US760146A - Key-fastener. - Google Patents

Description

No. 760,146. PATENTED MAY 17, 1904.

A. G. PIGKARD.

' KEY FASTENER.

APPLICATION mam 1130.11, 1003.

:10 MODEL.

Patented May 17, 1904.

PATENT OFFICE.

ADDIE C. PIOKARD, OF PERRY, OKLAHOMA TERRITORY.

KEY-FASTENER- SPECIFICATION forming part of Letters Patent No. 760,146, dated May 17, 1904.

Application filed December 11, 1903. Serial No. 184,757. (No model.)

To all whom it may concern.-

Be it known that I, ADDIE O. PICKARD, a citizen of the United States, residing at Perry, in the county of Noble, Oklahoma Territory, have invented a certain new and useful Improvement in Key-Fasteners; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in devices for fastening keys in looks, and comprises a simple and inexpensive device adapted to be fastened to the keyhole escutcheon and pivotally mounted and held, by means of a spring, within the keyholeopening, means being provided for holding the spring-actuated member in such a position that it would be impossible to Withdraw the key from the lock.

The invention consists, further, in certain details of construction, which will be hereinafter fully described and then specifically defined in the appended claims.

My invention is illustrated in the accompanying drawings, which, with the letters of reference marked thereon, form a part of this application, and in which- Figure 1 is an elevation showing my device as applied to the keyhole-plate, showing the same in a locked position. Fig. 2 is a similar view showing the plate thrown open to allow the key to be removed from the lock. Fig. 3 is an enlarged detail view of the springactuated key-retaining member. Fig. 4 is a sectional view through the apparatus, showing the cam-shaped edge of a locking member.

Reference now being had to the details of the drawings by letter, A designates a keyhole-plate having a keyhole A therein, and securely fixed to the plate is a bracket B, the arms B of which carry a pivot-bar O, which is integral with the plate F, and D designates a spring, (shown in dotted lines in Fig. 3,) one end of which is fastened within the inclosed portion K of said bracket and against which the pivotal bar forming a portion of said plate is adapted to bear as it is swung in one direction or the other, the spring buckling in order to hold the plate either at its farthest inner throw or at its outer limit. A lug F projects from one face of the plate F and is adapted to enter the keyhole such a distance as to just escape touching the key when the plate is in the position illustrated in Fig. 1. In order to lock the plate F in the position shown in Fig. 1, so that the key in the lock cannot be removed, a button N is provided, which is pivotally mounted upon the pin N, and the under side of the inner edge of said button is adapted to contact with the plate F and is cam-shaped, as shown in the detail view of the drawings, so that as the button is turned against the outer face of the plate F it will frictionally press against the same and hold it securely in the keyhole.

By the provision of a device embodying the features of my invention it will be observed that the plate F may be held when not in use out of the keyhole by turning the same back into the position shown in Fig. 2 of the drawings, in which position it will be held by means of the spring, which buckles as the plate is thrown down. hen it is desired to fasten the key in the lock, the plate F is swung into the position shown in Fig. l, and the button is turned so that the cam edge will en gage and securely hold the plate in position.

While I have shown my locking device as applied to one side of the door, it may be applied to both sides, if desired, and the details of construction of the device may be varied without departing from the spirit of the invention.

By the provision of a device embodying the features of my invention it will be observed that the key may be securely held in the lock, making it impossible for a person to remove the key from the opposite side of the door to that in which the key is inserted, and hence preventing the unlocking of the door by the insertion of a skeleton or false key.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A device for fastening keys in locks comprising in combination with a keyhole-plate,

a bracket fastened to said plate and provided With ears, a pivotal plate mounted upon said bracket-arms, a lug projecting from one face of said plate and adapted to enter the keyhole, a spring adapted to normally hold the pivotal plate at its limit in one direction or the other, and a button pivotally mounted upon the keyhole-plate and adapted to be turned against the pivotal plate to hold the same against the keyhole, as set forth.

2. A device for fastening keys in looks comprising in combination With a keyhole-plate, a bracket fastened to said plate and provided With ears, a pivotal plate mounted upon said bracket-arms, a lug projecting from one face

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