US475021A

US475021A - Wagon-jack

Info

Publication number: US475021A
Authority: US
Publication date: 1892-05-17
Anticipated expiration: 1909-05-17

Description

(No Model.)

L. B. BEAMS.

, v WAGON JACK. No. 475,021. Patented May 17, 1892.

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LEVI B. BEAMS, OF OASSOPOLIS, MICHIGAN.

WAGON-JACK.

SPECIFICATION forming part of Letters Patent No. 475,021, dated May 17, 1892. Application filed March 2, 1892. Serial No. 423,537. (No model.)

To all whom it may concern.-

Be it known that I, LEVI B. BEAMS, a citizen of the United States, residing at Oassopolis, in the county of Cass and State of Michigan, have invented certain new and useful Improvements in Wagon-Jacks, which improvements are fully set forth and described in the following specification, reference being had to the accompanying sheet of drawings.

The object of this invention is to provide a jack which shall be simple in construction, which can be easily adjusted to operate with axles of varying heights, and which may also serve when in use as a rack on which the wheel maybe hung during the operation of oiling.

In the annexed drawings, Figure l isa perspective View of my improved jack, showing the same in position for use. Fig. 2 is aside elevation of said jack and shows the same in the posit-ion which it assumes when not in use.

Fig. 3 shows the same in the position necessary to elevate an axle in order to raise a wheel from contact with.the floor or ground.

Referring to the drawings, the letter adenotes the base or foot of the complete jack,

and 1) two uprights located on the base a and projecting upward therefrom. These uprights b may be greatly strengthened by locating on the foot a, between the same, a block a, to which the uprights may be rigidly fastened.

Pivoted at 1), between the upper extremities of the uprights b, is an arm 0, which, as illustrated in Fig. 2, extends for a short distance substantially at right angleswith the above-mentioned uprights b. Arm 0 is then bent downward and extends in a direction parallel with the uprights b, as shown in Fig. 2, such parallel portion being denoted by reference-letter 0. Arm 0 is then bent inward at right angles with portion 0 and parallel with the first-described portion of the arm. Arm 0 as a whole is shaped substantially as the outline of a rectangle, with one of its longer sides removed, the exact shape of the same being clearly seen in any of the figures of the annexed drawings. The free end of arm 0 is pivoted to the end of the operating handle or lever d, which lever is hung in bearings at e between two sliding blocks f. These blocks f are located the same distance apart as the uprights b, and are arranged to slide arm swinging outward and slightly upward.

As the downward movement of the leverd is continued, the blocksf, between which the lever is pivoted, ride slowly downward on the edges of the uprightsb, until the pointe (where the lever is pivoted) passes below the are of the circle described by the free end of the arm a. (See Fig. 3.) When this position is reached by pointe on blocks f, it will be readily understood that any pressure on arm vc calculated to force the said arm inward (toward the uprights) will serve to throw and hold the end of the operating-lever (I firmly against the floor orground, consequently holding' arm 0 in its outward and elevated position. (See Fig. 3.) An arm 9 is provided, one end of which is formed with a hub g, which is bored to fit loosely upon portion 0 of arm 0. The outer or free end of arm g is grooved or spoon-shaped, as at h, for a purpose hereinafter explained. I

Assuming now that I have a complete jack of the form described and it is desired to use the same during the operation of oiling the axles of a vehicle, the jack is first placed directly in front of the wheel to be oiled (see Fig. 1) and the nut having been removed from the axlethe arm 9 is, adjusted on portion 0' of arm 0 until the threaded end of the axle lies in the grooved end of the said arm g.

The tendency of the arm 9 to slip downward 0 ,upon portion 0 after adjustment will cause the hub on the end of arm g to cramp upon portion 0, thus holding itin the desired position in which it had been previously placed.

Pressure is now applied to lever d, causing 5- arm 0 to swing slightly outward and upward until the point c has passed below the arc described by the free end of arm 0, as above explained. When arm 0 swings outward and upward, it naturally carries with it the arm g, above described as having been adjusted under the end of the axle. WVhen arm 9 is carried upward, it raises the end of the axle with it, thus lifting the wheel fromthe floor or ground. The wheel may then be slipped from the axleof the vehicle onto the arm g, as shown in dotted lines, Fig. 3, where it may remain While its axle is being cleaned and oiled, thus avoiding the necessity of lifting the Wheel from the axle and replacing the same, which task in the case of heavy and muddy wheels is often a very disagreeable and laborious one. After oiling the axle and returning the wheel to place thereon the lever-handle d is raised to the position shown in Fig. 1, permitting the wheel to rest on the ground or floor, when the jack may be removed and the nut again screwed on the axle end. My device as a Whole is of simple and cheap construction, is adjustable for use with axles of LEVI B. BEAMS.

Witnesses:

A. J. SHANNON, HENRY MCCOY.