US472430A

US472430A - Ments

Info

Publication number: US472430A
Authority: US
Publication date: 1892-04-05
Anticipated expiration: 1909-04-05

Description

V(Mode1.)

J. K- CLARK. LATCH.

No. 472,430. Patented Apr. 5, 1892.

UNITED STATES PATENT OFFIcE.

JOHN K. CLARK, OF BUFFALO, NEW YORK, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO MARY K. CLARK, OF SAME PLACE.

LATCH.

SPECIFICATION forming part of Letters Patent No. 472,430, dated April 5, 1892.

Application filed November 25, 1891. Serial No. 413,104. (ModeL) To all whom it may concern.-

Be it known that 1, JOHN K. CLARK, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York,

have invented new and useful Improvements in Rim-Latch Locks, of which the following is a specification.

This invention has for its object to provide a novel, simple, eflicient, and economical rim- IO latch lock wherein a suspended handle pivotally connected with the face-plate of the latch-casing can be operated to lift the latch by a simple pulling action.

The invention consists, essentially, in the combination,with a latch-lock casing having an interior slide or bolt and an orifice in its front wall and a latch-dog pivoted in the casing to swing in a vertical plane, of a suspended drop-handle pivotally connected with the latch-casing, and an arm extending through the orifice in the latch-casing and bearing against the tail end of the latch-dog to lift the latter when the drophandle is operated.

The invention is illustrated by the accompanying drawings, in which- Figure 1 is a perspective View of a rimlatch lock constructed in accordance witl my invention. Fig. 2 is a perspective view of a 0 keeper or striker adapted for use in connection with the latch-lock. Fig. 3 is a detail perspective view of the latch-lock, omitting the drop-handle. Fig. 4: is a detail perspective view of the drop-handle; and Fig. 5 is a 3 5 rear elevation of the latch-lock, omitting the back cover-plate for the purpose of illustrating the internal arrangement of parts.

In order to enable those skilled in the art to make and use my invention, I will now 40 describe the same in detail, referring to the drawings, Wherein The numeral 1 indicates the latch-lock casing having a rim or flange 2, provided with screw-holes by which to attach it to the exte- 5 rior surface of a door. The latch-dog 3 is pivoted intermediate its extremities Within the latch-casing through the medium of a pivot-pin 4 in such manner as to provide the latch-dog with a tail-piece 5 and a nose 6, adapted to engage a. suitable keeper or striker 7. The latch-dog is normally pressed downward by a spring 8, for the purpose of holding the nose 6 in proper position to engage the keeper or striker, and the latch-dog is adapted to be looked through the medium of a horizontal slide or bolt 9, adapted to be moved back and forth through the medium of a suitable key and having an upwardly-pro jecting arm 10, which can be moved beneath the tail-piece 5 of the latch-dog for the pur- 6o pose of holding the latter in its locking position.

The faceplate of thelatch-casing is formed at its upperend portion with a pair of outwardlyprojecting ears or lugs 12, between which is arranged the cylindrical portion 13 of a loop-shaped drop-handle 14. The cylindrical portion 13 of the handle is retained in proper position by a horizontal pivot-pin 15, extending through the ears or lugs 12 and through such cylindrical portion in such manner that the handle can be swung in a vertical plane while it will normally hang pendcut, as represented in Fig. 1.

The faceplate of the latch-casing is formed with an orifice 16, suitablyarranged ata point above the tail end 5 of the latch-dog 3, and one extremity of the cylindrical portion 13 of the drop-handle 14 is formed integral with a projecting arm or finger 17, which extends through the orifice 16 and bears against the tail-piece of the latch-dog. so that when the drop-handle is swung in an upward direction, as in the act of pulling the door open, the

arm or finger 17 will depress the tail-piece of 8 5 the latch-dog and elevate the nose thereof from engagement with the keeper or striker.

I do not confine myself to the exact construction and arrangement of parts, as the arm or finger 17 may be otherwise arranged, so long as it projects through an orifice in the face-plate of the latch-casin g and is moved by the operation of the drop-handle for the purpose of depressing the tail end of the latchdog to elevate the nose thereof from engage- 5 ment with a keeper or striker. 5

Having thus described my invention, What I claim is The combination, with a rim-latch lockcasing having an interior slide or bolt and an orifice in its front wall, and a latch-dog pivoted intermediate its extremities within the casing to swing in a vertical plane, of a In testimony whereof I have hereunto set drop -11and1e pivotaiiy connected with the my hand and aflixed my seal in presence of face-plate of the latch-casing, and an arm extwo subscribing Witnesses.

tending through the orifice in the latch-cits JOHN K. CLARK. [L. 3.] 5 iug and bearing against the tail-piece 0f the Witnesses:

hitch-dog to lift the latter when the drop- KIMBALL V. CLARK,

handle is operated, substantially as described. ALBERT A. HENNINGI-IAM.