US1197998A - Jack. - Google Patents

Description

J. E. BEAIVIAN.

JACK.

APPLICATION FILED AuG.I2, 1915.

Patented Sept. 12, 1916.

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2 SHEETS-SHEET l.

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EEEEEI J. E. BEAR/IAN.

JACK.

APPLICATION FILED AUG. I2, 1915.

Patentedept. 12, 19H5.

2 SHEETS-SHEET 2` e Il JAI/IES E. BEAM-AN, OF JULIET, ILLINOIS, ASSIGNOR TO WILLIAM E. PRATT, F CHICAGO, ILLINOIS.

JACK.

August 12, 1915.

To all whom t may concern.'

Be it known that I, JAMES E. BEAMAN, a citizen of the United States, and a resident of the city of Joliet, in the county of Will and State of Illinois, have invented certain new and useful Improvements in Jacks; and I do hereby declare that the following is a full, clear, and eXact description of the same, reference being had tothe accompanying drawings, and to the numerals of reference marked thereon, which form a part of this speciiication.

This invention relates to jacks adapted to elevateandmove from place to place automobiles and other vehicles, and has for its object to provide certain improvementsvin the construction of the same, as will be hereinafter more definitely pointed out andI claimed, reference being had to the accompanying drawings, in which:

Figure 1 is a top plan view of a device embodying the principles of my invention. Fig. 2 is an end elevation thereof. Fig. 3 is a section taken on line 3 3 of 'F ig. 1, with parts shown in elevation. Fig. 4 is a detail section taken on line 4 4 of Fig. 2. Fig. 5 is a detail section taken on line 5 5 of Fig. 3. Fig. 6 is a detail section taken on line 6 6 of Fig. 2, with parts omitted. Fig. 7 is a plan view of the universally adjustableactuating means `detached from the device. Fig. 8 is a detail section on line 8 8 of Fig. 1. Fig. 9 is a fragmentary detail section taken on line 9 9 of Fig. l.

Asshown in the drawings, the frame of the device is triangular in shape, as shown in the plan view ih Fig. 1, and consists of heavy I- beam bars 1, 2, and 3, respectively, suitably connected at their ends one to another, of which the bar 1, is straight and the bars 2 and 3,curved upwardly at their meeting ends. For this purpose heavy brackets 4, each having a vertical tubular extension 5,

and laterally extending legs 6 and 7, are rigidly bolted or otherwise suitably secured on the ends of the straight I-beam bar 1, the legs 7, of,v said respective brackets being of channel section with the upper and lower flanges extending outwardly to receive the bar 1, on the outer surface of the brackets between said Hanges, as clearly shown in Figs. 1, 2, and 3. Within the upper and lower webs 4a of the brackets 4, which join the arms 6 and 7, is mounted a vertical Speciicatiers Patent.` Patented Scpfj. I2, IQII:

Continuation in part of application Serial No. 878,677, filed December 23, 1914.. This application filed Serial No. 45,104.

pintle bolt 8, and lpivotally connected between said webs upon said pintle bolt is a short bar or arm 9. Said bars or arms 9, are rigidly bolted or riveted or otherwise suitably secured to the respective frame bars 2I and 3, so that the latter are permitted a pivotal movement about said respective pintle bolts 8, and may swing inwardly into the dotted line` position shown in Fig. 1. It is readily apparent from Figs. 1 and 4, that the frame bars 2 and 3, attached upon the respective arms or bars 9, when swung outwardly into position for use, lie within the channels of the legs 6, on the inner surfaces thereof formed by the webs 4a, as distinguished from the frame bar 1, which is bolted within the channel on the outer surfaces of the-legs 7. Said leg members 6,

thus act as stops todimit the outward movelof the bracket arms 10, are curved yoke members 11, in each of which a wheel l2, is journaled, so that a caster wheel support is thus a'orded for each of said brackets 4. A tf-shaped bracket 13., somewhat similar in construction to the bracket 4, is rigidly secured by bolts or other suitable means upon the other end of the frame bar 2, said bracket 13, comprising legs 14 and 15, of which the leg 14, is of channel section, with the frame bar 2, bolted within the channel on the inner surface of said leg. 'Ihe other leg 15, which is also of channel section, has extending therethrough, as clearly shown in detail in Fig. 5, a detachable or removable pintle bolt 16, and pivotally engaged thereon. is a short bar or arm 17, which is riveted to the end of the frame bar 3. It is readily apparent, therefore, that by removal of the bolt 16 the frame member 3,.may be swung inwardly against the frame bar l, and the frame bar 2, swung also inwardly overlapping the frame bar 3, when the device is in folded position. At the vertex of the V- bracket member 13, an enlarged boss is formed, provided with a vertical recess thereintaii'ording a pintle support for the gudgeon end of a curved yoke member 18, having journaled therein a roller 19, so that a caster wheel support is thereby provided for said bracket member 13.

rlhe elevating supporting mechanisms for the vehicle are mounted within the bracket members 4, and for this purpose a long jack screw 20, extends into the tubular extension 5, of said bracket members, and at its lower end is provided with a collar 21, rigid thereon, having a projection which engages in a groove 22, extending longitudinally within said tubular member 5, thus preventing rotation of said jack screw 20, but permitting the same to move vertically. Rotatably mounted on the upper end of the tubular member 5, is a bevel pinion 23, which, on its interior, is threaded to engage the threads of the jack screw 20, so that ro tation of said pinion causesan elevation or lowering of the jack screw, according to the direction of rotation. In order to retain said pinion associated with the tubular member 5, the hub of said pinion is eX- tended downwardly within said tubular member and grooved to receive a set screw 23a, engaged therewith. Secured upon the 4upper end of each of said jack screws 20, is

a shoer24, and a supplementary shoe 25, is adapted to be placed thereon, and for this purpose said shoe 24 is provided with one vertical pin 26, and one inclined pin 27, loosely engaging in similarly directed apertures in the shoe 25, to prevent lateral displacement thereof. Lugs 28, are also formed on the side walls'of the shoe 25, and when said shoe is in position upon the shoe 24, bear upon the surface thereof to assist in properly supporting the auxiliary shoe with a load thereupon. For the purpose of rotating said lrespective pinions 23, simultaneously in order to effect simultaneous adjustment of the jack screws, a long shaft 29, is journaled at its ends in small laterally eX- tended bearings 30, provided on the side of the brackets 4, and rigidly secured upon said shaft in position to mesh with the bevel pinions 23, are bevel pinions 31. Swingingly mounted upon said shaft 29, is a bracket 32, having a downwardly directed stud shaft 33, on which is journaled a composite bevel pinion and ratchet wheel, the bevel pinion being denoted by the reference numeral 34, and the ratchet wheel by the reference numeral 35, and keyed upon said shaft 29, in position to mesh with the bevel pinion 34, is another bevel pinion 36. In order to rotate said composite bevel gear and ratchet-wheel and thus impart rotation to the shaft 29, through the bevel pinion 36, a long handle 37 is pivoted on the hub extension of said gear and wheel member 34-35- An upright lug 33, is formed on the handle 37, adjacent the periphery of the ratchet wheel 35, and journaled thereon is a pawl 39, adapted to be swung into the position shown in Fig. 7, to rotate the ratchet wheel and bevel pinion in a counter-clock wise direction by movement of the handle 37, or to be swung through an angle of one hundred eighty degrees into an opposite position to engage the teeth at the other side vof the handle 37, on the ratchet wheel, to rotate the ratchet wheel in the other, or a clockwise direction. For the purpose of easily swinging said pawl 39 into either one of its operating positions, a long rod 40, is rotatably mounted upon the upper surface of the handle 37, in lugs 41, formed' thereon for the purpose, and the inner end of said rod is bent at an angle, as denoted by the reference numeral 42, to engage loosely through an aperture provided in a tail portion 43, on said pawl 39, and the other end of said rod 40, is bent around to form a finger piece 44, for conveniently actuating said rod 40, throwing the same from one side to the other and the pawl 39, therewith.

The operation is as follows: The device when out of use, that is with the frame bar members 2 and 3, swung inwardly in overlapping relation upon one another adjacent the frame bar 1, but of course with the folded frame member supported upon the various caster wheels 12 and 19, the device, even though folded, may be rolled from place to place. When it is desired to use the device in elevating a vehicle, the frame bars 2 and 3, are swung outwardly, such movement being limited by the respective legs 6, of the brackets 4, and the removable bolt 16, is then inserted through the apertures in the legs 15, of the bracket 13, and through the eye of the bar member 17, so that` a rigid yassociation of the elements is obtained, the

extended frame being triangular in shape, as clearly shown in Fig. 1. The device is then rolled beneath the vehicle and the shoes 24, or the shoes 25, ifythe latter supplementary shoes are used, to obtain a greater initial elevation, are moved beneath the axle of the vehicle. The shoes are brought into Contact with the under surface of the axle by rotating the shaft 29, by hand if desired,

and for this purpose a handle 45, is provided thereon, and after the proper preliminary adjustment of the jack screws has been made the screws are further rotated by the handlel 37, and ratchet wheel 35, which serves to drive the shaft 29, which in turn, through the intermeshing pinions 23 and 31, rotate and cause elevation of the jack screws. It is obvious that due to the caster wheels supporting the elevating device, after the vehicle has been elevated thereon the same may be moved in any direction on the device and in a very confined area. Due to the fact that the composite ratchet wheel 35, and lbevel pinion 34, together with the handle 37, are all mounted upon the bracket member 32, which is swingingly mounted upon the shaft 29, a universal adjustment of said handle is possible, that is to say the same may be swung in a vertical plane to any desired position, the bracket 32, rotating on the shaft 29, to permit such an adjustment, and furthermore the handle 37, may be swung laterally with the hub of the composite gear and Wheel member 34-35, as a pivot, into any position priorto actuation of the ratchet Wheel 34, by merely throwing the pawl 39, into a neutral position.

I am aware that various details of construction may be varied through a wide range Without departing from the principles of this invention, and I therefore do not purpose limiting the patent grantedV other- Wise than necessitated by the prior art.

I claim as my invention:

1. In a device of the class described, a frame comprising a plurality of rigid members pivoted to each other and capable of disconnection at one -point to permit folding, caster wheels supporting said frame, and elevating means on said frame to lift and support a vehicle thereon.

2. In a device of thej'class described, -a triangular 'frame comprising rigid members pivoted to 'each other and capable of disconnection at the point of juncture of two of said members to permit folding, caster wheels supporting said frame, and elevating means on said frame to liftand support a vehicle thereon. a

3. In a device. of the class described, a frame comprising a plurality of rigid members pivoted to each other and capable of disconnection at one point to permit folding, caster Wheels supporting said frame, elevating mechanisms mounted at the points of connection of two of said members, and a single means for'simultaneously operating said elevating mechanisms.

4. In a device of the class described, a triangular frame comprising V-shaped brackets, a rigid frame member connected rigidly to certain of said brackets, other frame members pivotally connected to said brackets, another V-shaped bracket lrigidly connected to one of said pivotally mounted frame members, means releasably engaging' another of said pivoted members to said last-mentioned bracket to retain the frame in extended position, and elevating mechanisms on the frame.

5. In a device of the class described, a triangular frame comprising brackets, a rigid frame member connected rigidly to certain of said brackets, other frame members pivotally connected to said connected toI one of said pivotally mounted frame members, means releasably engaging another of said pivoted members to said last-mentioned bracket to retain the same in extended position, a plurality of elevating mechanisms, and a common means for actuating the same simultaneously.

7. In a device of the class described, a

frame comprising members ivotally connected to one another, brac zet pieces for limiting the movement of said members into extended position, a removable bolt for retaining said members in extended position, caster wheels supporting the members both in extended and in folded position, and elevating mechanism mounted on the frame to lift and support a vehicle thereon.

8. In a device of the class described, a rigid member, elevating mechanisms mounted at the ends of said member, a common actuating means for said elevating mechanisms supported parallel with said rigid member, and other members pivoted to the ends of said-,rigid member and adapted to be extended and connected at their outer ends to form a triangular frame or to be folded against said rigid member.

9. In a device of the class described, a rigid member elevating mechanisms mounted at the ends of said member, a common actuating means for said elevating mechanisms supported parallel with said rigid member, other members pivoted to the ends of said rigid member and adapted to be extended and connected at their outer ends to form a triangular frame or to be folded against said rigid member, and caster wheels supporting said members in extended and in folded position.

In testimony whereof I have hereunto subscribed my name in the presence of two subscribing Witnesses.

JAMES E. BEAMAN.

Witnesses: Y

CHARLES W. HILLS, Jr., EARL M. HARDINE.

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