US2057823A

US2057823A - Double window construction

Info

Publication number: US2057823A
Application number: US43728A
Authority: US
Inventors: Henry J Galey
Original assignee: Pittsburgh Plate Glass Co
Current assignee: PPG Industries Inc
Priority date: 1935-10-05
Filing date: 1935-10-05
Publication date: 1936-10-20
Anticipated expiration: 1953-10-20

Description

Oct. 20, 1936. H. J. GALEY 2,057,823 I DOUBLE WINDOW CONS TRUCTION I 2 Sheets-Sheet 1 Filed Oct. 5, 1935 o /W//, Z

INVEN TOR. flEN/Q rd GHL-E' v 2.46/00; 640 6 T TORNEYS.

Patented Oct. 20, 1936 UNITED STATES PATENT OFFICE 2,057,823 DOUBLE WINDOW CONSTRUCTION Application October 5, 1935, Serial No. 43,728

4 Claims.

The invention relates to double glazed windows and particularly to the frame construction of the unit which protects the margins of the pairs of sheets and holds the sheets in assembled relation with suitable compression upon the spacers at the edges of the sheets which provide the seal for the space between the sheets. The objects of the invention are the provision of a frame of inexpensive construction having the necessary strength and rigidity, which can easily be applied and removed. One embodiment of the invention is illustrated in the accompanying drawings, wherein:

Figure 1 is a front elevation of a complete double glazed unit. Fig. 2 is a section-through the unit on the line 11-11 of Fig. 1. Fig. 3 is a section through the frame before it is bent to fit the glass. Fig. 4 is a detail plan view showing the interlocking means at the ends of a pair of wedges. Fig. 5 is a side elevation of the members shown in Fig. 4. And Fig. 6 is a detail sectional view showing the wedges in interlocked position.

Referring to the drawings, l and 2 are glass sheets which make up the unit; 3 is a spacer between the edges of the glass sheets at their peripheries, preferably of rubber and under compression so as to provide a seal; 4 and 5 are the side plates of the frame connected by a tie plate 6; and 'l is a wedge member for holding the side plates in parallel relation, as indicated in Fig. 2. The frame is preferably of extruded metal, which is of the shape shown in Fig. 3 when first produced, the side plate 4 lying at an angle to the side plate 5 with a recess at'8 and a connecting portion 90f relatively thin metal opposite such recess. V After the frame, as shown in Fig. 3, is applied around the periphery of the glass,'the side plate 6 is pressed into parallelism with the side 40 plate 5 and the wedge I is slid into position, thus locking the parts in the relation shown in Fig. 2. The inner faces of the

plates

4 and 5 are preferably provided with thin strips ID of rubber or other yielding material to improve the seal and insure tight joints.

The frame may be made in four sections secured together at the corners, but is preferably made in one piece, with the ends thereof meeting I at I! (Fig. 1), suitably cut at the corners, as indicated at H and I2, to facilitate bending and to expose the ends of the wedge members I. The wedge members are formed at their ends for interlocking, as shown in Figs. 4, 5 and 6, one of the opposing wedges being provided with a tongue l3 which is adapted to extend through a slot I4 formed on the tongue l5 of the opposing wedge. In assembling, the tongue is slipped through the slot l4, and the end of the tongue I3 is then bent over into hook shape to lock the parts together, as indicated at H5 in Fig. 5. This interlock where the two free ends of the frame come together at ll (Fig. 1) serves as a lock for the frame members at this point, so that no additional means are required to hold the abutting ends of the frame in assembled relation. This interlock prevents the two wedges, which are joined, from being slipped endwise in their grooves after assembly. A similar lock between the other two wedges, at the corner of the frame diagonally opposite the joinder ll, serves to hold these wedges at this point against accidental endwise displacement. It is thus necessary to provide an interlock only at thetwo corners of the unit. When it is desired to disassemble the unit, all that is necessary is to release the interlocks between the wedges by the use of a suitable tool, and then force the wedges endwise through the grooves, after which the side plates l0 can be bent outward away from the glass sheets, permitting such glass to be separated from the frame.

What I claim is:

1. In combination in a double window construction, a frame comprising a pair of parallel side plates connected intermediate their ends with a tie plate which acts as a seat for the glazing unit and permits one plate'to be tilted relative to the other, the outer ends of the side plates back of the tie plate being tapered on their opposing faces to provide a wedge-shaped recess increasing in width from the outer ends of the plates inward,

a wedge fitting said recess and removable by an endwise movement, and a glazing unit consisting of a pair of glass sheets spaced apart, with sealing meansbetween their margins, seated on the tie plate between the inner faces of the parallel side plates.

2. In combination in a double window construction, a frame comprising a pair of parallel side plates connected intermediate their ends with an integral tie plate which acts as a seat for the glazing unit and is of reduced thickness at one side to permit the side plate at such side to be tilted relative to the other side plate, the outer ends of the side plates back of the tie plate being tapered on their opposing faces to provide a wedge-shaped recess increasing in width from the outer ends of the plates inward, a wedge fitting said receess and removable by an endwise movement, and a glazing unit consisting of a pair of glass sheets spaced apart, with sealing means between their margins, seated on the tie plate between the inner faces of the parallel side plates.

3. In combination in a double window construction, a unit comprising a pair of glass sheets with 15 where they meet at the corner of the unit.

4. In combination in a double window construction, a unit comprising a pair of glass sheets with a spacer between the margins thereof, and a frame made up of channels in which the glass sheets are seated, said channels each having one flange tiltable with respect to the other flange and being provided in their bases with wedgeshaped recesses extending longitudinally thereof wedge members fitting said recesses and adapted to hold the flanges in parallelism, and releasable hook and slot interlocking means between two of said wedges where they meet at the corner of the unit.

HENRY J. GALEY.