US1956000A - Stamped metal sash - Google Patents

Description

April 24, 1934. I A. P. BALL.

STAMPED METAL SASH Filed April 6, 1931 2 Sheets-Sheet l Patented Apr. 24, 1934 iiidiilhh STATES PATENT @FFEQE STAMPED BEETAL SASH poration of Michigan Application April 6, 1931, Serial No. 528,193

Claims.

Figure 2 is an elevational view of one of the ,sash members;

Figure 3 is a similar View of the reverse side with the glass stops and glass removed.

Figure 4 is an enlarged fragmentary sectional view taken substantially on a plane indicated by line 44 in Figure 1;

Figure 5 is an enlarged fragmentary sectional view taken substantially on a plane indicated by line 55 in Figure 1;

Figure 6 is a vertical fragmentary sectional view taken substantially on a plane indicated by line 6-6 in Figure 2;

Figure '7 is an enlarged transverse sectional view taken substantially on a plane indicated by line 7-7 in Figure 3;

Figure 8 is a fragmentary enlarged detail sectional view taken substantially on a plane indicated by line 8-8 in Figure 3;

Figure 9 is a fragmentary detail perspective View showing the structure at the juncture of the glass stops, and

Figure 10 is a perspective view of the glass stop imember employed at the juncture of the glass stops.

Referring now particularly to the drawings wherein like reference characters indicate like parts, it will be noted that there is illustrated a frame 10, in which the sash is mounted. As illustrated in Figures 1, 4 and 5 this frame comprises a center mullion bar 11, provided with lateral flanges 12, the side, top and bottom flange members being of substantially the cross section illustrated in Figure 5 and comprising a lateral flange 13, against which the sash rests in closed position, these flanges 13 being in the same plane as the flanges 12 of the inullion bar. However, the frame may be of any preferred or desired construction.

The sash, which is illustrated without glass stops, glass or other fixtures in Figures 3 and 7, is indicated generally by the reference character 14, and comprises an integral one-piece construction of a cross-sectional shape which permits the same to be stamped in one piece from a sheet of metal. This is in contradistinction to prior sash struc-. tures which are made of separate pieces fabricated to form the sash.

The sash is stamped from a fiat sheet of metal and shaped to provide box-shape side, top, and bottom frame portions 15, and longitudinally and transversely U-shaped channel portions 16, which constitute the muntin bars of the structure. The metal is removed between these muntin bars as indicated at 17 to provide the openings for the glass of the sash.

As seen more clearly from Figure '7, the side, top, and bottom box-like frame members are, during the first stamping operations, shaped into substantially channel formations with laterally extended angular flanges 18 at one vertical edge and at the top and bottom thereof, and with an angular shaped flange 19 at the other edge thereof. The flange 18, is then bent back along the line 18. The flange 19 is bent along the line 19. To complete the box-like frame portions, the side flange portion 19 is then welded along the line 20 and the flange 18 is Welded along the line 21. This produces a rigid frame structure for the sash as will be obvious.

The channel shaped portions 16 which constitute the muntin bars, terminate in laterally extending flanges 16', which provide rests or stops for the glass in a manner to be fully and hereafter set forth.

The glass stops illustrated in perspective View in Figure 9 comprise substantially L-shaped strips 22. These strips are arranged in pairs with one leg of each strip: located within the U-shaped muntin bar 16, and with the other flange 22 overlying the glass 23 as illustrated. Obviously these glass stop strips are located in both the longitudinally and transversely extended muntin bars 16 and cooperate with the flanges 16 thereof to removably secure the glass lights in place.

For removably securing the glass stop strips to the sash, I provide bolts 24 which are arranged at each juncture of the muntin bars and at the points where these muntin bars connect with the side, top, and bottom frame members as is clear- 1y illustrated in Figures 2 and 3. The threaded ends of these bolts are engaged in nuts 25 fixed to the frame member, the shank of each bolt passing down between the vertical legs 22' of the glass stop strips, which are shaped or cut away as at 26 (Figure 9) to accommodate the bolts.

A juncture plate 27 is employed at each juncture of the muntin bars, this juncture plate memher overlying the adjacent ends of the glass stop strips to hold the strips in place. Each juncture plate is provided with an aperture 27 to receive the bolt.

As illustrated in Figure 9, the outer or top flanges 22' of certain of the glass stop strips are removed so that the projecting portions 28' of the vertical flanges 22 may underlie the flanges 22" of the right angularly arranged glass stop strips. This locates the flanges 22" of all of the glass stop strips in the same plane as will be obvious, and also ties the several glass stop strips together.

As illustrated in Figure 5 for instance, and also at the left in Figure 4, the juncture plates 27 are not employed at the juncture of the muntin bars and the side frames of the sash.

The hinge side of the sash is illustrated in Figure 5 and in this figure it will be noted that the hinge is shown as comprising companion hinge parts 29 and 30, secured respectively to the sash and frame, each of these hinge parts being provided with interfitting beads 31, whereby the hinge parts are pivotally interconnected. The hinge part 30 is secured to the frame by means of bolts or the like 32, whereas the hinge part 29 embraces three sides of the side frame portion of the sash and is preferably secured thereto by welding. This hinge part is of the same thickness, preferably, as the adjacent glass stop strip 22 and as a consequence, lies in the same plane as the glass stop strip.

The heads of the bolts 24 are located on the inside of the sash so that consequently these bolts, the glass stop strips 22, and glass: sheets 23,

can only be removed from the inside.

The channel shaped structure of the muntin bars of the sash, as well as the box-like cross sectional structure of the side, top, and bottom portions of the sash, provide a strong and rigid structure which will not weave, warp or otherwise become disaligned.

By providing a structure which may be stamped fromsheet metal, the sash may be economically produced in large quantities. The only welding operations necessary are those required to unite the subsequently bent flange portions 18 and 19. It has been found that the material removed during the stamping operation to provide the openings 1'7 for the glass lights may be used to form the glass stop strips 22 and juncture plates 27,

and any remaining scrap may be employed in the production of the numerous smaller metal articles and parts. As a consequence, there is little waste of material.

While an embodiment of this invention has been described and illustrated somewhat in detail, reservation is made to make such changes and modifications as may come within the purview of the accompanying claims.

What I claim as my invention is:

1. An integral one-piece metal sash having a hollow tubular peripheral portion and transversely and longitudinally extending bars U- shaped in cross section, said bars having oppositely extending flanges, L-shaped glass stop strips having portions extending into the channels of said bars and having other portions cooperating with said flanges to secure glass lights in place.

2. An integral one-piece sash stamped from a single sheet of metal with a flanged periphery, said flange being bent to form a hollow boxshaped marginal portion, and removable glass stop members overlapping said portion for securing a glass in position.

3. A metal sash comprising an integral onepiece sheet including muntin bars U-shaped in cross section provided with laterally extending flanges, glass stop strips associated with said bars and having portions thereof projecting 'trans versely of the glass into the channels thereof and having other portions cooperating with said flanges to clamp the glass therebetween, and means for securing said strips in place.

4. A metal window sash comprising a metal sheet stamped to provide reinforced backing portions for a window glass and a box-like marginal portion having an extended side lying substantially in the plane of the glass at one face of the latter, and means cooperating with said extended side for retaining the glass in position.

5. A metal window sash comprising a metal sheet stamped to provide vertical and transverse hollow rib-like mullion bars, certain thereof being flanged at an edge thereof to provide a backing portion for a window glass, and a removable device extending transversely of the plane of the glass within said flanged bar and overlapping the glass to clamp the latter in place against said backing portion.

ALBERT P. BALL.

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