US42961A

US42961A - Improvement in wrenches

Info

Publication number: US42961A
Authority: US
Publication date: 1864-05-31
Anticipated expiration: 1881-05-31

Description

UNITED STATES PATENT OFFICE.

W. C. NOYES, OF SEYMOUR, CONNECTICUT.

IMPROVEMENT IN WRENCHES.

Specification forming part of Letters Patent No. 42,961, dated May 31, 1864.

T0 all whom it may concern.-

Be it known that I, NV. C. NOYES, of Seymour, in the county of New Haven and State of Connecticut, have invented a new and Improved Screw-Wrench, and I do hereby deelare that the following is a full, clear, and `exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, making a part of this specieation, in whieh- Figure l is a side view of my invention7 partly in section; Figv 2, an end view of the same.

Similar letters ot' reference indicate like parts.

This invention consists in having the two jaws of the wrench at the end ot' the shank or handle, and the movable jaw arranged in such a manner that it is moved or adjusted in a line at right angles with the shank or handle, as hereinafter set forth, whereby a very strong and durable wrench is obtained, and one in which the leverage-power is not diminished under any adjustment ot' the movable jaw, or at any point within the scope of its movement.

A represents the shank or handle of the wrench, one end ot' which is of Hat form o; spread ont, as shown at a, with a projection at one side to form a stationaryjaw, B, which is in a line parallel with the handle A, and at a suitable distance at one side of it. At the opposite side of athere is secured by screws o'` otherwise a bar, C, which is parallel with thejaw B, and D is a bar the ends of which ale connected to the jaw B and bar C, the bar D being at right angles to the handle and parallel with the outer edge of a, as shown charly in Fig. l.

E is ascrew, which has its bearings in the jaw B and bar C, and is between the bar D and the outer edge of a, and has a thumbwheel', F, at one end of it.

G is a slidingjaw, of the same form as the stationary one, B. This jaw G has a hole made in it for the bar D to pass through, the former being allowed to slide freely on the latter, and the inner end of the jaw G rests or bears on the outer edge of a, the screw E passing through G and working in a female screw therein, so that by turning the screw E the jaw G may be moved back and forth from B. By this arrangement it will be seen that nuts are grasped between the two jaws B Gr by moving the latter through the medium of the screw E; and it will further be seen that the leverage-power of the handle will not be diminished under any adjustment of the jaw G, in consequence of the latter being moved in a line at right angles with the handle, and also that the jaw G is rmly supported and not liable to be broken or strained. The ordinary wrenches, in consequence of the Inovable jaw workin g on the shank of the wrench, have their leverage-power diminished, as the movable jaw is adjusted toward the point where the handle is grasped by the operator, and the movable jaw is,in consequence of not being rmly supported, liable to become strained or injured.

My wrench, in consequence of thejaws being arranged as shown, may be applied and used in eases where the ordinary wrenches cannot.

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

A screw-wrench having its stationaryjaw B at one end of the handle A and parallel with it, and provided with a movablejaw, G, fitted on a bar, D, and operated by a screw, E, all arranged substantially as set forth.

W. C. NOYES.

Titnessesz SARAH SMITH, B. W. SMITH.