US425682A - Wagon-jack - Google Patents

Description

Si LINCOLN.

WAGON JACK.

No. 425,682.v Patented Apr. 15.1890.

vUNITED STATES PATENT OFFICE.

SAMUEL LINCOLN, OF WEST DERBY, VERMONT.

WAGON-JAC K.

SPECIFICATION forming part of Letters Patent No. 425,682, dated April 15, 1890.

Application filed July l5, 1889.

To all whom it may concern:

Be it known that I, SAMUEL LINCOLN, a citizen of the United States, residing at Vest Derby, in the county of Orleans and State of Vermont, have invented a new and useful Machine for Raising Wagon Vheels, of which the following is a specification.

This invention has relation to lifting-jacks of that class known as lever-jacks, and among the objects in view are to provide a cheap, simple, and efficient jack, durably constructed, and adapted to provide an increased field of adjustment.

With these general objects in view the invention consists in certain features of construction hereinafter specified, and particularly pointed out in the claims.

Referring to the drawings, Figure 1 is a perspective of a jack constructed in accordance with my invention. Fig. 2 is a similar View in details of the supplemental adjustable step. Fig. 3 is a transverse section on line Qc of Fig. 1. l

Like numerals of reference indicate like parts in all the gures of the drawings;

1 represents the standard, the lower end of which is provided with a tenon 2, which takes into an opening formed in the base 3. A pin 4 is inserted through the standard just above its lower end, and a screw 5 passes through the bot-tom of the base and through the tenon 2 and up into the crosspin 4, whereby a secure connection is established between the standard and-base. The front edge of the standard is inwardly curved, as at G, and theV lower portion of said edge similarlyT curved, as at 7, and adapted to slide against said edge is the lifting-bar 8, the rear edge of which conforms to the curves 6 and-7, as is common in this class of jacks. bar and standard are connected by an upper bail 9 and a lower bail 10, the ends of the bails being bolted to the opposite sides of the lifting-bar. By reason of the coniiguration mentioned the upper end of the lifting-bar is wider than the lower end, and is provided with a series ofsteps 11, over which is a facing or metal strip 12, bolted thereto and extending down the front of the lifting-bar and partially down the rear edge thereof.

13 represents the operating-handle bolted, as at 14, to the sides of the standard, and interposed between the same and standard are opposite wearing-plates 15. The ends of the handle beyond the pivot 14 are offset and The lifting Serial No. 317,640. (No model.)

pivotally connected to links 1G, the lower end of which is pivotally connected to the lower end of the lifting-bar 8.

17 represents a supplemental adjustable step formed of strap metal, and, as shown in Fig. 2, it is formed by bending a blank to form opposite arms 18 and an intermediate step portion 19, the arms being bolted by a single bolt 20 to the lifting-bar. The step portion 19 is formed by providing a truncated cone-shaped portion at one edge of the blank and bending the strap upon the lines indicated by dotted lines. A V-shaped cap 21 is then mounted over the step portion and the same is lcomplete. The bolt 2O is removable, and is adapted to secure the step at any desired elevation upon the jack by inserting the same through any one of a series of openings 22, formed in the lifting-bar. By this it is apparent wheels of varying diameters may be raised'from the ground for the purpose of cleaning, oiling, or removing.

Having described my invention, what I claim is- 1. The combination, with the standard, of a sliding lifting-bar mounted thereon and terminating at its upper end in an enlarged head having a series of steps and a series of perforations in its front edge, straps connecting the lifting-bar and standard, a lever pivoted to the standard, a link connecting one end of the lever to the lower end of the bar, and an adjustable step located at the front edge of the lifting-bar, provided with rearwardly-disposed perforated arms adapted to register with one of the perforations in the lifting-bar, and a removable locking-pin inserted through the perforations, substantially as specified.

2. The combination, with the lifting-bar and means for raising and lowering the same, the bar having its front edge provided with a series of perforations 22, formed therein, of the step 17, consisting of the strap bent to form the opposite arms 1S, perforated near their ends, and the intermediate step 19, having the cap 21, and the bolt or pin 20, adapted to be passed through the perforations.

SAMUEL LINCOLN.

lVitnesses:

T. T. STEWART, E. A. STEWART, ALICE M. LEARY, WILLIE J. CoRRow.

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