iS SSJz = == — a) Uj AVERY LIBRARY Iii] COLUMBIA INIVE JiMDY Ly eT i le buying windows or other woodwork, as in buying any other important commodity, we are all seeking the greatest value per dollar invested. Modern business has demonstrated that this greatest value can be attained when the product is manufactured in quantities. Quantity production, of course, can only be obtained by limiting the output to certain sizes, certain woods and certain patterns, all of which have been adopted as standard after long ex- perience in meeting the needs of homebuilders. In the design of windows and sash, as well as in the design of all Curtis Wi6dd- work, the cooperation of a representative section of the architectural profession has been sought. Their suggestions have been applied to the several problems of design, materials, construction methods and workmanship. The complete line of Curtis Woodwork is produced on this basis, and therefore represents the maximum value that you can get for your woodwork dollar. Each window shown in this section of the Curtis Catalog No. 500 is made in quantities (except where otherwise specified). These are ready for shipment, subject to prior order, in White Pine in the sizes listed. The face measurements of stiles and rails, as an aid to the selection of appropriate hardware, are listed on the various pages where required. Naturally, in different sections of the country, local demand varies. For that reason, complete stocks of all designs and sizes of windows or other items of woodwork are not carried by all Curtis plants and all dealers. You can be assured, however, that any material you select from the Curtis Catalog No. 500 is available for immediate shipment from one of the Curtis factories. If your woodwork dealer does not have in his own stock the particular piece of wood- work you select, he can consult his Curtis Catalog Supplement and tell you from which factory your order can be shipped, how quickly, and the price. The sizes listed on each page are those which are made in large quantities, with resultant lower cost. Obviously, you will get prompt service and guaran- teed unvarying quality when you order from these lists. On material which is ‘‘odd’’ as to size, design or wood, quantity savings cannot, of course, apply. Cunmris WOODWORK T8 DISTRIRGTaD Bw CurRTIs _ BROS Os CO. eed te ee OL COn ta GURTIS GY ALE COs, Gui eee ee eV USA 1S. Curtis Sasa 6c Door Co... =) otoux City, Ia: Curtis, TowLe & Parne Co. . . . Lincoln, Neb. Curtis, TowLe & Patne Co. . . . Topeka, Kan. Curtis DoorrerSAsH Coun, ey eChicazo, lle Curis Derrort Go. 1) a Detroiter Miche Curtis-Y ALE-HoLianp Co. . Minneapolis, Minn. Curtis CoMPANIES INCORPORATED . . Clinton, Ia. Sales Office: 25 W. 44th St., New York, N. Y. Copyright 1927 Curtis Companies Inc. Clinton, Iowa WINDOWS by CURTIS NSIC USC GIA, Interior an xterior WOODWORK Standardized 18 66 CurTiS ae W hat Makes Curtis Windows Better? H*%5 you ever wondered what it is that makes one brand of windows better than another? Why should you trouble to look for the Curtis trademark on the windows you buy for your house? Of two windows which may look very much alike, what is the difference that makes the Curtis product the wiser buy? If you were to go through the sash department in one of the Curtis factories, your interest would be aroused by some of the operations which are shown in the photographs on these pages. As you paused to watch these processes and follow the Curtis window in its making, your question would be answered—why Curtis windows are better. After seasoning, the lumber that is to be used in making Curtis doors and windows goes first through the cutting department, where it is cut to usable widths and lengths. Then it goes through a planer to be sur- faced to an even thickness, and is then sorted according to the use that is to be made of it. Longer and wider pieces go to the door department, while narrower and shorter pieces are used in window-making. T HE first operations in making Curtis windows are to cut the pieces of wood to exact lengths, and to make the mortises (slots) and tenons (tongues) which hold the wood parts firmly together. The tenoning of the bottom rail is performed on the ma- chine at the left, called a@ “‘double-end tenoner,”’ because it machines both ends of the stock at the same time. On the machine below, through-mortises are cut in the stiles, to member with the tenon of the bottom rail. Slip-mortises are cut in the stiles (the vertical wood parts), to member with the top and check rails, forming a joint that, when pinned, will resist the upward and downward thrust of opening and closing the window. Only the bottom rail of the bottom sash has a through-tenon instead of @ slip-tenon, for still greater strength at a needed point as shown at the left. T HE Curtis rabbeted check rail described on pages7 and 10 is made on the machine directly below, which also molds the rail to receive the glass. Small wood bars which divide the glass into smaller panes are molded in a similar way. In windows which are to have these smaller panes, the chisel mortiser, below at the right, cuts holes in the stiles and ratls to receive tenons on the dividing bars and hold them firmly. ee HE process of cutting the groove for the sash cord and boring the hole for the knot is accurately done on the machine directly above. The completely machined sash stock is trademarked. To give the customer the advantages of quantity production, even on small orders, large quantities of machined sash material are always carried in stock. Assembling sash material into windows of the required size and design, as shown at the right, is followed by placing each window into a clamp to hold it securely, while steel dowels are driven and set on the machine di- rectly below. This is called ‘’ pinning.”’ | BN IED the window is sanded, ready for your painter without further labor on the job. A special machine, shown below at the left, smooths the check rail and both sides of the sash in the same operation. Curtis windows are furnished either glazed or unglazed. When glazed at the Curtis factory, zinc ‘‘ points’ are driven into stiles and rails to hold the glass and then putty is applied. Both operations are shown directly below. The special groove, described on page 16, provides additional anchorage for the putty. These are some of the operations which enter into the construction of a Curtis window before it comes to you. S WINDOWS C-2502 and C-2504 Winvow C-2502 (two-light, 14-inch check rail window, at the left) is furnished in the following sizes: Glass Opening Glass Opening Glass Opening Glass Opening 224 1- 4x4-6 20 exeZ2 2-0 x 4- 2 24 x 26 2-4 x 4-10 28 x 24 2- 8x 4- 6 12 xe26 l- 4x 4-10 PA) xe 74 2-0 x 4- 6 IZ e233 an Xe, PAS) 6 PAS) 2- 8x 4-10 14 x 26 1- 6 x 4-10 20 x 26 2-0 x 4-10 Wy 3x 30) 2-4 x5-6 28 x 28 2- 8x 5- 2 16 x 16 l- 8x 3- 2 20 x 28 2-0 x 5- 2 265 x 18 2-6 x3-6 28 x 30 2- 8x 5- 6 16 x 20 1- 8x 3-10 2exe2e. 2-1 x 4- 6 Te 55 BY) 2-6 x 3-10 ral) Sie ANG 2-10 x 3- 2 16 x 24 1- 8x 4-6 BA xe ZS Dal sei 2 WS 3 PP 2-6 x4-2 30 x 18 2-10 x 3- 6 16 x 26 1- 8 x 4-10 22 x 20 2-2 x 3-10 A) 3 PA 26 x46 30 x 20 2-10 x 3-10 16 x 28 Ie Giox bs Z DD Se 0 2-2 x 4- 6 ZOmESEZO 2-6 x 4-10 30 x 24 2-10 x 4- 6 18 x 20 1-10 x 3-10 SS 2-2 x 4-10 26 x 28 = ONeeexe Oe 30 x 26 2-10 x 4-10 18 x 24 1-10 x 4- 6 22 xeLS D1, Xo 72 BS. >< BO 2-65 xX 5-16 30 x 28 2-10 x 5- 2 18 x 26 1-10 x 4-10 PAX 16 2-4 x 3- 2 Zk 38 PO Bt NY, 30 x 30 2-10 x 5- 6 18 x 28 1-10 x 5- 2 24 x 18 2-4 x 3- 6 Taf 38 eA PH 56 BSG) 32 x 26 3- 0 x 4-10 20x 15 2- 0x 3- 0 24 x 20 2-4 x 3-10 27% x 24 2-74% x 4- 6 BAS ES) 3- 0x 5- 2 20 x 16 2- 0x 3- 2 Jil Se WE 2-4 x 4- 2 271% x 28 2-74x5- 2 36 x 24 3- 4x 4- 6 20 x 18 2- 0x 3- 6 24 x 24 2-4x 4-6 (os) 3x 740) 2-8 x 3-10 36 x 26 3- 4x 4-10 20 x 20 2- 0 x 3-10 36 x 28 3- 4x 5- 2 Face measurements: Stiles, 2 inches; top rail, 2 inches; bottom rail, 3 inches. *Winpow C-2504 Cfour-light, 18¢-inch check rail window, at the right) is furnished in the following sizes: Glass Opening Glass Opening Glass Opening Glass Opening 12 x 20 2- 4x 3-10 12 x 24 2-4 x 4- 6 WA 36248 2-4 x 4-10 14 x 28 2-8x5- 2 Face measurements: Stiles, 134 inches; top rail, 2 inches; bottom rail, 3 inches. *Also carried in Western opening sizes, which are one inch wider. The Trim shown with Window C-2502 is C-5300; with Window C-2504, Casing C-5305. On page 7, Trim C-5050 is shown with Window C-2508. 6 Keeping the Heat In and the Cold Out fe A WINDOW has two functions: to admit light, and to provide ven- tilation. To accomplish these two purposes, windows must be made with the utmost care. From the standpoint of weather resistance, the weakest point of a window is the check rail—where the upper and lower sash come to- gether. This is a place for wind to blow through and for heat to escape, when the sash come together in a straight or even a beveled line, as in ordinary windows. Curtis engineers, after much experi- mentation, evolved the rabbeted (notched) check rail shown below in cross section. Seven times as much wind pressure is required to pass through this rabbeted meeting rail as through plain ones. RABBET IN CHECK RAIL. WINDOW C-2508 on page 6 have been long in general use and are retained in this catalog because of their popularity. Wherever inexpensive but well-made windows are wanted, either of alee term ‘“‘double-hung’’ is applied to windows composed of two separate slid- ing sash, as distinguished from casements, which swing, in or out. The windows on this page and page 6 are double-hung win- dows. The panes of glass are called “‘lights.”’ Thus on page 6 are shown the two-light and the four-light window, and on this page the eight-light window. Two-light windows are much used, for all kinds of buildings. Both C-2502 and C-2504 these can be depended upon for durability. Window C-2508 on this page is a tall, narrow opening of excellent proportions, for small wall spaces. These are especially desirable also for grouping, producing an effect similar to casements. Often these windows are used as side units in bays. Winpow C-2508 is furnished in the following sizes: *Cuecx Raw 13¢-inch **Pr arn Rait 14-inch Glass Opening Glass Opening Glass Opening Glass Opening 8x 10 1-8 x 3-10 xe UZ 1-10 x 4-6 8 x 10 1l- 8 x 3-10 10 x 12 2-0 x 4-6 19) x IZ 2- 0 x 4-6 ox 12 1-10 x 4- 6 10x 14 2-0 x 5-2 Face measurements: Stiles, 17¢ inches; top rail, 134 inches; bottom rail, 234 inches. *Also carried in Western opening sizes, which are one inch wider. **Also carried in Western opening sizes, which are one-half inch wider. For information regarding existing stocks, shipping points and prices, consult your Woodwork dealer's Curtis Catalog Supplement. Wood ‘Dividing ‘Bars Add to Good Looks ofp Oxs of the many important de- tails that make a Curtis window good-looking is the use of wood bars or muntins that divide the glass into smaller panes. In the cross sec- tion below, the lined portion is the wood bar. The glass coud is fitted against the notch in the bar and held in place with zinc brads and sealed with putty (dotted) on the outside of the window. Note the pleasing molded outline of the muntins in- side the window. They are narrow in order not to obstruct the light, but deep, to give character to the window. Where these bars meet other wood parts of the window, they are held with a tenon joint. Muntins of this kind in Curtis win- dows give them an unusually attrac- tive and finished appearance. WINDOW C-2512 for such good-looking designs as this twelve- light double-hung window. It has been ex- ceptionally popular, especially for Colonial N | UCH of the appeal which attaches to old houses of every country is due to their small-paned windows. The small lights with their painted wood dividing bars carry out the other structural lines of the building. In recent years there has been a revival of on preciation among homebuilders for these di1- vided-light windows. Architects and interior decorators always favor them. The increasing demand for windows of this sort is responsible work. It is made up with lights of different sizes, thus securing openings of different widths and heights. It is always best to have the windows in a house uniform in size as far as possible. Windows C-2508, page 7, and C-2516, page 10, may be used when wider or narrower windows are required. Winvow C-2512 is furnished in the following sizes: **Cueck Raix 13¢-inch Prain Rai 14-inch Glass Opening Glass Opening Glass Opening Glass Opening 8 x 10 2-4 x 3-10 8) 56 1S} 2- 7 x 4-10 8 x 10 2-4 x 3-10 TOR e2 2-10 x 4-6 Ora, 2-7 x 4- 6 9x 14 Dx SxaZ 2-7 x 4- 6 10 x 14 2-10 x 5-2 10 x 12 2-10 x 4- 6 Face measurements: Stiles, 134 inches; top rail, 134 inches; bottom rail, 234 inches. **Also carried in Western opening sizes, which are one-half inch wider. With Window C-2512 above, Trim C-5000 is shown. Window C-2513 on page 9 has Trim C-5200. No hardware is furnished with Curtis windows. wf g be Curtis Frames Increase the Coxiness of the Home ote Your windows can be only as weatherproof as the frames which hold them in the walls. Curtis frames have many distinctive weather- resisting features. Below is a sec- tion through the sill of a Curtis frame. Both the sill and the lower edge of the window slope to the out- side, to shed water. At the inner point, where they meet, there is a rabbet (notch) in the sill (A). Your carpenter bevels the bottom of the sash to fit this notch and the bevel of the sill. This tight joint prevents wind or rain from beating in, under the window, and at the same time acts as a wedge to hold the window more tightly in the frame. Another notch (B) provides a shoulder against which the screen, shutter or storm sash fits snugly. WINDOW C-2513 Glass 8x 10 INe single feature of the exterior does more to make or destroy the good appearance of a house than the windows. Whatever its type, a house with windows poorly propor- tioned, badly placed or ugly in design cannot be successful. Great care should be taken in selecting suitable windows. Here is a com- panion design to the window on page 8. This is a twelve-light circle-head window to be used in houses with round-topped openings, such as those of Spanish or Italian influence. These Curtis windows at once lend distinction to a building and lift it out of the ordinary. Notice the arched top, which is a perfect semi-circle, both in the glass and wood por- tions of the window. The curved wood top rail is made of two pieces of wood, in each of which the length is with the grain of the wood for greater strength. Curtis citcle-head windows are made with the same construction features that have made all types of Curtis windows so satisfactory. Winpvow C-2513, 13%-inch check rail, is furnished in the following sizes: Glass Sail2 Opening 2-4 x 4-014 Glass NOR 2 Opening 2-7 x 4-734 Face measurements: Stiles, 134 inches; top rail, 134 inches; bottom rail, 234 inches. For information regarding existing stocks, shipping points and prices, consult your Woodwork dealer’ s Curtis Catalog Supplement. Opening 2-10 x 4-914 Glass 8x 10 Sexe, Curtis Windows Tight Against the Weather fe Ir is said that one-fourth of the fuel burned in the average house is wasted, due to window leakage. The weakest point of most windows, from the standpoint of weather resistance, is the check rail or meet- ing rail, where the two sash come together. Here there is a chance for the escape of heated air and the leakage of cold air and of water which will destroy the comfort of the house and ruin walls and dra- peries. Curtis windows are strengthened at this point by a rabbeted (notched) check rail devised in the Curtis fac- tories. This rabbeted check rail is shown in cross section in the detail below. Comparing it with ordinary windows, as shown in the detail on page 11, you will see how effectually the Curtis rail guards against leak- age of wind and rain. IN CHECK RAIL. WINDOW C-2516 Gye of the new Curtis designs is this sixteen-light window. Its satisfying proportions hold good in any of the sizes listed below. The sixteen-light window is a reproduction of those found in many houses of Revolu- tionary times. A large window is often de- sirable either for furnishing extra light to the interior, or for architectural effect. The use of small panes in this Curtis window fills the need for large glass area, without losing good appearance and uniformity of design. Since the panes are of similar size to those in other Curtis windows, a harmonious effect can be carried out throughout the house, regardiess of the size of the openings. This matching up of patterns is just one of the fine points of Curtis manufacture that make it well worth while for the homebuilder to select Curtis Woodwork. The Curtis trademark on windows assures you of design that is architecturally correct and guarantees that they are made with Curtis methods—which means durability, ease of operation and long life. Look for the Curtis trademark on the windows you buy. Winvow C-2516, 13-inch check rail, is furnished in the following sizes: Opening Glass 3-0 x 3-10 OxalZ, 3-0 x 4- 6 9x 14 Opening Glass Opening 3-4 x 4-6 KOs WZ, 3-8 x 4- 6 3-4 x 5-2 LORS 3-8 x 4-10 10 x 14 3-8 x 5- 2 Face measurements: Stiles, 134 inches; top rail, 134 inches; bottom rail, 234 inches. Glass sizes listed are approximate. Window C-2516 above has Trim C-5150. Window C-2518, on page 11, has Casing C-5205 and Backband C-5251. No hardware is furnished with Curtis windows. ee How Curtis Rabbeted Check ‘Rail Saves Coal die Tas sketches below show two common methods of making the meeting rails of double-hung win- dows (where the two sash come to- gether at the center). Figure A shows the simpler method. Obviously it offers little resistance to leakage of air or water from gusts of wind or driving rain. Figure B shows the common beveled joining, which is a step in advance, but which is still far from weather-proof. The Curtis rabbeted check rail, a Curtis feature, shown on pages 7 and 10, is more nearly weather-tight than either of these. Looking at these diagrams, it is not hard to understand how rain and wind that could force a way through such rails as A and B, would be turned aside by the rabbeted Curtis check rail. \ | 4 a || 1 WINDOW C-2518 pO design to the sixteen-light Square-topped window shown on page 10 is this one, in which the upper sash is rounded and has ten panes instead of eight. Compare it with the twelve-light round-topped win- dow on page 9 to get the effect of the greater width. The lower sash of circle-head windows can of The wood bars or muntins form a most at- tractive design which requires little or no draping to become a beautiful feature of the interior. It is not enough that windows should be well designed and well placed, however, so that they form a good setting for a beautiful view. The cheapest windows and frames you can Glass 8x 10 course not be raised higher than the length of one pane, but, as these are usually used only in the main rooms on the first floor, this is not a disadvantage. Square-topped windows of corresponding design are ordinarily used in the rest of the house. buy might do that. But they could not have the Curtis weatherproof construction. The small amount additional which it may take to equip your home with the best instead of the poorest windows and frames is an invest- ment in comfort and in fuel-saving. Winpow C-2518, 13¢-inch check rail, is furnished in the following sizes: Opening 3-0 x 4-474 Glass 9x12 Glass IO) Opening 3-4 x 5-04 Face measurements: Stiles, 134 inches; top rail, 134 inches; bottom rail, 234 inches. Glass sizes listed are approximate. For information regarding existing stocks, shipping points and prices, consult your Woodwork dealer's Curtis Catalog Supplement. vot 11 k... Opening 2-8 x 5-2)4 Glass PEbse MMS) 24 x 16 24x18 24 x 20 24 x 22 24 x 24 DAA 26 24 x 28 Made with Extra Care, Curtis Windows ‘Work’ sip V INDOWS that won’t ‘“‘work’’ have destroyed many a good temper. Extra care taken in machining Curtis windows insures ease of operation and lasting service. The figure below shows the cleanly cut groove and double groove for the sash cord and bore for the knot. These are accu- rately machined at the Curtis fac- tory, to allow the sash toslide freely, and to hold the cord in its place. They are ready for the workman on the job without further fitting. The check railis tenoned, or tongued, to fit the slot in the stile. This joint is reinforced with steel dowel pins so that it cannot pull apart when the window is shoved up or down, as would a butt joint or a miter. DOUBLE GROOVE WINDOW C-2556 Viens with small panes in the upper sash and a single large pane in the lower sash are called ‘‘top-divided”’ windows. They represent a compromise in design between the two-light window and the window with both sash divided into small lights. In Win- dow C-2556, the upper sash is divided into six rectangular lights, while the lower sash is a single light. Top-divided windows are popular with home- builders, particularly for houses which do not follow any definite period in architecture. Though primarily intended for light and ven- tilation of the interior, windows are an im- portant element in the appearance of the building as a whole, giving it a touch that is good or otherwise, according to whether the windows are well selected. Winvow C-2556, 13-inch check rail, is furnished in the following sizes: Opening Glass Opening 2-4 x 3- 0 ZAG) 6, MS) 2-6 x 3- 0 2-4 x 3- 2 26 x 18 2-6 x 3- 6 2-4 x 3- 6 Reo ZY 2-6 x 3-10 2-4 x 3-10 ZOrxeae 2-6 x 4- 2 2-4 x 4- 2 26 x 24 2-6 x 4- 6 2-4 x 4- 6 26 x 26 2-6 x 4-10 2-4 x 4-10 26 x 28 2-6 x 5- 2 2-4 x 5- 2 Glass Opening Glass DES AD) 2-7 x 3-10 28 x 28 PLS DP 2-7x 4- 2 30 x 24 PAL 8 eh 2-7 x 4- 6 30 x 26 PHL 3 PRS) 2-7 x 4-10 30 x 28 2-10 27 x 28 PLES 2. 2) Oy) 6 PPE 3- 0 28 x 24 2-8 x 4- 6 BE AS 3- 0 28 x 26 2-8 x 4-10 32 x 28 3- 0 Face measurements: Stiles, 2 inches; top rail, 2 inches; bottom rail, 3 inches. A simple head casing Trim C-5400 is shown with Window C-2556 above. On page 13 the finish on both windows consists of Trim C-5350.