US219485A - Improvement in latches - Google Patents

Description

NU'ivrrnn STATES' PATENT Urraca.

JOSEPH KAYE, JIM W. KAYE, AND WALTER K. KAYE, OF KIRKSTALL, LEEDS,

- COUNTY OF YORK, GREAT BRITAIN.

INI PROVEM ENT IN LATCHES.

Specification forming part of Letters Patent )10.219,485, dated September 9, 1879 application filed December 20, 1878; patented in England, December 22, 1877.

To all whom it 'may concern Be it known that We, JosEPH KAYE, JIM WAINWRIGHT KAYE, and WALTER KELITA KAYE, of vKirkstall, Leeds, in the county of York, in the Kingdom of Great Britain and Ireland, have invented a new and useful lmprovement for Fastening and Unfastening Doors, Windows, Ste., of which the following is a specification.

The object of our invention, for which Letters Patent No. 4,873 were granted to us in England, December 22, 1877, is to make a de vice by Which doors, gates, lids, and otherlike objects can be readilyT fastened and un fastened, the main Vfeature of the' invention being the combination, in a lock or other fastening, of a pivoted latch, an independent pivoted lever for operating the same, and a spring acting directly on the said latch in the manner described hereinafter, reference being had to the accompanying drawings, in which- Figure l is a sectional plan of part of a door and door-frame with our improved fastening and releasing device; Fig. 2, a front view o f Fig. 1, showing part of the door and doorframe in section; Figs. 3, 4, and 5, views of detached portions of the invention 5 and Figs. 6 and 7, views illustrating the application of our invention to a cupboard-fastener.

This invention is an improvement on the class of latches illustrated in Imrays English Patent No. 1,16() of 1871, in which a pivotedlatch securely connected to an operating-lever is combined with a spring acting on an arm of said lever.

1n Figs. 1, 2, 3,4,and 5 of the accompanyying drawings, a represents the shell or casing' of our improved lock fitted in the door A, and to this casing is pivoted the latch b by a pin, c, a spring acting directly on the latch, so that a port-ion of it shall project through the front edge, d," of the casing and into the keeper f, secured to the door-frame B.

A spiral spring, j, in the present instance, acts on the pivoted latch through the medium of a guide-rod, w, the point of which iits in a recess in the said latch. l

A lever, h, is pivoted to the casing, one arm of this lever bearing against a projection, h',

on the latch, and the other arm against a projection or collar, m, on the knob-spindle 7c, to which are secured knobs o o', the latter being at such a distance apart that the spindle can have a limited longitudinal play through the door. fi

It will be seen that the arm of the lever h, which bears against a projection, L, on the latch, is not secured to the latch in any way, but is capable of being` moved independentlyY thereof, the object of this being to allow the catch to have a free and unobstructed movement inward when the door is closed, and to permit the latch and other parts of the lock to be put together and taken apart and replaced more readily than if the parts were connected together.

By arranging the spring to act directly on the latch in the manner described We obtain a direct and positive action of the latch.

On pulling the knob'o, or pushing the knob 0 in the direction of the arrow, Fig. 1, the collar m on the spindle Will so operate the lever h that the latch will be turned on its pivot and 'freed from the keeper, when the door can be opened.

On closing the door, by simply pulling the knob of or pushing the knob o, or the door itself, the pivoted latch will resume its former position in the keeper. p

We prefer to cut a screw-thread in the spindle 7c, as shown in Fig. 4, for the nuts p, which serve to maintain the knobs ata properdistance apart, the nuts being secured after adjustment by keys adapted to grooves in the spindle as well as in the said nuts.

in the usual manner, but are made by prefer ence as shown in Fig. 1, and provided with guide-plates for the spindle.

The keeper f is preferably provided with a roller, c, to insure the easy Withdrawal of the pivoted latch. (See Figs. 1 and 2.)

Our invention may be applied to different kinds of locks and fastenings. In Figs. 6 and 7, for instance, it is illustrated as applied to a fastening for a cupboard-door, in a manner which will be readily understood without eX planation, aknob projectingthrough the casing y (See Figs. 4L and The roses r ands may be secured to the door 2 l mime@ beingin the present instance secured directly to the lever h.

It desired the lever may be operated by means of a key in place or' knobs or projections.

We claim as our invention- 1. The combination, in a lock, of a latch pivoted to the casing,` and a spring` acting,r directly on thel latch to projectit outwardly with a pivoted lever h, adapted to so act ona projection on the latch as to withdraw it into the casing, said lever being` disconnected from the latch, and with a device for actuating said pivoted lever, all substantially as set forth.

2. The latch pivoted to the easing and hav- J. W. KAYE. vv. K. KAYE.`

Witnesses WILLIAM WARD, GHAS. GILLIARD.

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