US1337114A - Safety-catch for pins - Google Patents

Description

G. W. BMNTON.

SAFETY CATCH FOR PINS. APPLICATION FILED JULY 31. m9.

Patented Apr. 13, 1920.

WM/wens UNITED STATES PATENT @FFCE.

GEORGE W. BAINTON, 0F PROVIDENCE, RHODE ISLAND, ASSIGNOR 0F ONE-HALF TO ROLAND & VJI-IYTOCK COMPANY, OF PROVIDENCE, RHODE ISLAND.

SAFETY-CATGH FOE PINS.

Application filed July 31, 1919.

To all whom it may concern Be it known that I, Gnonon IV. BAINTON, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented new and useful Improvements in Safety-Catches for Pins, of which the following is a specification.

This invention relates to certain new and useful impro ements in a safety catch for pins and it has for its primary object to provide a safety device which will function even though the same be not in its fully operative position.

- The invention resides in a peculiarly shaped safety catch having a part disposed so as to obstruct the opening to the keeper during the initial portion of the movement of the lock from full operative to full inoperative position.

Further, the invention resides in the features of construction hereinafter described and clain'ied, reference being made to the accompanying drawing wherein Figure 1 is a bottom plan view of a bar pin equipped with the improved safety catch:

Fig. 2 is a side elevation thereof:

Fig. 3 is a transverse vertical. section through the safety catch on line 33 of Fig. 2, depicting the catch fully opcratively disposed: and

Fig. I is a similar view showing the catch swung from its fully operative position.

The article of jewelry, or the like, to which the present invention is applied is designated by the numeral 1 and its pin by the numeral 2, said pin having its piercing end engageable in and adapted to be secured by the safety catch.

This safety catch comprises a keeper l divided into two parts 3-3, which are formed with registering slots 5 that extend downwardly at an incline and open laterally. A lock or latch member 6, substantially of U-form is interposed between the keeper parts 3-3, and pivoted thereto by a pivot pin 7 passing'through the extreme end of the outer leg or arm 8 of said U-member.

Specification of Letters Patent.

Patented Apr. 13, 1920.

Serial No. 314,474.

This arm is provided with a projection or lift 9 extending beyond the keeper whereby it may be engagedby the finger to effect swinging of the lock member. The opposite leg 10 of the U-member is shorter than the outer leg and is pointed. The slot of the U-member has its outer wall inclined substantially in alinement with the adjacent side wall of slot 5 while the inner wall diverges slightly therefrom to afford ample room to clear the pin when in its keeper.

The operation of the safety latch is obvious from the foregoing description, the

-pin being first engaged in its keeper slot while the U-block is disposed in the dotted position of Fig. 4, after which the same is swung to tie fully closed position depicted in Fig. 3. Should the lock member accidentally swing or move from its full, operative position the leg 10 will lie across the keeper s ot and bear against the pin to hold it firmly in the keeper. Fig. leshows the point of the leg 10 just leaving the pin whereby the latter is free to be withdrawn from its keeper. Because of the position of pivot 7 and the incline of slot 5, any lateral pressure on the pin will not tend to swing the lock member from its full operation. Consequently this simply constructed safety catch cooperates with the pin to hold the former active. Furthermore a latitude of iovement is afforded the lock without rendering it inoperative.

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

1. In a pin safety catch, a keeper having an upwardly extending slot therein to receive the pin, and a substantially U shaped lock having one leg slightly larger than the other and pivoted to the keeper adjacent the slot whereby upon accidental release the smaller leg will 'be maintained across the slot until the lock is positively swung past the center of gravity.

2. In a pin safety catch, a horizontally extending keeper having an upwardly extending inclined slot to receive the pin, a substantially U shaped lock pivoted at one leg thereof to the keeper adjacent the slot In testimony whereof I have signed my and adapted to be swung Within the keeper name to this specification in the presence of to look the pin between the bottom Wall of two subscribing Witnesses.

the slot and the bottom Wall of the U of GEORGE W. BAINTON. 5 said lock, and the pivoted leg of said 1001: Witnesses: 7

being slightly larger than the other leg as BESSIE P. TOOMEY,

and for the purpose set forth. J. A. MILLER.

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