US1781994A - Wrench - Google Patents

Description

Nov. 18, 1930.

F. M. WILSON I WRENCH Filed May 28, 1929 Inventor F 0/5 M'Xran A itofney die forming shank and regulated or adjusted course is 'forinedwith teeth, which cooper Patented Nov. 18, 1930' I I i I UNITED STATES; PATENT oFFicnon-1) M. WILSON, or LIBERAL, KANSAS, AssIoNoa OFONEV-HALIE TO HENRY n.

SNYDER, or LIBERAL, KANSAS r WRENCH Application filed May as, 1929. Serial No. assess.

This invention relates to an improved which is loosely disposed in said sheath. wrench of the species referred to in the art This pawl has its apex portion equipped with as a quick adjustable wrench, wherein the alaterally directed keeper 12', which coopermovable aw is slidablyarranged on the ham ates directly with the rack 6i 1 This keeper of by quick acting retaining means. 7 ate with the teeth on the'rack. 'Thei refer My object is to generally improve .upon 'ence character 13 designates a pivot which wrenches of this class by providing one which connects the pawl with-an operating yoke let; is characterized by a novel movable aw con-. 'lhisis of U-shaped form and the arms em- 0 struction, and arrier or retaining means brace the shank. The lower end of the outer 60 th f r, wall of the sheath 9 is provided with a curved In carrying the invention into effect, I have thumb hook 15 which is. disposed in opposed evolved and produced an improved assembly relation to the yoke 1 The body portion of of parts forming the movable. jaw units, the pawl extends through and beyond the v 15 wherein the parts are themselves novel and sheath where it is provided with an enlarged 65 I cooperable in a distinctly new manner, for head l6 having work engaging teeth. 7 7 providing a structure which is expeditiously This. constitutes the movable jaw per S8. operable and quick and dependable in action. Then, there IS a (301i spring 17 which has one The specific elements and their cooperation end seated in a socket in the pawl to. tip the p 20 will become more readily apparent from the teeth into engagement with the rackli and 7 following detailed description and the acco-nie the opposite end bearing against the sleeve 8. panying drawings. NVith this arrangement, it is obvious that In the accompanying drawings, wherein the entire unit 7 may be longitudinally shifted like reference characters are employed to destoward and from the aw 5 by simply pressgnate like parts throughout the same: ing against the linger yoke 14. This will dis- 7.

Figure 1 is a side elevational view showing engage the teeth oi" the keeper 12 from the the handle construction and the adjustable rack teeth 6, and the desired resiliency and movable jaw unit. pivotal motion prov-i1 d to facilitate this Figure 2 is a horizontal section, taken apdisengagement and reengageinent. Thus a so proximately upon the plane of the line E22 novel quickly adjustable wrench is provided. so of Figure 1. It is evident from the description and Figure 3 is a side view of the movable jaw drawings that I have described and produced clement per se. 3 a simplified and economical type of wrench Referring now to the drawings, by referwhich has been previously unequalled in the once numerals, it will be observed that l desart, and which is practical and dependable in 'ignates the shankwhich has the right anguaccomplishing the requirements of a tool of larly disposed fixed tooth equipped jaw 5, this class. Persons skilled in the art to which at its outer end. This is the stationary jaw. the invention relates, however, will be able to Along one edge of the shank at a predeterobtain a clear understanding of the same by i0 mined point, are retaining teeth constituting considering the description and drawings to o a rack 6. The movable jaw unit, generally gether. Therefore, a more lengthy descripdesignated by the reference character 7 is tion is believed to be unnecessary. slidable on the shank and cooperable with Minor changes in the shape, size, materials, the rack. Thisunit comprises a mounting and rearrangement of details coming within which includes the sleeve portion 8, embracthe fieldoit invention claimed maybe resorted 9 ing the shank and a sheath portion 9, which to, in actual practice, if desired. projects outwardly in substantial parallel- I claim: ism with the jaw 5. Arranged in this sheath In a wrench of the class described, a shank is flat spring 10, hearing against one edge having a longitudinal rack on one edge and of a substantially wedge shaped pawl 11 provided at its outer end with a right anguwe larly disposed stationary jaw, amovable jaw unit slidable on said shank and comprising a mounting including a sleeve portion snugly embracing and slidable on said shank, and a sheath projecting outwardly in substantial parallelism with said stationary jaw, a pawl loosely disposed in said sheath having its upper end projecting beyond the upper end of the sheath and formed into a toothed jaw and having its lower end projecting below the corresponding end of the sheath, directed laterally and formed with teeth for engaging the rack teeth, spring means in said sheath acting 011 said pawl to tip said teeth into engagement with said rack, an operating element for the pawl embracing the shank, the

operating element comprising a yoke, and a thumb hook depending from the outer wall ofthe sheathin opposed relation to. the yoke to facilitate operation'of said elements.

In testimony whereof I aiiiX my signature.

' FORD M. WILSON.

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