US1055729A - Pipe-wrench attachment for monkey-wrenches. - Google Patents

Description

W. 'BSTERBBM l PPEl WRENCH' ATTAGHMBNT OR MONKEY W-EENCHES.

Patented Maf. 1,1, 19153 i .'-To all whom/2f may concern:

UNITED sTiyrEs PATENT naaien,

'TWIL'LIAM nsrnmsnns, 0F sTooKToN, CALIFORNIA, AssIGNoRoF ONE-HALF fro FRA-Nels CUTTING, or sTocKToN, CALIFORNIA. 4

PIPE-waait a.

Aipuc'ation inea Aprn' 15, 1912. serial No. 690,939.

` Beit known that I, WILLIAM v'STERBERG,

- 'afeitizen ot the United YAStates, residing at Stocktomin the countyfo San Joaquin and State 'of' California7 have invented new and Y, .useful Improvements in Pipe-VVrench- Attachments for MonkeyJVrenehes,`of which the followingv is'afspeciiication, p

.My' invention.- relates to' van' attachn'ient especially Vdesigned forv use in combination with monkey wrenches. n It consists of a jaw having its face formed j to serve asa pipe Wrench, and lmeans by 'faja 'A which this jaw may be' eciently attached 1.5.

jayvsof the wrench.

to,,.and"'readily removed-from one of the S L also @comprises details of: construction whihhwill be more fully explained by ref {terence-tothe' accompanying drawings in '.wh'lchei'gura--L is a view of the wrench showing improved attachmentin place.; .Fig. 2 is 'a nerspective'vi'ew of the attachment. i

Asash'ownin the, drawings, A is a Wrench character known as monkey yvre'nches 27,. having the inner'andouter jaws 2' and "8; -Wrenches of .this character are eicintfor .the holdingor turningrof nuts f or 'articles having polygonal aces,'.but for. 3.o' lindrical object they do. not have suiicient' the purpose of' holdingor turning aV cygrip, on account'ofiheimpossibility of forcing thel iavvs together Awith suicient pressure, and for the purpose'uof turning rods or pipesfit is necessary torhave a gripping attachmentl of some character. Wrenches a-rejtherefore, made havingsuch gripping jaws as a Apermanent part of their'structure, but forthepurp'ose of general use I haveV designed a means for applying a corrugated jaw Whenverneeded and which is readil `removable when the wrench" is design rIhis mzte'nsion is turned over, asshown at and'again turned to form a hooked pot'- Speeiification of Letters Patent. i

for ordinary purposes. 4 represents a face of this jaivgthe, .length and. breadthA of. this. portion being "such a's'to' coincide .ATTACHMENT-FOR MONKEYLWRCHES. l

, Patented Mar. Ii, 1913;

tion, as at 6, which is adapted'to tit the tapered outer end,7 of the jaw 3.

At one side of the base or innerend of l. y

the part 4 is an extension 8 having a depth ing. Through vthe portion 4v of this supplemental jaw, extends a vshank l1 which may be screw-threaded onthe inside to tit the corresponding screw/threaded portion of the part 4. This shank has upon its outer end a thumb piece l2 by which it may be turned. l

The -device is readily applied to' the wrench as follows: The jaws being .sepa-- rated sutlicie'ntly 'for the purpose, the'part his attached to the shank and jaw of the y wrench. by slipping the projecting tongues (iV and 10 over thev tip'of the Jaw and the 'shank 9 respectively, and applying them so that' the open side of the .jaw 4 will pass over the shank 9; the thumb piece 12 standing substantially in line with the part 4 i while this application is being made. After 'the' supplemental jaw has been thus placed,

the thumb piece 12 is turned to engage with y ltheco'ntiguous side of the jaw 3; this shank being screwed in at the same time' so that a perfect'lock .is formed and the jaw is as solid as if a part of the main jaw. In this .way I am enabled'toefficiently apply a de- Avice to form a pipe wrench, and to readily 'remove it lwhen the wrench is desired for otherC purposes. l t

v These attachments are cheaply formed and may be applied to wrenches of any size of this class.'

Having -thusv describedy `my invention,

what I claimcand desire to Secure by Ilet-l ters .Patent is- A. 1

A ppewrench attachment for monkey vvvreniehes, consisting of a toothed jaw adapted to register with the inner face of the main jaw of the wrench, said toothed j w .having a forward extensionand a turnedover 'portion fitting the' tip of the main jaW ofthe wrench, a rear extension from one side of said toothed jaw adapted to lie adjan testimony whereof I have hereunto set cent the side of the shank of the monkey my hand n-thepresence oftwo subscribing Wrench, a projecting toe upon said rear exwltnesses.

tension, and a, thumb piece carried by said Y WILLAM ESTERBERG. 5 toothed4 jaw and adapted to engage the main Wtnesseszjaw of said monkey Wrench to hold said at FRANCIS CUTTING,

catchment in place. L. MILTON CUTTING.

Copies ni' this patent may be obtained for ve cents each, by addresing the Commissioner of Patents,

Y Washington, D. C.

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