US1161099A - Jack. - Google Patents

Description

LE ROY WILLOUR.

JACK.

1,1 61,099, I l Patented Nov. 23, 1915.

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JACK.

APPLlcArxoN FILED 1AN.1.6. 1915,

1,1619099. l Patented Nov. 23, 1915.

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LE ROY WILLOUR,"OF .ASHLAN-ID,Y OHIO.

` JACK.

Specification of Letters Patent.

Fatented Nov.'23,1915.

Application filed January 16, 1915. Serial No. 2,705.

To @Zlio/tom t may concern:

Be it known that l, Ln ROY VILLOUR, a citizen of the United States, residing at Ashland, in the county of Ashland and State of Ohio, have invented certain new and useful Improvements in Jacks, of which the following is a specification.

My invention relates to improvements in lifting ja ks, which have become known to the trade as tire savers.

An important object of the invention is to provide a liftingjack of the above mentioned character, which 1s strong, and 'has the operating parts thereof assembled in a compact manner.

A further object of the invention is to provide a lifting jack :of the above mentionedl character, having means whereby the' lift-V bar may be manually adjusted into engagementwith the load, prior to the same being mechanically raised.

A further object of the invention is to pro` vide novel andvsimple means to effect the "longitudinal movement of the lift-bar `or lift-member. f

A further objectfof the invention is to provide novel and simple means for permanently retainingthe parts of thejack assembled. i f

@ther objects and advantages ofk thepinvention will be apparentduring the course of the following description. y

ln the accompanying drawings forming ka part of this specification yandin which like numerals are employed to designate like parts throughout the same, Figure 1 is a side elevation of a llifting jackembodying my inventiomgFig. 2 is a longitudinal sectional view taken on line3-2 nates a preferably hollow standard, secured upon a base or foot k11. y

Formed upon' one edge of the standard 10, preferably adjacent the upper end thereof, is

of Fig. 1,y Fig. 3 is an edge elevation of the ]a`Ck,=F1g.

a lateral upstanding bracket or arm 1Q, provided at its vupper end with an apertured head 13, more clearly shown in Figs. 3.

and 8. y

The numeral 1e designates an operating lever having its upper end forked, asinore.

clearly shown yinV Fig. `3, providing spaced arms `15, which straddle the head 18, and are pivoted thereto by means of a transverse pin 16 or the like. The arms 15 extend npwardly beyond the pivot 16 for a substantial distance and are provided with laterally er;- tending shifting members 17, shown ymore clearly in Fig. 4s. rEhe shifting members preferably embody trunnions or studs 18, rigidly secured to the arms 153, with rollers orwheels 19thereon. `While l prefe" to mountthese rollers upon the studs 18, it is to be understood that the invention is not re` stricted to the same, as some degree of suc cess may be obtained without them.

Having slidable engagement with the up-` per portion'of the standard 1.0 is a liftmember or casing 20,' which is preferably hollow to receive the standard. This lift-member is provided preferably near its upper end with outwardly bulgingl transverse pockets 21, which are preferably vertically inclined and afford preferably vertically inclined transverse tracks or franges preferably arranged upon the interior of the liftmem ber or casing. The rollers 19 included in the shifting members operate within the pockets 21 and engage the tracks or flanges 22, and when `the lift-member is in the upper position and the operating handle 1e in the lower position, the rollers 19 enter prefer-y ably curved recesses 23, at the rear ends of the tracks 22, whereby these parts are locked in the active position so that they cannot be disturbed by pressure tending to move the lift-member or casing 20 downwardly.

more clearly kshown in Fig. 7, and is provided with inwardly extending guide lags 24C, slidably engaging with the standard `10, but clearing the arm or bracket l2. rEhe rear edges of the. liftanember or casing 20,'

at thetop thereof,"are connected by a trans verse strip orfmember 25,` forming a preferably' rectangular opening 26. The lift-mem` ber or casing 2O is provided at its top and upon the forward portion thereof with a tooth or teeth 27, shown more clearly in yli'gsf@ and A7, and rearwardly of the tooth The f lift-member has its rear side formed onen, as

orteetli 27 with transversely spaced teeth 2S, i

arrangedpreferably near the central portion of the opening 26, these'teeth being of course Y, preferably cast integral with the', lift-mem- Vber or casing.

The numeral 279 designates a lift-bar 'prof vided at its upper end'with ay suitable heady '30. This Vlift-bar is Vpreferably provided upon its opposite sidesv withlongitudi-nal grooves or channels 31, receiving the teethr 28 therein. At tsforward edge, the lift-barv 29g/is provided with a set of teeth 32., to ens p 'n gagewith the tooth: or teeth 27 and nearfits opposite longitudinal edge andwithinj the channels 8l with sets ofteetli',v to.y engage with the teethV 28. It isthus seen that three sets of teeth carriedV by thel'ift-bar simulta- Y neously engagefwith-the teeth 27 and 28for securing the lift-bar 29,130 the liftfineinberf or casing 20, and thatrthe lift-barl may be readily manually Vlongitudinallgyv adjusted up or down,l with respect to Vthelift-member or Y casing, and lockedv thereto in adjustmentat thereof.

` a desired vertical position.' The longitud-inal radjustment of the lift-bar. QQ-Vwith re spect.v to Vthe lift-member `or casi-ng is indef )endent of the longitudi'niaiV movement of the lift-member or casing Vbythe operating lever lt. Some degree ofk success may be obtained by dispensing with the liftbar,. in; which case they lift-member Vor casing 20, or

Y an'extension thereofv will engagev the load.^

The form of jack shown in Fig.y 8V, differs;

from the first form of the invention only in the construction and arrangement of the teeth carried hy the lift-membenor casing i and the lift-bar; s In FigsS, the lift-bar V29 is provided with only one ,set of teeth 34, upon the'forward longitudinaledge thereof, adapted to engage with a tooth 85,

formed upon the upper end of the lift-mem ber or casing 20, adjacent the forward edge rlhe teeth Si have preferably Y Vcurved lower recesses 36, and the tooth is- Vpreferably correspondingly rounded. This .when bent laterally a suiiicient distance to engage'with an inwardlyextending stop-lug 38, formed upon the inner surface of the side of the standard 10, but doesfnot engage with the inner surface of the standard 10,l to impede the movement of the lift-bar within its operative vlimits. VThe function of this .g itsV top with -a depending stopiinger 39,.

tongue and stop-lug is to retain the lift-bar Yand .standard permanently assembled. rlhe standardl 10 is provided preferably adjacentY Y f tapissier this paient may be .abenteuer nergens e'aetfbi addresses theCemmeeieea 1 Y Washingtoner@ maintaining the same upon the standard an'dnot interferingwith the proper longitudinal movement of the lift-bar. It is to be understood that the form of jack shown in e Fig,y S is alsoprovided with identical means for preventing the sepa-ration of the standard, lift-bar, and liftmember.

In; operation, the jack` isplaced .beneathv the load to befraised, andthe 'operatingy lever 14; is swung to the upper position to lower.V the lift-member or easing 20.. The lift-rhar' is now manuallyV elevatedl or adjusted f until the same engages with theloadhandof course is lo'clr'ed, to theVlift-meinher orcasing `The operating leverk lt is then swung downwardly to assume the. lowermost position x and the lift-bar will raise the load. f Y

. ttentionfl is called to the-factV that-inopfk eration, thea-rms l5 enter 4the liftfmember or casing 20,1upon opposite sides of the liftbar 29. rlhis mode of operation enablestheparts of. the jack to be arranged in a compaet manner, dispensing with the` laterally projecting members, ordinarilyV present in jaelrsofthis general type.;` f Y It is to be understood that the forms of my invention 'herewith shown-and described,

are to be taken as preferred examples of the saine, and that various changes 1n the. shape,

size, andv arrangement ofV parts maybe'resorted to without departing from theg spirit of theinvention or the scope of .the subjoined elaimssy Y Having thus described.Y my invention, l: claim p A jack vof the character, described, oomprising a standard; a tubular lift' easing slidably mounted upon the! ,standard and provided with transweifse outwardly. bulging pockets upon itsropposite sides, `the pook; ets having their upper walls vertically inclined land provided near their lower ends withy reeesses; anoperating lever pivotally connected 'with the standard and having its upper end forked to provide varms vwhich project into the lift easing inwardlyof and near the pockets.; and rollers4 pivotally vconneeted with theends of the arms and arranged upon the outerside Vthereof to enter the outwardly bulging pockets and engage with the inclined walls thereof ,having the recesses. h v Y.

ln testimony whereof I aiiiX Vmy signature in presence of twowitr'iesses. Y

Witnesses: Y Y v J Ermessen T, RNW/Ions.

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