US2054856A

US2054856A - Double window construction

Info

Publication number: US2054856A
Application number: US37036A
Authority: US
Inventors: John H Fox; Charles E Stroud
Original assignee: Pittsburgh Plate Glass Co
Current assignee: PPG Industries Inc
Priority date: 1935-08-20
Filing date: 1935-08-20
Publication date: 1936-09-22
Anticipated expiration: 1953-09-22

Description

Sept. 22, 1936.

J. H. FOX ET AL,

DOUBLE WINDOW CONSTRUCTION Filed Aug. 20, 1935 IN VEN TOR. vJoH/v H "neat-J6. \sfkoun Patented Sept. 22, 1936 UNITED STATES PATENT OFFICE DOUBLE WINDOW CONSTRUCTION Application August 20, 1935, Serial Nb. 37,036

6 Claims.

The invention relates to a double window construction involving the use of a double unit with the space between tire panes hermetically sealed and filled with dry air or nitrogen or other suitable gas free from moisture to avoid condensation on the inner surfaces of the glass sheets. The invention has to do particularly with the mounting or frame which holds the margins of the panes and has for its principal objects, the provision of an improved channel or frame, which will maintain its shape without distortion when clamped in position; which is readily releasable from the glass sheets when one or more of such sheets require replacement, or for reconditioningthe insulating space; and which may be sealed in position in the sash so as to prevent any access of moisture to the edges of the glass sheets and the spacers therebetween. Certain embodiments of the invention are illustrated in the accompanying drawing, wherein:

Figure 1 is a front elevation. Fig. 2 is an enlarged section through one side of the construction. Arid Figs. 3 and 4 are sections similar to Fig. 2 illustrating modifications.

5 Referring to Figs. 1 and 2, the reference numerals I and 2 represent the side plates of a car which constitute the sash surrounding the glass unit. In order to clamp the unit in place removably, four strips3, l, 5, and 6 are employed secured in place by the screws 1, whose inner ends engage suitable ribs or projections 8 integral with the I plate I. The glazing unit consists of the glass plates 9 and I provided with the spacer H ex-- tending around the periphery of the plates, such spacer consisting of rubber composition, or other suitable material, having a proper amount of resilience and adapted to make sealing contact with the surfaces of the plates. The edges of these plates are mounted in a channel made up of two opposing angle members l2 and i3 having their base portions l4 and i5 overlapping and interlocked, as indicated in Fig. 2, the interlocking being secured by the use of a rib lion the member l5, which fits into a suitable groove "in the op- 5 posing base member. The angle members are locked in assembled relation by means of a wedge l1, and such wedge is held against opposite movement by the machine screws Ila and by the clamping strip 3. In order to prevent access of moisture to the space l8 and to give the unit a resilient mounting, packing strips I9, 20, 2i, and 22 are employed.

The angle member [2 is preferably all in one piece extending around the four sides of the glaz- 5 ing unit, but the other angle member I3 is preferably made in four sections. one for each side of the unit as will be seen by reference toFig. l, the sections being beveled at their meeting edges in order to present a neat appearance. In 8.8-: sembling the unit,'it is placed in position in the angle member I2 and the four angle members l3 are positioned and secured by four wedges ll, after which the screws lla are applied and the clamping strips 3 are positioned and locked in po sition by means of the clamping bolts 1. In disassembling, the foregoing operation is reversed, the screws 1 being released and the strips 3 removed, after which the unit is removed from the sash. On removing the screws "a, the wedges l'l may be pulled out, thus permitting the members l3 to move downward, releasing the ribs it from their cooperating grooves in the base members M.

The construction as just described and as illustrated, is easily assembled and disassembled, and when the partsare in assembled relation, gives a very secure support for the glass plates, which support, however, is not of such rigid character as to cause breakage when the sash support is subject to vibration or slight distortion. The construction further affords adequate protection against theentrance of moisture to the spaces l8 opposite the edges of the glass sheets and spacers. 1

Fig. 3 illustrates a modification, in which the

baseflanges

23 and 24 are locked against relative lateral movement by the key strips 25, such key strips being in turn locked in position by means of the wedges 26. In disassembling, the wedges 26 are first removed, followed'by the removal of the key strips 25. The angle member 21 is then removed by sliding it laterally. In other respects, the construction follows that of Figs. 1 and 2.

Fig. 4 illustrates the application of the construction to an ordinary wood sash 28. In assembling the unit, the

angle members

29 and 30 are applied and the wedges 3| moved into looking position and secured by the screws Ila, after which the unit with the channel applied thereto is positioned in the groove of the sash, as shown, and secured in such position by the use of the putty 32 or other suitable plastic material which hardens in position. In disassembling for the replacement of a glass sheet, or for other purposes, the putty or other holding material is first removed and the entire unit removed from the sash, after which it is disassembled and the necessary replacement or repairs made preliminary to replacing the unit. The construction is similar in all respects to that of Figs. 1 and 2, except as to the cooperating sash structure, and

as to the means for locking the unit in position, clamping plates being employed in the one case and plastic holding material in the other. While the holding members or separators I1, 26, and 3 I as shown in the various embodiments of the invention, have one inclined face so that they may be more easily removed, it will be understood that this 'is not an essential detail, and that the invention is not limited to this particular shape, but comprehends any type of separator member which will perform the function of locking the parts in assembled relation.

What we claim is:

1. In combination in a double window construction, a pair of spaced glass sheets with spacing and sealing means therebetween at their margins, a channel in which the edges of the glass sheets are mounted, comprising a pair of members of L cross section facing each other with their base flanges overlapping, constituting the web of the channel, interlocking means between said flanges releasable by a relative bodily movement of the members, wedge means between the base flanges for holding them in interlocked relation while maintaining the other flanges of the members in parallel, sealing means between the outer surfaces of the glass sheets and the inner faces of the flanges of the channel which lie on opposite sides of the glass sheets, and releasable means. for securing the wedge means in position.

2. In combination in a double window construction, a pair of spaced glass sheets with spacing and sealing means therebetween at their margins, a channel in which the edges of the glass sheets are mounted comprising a pair of members of L cross section facing each other with their base flanges overlapping, constituting the web of the channel, interlocking means between said flanges releasable by a relative bodily movement of the members, wedge means between the base flanges for holding them in interlocked relation while maintaining the other flanges oi the members in parallel, a sash frame in which the channel is mounted, comprising a pair of spaced plates one of which is fixed and the other movable, threaded securing and clamping means connecting the plates, and packing means between the inner surfaces of the plates and the channel.

3. In combination in a double window construction, a pair of spaced glass sheets with spacing and sealing means therebetween at their margins, a channel in which the edges of the glass sheets are mounted, comprising a pair of members of L cross section facing each other with their base flanges overlapping, constituting the web of the channel, interlocking means between said base flanges releasable by a relative bodily movement of the members, removable wedge means cooperating with the overlapping flanges to lock the members against relative bodily move-,- ment while maintaining the other flanges of the members in parallel, and screw means for securing the wedge means in position.

4. In combination in a double window construction, a pair of spaced glass sheets with spacing and sealing means therebetween at their margins, a channel in which the edges of the glass sheets are mounted, comprising a pair of members of L cross section facing each other with their base flanges interfltting loosely one inside the other and having a hook engagement between their opposing faces, a removable wedge in the recess of the one base flange back of the other base flange for holding the members against relative movement with the other flanges of the members in parallel, and releasable means for securing the wedge to one of said flanges.

5. In combination in a double window construction, a pair of spaced glass sheets with spacing and sealing means therebetween at their margins, a channel in which the edges of'the glass sheets are mounted, comprising a pair of members of L cross section facing each other with their base flanges interfltting loosely one inside the other and having a hook engagement between their opposing faces, a removable wedge in the recess of the one base flange back of the other base flange for holding the members against tilting movement with the side flanges of the members in parallel, and a sash frame in which the channel is mounted, packing means being provided in the channel between the side flanges thereof and the outer faces oi the glass sheets.

6. In combination in a double window construction, a pair of spaced glass sheets with spacing and sealing means therebetween at their margins, a channel in which the edges of the glass sheets are mounted, comprising a pair of members of L cross section facing each other with their base flanges interfltting loosely one inside the other and having a hook engagement between their opposing faces, a removable wedge in the recess of the one base flange back of the other base flange for holding the members against relative movement with the other flanges of the members in parallel, a sash frame in which the channel is mounted, the sash frame comprising a pair of opposing plates faced with packing material, one movable relative to the other, and threaded clamping means for the movable plate.

JOHN H. FOX. CHARLES E. STROUD.