US2893235A - Combined window frame and concrete form - Google Patents

Description

July 7, 1959 H. H. GOLDBERG COMBINED WINDOW FRAME AND CONDRETE FORNI Filed March 28, 1956 IN VEN TOR.

,8 u 0 .6 8 u. 6 .9 7214/1 2 Q .Q .n a a 6 @0^ 4... IIMIIIIVLIEIIVIYOH/ m 0 o M e 8 A. A 2 t 4 4i 0. 2 r/O Ml/ u. H.,.. fw: 0 L v. m u n 4.a

United States Patent() COMBINED WINDOW FRAME AND CONCRETE FORM Harry H. Goldberg, Denver, Colo.

lApplication March 28, 1956, Serial No. 574,461

4 Claims. (Cl. 72-98) This invention relates to metal window frames; and more particularly, to a combination window frame and concrete form.

A common problem faced by building contractors is that of forming window openings in concrete Walls and the like. There are, at present, two widely used methods of forming window openings in concrete structures. The rst of these, which is perhaps the most common, entails the use of wooden window opening forms attached between the spaced walls of the concrete wall forms. After the concrete has set, these Wooden forms are removed and cannot be reused. The principal disadvantage of this type of forming is the cost of the wooden forming material, the time required to install and remove the forms,'and the fact that the forms are not re-usable.

The second widely used forming method employs reusable metal forms. These forms are, however, quite expensive and are generally rented or leased by the contractor. The forms are made in two parts, one of which provides the inside of the window opening and the other the outside when bolted together. The principal disadvantage of this type of window form is the fact that after each use the forms must be removed from the window opening, cleaned and oiled before they can be used again. Although the metal forms are reusable, the aforementioned operations require considerable time and labor and, therefore-their use adds to the overallbuilding costs.

Also, a concrete wall has -a tendency to create pockets land concentrations of aggregate underneath the sill of the Window form due tothe difficulty in working the concrete into this position. The conventional window frame is designed with head, sill and jamb memberspwhose Y 4ingvthe window opening are left exposed and present an lrunsightly and unlin'ished appearance;

It is, therefore, the principal object of the present invention to provide a combined window frame and concrete form which remains permanently in place after the concrete wall is poured, thus eliminating the necessity for dismantling the forms, cleaning them and thereafter installing the conventional window and frames.

A second object of the invention is to provide a window construction in which the frame members are of suliicient depth to lap the foundation and provide a iinished appearance which covers any imperfections in the concrete surrounding the window opening.

Another object of the invention is to provide a combined window frame and concrete form which effects a considerable reduction in time and labor required for installation.

Additional objects of the invention are to provide a combined window frame and concrete form which is simple, relatively inexpensive, decorative in appearance, and ideally suited for use in forming a window opening in any type of preformed concrete wall or foundation.

Other objects will be in part apparent and in part pointed out specifically hereinafter in connection With the ICS description of the drawing which follows, and in which:

Figure 1 is an elevation of a combined basement window frame and concrete form embodying the present invention showing the outside face thereof;

Figure 2 is a vertical section takenalong line 2-2 of Figure 1; and

Figure 3 is a horizontal section, a portion of which has been broken away to conserve space.

Referring now to the drawing, reference numeral 10 indicates the combined window frame and concrete form of the present invention which will be seen to comprise a head 12, a sill 14 and jambs 16 and 18. In general cross section each of the frame members 12, 14, 16 and 18 of the window frame are channel-shaped having a web 20 and integral flanges 22 and 24 extending longitudnally along the outside and inside edges thereof. Flange 22 is on the inside of the window frame 4and flange 24 is on the outside. The tianges lie parallel to one another in spaced relation and extend in the same direction from the web.

ln the particular construction shown, the specific cross sections of the head 12 and jamb members 16 and 18 are identical; whereas, the cross section of the sill 14 is slightly modified and corresponding parts thereof will be identified by adding the letter a to the numerical designators.

. 22 -and 24 lie in position to lap the outside face 28 and inside face 30 of the concrete wall and hide any imperfections therein adjacent the window opening. The frame also performs the combined function o-f a concrete form for the Window opening When positioned as shown in Figure 2 between the outside and inside Walls 32 and 34, respectively, of the wooden foundation form.

Outside flanges 24 and 24a are provided with a plurality of spaced openings 36 to receive nails 38 by means of which the Window frame 10 is attached to the outside Wall of the foundation form which isrcustomarily erected first. After the window frame is in place, as shown Vin Figure 2, the inside Wallvof the foundation form 32 vis erected and held in place against inside flanges 22 and 22a thereof -by conventional form ties 40 and 2 x 4s. 3,2.

- The concrete is then poured into the form and allowed to set; whereupon, the foundation forms are removed and the projecting ends of the form ties and nails-38 clipped.

.In this manner the windowframe becomes permanently anchored in the concrete wall andprovides a finished frame or surround for the window sash 44 and screen 46. Following removal of the foundation forms, a lintel (not shown) is added along the top of the foundation and window frame to support the building wall indicated by dottted lines in Figure 2. Although the screen 46 and window 44 have been shown in place in Figure 2 for purposes of illustration, they generally will not be fixed in place inside the frame or glazed until after the forms have been removed.

Referring now in particular to Figures l and 3, it will be seen that the head, sill and jambs of the window frame of the present invention are formed to receive the conventional window sash and screen. In the particular form shown, the head and jamb members have identical cross sections which include an integral rib 48 forming an abutment against which sash 44 rests in closed position and frame 50 of the screen abuts. The head and jambs are also shown provided with a step 52 integrally formed in the web in spaced parallel relation to the integral n'b 48 to provide a second abutting surface for window sash 44. The particular window sash illustrated is formed from T-iron which provides two surfaces by which the sash may be sealed against the frame. Of course, in

those conventional constructions in which the window sash is formed `of angle iron rather than T-iron, step SZ may be eliminated. y

Web 20a of the sill 14 is formed to provide a first step 54 positioned along the inside of the window sash 44 and a second step 56 in spaced parallel relation thereto lying along the inside of the screen frame 5ft. The web 20a preferably slopes downwardly from step 54 to integral flange 24a in order that water may drain therefrom.

The screen is held in place by conventional fasteners 58, shown most clearly in Figure 3. Window sash 44 is preferably removably attached within the window frame for swinging movement about an axis lying along its lower edge in the conventional manner and is retained in place by a strut or the like 6) indicated by the dotted lines in Figure 2. The window sash is provided with a conventional latch 62 which cooperates with catch 64 canried'by the head to hold the window in closed position.

Although the present invention has been described in connection with a specific basement window assembly of the type formed in a foundation, it will be apparent to one skilled in the art that the combined window frame and concrete form of the present invention is equally adaptable to use in any preformed concrete wall for forming window openings and providing a window frame therein.

Having thus described the many useful and novel features of the combined window frame and concrete form of the present invention it will be seen that the many useful objects for which it was designed have been achieved; and, therefore, I claim:

1. In `a combined window frame and concrete form rfor making a window opening in a concrete wall or the like, an elongated head member and an elongated spaced substantially parallel sill member, said head member and said sill member having the end portions thereof connected to one another by substantially parallel spanning elongated jamb members, each of said members having a substantially channel-shaped cross section formed by a web portion and outwardly extending spaced substantially parallel inner flanges and outer support flanges depending therefrom, said support flanges, being provided with apertures adapted to receive fasteners for attaching said frame to a concrete wall form, the flanges of each of said members cooperating to provide a planar face at both the outside and inside of the frame adapted to fit flush against the opposed panels of a concrete wall form when placed therebetween, each of the web portions of said head member and said jamb members having a longitudinally extending step defining a first substantially planar surface facing toward the inner flanges thereof for engaging one surface of a window sash, the

web portion of said sill member having a longitudinally extending step defining a second substantially planar surface facing toward the outer flange thereof, said last mentioned surface being disposed in a plane closely spaced to the plane in which said aforementioned surfaces are disposed for engaging the opposite surface of the window sash, each of said jamb members and said head member having a longitudinal rib formed in the web thereof in spaced parallel relation to the steps thereof in position to provide a third planar surface facing toward the inner flanges thereof serving as an abutment and seal for three edges of the window sash on the inside thereof and providing a fourth planar surface facing toward the outer flanges thereof serving as an abutment and seal for three edges of a screen on the outside thereof.

2. A device as dened in claim 1 wherein said sill member has a second step formed therein and defining a fifth planar surface which lies in the same plane as said fourth planar surface for providing an abutment and seal for the fourth edge of the screen.

3. A device as defined in claim 2 wherein the web of the sill defines a first sloping surface between the steps thereof and a second sloping surface 4between the second step and the outer flange thereof, each of said sloping surfaces sloping downwardly toward the outer flange.

4. A method of forming a window opening in a concrete wall which comprises erecting an outside wall of a foundation form, rigidly securing a combined window frame and concrete form only to the outside wall with an outer support flange of the combined form flush with the adjacent surface of the outside wall by driving fasteners through openings provided in the outer support flange of the combined form and into the outside wall, erecting an inside wall of the foundation form in spaced relationship to said outside wall and with an inner support flange of the combined form flush with the adjacent surface of the inside wall, `and casting concrete in situ between said inside and outside walls and in surrounding lrelationship to the combined form, then removing the foundation form from the hardened concrete wall and removing the projecting ends of the fastener.

References Cited in the le of this patent UNITED STATES PATENTS 1,640,595 Buss Aug. 30, 1927 2,307,678 Hayes Jan. 5, 1943 2,652,907 Miller Sept. 22, 1952 2,787,820 Shields et al. Apr. 9, 1957 FOREIGN PATENTS 511,780 Belgium June 14, 1952

Images