US2676824A

US2676824A - Window latch

Info

Publication number: US2676824A
Application number: US175337A
Authority: US
Inventors: Otto C Gessler
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-07-22
Filing date: 1950-07-22
Publication date: 1954-04-27
Anticipated expiration: 1971-04-27

Description

Patented Apr. 27, 1954 f 'r UNI TED S OFF 2,676,824 WINDOW LATCH Otto Gessler, Detroit, Mich.

Application July 22, 1950,.Seria-1Na 175,337

3Claim's. (Cl. 292-87") This invention relates to window latches.

, One object of this inventionis to provide a window latch which is attachable to a sliding sash of a window so as to lock the sash firmly in position and defeat the efforts of intruders to open the window from the outside.

Another object is to provide a window latch of the foregoing character which is of simple construction in the form of a stamping which is readily attachable by means of only two screws, one of which serves as a mounting and pivot element for the fastener and the other as the keeper for the fastener.

In the drawings:

Figure 1 is a front elevation of the inside of a window showing a window latch attached thereto, according to the invention;

Figure 2 is a vertical section taken along the line 22 in Figure 1;

Figure 3 is an enlarged fragmentary horizontal section taken along the line 33 in Figure'l Figure 4 is a fragmentary vertical section taken along the line 4--4 in Figure 3; and

Figure 5 is a front perspective view of the latch element employed in the window latch.

Referring to the drawings in detail, Figure 1 shows a conventional window, generally designated H), of the double-hung sliding sash variety including the usual frame, generally designated with upper and lower sliding sash units, generally designated I2 and I3 respectively. The window latch, generally designated I4, is shown as applied to the lower sash unit l3 but it could obviously be applied as well to the upper sash unit I2.

The window latch l4 (Figure 5) consists of a latch member, generally designated |5, in the form of a stamping having a base portion I6 with a hole I! therein and parallel wings |9 projecting outwardly substantially at right angles to the base I6 and spaced apart from one another by approximately the width of the base 16. The wings |9 serve as handles adapted to be grasped by the fingers of the operator, as described in connection with the operation of the invention. From one end of the base IS an arm extends outwardly and rearwardly at approximately 45 degrees inclination to the base IS, the arm 2. having a tongue 2| projecting forwardly from the outer end 22 thereof. The tongue 2| is substantially perpendicular to the plane of the base l6 and has a U-shaped notch 23 facing forwardly. A bulge 24 is provided in the arm 20 to provide a space for the head 25 of a screw 26 which serves as a keeper and which is screwed into the window frame II in a direction substantially parallel to vthei'frame of the window pane2l which is mounted in the sash frame 28 of'the sash .12 or I3.

The latch member 15 is mounted on the sash frame 28 by means of a screw 29 which passes through the hole I! into the sash frame 28 and which has a compression coil spring 30 coiled around the shank 3| thereof. The outermost convolution of the spring 30 is large enough to admit the shank 3| of the screw 29 but small enough to exclude the head 32. In this manner, the coil spring 30 abuts the screw head 32 and urges the base It toward the sash frame 28.

In the operation of the invention, the latch member l5 and

screws

25 and 29 are installed in the relative positions shown in Figures 1 and 3, so that the notch 23 in the tongue 2| slips behind the head 33 of the screw 25 and holds it firmly when the coil spring 30 has urged the latch member l5 substantially against the sash frame 28 (Figures 1 and 3). In this position, the window sash I3 is securely locked against the window frame II in the slightly raised position of the window sash l3. The window latch l4 may obviously be placed at any position to permit the window sash l3 to be raised to a height at which it is fully open or only partly open.

To open the window and release the latch M, the operator, who is of course inside the room in which the window I0 is located, faces the inner side of the window and, grasping the wings I!) between his thumb and forefinger, pulls the latch member l5 toward himself, compressing the spring 30 and pulling the notch 23 of the tongue 2| out of engagement with the keeper screw 25. When thus unlatched, the sash I3 may be raised or lowered as desired.

In this manner, the invention provides a window latch of simple construction and of inexpensive cost of manufacture which may be readily applied to any sliding sash window of conventional construction. The window latch of the present invention may be installed by the householder and does not require the services of a skilled workman, such as a carpenter. Its simplicity of construction makes it easily manufactured by quantity production methods in punch presses at a low cost of production which brings it within the reach of everyone.

What I claim is:

1. A window latch for use with a keeper comprising a latch member having a base portion with a handle portion comprising spaced wings projecting from said base portion and disposed transversely thereto and a keeper-engaging portion likewise projecting from said base portion, a latch member support engaging and retaining said latch member in position, and a resilient element disposed between said wings and yieldingly urging said keeper-engaging portion into engagement with said keeper.

2. A Window latch for use with a keeper comprising a latch member having a base portion with a handle portion comprising spaced wings projecting from said base portion and disposed transversely thereto and a keeper-engaging portion likewise projecting from said base portion and including an arm inclined relatively to said base portion, said arm having a keeper-engaging recess therein, a latch member support engaging and retaining said latch member in position, and a resilient element disposed between said wings and yieldingly urging said keeper-engaging portion into engagement with said keeper.

3. A window latch for use with a keeper cornprising a latch member having a base portion with a handle portion comprising spaced wings projecting from said base portion and disposed transversely thereto and a keeper-engaging por tion likewise projecting from said base portion and including an arm inclined relatively to said base portion, said arm having an end portion inclined relatively to the remainder of said arm and disposed substantially perpendicularly to said base portion said end portio having a keeperengaging recess therein, a latch member support engaging and retaining said latch member in position, and a resilient element disposed between said wings and yieldingly urging said keeper-engaging portion into engagement with said keeper.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 889,484 Parker June 8, 1908 1,553,339 Traumuller Sept. 15, 1925 2,074,501 Cline Mar. 23, 1937 2,225,163 Dohrman Dec. 17, 1940