US1975538A - Sash construction - Google Patents

Description

Patented Oct. 2, 1934 L1,915.5:az'z sAsH CONSTRUCTION Yale W. Ehret, Elkhart, Ind., assigner to The Adlake Company, Chicago, Ill., a corporation' of Illinois Application July 22, 1932, Serial No. 623,972

1 Claim.

p rail or otherwise mar the appearance of the same,-

yet will aiford a strong and secure anchorage for the lock, is easy to assemble, and is quite inexpensive to manufacture.

Other more specic objects and advantages --1'5 of the invention will be apparent to those skilled in the art upon a full understanding of the construction, arrangement and purpose of the parts which together constitute the improved mounting.

One form of the invention is presented herein by way of exemplication, but it will of course be appreciated that the invention is susceptible of embodiment in other structurally modified forms coming equally within the scope of the appended claim.

In the accompanying drawing:

Fig. 1 is a fragmentary corner View of a window sash, showing a lock applied thereto in accordance with the invention;

. Fig. 2 is a horizontal section through the sash,

taken just above the bottom rail;

Fig. 3 is a horizontal section through the bottom rail, taken on the line 3-3 of Fig. 1;

Fig. 4 is a similar section, taken on the line 4--4 of Fig. 1; and

Fig. 5 is a perspective View of the filler member which constitutes the anchorage for the lock plate.

The sash shown in the drawing is of thin hollow sheet brass construction and is provided, on the inner wall of its bottom rail 10, with a lock plate 11, which'plate is secured in pos'tion by means of attaching screws 12 and 13. The particular lock shown is similar to the one disv closed in my earlier Patent No. 1,857,295, but locks of other types can of course be attached to sash in the novel manner hereinafter described.

Heretofore it has usually been the practice to attach lock pates to the bottom rails of sash 5G by means of two-part telescopic screws which pass through both side walls of the sash. But

with brass or aluminum sash it is almost impossible to prevent the clamping action which such screws exert on the sash from pulling or pressing 5.5.5.' the same a little out of shape, and even very slight deflections are quite conspicuous and there- "n fore objectionable when the surfaces are highly nished ones, which is ordinarily the case.

In the particular sash which has been chosen as illustrative of a preferred embodiment of this invention, an elongated sheet metal frame 14 is positioned inside of the hollow bottom rail. The frame 14 fits snugly within the rail against the opposed side walls of the latter and is characterized by parallel side strips 15 and 16 which are spaced apart at their ends by cross webs 17 and 18. The frame 14 is preferably formed from a single continuous strip, the cross web 1'7 being an integral connection between the sides 15 and 16, and the cross web 18 being a tongue on the end of the side 16 which ts behind a flange 19 on the corresponding end of the side 15, all as clearly shown in Fig. 5. The sidestrips 15 and 16 of the frame 10 are disposed against the relatively thin soft side Walls 20 and 21 respectively of the bottom rail, in flat extended surface contact with the latter.

The frame 14 provides a support for two preferably solid brass blocks 22 and 23, which blocks are arranged within'the frame between the sides of the latter, the block 22 being located opposite the screws 12 and the block 23 being located opposite the screw 13. The block 22 is secured rigidly in the frame by means of a transxing rivet 24, the ends of which are upset in the side strips 15 and 16 flush with the outer surfaces of the latter. The block 23-which is of smaller size-is held securely in position by means of a number of indentations 25 in the strips 15 and 16 which project into small recesses in the' block. The block 22 is provided with threaded apertures 26 for the reception of the screws 12, while the block 23 is provided with a threaded aperture 27 for the reception ofthe screw 13. The apertures 26 and 27 are extended through the side strip 15 and the thin side wall 20 of the sash to permit the insertion of the screws.

When the lock plate 11 is drawn up tightly against the inner side wall 20 of the rail by the screws 12 and 13, it is afforded a firm, rigid and secure anchorage by the above described filler member, consisting of the blocks 22 and 23 and the skeleton framework 14, regardless of any lack of strength or body in the side wall 20. By employing this improved anchorage for the lock plate, both the inner and outer side walls of the bottom rail are practically freed from al1 distorting stresses, with the result that an assembly of improved appearance is obtained.

The frame 14 may be held against movement in sides of the glazing strip in the bottom rail of a hollow sheet metal sash.

I claim: Y In sash construction, the combination with a hollow sheet metal bottom rail, and a lock plate for attachment thereto by' means of screws, of a ller member inside the rail for the reception of the screws, said i-lller member consisting of a horizontally elongated hollow sheet metal skeleton frame having a flat side which is arranged in extended surface engagement with the side wall of the rail against which the lock plate is positioned, a plurality of solid metal blocks which are arranged within the frame and are provided' with threaded apertures for coaction with the screws, and means separate from the screws for rigidly securing the blocks in position in the frame.

YALE W. EHRET.

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