US1380052A - fowble - Google Patents

Description

0. H. FOWBLE.

WRENCH. APPLICATION FILED JUNE 21| |920.

Patented May 31, 1921..l

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Iitiien of the Unitedv States, residing at 'unt-in on,` inl he -v county of Cebelljend e'pf wrenc wherein the movablefmein fis provided with a shanli in guided con-V iehtion with and lmoviible in parallel rela tibii to. the handle bar or shank of the mein mountingt eA supplemental station 1 tennessee, eombinmon end segment ,bipertshereinafter fully described "and yiiiiijying ydrawings,jin which: i '-Eigii're 1 is an edV view lofii wrench c ontflcted in" *decor-dance with my invention. Fig. 2 is, a. side elevation of the seine.

Fig 3 isginl opposite edge view of the wrench from that shown inl ig. 1.

Fig. i4:4 isv e detail section` teken substantall online 4-4 of, Fig. 3.

Tiie wrenchV comprises e. handle bar or mein shank 1 upon which ismounted a. guide sleeve 2 in whih the threaded shank 3 of a movable' 'swf member 4 is slidably mounted. `Thet reads of the 'shank 3 are engaged by the threads of e; rotary nut 5 journeled-in e slotted p Vrtion 6 of the slevwheneby the moveb e 111W member 4 may be iid'iisted with relation the fixed jaw 7 of e handle bar or main shanlr 1.

The. working face of the movable pivvA members is suitebly im proper ei: :surface 9,

sind jewV proper 8 being provided with -a.,-lug or pioJection 10 to fit within-a recess .4 K /jewinember 4 "und"seeuredthereinby means ofa fastening il'lscrew or the like 12, whereby the jaw enit 8 is detakzheblymounted, allowing a .somme s'rATrs PATENT, OFFICE;-

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" Seeication ot Letters Patent, Patlified 4li/[ay 31,1921. pentium .ined nine 21, iseof serial inT 390,403. l

,enda new one conveniently rioroitheinterior thereof, and one obfis may! been plied for efficientl use on a.

i5 if shoulder 18'is1arriinged in Vsi'linement witlim 'extends inwardly ofthe forward or guiding? inwerd movement thereof. The ripper 13V formed -to receive s. A toothed or serrated broken or worn j'aw element to' e removed substituted in itsliiee.. A lhe jaw element issrranged for coperation with a gripper 'or jew-V element 13 60 carried byfthe fixed jaw member 7.V This jewv elementil liaise working face inclined at enen .le to thepl'ane of thetootlied sur. face 9 o the jew Velement 8` and provided with serrtions or teeth 14 extending in 'one 65 direction, said toothed surface-14 being -arranged for eo` eration withthe toothed surface of the, ]aw member 8 vfor exteriorly gripping pipes or other objects.. l

yThe .gripper or jaw Velement 13 is fitted y70 to slide in a direction toward end from the shank member ,3.in aguidewey 15" formed by cutting Vsway a. portion fof the jew meinber 7, said-guidewey,beingcompleted by the forwardly extending portions oieside plates A 16 formed integrally with the sides of the4 sleevei'and extending on opposite sides" of the bar orfshiink 1 and rivetedl orotherw'ise' secured thereto, `aus indicated et V17. By this: construction the sleeveQ is .mounted iii,po8..0 sition uponthe shrink 1 sind the'sides of the guidewey 1'5. simultaneously. formed.4

VThe jew.; member 7 is provided at one end of theguideway lwith a lug 18 forming a stop shoulder to limit the inward move 85. ment ol thei'gripper 13, which lug `or n. shoulder 19 on said gripper, The `lug edges of the guide plates 16 and is formed 90 with a socket or recess 20 receiving one end of a4 coiled spring 21, bearing at its o posite end ageinst'the shoulder 19 and ten ing to hold the gripper 13 at the limit of its outwerd movement while permitting yielding is provided withn an' elongate slot 22 throngh'whieh passes a pin 23 extendingV across the guidewey 15 between the ide plates-16, and whereby the bodiy 'o the 100 gripper is guided in its inward en outwardA sliding movements. The toothed surface of the gripper 13 is desirably prolonged by the revision oe lug or extension 24 at the inner end thereof, said lug lying outside of 106 seid shoulder and beintgmovable in contant i with the outer face o the lug 18 and bei tween the `adjacent@portions ef ythe guide plates 16, whereby a furtliei` guiding connection is provided to insure movement of 110 l the gripper 13 in a direct line and without pivotal action on the pin 23 liable to cause a defective or insecure gripping engagement between the gripper and the object to be grasped between the same and the toothed surface of theY jaw element 8. By the construction described it will be seen that the spx-in 21 is concealedand housed and protecte 4from the access of dust and dirt and from liability of injury; and is also dis- 'posed at a point where itdoes not interfere with the full and free-admission of the object to be lgripped between the stationary 4 and movable jaws.

The sleeve 2cal'ries upon its crown por-l tionv a semicircular stationary grip 25 for coperation with a jmovable gripper 26 piv- 'otallymounted upon a pin or stud 27 carried by the jaw member .4, said gripper-s 25 and 26 being adjustable with `relation to each otherin an obvious manner. These grippers 25 and 26, are adapted for engagement withthe interior of a ipe -or other tubular object, andzeach of said grippersis provided upon opposite sides ofthe center l of its curved face with sets of teeth 28 and 29 projecting in opposite directions, so as .to adapt the grippers for a ripping action in either direction of pivote? movement of the wrench. The gripper 25 may be fixed in any suitable manner to the sleeve 2, but the gripperA 26 is ivotallymounted `upon the pinor stud 2 so as to have-lan eccentric gripping action when the wrench is ivotvally adjusted or revolved in one direction or the other, whereby the'pipe, tube or similar'l objectmay be rmly' gri ped and revolved ermit it to be screwe or unscrewed, as wil be readily understood. .The construction described enables' a wrench of thewtype disclosed to be manufactured in Aa simple manner and provided with :jaws or grippers to engage either the exterior or interior of a pipe or other object a) be' held 'or rotated.

A Eromthe foregping description, taken in yconnection with t ments 8 and 13 so that newrgrippers ma Y ones, and 1n whic be substituted for ol and convenient the gri per' 13 is effectually guided anfdits` control ing sp ing securely housed andVpro# tected from'lniur Havin thus fil tion, I c aim: Y

llyV described the. inveni i A wrench comprising a handle, 'baron main shank havingfan obliV ue end portion forming a ide surface an provided with a socketed .4 ugfprojecting beyond the line of said guide sur et ace at the inner end thereof,

a sleeve having side plates secured to the j handle bar withdportiops projecting at o site sides beyon y saidvguide surface an and forming therewith a guideway of somewhat greater de th than said lug, a movable jaw havingA a s ank slidable in the. sleeve, means for adjusting the same, arfsupplemental jaw slidably mounted in thelguldewa able between the side plates outer side of the lug, and a coiled spring at oneend in the cketoi' '9A l. bearing atitsopposi-` end a.

ner end of the supplemental jaw? mal1y` force saidjaw outward.

at its inner end `a 1e uced extensmn mov-i and in guided vconnectionwith'saii/fl'li guide surface and side lates, said jaw hav` In testimony whereof I aiix V1re? oscar R. rowrinif-l"

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