US1037109A - Pipe-wrench. - Google Patents

Description

W. L. BESSOLO.

7 PIPE WRENGH.

APPLICATION FILED M Y 14, 1912.

1,037, 109, Patented Aug. 27, 1912.

ATTORNEYS A nN oFmo-n.

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specificaztioniqfi-iletters Patient. 1; np ncitioimeqn -51451912:-' seriel lie-seized.

in the an. Improvement Pipe-Wrenchesmfwhicli the following'is'a specification.

which, thehandle proper is hinged to the shank of "the fixed jaw, a ratchetdevice being applied at 4 the joint to [oprativelyconnect the handle. and. movable jaw and" cause the jaws-to open more widely or gripan object more firmly, aceordingas. the handie ,is pushed "or; pulled in one. direction or the other. In this case,'the invention is em- .bodied in the construction and combination .of a ratchet and pawl operatively connecting the handle and movable jaw as hereinattei" I described-f.

In the a'ccompaiiyingg"v drawing, Figure is a side nviewof the wrench showing the it handle inclined at, aslight angle to" the shank of the fixe'djaw, whereby the-jaws: are opened to their'wldes 't extent." .Fig. 2'

is a sideview showing the handle adjusted at the opposite -angle,'whereby the jaws are gripped- 'upon an object to -which they-are F 301 i --is a perspe'tive view of the hoo'k pawL- The numeral 1. indicates the fixed jaw,

applied. Fig." 3 jean-edge view: ,;Fig'.: 4.

" and 2, its shank, tQ".WhiCh Jth handle'3 is connected; by; agrule-joint &, .the engaging The, handle 3 has a shoulders of therespective parts" permitting the handle to be .inoved a short distance, so I thatit maybeyplaced at'difierent angles to. the'shankI2-,- .asflllustrated by Figs. 1 and 21,- The movable jaw-5 has ashoi't'shank which terminates in a 'segm' ntal head 6 provided with ratchet teeth.

portion .3 which is'provided with a slotin 'which the hook .pawl 7 is pivoted at. 8; .The

pawlengagesthe ratchet has shown, and

Lis provided with a heel or short'lever arm :7? that .projectslaterally from the handle.

'. extension 3. 1

A late sprin'g -10,' -indi'cateclby dotted" lines in F igs. land 2 end byfull lines. in Fig. ,j3",j,is secured to-the .handle in the slot. and the free end of said.-

of the. extension 3'; spring bears against the. body of the'pawi so as to hold it normally engaged with the ratchet,-segment-6.. f

It will now be? apparent that, when' it it county "Of San.

"forwardly ext-nee the jaws are opened withth ratchet. Then, when the'jawshave handle 3 in the ithearro'w in Fig. 1- will throw the handle in which operation the movable jawis shifted ,to" which the. wrench isapplied. In other Words, when-thehandle is operated .asde 'fSCIIb Bd," the-"coaction'of the pawl, ratch'etg. and a movable jaw causes -the jaws to' ap- Nproach each other neare nzan'd thereby;

that'the rule-joint permits the-reqniredjaw-{and thatwhen 'ressu1 'e-jisI-"applied to the handle in the irectioii ,-1 of -th'e arrow (Figfi1),.the-shouldets of. the r'espec- "t-Ivep arts 2 and 3 are brought into-engage ment, as shown in Fig.2, sothat the handle then constltlitespractic'ally 'aZTigid extension totthesharik.

,V j ofthe movable jaw," it, may ibe'cloised upon over the. nose of the.

adjust the movable jaw uponan 'dbjeotfor to the fee or projecting arm ,3 ofthe pawl; so as-to p'ress it'in the direction of the arrow in ,Fig. '2; thereby releasing *gagement with thejaw. h

matl ciaimis'f-wl I H 71. The improvedpipe -wrench,-eomp1 ising and 'a-fpawl pivoted to .the forward end of segment, as described, v

i 2. The improved-pipe wrench, comprising fixed. jaw and integralt shank, ahandle [having 9. rule-joint connection with. the 4 shank.con'str'llctedv in thelforn'i of a segment" .pr'ovided with ratchetteth', 'a hook pawl with-.the' ratohet, as shown and described.

Patented Aug. 2'7, 1-912 .soas to clo'semore tightlyuja onthe object.

. p the ob ect more firmly '.It w1'l1.'-be"seen I swing of; the handleonthe'.shank ;of the .-pivoted to the f Q Wt lfd el ld of the handle-'5? and a springattached to the handleiand' pressing the pawl normally into engagement othrteylindrical object, thehandle is ad? angle shown in Fig; 1, hy'which toithe Widest eXtei1t rm1tted by the engagementof thef pawl be'enapplied to an obgiect, a-push or pull. on

irection indieat'ed'- by T 1 nto the opposlte angle lndlcated 1n'F1g.'2,..

an objeet-, ,tlie rat'chet in .slich pase sliding I pawl; Or in'prder to openit widely, pressure may be, applied. to

affixedjaw and its shank,a' haiidle hinged to 3 l 'the ashanln-a mdvable .jaw'jpivoted tov the fixed one and having its rear end construeted M in segmental form and provided with teeth,

Qthe handle and adapted to engage the toothed shank and a pivotedimj mble jaw having its" 3. The improved wrench, comprising a fixed jaw and shank integral therewith and provided with a lengthwise slot, a movable jaw pivoted in said slot and the free end of its shank constructed in segmental form and provided with ratchet teeth, a handle pivoted to the shank of the fixed jaw, the two being constructed to form a rule-joint,

a hooked pawl pivoted to the forward end of theehandle and provided with a short lever arm projecting laterally, a spring attached to the handle and bearing against the hook end of the pawl and tending to hold it engaged with the ratchet, as shown and described.

4-. The improved pipe wrench, comprising a fixed jaw and shank, a movable jaw pivoted thereto and having its rear end con structed in segmental form and provided with ratchet teeth, a handle pivoted to the shank in alinement therewith and both provided with shoulders adapted to engage when the wrench is operated-and a spring-pressed pawl'pivoted to the handle and engaging the ratchet, as shown and described.

WILLIAM LOUIS BESSOLO.

Copies of th'ispatent may be obtained for five cents each, by addressing the Commissioner of Patents,

. Washington, 1!. C.

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