US620121A - Wrench - Google Patents

Description

Patented Feb. 28, |899. C. T. GUILD.

No. 62mm.

WRENCH.

(Application vleA'l Sept. 27, 1898.)

(NuModel.)

Inven o 7^:

Znesses.-

5% Kufe-eem@ UNITED STATES PATENT OFFICE.

CHARLES T. GUILD, OF NORTH ATTLEBOROUGH, MASSACHUSETTS.

WRENCH.

SPECIFICATION vforming part of Letters Patent No. 620,121, dated February 28, 1899. Application led September 27,1898. Serial No. 691,970. (No model.)

To all whom it may concern:

Beit known that I, CHARLES T. GUILD, of North Attleborough, in the county of Bristol and State of Massachusetts, have invented certain new and useful Improvements in Bicycle-Wrenches', of which the following is a specification.

The object of my invention is to produce a wrench in which the movable jaw can be easily and quickly adjusted without the use of worm-gear and which is held securely in its adjusted position.

While I have especially intended my invention to be applied to bicycle-wrenches,lit is applicable to other kinds of wrenches. l

My invention consists in a wrench having the novel features of construction which will now be fully described and which will be particularly pointed out in the claim at the end of the specification.

In the drawings, Figure l is a side elevation of a wrench embodying my invention. Fig. 2 is a cross-section on line 2 2 of Fig. l. Fig. 3 is a cross-section on line 3 3 of Fig. l.

Fig. 4 is a detail of the spring which holds the ratchet-teeth of the two members in engagement.

The xed jaw l has a shank 2, the continuation of which forms the stock 3 and handle of the wrench. The inner edge of the stock portion is formed with ratchet-teeth l0,which incline toward the jaw, the shank portion being left with a smooth edge for the movable jaw to bear upon. The movable member is formed with a'jaw 4 and a rearwardly-extending slide-bar 51, the rear portion of which is formed with ratchet-teeth 1l, which engage with the teeth on the stock 3 of the fixed member. The movable member is loosely clamped to the xed member by yokes 5 6, which are riveted to the slide-bar 5l. The yoke 5 has sufficient clearance-space between it and the back edge of the stock to receive a compressing-sprin g 7, which normally holds the teeth of the two members in engagement and retains the movable jaw in its adjusted position. By pressing up on the lower end of the yoke 5 the spring 7 is compressed, allowi ing the teeth to become disengaged and per; mitting the movable jaw to be vmoved in either direction for adjustment. The yoke 6 should be just loose enough to allow for the adjustment of the yoke 5 and to permit of the sliding of the movable member, but not so much clearance is required as for yoke 5. It is obvious that the teeth of the movable member may ride over the backs of the teeth of the iixed member and permit the movable jaw to be brought toward the fixed jaw by simply pushing on the end of the slide-bar 51; but there can be no opening movement without pressing up on the yoke 5. The spring 7 is preferably a flat arched spring, with ears 8, which prevent its slipping out of place. Projecting from the side of the stock 3, near its outer end, is a stud 9, which serves as a stop to limit the extent of rearward move= ment of the slide=bar.

What I claim as my invention is;

A wrench consisting of a member having a iixed jaw and a shank having on its inner edge ratchet-teeth, in combination with a movable member having ratchet-teeth which engage with the teeth of said fixed member, yokes at tached to the movable member through which the shank of the fixed member passes loosely, an arched spring between one of the yokes and the back of the xed member which normally holds the teeth in engagement, said spring being formed with ears which hold it in place between the yoke and the fixed member, substantially as described.

In testimony whereof` I have affixed my signature in presence of two witnesses.

v CHARLES T. GUILD.

Witnesses:

WILLIAM A. COPELAND, OSCAR F. HILL.

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