US1166216A - Latch. - Google Patents

Description

L. J. HOUSE.

LATCH;

APPLICATION FILED FEB. 26, I9I5.

11,166,916 Patented; Dec. 28, 1915.

E0 JAMES noose, OF. LA FARGEVILLE, NEW Yon LATCH.

Specification of Letters Patent.

Patented Dec. 28, 1915.

Application February 26, 1915 Serial Ito-10,764.

To all whom it may concern Be it known that LLEo J. HOUSE, a citi- Zen of the United States, residing at La Fargeville, in the county of Jefferson and State of New York, have invented certain new and useful Improvements in Latches; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in latches and has for its principal object to provide a latch which will automatically hold a door against accldental closure.

Another object of the invention is to provide a device which is actuated automatically upon the opening of the door and which will effectively prevent the said door from swinging closed until so desired.

A further object of the invention is to provide a simple and efficient device which is particularly strong and durable in use and cheap to manufacture.

With these and other objects in view, the invention consists in the novel combination and arrangement of parts which will be fully set forth in the following specification and accompanying drawings in which,

Figure 1 is a view illustrating the device as it would appear when in use, Fig. 2 1s a longitudinal sectional view through the latch, Fig. 3 is a detail perspective View of.

the base plate, and Fig. 4 is a detail perspective view of the guard plate carried by the door.

Referring now to the drawings, the numeral 1 designates as an entirety a wall, while the numeral 12 designates a door which is hinged or otherwise secured thereto as at 3. This door carries the guard plate 4 which is best illustrated in Fig. 4c, and this guard plate comprises the base member 5 having formed thereon the parallel arms 6 which overlie the opposite faces of the door, as clearly shown in Fig. 1.

The latch member, which is designated generally by the numeral 7, comprises a base plate 8 having formed therein a central aperture 9 and a pluralitv of screw-receiving apertures 10 by which the device is secured to the wall. This base plate is designed to fit within a recess 11 in the wall and the standard 12 extends outwardly therefrom through the .centralaperture 9 and is provided at its lower end with screw threads 13 on which the nut 14 isthreaded. The standard is provided with a central screw threaded aperture 15, the use of which will appear as the description proceeds. A pair of apertures 16 are formed to the sides of the aperture 15 and are for the reception of the locking bolt and operating bolt, which will be more fully hereinafter described. A threaded stem 17 is arranged to be threaded into the aperture 15 and carries the nut 18 Which is designed to be tightened against the face of the standard 12 and thus firmly lock the stem in place. A suitable lever 19 is pivoted as at 20 to the free end of the stem and has pivotally secured to each end the locking and actuating bolt 21 and 22 respectively. The locking bolt 21 slides through the aperture 16 which is farthest from the base plate, while the operating bolt 22 slides through the aperture 16 nearest the base plate. Formed on the bolt 22 is a suitable beveled member 23 which is arranged to be engaged by the plate 4 to cause the bolt to be shoved inwardly through the aperture 16 and thereby cause the locking bolt 21 to be forced into engagement with the opposite side of the plate 4:.

It will be apparent from the foregoing that in use when the door is opened the plate t will engage the beveled member 23 and cause the bolt 22 to slide rearwardlv and into the position shown in the dotted lines in Fig. 1. This movement will cause the lever 19 to swing on its central pivot 20 and thereby push the locking bolt. through its aperture 16 so that it engages the inner side of the door, thus holding the same against movement and in an open position.

l/Vhile in the foregoing there has been shown and described the preferred embodiment of this invention, it is to be understood that such changes may be made in the combination and arrangement of parts as will fall within the spirit and scope of the invention as claimed.

What I claim is:

1. In a door fastener base, a standard extending outwardly therefrom, a stem secured centrally of the standard, said standard being apertured near each end, a locking bolt sliding through one of the apertures, an operating bolt slidable through the opposite aperture, and a lever connecting the locking and operating bolt and being pivoted to the stern whereby when the operating bolt is moved the locking bolt is moved accordingly.

2. In a door catch of the character described, a base plate, a standard extending i0 and an actuating bolt slidable through the opposite apertures, both bolts being pivoted to the lever whereby when the operating bolt moves the locking bolt will move relatively.

In testimony whereof I atlix my signature in presence of two witnesses.

LEO JAMES HOUSE. Witnesses:

L. V. PRIEST, Mrs. H. L. PENN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

- Washington, D. C.

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