US727264A - Automobile-jack. - Google Patents

Description

PATENTED MAY 5, 1903.

GWW BARTLETT. AUTOMOBILE JACK.

APYLIOATION FILED SEPT. 18, 1902.

2 SHEETBSHEET 1.

N0 MODEL.

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No. 727,264. v PATENTED-MAY5,1903.

1 G. W. BARTLETT.

AUTOMOBILE-JACK.

APPLIUATION FILED SEPT. 18, 1902.

N0 MODEL. 2 s'nmwsnnn'r 2.

Witnesses at j? l atentedlvfay 5, 190a.

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TENT GEORGE W'. BARTLETT, OF SEDALIA, MISSOURI, ASSIGNOR OF ONE-HALF TO JAMES T. MONTGOMERY, OF SEDALIA, MISSOURI;

AUTOMOBILE-JACK.-

SPEGIFICATION forming part of Letters Patent N 0. 727,264, dated May 5, 19 03; Application filed September 18, 1902. Serial No, 123,934. (No model.)

To all whom it may concern:

Be it known that I, GEORGE W. BARTLETT, a citizen of the United States, residing at Sedalia, in the county of Pettisand State of 5 Missouri, have invented certain new and useful Improvementsin Automobile-Jacks and I do hereby declare the following to be a'full,

clear, and exact description of the invention, such as will enable others skilled in the art, to

With this and further objects in view the invention consists of a lifting-frame, means for raising the same, and'locking means for retaining the same in'itslifted position.

A further embodiment of the present invention includes a suitable base, standards pivoted thereto, a liftingframe pivotally 2 5 mounted on said standards, means for swinging said standards upon their pivots for raising said frame, and means carried by'said frame and engaging one of said standards for retaining the same in its raised condition.

The invention consists in certain other novel constructions, combinations, and arrangements of parts, as will be hereinafter fully described and claimed.

In the accompanying draw1ngs, Fig'ure 1 represents a perspective view of a lifting;

jack embodying the features of the present invention. elevation of the same, a vehicle being indicated'thereon in dotted lines. Fig. 3 repre o sents a longitudinal horizontal section. taken on line 3 3 of Fig. 2, parts being omitted. Fig. 4 represents fragmentary detail views of the locking arms or levers in their various positions. Fig. 5 represents an enlarged de- 5 tail perspective view of a portion of the lifting-lever and the traveling sleeve inclosing the same. Fig. 6 represents an enlarged detail fragmentary perspective View of one of the axle-engaging pads.

It is well known that the weight of an auof a vehicle. ably 'made up of a suitable strip of metal 5 Fig. 2 represents a view in side tomobile or other vehicle when sustained by the tires thereof is more or less injurious to such tires and shortens the lives thereof, and in order to obviate this unnecessary Wear I {contemplate employing a jack which shall 55,

be capable of' lifting an automobilev or other vehicle, so that its weight will be sustained by its axles and the tires of the wheels carried thereby will be free. In the embodiment of such a jack disclosed in the accom- 6o panying drawings I contemplate employing a suitable base 1, provided with a plurality of pivotally-mounted standards 2 2, pivotally supporting at their upper ends a frame 3, which in turn is provided with axle-engaging 6 pads 4: 4, positioned for sustaining the axles Each of said pads is preferclamped about itsrespective beam of the frame 3 and provided with any suitable 7o cushioning-strip 6 for contacting with the axle being supported.

The frame 3 is made up, preferably, of longitudinal beams 3 and transverse rods 3", the said "rods pivotally connecting said standards 2 with said beams, whereby the said frame may be swung downwardly and outwardly until it is brought very nearly into contact with the base 1.

An operating-lever 7 is pivoted, as at 8, preferably centrally of the base 1, and is provided at its outer end with any suitable handle 9 for facilitating operation. A traveling sleeve 10 surrounds the lever 7 and is provided at its front end with an antifrictionroller ll, engaging the under surface of the lever 7, and a cam 12, engaging the upper surface thereof opposite said roller. Each end of the sleeve 10 pivotally, engages liftingbeam 13, which beam is bifurcated at its rear end, and the arms 14 14 of said bifurcation pivotally engage the opposite ends of the rear rod of the framework 3, so that raising and lowering the lever 7 will correspondingly raise and lower the said frame 3, the cam- 12 5 being employed to lock the sleeve 10 against longitudinal movement at any given point, whereby the said frame 3 may be raised to a desired height by the lifting of lever 7 and sustained at such height by throwing the cam Ico 12 to its locking position, as indicated in Fig. 5.

Each of the longitudinal beams 3 of the frame 3 is provided with a block 15 near its rear end, each block being formed with longit ndinalslots 16 1b, through which are passed set-screws 17 17, wherebyeach of the said blocks may be adjusted longitudinally of the framework and is adapted to have its end engage the edge of its respective standard 2 for forming an abutment therefor.

Pivoted, as at 18, to one of the longitudinal beams of the frame 3 is alocking-lever 19 and an arm 20, the said lever being formed with an engagingshoulder 21, adapted in operation to engage a stud or laterally-projecting lug 22, extending from one of the standards 2. The free ends of the said lever and arm are connected by a handle 23, which is adapted to be swung bodily end for end in one direction for bringing the arm 20 into engagement with lug 22 and similarly moved in the other direction for bringing the lever 19 into engagement with said lug.

In operation the jack is brought to the position indicated in dotted lines in Fig. 2 with the frame 3 as near the base 1 as is necessary for passing the jack beneath the vehicle to be lifted, and the jack is then positioned beneath such vehicle with the pads 4 in the vertical planes of the axles of said vehicle, the cam 12 being in its unlocked condition and the lever 19 contacting with ing 22 the handle 9 is grasped and' the lever 7 lifted until the pads 4 contact with the axles of the vehicle and raise the vehicle, the shoulder 21 then engaging the lug 22, whereby the frame 3 is locked in its (raised condition. When it is desired to remove the vehicle, the locking-cam 12 is thrown into locking position and the position of the arm 20 and the lever 19 is reversed, said arm being brought into contact with the lug 22, whereby the frame 3 is free to move downwardly except for the resistance of the locking-cam 12. The lockingcam is released sufficiently to permit the vehicle to lower gradually and its wheels contact with the ground.

Of course it will be understood that where mention is made of placing the jack beneath the vehicle it might at times be found more convenient to run the vehicle over the jack, and when removing the vehicle it would of course be at the discretion of the operator whether he would remove the jack from beneath the vehicle or simply lower the same suificiently to permit the vehicle to be moved away from the jack.

Although I have set forth in detail one specific embodiment of the present invention,

yet it will be understood that I do not desire to limit myself to the minor features set forth, but shall at all times feel at liberty to deviate therefrom within the spirit and scope of the invention 1 Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is

1. A vehicle-jack comprising a suitable base,pivoted standards, a frame carried thereby, an arm and a locking-lever pivoted to said frame, an operating-handle engaging the free end of said arm and lever and adapted when rotated to raise one of the elements engaged thereby and lower the other, a shoulder on said lever, means for engaging said shoulder for locking said frame in a raised position, and means for raising the frame, substantially as described.

2. In a vehicle-jack, the combination with pivotally-mounted standards and a frame carried thereby, of an arm and a locking-lever carried by said frame, locking means, means engaging the said arm and lever for alternately throwing said lever into and out of looking position,and means for raisin gsaid frame, substantially as described.

3. In a mechanism of the class described, the combination with pivotally --mounted standards and a frame carried thereby, of a locking-1n g extending from one of said standards, a locking-lever pivoted to said frame and designed to engage said lug, and means adapted to be brought into engagement with said ing for retaining said lever out of engagement therewith, substantially as described.

4. A vehicle-jack, comprising a suitable base, standards pivoted thereto, aframe pivotally carried by said standards, a lockinglever formed with a shoulder, and pivoted to said frame, an arm also pivoted to said frame, a lug extending from one of said standards, means for alternately throwing said arm and lever into contact with said lug, and means for raising said frame, substantially as described.

5. A vehicle-jack, comprising a suitable base, standards pivoted thereto, a frame pivotally carried by the upper ends of said standards, a lug extending from one of said standards, an arm and a locking-lever pivoted at the same point to said frame, an operatinghandle engaging the free ends'of said arm and lever for retaining the same out of the same plane and adapted when rotated to alternately bring said lever and arm into contact with said lug, a shoulder on said lever adapted to engage said lug, and means for raising said frame, substantially as described.

6. A vehiclejack, comprising a suitable base, a supporting-frame carried above the same, a beam for lifting said frame, an operating-lever, a traveling sleeve surrounding the same and pivotally engaging said beam, and means for locking said sleeve against movement, substantially as described.

7. A vehiclejack comprising a suitable base, a supporting-frame above the same, a beam for raising said frame, means for looking said frame in a raised position, a lever for operating said beam, a sleeve surrounding said lever and pivotally engaging said beam,

and a cam carried by said sleeve and adapted to be brought into locking engagement with said lever, substantially as described.

8. In a mechanism of the class described,

' 5 the combination with pivotallymounted and means for throwing same into and out of engagement therewith, substantially as described.

In testimony whereof I hereunto affix my signature in presence of two witnesses.

GEORGE w. BARTLETT.

Witnesses:

J AS. T. MONTGOMERY, CHARLES E. YEATER.

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