US2505553A - Glass framing construction - Google Patents

Description

Patented Apr. 25, 1950 UNITED STATES PATENT OFFICE' GLASS FRAMING CONSTRUCTION Walter M. Krantz, Youngstown, Ohio Application August 27, 1946, Serial No. 693,275

Claims. 1

This invention relates to window constructions and more particularly to framing members for transparent panes.

The principal object of the invent on is the provision of a framing construction for transparent window panes.

A further object of the invention is the provision of a framing construction for window panes utilizing a novel framing member distortable for the reception of a window pane and retaining means.

A still further object of the invention is the provision of a framing construction for transparent window panes and including a distortable framing member and means for distorting the framing member to clamp the same upon the transparent window pane.

The framing construction shown'and described herein has been designed to form a more efilcient means of framing a transparent window pane such as a piece of window glass with a small, usually metallic, framing section, the whole of which is suitable for use as a window sash in a standard dwelling house window construction or as a part of an interchangeable storm window combination.

The glass framing construction shown and described herein utilizes the novel principle of distorting a framing section to permit ready positioning of a window pane therein and further distortion of the framing section to lock the same upon the window pane, thereby formin a structurally secure, integral sash unit.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawing, wherein:

Figure 1 is a front view of a sash formed with a glass framing construction.

Figure 2 is an enlarged front view of a corner portion of a window sash illustrating the method of joining the framing construction at its corners.

Figure 3 is an end elevation of a section of the framing material. Broken lines indicate the osition of the framing material when distorted.

Figure 4 is an enlarged cross section taken on line 44 of Figure 1 and illustrates the assembled sash construction. Line 2--2 on Figure 4 indicates the cross section shown in Figure 2.

By referring to the drawings and Figure 1 in particular, it will be seen that a window sash has been disclosed which includes a transparent window pane Ill, a main framing section II and a tensioning framing section l2.

By referring to Figure 2 of the drawings it will be seen that the cut and mitered corners of the main framing section H are joined by L-shaped corner pieces l3, which corner pieces are tapered, as shown in cross section in Figure 4 of the drawinss.

In Figure 2 of the drawings, the main framing section is shown as provided with a channel M in its outermost edge which is adapted. to receive the corner pieces l3, it being observed by referring to the cross section of Figure 4, that the channel i4 is relatively deep and that it tapers progressively narrower toward its innermost end.

The main framing section Ii includes a front flange l5 and a rear flange l6 and a diagonally positioned connecting web 11. The diagonally positioned web I! and the inner surface of the rear flange l6, together with a small portion of the inner surface of the front flange l5 define the tapered channel l4 heretofore referred to. The diagonally positioned web i1 is provided with a projection l8 formed on the inner face thereof and the front flange I5 is preferably provided with a rolled edge I5A so that a spring strip IQ of an approximate W shape may be positioned centrally over the edge I5A of the front flange l5 with one of the arms of the W, the lower in Figure 4, registering beneath the edge 15A and against the web I! and the other arm, the upper in Figure 4, engaging the inner surface of the glass pane l0.

By referring now to Figure 3 of the drawings, the method of assembly of the framing section about a glass pane may be seen, it bein observed that broken lines in Figure 3 indicate the position of the framing section when it has been distorted by moving the front flange l5 away from the rear flange l6 thereby increasing the area in which the spring strip l9 and the glass [0 are positioned. When the glass ill and the spring strip l9 have been positioned in registry with the enlarged framing section, the corner pieces i3 are then moved into position, as shown in Figures 3 and 4 of the drawings, it being observed that their wedge-shaped formation returns the distorted framing section I i to proper position with the front flange l5 and rear flange iii in spaced, parallel relationship. The corner pieces l3 are maintained in the channels I by means of a plurality of pins 20 passed therethrough and engaging slots 2| formed in the outermost edges of the flanges It. It will thus be seen that when the pins 20 are positioned in the openings in the corner pieces l3, access being had thereto by registry of the slots 2|, the corner pieces l3 are incapable of movement out of the channel H of the framing section II and thereby hold the out and mitered framing section in assembled relation around the glass pane l0.

While the foregoing paragraph has assumed that the glass spring strip would be assembled with the sash element first, and then followed by insertion of the corner elements, it will be understood that the spirit and purposes of this invention will not be altered by reversal of this procedure. Which way it is to be carried out in a given instance will depend upon manufacturing convenience under the particular circumstances then concerned.

It will be observed that the principal novelty in this disclosure relates to the formation of the framing section I l with the front and back flange sections l5 and 16, respectively, interconnected by means of the web ll which is diagonally positioned with respect thereto, thereby forming a framing section which, in cross section, is an approximate Z shape. This framing section is readily distortable to permit ready installation of the glass pane l0 and the spring strip [9 and the subsequent reshaping of the framing section to increase the tension on the glass pane l0 and thereby lock the same securely in the framing construction.

Thus, the glass panel, the sash element, the spring strip and the wedge all form a cooperating, interlocked, unit which is extremely strong and wherein the parts intimately cooperate to support each other. Because of the movability of the web II, as well as the resiliency 0f the spring strip 19, the structure will automatically compensate itself for variations in glass thickness as well as for variations due to manufacturing irregularities. Thus, among other advantages, wear in the extrusion die making the sash element, or in the stamping die making the corner members, may be tolerated for much longer without resulting in loose, or ill-fitting, parts than is possible with conventional structures.

The framing section itself is easily formed as a lightweight extrusion of lightweight materials and in conjunction with the rolled spring metal strip l9 forms an inexpensive framing means for transparent glass panels.

For purposes of clarity in the following claims, the following meanings will be indicated by the following named terms, unless otherwise expressly specified or clearly required by the context. The terms outward, outwardly, peripherally putwardly or .outermost all indicate a direction away from the geometric center of the window and the terms inward, inwardly, or "inner indicate a direction toward such center.

Having thus described my invention, what I claim is:

1. A window construction comprising: cut and mitered sections of channeled shape formin a corner and each of said sections having channels formed in their opposite intermost and outermost edges, each of said channels being narrower at its inner end than at its outer end; tapered L- shaped corner pieces in the outermost channels for distorting said framing section by urging the outermost edges away from each other and thereby urging the innermost edges thereof toward each other; a window pane; a seat for said window pane formed adjacent an innermost edge of one leg of each of the inner channels and said pane being on said seat; and a spring strip positloned in each of said inner channels and bearing against both the adjacent surface of the other leg of said inner channels and against said pane for simultaneously urging said pane against said seat and the said inner edges of the said inner channels away from each other.

2. A window construction comprising: a pair of cut and mitered sash elements forming a corner, each sash element having a pair of opposed, substantially parallel side members and an angularly positioned web interconnecting said side members, with the lines of intersection therewith substantially parallel with the longi.udinal axis of said sash element; and a glass panel seat adjacent the inner edge of that one of said side members which is connected to the innermost part of said web for providing a glass panel seat; an L-shaped corner member for fastening said sash elements together, having a Wedge-shaped crosssection and being received between said side members peripherally outwardly of said web in each of said sash elements; a glass panel, said glass panel being received on the glass panel seat of each of said sash elements; a spring strip between said glass panel and the other of said side members and inwardly of said web in each of said sash elements for simultaneously urging said glass panel against said seat and exerting pressure against the inner surface of the said other side member; whereby the sash elements, the spring strips, the corner member and the glass panel are all bound to ether by the flexion in the sash web and constitute the sole means to hold each other in assembled position and whereby the glass panel is held in a manner to relieve it from the shock of an impact directed against it from the side thereof opposite to said spring strip.

3. The structure defined in claim 2 wherein in each of said sash elements the surface of said web facing said pane has a ridge parallel to its longitudinal extent and the spring strip has one edge in contact with said pane for urging it against said seat, an intermediate portion in contact with the said side member opposite the one having the seat formed therein and its other edge against said ridge.

4. A window construction comprising: a pair of cut and mitered sash elements forming a corner, each sash element having a, pair of opposed substantially parallel side members and an angularly positioned web interconnectng said side members, with the lines of intersection therewith substan tially parallel with the longitudinal axis of said sash element an angular stop providmg a glazs panel seat adjacent the inner ed e of that side member connected to the innermost part Of the web; an L-shaped corner member for fastening said sash elements together, having a wedgeshaped cross-section and being received between said side members peripherally outwardly of said web in each of said sash elements; a, glass panel,

a said glass panel being received on said seat of each of said sash elements; a spring strip between said glass panel and the other of said side members and inwardly of said web in each of said 8 and the glass panel are all bound tggeiheghby the REFERENCES CITED flexion in the sash web and cons itu e e so e means to hold each other in assembled position y; ifigg fi are of record m the and whereby the pane is held in a. manner to V relieve it from the shock of an impact directed 5 UNITED STATES PATENTS against it from the side thereof opposite to said Numb r N t spring strip. 919,887 Kohler Apr. 27, 1909 5. The structure defined in claim 2 wherein the said web is made from material capable of at least limited flexing. l0

WALTER M. m.

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