US1527593A

US1527593A - Lock and locking device

Info

Publication number: US1527593A
Application number: US690981A
Authority: US
Inventors: Loeb Jacques Arthur
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-02-06
Filing date: 1924-02-06
Publication date: 1925-02-24
Anticipated expiration: 1942-02-24

Description

' Feb. 24. 1925. 1,527,593

" J. A. LOEB Locx AND Locum DEVICE Fil ed Feb'. 6, 1924,

IN KEN TOR.

Patented Feb. 24, 1925.

PATENT OFFICE.

JACQUES ARTHUR LOEB, OF NEW YORK, N. Y.

LOCK AND LOCKING DEVICE.

Application filed February 6, 1924.

To all whom it may concern:

Be it known that I, JAo Uns ARTHUR Lone, a citizen of the United States, residing at 97 Fort lVashington Avenue, New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Locks and Locking Devices, of which the following is a specification.

The object of my invention is to provide a means whereby a lock or locking device can be operated only by inserting the key through the outer face of the look at a point remote from the operating point of the looking mechanism.

To this end my said invention contemplates the use of a keyhole or key slot so constructed that, at the point where the key opens the lock or locking device, the keyhole itself is too small to admit the key.

Furthermore, the key is to fit the keyhole at a point remote from the point where said key opens the lock or locking device.

Referring to the accompanying drawings:

Figure 1, is a front face view of one form of the invention.

Figure 2, is a plan view of one form of key for lock shown in Figure 1.

Figure 3, is a cross-section through the head 9, of key shown in Figure 2.

Figures t and 5, are front face views of other forms of said lock.

Referring to the drawings in detail, the invention is illustrated as applied to a lock with an elongated keyhole 6, having one end 7, so constructed that it fits the unlocking end 9 of key shown in Figure 2.

The keyhole 6, is so constructed that the point 7, where the key enters the outer surface of the lock is remote from the point 10, where key opens or operates the lock or locking device, and all other parts of the keyhole are consequently only wide enough to admit or fit the shaft 8 of the key shown in Fig ure 2.

In practice my locking device is operated in the following manner:

1. The key is inserted through the outer surface of the lock at the point 7 sufficiently deep, so that the prongs or enlarged portion 9, will be below the surface of the lock.

2. The key is then moved laterally to the Serial No. 690,981.

point 10, where the prongs or enlarged portion 9, engage the operating mechanism of the lock.

3. The key is then manipulated (either by turning or depressing or other suitable operation) so as to move the lever ll, into unlocking position.

a. The key is then moved laterally back to point 7 and withdrawn from the lock.

While only one form of key is shown in my drawing, it is to be understood that the key may be of any suitable shape, the only necessary feature being that the shaft of the key is smaller than the enlarged portion ad jacent to the end thereof.

Moreover, it is obvious that the keyhole may be of any desired shape, it being only necessary that one end or portion of the keyhole shall conform to the enlarged portion of the key.

Furthermore, while the slot shown in my drawing is straight, it is obvious that the same purpose may be accomplished if the slot were not straight but were a curved or broken line.

It will be apparent from the foregoing, that quite a simple and eiiicient arrangement has been devised by me for carrying out the purpose of the invention, and the operation of the same will be readily understood.

I claim:

1. A locking device with a laterally elongated keyhole which fits the key at a point remote from the point at which the key operates the locking device.

2. A locking device having a. surface slot one end of which slot is adjacent to the operating point of the locking mechanism and the other end of which slot is laterally remote from the operating point of such mechanism, and is of such shape as to admit the key with which the lock is to be operated.

3. A locking device having for the reception of the key a surface slot extending from a point adjacent to the operating mechanism to a point remote therefrom, said slot being adapted for the insertion of the key at a point remote from the operating mechanism.

JACQUES ARTHUR LOEB.