US703975A - Combined latch and lock. - Google Patents

Description

'No. 703,975. Patented July I, I902.

D. W. TOWER.

COMBINED LATGH AND LUCK.

(Application filed Dec. 2, 1901.1

. (No Model.

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- structed of any suitable material and adapted UNITED STATES PATENT OFFICE.

DANIEL W. TOWER, OF GRAND RAPIDS, MICHIGAN, ASSIGNOR TO GRAND RAPIDS BRASS COMPANY, OF GRAND RAPIDS, MICHIGAN.

COMBINED LATCH AND LOCK.

SPECIFICATION forming part of Letters Patent No. 703,975, dated July 1, 1902.

Application filed December 2, 1901.

To all whom, it may concern:

Be it known that I, DANIEL W. TOWER, a citizen of the United States, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented a new and useful Combined Latch and Lock,"of which the following is a specification. V,

The invention relates to im combined latches and looks.

The objectof the present invention is to improve the construction of combined locks and latches and to provide a simple, inexpensive, and efficient one in which the lifting of the handle will operate the locking-bolt and in which the connection between the handle and the locking-bolt will enable the former to move the latter positively in either direction.

The invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure l is an elevation of a combined lock and latch constructed in accordance with this invention, the casing being partially broken away. Fig. 2 is a rear elevation, the rear plate of the casing being removed. Fig. 3 is a vertical sectional view on the line 3 3 of Fig. 2. Fig. 418 a similar view on the line 4 4: of Fig. 2. Fig. 5 is a detail View of the handle and the link.

Like numerals of reference designate corresponding parts in all the figures of the drawings. I

1 designates a casing designed to be conprovements in to be manufactured of any ornamental design to adapt it for the device to which it is to be applied, and the said casing, which is provided with a removable back plate 2, has a rectangular body portion to receive the latch and lock mechanism. Extending through an opening at one of the sides of the casing is a pivoted bolt 4, provided between its ends with a perforation for the reception of .a stud 5, which forms a pivot for the locking-bolt. The projecting portion 6 of the locking-bolt is beveled and is adapted to engage a suitable keeper, and it is normally held in such engagement by a spring 7, arranged beneath the inner portion of the bolt and having one end Serial No. 84,414.. (No model.)

engaged with a pair of studs 8 and 9, and its other end bears against the inner arm or portion of the bolt. The'inner arm or portion 10 of the bolt is reduced and provided with a pivot or stud 11, which fits in the lower end of a link 12, and the latter is provided at its lower end with a circular aperture for the reception of the stud 11. The intermediate portion of the link 13 is slightly bowed and is provided with apertures 14; located at opposite sides of an intervening cross -piece 15, andreceiving the projecting portions of a lug or arm 16 of a handle 17. The handle 17, which is approximately U-shaped, as clearly illustrated in Fig. 5 ofthe accompanying drawings, is mounted on the front of the casing bya transverse pivot 18, consisting of a rod or pin, which passes through suitable perforations of the upper ends of the sides of the U-shaped handles. The arm or lug 16, which extends into the casing, is provided with a recess 19 to receive the transverse por tion 15 of the link, and the sides of the engaging end of the arm extend into the slots or openings 14. By this construction the handleis positively connected with the pivoted locking-bolt, and when the handle is drawn upward the link is moved downward, and it carries with it the inner arm of the pivoted locking-bolt, whereby the outer arm is raised to disengage it from the keeper.

When the exterior handle is swung downward, the link is raised, and this downward movement is automatically efiected by means of the spring 7, which lifts the inner arm of the bolt when the latter is free to move. The pivot of the exterior handle may be mounted on the casing in any suitable manner, and it extends across the inner face of the front of the same, as clearly shown in Fig. 2.

The locking-bolt is positively held against movement by means of a tumbler 20, pivotally mounted within the casing at a point above the bolt by means of a stud 21 and arranged to oscillate in a recessed'portion 22 of the bolt and provided with a shoulder 23, adapted to extend beyond the recess and engage the upper edge of the bolt, whereby the latter is firmly held in engagement with the keeper. The upper portion of the casing is provided with a keyhole 25, and the tumbler I has a projecting portion arranged adjacent to the keyhole and provided with a recess 26, adapted to receive a key, which engages the tumbler at either side of the recess-to throw the tumblerinto and out of engagement with the bolt.

It will be seen that the combined lock and latch is exceedingly simple and inexpensive in construction and that the link: connection between the lug of the handle and the arm of the bolt enables the handle to oscillate the bolt positivelyin either direction and permits the spring to return the handle to its initial position.

The tumbler is held against accidental movement by means of a coiled spring 28, disposed on the pivot of the tumbler and interposed between the latter and the rear plate of the casing. 7

What I claim is In a device of the class described, the combination of a casin g, a bolt pivotally mounted within the casing and provided with a stud, a handle pivotally mounted on the casing and provided with abifurcated lug extending into the casing at one side of the bolt, and a link located wholly within the casing and arranged at right angles to the bolt and extending therefrom to the lug, said link being provided at one end with an aperture to receive the stud and having near its other end, a bowed portion provided with apertures receiving the sides of the bifurcated portion of the lug and forming a cross-bar for engaging the latter, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

DANIEL W. TOWER.

Witnesses:

GEORGE F. SINCLAIR, MARGARETE JoHNs.

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