US1365758A - Lifting-jack - Google Patents

Description

C. R. WINTER.

'LIFTING JACK.

APPLICATION FILED sEPT.20, IQIZ 2 SHEETS SHEET I.

Patented Jan. 18, 1921.

C. R. WINTER.

LIFTING JACK.

APPLlCATlON F|LDsEPT.20\ I91 1.

Patented Jan. 18, 1921.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

CARL It. WINTER, OF CINCINNATI, OHIO.

LIFTING-J'ACKi Toall whom it may concern Be it known that I, CARL R. WINTER, a citizen of the United States, and a resident -of Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and, useful Improvements in Lifting- Jacks, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to lifting jacks for automobiles and the like wherein the jack is permanently secured to the automobile and operable from some convenient point of the machine, without the necessity of troublesome labor in connection therewith. I am aware that it has been proposed in the ast to provide permanent jacks on automo iles, and other devices such as lifting trucks and the like, but so far as I have been informed, these devices, when applied to automobiles have been too cumbersome, expensive and unwieldyto'have come into practical use.

' In permanent liftin jacks for automobiles, beside the above defects, there-has been another defect which applies to all jacks for automobiles, so far as I am informed.

on a straight line from the ground to the load supporting plate, and hence the supporting surface on the ground must be fairly level, or else the vehicle will be thrust forward and topplethe jack over, due to the slanting of, the base. Thus it is that in jacking up the rear wheels of an automobile on the road, much difficulty is frequently foulpd in getting the propersupport for the ac It is the object of my invention toprovide a jack which has a pivoted foot forsupporting the load, thereby providing a jack which is enabled to give at the pivot so as to allow for unevenness of the base. The imortance of this method of elevating the oad is apparent when applied to a perma= nently attached jack, becauseinit the selection of a proper supporting surface for the jack would be a good deal of difficulty on a ,rol igh road. a.

hen again, I provide a double toggle lift which permits me to do away with the necessity of demanding a space for the lifting column above the chassis ofthe automobile, as in the usual type of jack, as will be apparent from the-description that follows.

Specification of Letters Patent. Patented Jan: .18 Application filed September 20, 1917. Serial No. 192,253." 1

The objects and advantages above stated. and others that will appear below, I' accom plish by that certain construction and arrangement of parts to be hereinafter more specifically pointed out and claimed.

In the drawings,

Figure 1 is a side elevation of the rear portion of an automobile, showing my invention applied to the rear axle, with the whlerel and axle broken away to expose the ac Fig. 2 is a top plan view of the same parts shown in Fig. 1, partly diagrammatici Fig. 3 is a side elevation of the jack on a larger scale as provided for attachment to a rear axle.

Fig. 4 is a rear elevation of the jack.

Fig. 5 is a vertical sectionthrou-gh one of the sockets.

Fig. 6 is a section of the foot and a projection therefrom. i

It should not be understood, from the fact that the jack shown in the drawings and described below is applied to the rear axle of a vehicle, that this is the only manner in which itsuse is contemplated. On the contrary, with simple modifications of the mounting structure the jack could be ap pliedto other positions and other vehicles, although it is particularly well adapted to automobiles;

The vehicle to which the device is shown as applied has a rear axle 1 and rear wheels '2. As usual there are mud guards 3 and a running board 4. The housing for mounting the "jack on the rear axle is shaped to conform to the .pin 9 through the clip member and mount ing the arms on the two exposed ends of the pins.

Thsja kl has a coupling member '10 to which/are "pivoted at each side the pairs of to ggIearmsII, 11, 12, 12. To the member 10 is pivoted in any suitable manner. the

' supporting foot 10. The armsf8, 8,and 11, 11, are pivotally connected to a socket member 13, and thearms 9, 9, and 12, 12, are,

likewise connected to a socket member 14. The two socket members are alike, and have ears 15 'whic h providela 'mounting for the ;pivot pins 16' bymeansof whichthe toggle armsare pivoted. It can thus b68681 that a doubletoggle device is provided, mounted [onthe axle andswith a supporting :foot

adaptedto leethrust downward against the ground by the' -operation of the toggles.

' 'For'this' purpose, the socket r'riemhers. -are interiorly screwthreaded' and an joperating screw 17' provided =with oppositely directioned threads, as in a turnibuckle'sciew ,'so

' that when in engagementwith the socket 1a membels the operation ofthe screw w-ill' draw the socket pieces toward, or force them away fromeach otheri .Thef-operation-of' -f; 'drawinglith'eisockets toward -.{e a'cli other- 1 thrustsdown the supporting foot, as will be a readily understood; To preventjthe toggles from getting 'inparallel with-each other and thereby permitting-the load to'swing down, bo'ssesfi are'formed'on each sideofthe clip.

zmember,-'and bosses {10Pflon each-sidejof the I member 0,-;Which serve asabutments to pres, vent thetoggles from assuming such" posl- 1 tion,

- housing; Mountedj beneath. the". running lboa'rdjon the car. is a shaft 22, whichis turnedbyfif'a removable operating-handle 23. r The) shaft. eiitersthe liousing-20fa1so. and has 'a- 4 "beveled gear. :24s withinsaid housing which I meshes with the gjear .21. .The;housing is" such thatits movement around the shaft 22" will mainta nlthe. beveled gear 21' always equidistant from the axis of'said shaft.

" 'The pivoted foot which is preferred by me 1 is of the ball and socket type, which permits I of some freedomof-the footfor adjustment of its positions in any direction. This is. particularly,valuable in the-toggle, type of jack which I-have developed, since without t the operating screw would-probably jam tight, should-'an-uneven surface be encountered.

The member to which the toggles arepiv oted is formed with .afsemispherical recess 25 on the under side.' The foot is shaped into a ball'26 on its upper side,-which ball fits into the recess. A bolt 27 is secured in the toggle pivot member 10, which passes through the foot. Aiconical or taperingrecess 28 in the upper side of the foot'permits the movement of the foot on the bolt, and the head 29 of the bolt seats against a taperedboss 30 in a recessed portion ofthe under side of-the foot, which also permits of the tipping of the foot I L' with regard to the bolt.

The above familiar construction provides p tin'g'the screw,'ashaft l8jis .pro- ;vided-, having a universal 'jointconjne'ction I 219;.with the sc'rew, the same having a slidin connection l'9 with the-shaft. The shatt '30 18-enters' a small bevel gear housing 2Q, and

,isflpi'ovi'ded-with a beveled gear 21. insaid asimple'mcthod of operating the screw and hence tl1e ack.- It can be worked quickly {1'11C1COI1VIl1QI1tly, and lsio'f quite simple construction. It is not desired that the claims that follow be'limited in their construction dueto the fact that I have failed to call at- Having thus described my invention, what Y I clalm as new and desire to secure by Letthrough said socket members and having oppositely threaded ends fol-engagement tlierewitli;to actuate the toggles, a coupling mem berfor the-outer ends of the-toggles .-1with a supporting foot pivoted thereto iwhereby said screw -,may-maint ain a sub 'stantially horizontal position, a. shaft connection with the screw, and means for re- "volvmgfl said shaft. V

mounted on-the vehicle, and having flexible 2.. The combination, ina jack, of a double toggle, afoot at oneend of the double toggle, mean's fOP'SllSPQIldlIlg the'other end of'saul toggle fro'm'a vehicle, a screw for engage- .ment with the middletjoints of the .double.

toggle,j-a 'revoluble shaft. on the vehicle, an extendable shaft :operatively connected thereto, and 4 having. aswinging connection therewith, and a universaljoint between the latter shaft and the screw, for the purpose described. i. l

. 3. A jack for vehiclesand the like coniprising a member to be secured to the automobile, and a supporting foot, toggles- 'con-.

necting saidmem'ber and foot. means :for drawing the middle joints of the toggles toward and away from each other to depress or elevate the foot, comprising a right and left hand screw and means -at the two extremities of the toggles for preventing the toggles from being drawn past a parallel with each other, for .the purpose described.

4. The combination with a securing clip for mounting on a vehicle, a pair of toggles secured to said clip,said toggles having, interiorly threaded socket members for their middle joint, screw passing through said socket members and having, oppositely threaded ends for engagement therewith to actuatethe toggles, and a supporting footsecured to the toggles, said clip and foot.

having means for preventing the toggles from moving past a parallel with each other, for the purpose described.

' CARL R. WINTER.

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