US1335293A - Wrench - Google Patents

Description

iiiirriii) s'rATiis nmiinir OFFICE.

HARRY G. Nonwoon, or B L'r MoRnMAnY'LANn, ASSIGNOR 'ro EMIL J. KLEMM, or

' 1' BALTIMORE, MARYLAND.

WRENCH.

Specification of Letters Patent. Patented luau 30, 1920.

Application filed May 8, 1919. Serial No. 295,751.

To all whom it may concern:

Be it known that I, HARRY Gr. NoRwooD, a citizen of the United. States of America, residing at Baltimore, and State of Maryland, have invented certain new and useful improvements in Wrenches, of, which the foll wing is a specification.

This invention relates to certain new and useful improvements in wrenches, particularly designed for operation upon nuts, pipes or rods of various diameters in an expeditious manner.

The primary object of my invention-is to provide an extremely efiicient and durable wrench of this kind composed of a'minimum number of simple, cheaply and easily made parts whereby the public may be furnisheda practical wrench at a nominal cost.

Another object of the invention is to provide a wrench including a sliding side jaw so associated with an end jaw as to automatically assume adjusted positions relativeto the end jaw as required by nuts, pipes or the like of differing diameters.

"With the above general objects in view, and others that will become apparent as the nature of the invention is better understood, the same consists of the novel form, combination and arrangement of parts hereinafter more fully described, shownin the accompanying drawings and claimed.

in the accompanying drawing, wherein like reference numerals indicate corresponding parts throughout the several views,

Figure 1 is a side elevational view of a wrench constructed in accordance with my in vention,

Fig. 2 is an edge view toward the right of Fig. 1.

Fig. 3 is a view similar to Fig.

thereof looking 2, partly broken away, looking toward the left of Fig. 1

Fig. 4 is a top plan view of the wrench,

Fig. 5 a sectional view taken substantially on line V-V of Fig. 1, and

Fig. 6 is a longitudinal sectional view substantially on line VI-VI of Fig. 1.

The present wrenchlis preferably formed by stamping two sections from sheet metal and one section includes a flat handle 5 reduced in width at one end to provide an inclined inner edge portion forming the face of a rigid jaw 6. Thehandle 5 is off-set uniformly from edge to edge adjacent the jaw 6 as at 7 so as to provide an inclined guideway open at one side and provided with a flat bottom 8 and flat parallel sides 9.

. The other section of the wrench includes a relatively short shank 10 arranged within the guideway upon the bottom 8 thereof and having its longitudinal edges substantially contiguous with the sides 9 of the guideway, said shank having its outer face substantially flush with the adjacent side face ofthe handle 5 and being of a length substantially equal to that of the guideway.

The shank 10 is provided with a longitudinal slot 12 through which projectsthe pin 13. rigidly secured in a desired manner to the handle 5 to extend laterally therefrom at about the center of the guideway bottom 8, the pin 13 being headed to retain the shank and handle in operative relation but to readily permit the shank to slide a limited 3 distance longitudinally within the guideway. Rigid with and extendingontwardly from the inner end of the shank 10 at an acute angle relative to the latter is a sliding side jawli, having a toothed face 15 006perating with the face ofthe jaw 6 to provide a substantially V-shaped space-therebetween for the introduction of the work.

In operation, the nut pipe or the like or other work is introduced between the opposing faces of the jaws 6. and 14, whilethe handle 5 is grasped in one hand, at which time the jaw 14 is free toslide or move away from the jaw 6 as indicated by dotted lines in Fig. 1 to insure a proper grip with work of various sizes. The handle 5 is then swung toward'the left in Fig. l and the work thereby rotated.

Shearing action and other wear and tear upon pin 13 is obviated by the prevention of relative swinging of shank 10 and handle 5 due to the contiguous edges 11 of the shank and the sides 9 of the guideway, while the inclination of theguideway has been found to make the wrench more practical and durable than if the same were arranged at right angles to the longitudinal axes of the hand e 5, the latter necessitating the projecting of the free end of the-shank beyond the edge of the handle. V

It will thus be seen that I have provided a very simple, which may be practically entirely and cheaply formed by stamping two sections eflicient and durable wrench its invention will be readily understood and appreciated from the foregoing description by those skilled'in the art, and, while the form of the invention herein shown and described is what is believed to be the preferablev embodiment thereof, it is nevertheless to be understood that minor changes may be made therein without departing from the spirit and scope of-the invention as claimed. Y i

What is; claimed is: 1

1; -A wrench comprising a flat handle having an integral jaw on one end thereof provided with an edge face, said handle being uniformly offset adjacent'said jaw from edge to edge to provide an open-sided inclined guide-way of uniform width from end to end, and a flat shank slidably snugly fitted and held against lateral and pivotal movement in said guide-way and having an integral side jaw extended outwardly from the inner end thereof, the last named jaw having an edge face cooperating with'the face of the first-named jaw.

2. A wrench comprising a flat handle having an integral jaw on one end thereof provided with an edge face, said handle being uniformly ofi'set adjacent said jaw from edge to edge to provide an open-sided inclined guideway of uniform width from end to end, anda fiat shank slidably snugly fitted and held against lateral and pivotal movement in said guide-way and having an integral side jaw extended outwardly from the inner end thereof, the last-named jaw, having an edge face cooperating with the faceof the first-named jaw, said shank being equal in length to the'length of the guideway;

3. A wrench comprising a fiat handle having an integral jaw on one end thereof provided with an edge face, said handle being uniformly offset adjacent said jaw from edge to edge to provide an 0pen-sided inclined guide-way of uniform width from end to end, a flat shank slidably snugly fitted .and held against lateral and pivotal move- 'ment in sald gulde-way and havlng an integral side jaw extended outwardly from the inner end thereof, the last-named jaw having an edge face cooperating withthe face.

an open-sided inclined guide-way of uniform width from end to end, a flat shank slidably snugly fitted and held against lateral and pivotal movement in said guide-way and having an integral side jaw extended outwardly from the inner end thereof, the last-named jaw having an edge face cooperating with the face of the firstnamed jaw, and means to limit the movement-of the shank relative to said handle and to retain the shank and handle operatively related. 1 V

5. A wrench comprising a flat handle having an integral jaw on one end thereof provided with an-edge face, said handle being uniformly offset adjacent said jaw from edge to edge to provide a guide-way open at one side, and a flat shank slidably snugly fitted and held against lateral and pivotal movement in said guide-way and having an integral siderjaw extended outwardly from one end thereof, the last-named jaw having an edge face cooperating with the Vface'of the first-named jaw. V I

In testimonyywhercofl aflix my signature.

HARRY G. NORVVOOD.

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