US1060891A - Wrench. - Google Patents

Description

A. B.v GARLL.

WRENCH.

APPLICATION FILED JULY 16,1912.

, 1,060,891. Patented May s, 1913.

" VII/l j I fly il 15 l WxTNEssEs i 4),j'lfllNVENTOR w ma ' ATTORNEY 'UNITEDSTATES PATENT OFFICE.

ADDISON n. CARLI., on BooT'HwYN, rnNNsYLvANIA.

WRENCH.

This fnventionv` has reference .to improvements in wrenches, and relates. more par-V ticularly to the type of wrench wherein the movable )aw has its shank extending through the body'of'the wrench at substaw' tially right angles to the ixed'jaw, which latter projects'in generally theudirection of the length of the handle. I

strong and free age as occurs 1n made.

shall be compac-ndlight and 'ike wrenches as heretofore In accordance with the present invention" i the handle and fixed jaw are closelygin yline one with the other, although the working face of the fixed .jaw is arranged at an acute. e

angle to the central-'longitudinalline othe` and between, the xed jawl andhandle, handle the body of the wrench islaterally expanded'andprovided with a passage at right angles to that act-ive face of the fixed jaw employed for turning nuts or thelike. The side walls of this passage are made of a total thickness equal to that of the jaw or handle, so that there is no diminution of strength in this part of. the wrench, despite the presence of the passage therethrough, and this passage is so shaped as to guide the shank of a movable jaw without the necessity of any guiding tongues or grooves,

40 while traversing -the body of the wrench in a manner to intersect the rear edge of th'e passage is another passage for the reception of the feed screw. The body of the wrench is expanded in the direction'ot the length of the passage, so that while the front wall of the passage, that is, the one next to the fixed jaw, is of a length about that of the correspondingi,r end of the fixed jan, the rear wall ot'the passage is laterally elongated in both directions, so as to form an extended support for the corresponding edge of the movable aw shank, the movable jaw and its shank being of approximately the same thickness throughout, which thickjA ness is the same as that of the fixed jaw...

The invention also comprises in conjuncv Specincaton of Letters Patent.

It is the object of v the present' invention' to provide a wrench of this character whlch-4 et markedly.

om danger o such break-7 of the invention. A

.face 6 4if both thickness a Patented May 6, 1913.

application mea my 1e, i912. serial No. 709,767.

tion with the structure herein described an adjustable handle, so arranged that the -angle of the handlewith respect to the jaws may be changed at will throughout av considerable range.

' The invention will be best understood from-a consideration of the following,- detaileddescripticn, taken in connection with the accompanying drawings forming apart 55 of this specication, with the Jfurther under'standing that while the drawings show1 practical forms ofthe invention, it is susceptible of other practical embodiments', wherefore the invention isnot lconfined-to any strict conformity with thev showing of the drawings, but maybe changedand modi fied within such limits as do not mark any materialldeparture `from the salient jteatures l '15 In 'the accompanying drawingsjyfg-Figure \1 is a side elevation of a` wrench chiistructed f in Aaccordance with the present invention.

Fig. 2is a bottom plan view thereof. Fig.

3' is a side elevation of a wrench wherein the a0 handle portion is adjustable with relation to theremaining portion of the wrench. Fig.'

4 is a section on the line 4 4 of Fig. 3.

Referring to the drawings, and more especially to the form shown in Figs. .l and 2, the wrench is provided with ahandle 1 of appropriate shape, a body portion 2, and

a fixed jaw 3, all constructed as one casting or forging. The handle and jaw 3 may be of substantially the same thickness, while the body portion 2 is expanded in -the direction of the width ot the handle, and then tapers as indicated at et, 5, toward the jaw 3,

the taper 4 meeting one iace (3 of the jaw 3 at an angle thereto, and the taper 5 merging 95 into -a face 7 of the jaw in substantial alinevment therewith, the face 7 being usually serrated, as

is customary` in alligator wrenches, and

this face .7 would meet the faces were continued beyond 10o the outer end of the jaw 3.

'lraversing the body 2 of the wrench between the tapered pdrtions 4, 5 is a passageA 8v at substantially right angles to the face 6 of the jaw 3, and of a width equal to the 10a distancejnetween the ljaw 3 and the sepa-- rated ends-.of the tapered portions et and'5. This passage .is fianked by walls 9, each of a bont halt the thickness of the jaw 3 or body portionl, which jaw andbody A11o portion are of approximately the 'same thickness except that the interior portion of the handle 1 is thinned to a web 10, such construction contributing to the lightness ,of

the wrench without. undue sacrifice 'of' strength. 'lhe passage Shas its ends rounded.and receivs the Y,shank11 of a movable jaw 12` the shank and jaw being of substantially the saine thickness' throughougsuch,A

thickness being that ofthe jaw 3, and the jar.' 12 is formed with a plane face 13 ex.

tending at right angles -to thefshank matching the face 6 of the jaw 3.,

That 'portion of the head2 between the and j walls l and the handle 1 is of a thickness correspondingl to the thickness of the edges of the handle 1 and jaw 3, and is traversed by a passage 1li, the forward ledge of which intersects the rear edge of the passages, and this passage 14 is substantially opposite the wider end of the jaw 3 where it joins the walls 9. Lodged within the passage 14 is a feed screw 15 mounted on a pin 16 as is customary in jaws of this character, While the 'corresponding edge ofthe shank11 is formed -with'teeth 17 with -Which the -feed screw 15" engages, the construction of feed'screw an'd teeth .or rack being the'same asis customary in wrenches o'fthis character.

' of the wrench which heretofore 'in wrenches. Y of this character have been-easily broken.- 40

It is vto be observedthat the 'doubly' ex-` tended rear wall of the passage 8 gives an elongated bearing for the shank'of the movable jaw, thus greatly strengthening the wrench, while the lateralelxpansi'on of the body of the wrench where traversed by the passage 8 andv the thickening of the Walls 9 until the combined thickness of these wallsv is equal to the thiclgiess of the rest of the Wrench, greatly strengthens those portions At the same time the- Wrench is of the thin or dat type, making it possible to manipulate Ynuts or other articles where a thicker Wrench would not work. 'The jaw 12 is reversible', so that its Working face 13 may be brought l-opposite the toothedxface 7 of the j a-W '.3, thus converting the Wrench from an ordinary -smooth jaw nut Wrench intoan alligator wrench. The feed screw or nut 15 is located so as to engage theteeth 17 ofthe movable jaw substantially intermediate of a rearward j projection of the'base of 'the fixed jaw pershaped portion is provided with gear teeth 1f), while t-h'e opposite walls of the'arcshaped portiohare each formed with a cur-ved groove 5' 2 0.- 'Y A handle 1" is provided, which in gen- ,.eral construction is the, saine as the handle l ofthefstructureshown in Fig. 1', except that at.: one end Athis handle-,is thickened and' tli'eotlier, so as to straddle the -arc-shaped portion 18 where provided with thefte'eth 19, and't'o'enter the grooves 20. This expanded portion of the handle 1 carries a feed screw 22 heldinplace by'a .pivot pin 23 and engaging the' teeth 19, so that by manipulation of thefeed screw 22 the jaw carryinghead of 'formed with tongues'21 directed one toward `the wrench may beladjusted about the .center-5 ofgeneration ofthe arc-shaped ortion 18, while the jaw.I 12 maybe adjuste as inthe form shownin Fig. 1 without reference to theangle of the'handle' to the head. The 4rela'tio'n of the jaws 2 and 12 one to 'the other and, to the main port-ion ofthe-head of the Wrench in the form shown in Fig. 3 is sub- -I stantially that ofthe form 'shown in Fig.A 1,k

so that specific description of this part of the wrench is unnecessary, the same reference numerals being applied'tothe parts of thel wrench: shown 1n F1g.3 which are counterpartsof the' structures shown in Fig. 1. @What is claimed is wrench terminating 'at one-'end in` a fixed `-j'aw-extendin in the same 'general direction as the hand e of the wrench and prof vided vWitha movable jaw having a shank in 'laterally traversing relation to the wrench 'and tothe fixed jaw, the fixed jaw having 'oppositely disposed active edges 'and the I movable jaw :being insertible into and removable-transversely of the-wrench from 'either side to bring the movable jaw into operative relation to either active edge of the xed jaw, at will, the movable jaw hav- .ing 'alaterally extending bearing for its rear edge in the body of the wrench and said rear edge being toothed, and a nut mounted in engagement with the `teeth of the movable jaw substantially intermediate ofthe rearward projection of the base of the fixed jaw faces perpendicularto said base, the fixed jaw having one active edge perpendicular to the transversely elongated bearing and ap'- -proximately intermediate thereof, and the other active edge inclined toward the corresponding .end of the laterally elongatedA bearing. Y

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses..

A. B. CARLL. Witnesses: i

JOHN B. Hour, 4 ORvrL W. SMITH.

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