it by the front elevation in Fig. 89. Fig. 96 gives the side view of Fig. 95, showing the profile of the truss molding and the paneled projection in front of the head-block. The pro¬ file as shown by No. 3, corresponds to that of the profile as shown by Q CORNICE WORK MANUAL 99 ridge coping is also given in this figure, this coping being the crest of the main gable. The two views, Figs. 95 and 96, also give all the data for the top part of the head-blocks and show how the balls are situated on their supports. The drawings show the top slightly raised with flanges soldered to them. This can be seen on the under side of the ball. The position of the hemispheres, which are used on the trusses and on the deck cornice, are also shown. Figs. 97 and 98 are drawn to the scale of J" to the foot and are the detail drawings of the finial on the main gable. The ornamental scale Fig.98. 100 CORNICE WORK MANUAL work is to be made of either iron or zinc, hammered or stamped to the shape as the design demands. The positions and the outward projection of all the ornaments is clearly shown by the side view, Fig. 98. The rod has three sections divided and fastened together by the balls as shown in the figures. The arrow vane is to be made so that it turns freely, in order that it may indicate at all times from which direction the wind blows. In Fig. 98 is illustrated the shape that the ridge coping has where it joins the linial and at the same time where and how it braces the latter. The details of the spear-head and cf the feather end of the vane are all plainly presented in the drawings. CORNICE WORK MANUAL 102 v Fig.101 Front Elevation 1 to the Foot 102 CORNICE WORK MANUAL The detail drawings of the dormer window are seen in Figs. 99 and 100. These are drawn to the scale of to the foot. Fig. 99 gives one-half of the entire front view of this window. All the ornamental scrolls on this front may be either stamped or hammered to shape by hand work. The front view of the finial and a section of the ridge coping is shown. Down the outer edge a half-inch projection is to be made, and at the lower scroll the center is to be cut as the projection on Fig. 100 indi¬ cates, so that it can be formed into the shape as the figure demands. The front being given by this view, Fig. 99, for the shape of the frame for the window, refer to Fig. 100 for the profile as at A or B. Fig. 99 gives the profile of the cornice for this window. At 1 is shown the gable cornice and at 2 the profile of the horizontal part. These two profiles correspond with those of the numbers 1 and 2 as in Fig. 93. Fig. 99 gives the actual length of the gable cornice, while the side view, Fig. 100, gives the length back for that part. The sheathing or covering of the sides is to be carried straight backward as the outline of the front indicates. The curved window moldings are to be fitted to a frame which will be furnished by the carpenter. Fig. 100 presents to view the end wall coping at its lower end showing where the panel terminates. The entire side view of the CORNICE WORK MANUAL 103 ridge coping or cresting for the dormer window is given, showing both ends, how connected and joined to the finial, etc. This view also gives the data for the dimensions of the finial from this point of view, while Fig. 99 gives it for the front. Figs. 101 to 103 give all the details of the entire pillars or the orna¬ mental turrets, showing all the joints where the gable cornice miters on the round and curved parts of the pillar. Fig. 102 shows how the hori¬ zontal cornice miters on the same and also by the dotted profile of the gable cornice where it has its position from this point of view. In Fig. 101 the position of the horizontal cornice is shown by the dotted outline, No. 6. It will be observed that the horizontal sections of the cornices are of two different profiles, and that the gable cornice has a different profile from either one of the two other cornices. The reason for this will be seen by examining Fig. 103, which is the plan. This shows a different projec¬ tion for each one of the sections. It also gives the correct relative position of each of the lines and moldings of the three sections, placed in such shape that all the data for the laying out of the patterns for the miters of these shapes can be obtained for this view from it. This view, at the same time, gives the correct position for all the curved parts of the pillar, as far as is consistent, so that they can be used in laying out the various patterns further on. The profile of the gable section is shown by No. 7, cut at right-angles to the same. The profile X shows how this section appears to the eye looking up 104 CORNICE WORK MANUAL at it when the cornice is in position. This point, it will be noticed, is one of importance in designing a structure of this class. The section of the main cornice, of which No. 5 is the profile, it will be seen, has a greater height than the gable cornice has, but when the two sections are in posi¬ tion on the building, the gable cornice will appear to be the larger or wider section of the two, and yet is really the smaller one. This seeming difference is caused by the oblique position in which the gable section is placed from the horizontal, thus exposing more of the surface of these sections vertically to the view than of the horizontal cornice. This, as a natural result, makes the gable cornice appear larger to the eye than the other sections. The ability and judgment of proportion required to make every part of a design harmonize, so that the effect as a whole is pleasing* and that every member of a cornice appears just right in a design, are faculties very desirable for every cornice designer and cutter to possess. I would recommend the student to cultivate and educate himself in this direction as much as he possibly can. The means to perfect himself in this branch of cornice work are ample almost everywhere. I would advise the learner to take a course of lessons in drawing, designing, etc., with some competent teacher in these branches, to begin with. Then the chief means to make himself competent are his own willingness to study, his perseverance and actual practical work in this branch, always striving to come as near to a perfect result as he can possibly attain. I hope that the few hints thus given may benefit the student and direct him into the course of study which will enable him to add to his efficiency as a work¬ man. It remains with him to act upon them, so that he may reap the practical benefits therefrom. I will next describe the pillar of Fig. 101 in detail. The total length from the top of the ball A to the bottom of the ball B is 6' 4". The diameter of the ball A is 5", that of the ball B is 4". The width of the widest part of the fluted portion of the pendant is 14J", as from C to D; its vertical height is 11" from X to X'. The base from S to S is 12", and from S' to S' it is 9" across. The column is 9" in diameter and 2' 7" high. The ornamental spiral ribs or flutes extend outward from the colunm J" and are 1J" wide. The widest part of the cap from 3 to 4 is 16", the distance from 1 to 2 is 10J", from 5 to 6 is 12", from 7 to 8 is 16" and from 9 to 10 is 17". From 9 to A is 7", from A to B 4" and from B to 10 6". The foregoing figures give enough data to enable the student to draw the entire figure to any scale he desires. Fig. 101 shows the front view of the bottom end of the panel projection of the end wall coping for the left-hand end of the building. The various profiles as shown in this figure correspond exactly with those in Fig. 93. The posi- CORNICE WORK MANUAL 105 tion of each line of half-balls or hemispheres is also shown by Figs. 101 and 102. This completes the necessary preliminary data to enable th-i student to get all the required measurements to lay out all the pitteras for each member of the different sections in this cornice, as given by Fig. 89. In this article I have also shown how to measure up and figure toe weight, etc., of all the iron needed to complete this cornice. Toe next item to treat on in connection with this job will be the covering of the front roof, embracing the mansard, gable and dormer window. XX. DHTAIlkS OF SLATING AfiD SLATERS’ TOOLS. The first step to be taken in figuring up the quantity of slate it will take to slate or cover a roof, is to ascertain the amount of surface of the roof that is to be covered. Then the style, size of slate to be used, how much of the slate is to lap or cover and also how much of the slate is to show to the weather. Then the quality and color is to be figured on which is to be used for any given job. The roof as submitted in the article XIX, Figs. 89 and 92, may be measured up by the following method. Measure from the hip of the gable to the point X as Fig. 89 shows; this distance measures 7'. Then add to this the distance from point X to the left end wall of the building which is 18". Then from point X', which is the same distance away from the gable as the point X, measure the distance from it to the right end wall of the front. This distmce is 10'6"; add the distances as found together, which make 19' 2". Multiply this by the distance from point 1 to 2 of Fig. 90, which is 9'. Thus we hive 19' 2" X 9' = 172J sq. ft. for this part of the roof. For the gable, measure from point X to X' of Fig. 90, which is 4' 3"; multiply this by the dis¬ tance from the top of the ridge of the gable to the gutter line, which is 11', as the front elevation, Fig. 89, shows. These 4' 3" X 11 = 46| sq ft. Add to this the surface from point X of Fig. 90, to the front end of the gable, which is 2' 6" X by 11' = 27^'; add to this the same amount for the other side of the gable, which makes this result 55 sq. ft; then add the 46f sq. ft. as found for the surfaces for both sides from the point X to X' which makes 1011 sq. ft., which is the roof surface of the entire gable. For the surface of the dormer window roof, multiply the distance from point 1 to 2 of Fig. 90 by the distance from point 1 to 2 of Fig. 89. 106 CORNICE WORK MANUAL The distance in Fig. 90 is 1' 6" and in Fig. 89 it is 3' 6". Thus we have V 6" X 3' 6" = sq. ft. Add to this twice the amount of the area contained between points 1, X and the outer edge of the gable of the dormer window. This is 2' 6" for the distance from point 1 to the front edge of the roof multiplied by the slant height of the same, a3 2' 6" X 3' 6" = 8| sq. ft. X 2 = 17^ sq. ft. 4* 5J sq. ft. = 22J sq. ft. of actual surface on this dormer roof. The amount of area found for the entire square, but less than. 8 feet square. We deduct one-half of the area as found for the dormer from the whole total of the entire result as found, this is, 359 sq. ft. 4 sq. in. — 9 sq. ft. = 350 sq. ft. = 3J squares as the actual total of slate roofing to be figured for the roofs as given in Fig. 89. For convenience sake, we will drop the extra 4 sq. inches out of this calcula¬ tion. The next step will be to get the quantity of slate required to cover this surface. In general work the sizes most used are 8" x 16" and 10" X 18". The size or nails used are generally 1J", either galvanized, tinned or wire. surfaces so far, are for the main roof 172J sq. ft., gable roof 101§ sq. ft., dormer roof 22| sq. ft., making a total of 297 sq. ft. nearly. It is a standard rule among slate rooters, architects, contractors and builders in general, to figure for roofs with hips, gables and dormers, the valleys for their entire length as one foot more surface as long as the section is that adjoins the valley. Each valley has, as a matter of course, two sections of roof adjoining* so that the entire length of the vaUey is figured double. To illustrate this rule in this case, we have 23' 2" of valley on the main gable roof and 8' of the valley on the dormer roof. Both added together mike 31' 2" X 2 =^62 sq. ft. and 4 sq. in., this result must now be added to the total of the roof surface as found. This operation is 297 sq. ft. 4- 62 sq. ft. 4 sq. in. = 359 sq. ft. and 4 sq. in. The foregoing rule and the extra allowance that it gives, is to compensate for the extra waste and labor in fitting, cutting and laying these parts as des- scribed. It is also customary to make no reduction in figuring the quantity of slate for a roof, for the openings for chimneys, dormer windows, sky lights, scuttle holes, etc., unless they are larger than four feet square. In case they are more than four feet square and less than eight feet, allow one- half. If larger than ten feet square, deduct the whole surface as found for them, that they occupy of the surface of the roof. All extra cutting, miter¬ ing and fitting is to be charged for as extra. It is understood that the builder is to furnish all extra wood-work and cant strips required. In accordance with the foregoing rules,'the dormer window as f^hown by Fig. 89 takes up only 18 sq. ft. of the roof area, this being 2 sq. ft. more than 4 feet CORNICE WORK MANUAL 107 The next item would be, what amount of nails will be required to properly lay this amount of slate? This will depend upon the kind of nails used for the purpose. Galvanized iron nails are the heaviest, next in weight aie tin nails, while wire nails are the lightest, and for a given amount of slate, the lightest amount in weight will b3 required. The following table gives all the particulars needed for this item fig¬ ured in pounds. In this table an ample margin is left for waste, loss, etc. WEIGHT OF NAILS REQUIRED TO LAY A SQUARE OF SLATE. Sizes of Slat e in Inches. 3ds. in pound-. 4ds. in pounds. Galv’d. Tinned. Wire. Galv’d. Tinned. Wire. 12X12 4 3 2K 4K 3 2K to to to to to to to 12X 6 6 5 4K 7 6 5 14X12 2K 2 2 3 3 . 2 to to to to to to to 14X7 4K 4 3K 5K 4M 2M 16X12 2% 2 2M 2 to to to to to to to 16X 8 CO 2 % 3 K 3M 3K 18X12 m IK IK iK to to to to to to to 18x 9 2K IK 3 K 2K 20X14 IK IK l IK IK IK to to to to to to to 20X10 l 7 /s IK IK 2K 2 IK 22X14 IK IK l iK IK iK to to to to to to to 22X11 IK IK IK 2 IK IK 24X16 1 K K IK l K to to to to to to to 24X12 IK IK 1 IK IK IK The third item to be considered is the roofing felt or paper to be used under the slate. The material most used by roofers for this purpose is what is called tarred board. It is usually sold by the roll and the different thicknesses are designated by the numbers 1, 2 and 3. No. 2 weighs from Id to l-i lbs. per yard. A roll weighs 50 lbs. and comes in width from 80" to 32" wide. This paper board is made out of straw and is then saturated with tar. Roofing felt or a better quality of sheeting also used for this pur¬ pose, is made from old rags, etc., and is in fact a felt, thoroughly saturated with tar; this weighs for No. 1. 2£ lbs. per square yard; No. 2, If lbs. and 108 CORNICE WORK MANUAL No. 3, 1 ^ lbs. per square yard. Of the two kinds the tarred-roofing felt is undoubtedly the better. The cost is somewhat higher than that of the tarred paper board, although the latter is a somewhat stiffer material, and regarded with favor by many roofers and slaters. I may also state that some roofing firms use even a lighter grade of tarred paper board than No. 2 in some cases. The following are general rules and data which will be useful to the student: A square of slate roofing is an area of 100 superficial feet of slating when laid. By the term gauge is meant the distance between the courses of the slate. By the lap or cover is meant the distance which each slate over-laps the slate one below it. This lap varies f-om 2 " to 4". The standard is 3". The margin is the width of the course exposed to the weather; the pitch of a slate roof should be at least 1" in 4 for the best results. To compute the surface of a slate when laid and the number of squares of slating, subtract the lap from the length of the slate, which is 3". Half of the length remaining will give the surface exposed, which when multiplied by the width of the slate, will give the surface required. Use the surface thus found to divide the sum of square inches in a square and the result is the number of slates required to make a square. (The foregoing table has been figured by this rule). Example: The size of a slate being 8 "xl 6 ", lap 3 ', how many slate are required for a square of slate when laid? 16 — 3 = 13 2 = 6.5 X 8 == 52", 14,400" - 4 - 52" = 275.48 or as the table gives, 276 nearly The weight of slate varies from 2 to 4.53 lbs. per square foot and in thickness from .125 to .3125 of an inch. The average weight of slate is from 167 to 181 lbs. per cubic foot. It requires nearly 2 J sq. ft. of slate to make one of slating. The principal slate quarries in this country are located in Rutland Co., Vt.; Washington Co., N. Y.; Northampton, York and Lehigh Cos., Pa.; some in Virginia; Monson, Me.; and in Baraga Co., Mich.; and in different other localities to some extent. Most of our red, green and purple slates are found in the quarries of New York and Vermont. The blue-black and black varieties are found in the other states mentioned. The Lehigh and Bangor brands are from the quarries in Pennsylvania; of these brands the Bangor brand No. 1 seems to be the favorite with consumers. The celebrated Peach Bottom brand is also a Pennsylvania slate. This variety of slate is principally noted for tough¬ ness, making it one of the best and most durable known for the purpose of roofing. Of all the different varieties of slate, the clay slates stand at the head, both.in price and in general worth. CORNICE WORK MANUAL 1(9 The best kinds of slate to select for use are those that are easily split and are of a compact grain. If hard they should not be too brittle, or it soft they must be tough and free from impurities, thus being non-absorb¬ ent of water. The familiar experiment of setting the slate upright in a dish of water and noting how far the water ascends by capillary attraction in the substance of the slate, is still one of the best tests that can be made. In a good slate the water should rise only slightly above the surrounding surface. A slate which draws up the water to a considerable height should be avoided as likely to be destroyed by frosts and the disintegrating influences of the air when exposed to the same. Some slates apparently hard and non-absorbent decompose on exposure to the air by chemical action. These are best detected by placing samples in test tubes and covering them with a saturated aqueous solution of sulphurous acid. A bad slate will always begin in a few days to crumble away, while a good sample will resist the action of the acid for weeks and even months. Good slate also has the ability to withstand a considerable amount of heat and this without crumbling or cracking. The average crushing re¬ sistance of first-class brands of slate is from 18,000 to 20,000 lbs. per square inch. The foregoing qualities are in a measure the property of all the various firts-class slates, these varying from a dark, deep black to blue, if uniform in shade, with a clear ring, they may be considered as unfading and of good quality. The other shades, such as the sea-green or purple varie¬ ties, are with some exceptions not so reliable as to their ability to retain their original color. Of the red varieties, the medium grades are the most reliable, being tough and the best to retain their original color. The de¬ fects inherent in some of the softer kinds of black slate, which appear on roofs in the shape of spots or a white efflorescence after the slate has been put on but a short time, and in some cases ruining the roofs, is principally caused by carbonaceous matter and disseminated sulphide of iron partly de¬ composed. Great care must be used in selecting slate of this grade. See that they are even in color and have a good ring to obtain the best results. The hardness or specific gravity, contrary to the usual belief, gives no reliable indication of the quality of the slate. A better test consists of striking them together or tapping them with a hard substance. If they ring clearly under this treatment they are likely to be good, and a dull sound or percussion usually shows a poor slate. Of the different grades that slate is classified into, the No. 1 grade is of course the best. This is the grade which is free from knots, of smooth, even texture, of straight grain, and of a solid uniform color. The second grade in some cases is nearly up to the standard of good slate, but it will be noticed that they are mostly lacking in one or more of the points enum- 110 CORNICE WORK MANUAL erated for the standard for No. 1. The third grade of slates is what is known in the trade as ribbon slate. This latter kind are slates that have sometimes a band, varying from an almost inperceptible line to a band from a half-inch wide to one or two inches wide, running through their width or across their face. This kind of slate is very easily broken and I may add, a kind that cannot or should not be used if a good job of slatinglis to be done. As a rule, all slates contain fine lines, running parallel with what may be termed planes of secondary stratification or crystallization. By holding a roofing slate a little below the eye and inclined from it, these lines may be seen. If they run parallel with the long side of the slate this is properly cut, and, if of good quality, will keep its place on the roof. If the lines run across the slate, or at an angle with its sides, it is likely, whatever the quality, to break across or lose a corner at the least provocation. It may be of interest to give the method of laying or slating a roof, that contractors of the cheap or lowest bidder class sometimes use wlun they get a chance. A job of this kind is generally done in the follow¬ ing manner: Strips from two to four inches wide are used and laid an equal space apart, as the strips are wide, or even further apart in some cases. These strips are nailed to the rafters with as few nails as possible, so that they will not slide or roll off the roof when the extra weight that the slate imposes upon them to hold to the roof is placed upon them to hold there. Some “Jerry” contractors would even go as far as to put no paper on these strips under the slate at all if they dared. Then by using the cheapest grade of ribbon slate and as few nails as possible, they use no cement and to cap the whole operation, have the cheapest grade of help with which to do the work. It is easily seen by this how parties of this stamp, by follow¬ ing the methods described, are able to underbid and to the discredit of the trade in general, to often succeed in getting work when competing with honest firms who do good work and bid accordingly. In contrast to the foregoing a first-class job, to be done well in every particular, requires that the quality of the slate is fully up to the required standard as indicated for goo t woik. In the stock selected, all inferior slates are thrown out, and when or where cement is needed it should be used; the slate should be securely and properly nailed with the proper lap and exposure for the best results. The sheathing should be of properly seasoned stuff, with no mora sp ice than one inch between the boards and these securely nailed to the rafters and covered with a good quality of roofing felt. On this the slates may be laid according to the size slates used as indicated in the foregoing rules and directions. Then the workmen should be mechanics to the full extent that the name implies—men who are able to set tfie slate in perfect CORNICE WORK MANUAL 111 line, and do their own laying out of their work from a set of plans, whether of a plain or ornamental design. They should be able to do all the cutting and trimming so that when the slate is laid it will present a smooth and finished appearance on the roof. In short, to do a first-class job of slating requires mechanics of a high order in this trade, men of good judgment, cool heads and a high grade of skill. These are the desirable and the only grade of workmen who will do work as it should be done. The following are a list of some of the tools used by slaters. One large and one small trowel, one leather belt with loops to attach or fasten tools to when at work and a nail pouch fastened to it in such a way as to be handily got at to get the nails when required. A dressing stake as in Fig. 104, and a slater’s knife as shown by Fig. 105. These two tools are used to trim, dress, and by some slaters who have no slate-dressing machines in their shops or yard, to make the nail holes through the slates, before they are taken to the job where they are to be used on the roof. These tools are also used on Fig. 105 jobs where there is any mitering, trimming, etc., to bo done. Fig. 106 shows the common roofing stake; this is a more handy and lighter tool than the dressing stake, Fig. 104, and which can be fastened in almost any convenient position on a roof. The slater’s hammer, as Fig. 107 shows, is so well adapted to the various uses that it is put to, that there is probably no better shape that could be devised, that would meet all the requirements 112 CORNICE WORK MANUAL made of a first-class slateing tool of this kind, as the shape now in general use is as presented by Fig. 107. A hammer as illustrated in the figure, combines the following features in one tool. A slater’s knife, a claw to draw nails, the flat-faced end to drive nails and the other end to punch nail holes through the slates. The tool shown by Fig. 108 is called the ripper; it has a long thin blade with two notched flat hooks at its end, used for the pur¬ pose of drawing out or cutting nails with which the slates are fastened to the sheathing, so that the slates can be drawn out from under those laid over them, in case it is desired to replace a slate when broken or for any other cause. This tool has its handle so arranged that it keeps the hand free from contact with the roof so that it may not be injured when using this tool. There are some slaters who use a more extensive kit than the tools indicated. The above are those that can be bought from any slater’s supply house, and are made in a superior and better style than they could be made by any shops outside of the regular manufacturers. That is, these tools can be bought cheaper from them than from any firm not regularly engaged in manufacturing such tools could make one single tool of the kinds that a slater uses to order. This fact alone is sufficient to show why it is policy to buy them from the regular trade. Any other small tools that a slater may want any blacksmith can make for him on short notice, and that in any shape that he fancies or wants them made. Roofing cement can also be bought from supply houses anywhere. The cement used is Portland, roofer’s putty and cement made from iron ore, oil, lead and cement. Many roofers have their own favorite cemenv for this purpose. CORNICE WORK MANUAL 113 XXI. DETAILS FOH VOHlTLOfiTKIi AflD HR^lfiO JAITBH PATTE1RHS. In the chapters XIX and XX the preliminary details, outlines of the designs, weights and all necessary data to estimate the total cost of a cor¬ nice and the slating as demanded by the designs shown by the Figs. 89 to 92, are given in full. Some of the more important parts of the cornice are drawn to a larger scale than what the full design as Fig. 89 gives. This has been done so as to enable the student to more readily understand how to transpose drawings from one scale to another of a different scale of measurement. How this is accomplished has been given fully in the preceding chapters. In the following descriptions and methods which I will make use of to lay out the various parts entering into the make-up of this design, I will make frequent and numerous references to the drawings shown in the pre¬ ceding chapters, particularly those which have been enlarged to the scale of one inch to the foot, from the original elevations as shown by Figs. 89 to 92.. The first detail of the entire structure, which I will treat on in full, will be the section of the horizontal cornice designated by the letter B of Fig. 89, and the adjoining section C, as shown by the Fig. 90. These two sections B and 0 form a right-angle miter where they join to each other, both being horizontal cornices, and each having the same height vertically but differing from each other in their horizontal width as is shown by the profiles 5 and 6 of Fig. 93. The section No. 5, when the stretch-out of the same is shown fully developed, will also show the miter line of the same as demanded by the junction of this section turned to the right hand, as shown by the Fig. 90. The enlarged view of this section is shown by the Fig. 102, which is 1" to the foot. In the development of the various miters and stretch-outs I have made use of a still larger scale, namely, 2 " to the foot. By using this larger scale a more convenient and plainer drawing is presented to the student than what the cramped and smaller scale allows of, thus enabling one to make the different and numerous lines on the drawings in such a manner that they can be easily traced and readily understood by the student. I will assume that the general hints and rules given in preceding papers on this branch of cornice work have been read by the student and that he will avail himself of the information and knowledge he has obtained therefrom to the fullest extent as far as it is applicable to the problems presented by this cornice now under considera- 114 CORNICE WORK MANUAL tion. In particular, I would advise him to adopt the shortest methods to accomplish the end sought for, namely, the laying out of correct patterns for the different problems met with in the development of the various parts, miters and stretch-outs of this cornice. Some of the most important considerations and items to be borne in mind by the person arranging the different parts of this cornice are how to cut the different parts out of the iron to the best advantage with the least possible waste, then in arranging the grouping or assembling of the various parts of the cornice aim to have the work in such shape before it leaves the shop that it can readily be transported to the building on to which the work is to be placed, and finally that the operation of fastening the work permanently into position is simplified to the least possible degree. To illustrate this last point, the Fig. 101 furnishes a very apt example of where the generalship of a thorough mechanic in this branch has full scope to display itself, although the example in itself is not one of the most intricate which are often met with in cornice work, yet it will serve the purpose to show where a very material saving of time and labor may be effected by adopting the right way to attain this result; namely, instead of arranging the details of these members in 3uch a shape that they would be intended to be put upon the building piece-meal or singly, the better method would be to make this entire section of the cornice as shown by the drawing Fig. 101, solid or in one piece, embracing the mem¬ bers shown by profiles 5, 6 and a part of 7, all joined permanently to the turret as the drawing shows, and when so done this much of the cornice could be put up on to the building in one piece and permanently fastened into its final position. As will be noticed, I have deemed this subject worthy of a rather critical treatment. In addition I would urge the stu¬ dent to bear in mind that if it is desirable for him to attain the highest grade of efficiency in this branch, the hints given as to their general appli¬ cation in this class of work in the cornice trade must be applied and can¬ not be ignored if the best results are aimed at. The first step in getting out these problems is fully set forth in the following: Draw the profile of number 5 to any convenient scale as shown in Fig. 109. I have drawn these profiles to the convenient scale of 2" to the foot, the plan and elevations being drawn to only to the foot. I regarded the latter scale as too small for the purpose of giving the full development of these figures; for this reason I preferred the 2" scale which gives the student a better chance to more readily understand the full development of the problems which follow. As will be seen, the profile number 5 of Fig. 109 gives the full outline of B of Fig. 89 and also corresponds to 5 of the Fig. 101. As this projeo- CORNICE WORK MANUAL 115 tion is drawn to the correct width as demanded for the same by the plan Figs. 92 and 103 in all its different curves and molds, this member will serve as the guice and in a measure determines the outline of the member number 6 of the horizontal cornice which miters onto it at right-angles, as shown by the plans Fig. 92 and 103. The vertical height and also the horizontal width of both these members being fixed, it remains only to obtain the true outline of either profile, one taken from the other as the case may be, if one outline has been drawn, this being the case in this instance as the Fig 109 shows. For number 5 in this case the manner in which the entire operation is accom¬ plished is as follows, both to obtain the correct corresponding profiles and also the data for the miter line for both members, as demanded for this case. I may add at this instance that the same principles governing this case are also applicable to most any problem where it is de¬ sirable to join moldings of different widths to gether and their development in full. First draw the line A to B, Fig. 109. The distance from point A to C in this case being made only the precise length demanded for the miter or width of section number 6; I leave it to the student to add whatever length is desired on any cornice he may employ this method for, my aim being merely to show how to develop the data for a miter-joint of this class, the line from 0 to point 2 being at right-angles to line A to B-—as shown for the top of this section. The outline of the profile is shown from point 2 to 41; this completes the projection of section number 5. Next draw the miter line S to A as shown. Draw line A to K at right-angles to line A to B. Draw the line S to N as shown, the dis¬ tance from point A to N is the same as the extreme width of section 5 shows as a matterhf course. Now the lines from both the lines S to N 116 CORNICE WORK MANUAL and S to 0 downward have the same corresponding length to each other as shown, but their positions are different on a horizontal plane as shown where they cut the lines S to N and S to C. Or to give another description and a more graphic illustration of the true relation of these various lines to each other, I will put this problem in this way: assume the rectangular space bounded by the points S, N, A and C, which is cut by the line S to A, is one end of a block equal in length or height as the distance is from line S to C to the line 38 and 39. Stand this block on one end, draw the projection as shown by 5 on one of the widest vertical sides of this block, or suppose that the line S to C hinged the tw*> surfaces so that the side number ? could be dropped to a CORNICE WORK MANUAL 117 vertical plane against the side of this block. The outline of the profile as shown may now be divided into any number of convenient parts, as has been done in the drawing from 1 to 41; draw from the points as found or determined by the division of the outline of the profile lines, cutting the ine S to C and ending at the miter line S to A. All these lines are at right-angles to the line S to C, or, in other words, to the upper edge of the rectangular block. Now if each of the dotted lines were marked on to the projection drawn on to the vertical side of the block and continued on to the top end as shown, then if the block were cut into two parts verti¬ cally on the line S to A and also the outline of profile cut at right-angles to the side on which the same is marked on, an exact shape as it is desired the envelope for this section shall have would be the result. Then again if the solid block as last described be cut through vertically on each dotted line as shown for this section, where these lines of separation would occur on the line of the profile which shows on the face of the diagonal vertical plane the point of intersection of the miter occurs for that plane both ver¬ tically and also the position of its extreme end on a horizontal plane. All the foregoing also applies to the narrowest projection of this block for the section number 6. The manner how to determine the correct relation and its shape so as to correspond to the section number 5, is as follows: All the dotted lines of section number 5 being carried to the miter line S to A from the point of intersection of each and every line drop lines at right-angles as shown cutting the line S to N of 6, and extending below this line precisely the same distance as the same corresponding line extends below the line S to 0 in sec¬ tion 5, where this termination of the lines occursfis the true position of the outline for the profile of section 6 for that particular point as developed by the foregoing operation for each line. Through the points thus found draw the outline of the profile as found, whicn is shown so done in the drawing, each point being numbered corresponding to the profile of section 5. The position of the lines as shown gives the positions of all the points in the pro¬ jection 6, or, in other words, they give their location on the horizontal planes of this profile. This much completes the description of the Fig. 109 and gives all the data for the development of the stretch-out of both sections, and also their miter lines where they join at line S to A. The Fig. 110 gives a still fur¬ ther exposition of the various changes that occur when the outlines of pro¬ file of the section number 5 is presented to the view at different angles from that of the end view of this section. Number 1 of Fig. 110 correspond to 5 of Fig. 109, and is so numbered in Fig. 110. The plan is also shown. Now 118 CORNICE WORK MANUAL let it be assumed that the entire section 1-5 of Fig. 110 is swung around on a horizontal plane with line C' S' as center or pivotal line so that the line 0 to S would be at right-angles to the line S to C, as pre- I / Q \ X . / r- k— \ \ i ———— t / / / * / 5' ■" 6 7 8 9 10 11 ia Id - / ✓ / tL / 4 / A -- / / ♦ 4 4 4 - # # # ____ » « f L. —-—-- ■ • 1 1 r— - — % \ 14 o 15 1 an / DO on A 0 cL _ ui B J) Fig. Ill sented in the plan view after this change has taken place. The miter Im5 in this new position, or rather the vertical plane of the same if viewed from the same point as the vertical plane of section 1—5 is viewed from in the CORNICE WORK MANUAL 119 on a horizontal plane with line C' S' as center or pivotal line so that the line C' to S would be at right-angles to the line S to 0, as presented in the plan view after this change has taken place. The miter line in this new position, or rather the vertical plane of the same if viewed from the same point as the vertical plane of section 1-5 is viewed from in the drawing, will present the true outline of section 2-6 or 6 of Fig. 109. It will be seen in this view that none of the vertical lengths of any of the proportions of this section are changed in the least, but that a corresponding change has taken place in the aspect of all the horizontal distances of this figure 2 6 from those of the outline of section 1-5. This much proves and establishes the correct outline of section 6 of Fig. 109, and gives the true outline and length which the envelope or stretch-out of this section must be made. The true outline that the plane presents where the junction or miter occurs between the two sections 5 and 6 of Fig. 109 has been de¬ ducted from the foregoing and is fully shown by the outlines of number 3 of Fig. 110. The foregoing descriptions of these simple geometrical evolu¬ tions are imperatively necessary to be fully understood by the student as they are but simple step-stones to the more complex and difficult problems to be mastered in the development of shapes further on. These principles once learned, a great stride has been accomplished by the student toward the rapid and easy solving of the most difficult problems. The next step to be taken is to measure up the profile of section 5 of Fig. 109. This measures from point 1 to 41, 30J". Now instead of allowing 2" lap at the top of the crown of this section, allow only 1". This will allow of using 30" wide iron for these sections. This has been done in this case and is an instance where the practical application of some of the hints given be¬ fore come into play in regard to the saving of material and of adapting the design so that the least expensive size of material may be used to fulfill all the requirements as demanded by the design. Draw the line A to B of , Fig. 111. Divide this into as many divisions as the profile of section 5 of Fig. 109 demands; make each point thus drawn to correspond precisely as it is on the outline of section 5. The longest line to be drawn at right- angles to line A B of Fig. Ill need be no longer than the distance from point A to 0 of section 5 of Fig. 109. Then the distance between the line A B to line D E is 22" only, as demanded by the plan Fig. 103. As the end of the section B of Fig. 89 shows a flat surface only, this is, as a mat¬ ter of course, shown by a straight cut or line only on the stretch-out by line D E. Next draw out all the lines for each point as marked on the line A B of Fig. Ill from 1 to 41. The distances that these lines are apart from each other are, as a matter of course, determined by the dispo- 120 CORNICE WORK MANUAL sition of the corresponding points as developed by the'divisions on the pro¬ file of section 5 of Fig. 109. The lengths that each and all the lines have out from line A B of Fig. Ill are all correspondingly given for each and ev¬ ery line in the space between the line S to'O and the miter line S to A of Fig. 109, and are each transposed to the corresponding line of Fig. Ill, thus Fig >113 establishing the true length of each in that figure, as for instance the line 14 of Fig. 109 has the same length in Fig. Ill, etc. After all the respec- CORNICE WORK MANUAL 121 122 CORNICE WORK MANUAL tive distances are so transposed and established on these lines of Fig. Ill, draw a free-hand line through the points thus found, and the miter line for the junction of the section 5 of Fig. 109 with the section 6 of the same figure is done. This kind of miter is sometimes termed by cornice makers an inside right-angle miter. The stretch-out of section 6, of Fig. 109, measures 26^-"; this can also be made out of the narrower material, namely, out of iron 26" in width. Draw the line A to B of Fig. 112. Divide this line into an equal number of parts as the line of the profile of section 6 of Fig. 109 shows, placed the same as they are shown by that figure as to their proper and relative posi¬ tions on line A B of Fig. 112. This has been done. Obtain the length for all the lines from the space between the line S to N and the miter line S to A of section 6 of Fig. 109. These distances transposed to their proper corresponding lines of Fig. 112 establishes the miter line for this section to the section 5 of Fig. 109. Draw a free-hand line through these points as found and the miter line is done, as shown by line X to X' of Fig. 112. The next consideration that this section demands is the development ot the mitering or joining of the same with the turrets, as shown in Figs. 89, 90, 92 and 102. For this purpose draw a parallel line to line A B of Fig. 112 just 11" apart from the same; this last drawn line will cut this section at right-angles and at the extreme point of where the circular turret cuts this section vertically. This line is shown in Fig. 112 by line C to D. I have qpt put this line in its strictly relative distance away from line A B, but instead have given the distance in figures as it should be in this case. This much is as far as the development for this section can be gone on with until the necessary drawings are first made showing the line of contact of the same with the turret. The Fig. 118 gives this point in full. In this figure is shown a complete outline of one of the turrets as far as is necessary to show the position of the profile of section 6 of Fig. 109 and also the plan of the turret. It will be noticed that the spiral flutes are not shown in the drawing at all. These we will leave out of consideration at this stage altogether as they are intended to miter on to the face of the more important members of this section of the cornice and also to the tur¬ ret. I will reserve them for a special treatment further on. The following are some of the main preliminary details of this draw¬ ing, Fig. 118. The line A to B shows the wall line; to this is connected the line C of plan, showing the relative position of the turret to the two faces of the wall in the plan. From a to b shows the outline of the entire profile of the section 6 as it shows in elevation to the turret. This outline CORNICE WORK MANUAL 123 is divided into spaces, numbered as shown, and is correspondingly trans¬ posed to the stretch-out, Fig. 112. From the points or spaces that are markod on the profile, dotted lines are carried to their respective relative points of contact with the turret as shown in the plan. The entire prob¬ lem to be solved may be stated as follows: The cornice is a horizontal molding, as the profile 6 of Fig. 109 shows, fixed in position against the wall line A to B. This molding is cut by the circular turret vertically, the outline of the turret being in outline partly straight and partly composed of various curves and moldings as the outline of the base of the column in Fig. 113 shows. The horizontal section thus cut vertically by the turret joins or has its line of contact with the turret at the greatest depth into the body of the moldings at the center line of the turret vertically, as shown by line C D of Fig. 113, and as a consequence the horizontal section partly miters or joins on to the body of the circular shapes of the members of the turret, partly in front of the center line and out from the wall line of the building, and also partly in the rear of the center line which, as a matter of course, places this part of the cornice closer to the wall and join¬ ing or mitering to the receding part of the circular turret up to a point where it joins on to the wall itself. It will be noticed that all the differ¬ ent members of the entire design, Fig. 113, are placed in strictly correct re¬ lationship to each other,as the plans and elevations, as given before, demand. The operation of developing this problem is as follows: First draw the wall line A to B; then the angle from line A to B to 0. Then draw the elevation of the turret itself, placed in its correct position as is shewn in Fig. 118. Draw in elevation the outline of the profile of the section of the cornice as demanded by 6 of Fig. 109. Some of the main outlines of the principal moldings and turret may now be drawn in plan, as shown in drawing. After the foregoing has been done the real work begins of ob¬ taining the data for the development of the stretch-out which miters on to the turret. The first step to be taken now is to divide the outline of the profile of the horizontal cornice into the most suitable number ’of spaces, which will do to lay out the desired stretch-out; this has been done, as the drawing fully shows for this case, numbered from a, 1 to 27, for the first set of spaces, and from 1 to 11 and b for the second set. The stretch-out is the same for this profile as it is for number 6 of Fig. 109, with the dif¬ ference that the miter line that is to be developed has to conform to the circular shapes on this end instead of uniting to another molding as it does on its other end to the miter line of section 5 of Fig. 109. The line 0 to D of the stretch-out, Fig. 112, is shown divided into the same number of spaces as the profile demands and is also numbered to correspond with the same. It will be seen that the profile miters against the circular part from 124 CORNICE WORK MANUAL 1 to the 28 only; the balance of the divisions miter against the circular moldings down to space number 8. From this point down the molding of the turret again assumes a vertical position as far down as the lowest break or bend in the profile occurs for this section. On the upper part of the column of the turret is also shown how the section 6 appears after the same is fitted to the column, viewing the l?ne of contact from the left end of the building or the reverse side. In develop¬ ing the parts that occur on the left-hand side of the gable cornice the same operations as done for the right-hand end are used to develop the different sections, only with the difference that they miter to the reverse from those that are shown by the Figs. Ill, 112 and 113, and will have to be done ac¬ cordingly when they are gotten out and at the same time they will have to be made to the lengths and measurements horizontally as their respective places, into which they are to fit, demand for them to be. The actual lengths for each space and line used to develop the stretch-out are found in the following manner. I will describe the entire operation to obtain the data for one line or point only, for as all the lengths of the remaining lines are found in the same manner one description will answer for all. In this case, point number 1 of the profile has been selected. The circle numbered 1 is the plan for both the upper column and also for the part marked number 8 or part of the outline of its base. As has been no¬ ticed, the part of section 6 from point 1 to 23 miters on the column and as a consequence all the connecting dotted lines shown for these points in Fig. 113 end on the plan line of the same, thus establishing the actual lengths for all these lines. The line X to X' is drawn at right-angles to these lines, being the farthest point that the circular moldings of the turret cut into the body of section 6, and as a consequence this line is shown on the stretch-out, Fig, 112, by line 0 to D, and is the line from which all the distances and points that make up the outline of the miter line for this part are set out from to establish the correct relative position and lengths of each and every line in this problem appertaining to the miter line of tho stretch-out. Now for the point 1 of profile: connect this point, as shown by the dotted line, from point 1 to 1' of plan line; then the distance established on the line thus drawn between line X to X' and the point V of plan line is to be transposed to the line 1 of stretch-out, Fig. 112, using line 0 to D as starting point, and the miter line as drawn is the termination of its length. The foregoing gives every move that is needed to work out each of the fol¬ lowing lines of the section 6 from points a-1 to 23, as all the foregoing miter lines have their ends terminate at the vertical circular wall of the turret, as shown by the circle 1 in the plan of the same in Fig. 118. It is CORNICE WORK MANUAL 125 understood, as a matter of course, that the measurements of the lengths of the different lines vary according to the planes and different positions that they are located in, horizontally and vertically, but at the same time all end at the same plane line. This is all shown in the drawings. The points 24 and 25 are the two which recede the farthest into the body of the stretch-out, as shown in Fig. 112. This is caused by reason of the part 2', of Fig. 113 : projecting out, and in the part of section 6, as a consequence, this is shown on line C to D of the stretch-out, corresponding to the distance shown at line X to X' of plan. The two points, 26 and 27, miter on circle 1 of plan which is the same as number 3 of the outline of the base of turret to which these two lines join. The receding curve of the base is divided into as many corresponding planes as the profile of the cornice is divided into parts for the section from 1 to 11-b. This is shown by the line 1 to 8, and corresponding planes at right-angles to the same, cutting this part into horizontal planes. The plan shows these planes in outline numbered from 1 to 6, and the quarter circles as shown give them in detail for the points 6 to 11 and b. All these points’ of contact are given in the drawing and transposed in their respective correct positions on the stretch-out, Fig. 112. In all the foregoing deductions and operations made use of in the de¬ velopment of this problem, the line X to X' has been taken as the starting line for all the measurements of all the lines and distances as drawn out at full length on the stretch-out, Fig. 112. The circle A of plan has been given to show the relative position of the furthest outside point that the pen¬ dant comes to when the same is in position and finished. The dotted line inward from the outline of the receding curve of the base of the turret shows the line of contact that the section 6 has with the same from a side elevation, or a view at right-angles from that which it has as demanded for this case. This view also gives the distance that the stretch-out has to project forward from the plan X to X' so as to come in contact with the re¬ ceding curve of the base which it assumes at ea^h point where the fixed con¬ dition of the rigid moldings of the section 6 project so as to form this miter or line of contact as demanded by the drawings of Fig. 118. Although the entiie problem is shown in the fiat or on one plane, the operation is the same as if the plan were on horizontal and elevation on vertical planes, these situated at right-angles to the axis of the plan, parallel to the line X to X\ I would advise the student to give particular attention to the arrange¬ ment and grouping of the different sets of lines to each other in this problem. He should not be satisfied until he has thoroughly comprehended each step taken, and made the knowledge, how this problem is solved, his 126 CORNICE WORK MANUAL own. Then he will be prepared to solve the raking or gable cornice mi ter t which joins the other side of the turret, with greater ease and a good deal more satisfaction than if the method used in this problem had not been mastered before attempting to solve the more difficult problem which will be presented by the junction of the raking cornice with the turret further on. The foregoing also completes the entire stretch-out, with both miter lines for the section No. 6, as demanded by the elevation C, of Fig. 89, and also the opposite section D, at the other end, at the base of the gable cornice connected with the turret at that end. The next section in order is the raking or gable cornice. The height of this member, as deducted from the elevations, is 15J-" and 8" wide at its widest part. The profile is drawn out in full in Fig. 114, and is divided into 37 parts as the drawings show. To obtain the data for a miter of this class, draw the angle that it is desired the rake should have, as has been done in this instance in the drawing Fig. 114. This completed, draw or project lines parallel to the top or bottom lines of the profile, cutting the points as found for the proper division of the same, and extend these last drawn lines until they intersect the miter line of the angle desired. This is shown in this case by line A to B. Next erect line C to B at right-angles to line 0 to A. From line C B to the miter line gives the data for the correct lengths of all the lines used in developing this problem. When drawing the lines that cut the different points in the profile, have a line cut at each place where a square bend or break occurs, and also as many as are deemed necessary for the easy de¬ velopment of each curved part when the same is laid out on the stretch-out. The usual way that cutters employ when laying out work of this kind is to first make the drawing on paper and then lay the paper on the sheet of iron out of which it is desired the stretch-out is to be cut, and prick the different bends and places that are to be bent in the brake at each end of the piece used; the same is also done for the outline of the miter line, but close enough so that the correct outline can readily be cut to these marks as pricked. It is of course not necessary that the entire lines be drawn out on the iron, as has been done in the drawing, but for the work on paper I would advise to always do this. The drawing then explains itself at a glance, which would not be the case if it had been only half-done in the first place, and had, perhaps, been laid aside for some more important piece of work at the time which had to be got out at once. Then, when this is finished, if the first drawing is fully drawn out in all its details, it is far easier to take it up again at once than it would be if it were but in¬ completely done, so that most of the work would have to be studied over CORNICE WORK MANUAL 127 again before all the short cuts, etc., would be once more fully understood. Little matters of this kind, if properly attended to in tbeir proper time, often save time, money, vexation and extra work, which in itself ought to be inducement enough to cause the hints to be followed in regular work of this kind. The stretch-out of Fig. 114 is shown fully developed by Fig. 115; the width of the same is 23J"; this allows the use of iron 24" wide for these members. Divide the stretch-out into as many parts as the profile is di¬ vided into, which in this case is 37. The line A to B in this figure corres¬ ponds to the line C to D of Fig. 114. Transpose the length of each line in regular order from Fig. 114 to the corresponding lines of Fig. 115; when so done draw the miter line through the ends or points where the lines end as demanded by Fig. 114, and the miter line for a raking mold¬ ing or, as often termed, a pediment miter, is completed. The manner in 128 CORNICE WORK MANUAL . CORNICE WORK MANUAL 129 which these pieces are best joined together has been described in previous chapters and need not be gone over again in this instance. In Fig. 116 is shown the gable or raking section mitering on the tur¬ ret, as the elevation demands for it in this ease. The first step to take is to draw a complete correct outline drawing of all parts of the turret that are necessary to develop the required data for the development of the shape that miters on to it, as the outline of A, of Fig. 116, demands. This has been done in Fig. 116, as shown by the solid outline drawing of the turret. Also draw the plan lines as shown for all the more prominent projecting parts that occur in the outline of the turret on which the raking moldings of section 7 miter. Then draw the profile and the connecting lines of the same to the angle of inclination that the gable cornice is to have when in position as shown by B and C. Divide the profile B into any number of parts, as many as the person working out this problem sees fit to make use of, or which could be em- 130 CORNICE WORK MANUAL ployed to the best advantage in solving this problem. As will be seen in this instance, I have divided this profile into 38 points or 37 parts. From each point thus determined on, lines are drawn parallel to each other, ter¬ minating each one at the point where its correct point of contact happens to be on the surface of the turret. To ascertain the point of contact of each line as drawn for the profile B, the following method is to be used in this case. First, the part of this figure as described for the profile B so far, gives a representation of how the section 7 actually appears when finished, mitering on to the turret, and in position on the building for this side of the gable cornice. Second, the dotted outline C shows how the profile appears on a plane cut through the section 7 on line C to S. Tha dotted outline n, m to k is merely introduced here to show the relative po¬ sition of the section C or profile 6, described before, to the raking gable section now under consideration. Third, the foregoing being fully under* stood as to the various positions that all the parts have to each other in this design, Fig. 116, assume that the turret has been turned one-quarter, or, in other words, that the position of the line D to E is turned so that it is presented to the view as line D' E', or center line of the turret. Fourth, this view as presented, by reason of such change as described, will place the section 7 in the position as shown by the profile A, presenting the profile B in a vertical plane instead of a raking one, if the elevation of profile B is first swung into a horizontal position before such change is made. The actual operation of changing the position of the profile from its inclined position to that of a vertical one is not necessary to be shown in this case, as if so shown, the great number of lines, extra drawings, etc., would only tend to confuse the student. For this reason I have omitted showing the same in this drawing, but have only shown the profile as it actually appears after such change has been made. In this case it is not strictly necessary that the outline of the profile A is put into any certain fixed position vertically. It could have been shown just as well either above or below the entire design, as in the position in which I have placed it, the object of drawing the same being to show the position which the planes assume, which are projected from the points that the profile is di¬ vided into by a vertical view. The profile B shows planes horizontally. The vertical planes as drawn show the position of each point on these planes as cut by the vertical planes, and also so that by extending them, as has been done in the drawing above profile A and continuing them to where they come in contact, or where they touch the outline of the turret, the actual length that each line has horizontally and also where they come in contact CORNICE WORK MANUAL 13i With the plan lines of the turret, are shown. We now have only to allow for the extra length which is added to all the lines by reason of the pitch, or the inclined position that the problem calls for. This extra length can readily be determined for each line, by drawing lines at right angles to the center line of the plan as the lines a b c d and e give for each curve that length and position of the same at its point of termination. Now whatever distance the^e is between the lines as directed to be drawn and the curve on which the same miters, is the distance which the lines that correspond to these in the elevation must be lengthened or projected beyond the line D E of the turret, in order to show their true length which is to be trans¬ posed on the stretch-out when the final drawing for the miter line is made. To illustrate: the length to be added to the line 2 is from 0 to O' trans- 132 CORNICE WORK MANUAL posed to O', 0" shows the point of the termination at 0"; this establishes the true length of the line 2 of the front elevation. Then again take the line 15; this distance as shown is scarcely perceptible, transposed to where its correct position is in the front elevation it is there shown as demanded. The same operation has been done for all the rest of the lines which miter 'o the upper cylindrical column of the turret. It may not be out of place here to remark that the line of contact as shown by the line from point P to X shows the same on the side nearest to the person looking at it from the front; the line of contact below this point X is on the other side of the cylindrical column and as a consequence is hidden and is shown by the dotted line which the continuation of line P to X. The line C to R, wnich cuts the profile of B, is used as the starling point to take all the lengths for each line as transposed to the stretch-out, Fig. 117, line C R having the same relative distance from the end of all the lines in that figure as it has in Fig. 116 at B. The foregoing description and method to solve this problem is as simple a way to attain the end sought as has come to my notice. There are other methods to solve the same problem, CORNICE WORK MANUAL 133 but they are somewhat more complicated than the one shown in this case and as it covers all the points fully, I have given it in preference. I have only shown in the Fig. 116 how to develop this problem down to line 24, as all the lines up from 24 to line 1 miter to the one shape; that is, the column of the turret is all of one diameter for these lines. In Fig. 118 the development from line 24 to 38 is shown, but to a scale of 3" to the foot, this being larger than the size that Fig. 116 is drawn to and can be more conveniently read owing to the fact that the entire drawing is not so such crowded, as would be the case on the smaller scale. This drawing shows all the features as presented by Fig. 116, only that the parts shown are given more in detail. A gives the section from line 24 to 38 in front view. B shows the same profile for the plan lines. From a to 33 shows the line of contact that this profile has with the outline o! base of pillar of the turret, and farther down, the points for Nos. 34 to 37 would show but are cut away by the curved members of the pendant. All the above as described when the section is in position on the building, viewed from the front, can not be seen from that point of view, and as a consequence, must be shown in the drawing by dotted lines as has been done on the side on which it is located from the center line of this figure. Line K to K' is the center line. In order to show how this problem appears when the line of contact is shown in full, I have simply reversed it on the right hand side of the center line of the drawing. Dotted lines are dropped from the points 24 to 36, cutting the plan and showing the positions of these poinst or lines as projected at their correct line of contact from that point of view, then ontinuing these same lines they end and show the line of contact that they have with the various curves and shapes of the base of the turret viewed from the front, as this view gives it. It will be noticed that this exposition goes a step farther and also shows the different upward corners that are to be filled out underneath some of the moldings. This is not so plainly shown in the drawing on the left-hand side of the center line of this figure. It will be noticed that some of the lines apparently end at the face of some of the parts which they come in contact with, but they again appear underneath the same member down lower and farther into the body of the drawing; notably is this the case with the line 29 and some of the intermediate lines between lines 28 and 29. This is also the case with line 32. All these different features are drawn out in full in the stretch-out, Fig. 119, and there is shown each line in its full minute development, as demanded for this problem. The line L to M of Fig. 119 corresponds to the line L to M of Fig. 118, and is the line from which all the lines for their lengths on the stretch-out are measured; that is, measure from this line to the points as shown in the drawing for the respective length of any 134 CORNICE WORK MANUAL line in this part as the length of the line 35 is from line L 'M to point 35 and the same is correspondingly so transposed to line 35 on the stretch-out. Or the length of line 29 shows first from line L M to 29 then again from point 29' to point 29" where it ends and is so shown on the stretch-out, Fig. 119. As stated before, each line in this problem has received the same minute treatment in all its details, making the line of contact complete of every bend or curve as demanded by the drawings. This problem has been carried to this length to show how it is done in every phase so that the student will be competent to lay out every detail embodied in it ?f he so de¬ sires. But there is one point that I would draw his attention to in this case, which is that in actual work it is seldom that where joints and miter connections occur, which are in any way hidden or in such position that -ET they are not seen, that any too much pains are taken in the cutting out or putting together of such parts. Some cutters, if they had a case such as occurs in this problem, would hardly go to the pains and lay out the pat¬ tern in all its minute details as has been done in this case, particularly so in that portion which miters to the base of the pillar, and which for the most part miters on the receding rear portion of it, and as a consequence, is partly if not wholly hidden from the view when the entire structure is finally put up into position on the building. The foregoing may serve as a hint to the student in cases of this kind. I will leave it to his own judgment in regard to how much work to put into this detail or how much he can safely leave undone and still produce a good job so that the same will pass inspection and be rated as well done by the supervising architect who passes on alJ work done on the building. CORNICE WORK MANUAL 135 XXII. DEVELOPMENT OF DETAILS AND PATTERNS OF THE TOILETS, In the preceding chapter I have given a full exposition of the various methods for developing the patterns for the different miter joints that oc¬ cur between the members of both the horizontal and the raking gable cor¬ nice of Fig. 89. The next members of this structure which I will describe and explain how they are to be laid out in every detail are the turrets that are shown by Fig. 101. In work of this character it is well to have a clearly defined plan how it is intended that every member that enters into the make-up of an entire structure is to fit and be joined to the next mem¬ ber. The entire modus operandi should be fully determined before com¬ mencing the work. This is made necessary by the simple reason that there are several ways of doing the work involved in the structure, as shown by Fig. 101. There are several different and distinct ways for the disposition of the various pieces that compose it; instead of being made out of two or more pieces, members can be made out of one piece only; then the various other points, such as joining the edges of the members together, either to double seam, butt or l ip-joint them, etc. All these points alluded to will be fully treated in the following for this particular case. I will give several different ways that most of the members of the two turrets can be made. The first member or part of either of these turrets that I will discuss will be the vertical circular part between the top of the flange of the pen¬ dant and the lowest part of the ornamental cap, this being the part to which most of the horizontal as well as the gable cornices miters, and is al¬ so the part to which the spiral flutes are fastened, as is shown by Fig. 101, between the molding S S at the lower end and the molding 1 to 2 at theupper end of the vertical circular column of the turret. In the measurements as giv¬ en, this part is shown to LeOJ" in diameter and 2' 7"higli between the mold¬ ings S S and 1 to 2 of .Fig. 101, or as may be considered that part which would show between the square molding A of Fig. 120, commencing at A and connecting at its other end with the round molding A' of Fjg. 121 at B; that is, if the two Figures, 120 and 121, were connected by the column in one drawing. Now the question is, how best to lay out the envelope of this member? One way would be to make it just 2 7" in length and 2' 5|" wide for the circumference, with a half-inch added for the lap for that part which is solid above the part of the cylinder which is set over on the 136 CORNICE WORK MANUAL corner of the wall of the building. Connections could be made with the square flange A' at a, of Fig. 120, and with flange B of Fig. 121 for the other end of the described cylindrical member, and would be one way of doing this part of the work on the turrets. A better and more solid job than the foregoing is shown in the follow¬ ing description how to arrange the different connections of the different parts that are joined to the vertical cylindrical member under consideration. The first point of difference by this method from the one previously de¬ scribed is that the cylinder, instead of being cut off or ending at point a, on flange A' of Fig. 120, is continued downward to point C. This operation adds If" to the length of the cylinder; then at its top end, instead of end¬ ing it at point b of flange A of Fig. 121, continue it sufficiently long enough to provide for enough material, in order to produce the shape as shown in the drawing from point 2 to point d of Fig. 121. The shape as shown is produced by stretching the end of the cylinder until the shape as desired is obtained. This is a comparatively easy matter to do, involving less labor and time than would be required if the first described method were used for this member. The extra length that the cylinder will have, to allow for the additional curved part at the top, is 4J", making the full length of the entire cylinder as described 3' If" long over all. It will be seen that if the method as last shown is used for this member it makes the entire structure considerably more rigid, stronger and simpler, and easier to build. The la¬ bor of producing the curve of the part B of Fig. 121, as shown from 1 to d, involves only the operation of enlarging the end of the cylinder If" all round or 3J" altogether. In order to do this quickly, and at the sami time produce a first-class job, the following method is recommended. Bo all the stretching ovsr a rounding stake whose surface conforms to tee direc¬ tion and sweep that the curve of the section is to have when finished. Commence to enlarge the cylinder from the point 1, doing this at first by easy stages; then as the process of enlarging the curve progresses toward the larger end stretch the same correspondingly more than has been done at the start of the curve. Care must bo taken not to stretch the iron too much at the start, and that the whole operation is done gradually. Feel the way along; in brief, use a little common sense and judgment when doing work of this class. Good results may be expected if the fore¬ going suggestions are followed. It will also be observed that the flanges A' of Fig. 120 and A of Fig 121, by using this method, fit on the outside of the cylindrical vertical sec¬ tion. This is shown for flange A" from a to c and for flange A from 1 to 2. Now, if the general arrangement of this end of the cylinder is or had been made as shown by the other end of the molding A—that is, the cylinder CORNICE WORK MANUAL 137 cut off or ending at b and the section B ending at X at its lower end, the molding A would be the member which would have to sustain the entire weight of all the numbers of tin cap above it, and that without any o lnr bracing than that which its own natural stiffness and the rigidity of the 133 CORNICE WORK MANUAt material would offer against its collapsing or bending out of shape while sustaining the weight. A similar state of conditions would also occur at the other end of the cylinder if the foregoing described method were used to construct the connection at the square molding A of Fig. 120, only in a more aggravated shape in so far as this molding would have to bear consid¬ erably more weight than the other one has. By the foregoing comparison of methods the intelligent workman can easily see which of the two is ihe proper and the better one to adopt for the purpose, and why I recommend the method which is followed for the construction of the parts as described. The lower cylindrical part as from L to k of Fig. 120 is to be made as the measurements demand for it to be, as shown in the drawing; namely, 7” diameter and 10J" high when done. If the workman is so disposed, he may also make this part of the turret after the same general directions that have been given for the larger cylindrical part of the turret. As is easily seen, this section from S to K is precisely similar to the foregoing described sections, with this difference only, that it is somewhat smaller. The reasons why I have made the same project down into the pendant as far as shown in Fig. 120 will be fully explained further on when a descrip¬ tion of the pendant is given. The next step will be to give the best way to construct the various moldings that are used for these turrets, such as the moldings A' and B, of Fig. 120, and A of Fig. 121. One way often used is to cut out the top and bottom circular disks for a square projection, as for the molding A', of Fig. 120. These disks are cut out with sufficient allowance for flanges both at their outer as well as inside edges. Then when these flanges are turned as demanded a plain strip made of the width the flange is to be is soldered to the outside edges, and this completes the molding. D, of Fig. 120, shows the foregoing described disposition of the different parts fully. The foregoing involves a considerable amount of work which cannot possibly be avoided if some such method as the above described is made use of to construct these parts of the turrets. I may add that the method de¬ scribed is about the only one that cornice makers generally know of by which to do a job of work of this class. A far easier way, which also makes a neater and stronger molding than those produced by the first described method, is as follows: Take the square molding A D, of Fig. 120; make a straight square bent piece of the same width as tire stretch-out and equal in length to the circumference that the extreme outside edge of the square molding is, or this piece can be cut in two parts making each half the length that the circumference demands, with an allowance for laps added, which are required to join the two pieces together when they are finally CORNICE WORK MANUAL 139 140 CORNICE WORK MANUAL The stretch-out or width that the pieces are to be made is shown by A of Fig. 122 which shows the end view of the pieces made out of one piece A' of the same figure gives an end view of this molding if it is made out of three pieces. This is clearly shown in the drawing. When getting out the two pieces which are needed to form the molding as demanded by the draw¬ ing in Fig. 120 for the molding D A', care must be taken that due allow¬ ance is made for sufficient material on the inner curve for the burrs or flanges which are to be turned on the molding, as shown in the drawings for this part, A' at a and b of Fig. 120. All the foregoing preliminaries provided for, bend the strip to shape, as shown by A of Fig. 122. The shape of the sections done as far as described would be straight, as shown by one of the strips at B, which is only partly formed to the shape desired. The manner in which the shape is produced, as in Fig. 122 showing the molding when formed up, will be described in the following. Fig. 123 shows one of the common crimping machines used in nearly all shops, mainly for crimping the small ends of conductor pipes, etc. Most of these machines have an attachment consisting of a pair of beading roils at the outer ends of the spindles: these rolls, as a matter of course, in Fiji 1ZZ. order for the machine to be suitable to accomplish the following operation, must be taken off from the spindles or shafts of the machine and the shafts themselves cut off so that the crimping rolls appear at the ends as shown in Fig. 123. If a machine of this kind is at hand, arranged as des¬ cribed, we may now proceed to form up the moldings in the following manner: Place the square-bent piece with one of its inner edges between the crimping rolls; turn down the set-screw c, Fig. 123, but slightly, then run the straight square- bent molding through, causing the side thus CORNICE WORK MANUAL 141 treated to become slightly corrugated. One side done as described, reverse the molding and do the same for the other side or edge. The foregoing operation repeated two or three times, but each time with increased pres¬ sure on the rolls will cause the molding to gradually assume a circular shape as demanded for the section D, of Fig. 122, and the molding D A', of Fig. 120. The method as described can also be used on larger work than is required for this case, and is in the opinion of the writer a cheaper and neater way of doing the work than the other. There are occasions where this method could not be used, but where the crimped appearance of the surfaces does not matter or affect the general appearance of the work, I would advise to use it wherever applicable. In the case of the molding D A', of Fig. 120, this plan of obtaining and producing the cur¬ vature of the sections of which the molding is composed also adds greatly to its rigidity and improves the appearance of the whole structure of the turret. At C, Fig. 122, is shown by a plan view the quantity that has to be cut out of this molding in order to allow it to fit into its proper position against the corner of the wall when the entire turret is completed and put in its final position on the building in connection with the horizontal and gable cornices. The burr or edge 0 O', Fig. 122, is then turned, which completes the square-cornered molding D A' ready to be soldered to the cylinder E, of Fig. 120. The reason why the action of crimping the edges of the straight-out pieces causes them to assume the circular shape, is the corrugations as formed by the crimping machine gathering the metal to¬ gether at the edges more than they do nearer to the outer flat surface of the moldings, and thus, without stretching the metal, causing them to form in the circular-shape as desired, The next molding in order would 142 CORNICE WORK MANUAL be the round-face mold, as shown by B, of Fig. 120. Moldings of this kind are often made in two parts and are joined together at the seam in the center, as shown by seam X X, Fig. 120. If this method is used to con¬ struct the molding for this case, two circular flat disks of material will have to be cut for it, the outside diameter being equal to twice the distance from center line F to point R. The inside disks, which are to be cut out of these again, are to have a diameter of 7". From this is to be deducted the quantity that is to be allowed for the edge or burr ab t t', or the inner edge of the large disks. Then after the pieces of material are cut as wanted, the rounding outside edges are to be bumped or raised to the de¬ sired shape. The Figs. 124, 125 and 126 show three very desirably Fig. 124. Fig. 125. Fig, 126. shaped raising hammers used for this style of work. These styles of mold¬ ings can also be made by the same general method as described for the flat-faced styles, the only difference being in the shape of the outer face of these moldings from the square or flat variety as the mold D A' of Fig. 120 is shown. The foregoing description in every detail is also applicable to the molding A, of Fig. 12 L. As to the manner of producing it need not be repeated again, the only point of difference being that the measure¬ ments of all the diameters are somewhat larger than the molding B, of Fig. 120. I will also describe another method to produce these styles of moldings. The modus operandi is as follows: Cut a flat strip equal in length to the circumference to the outer edge of the molding, and equal in width as the stretch-out of Fig. 127 shows from 1 2 to 3. This strip is fastened together, forming a wide band or hoop, and beaded to the desired shape in an ordinary heading machine, for which special rolls have been CORNICE WORK MANUAL 143 made to suit the style and shape of the molding desired. Fig. 128 shows a beading machine made for this purpose. As will be seen, this method does not allow for any moldings that have considerable Figi M depth, or if they are very wide in the face, but for certain special styles and sizes it is an excellent one, and is about as cheap and easily arranged a style of machine as could be devised for the purpose. Especially is this true in regard to the case of accomplishing the inter-changing from one set or style of rolls to those of another profile, as the circumstances may demand for different designs. If a half a dozen different sets of rolls are prepared and made to be used especially for this style of machine, each set having a profile conforming to a standard style of moldings, I would venture to assert that this would be sufficient for all ordinary requirements of any small cornice shop for this special line of work, and would be a great con¬ venience besides being a material help in the getting out of work rapidly and economically 144 CORNICE WORK MANUAL For more elaborate curves and designs, if it is desired that they b@ formed to shape by machinery, I would recommend some of the more elaborate and special molding machines now on the market. These ma¬ chines are, as a matter of course, more costly than the kind described and illustrated to some extent by Fig. 128. In connection with this description of some of our American-manufact¬ ured machines for curved moldings, etc., descriptive illustrations and special designs of which can be obtained from any cornice-maker’s tool supply house, I have introduced two views of a machine made in Germany and used for this class of work. Fig. 129 of this machine presents somewhat the appearance of a large beading-machine. By using a set of gauges as shown by Fig. 130, some very fine moldings can be produced. The machines are adapted so that they can be adjusted vertically, horizontally, or to any radial adjustment Fig 129 , that may be necessary to meet any requirements demanded from them for different styles of moldings. As will be seen by examining the two figures, Cornice work manual 145 these machines do not differ to any great extent from our beading or swaging machines, excepting in the gearing, and also that the standard is especially designed for a machine of this character. Different styles of rolls are at the foot of the standards in both views, showing to some extent the range of profiles that moldings can be made to by these machines. Fig. 130. The molding A, of Fig. 121, as shown by the Fig. 131, is produced by the method as described for the molding B, of Fig. 120. In the description of this last-mentioned molding the size or length of the band is given as equal to the diameter of the outermost point of the circular face of the molding. If this direction is followed a safe allowance is provided for, an 3 in no case is there any danger of the molding not having enough mateiial so as to be long enough to go all the way around the vertical circular part of the turret against which the molding is fitted and fastened. In the course of the operation of beading or swaging th j bands to the shape as the profile demands of each, there occurs consider¬ able stretching and at the edges of the material some compression by a machine as described. Just how much stretching there occurs by the operation is a matter that is best studied and learned by actual experience* 146 CORNICE WORK MANUAL Different shapes and kinds of material vary somewhat as to the exact de¬ gree that the metal stretches, but it is safe to assume that it does stretch some more or less. The safest method is to make allowances for enough material, so that when the shape desired is produced no shortage occurs; how to do this has been shown. The next members of the turret that I will describe are the sections C, of Fig. 120, and B, D, Eand F of Fig. 121. I will assume that instead of continuing the circular piece as shown by the projecting vertical pa^t k, of Fig. 120, so that it would, by flanging it outward, form the curved ac¬ tion C in one piece, it had been determined to make the curved section C, from a to b separate and independent of the others. This bein^r determined, the next thing in order is to develop the pattern for the enve¬ lope of a form which by proper manipulation and treatment will produce the shape demanded by 0, of Fig. 120. There are two other sections of the same general style as C, of Fig. 120, in the make-up of these turrets, namely, the sections B and D, of Fig. 121. The section E, of the same figure, may also be classed under the head of flaring curved moldings, if it is made in two parts. A detailed treatment of this section will be given further on. If the cutter has to lay out a pattern for an envelope of a curved moulding, as the section C of Fig. 120 shows, the first step is to get the correct radius for the sweep of the patterns. If the same is to be raised or stretched to the shape and curve as shown by the drawing, by hand, that is, by hammering out the correct curves, the outline of the frustum of a cone as ne*eded for this problem must be of a size so that it will have a point of contact with the curve desired, as shown at the point X. This point of contact is precisely in the center of the curve a to b. Then the radius, as shown by the dotted line from a to c', must be an equal distance away from the curve at both the pdints a and b, as is shown in the drawing, This disposition of the angle of inclination of the outline toward the center point C' gives the frustum its proper shape for a prob¬ lem like this. It will be seen by this disposition of the angle that the frus- CORNICE WORK MANUAL i4f tum will have when aone, both the top and bottom end require an equal amount of stretching to produce the curve desired. This would not bo the case if the angle were at any other degree and, as a consequence, it is cor¬ rect. From point X the slant height that the frustum is to have depends on the distances that the curve has from the center point X to the points a and b, with an allowance for the required lap above point a, as shown in the drawing. The correct length and position of the required radius deter¬ mined, the envelope can be drawn as shown by the sweep and outline for it from center-line at R out to G and again ending at point L, being the en¬ tire stretch-out of the required envelope of a frustum of a cone as the prob¬ lem demands. When the pattern is cut out, allow for locks or laps; then form the flat part or parts (if made out of more than one piece) to the shape of a frustum of a cone. Fasten the same together by whatever mode the fastening is to be and proceed to stretch the two edges to the re¬ quired curve as the drawing shows. This is done by first drawing and stretching by hammering the material with the proper tools on the inside of the cone. The mechanic who is doing a piece of work of this kmd, as a matter ol course will understand that the cone, in order to have the round¬ ing shape as the curve from a to b demands, must not stretch the iron as much at the point X as he does when he gradually'works toward the t?/o outer edges. A few general hints may be added here for the guidance of the workman on this class of work. These are: Don’t be in a hurry at the start, but make haste slowly. Do not pound the material too hard when an iron stake is used to stretch the material on; and last, but not least, try and work evenly. Have the blows of the stretching hammer fall on the iron in such a manner that the entire surface presents a fine and finished appearance when the work is done and not, as some botchy workmen turn out work, with the surface all dented and bruised where, in some places, they did not strike with an evenly balanced blow with the hammer, and in other places where they did not hammer the material at all. Next turn the edge r as demanded and this part is done, ready to be put into its proper place on the turret. The directions given for the section 0, of Fig. 120, also apply in every particular to the section B, of Fig. 121, in order to produce the same as demanded by the drawings. In this case I have added an additional allow¬ ance for the straight-down part from point 1 to 2 for this curve. The ra¬ dius for this single section of B is shown from points 8 to 4 and center point at C\ H shows a broken view of the envelope for this frustum of a cone. For the section E, if it is determined to make it out of two parts. CORNICE WORK MANUAL with a seam at line a b, the radius from points X, 0 to the center point C is the correct length for these parts. L shows part of an envelope for ono Scale 2 " to the Foot. CORNICE WORK MANUAL 149 of these parts drawn out as wanted for this method of producing one-half of the shape of section E, Fig. 121. The section E can also be produced by forming up a straight cylinder equal in diameter to the narrowest part that this section lias, as from points b to d. The distance from points X to X' is the length of the re¬ quired material for the curve from points K to y, and is the required width or height that the cylinder would have to be made to in order to make the required shape as section E calls for. The two ends of this cylinder form the point d to the point X for its upper end and from point d to X' for its lower one are to be flanged and stretched in the same manner as described before for this kind of work; also make allowances for proper connection laps, at each end where this section fits to the adjoining sections and parts of the turret. The next style of molding to consider, which w.e have to develop for these turrets, is the section D of Fig. 121. As will be seen, the curve of this section is outward instead of in ward,as the foregoing described sections were. In order to strike the correct radius for a molding such as this style requires, always have the two points at an equal distance away from the curve, as at points k and 3; then instead of having the radius line in con¬ tact at the center of the curve at the outside, as at point S, if there is considerable sweep to the curve, as from points k to 8, have it cut at the curve somewhat to the inside, as shown in the drawing. This will save, in some instances, considerable stretching or raising and is especially appli¬ cable in this case, as this section D has considerable curve between points k to 3. Another point: when forming up work of this style of molding curving outwardly, as section D presents, do not use the bumping-hammer too much, but rather try and use a round-headed tool for a stake and if possible try and form the shape by using a wooden mallet for this purpose. It will be found, that in a great number of .instances this method is sufficient to produce the desired shape, and, I may add, that it is a far more expeditious way of doing the work than with a raising hammer, providing that the work in hand can be done in this manner. I would advise, when¬ ever allowable, to use the quickest way of getting there. It may at times be necessary that recourse be had to the raising-block and hammer to sink or bump a curve. Whenever this is necessary, do so. The section F, of Fig. 121, will be in the shape of a flat band or hoop of the proper size. This section is so simple that I do not deem it neces¬ sary to give it any particular description at this time. M and N are the stretch-out for the three sections, D, F and B, if they are all three made in one piece and are to be formed up to shape by using a circular molding 150 CORNICE WO UK MANUAL machine for this purpose. The angle that the outline has for a frustum of a cone, needed for the production of a molding, or a shape as the curves from point X to X" have, is shown by the line from point U to center point W. This at the same time gives the length of the radius and also the way of averaging the pitch of the angle that it passes through the profile of all the moldings of this member. In contrast to this last described angle that the frustum of a cone has for these sections D, F and B all combined in one, notice how much difference there is from it in the pitch of section I) alone, as from point k to the center point at li. This latter divergence is caused by the reason that if one section only is done, the radius and pitch of the cone must conform to a degree of outline for it, which offers the best possible shape for an easy attainment of the desired curve as demand¬ ed, so that the curve can be produced from a cone as developed by the least amount of labor possible. On the contrary, when a number of sections are all made out of one piece, the pitch of the outline of a cone must be aver¬ aged in order to allow all the different bends to be obtained from one piece; and that the material while undergoing the process of developing the various bends, will offer the least possible amount of resistance. This point is fully covered. In the disposition of the radius and angle line, as shown by line v to w of Fig. 121, for this case, and which may, with a little modification, be 'applied to almost any problem in this line, it will be well for the student to make himself thoroughly familiar with the principles governing this class of moldings, as given in the foregoing. The ornamental hemispheres ou section E are to be trimmed and fitted to the section; each one of them is to be soldered to its correct rela¬ tive position, as shown in the drawings. Another curved molding for this turret is shown by the section I, connecting and serving a3 the base upon which the large ball is fitted to the cap of the turret. P gives tte envelope; make its outside curve equal to the circumference of the bottom end of I and the top curve equal to the top of the column I. At point y is shown; the center point of the radius by which the envelope P is drawn. At poinfi X is showm the other end of the outline of the cone from which the curved column I is developed. The raised piece e in the drawing is cut in the flat, equal in diameter to the length from point a to b of the raised disk c. When a flat circular piece has been cut as directed, the rounding edge is then hammered or raised as the disk shows. When so done, it is to be neatly trimmed and fitted to the center on the top to the cap of the turret and securely soldered to it. CORNICE WORK MANUAL 151 The next section which I will describe is the cap of the turret. As will be seen in the drawing, Fig. 121, the outline of the cap shows that it is not exactly (by a side view) a true hemisphere, but somewhat less, as shown from the center point 1 to the base line 2 to 3, in Fig. 121. One quar¬ ter of the plan is shown from point 4 by the quarter circle to point 2. The cap is to be made out of eight pieces; the plan is so divided by the line O to t. In order to develop the pattern for a stretch-out of one of these parts, proceed as follows: Divide the line 1 to 2 into any number of equal parts. This has been done in the drawing in six equM parts. Drop lines from points to base line 2 to 3. From where these lines intersect the base line 1 to 2, using point 0 as center, draw the curv s abode. The foregoing description is all that is necessary for all the data required to lay out the pattern for the various sections which are need-d to complete the cap. Fig. 132 shows one of the required sections fully devrloped. To lay out a pat¬ tern, as shown by Fig. 132, proceed according to the following directions: Make the line 0 to X equal in length to line 1 to 2 of the outline of the oap of Fig, 121. Divide 3me 0 to X into as many equal parts as the line 1 to 2 of Fig, 121 haa been divided into. Next, draw the straight lines a to e at right-angles to the center line 0 to X, and equal in length to the cor¬ responding curved lines shown ^ them in Fig 121. These lines evenly divided, as shown, and connected by the curved outlines 0 to t and 0 to 3, and also points S and t connected by the curve line t, X and S, using 0 as center for the same, completes the outline for one of the eight sections for a cap of one of the turrets, Figs. 101 and 121. The extra length that is added to the width of these sections by reason of transferring the length of each one of the curves of Fig. 121 to the straight transverse lines of Fig. 132, or in other words, the fact that the length of the straight lines of Fig. 132 have been made equal to those of the curves in the section of the plan of the cap of Fig. 121, causes the pattern to have a greater width than a strict geometrical and an actual measurement of the surface taken on. the outlines that these plans would show, as represented by plan curves of Fig. 121. The reason these sections are made wider is, because, in the opera tion of raising or bumping and forming it will be found that on curved work there is some liability of the metal not stretching at all and also of the edges fraying or becoming rough by the action of the hammering, etc., making it necessary to trim the edges before joining the sections together. An extra allowance of metal is also shown for laps on the edge 0 to S. The four dotted cleats are left on every piece which serves to hold several of the sections together when more than one is fastened and hammered up to shape at the same time. The bottom piece having these cleats only, 152 CORNICE WORK MANUAL o then two or more sections are laid on to it, the cleats turned over and fas¬ tened down; thus they serve to hold the pieces together while the operation of forming the sections to shape is in progress. The sections can either be double-seamed or lapped as the workman may determine when construct¬ ing these members of the turrets, but whatever method is adopted, this must, * as a matter of course be allowed for when the sections are laid and cut out. Figs. 133 and 134 show two old-style appliances in use many years ago to form and block up raised work in cornice shops. In connection here it may be stated that similar dies and blocks are still to be. found in many cornice shops throughout the country, these establishments finding : Mia Fig m. CORNICE WORK MANUAL 153 it cheaper to use some such contrivance as Fig. 133 for the purposes stated* than to invest in the rather expensive and more elaborate machines made for these purposes. The two views, Fig. 133, may be briefly described: The top pieces or plunger part and the bottom dies or negatives are made from some tough and enduring kind of hardwood. The shape that it is de¬ sired the molding shall have, to which the material is to be formed, is du¬ plicated in the profile and curve that the wooden plungers and bottom dies are made to. The shanks at the bottom part are shaped so that they can be conveniently fastened to any bench or block which has a suitable hole cut out for it, so as so allow the shank of the bottom die to fit into it, and serve to hold the die securely while the workman is manipulating the upper die on the metal placed between the wooden tools, where it gradually as¬ sumes the shape desired by reason of the forcible pressure imparted to the upper plunger by means of blows struck with wooden mallet, as shown. The block and die, shaped as shown by the view b of Fig. 183, would nearly do for the forming to shape of the sections needed for the cap of Fig. 121, and of which Fig. 132 presents a fully developed sec¬ tion in the flat. I will next describe how to lay out the fluted sections of the pendant of which a part view is shown by the dotted lines of Fig. 120. Fig. 185 gives a complete plan view, showing how the various parts that the pendant is composed of are fitted and placed to each other; it also shows the correct position that the pendant has in relation to the wall-line of the building, as shown by P, 0 to S in part A of Fig. 135. The center Jine, A to B, divides the plan view A from the part B, which is a complete 154 CORNICE WORK MANUAL elevation of the pendant, an outline of which is shown by the curve 1 to' 10. By part C is shown a complete half of the stretch-out of one of the sections, from point 1 on center line A to B to point 10 corresponding to the same length as the curved outline of the elevation B. The dotted line shown near the solid curve of the outline and connected to it at all the points from 1 to 10 by short solid lines, gives the extent of the curve the sections have throughout their entire length. At each transverse solid straight line, as shown by the stretch-out of part C, is also shown by the dotted curves at each line the amount of curvature the section has at this particular point ai which the straight line is placed. These straight lines, as described, have the same length that the dotted-line curves have; in fact, their length is deter¬ mined by these, and is so shown in the drawing. At the points thus deter* mined, the curved outline of the sections cuts and forms a continuous line from the top to the bottom of each section, as from point 1 to 10 of the outline as shown in Fig. 135 for part 0. In the plan view of one of the sections is shown with all the profiles of the points drawn out which are to be cut in order to enable the pendant to miter against the corner which cuts into the pendant at that point. The line that the cut has through the sec¬ tions is shown by the wall-ltne S, C to P. The full development of the stretch-out of one of the?e sections is shown by D. The dotted line shows the course which the cut has when the pattern is in the flat, before it is formed to shape as demanded by the outline of the pendant. The deduction and transferring of the distances from the plan view to the stretch-out is so simple and so plainly shown in the drawing that no further description is needed for this point. There being two sections which are affected by the position of the pendant which it occupies in relation to the corner of the brick wall, the relative position that they have, both to each other and to the wail, is shown in plan, part A, of Fig. 135. This merely makes it nec¬ essary that the section adjoining the one shown by D should have a corre¬ sponding piece cut out of its surface as the piece D has, only to the reverse side, as shown by the section D. This completes all the necessary descrip¬ tions of the method of cutting out the sections that are needed to make up the complete pendant. Each one of the sections can have a small burr turned on one side, to which the corresponding raw edge of the adjoining section can fit, then they can be soldered together; that is, the foregoing is to be done after the sections have all been formed and hammered to the shape that the profile of the pendant demands each section should have. CORNICE WORK MANUAL 155 156 CORNICE WORK MANUAL Referring again to the vertical cylinder that projects down into the pendant, as shown in Fig. 120, if the cylinder has a solid bottom at the end K which makes*the cylinder stiff and solid, it is easily seen that it offers the best form of a stay, and a good solid background on which, when it is made up complete, the pendant can be fastened. This secures for the pendant a means to stiffen it all around where the bottom of the cylinder touches the sections inside, and also from where an additional fastening for the sphere L can be made, independent of what it would have if it were soldered only to the pendant at the end of the sections at X of Fig. 120. Another point, if it is decided that the 7" cylindrical and the curved section C of Fig. 120 are to be made out of one piece, it is necessary to older the molding B to this member before fastening the pendant to it. If all the parts so far described for the turrets are made up and ready to be put together, a good plan would be to use the following order of ac¬ complishing this object: First, put together the caps, then fasten the column I and the top sphere securely to it; then add the section E and then D and F. Next in order, finish the pendant and sphere and the parts up to section C. Then fasten either of these parts of the turrets to the large cylindrical section E and connect it with the remaining part. Solder every joint well. Pay particular attention to and be careful that the entire structure is in perfect alignment throughout. Never allow work of this kind to have the appearance of being lop-sided or bear the ear marks of carelessness and incompetence. After the turrets are completed as far as described in the foregoing descriptions, they may be connected to the sections of both the raising as well as the horizontal cornice, which miter to them It now only remains to add the spiral flutes to the cylindrical part of the turrets and this operation makes them complete. The methods by which these flutes are produced in every particular are fully explained and illustrated by the Fig. 136 and are as follows: The problem presented in this instance devolves itself into developing the square or block-shaped spiral flutes in the best manner. To attain this end there are several methods by which this may be done, three of which I will describe in full. Fig. 136 shows that the spiral has a degree of pitch which causes it to revolve around the cylindrical column one and one-half revolutions. The tracing of the course which it presents when fully developed is shown by the dotted line from point B to A for one-half revolution and from that point it makes one continuous curve completely around the column to point C, ending at its extreme upper end. The outer and upper outline curve only is shown for the spiral in the drawing # above point A to point C by a solid line for that portion which is CORNICE WORK MANUAL 157 presented by a face view to the person viewing the drawing. The inner curve or that part of the flute which is in contact with the column, is shown by dotted lines only in the drawing, as it would appear viewing it from a front view, considering the line C, A, B as the center line of such view. These preliminaries noted I will first discuss one of the simplest methods used by some cornice workers of producing a series of spiral fiutes or ridges on the surfaces of columns or on work pertaining to the same general char¬ acter as the turrets uuder consideration. The operation consists in merely bending up the ridges as desired in a brake; the ridges as a matterof course c§n not be as deep nor as sharply cornered as those shown in Fig. 136. I have merely giveu this description to show how a simpler style can be pro¬ duced than the variety shown in the drawings. The course of the line of contact that a spiral has on the surface of a cylindrical shape as in tbe col¬ umn of Fig. 136 is merely a straight line drawn diagonally across the stretch-out of the circumference of the column at an angle coinciding to whatever rise or pitch the spiral has. In a case as shown by Fig. 136 this angle would be as indicated from point C to A, which is equal to one-half of the circumference of the desired spiral for this case. Having shown by the foregoing that the line of contact is only a straight line on the surface of a stretch-out of the column, it can very readily be seen how ridges represent¬ ing spiral flutes can be produced in the flat or a stretch-out of a column by the use of a brake. Provision must be made for the extra amount of mate¬ rial required for the flutes thus produced on the stretch-out of the column. The foregoing described method is a favorite one with many cornice makers to accomplish the desired effect on work of this class, providing the re¬ quire! projections are within reasonable bounds, or are not too large to al¬ low the stretch-out after the aforesaid flutes have been bent up in the brake on the flat piece to be readily bent and formed to the proper required shape, whatever that may be, to suit the work in hand. One of the simplest methods to accomplish the desired result for the problem as presented by Fig. 136 is to simply bend up a strip of the required profile as shown by D; this made in convenient length or such lengths as are demanded in this problem to miter to the horizontal and raking cornices which join the tur¬ rets. After the pieces are bent to the shape as profile D demands, they can be subjected to the process of running the edges 1 and 2 through the rolls of the crimping machine, Fig. 123. By this treatment the required degree of curvature is obtained, which with the proper twist given by the workman to the flutes, cause the same to assume the appearance of the spiral of a screw as demanded for the flutes in order to conform to the shape they must have to fulfill the conditions as set forth by Fig. 136. The foregoing dea- 153 CORNICE WORK MANUAL cribed method is the simplest one by which the work involved in the pro¬ duction of these spiral flutes cxn be done, and is to be recommended for the reasons that they are'the cheapest produced, easiest made, neatest and strongest shape that the flutes could be made, so as to meet at once all the requirements demanded by the drawing, so as to be readily mitered and fitted to the column X of Rig. 136. The concentric circles give a plan view of the sections of the flutes. The profile G to H shows the outline of the horizontal cornice No. 6 of Fig. 101, while the profile from point R to S shows the outline of the line of contact that the raking cornice of the gable has where it joins the turret. These explanations show the student fullv where the ends of the flutes end or miter to the two cornices on the 4 / face of the column X of Fig. 136. The third and last method which I will describe to produce the spiral flutes is as follows: By this method it is pro¬ posed to produce the flutes out of three separate pieces or parts, namely: CORNICE WORK MANUAL 159 the top and bottom parts and the vertical face or side-parts. In developing the top and bottom spiral stretch-outs the fact must not be lost sight of that a template cut-out of a flat piece of metal for a shape as demanded by this problem must, after being so cut, be subjected to a certain amount of hammering and stretching, more or less, as the case demands, in order that the spiral flat piece will conform to the shape that it must have in order to fit correctly against the column and at the same time present a horizontal plane out to its outer edge from any point of its surface, and this in regular 1 progressive order, as demanded by the line of contact as described before. This in brief is the problem to be solved. By the m ithod describeJ in the following, the best possible shape is evolved that can be produced in the flat, the only stretching necessary to make the spiral strips fit as demanded is around the edges in order to compensate for the loss which the surface of the strip sustains in drawing it up to the shipe as shown in Fig. 186. All laps and allowances for joints are extra and will have to be allowed for when the pieces are.gotten oat for the spirals. The first step to take is to make the line B to 0 equal to one-half of the circumference of the column X; connect point G as shown by dotted line to point A wh ch is where the ine of contact occurs that the spiral has with the column in one-balf revolution of it around the column. Make the distance from point C to point n equal to one-half diameter of the column X. Erect the line n from point n at right-angles to line 0 B. At the point at which the line n cuts the line 0 to A is the end of the radius by which the inner curve of the required pattern for the spirals is cut, using C as center. The circular line o being the inner line, it remains only to draw an outer Line, corres* ponding in position to a distance away from line o equal to the width that the required spiral is to have; this has been done and the line k is the re¬ sult. In the practical application of this rule as to the length of the dif¬ ferent flutes required for the turrets, the student must make them as re quired according to the various measurements to fit each particular one for itself. Fit the miters to the cornices by trimming the faces of the differ¬ ent parts, as required in each instance. Each flute has a top and bottom spiral face; the vertical face is merely a flat straight strip equal in width to the vertical height of the drawing for the same at any point of its face. The manner of fastening the flutes together is best accomplished by first soldering the spiral pieces to the column and then soldering the cap or outer face to the burred edges of the spiral. In this way a good job can be done. It would also be well for the workman, before he attempts to solder the spiral strips to the column, to mark the line of contact on the same in order that the mark will serve as a guide so that the strips will be CORNICE WORK MANUAL' CORNICE WORE MANUAL 161 Correctly placed when soldered fast to the face of the column. If these lines of contact have not been marked on the metal before the columns have been formed to shape, and which is more than probable that they would not have been in a case like these turrets, I would advise to draw the triangle C B A, connected by the hypothenuse A to C (which latter lin is the line of contact for the upper edge of the spiral flute Y) out on paper Also make similar angles for the other lines of contact, that is, if those * i already made will not answer for the purpose of being used over again in a new position. If one of the foregoing described angles is cut out and the points A and B fixed correspondingly against the column X at points A and B, then if the triangular piece is wrapped around the column so that point C of it comes to point B of the column, a line drawn to the outline traced by the bypothebuse of the triangle against the face of the vertical cylindrical column X of the turret is the result as shown by the drawings of Fig. 136. This concludes ihn complete exposition of all the patterns, methods and tools used to produce a complete turret as shown by the Fig. lOi. Having disposed of and given a description of the entire details of all gable as well as the horizontal cornices, and a thorough exposition of the methods by which the patterns are developed for the pillars or turrets as shown by the Fig. 101, Chapter XXII, I will next give a detailed exposition of the remaining members of the cornices that have not as yet been de scribed and accorded detailed treatment. The two paneled end copings I will describe first. A front view of Ihese and also of their relative positions, together with the other members which I will describe, are all shown by front elevation This view shows V" ping as far as the cutting out p trt by this method i» concerned, proviling that the lap3 as sh >wn were a'l to be left on the main piece ot the stretch out. These l ips may be left as wide as the f" space and also what is left from tbe difference between the slant deck of the panel and the straight horizontal covering of the top of the copings; that is, if the covering is laid out in the flat. Just how to arrange for the Japs is so clearly shown in the draw ng for both ends in this case th it further description is unnecessary. The top end can be cut on line b c n to b, so that all the laps are to be allowed for this end on the top section. Fi$ 140. The laps are all shown in this figure to lay under instead of over the lower section. I have shown them this way as some cornice men prefer to solder 166 CORNICE WORK MANUAL the laps thus, claiming that they can soak them better with solder when work is in position on a building. But as these members can, by the method described, be finished wholly in the shop, this way of lapping the joints would not be of any material gain over any other plan. If the student cares to reverse the order in which the laps are shown he is at liberty to do so. Fig. 140 shows the profile to which the two end sections are to be bent and broke when forming them to shape as demanded for their proper fitting together with the main part of the stretch-out, which is to be formed to 3hape in sections, as the Fig. 137 shows. The foregoing is one way to lay out the paneled copings. Fig. 141 illustrates another • method for the same purpose. This figure is drawn to the scale of 2" to Fij.m. the foot. From a to b shows the elevation or profile; the plan view is also shown above line c to d for part of the lower end of the paneled part of the right-hand end wall coping of the building as shown by Fig. 89. By using the method shown by Fig. 141 the entire paneled coping can be made out of one solid piece of iron, it being only necessary to cut out the required strips as shown by Fij. 141 so as to allow the iroi to be readily formed to the shape demanded by the profile of the same figure. The preliminary CORNICE WORK MANUAL 167 steps for this stretch-out are the same as described for the method shown by Fig. 139 as far as the division of the sheet for the various surfaces pre¬ sented by the coping in the profile is concerned. The foregoing applies to the entire coping, panel, etc., up to the line c a of both ends of the cop¬ ings. Beyond this line toward the ends is where the really difficult part of the patterns to be laid out in this problem will be found. In the elevatiou each surface of the coping presented is numbered and correspondingly numbered in the stretch-out. The parts 1, 2 and 9 may be drawn out fully the whole length of the sheets, as these parts of the profile are all bent only one way; that is, lengthways, the only point to be determined for them, is the length that they should have down or up from line c d, as the case may be. This is shown by the lines e f and s t. Then also the distance down from line c d to the dotted line m n can be made equal in length for all the sections numbered 1, 2, 3, 4, 7, 8 and 9, but not for the sections 5 and G of the stretch-out, Fig. 141. Connect the points 0 and O' of sections 5 and 6 with the center point X, as shown by the dotted line. Next make line X to h equal in length to the slant of the panel; connect point h with point 0 of section 5. The line X to h is at right-angles to the line h to 0. Continue the line X, h down to point] k, making from point h to point k equal in length to the distance that the profile shows for the height that the panel is raised up from the bed of the coping, namely, J", and also to this add the length between line m and e. This has been done. Now connect point K with point y, and this point again with point 0. Next connect the triangle shown p, y and the 2\" base to the position it has, as shown. Then con¬ nect the points f and u of section 3, and from point u connect to point 0, thus completing the lower end of the section 4. A similar operation has to be done for the lines of the sections 6, 7 and 8 on the other side of the center line of the panel. All the foregoing described lines and how they are to be disposed of in the drawing is so plainly shown in Fig. 141 that it is needless to give a further description, as they can be readily understood without it. To cut the waste material from this stretch-out so as to allow its proper forming up to shape as demanded, proceed as follows: Cut from point e to f, then to u and to 0. If these joints were to be butted together the course of (he cutting could be continued from point 0 to r to w, from w to K, and from K to center point X. This would ^complete one-half or one side of the coping. But it is not at all probable that a job of this de¬ scription would be put together with the joints butted. They would proba¬ bly be lapped, which is the proper and better way, so provision must be made for the required laps. Material for the laps as shown is to be left when cutting the patterns. 163 CORNICE WORK MANUAL When forming up a piece of work such as this coping presents, if laid out as in Fig. 141, it would be best to break 'up the side shape first to the profile as demanded the coping should have when finished. After this is done the end pieces would have to be flattened and straightened out again and then formed to the required shape that they should have as demanded for them by the plan and profile of Fig. 141. The method as described in the foregoing is one by which the entire lower 8" lengths of the copings can be made out of a single piece. Which of the two methods as (described and shown by Figs. 139 and 141 is the better I leave the student to decide for himself. I have used both methods in actual practice and have found both ways to have some good points which would particularly recommend one or the other for some particular occasion. It is well’to be able to have either method at one’s command when occasion requires the use of such knowledge. The next members of this cornice which I will describe in detail are the head blocks. Fig. 95 shows a full front elevation of one of these, while Fig. 96 shows a side view. Both figures are drawn to the scale of 1" to the foot. As it would not be advisable to make such a structure as one of these head blocks out of large single pieces of material for the simple rea¬ son that such a method would be too wasteful, as the iron could not be cut to advantage, to meet this case the following order and methods of as¬ sembling and proportioning the various parts are suggested and recom¬ mended. A neat and well made piece of work is. the result, if the direc¬ tions as given are followed for the construction of the head blooks under consideration. The first section which will be given in detail is the base part of one of the head blocks. Fig. 188 shows the side elevations. CORNICE WORK MANUAL 169 The outline bounding points A to F show outer part of right hand end block, and also the continuation of the side covering of the end wall above the coping as described before. For the inner part that fits against the crown or deck cornice the line H to K shows the inner boundary. As it is intended that these side pieces are to have the front part of the base sol¬ dered and laid up against them, suitable laps and edges must be provided for this purpose. This has been done as shown on the outline A to C of Fig. 138. The J"x9|-" long patt as shown by the strip X X is added at the top above line A to B to provide for a suitable lap up into the mrin part of the head block to fasten the same to the base, and an equally wide but 12" long strip is also added to the stretch-out for the front of the base as shown by Fig. 142. As the head blocks and base are to show a 12" front the stretch-out has been figured at that measurement for width; the length is 26", as demanded by the outline A to C of Fig. 138. All the bends are shown on the stretch-out, Fig. 142, by the lines 2 to 11; these corresponding Fig 14&. to all the various bands of the profile A to C of Fig. 138. Cut the two side profiles as directed and also the front; form thi* latter piece to shape and solder the three pieces together as demanded by the drawings. This finishes the base part of a head block ready to have the upper sections joined to it, which I will next describe. Fig. 143 shows the stretch-out of the back and the two sides of a block. The back is made 12" high and 12" wide; at the bottom of the same an allowance has been made, shown by the f" strip X, X, for a flange to be laid off at right-angles to the verti¬ cal side of the block. The same amount for (dges has also been allowed 170 CORNICE WORK MANUAL for the inner side at its bottom edge, as well as at the top of all the three parts of this stretch-out; the top edge is to be turned inward while the two bottom edges are to be turned outward from the body of the truss or head block. The two ornamental rectangular tracings of lines shown by 1 and q. ft. for 75 dentil blocks, making the total 200 + 22 + 5=227 sq. ft. of iron for the main cornice shown from point X to X' in plan and from C to E in front elevation, Fig. 164. In this cornice there are two outside and three inside square return miters and one molding miter¬ ing to a raking cornice from the side gable at X and the other end at X mitering and fitted to the main cornice of the tower. Both these last-men¬ tioned joints are shown in the plan, Fig. 166. Thus is seen that this cornice has eleven miter joints in all. This item is to be taken into account when the time estimate is figured up for this cornice. The next section of the main cornice of this building which I will show how to measure up is the gable cornice for the left-hand side of building, a3 shown in plan Fig. 166, from points X, K to L, and extending back from the gable cornice proper with a square return to the point r. This section of the cornice from point X to r is designed in profile to correspond with its raking members in outline to the profile of the main cornice, Fig. 167, from point X to point O. This is shown by Fig. 168. Fart A is in outline the same as the sec¬ tion of the horizontal cornice, Fig. 167 is, and part B of Fig. 168 shows the profile of the corresponding raking cornice which miters to the section A. As can readily be deducted from the front elevation and from the plan, Figs. 164 and 166, the raking cornice will have three miter joints, one at the gable and two joints, one at each lower end where the raking cornice miters to the horizontal section. The section shown in plan from point L to r is to be in profile the same as part A of Fig. 168, or as shown from X to O in Fig. 167 for the same. The face of this cornice, Fig. 168, shows that there are to be no dentil blocks on the dentil course, but it is to be plain throughout. The length of the gable cornice is for each side 13'x2= 26' long for the both sides, or for the length of the raking gable cornice. The profile measures in stretch-out 20J", or say 21". Thus 26'x21"=45i- square feet, are required for this part of the cornice. The section shown in plan from L to r measures 8' long, the girt of profile is 23J". This adds 204 CORNICE WORK MANUAL another 8 sq. ft. of mateiial to the list. The profile of the rear and the cor- V, nices at the back ends of the sides on the building are to be as shown in. outline in Fig. 169.? The stretch-out of this profile measures 17J", or say 18", the entire length of all ihe members of the cornice having a profile as in Fig. 169 are from point r to point s as shown in Fig. 166 or plan. This length is 5b' 8 ".‘t Thus 58'8" x 18"=88 sq. ft. to be -added to the total quantity of material to be added for this section of the entire cornice. There are four miter joints in this section. The two end joints, one at point r, the other at point S, are each half-sections of a miter joint only/ The joint at point s is merely to be fitted to ihe outline of the main cornice course as far as required by this member. ' The other end .of the cornice at point r is to be fitted to the section L and r, but as may be noticed, the two profiles of the two sections are not alike in height or in profile. One peculiar feature in this joint is that a four-inch tube is to be let through the cornice at this point from the gutter; thus the greater part of both the dissimilar profiles of the two cornice sections will be cut by the outline that the four-ir ch tube has, and as a consequence the moldings of the two sections are to miter against this tube, thereby reducing the amount of contact that the two sec¬ tions of the cornice should have together, and greatly improving the ap¬ pearance of the remaining part of the irregular joint that these dissimilar moldings have when joined together. % The foregoing embraces all the cor¬ nices around the main building. ’ The next item will be the cornice around the square tower shown by H in Fig. 164 and in plan, Fig. 166, from point X' to Gto n for its entire length. This from point X' to point n is 21' 6" long. The stretch-out or girt of section H as shown by Fig. 170, drawn to the scale of one inch to the foot, is from point 1 to 14 2S§", or say 24"; CORNICE WORK MANUAL from point 14 of profile to point 15 is 17£", or say 18" frjm point 15 to 24 is 13£", making altogether 55£" girt measurement for this cornice. Thus 21' 6"x55"=:99 ft. nearly, or to use even numbers say 100 square feet of iron. Now add to this the extra material necessary for the dentil blocks five square feet, and also allow for the extra material required to make the panels shown for these 10 square feet more, which will make the quantity of iron needed for this cornice 115 square feet. This completes the entire course of the main cornice around the tower and building and enves the iron needed for the same. This total so far is 483|- square feet. Fig. 171 shows a sectional elevation of one-half of the pediment cornice for the front porch. It also shows the profile of the main and deck cornices for both the front and side porch (A and B in plan Fig. 166). The average width of the stretch out for the main cornices of both porches is 42". This includes from point C to D, E to H shown in profile Fig. 171. The stretch-out of the cap cornices for both of the porches is 15" wide each. The elevation as shown by Fig. 171 gives the correct position of the g*neral details of the entire jrofile for both cornices 206 CORNICE WORK MANUAL of the porches, and it also shows the position and outline of the ornamen¬ tal scroll shown by X for one side of the pediment; the other side has a similar ornamental scroll, which is shown in elevation by Fig. 164. In addition to this it also gives a broken view of part of the ornamental finial which is to be placed on the apex of this pediment. From point C to D is shown a section of rihbed coping. The curved roof parts of both front CORNICE WORK MANUAL 207 and side porch are to be covered with tin shingles. Fig. 17*- The two flat deck roofs are to be covered with flat seamed tin. Two roofs have curved corners Roof A of front porch has one square and one curved corner, while roof B of the back porch has two corners that are curved in plan but have a different radius from each other. The curve S of roof A and curve S of roof. B are alike, that is, they have the same radius in plan. Fig. 172 shows a complete plan of the three curved parts in plan of the two porch roofs. Every necessary line needed to give a correct plan view of both the two large curved parts and the smaller curve S" of Fig. 160 are shown in Fig. 172. This figure shows by plan A the correct radius for all the lines of the larger curves and also a side elevation of the correct rela- 208 CORNICE WORK MANUAL fcive position such a view has to the lines in plan A. By part B the com* plete radius of all the lines needed for the smaller curve are given. These curves are also placed in their correct relative positions that they have to the side elevation as in nart, a of Fig:. 172 The part C of this figure shows the profile of all the moldings of these cornices placed in such a position as to indicate the relative positions they have to each other in a plan view, but by the arrangement as given, are shown so place in profile* By this disposition of these members we are enabled to use both ways, either above or below the profiles, to show the correct relative positions these curves have to the profiles of the deck moldings and cornices, as well as the correct relation and position that the smaller curves of the curve B have to those of the larger curves of part A in a plan view. All this is shown in a general way by the rear porch plan B in Fig. 166 by S' and S", and is given in detail in Fig. 172. The amount of stretch-out for both the curved moldings as well as for a straight course, is in a sectional view about the same, but when the workman comes to lay out the curved mold- ngs he will find that they require considerably more material than is needed to make a straight molding of the same profile. Thi point is cov* ered by some cutters when they have a considerable amount of curved work to get out by allowing one-third more material for a curved molding than for a straight one, both being of the same profile in section. This method answers all purposes where it is not required to be too precise or where the absolute required amount has not to be determined in the prelim¬ inary stages of the estimating on the cost of any certain job of circular moldings for any cornice. I may venture to state in connection with this point that the additional one-third of material which some cutters add, amply covers all demands for this point, and for this case I have used it in figuring up the material required for the moldings as shown by Figs. 171 and 172. The foregoing understood and by using the methods described, we may now proceed to figure up the amount of iron required to construct the cornices for the two porches shown in Fig. 164, the stretch-out of profile of both main cornices being 42", and for the deck moldings 15". The next step is to measure the lengths of these respective members. The total length of straight cornice on porch a is 20' 6"; on porch B 9' are required. Both being the same profile, add these two lengths together. Thus 9' -f- 20' 6" = 29' 6" -f- 42'" — 103 sq. ft. of material is re¬ quired for these sections. The curved moldings on porch A are 6 ft. in length, while those of porch B measure 10', thus 10' -f- 6' = 16' -f- 42" — 57 J, or say 58 sq. ft. To this amount add one-third or 19 sq. ft., as directed in the foregoing descriptions, and the result is that for the curved CORNICE WORK MANUAL m moldings of main cornices of both porches we allow 77 sq. ft. The total length of the deck moldings of the porches is 16' for porch A and 9' for porch B. Thus we have 9' -f- 16 = 25' x 15" the stretch-out = 31£ sq. ft. I will next give the methods for the same purpose for the remainder of the covering of the square and octagonal tower from the balustrade course or section I to the section N or top cornice of the octagon part of the tower. Section I of Fig. 164, or the balustrade course, is shown drawn to the scale of 1" to the foot by Fig. 173. This section in the plan and both the front and side elevations run around only three sides of the tower—the front and back and the right-hand side only, the left-hand side of the tower joining to the roof on a level with the top line of section I, consequently for this side theie is no course of covering as shown to be on the other three. The only point where the course would come around and on the left side is at the corner R shown in plan, but this part, instead of being brought around, the course is continued at the back in a straight line until the roof X and the roof 0 is brought over with its edge to the line bounding the outside of this course at the top. As will be seen, this course shows on each of the three sides a cap molding, a to b, Fig. 173, each side having two diamond capped panels and also two pilaster columns, as shown by c to d of the same figure. A detail elevation and profile of both the pilasters and the panels are shown. The stretch-out of the profile for 210 CORNICE WORK MANUAL this section from point a to the bottom line of the cap molding is shown" from points 1 to 10, and measures 18J"; for the remainder down, I will take for the average, both pilasters and panels, the outline or profile of the panel shown in Fig. 173. This measures, from point 1 to 15, 27|"; add the length between the points 1 to 10 to this, and we have the total of 45|" for sfreteh-out. The length that this section has is from point XX to R, shown in the plan Fig. 166, and it measures 33". Thus we have 38"x45i"=125 square feet and a trifle over. The front part of section I miters to the roof. This cuts away part of the section, but I do not deem the quantity sufficient to take it into account when figuring up the total, therefore this has not been done. The next sections which I will discuss are K and L, including the blind dormer fronts, the pilasters and window casings shown in the front elevation. Fig. 174 shows an enlarged detail drawing of the blind dormer fronts. There are eight of these fronts on the tower. Each front has two ornamental rosettes—one in the pediment and one fixed to the apex of the gable, as shown by Fig, 174. Both in eleva vation and profile or section these rosettes are either to be of stamped zinc or may be made by hand, of galvanized iron. The totil surface of the lower part of one of these dormers, as shown for section K, is from point a to b in profile, from point b where the sunken panel begins to its lower end c. from that point to point d at the lowest line of this section 46", and from X to X, which measures 38^. This multiplied by 46", the height, makes 13 square feet, nearly, which multiplied by 8, the number of dor¬ mers, makes the total for these fronts so far 13x8=104 square feet. Add to this the extra 3£ square feet of iron needed for tne nine panels and the half-round moldings R and S for each dormer, which makes 31 x 8=28 square feet more to be added to the quantity found for these members. The gable molding K has a stretch-out of 6" for its profile, there being alto gether six feet of this molding for each dormer, making the hngth for the eight 6x8=48"; this length multiplied by 6", the stretch-out, makes the quantity of iron required for these members 24 square feet. The triangu¬ lar pediment behind each dormer measures IJ square feet; that is 8 x H=12 square feet for these surfaces, making the entire total for the eight blind dormers of the tower 168 square feet. The quantity of iron required for the pilasters and frame for the in section K and L of the tower is shown by the Fig. 175. This figure shows the columns, both in section and elevation, and a profile of the frame which is to be covered. This is shown from point a to b and meas¬ ures between these two points in stretch-out 6". The length of this frame for the two sides and top is 14", thus 14" x by 6" = 7 gq. ft. X by 8, CORNICE WORK MANUAL 211 which is the number of windows in the tower, we have 21 sq. ft. for the frames. The pilaster columns may be taken as having an average of 13" in girt and for length each one has in stretch-out G' 3". This is for the pilas¬ ter columns for the tower; thus we have 6 x by 6' 3" -- 37' 6" x by 13" = 41 sq. ft. nearly; add to this the quantity found for the sash frames, which is 21 sq. ft. and this makes the total for these members of sections K and L 62 sq. ft. In connection with these figures given for the sections K and L it may be well to state that the side of the tower toward the hip roof which joins to it shows that the sides of the tower are cut by the dotted fines where the roof line is. These dotted fines show that the roof cuts away part of the blind dormers on that side and . the pilasters if arranged as the other three sides of the tower are. This for the case as shown would demand that some allowance be made for material to make the upper parts of the pilasters, but as the surface exposed is made flat as 212 CORNICE WORK MANUAL Fi*176- the pilasters show, the material cut off from the lower part of the blind dormers and which will not be used there can be used for tha,t part of the section L for which no material has been allowed for and whioh is amply sufficient for those parts. The section M of the elevation showing the circular moldings and fluted panels are drawn out to the scale of I" to the foot and are thus shown by Fig. 176, both in profile and elevation. One-half of elevation being sufficient to show all the required details I have only shown that ^uch for this section. The stretch-out of this profile is from a to b, not of course, in this case including the projections of the moldings C D, and the flutes E is 8' 10' the width of each one of the eight sides of the tower is 4'; 4" thus 4' 4" x by 8 — 84' 8" x by 8' 10" = 183 sq. ft. nearly. Now measure up the pro¬ file of the moldings C and D: these together are 12" wide, the length of the sweep of these moldings is 6' long, thus we have 6' x by 8" = 48' x by 12" = 48 sq. ft.; now add one-third of this last found, total for waste in cutting, etc., and we have 48 x 16 = 64 sq. ft. of iron required for the entire circular moldings of all the eight sides of the section M of the tower. CORNICE WORK MANUAL 213 There are also 128 half-balls or hemispheres required for this eight-sided section. Sixteen 1£" spun zinc half-balls are shown for a full side by Fig. 176. The foregoing deductions for the total quantity of iron required for this section were arrived at by the following disposition of the members and surfaces entering into the construction of each one of the eight sides, one-half of one of them being shown by Fig. 176. From point X to b is to be a straight or flat back, then the raised square panel X', the circular moldings C and D and also the flutes are to be soldered to tdis back all in their proper relative positions as demanded by Fig. 176. The total quantity of iron required for the flutes of all the eight sides of section M is 48 sq. ft. The crown molding or the top course of cornice for the tower is shown by Fig. 177, drawn to the scale of one inch to the foot. The stretch-out of profile for this section N measures 36"; the entire length for the eight sides of the tower of this cornice measures 72', thus we have 72 x 36" = 216 square feet of iron required for this section N of the tower. There are 48 3" half-balls demanded for section N. Allow for these when summing up the total material required for this job. The next and last member of this structure, besides the finials, to measure up is the front dormer, projecting from the front bay roof. Au elevation drawn to the scale of one inch to the foot is shown hy Fig-. 178. This figure shows all the details of the front as well as the profile outlines at the extreme front outline. Fig. 179 shows a side elevation of the covered side and part of the slate covered roof in connection with the angle line that the roof has, as shown by line a, b. I will first instruct how to measure up the front as shown by Fig. 178. 214 CORNICE WORK MANUAL The stretch-out of the gable molding measures from the point a to b T . There are 6' 6" of this molding, making 6' 6" x 7" ~ a little over square feet, or say 4 square feet for this molding. The pilaster columns have an average width of 7" and measure in profile for their height each CORNICE WORK MANUAL 215 33" Thus the two require 3£ square feet of iron. Allow 4 square feet of iron for the curved molding, the sash frame and the pediment flat front. Allowfor the two ornamental rosettes shown in this view. For the mate¬ rial required for the two sides measure the profile of the horizontal mold¬ ing mitering to the gable molding, then from line a of Fig. 179 to point a of the roof angle. This distance is 28": then from a to d is 18”; thus 28" multiplied by 18" equals 3J square feet. As each side has one-half the area that this result would make, by reason of the roof line cutting the side of the dormer as it does, but as there are two sides and each is just half this area, the result is correct as it stands, namely, ^ square feet for the two sides of the dormer. The iron required for the coping for this dormer is 3J square feet, making the total quantity of iron required for the entire dormer 18| square feet. CORNICE WORK MANUAL 215 Next ascertain the quantity of iron required to construct a finial to cap the tower drawn out to the scale of 1" to the foot in Fig. 180, both in elevation as well as plan. To accomplish this proceed as follows: Measure the outline of profile from a to b. This for Fig. 180 is 48". Next take the outline of the fluted or ribbed part of plan from a' to b', which meas¬ ures 12', then measure the width of the top octagonal part near the 8" ball. This is say 2" for each section. The average width of these pieces CORNICE WORK MANUAL. 21? would be 6", which would be an ample allowance to cut the sections from if they had a gradual slope from a to b, but as the design Fig. 180 is some wider on an average than the figures given before it would be well to allow for the entire width of the sections 6J"; thus 6i" x 48"=2 1-6 square feet for each section and 2 1-6 square ft. x 8—17^ square feet for the entire finial. One 8" ball is to be charged to the cost of this member. A similar method for the large finial can also be used to ascertain the quan¬ tity of iron required for the two smaller finials, Figs. 181 and 182. These two members have each a hexagonal column and are mounted on a square base. The iron required for the finial shown by Fig. 181 is 5 ] square feet, and for the finial Fig. 182 it is 4|- square feet. Both results have been arrived at by a similar method to that used to find the area of surface for the tower finial. There being two finials like the one shown by Fig. 181, 11 square feet will be needed for these, making the total 151 square feet ol iron. Fig. 188 show r s the front and side elevations of a rather bizarre de¬ sign for a finial for the gable of pediment for the front porch, shown in Fig. 164. The design, although its appropriativeness for the general en¬ semble of the entire front of this building is to be admitted, still there is a certain effect of heaviness about it, that, when this finial is compared wilh the graceful and delicate design shown by Fig 184, would lead one to give the last-mentioned finial the preference for an ornament to be placed on the gable of a pediment, as shown by the Fig. 164. Precisely such a change as the above-mentioned took place and was ordered by the owner of such a building, as the designs show where the choice lay between two.desigus aa 218 CORNICE WORK MANUAL presented by Figs. 188 and 184, and he had the choice of style. The foregoing described circumstances in this case induced me to give both designs in this instance. I have also given the manner of estimating the material required to construct either style. To ascertain that required for a finial as in Fig. 183 measure up the base of front elevation A. This is 1 square foot for the front and the same for the back. It will also re¬ quire 2 square feet for the two sides of the base shown by B, Fig. 183. Then for the circular column from a to C, shown by both views, it will take 8J square feet more. The shell head scroll and fan spray ornamenta¬ tion will require 5J square feet more for this finial, making a total of 13 CORNICE WORK MANUAL 219 square feet. The material required to construct the finial Fig. 184 will be considerably less. Each base from the roof to the large 4£" spheres or balls requires 1J equare feet; both together 3 square feet. The two coni¬ cal parts from above the 4£" balls to the apex of each lequire 2 square feet. It will take another 1| square foot for the base for the center ball and the connecting rail between the three posts, thus making the total surface of the iron required for this finial square feet. Add to this total two 4|", one 8", two 1J" and two f" spheres or balls, twelve f" hemis¬ pheres or half-balls and two ornamental 3" rosettes. This completes the total galvanized cornice work that there is about this building, with the ex¬ ception of the hip copings of the roofs. INDEX it A PAGE Allowance for Waste. 92 Angles, Base Degrees of. 92 Angle Tret . 10 Architrave .10" 12 Area in Ornamental Pillars. 91 Area in Turrets. 91 Arrow Head Pattern. 55 Arrow Vane. 100 Assembling Cornice Work. 114 Attachment, Inking for Compass. 7 Attachment, Pencil Point for Compass. 7 Axonometrical Triangles . 10 B Bale Sling . 82 Ball and Star, Ornamental. 178 Ball for Finial. 54 Balls, Iron for Circular Supports of. 91 Ball, Spun Zinc. 54 Band Fascia, Face of. 12 Bar Iron, Sizes of. 19 Bars Square for Cresting. 173 Base Angles, Degrees of. 10 Beading Machine . 143 Beam Compasses . ... 7 Bed Moldings . 12 Bend, Common. 79 Bench Cutters . * . 1 Bevel . 7 Binding Timbers, Knot For. 79 Block, End . 12 Block, Head. 12 Blocking Up Raised Work. 152 Block, Pulley . 82 Block, Rope Strapped. 82 Blocks, Dentil.12-15 Block, Snatch . 82 INDEX 221 PAGE Blocks, Tackle . 82 Block, Stop .. .*.;. 12 Bolts for Cornice Scaffoldings. 65 Bowline Knot . 79 Brace for Fastening Planceer. 61 Braces, Fastening to Galvanized Iron Surfaces. 62 Braces, Main, Made in One Piece. 62 Braces, Wooden . 63 Bracings and Fastenings of Cornices to Buildings. 56 Bracket Patterns . 28 Brackets .14-15 Brackets for Staging.. 66 Brackets Joining to Planceer. 29 Brackets, Modillion . 12 Brackets, Placing in Position. 58 Bricks, Wooden. 60 Butt, Mitres. 13 Butt, Sling . 82 C Gap of the Turret. 151 Cartage. 22 Cask Sling . 82 Cast and Pressed Zinc, Specifications of. 88 Cement, Roofer’s. 112 Center Ornament for Pediment. 40 Center Piece of Flute, Development of. 50 Center Pieces . 15 Chain Knot . 79 Circular Ornaments for Cornice. 93 Circular Supports of Balls, Iron For. 91 Classification of Slate. 109 Cheating Fascia Band to Planceer. 59 Clove Hitch . 81 Columns, Pediment. 40 Combination Half Hitch and Timber Hitch. 82 Common Bend . 79 Compasses, Beam. 7 Composition Die, Durability of. 75 Computing the Surface of Slate. 108 Conductors, Specifications of. 87 Cone, Frustrum of, Stretchout For, Envelope For. 147 Constructing Moldings for Turrets. 138 Convenient Method for Putting up Cornices in Sections. 59 Coping of Gable . hi 222 INDEX PAGE Coping, Projection on Panel of. 98 Copings, End, Paneled.161 Copings, Iron For. 91 Copings, Material For. 92 Copper, Weight of. 19* Copper Work, Specifications of. 88 Corbel Blocks. 14 Cornice. 10 Cornice, Circular Ornaments For. 93 Cornice, Cresting . 83 Cornice, Deck Material For. 92 Cornice Gable .83-126 Cornice, Gable, Material For. 92 Cornices, Gable Stretchout For. 189 Cornice, Horizontal . 83 Cornice, Joining Parts of.„ . . . 3 Cornice, Lintel . 13 Cornice, Material For . 92 Cornice, Method for Putting Up in Sections. 59' Cornice, Pediment . 205 Cornice, Baking . 126 Cornices, Bracings and Fastenings to Buildings. 56 Cornice, Scaffolding Bolts For. 65' Cornices, Measuring of. 17 Cornice Work, Assembling. 114 Cornice Work, Defects In. 56 Cornice, Working Drawings of. 96 Cornice Work, Scaffolding For. 64 Cornice Work, Staging For. 64 Covering of Octagonal Tower. 209 Covering of Square Tower. 209 Crayons, Marking. 8 Cresting Cornice . 83 Crestings, Material For. 92 Cresting, Specifications of . 88 Cresting, Square Bars For. 173 Crimping Machine . 140 Crossed Fastening. 80 Crown Molding. 12 Crown Molding, Pattern For. 35 Crushing Besistance of Slate. 109 Crystallization Secondary, Planes of, in Slate. 110 Curved Molding for Turret. 150 Curved Molding Machine. 144 Curves, Drawing. 7 INDEX 223 Cutters, Bench .... Cutters, Efficiency of Cutters, Tools . Cutters, Work. PAGE 1 37 3-5 o D Deck Cornice, Material For. Deck Molding, Pattern For. Deck, Pattern For . Defects in Cornice Work. Degree Scales . Degrees of Base Angles. Dentil Band Pattern . Dentil Blocks . Dentil Mold . Descriptive Geometry. Determination of Position for Each Point of Horizontal Molding. . Developing Square Plorizontal Mitres. Development of Center Piece of Flute. Developing of Spiral Stretchouts. Die Composition, Durability of. Dies for Ornament Stamping Machine. Differences in Horizontal Molding Mitering. Dividers . Dormer Window, Gable Cornice For. Dormer Windows, Material For. Dormer Window, to Measure. Double Rope, Knot On. Drawing Curves . Drawings of Finial. Drawings, Reading of. Drawings Should Be Large Scale. Drawings, Working of Cornice. Drawing Table . Drawing Tools ... Drawing to Scale. Dressing Stake . Durability of Composition Die. 92 35 35 56 7 10 30 12-75 12 13 188 31 50 159 75 73 33 7 185 92 91 79 7 99 13 187 96 1 7 90 111 75 E Edge, Straight Steel. 5 Efficiency of Cutters. 37 Emergency Loops . End Block. 12 224 INDEX End Copings, Paneled . Ends of Rope Fastening. Entablature .*. Envelope of a Molding. Erasers, Rubber. Estimating... Eye Splice. F Face of Fascia Band. Fascia Band, Cleating to Planceer. Fascia Band, Face of. Fascia Band, Pattern For. Fastening Crossed . Fastening Fluted Section to Pediment. Fastening Rope Ends. Fastening Stays and Braces to Galvanized Iron Surfaces Feather End . Feather End of Yane, Pattern For. Felting, Specifications of. Felt Roofing .. Figure-Eight Knot . Finial . Finial, Ball For. Finial, Drawings . Finial, Iron For. Finial, Pattern For. Finials, Material For. Finials on Gable. Finial Staff of, Section For. Finial Yane of, Section For. Flashing, Specifications of. Flooring for Upper and Lower Staging. Flute Center Piece, Development of. Fluted Section, Fastening to Pediment. Fluted Sections of Pendant. Flute Pattern . Flutes Spiral .. Foot Mold . Foot Molding, Profile of. Foot Ruler. Forming Machine, Use of. Four-Sided Pyramid, Frustrum of. Four-Way Swivel. Frieze, Panel Sunk. PAGE 161 80 10 25 8 20 70 12 50 12 35 80 50 80 62 100 55 89 107 70 16* 54 00 9-j iy /V 1 I 51 92 91 175 175 80 67 50 50 155 49 156 12 24 6 48 51 56 15 INDEX 225 PAGE Frieze Section ... 12 Front Elevation of Tower. 197 Frnstrum of Cone, Stretchout for Envelope of. 147 Frustrum of Four-Sided Pyramid. 51 C Gable, Coping of. 91 Gable Cornice for Dormer Window. 185 Gable Cornice .83-126 Gable Cornice, Material For. 92 Gable Cornices, Stretchout For. 189 Gable, Finials on . 91 Gable Mitres. 13 Gable Moldings . 13 Galvanized Iron Sheeting, Specifications of. 88 Galvanized Iron Surfaces, Fastening Stays to. 62 Galvanized Iron Cornices, Specifications of. 87 Geometry, Descriptive . 13 Gutters, Specifications of . 87 H Half Hitch . Half Hitch and Timber Hitch, Combination of. Hammer, Slater’s. Hammock Hitch . Haswell’s Table of Safe Load of Ropes. Head Blocks . Head Blocks, Iron For. Head Blocks, Material For. Head Molds . Heating Zinc Sheets. Hemispheres Ornamental . Flip Moldings . Hitch, Clove. Hitch, Half . Hitch, Hammock . Hitch, Timber .. Hoisting Tackle, Management of. Horizontal Cornice . Horizontal Cornice Miters . Horizontal Miter Patterns. Horizontal Molding, Determination of Position for Each Point of.. Horizontal Molding Mitering, Differences in. Horizontal Moldings with Different Profiles, Miter Line For. 81 82 111 82 82 168 91 92 12 74 150 13 81 81 82 81 75 83 103 113 188 33 41 226 INDEX PAGE I Inking Attachment for Compass... Inside Mitres . Iron for Circular Supports of Balls. Iron for Copings. 91 Iron for Finial.. 217 Iron for Head Blocks. 91 Iron for Pilasters . 210 Iron Lookouts. 193 J Joining Brackets to Planceer. Joining Parts of Cornice. K Knife, Slater's. Knot, Bowline. Knot, Chain . Knot, Figure-Eight . Knot for Binding Timbers. Knot, Over-Handed . Knot on Double Pope. Knot, Eeef.. Knot, Sailor’s, Slip Clinch, etc. Knot, Square . .. Knot, Waterman’s . L Lever, Securing . Lineal Perspective . Lintel Cornice . Load Safe for Ropes. Lookouts, Iron . Lookouts, Wooden . Lookouts, Wooden, on Brackets. Loops, Emergency . M Machine, Beading. Machine, Crimping. Machine for Making Curved Moldings Machine, Farming, Use of. 29 28 112 79 79 79 79 79 79 79 79 79 81 72 7 13 82 193 59 193 80 143 140 144 48 INDEX PAGE Machine for Stamping Ornaments. 69 Machine for Stamping Ornaments, Dies For. 73 Main Braces Made in One Piece... 62 Making Sisal Ropes Heavy. 83 Management of Rope and Hoisting Tackle. 75 Marking Crayons. 8 Marlin Spike . 79 Material for Copings . 92 Material for Cornice . 92 Material for Crestings . 92 Material for Deck Cornice. 92 Material for Dormer Window. 92 Material for Finials. 92 Material for Gable Cornice . 92 Material for Head Blocks. 92 Material for Ridge Cresting. 92 Material for Turrets. 92 Material for Under Blocks. 92 Measuring of Cornices.•. 17 Measuring Dormer Window . 91 Mechanical Generalship, Scope For. 114 Metallic Skylights, Specifications of . 87 Method for Putting up Cornices in Sections. 59 Method of Stamping Ornaments. 75 Mitering, Differences in Horizontal Molding. 33 Mitering with the Turrets.. 122 Mitre, Horizontal Patterns for. 113 Mitre Line for Raking Molding. 127 Mitre Line for Two Horizontal Moldings with Different Profiles. . 41 Mitre Line with Profile Above or Below. 27 Mitre Patterns, Right Angle Return. 35 Mitre Pediment. 127 Mitre Right Angled Pattern For.'. 23 Mitres.•. 13 Mitres, Horizontal Cornice . 103 Mitres, Square Horizontal Development of. 31 Modillion Brackets . 12 Modillion Ornaments . 12 Mold, Dentil. 12 Mold, Foot. 12 Molding, Crown. 12 Molding, Curved for Turret. 150 Molding, Envelope of. 25 Molding, Mitering, Horizontal, Differences in. 33 Molding Raking Mitre Line For. 127 228 INDEX PAGE Moldings, Bed. 12 Moldings for Turrets . 138 Moldings, Hip. 13 Moldings, Gable . 13 Moldings, Ridge . 15 Molds, Head . 12 Mold, String . 12 N Necessary Qualities of Slate. Octagonal Tower, Covering of. Ornamental Ball and Star. Ornamental Conductor and Heads, Specifications of Ornamental Hemispheres. Ornamental Pillars, Area of. Ornamental Scroll Work, Stamped. Ornamental Turrets . Ornamental Turrets, Position of. Ornamental Center for Pediment. Ornaments . Ornament “Smoking” Side of. Ornaments, Circular for Cornice. Ornaments, Method of Stamping. Ornaments, Modillion . Ornament Stamping Machine... Ornament Stamping Machine, Hies For. Ornament, Zinc for Pediment. Over-Handed Knot . Outline of Turret . Outside Mitres . P Packing Stick . Paneled End Copings . Panel of Coping, Projection on. Panel Section. Panel Section, Pattern For. Panel, Sunk Frieze. Panels, Washboard . Paper Patterns, Weight For. Paper, Roofing. 109 209 178 87 150' 91 202 103 84 40 55 74 93 75 12 69 73 40 79 _L nj & 13 80 161 98 12 33 15 15 8 107 INDEX 229 PAGE Pattern for Arrow Head . 55 Pattern for Crown Molding. 35 Pattern for Deck. 35 Pattern for Deck Molding. 35 Pattern for Dentil Band. 30 Pattern for Fascia Band. 35 Pattern for Feather End of Vane. 55 Pattern for Flutes. 49 Pattern for Pillar. 104 Pattern for Planceer . 30 Pattern for Rays. 49' Pattern for Right Angled Mitre. 23 Pattern for Top Section of Pediment. 44 Pattern for Volute-Shaped Scroll. 184 Patterns, Bracket . 28 Patterns for a Finial. 51 Patterns for a Segmental Section of a Pediment. 44 Patterns for Panel Section. 33 Patterns, Horizontal Mitre. 113 Patterns, Mitre, Right Angle Return. 35 Patterns of Turrets . 135 Patterns, Paper, Weight For. 8 Pattern, Spear Head . .. .. 55 Patterns, Pediment . 39 Pediment .15-16 Pediment Center, Ornament For. 40 Pediment Columns .:. 40 Pediment Cornice . 205 Pediment, Fastening Fluted Section to. 50 Pediment Mitre. 127 Pediment Patterns . 39 Pediment Pilasters . 40 Pediment Pillar. 40 Pediment, Segmental Section of Pattern For. 44 Pediment, Stamped Zinc Ornament For. 40 Pediment, Top Section of Pattern For. 44 Pegs for Hanging up Rope. 68- Pencil Point Attachment for Compass. 7 Pendant, Fluted Sections of. 133 Perfect Alignment Essential. 136 Perspective Lineal . 1 Pieces, Center . Pilasters, Iron For. -1^ Pilasters, Pediment . ^0 Pillar Pattern . 230 INDEX Pillars. Pillars, Ornamental Area of. Pillars, Pediment . Placing Small Brackets in Position. Planceer. Planceer, Brace for Fastening. Planceer, Pleating Fascia Band to. Planceer, Joining Brackets to. Planceer Pattern. Planes of Secondary Stratification in Slate Polygons, Properties of. Position of Ornamental Turrets. Preservation of Tools. Pressed and Cast Zinc, Specifications of. . Preventing Unnecessary Waste of Rope. . . Profile Above or Below Mitre Line. Profile of Foot Molding. Projection on Panel of Coping. Properties of Polygons. Protractor Scales . Pulley Blocks . Pulley Wheel.:. Pyramid, Four-Sided Frustrum of. PAGE 103 91 40 58 12 61 59 29 30 110 9 84 68 88 77 27 24 98 9 7 82 82 51 R Raised Work, Blocking Up..« . 152 Raking Cornice . 126 Raking Mitres . 13 Raking Molding, Mitre Line For. 127 Ray Pattern . 49 Reading of Drawings. 13 Reef Knot . 79 Resistance, Crushing, of Slate. 109 Ridge Coping of Dormer Window, Surface of. 91 Ridge Cresting, Material For. 92 Ridge Moldings. 13 Right Angled Mitre Pattern. 23 Right Angle Return Mitre Patterns. 35 Ripper. 112 Roofers, Cement .-. 112 Roofing Felt . 107 Roofing Paper . 107 Roofing Stake . Ill Roof, Slating. 110 INDEX 231 S Rope Ends, Fastening. Rope, Management of . Rope, Pegs for Hanging Up. Rope, Preventing Unnecessary Waste of Ropes, Safe Load For. Ropes, Sisal, to Make Heavy. Rope-Strapped Block . Rope, to Splice. Rubber Erasers . Rules, Foot . Rules, Scale . PAGE 80 75 68 77 83 88 83 77 8 6 6 S Safe Load for Ropes. 83 Sailors Knot, Slip, Clinch to. 79 Scaffoldings, Bolts For. 65 Scaffolding for Cornice Work...! . . 64 Scale, Drawing to. 90 Scale Rules . 6 Scales, Degree . 7 Scales, Protractor .'. 7 Scope for Mechanical Generalship. 114 Scroll Pattern, Volute Shaped. 184 Scroll Work, Ornamental, Stamped. 303 Section, Frieze. 13 Section, Panel..*.13-15 Section, Spiral .’. 188 Sections for Staff of Finial. 175 Sections for Vane of Finial. 175 Securing Lever . 73 Segmental Section of a Pediment Pattern for. 44 Shears. 9 Sheeting, Galvanized Iron, Specifications of. 88 Sheets, Zinc, Heating. 74 Side of Ornament Smoking. 74 Sisal Ropes, Making Heavy. 88 Size of Zinc Sheets. 30 Sizes of Bar Iron. 19 Slate, Classification of . 109 Slate, Computing the Surface of. 108 Slate, Crushing Resistance of. 109 Slate, Necessary Qualities of. 109 Slate, Planes of Secondary Stratification in. 110 Slater’s Hammer. Ill Slater’s Knife . Ill *232 INDEX PAGE •Slate, Square of. 108 Slate, Square of, Nails for Laying. 107 Slate, Weight of . 108 Slating . 105 Slating a Roof . 110 Slating, Specifications of. 88 Sling, Bale. 82 Sling, Butt. 82 Sling, Cask. 82 Slip-Clinch. 79 Slip-Clinch to a Sailor’s Knot. 79 ’“Smoking” Side of Ornament.,. 74 Snatch Block. 82 Spear Head . 100 Spear Head Pattern . 55 Specifications of Conductors.. 87 Specifications of Copper Work.. . 88 Specifications of Cresting . 88 Specifications of Felting . 89 Specifications of Flashing. 89 Specifications of Galvanized Iron Cornice. 87 Specifications of Galvanized Iron Sheeting. 88 Specifications of Gutters . 87 Specifications of Metallic Skylights. 87 Specifications of Ornamental Conductors and Heads. 87 Specifications of Pressed and Cast Zinc. 88 Specifications of Slating. 88 Specifications of Tin, Galvanized Iron, Slate and Copper Work. ... 87 Specifications of Tinning. 88 Spiral Flutes . 156 Spiral Section . 183 Splicing a Worn Rope. 77 Spun Zinc Ball. 54 Square Bars for Cresting. 173 Square Horizontal Mitres, Development of. 31 Square Knot . 79 Square Mitres . 13 Square of Slate. 108 Square of Slate, Nails for Laying. 107 Squares, Tee . 5 Square Tower, Covering of. 209 Square, Wooden . 7 Staff of Finial, Sections For. 175 Staging, Brackets For.. 66 Staging, Flooring For. 67 INDEX Staging for Cornice Work. Stake, Roofing . Stamped Ornamental Scroll Work. Stamped Zinc Ornament for Pediment. Stamping Ornaments, Machine For. Stamping Ornaments, Method of. Stays, Fastening to Galvanized Iron Surfaces Steel, Straight Edge. Stick, Packing. Stop Block. Straight Edge Steel . Stratification, Secondary Planes of, in Slate. . Stretchout for Gable Cornices . Stretchout of Envelope for Frustrum of Cone. Stretchouts Spiral, Development of. String Mold. Sunk Frieze Panel . Surface of Eidge Coping of Dormer Window Sweeps . Swivel, Four Way. Swivel Joint . Swivel Joint for Vane. T Table, Drawing . Tackle Blocks . Tackle Hoisting, Management of. Tacks, Thumb. Tees, Three Way. Tee Squares. Three Way Tees . Thumb Tacks. Timber Hitch . Timber Hitch and Half Hitch, Combination of Timbers, Knot for Binding. Tinning, Specifications of. Tools, Cutter’s.. Tools, Drawing . Tools, Preservation of . Top Section of Pediment, Pattern For. Tower, Front Elevation of. Tret Angle . Triangles, Axonometrical. Truss. Turret, Cap of . 233 PAGE 64 111 202 40 69 75 62 5 80 12 5 110 189 . 147 159 12 15 91 7 56 56 176 1 82 75 9 72 5 72 9 81 82 79 88 3-5 7 68 44 197 10 10 12 151 234 INDEX Turret, Curved Molding For. Turrets, Area of. Turrets, Material For. Turrets, Mitering With. Turrets, Moldings For. Turrets, Outline of. Turrets, Ornamental . Turrets, Ornamental, Position of. Turrets, Patterns of. U Fse of Farming Machine. Under Blocks, Material For. V Valleys. Vane, Arrow . Vane, Feather kind of Pattern For. . . . Vane of Finial, Sections For. Vane, Swivel Joint For. Volute. Volute Shaped Scroll, Pattern For. . . . W Washboard Panels. Waste, Allowance For. Waste of Rope, to Prevent. Waterman’s Knot . Weight for Paper Patterns. Weight of Copper. Weight of Nails Per Square of Slate. .. Weight of Slate. Wheel Pulley . Windows, Dormer, Material For. Wooden Braces . Wooden Bricks . Wooden Lookouts. Wooden Lookouts on Brackets. Wooden Square. Working Drawings of Cornice. Work of Cutter. Worn Rope, Splicing. Z Zinc Ball, Spun. Zinc Ornament for Pediment. Zinc, Pressed and Cast, Specifications of Zinc Sheets, Heating. Zinc Sheets, Size of. PAGE 150 91 92 122 138 122 103 84 135 48 92 94 100 55 175 176 183 184 15 92 77 81 8 19' 107 108 82 92 63 60 59 193 7 96 3 77 54 40 88 74 20