US1101381A - Wrench. - Google Patents

Description

A. T, ANDERSON. F. L. BAILEY & WQC. GUMMINGU.

WRENCH.

APPLICATION FILED APR. 23, 1913.

Patented June 23, 1914.

3D- srrnins PATE T oFFli Amos 1'. ANDERSON, mumps. 3mm, Aim WILLIAM c. commas, on omiomts,

onmoxs nssmncns 'ro A mEnscn-nAnsY-cnmmmss column, on ominens, owners, 4 communion.

To all whom it may eon-m.-

Be it known that we,

Conmmogcitizens of the United States, re siding at Okmulges, in the county of Okmulgee and Stzitcof Oklahoma, have invented certain new and useful Improvements in Wrenches, of which the following is a spec fication.

. the co-pendin application serial Number tenses, end ccmlcer 18th, 1912, of Anton T. Anderson. v

-The object of the present device is the provision oi: e wrench comprising an adjusteble heed lmonnted u on ehandle, with means 101' controlling t .e movement of said head whereby the latter may he held in a stationary position or upon initial move mont of e controlling member to permit fnee swinging movement'of the head and upon continuation of themovement ofsaid controlling member to limit the swing of the headoto one direction onl To this end our wrench is provided wit heed engaging stationary with which members a control-' members normally tending to hold the same ling lever cooperates in a manner which will be more clearly understood as this. description roceeiis. i

With the above and other objects in view, this invention consists injthe construction, combinationnnd arrangement of parts all as hereinafter more fully described, claimed and illustrated in the accompanying drawin s, whereinhead engaging members to permit ratchet movement of the. headon its pivot in either direction. Fig. 5 is a fragment r'y view showing more clearly the intcrme iete position assumed by the pawls under action of the controlling lever. Ihyou boot the following detail description,"eneon the several figures of the "draw- Annex T. Aspen: son, FRANK L. BAHIY, and WILLIAM C.

engage the 'atchet teeth 5, said end losing 2 most clearly, to groper} in similar parts are refuted to re erence characters.

Referring to the drawings one he nemesis! i I nedimticn or smart Patent. Patented J ne 23, M. Application filuf April 28, ms. Scglel In. 16%}126.

designates a handle which terminates at om.

end in a pair of spaced firms Q, Q, MM

which arms is pivotelly mounted a in! 3. The head 3 is of circular .iorm and sdcptcd to swing upon its-pivots 921W ecting inwaxdly from the arms Q m as to pi esentits jaws various positions whereby to mempulete'nnts or other constable ports disposed in dificultly occesoihle gresiti The peripheral pontion oft-he is pmhsod also vided with ratchet teeth 5 and soi consists ci e stationsry' jaw 6 wit which a movable jaw 7 is adapted to The movable joy ,7 is provided wit: a; shank 8 which is adapted to move in agoidcweyil under action of an actuating Worm 1Q rotetaloly mounted at recess 11. upon s shaft 19, sand shank 8 being provided on its inner edge with the cooperating worm teeth 13 meshing with said worm 1G. The means for controlling movement of this head 3 is-di's =d between the head'and the handle 1, an also between the arms 2, as clearly shown by reference to Figs. 2, 3 and 4 of the drawings.

Said means consists of a; pair of head on v gaging members or pawls lispaced apart so as 'to engage the ratchet teeth 5 of the head at opplnsite sides of the same. Each which is disposed between the opposite ends of the pew-ls in en epettored partition 15. This spring is ilonislly under compression for this purpose and the penis 14. are preferably formed with seats 16, shown in Pig:

in its relative positionof these pn'sfls 14 is pivotally moentecl in -5f 7 hold the spring och of the pawl's; fnrthormono formed on its outeredgecp' posits-the seats 1% with e recess 17; the and of the pawl terminating sdjoccnt'the' recess-- in a nib 18 extending substantially at a right" angle to the pawl. Adapted to cooperate. with the pawls 141 is acontrolling lever or latch 19 pivotslly mounted upon the pivot 20 adjacent tenminal nibs 18 of said I owls. -T'i1o controlling: loves terminates at lts ends in hoot: members 21 which m mally engagement of the awls M with the ratchet .15 against the inner endsof said -'When it is desired to permit free swinging teeth 5, by virtue o the tension. of Lthospring awls.

movement of the head to a convenient position for operating-"upon a nut the control- I ling leverlfl is moved slightl in'one direction on its irot so that one 0.. its hook mem-' here 21 wil contact with the lower end of the adjacent pawlto a suficient extent to bring the freeend of thispawl out of engagement wit, the teeth. The opposite hook member 21 o the lever 19 by this move .ment aforesaid has been caused to rideout of the recess 17 of the'opposing -pawl u on the'nib 18 of the latter'wherebv the set mentioned pawl will also be heldfrom enfgagement with the ratbhet teeth. .When the position of the'he'ad has been determined with res eat to thehandle continued move- :ment is lmparted to the controlling lever in the direction just given whereby the firstmentioned pawl is swung away from the head into a position shown most clearly in Fig. 3 and the opposin pawlis entirely-dis engaged b' the, contro ling lever ah the terminal hooli member leaves the nib of the samet. whereupon said opposin pawl engages the teeth 5 of the hea -Ratchet movement may thus be permitted in one.

- direction in an obvious manner, the inner face of the free end of each pawl being bev eled so as to permit free sliding actlon of its engaging face'. To ermit ratchet movement of the head in t e opposite direction. the lever pawl is moved in the reverse direction to that above described as will be clearly understood. by those skilled in the art to which this refers.

It will be apparent from the foregoing that this arrangement of the cobperating parts of the wrench 'is distinctly advantageous when it -is used to manipulate a nut in a place comparatively difiicult to permit offree access, because of the fact that it is not necessary to remove -the wrench head I from engagement after it has once been aplied to turn the nut in either direction. 1: is also particularly desirable that the wrench head be normally held stationary and susceptible-of control for use as a ratchet wrench as well as allowing the headto be fixedly positioned at various angles with respect to the handle when so desired.

With the foregoing in View it is obvious, referring to Fig; 3, that the initial'movement of the controlling lever 19 will operate the spaced pawlsso as to bring themvinto the dotted line positionshown in said figure and that the continued. movement of the old in a stationary position. by the.

"is claimed as new'is:

gaging the jaw head menses wrench to assume its former position while the pawl at the left is swung quite clear as shown in full lines, the pressure of the spring'lfi bein'g exerted against the pivot. of the last mentioned pawl whereby said lever: and pawl will retain their position until the action of the lever is reversed and thei'spring allowed to act against the lower en Having thus described the'invention, what 1. In a wrench, the combination with a handle and a jaw head pivoted thereto and having ratchet teeth, of spaced pawls adapted to cotiperate with the head, each of said pawls being pivotalllymounted between its ends and terminating in a nib, a controlling lever common to both 'pawls pivotally mounted intermediate itsends and'ter'minating in hook members, the hook'member at one end of said lever beingadapt'ed to enage enact the pawls to hold the free end isengaged from the-head on initial movement of said lever and the hook terminal at the other end of said lever being ada ted to engage the nib of the other oi: sai pawls to hold the free end of the latter from engaginent with the head,-the-last mentioned hook terminal of the lever being adapted to be. disengaged from the second mentioned pawl'iupon continuation of the movement of said controlling member, to permit ratchet movement of thehead, and a spring disposed inthe'handle and pressing against the o 'posite ends of: the. pawls to normally ho d the latter in engagement with the head, said- 2. In a wrench, the combination with a I handle terminating in spaced arms and a. jaw head pivotally mounted between said arms, said head having peripheral ratchet teeth, of a pair of pawls mounted between said arms'at opposite sides of the wrench, the free ends ofsaid paw'ls being adapted to engage with the ratchet teethat op osite sides of the jaw head aforsalid,'the si es of the pawls. at the ends opposite the-ends ening formed ,with nibs, a controlling lever pivotally mounted adjacent the. last mentioned ends of the pawls and terminating in hook members normally engaging aroundthe nibs whe'n'the pawls areengaged with the heads, one of said hook members being adapted'to ride on the nib of its adjacent awl to disengage the 1 tree end of'the latter 'rom the-ratchet teethv upon initial movement of the lever and to be disengaged from the nib-upon further movement of the lever to permit ratchetmovement of the jaw in one flirection, an apertured partition disposed between the spaced arms, and a sprin gated in the aperture 0f said partition an pressing against file ends of the pawls t0 normally hold the latter in engagement with the head, said spring being movable upon actuation of the pawis by the centralizing lever' whereby the pressure on one of said pawls is'exerted line with the 2M pivetsf the pawl to frictionally bind the the pawl

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