US468040A

US468040A - Latch

Info

Publication number: US468040A
Authority: US
Publication date: 1892-02-02
Anticipated expiration: 1909-02-02

Description

A. DIDION. LATCH (ModeL) Patented Feb. 2

lUNlTFD Sterne Parent @rrrcn.

AUGUSTE DIDION, OF CHICAGO, ILLINOIS,

LATCH.

SPECIFICATION forming part of Letters Patent No. 468,040, dated February 2, 1892.

Application filed May 28, 1891. Serial No. 394.341. (ModeL) To all whom it may concern:

Be it known that I, AUGUSTE DIDION, a citizen of the Unit-ed States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Door-Locks, of which the following is a specification.

My invention relates to improvements .in door-locks, more particularly to that species of door-locks which are known as catchlocks; and the object is to provide a construction by which engagement between the bolt and catch may be rendered at all times certain and secure, and is particularly directed to a construction by which the tendency to recoil when the door is closed with gigor shall not be permitted to reopen the oor.

My invention consists in detail of a doorlock comprising a horizontally-arranged bolt cap ble of revolving under the operation of a handle and having an angular part caused to protrude from the edge of the door, and a catch located upon the jainb comprising spring-actuated jaws capable of opening to receive the bolt and held together by the springs until they are separated by the revolution of the bolt on its axis.

My invention. further consists in the general and specific details of construction, all as hereinafter more fully pointed out.

In the drawings, Figure 1 is a,sectional front elevation of the bolt-section of the lock, with the top plate removed to show the interior construction. Fig. 2 is a cross-sectional end elevation on the line 2 of Fig. 1, viewed in the direction of the arrow. Fig. 3 is an end view of the bolt. Fig. 4 is a front elevation of the bolt-section of the lock, showing the location of the handle; and Fig. 5, a detail view in elevation of the catch-section of the lock or that carried by the jamb.

A represents the case adapted to be screwed upon the door and carrying the revolving bolt 13. The bolt B is supported in bearings .C to' revolve therein, as shown, and the projecting end if is made triangular in end elevation, as indicated in Fig. A coiled spring D surrounds the bolt to return it to its normal position after it has been revolved under.

the operation of the handle E, as presently shown. From a suitable point upon the bolt extends'the jointed arm F, the opposite end of which is secured to a link G, extending through the stem II of the handle E. The arrangement of the parts is such that when the handle E is turned the bolt B is given a partial revolution, so as to present one of the angles t to the front of the look, while when the handle is released the bolt under the action of the spring D will return to its normal position to present one of the sides 8 to the front of the lock. The catch is inclosed in a metal shell I, bolted to the door-jamb, within which are mounted the oppositely-ar ranged pivoted jaws K, held together, as indicated in Fig. 5, by fiat springs L. The interior faces of the jaws K present an angular space similar in outline to the projecting end 25 of the bolt B.

A tumbler of common construction is provided within the case A for the purpose of locking the bolt B to prevent its revolution under the operation of the handle. A simple form for this construction is illustrated in Fig. 1, in which the bolt B is represented in dotted lines as recessed at r, and a sliding spring-retained tumbler M is mounted in hearings to extend at right angles to the bolt. At 1) is represented a recess for the end of an ordinary door-key, the tang of which may engage the wards 0 on the tumbler M to withdraw the same against the resistance of the spring on. v

The operation is as follows: By reason of the configuration given to the outer extremities of the jaws K on the closing of the door the edge if enters within the jaws, so that the hypotenusal side .9 is presented to the inner face of the jaw-teeth. To open the lock, the handle is turned to turn thebolt, whereupon the broader part of the bolt becomes presented to the inner narrow part of the jaws of the catch, serving to separate them and .permit the withdrawal of the bolt between the j a'w-teeth.

Any convenient or suitable means may be adopted for turning the bolt 13 to withdraw it from the jaws without longitudinal displacement, and any convenient form of locking shown without departing from the'scope of my invention.

That I claim as new, and desire to secure by Letters Patent, is

1. In a door-lock, the revolving bolt having the projecting angular end, said end being normally in position tocause one of its angular edges to be presented to the catch, in combination with a catch adapted toreceive the bolt and .be released therefrom by turning the bolt, substantiallyas described.

2. In a door-lock, in combination, the re 'volving bolt held against longitudinal displacement and having the angular projecting end,and a catch comprising pivoted jaws to receive the bolt and adapted tobe opened to release the bolt by turning the latter, substantially as described.

3. In a door-loek,in combination,the springcontrolled revolving bolt held against longitudinal displacement and having the angular projecting end, and the catch adapted to receive the bolt and be opened by its revolution to release the same, comprising springcontrolled pivoted jaws, substantially as described.

4. In a door-lock, in combination, the re-' volving bolt B, held against longitudinal displacement and having the triangular projecting end 2., and a catch to receive and hold the projecting end on the closing of the door, comprising oppositely-arranged pivoted jaws K, presenting an interior configuration like" that of the end 15, substantially as described.

5. A door-lockv comprising, in combination, the following elements: the bolt B, held against longitudinal displacement and having the triangular projecting end 15, the handle for operating said bolt, a tumbler to engage said bolt, said parts being mounted on the door, and a catchlocated on the j amb and comprising spring-controlled co-operating jaws presenting theinterior triangular space, substantially as and for the purpose described. I

AUGUS'IE DIDION. In presence of FRANK WIL'rsHIRE, DOUGLAS DYRENFORTII.