US274007A

US274007A - Lifting-jack

Info

Publication number: US274007A
Authority: US
Publication date: 1883-03-13
Anticipated expiration: 1900-03-13

Description

(Modelz) I. L. LANDIS.

LIPTING JACK. No. 274,007. Patented Mar. 13,1883.

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UNITED STATEs ISRAEL L. LANDIS, OF LANCASTER, PENNSYLVANIA.

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LlFTING-JACK SPECIFICATION forming part of Letters Patent No. 274,007, dated March 13, 1883.

Application filed January 26, 1883. (ModeL) To all whom it may concern:

Be it known that I, ISRAEL L. LANDIS, a citizen of the United States, residing at Lancaster, in the county of Lancaster and State of Pennsylvania, have invented certain new and useful Improvements in Lif'ting-Jacks,of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain improvements in lifting-jacks, and is designed to be principally used for raising and supporting vehicle-axles dnrin g the operation of removing the wheels therefrom and applying oil to the journals; and it consists of the employment of a suitable fulcrum-standard, an operating lever, a supportingbeam, and a sliding or adjusting rest; and it further consists in so constructing said rest that it may be usefulas a combination-tool, the peculiarities of which will be hereinafter more fully pointed out.

In the accompanying drawings, forming a part of this specification, and on which like letters of reference indicate corresponding cam-lever B. A hollow sleeve extends from said cam-lever and has fitted within it a suitable hand-lever, B. To the other end of the cam-lever B is pivoted one extremity of the supporting-beam C, said beam being slotted similarly to the standard A for this purpose. Along the upper side of the supporting-beam O, and at suitable distances apart, are aseries of transverse kerfs or notches, c, for a purpose to be hereinafter named. Said beam is also provided with a series of apertures, c, for .a

like purpose to the notches.

The letter D indicates the rest, against which sets the object being elevated, and the same consists of a malleable-iron bar having a tenon, d, formed on 'one end, the pointof which is reduced to a sharp edge, thereby constituting a screw-driver. The point of this device I intend case-hardening, in order to make it stand usage. The opposite end of said bar is spread laterally and provided with a rectangular opening,D, slightly larger than the cross-section of the beam 0, within which it is adapted to fit. At each side, and at the end of said rectangular opening are formed notches constituting each a different-sized nutwrench. One of the lugs forming two sides of the notches is vertically slotted and provided with a concave recess. This constitutes a nail extractor, d, the end of said lug being beveled off at an angle, in order to form a sharp corner, which is thrust under the head of the nail byembedding the bodyof the lug into the wood surrounding the same. Another of these lugs, 01 forms a hammer. The rest D, in order to suit the different heightsof vehicle-axles, is adjusted up or down on the beam G, the lower corner of the upper side of the rectangular opening catching in one of the corners c, and the opposite corner of the opposite side of the said opening binding on the underside of the beam, thus serving to hold the rest at the desired point. In some instances I intend to reverse the position of the rest and insert the teuon (6 into the apertures c for the purpose of regulating the height of the rest.

The operation of my invention will be readily understood when taken in connection with the foregoing, and is as follows: The device being placed in the position shown in Fig. 1 of the drawings, and the rest being adjusted on the supporting-beamthe'proper height, the hand-lever B isloweredin the direction of the arrow and the supporting-beam thereby elevated, catching the axle in the crotch of the what I claim as new, and desire to secure by porting-beam provided with transverse kerfs and the adjustable rest, substantially as shown and described.-

2. In a lifting-jack, the combination, with a adjusted at different heights, substantially as vertical standard and a cam-lever, of a pivoted described. supporting-beam and adjustable rest. In testimony whereof I affix my signature in re 3. In 'a lifting-jack,the c0mbinati0n,with the presence of two witnesses.

' 5 supporting-beam having a series of apertures, Witnesses: ISRAEL L. LANDIS. of a rest provided with a tenon adapted to CHAS. D. DAVIS,

fit said apertures, whereby the rest may be WM. D. ALEXANDER.