US38914A - Improvement in wrenches - Google Patents

Description

UNITED STATES PATENT OFFICE.

J. J. RICHARDSON, OF WOODSTOOK, VERMONT.

IMPROVEMENT IN WRENCHES.

Tall whom t may concern:

Be it known that I, J. J. RICHARDSON, of Woodstock, in the county of Windsor'and State of Vermont, have invented a new and Improved Ratchet-Wrench; and I do hereby 'declare that the following is a full, clear, and

exact description ofthe same, reference being had to the accompanying drawings, making a part of this specification, in which- Figure 1 is a side view of my invention with one of the side pieces ot' the shank of the wrench removed; Fig. 2, an edge view ot the principal part of the same; Fig. 3, an end view of the removable socket pertaining to the same; Fig. 4, a perspective view of Fig. 3; Fig. 5, a perspective view of the ratchet pertaining to the same.

Similar letters otl reference indicate corresponding parts in the several figures.

This invention consists in the employment or use of a ratchet two pawls, a spring, and a removable socket arranged and combined in such a manner that a nut may be turned by an oscillating movement without taking the wrench from it., and the same wrench ren dercd capable of being applied to dit't'erentsized nuts.

The object of the invention is to obtain a wrench which may be used in those cases where it would be inconvenient or impossible, on account of a restricted space, to use an ordinary wrench, or one which requires to be removed from the nut and applied at every turn of the same.

To enable those skilled in the art to fully understand and construct my invention, l will proceed to describe it.

A represents the handle ot" the wrench, which may be of wood; and B is the metal shank, which is composed of two parts, a a', one part, a, being' iitted in the handle A, and the other part, a', screwed to a by screws b. The outer ends of the two parts c a of the shank B terminate in eyes c, in which two cylindrical bosses, d d, are fitted and allowed to turn freely. These bosses d d are at the two sides of a ratchet, C, and concentric with it, formingwhatmay be termed a hub7 forthe same. The ratchet and bosses have a square openin g, e, passing entirely through them, and

in this opening a socket, D, is tted, which.

also has a square opening, f, made through it, and is provided at one end with -a flange or shoulder, g.

E E represent two pawls, which are secured by a pin, h, between the tw-o parts a a of the shank B. One of these pawls, E, is a pulling one, and the other, E', a pushing or shoving one. rlhey are both connected by the pin h, and between the inner parts of said pawls a spring, F, is placed, which spring has a tendency to keep the pawls engaged with the ratchet C, as will be fully understood by referring to Fig. 1. The implement is used by placingthe socket D on the nut to be turned and then fitting the bosses d on the socket; or the socket D may rst be litted in the bosses d and the socket then adjusted on the nut, whichever is most convenient. The wrench is then operated with an oscillating movemen t,.

and the nut will be turned without removing the wrench from it, as the. pawls catch or engage with the teeth of the ratchet in moving in one direction, indicated by arrow 1, and slip over them in moving in the opposite direction indicated by arrow 2.

Several sockets, D, are used with the same wrench. These sockets are all ot' the same size externally, but the square openingsfare of different dimensions to suit different-sized nuts.

The whole arrangement is extremely simple and eflicient, may be constructed at a moderate cost, and there are no parts liable to become deranged by use or get out of repair.

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

The ratchet C, provided with two bosses, d d, which are itted loosely in eyes at the ends of the parts a a of the shat't B, in .combination with the pawls E E', spring F, and removable socket D, all arranged to operate as and for the purpose set forth. v

J. J. RICHARDSON.

Witnesses:

TI-roMAs MIDDLETON, NATHAN T. CHURCHILL.

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