US1445280A - Wrench - Google Patents

Description

Feb. 13, 1923.

J. JORDAN WRENCH Filed NOV. 16, 1921 Patented Feb. 13, 1923.

JAMES JORDAN, OF LOWELL, IIASSACHUSETTS.

WRENCH.

Application filed November 16, 1921. Serial No. 515,667.

To all whom it may conce n:

Be itknown that I, JAMES JORDAN, a subject of the King of Great Britain, and a resident of Lowell, in the county oflitliddle 5 sex andCominonwealth of Massachusetts, and. whose post-ofiiceaddressis #228 llloody St, have invented certain new and useful Improvements in lVrenches, off which the following is a specification.

This invention relates to a wrench which, while capable of use as a monkey wrench, is particularly adapted for use as a. pipe wrench, or in place of pliers.

An object ofthe invention is to produce a wrench of this class that partakes somewhat of the form of pliers and is of especial utility in connection with wagon body or automobile work, where oftentimes the nut or pipe to beoperated upon is located in 0 an almost inaccessible position which could not be reached by the ordinary wrench.

A further object of the invention is to produce a wrench the jaws of which may be adjusted to approximately the opening required, and preferably slightly more, for

the device to be operated upon, and there after one of the jaws may be moved toward the other ina positive manner to grip the device. i 1

Another object being to provide a wrench thatdoes not require jaw adjustment for each size pipe or nut. but which iscapable otoperating on several sizes for eacl'i adj net- I ment.

It is also an object of this invention to provide a wrench which is so arranged as to afford the greatest amount of aw closing leverage, and consequently power, when J large nuts or pipes are to be operated upon. I

It is a further object of this invention to so arrange the adjustment of the jaw closing leverage that if required thev greatest leverage and consequently power may be applied to the smallest or intermediate sized nuts or pipes, or jaw adjustment may be made, so that the device may be held from rotation betweenthe aws without crushing tendency being applied thereto.

It is anl object of the invention to provide a wrenchhaving the above characteristics, which is simple in construction, powerful in efi'ect, and as readily manipulated as pliers. To the attainment ofthe above objects the invention consists in certain novel features of construction and arrangement of parts which will be fully understood from a description of the drawings and the claims hereinafter given.

Of the drawings:

Figure 1 represents in side elevation the improved wrench as it would appear when about to be applied to a pipe or nut.

Figure 2 a View similar to Figure 1 but showing the wrench as applied to a pipe shown by dotted lines.

Figure 8 a section onthe line 3-3 Fig ure 1.

Figure 4: a section on the line 4-4; Figure 1.

Figure 5a vertical longitudinal section through a portion of the wrench as shown in Figure 1.

Like characters represent like parts throughout the several figures of the drawings.

Referring to the drawings:

The shank 10 has at one end thereof a jaw 11 and at the other end a hand grip 12. Adjacent the jaw 11 the shank is broached as at 13 to receive slidingly therein a link 14 adapted to be held relatively to the shank by means of the bolt like member 15'having the toothed end 16 adapted to engage teeth 17 of the link 14. The bolt 15 may be held in place by a plate 15 secured by a screw 15 to the shank 10, said plate being forked to straddle the link 14 and slotted as at 15 to allow movement of the finger piece 19. The said. bolt being normally held in eugagement with said link by means oi the spring 18 and. disengaged tl'ierei rom by means of the finger piece 19. At its upper end the link has a jaw 20 pivoted thereto at 21, said jaw having a tail like extension 22 with a slightly pointed end 23. The jaws 11 and 20 while shown as toothed and the gripping portion converging toward the case the adjustablelink 14: may be dispensed said jaws 11 and a pin is provided at thelower end of said linkso that it cannot be drawn through the slot 13. The aw closing means herein employed is one capable of exerting great power which may be in the direction of'arrow A Figure 1,

To retain the carragein a given pos ition and to causethe jaws to open upon release of handle 26 a spring 30 is interposedf between the carriage at 31. and a shoe 32 which is thereby held friction-ally against thetail 22causingpressure on the cam 27 which in turn is transmitted to the shank 10.

It will be readily seen that is thus held quite firn'ily but not immovably afs, 'if desired, it may he slid along the tail to occupy various positions such, for instance,'as illustrated by dotted lines Figure 1. v

When operating on'a nut or pipe of small diameter and itjisniecessary to'have the jaws come} close-together, the link 14; will first be adjusted to, approximately the right position and if necessary the carriage 28moved toward or from the pivot 21, and thereafter the handle 26 may be operated t6 grip the article. l v j If eX cessive power is required the initial adjustment of the link 14: will be made as before and the carriage 28moved away from [the pivot 21, thereby greatly increasing the leverage entail; 22 and consequently power at the jaw thereof. j j V j Increase or deer ass of jaw closing leverage, and consequently power may lbe obtained sliding the carriage away from or to wa-rd'the plv ot 21 and for use on larger nut-sand pipes it may be advisable or even necessary to sl de the carriage to the right to obtain the necessary jaw opening as well I: E as, the additional leverage thus obtained. It

will be understood that the wrench may be inade n various sizes f so desired in whlch H with andja support erected from the shank l0 to receive the pivot 21 nov has everbeen in. use, wherein the jaw closing It is not known" that a wrenclrof this class I devices wereshiftable to obtain variations of leverageuto,increase power or to cause wider opening of the jaws to receive larger objects and therefore it is not the intention i iaaaso to limit this invention to the precise construction and arrangement shown herein.

It is obvious that various changes-might be made in the construction and arrangement of the invention without departing from the spirit and scope thereof.

-Having described the invention 1 claim:

1. In a wrench of the class described, a pair ofrelatively movable jaws; a pivot for one of said jaws; and jaw actuating means comprising a pivoted handgrip lever moi' able longitudinally of said jaws "toward and from said jaw pivot whereby theja'w closing leverage varies with the longitudinal posi 'tion of said lever, I a I 2. In a wrench ofjthe classjdescribedgja stationary jaw; a 'niovable'ja'w pii 'ot-ally mounted'thereon; means to adjustsaidja-ws whereby they maybe madej adaptable to large or small objectsja shiftablje earria e guided by said jaws means mounted on said carriage to forcibly. closesaid' jawsj' aiid means to normally retain said' jaws 'in open position; L I j 3. In a wrench of the class described, a stationary jaw; a movable jaw piv'ote'dthereon; means to bodily'adjiist sa'i djaw whereby they may'bemade adaptable to largeor small objects 5 means to lock said aws in lo'odily adjusted ecimen; a shiftajble carriage guidedby said jaws; 'means'mounted on said carriage to forcibly close said' and means to retain said carriage in shifted position. A j

L'In a wrench of; the classdescribed a stationary jaw; a movableljaw ivqta'lly mounted thereon a connection between said jawsup'on whieh's'aid movable jaw is pivoted; a locking means carried by said stationary jaw adapted to'co act with'said link whereby said movable jaw may bodily adjusted toward and froin stationary jaw and held inadjusted position; ashiftable carriage" giri ded by said jaws; and means mama on said carriage toffor'cibly close said jaws; y r, a W

In a wrench. of the class describetb a pair of relatively movable jaws; means to j bodily adjustsaid jawstowards and from each other and retain them inf adjustedposition; a shiftable carriage guidedi sa d jaws; a lever pivotally mounted on: said clarriage; a cam fast withsaid lever and means to retain v said carriage shifted position I 6. In a wrench of the elass describe d, a"

pair of relativelymovablejaws;- means to bodily adjust saidjaws toward and from g each other, and, retain them in adjusted position; a shiftable carriage guided by said jaws a lever pivotally mounted on saidjCarriageg a camf-fast with 'said leveij; and a spring coacting with said carriage adapted to retain said;v carriage in shifted position and causesaid aws to assume their normal open position.

7. In a Wrench of the class described, a stationary jaw; a movable jaw; a link connection between said jaws upon which said movable jaw is pivoted, said link being guided by said stationary jaw, and having teeth thereon; a locking member carried by said stationary jaw adapted to engage said

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