US1464939A - Wire puller - Google Patents

Description

Aug. 14, 1923. A1,464,939

J. R. KEARNEY WIRE FULLER Filed Aug. 8. 1922 Patented Aug. V14, 1923.4

@UNSLAJTES "Pe-TENT;OFFICE;

l taeter@ @Texans RQ KEARNEY, or Kansas crrY, MrssoURI.' Y .Y i

Winn runnnnf` A j .application inea .Aagust'e, 1922; serial N. v5,so,51o."fVVA To, allicuhom t may concern.'

Be it known that I,`JAMns R.: VlinnnNnfif,`

' a Vcitizen fof the United States, residingjat Kansas City, county 'of Jacksomand `State 1 ot YlVlissouri, have invented a certain new Vand usefullmprovement 'in l/Vire Fullers, of `v` iwhichi'the t'olhwing is a full, clear', and eX- actpdescriptiom suchasV will enableothers "skilledin the artV to which it "aj pertaii 1s to make; and use thesame, reference being had A to .the accompanying drawings, forming part Y of this application;

such as are generally used by linemen, al-

though `its use is not solimited as it may be j usedby any oneV who hasoccasion to exert a pull on V:1l-rope',wire, cable, or the like. In

@wire pullers of this' type, thef wireis engaged between twoparallel jaws which resemble theY opposing `.faces of: a parallel ruler,

the twoV jaws Abeing joivotally connected ton" each other-onV one Iside.

` Qne object of my invention isto provide a more equal distributionv of thestrains on the pivoting connections ofthe jaws by provding a `double shear connection or the same. This construction will alsoprevent accidentalrelease of the wire by the jaws due to movement V'of :the wire vtransversely of itslengtli.v Y

I i order that the the wirejtransversely of thelength of the latter, as is necessary where'the wire is engaged at; a point remote from its end,l desireto-make the jaw connections on one side movable away from` the space between Vthe jaws," and aA further frobj ect of my .invention isl to adapt these, connections to be moved into and .out of engagement with one ofthe jaws sol as to clear the space-between the ijaws. The practicalattainment of this object4 must be by means'which can beoperated with one hand, as also-must the Agripceiv'e a cable between them. l

Figure 2 isa similar view but `showing, the

ping. and releasing of the wireirrespect-ive of the presence of the auxiliary-connections referred to. 'f f .Y i

In` the accompanying drawings, which illustrate a selectedembodiment of my inV` vention. j l l l ,l

Figure 1 1s a side viewof my device showing the parts ofthesame in position to reparts moved into cablegclamping p iosition.-` l

Figure Sis afragmentarytopview ofthe operating handle. Y

jaws be applied to Figure 4 is a fragmentary side view taken4 on an enlarged scaleV and loolringin` the opL posite direction from Figures 1 and 2.

Figure 5 is a vertical section on line 5f`-5` connections lG'to a link 7, The connection j l Y l A between levers 3 and 4 and upper jaw 2vis My invention relates to wire pulling devices a combined pivotal andV sliding connection providedby the arcuate slotting of levers 3 and 4 to receive the jaw 4pivots 8 and 9.

PivotsS and 9 have the portion of their periphery aligned with levers Sand 4 toothedA to mesh with the corresponding toothed portions 1() of the levers. The toothed portion 10'of the levers does not extend the 'ull length of the'slots but terminates far enough from the ends so thatl the levermay rotate on The studs 3 and 9 extendthrough jaws l and 2 and on the side of the latter oppositetomembers 3 and 4 arms 11 and 12 are-rigidly 'secured to .thevstud to a limited degree at the end of the slot without further travel.

Athest-uds and are rotatable by the latter l from' the position shownin Figure 1 to that shown in Figure 2, or vice versa.

rlhe ordinary studs pivotallyconnecting the lower jaws of the levers also extend throughl the lower jaw, and on the opposite side thereof, form shouldered pins 13 adapted to receive the notched ends 14 of aws 11 and 12, when the latter are rotated to the positionl shown in Figure 2.

To provide the relative sliding movement between levers 3 and 4 and upper jaw 2 necessary to rotate studs 8 and 9is the func-tion of an element '15 and handle 16. The latter `is slidingly and pivotally mounted upon up- `per jaw 2 and is'pivotally connected to linkV 7 by element 15. yA-single pin 17 through element 15 is adapted to engage a corresponding proj ection20 on lever 4 and push the latter from the position shown in Figure 'Y2 tovthat shown in Figure 1.

When 'ai wire or cable is inserted between the j aws transversely of its length as may easily be done when the parts are in the position shown inFigur'e 1, one hand can easily grasp the handle 16 and by pressing the thumb against the end ofupper jaw 2, the parts are shifted to the wireclamping` shown in Figure 2 and in which studs 8 Yand 9Ahave been rotated to` ytheopposite endyo' vthe lever slots, their rotation also rotating arms ll and 12 toy the position in which they VVengage studs on lower jaw l, Any pull now exerted'upon handle 1G tightens thp` gripvot .the jaws on the vwire as such: pull is alongvmember 15, link 7, 'and on the upper ends'oflevers Sland l tending to turn theV latter 0n pivots and 9 so as to bring lower jaw l still closer to upper jaw 2.7 To release the jaws, handle 16 is turned downwardly 'upon its pivot 17y and pressure applied in adireetion opposite to that olf-the pull which will first turn levers and Il upon studs 8 and?) untilv lug 19 engages projection otally connecting `the extendingportions Various modifications in the details o'lf my invention may be made without departing` from the spirit thereof as expressed in the Vvappended claims. 1

L claim Y l, In a wire puller, parallel gripping` jaws, a lever` onone' side of said jaws per-` manently pivoted to each'oij said jaws, anda lever on the other side of said jaws permanently pivoted to one of said 'jaws and adapted to pivotally engage the other oi said` jaws or to be disengaged therefrom automatically when said jaws `are closed or unclosed` respectively,

2. In a wireV puller, parallel gripping jaws, levers on one side ofsaid jaws pivoted to each Vof said jaws, a handle connected to said levers, arms on the other side ot said jawsfpivoted to one or said jaws,'studs 'on the other of said jawagand' means `for turning said arms into eng-agement withsai il studs operated automatically upon rel ati ve movement ofsaid handle` and one oi" said jaws.

3. In awire puller, a flower jaw, a parkallelnpper jaw, la handle slidably mounted on said upperjaw,v parallel levers pivotl ally connected tosaidlower jaw, Vslidably and pivotally connected to saidiipper jaw, and extending beyond the latter, a link pivof said levers, a member.. pivotally connecting said link and said handle, and wire en#V gagging' elements operablejby sliding move- 05 parallel levers pivoted at their lowerV ends on said studs on saidlower Vjaw, a 7 0 link pivotedto "said levers at their'V upper ends, each of said levers` havinga` toothed arcuate slot intermediate itsends fineshing with teeth formed on said studsV on saidv np- Jer "aw and a handle securedto ,saidflinln '75 J v u l i In a wire puller, upper'andzlower parallel jaws, studs on each oi. said jaw's, those on theupperjaw being` rotatable,parallelf le?" vers pi voted at their 'lower ends on sai'dstuds on said loweirjaw, a link vpivotedvto saidle- I 30 vers at their upper ends, eachoifsaidf levers havinga tootlied'arcuate slotfintermediate its end smeshiin;l withtee'th formed ons vifdV studs on said v upper jaw, arms rigidly formed ,on the toothed studs on. said upperl jaw` and notched'toV engage the st udson lowerjaw when the toothed studs Varero`-A itated, a handle sli-diable on said upper jaw, Vandan element connecting` said handle andpw said lin-k. Y i Y n Y 6. In a wire puller, parallel jaws, a lever located one side of said' jawsfpivoted td; one jaw, and slidably pivoted,tothefother jaw, an arm located on theother side lof said jaws andadapted to lierparalleltherewith or to span the space between said gearing` between saidfleveruand said` arm whereby slidable movement voit said lever on n one ofsaid jaws rotates said. armltroin one of its described positionsto the' otherfn 7.In a wire puller, parallel'rjaws, a lever located at one side of said` jawspivotefil to one aw and slidaloly pivoted te the lother jaw, an arm located onthe other sidemoi'ifv said aws and adapted to lie parallel ther with orto span thespace betweensaid jan an operating' handle slidable on vthe lattermentioned jaw, an element pivotally coniY neet-ing said lever and handle and adapterl to engage and move said lever along. said.l

jaw as said handle isslidin one rlirection on said j aw, and gearing between said`lever} and said arm whereby suchmovement of;

said lever rotates said arm lfrom one its`11 lever on the other; sideof said jaws perina- 12 nent-ly pivoted toV one of said jaws. ani

adapted to pivotally. engage the other of" hen said j awsfare said jaws automatically closed. i.

In testimony whereof; Ilhereunto alii.

signature this 24th. Yday :oitV Jiily i922@ l JAMnsnKnaavnYg loo fue

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