US853358A - Window-catch. - Google Patents

Description

v PATBNTBDMAY 14, 1907. 0.1.4.. HAMMAR & A. BRIGKMAN.

' WINDOW GATGH.

UNITED sTATns PATENT OFFICE.

CARL A. HAMMAR AN I) ALRIK BRICKMAN, OF WORCESTER, MASSACHUSETTS.

WlNDOW-CATCH.

Specification of Letters Patent.

Patented May 14, 1907.

Application filed July 27, 1905. Serial No. 271.541.

To all whom it may concern,.-

Be it known that we, CARL A. HAMMAR and ALRIK BRICKMAN, citizens of the United States, residing at Worcester, in the county of VVorcester and State of'l Massachusetts, have invented a new and useful Window- Catch, of which the following is a specification.

This invention relates to that class of window catches which are used for fastening the meeting rails of top and bottom sashes.

The especial object of this invention is to rovide a simple, durable and inexpensive form of window catch which will lock a window so that it cannot possibly be opened from the outside of the dwelling, and which will tend to draw the meeting rails of the top and bottom sashes together so as to hold the window from rattling.

To this end this invention consists of the Window catch as an article of manufacture, and of the combinations of parts therein as ereinafter described and more particularly pointed out in the claims at the end of this specification.

In the accompanying drawing, Figure 1 is i fragmentary view of sufficient parts of top and bottom window sashes to illustrate the application of this invention thereto. Fig. 2 s a detail view of the fixture which is carried Dy the rail of the bottom window sash. Fig is a perspective view of the fixture which is :arried by the rail of the top window sill. Tig. 4 is a bottom plan view of the fixture ;hown in Fig. 2 partly broken away. Fig. 5

s a detail View of one of the springs, and Fig.v

S is a detail view of the bottom plate.

In that class of window catches to which `his invention relates it is desirable to pro- ,fide a spring locking action which will lock `he window Whenever the same 1s closed.

In a Window catch constructed according o this invention the locking bolt is operated y two flat springs which are housed within fiXture preferably carried by the bottom vindow sash. The `ends of the fiat spring are eated in notches in the casing and bolt repectively.

Referring to the accompanying drawing. or a detail description of a window catch onstructed according to this invention, A .esignates the rail of a bottom window sash, nd B designates the rail of a top window ash. Secured on the rail B by means of crews in the ordinary manner is a socket xture 10.

prising a plate carrying a box or housing 13.

The lower half of the box or housing 13 is closed by a removable plate 17 which is held from slipping sidewise by lugs 18.

As shown in Fig. 4 the plate 17 is fastened to the rail by means of a screw 19.'

Extending through'the housing is a bolt 14 having a finger-piece at one end, and a T- shaped head 16 at its other end.

As shown most clearly in Fig. 4 the bolt 14 is provided with stops or shoulders 20 for limiting its withdrawal, and is also provided withv two sets of notches 20a for receiving flat springs 21. The flat springs 21 have their opposite ends seated in notches in the wall of the housing 13, and when the springs 21 are snapped into place they form a substantially heart-shaped arrangement which will provide an eflicient spring pressure for 'operating the bolt 14.

In the use of a complete window catch as thus constructed it will be seen that the T- shaped head will snap into place in the socket piece, and the tension of the sprin s will tend to draw the window sashes tight y together so as to prevent rattling or shaking of the windows when closed.

In assembling a complete window catch constructed according to this invention it will be seen that the parts may be put together in a direct and simple manner, and that the only screw used in the construction is the screw which fastens the bottom plate of the housing and even this can be replaced by a rivet.

We are aware that changes may be made in the shapes and proportions of parts of a window catch constructed according to this invention without departing from the scope thereof as expressed in the claims. We do not Wish, therefore, to be limited to the particular window catch we have herein shown and described, but what We do claim and desire to secure by Letters Patent of the United- States is 1. As an article of manufacture, a window catch comprising a socket fiXture having upwardly tapering lugs which are undercut and spaced apart to receive a T-shaped head, a housing, a bolt mounted in the housing, and having a T-shaped head for co-operating IOO with the socket-fixture, tWo flat springs arranged on opposite sides of the bolt, the bolt having tWo sets of notches for receiving the ends of the springs, and the housing having a set of notches for receiving the other ends I of the springs, a cover-plate at the bottom of the housing having lugs for setting the same in position, and a screw fastening the coverplate in place.

2. As an article of manufacture, a window catch comprising a socket fiXture, having up- Wardly tapering lugs Which are undercut and spaced apart to receive a T-shaped head, a

housing, a bolt mounted in the housing and 'C. A. HAMMAR; ALRIK BRICKMAN.

Witnesses: v

PHILIP W. SOUTHGATE, MARY E. REGAN.

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