US1468771A - Jack handle - Google Patents

Description

Sept 25, 1923.

E. E. ARNOLD JACK HANDLE Filed Dec. 8, 1922 2 Sheets-Sheet 2 /NVENTOR MMMVQW.

Patented Sept.V 25, 1923. -V

l T E S EDWIN Ynllsnivomi), forrrrasnunen-Pnnnsynvenm, Assiette-n 'frio nnnsrafannrnc- Y.

.TURING COMPANY, or PITTSBURGH, PENNSYLVANIA., n coaronafrron or rnnni .JACK HANDLE.

Application filedl December 8, 1922. Serial No; $5,521..' Y

To aZZwwm-z't may concern:

Be it known that I, EDWIN E. ARNOLD,

` a citizen of the United States, and a resi- 4handles which have a universal joint in Vtheir make-up knows that it is practically im ossible.

universal joint is necessary in order that the jack may be` manipulated (to raise and lower the load) from a standing position. i j An object of this inventionis to produce a jack handle which has the necessary Cardan or universal oint in its'make-up but which may be rendered suiliciently rigid to compel the jack when Vpushed by the handle to trav- Y erse a substantially straight line.

A further objectv is to produce a jack handle having a Cardan joint in its lmakeup which may b e manipulated soY as to be locked against pivotal movement about one of the joint pivots. Y

A further-object is to produce -a simple, relatively cheap and rugged jack handle which may be easily shifted or changed from a universal movement hand-le into a semi-rigid handle -or one having pivotal movement about one pivot only.

A stillfurthe'r object isto produce a.V

Cardan joint for use in jack-handlesjin which Aoneof the pivots of said joint may be easily locked against pivotal movement and as easily released by movement of the jack handle toward and from ,the jack.

These, as well as other objects which will readily appear to those skilled in this particular art I attainV by means of the device f described in the specification and illustrated in the drawings accompanying and Vforming part of this application.

In the drawings'Figure ll is a view in elevation of a jack with a handle embodying thisV invention attached thereto. In this View the Cardanjoint entering into the make-up of the jack handle is shown'extended kfor universal movement. vvvFig.v .2 1s

a longitudinal sectional view ofv alportion ofthe handle, `a portion of :the yrotatable j ackshatt, the'socket member and the link connecting the handle and socket ,mengibers and VVforming the Cardan or universal oint.

In this view the joint isishown extended for Y universal Vmovement as inwFig.y l. Fig. 3 1s a plan view of the parts `shown inF ig. 2,

but inv collapsed positionfi'n which the handle member and link .ofthe Cardan joint .Y are locked against relative pivotal move-V ment. Fig. 4 is a view .similar .to Fig. 2 of a modified form of device. this view the parts are shown in locked Yposition so' that there is pivotal movement only vabout-one axis of the Cardan joint. .Fig 5 'is aiview similar to Fig. fbutrof .themoditied `formV 'y of device shown in Figli, :and this View` the parts are shown extended so. as to have pivotal movement about bothv axes of the universal joint. V,Figs and? are plan and' longitudinal sectional .views respectively kof i a still furthermodiiied form oldevice. In

Fig. 6 the device is .shown collapsed to.

locked position and in vthis -'orm .whenfthe'VV joint is' collapsed itis'rendered rigid and-k without pivotal movement about either .axis j f lof theuniversal joint.: s In Fig/Z the joint is shown extended for universal,V movement about both pivot'vaXes.` Fig. 8 is a .view in section taken on line 8-8 jof Fig. 7 looking i in the direction of the arrows.

In allf threeV forms of device, a socket member formed for attachment to the ro-V tatable shaft of the jack is utilized. l

A link is connected to the socket member by Vmeans of a lpivot Vpin and vto this link a rhandle member (the vhandleproper) is connected by means of ,another vpivot pin. The axes of these pivot pinsare vdisposed at so g right angles to 'other' and .the aX-is of the pivot pin connecting the link .to the socket member `is disposed at right angles to.

the axis ofthe rotatablesharftof the jack.

The three parts Y(-the-handleproper, the

socket member andthe link) A'form a'Cardan p joint. Y Y Y VIn allthree forms of thedevice the socket member is preferably formed as shown in Patent No. 1,404,260 issued to the Iron Cityv Products Company onlJanuary 24, 1922.

The forni oi' novo in Fig, 5 it is 'lise to b2 moocl i, 2, and 31s :the pr erre( :olli pivots. f Y i i *we first o 'foi'in" slioWnainf-digs. ilo

ing' 1G- is provided with tief 1212's il K .in 'tliioiioi'ni Y ,sool1 niomliorj' is'` i oeil nifl box-lili@ por-V posed at 'i'Lo the axis ofv 5;" i bei onoa Vblio'i l0. Handle li llas mmol' o iii when tho lzli'ui'cntod and botwoon die @sii-o r3-l5 1 i@ Slicl ionginoinnlly of the 'oimocl, inlz l2 if;- pifoa by ii onf; i it will lie "nl f inV this forni of fgio pin 16 having it@ :i i* in! ovoncnt is'pioieiitocl right angles to the used position,

l1; l2 :il tlio cantor 'Vifld with vlin1 d the lizincllo in lioio or nol projection 20, pocket oo-opeaiin 'When 'ho linl' cupy the poSiion s i ilio Cai-clan joini` is universal movonien, on monibei" is slirl longituclii'iall: o link lr; i

i'jho position Shown in in irv'ii 3;, pi'ojecion 2O lies Within pociig'i 2i ih; dan joint is iondoiofl soinii=igi or -@instV pivotal movement about ypixY oollgocl nig/#ainsi pivotal "onto Said link.- ;o accom-ing to Claim l in Socket Jifilios' by Qififooliminig-ilieii ,Y angles `to oioliotliei. nro cooicling to olafin. i in andthe member with which niiveiylslidzible ai@ Apmi*f iilof Wili ,l ing locking1 moans,

triietuic according 'io Yolfiin e lian lle mambo? and tile info iitec 'for relativo longit'iioinal mov@ ln oi'fiei o Qiisli clio jack into pofiion iii* of lioliandle, lili@ @milan f 3 collapsed 'by sliding tho l indio n longitudinally of Lilo link no Y B i aiiining the linlfun'ilg- 13 is loizontal., liojnclz 'v l :f 'T n if imun fd im.L www.

A 11% nf Q. D ui Jil-.CLL lah( (y QOCAL/u HKLM; VL? L tion Shown n y anillo nieinoci, lnk @om ,oilri'o sind operated from ding position handle and sociot-fineiniios by pivots and Constructed for 'ol'ativo lon; iiti,i linoil moi/'LL ment with relation 'to oney oi; VSaid meinbois for allowing the univers-:il joini'l loi'mod Lo be longi ndinnlly extended anclfcollapsoil nis-fons for locking lio members ooni for relative longitudinal nioif'oinent :igoins relative iii .'otal movomont vhen'tho wenn il LC.

1r on is,

in this pf; siioon lo C iV elonafjato when the -Carflan' joint in tliiSV "oi'ii on? siibscilzod vmy name ythis lsz'd'ay of Decenidoifioe is toloqooped, as Shown in it bei', 1922. f- Y loclofl ngziino' pivotal movement abo it pivo pin 16a by 1100622, biitivlien oxtencloclns f EDV/'lli iY link i2 is pioficleil i 'git 1 i ci ico i 'afloiol'ji/y is not as fom slot 1'( o suoli i- 3 onlin: o? Lilie' otlieioi'ms is it` i io nave time Manilla: meini wiiii of tno gael: shaft mposai blo toV

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