US255656A - Lifting-jack - Google Patents

Description

(No Model.) 5 5 J.v NIXON.

LIPTING JAGK. No. 255,656. Patented Mar. 28,1882

Jul/anion Wz'h oess (5,5

Units STATES PATENT Erica.

JACOB NIXON, OF WINFIELD, KAN SA S.

LlFTlNG-JACK.

SPECIFICATION formingpart of Letters Patent No. 255,656, dated March 28, 1882,

Application filed February 8,1882. (No model.)

To all whom it may concern:

I Be it known that I, JACOB NIXON, of Winfield, in the county of Cowley and State of Kansas, have invented certain new and useful Improvements in Lifting-Jacks; and Ido 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 which it pertains to make and use the same.

My invention relates to lifting-jacks, the object being to provide ajack for use with vehicles which will be of such construction as to avoid the use of stepped bars or ratchets, and the expense incident to the use of such features of construction, and to provide a jack of few parts, adapted to be easily operated and not liable to breakage or disarrangement.

The invention consists in the combinations of parts hereinafter set forth, and pointed out in the claims.

In the drawings, Figure 1 is-a side elevation of my improved jack. Fig. 2 is a front view of the same, and Figs. 3 and 4represent parts in detail.

A represents the main standard of thejack. It is cut away or recessed to form a step, a, which latter is slotted, as shown at a, to receive a tongue, I), ofa bearing'block, B. The tongue 6 is held pivotally within the slotof the standard A by apin, b, on which the block B is adapted to turn.

C represents the operating-lever of the jack, provided at its inner end with a metallic loop or staple, D, which fits over the upper end of the standard A, and is pivoted thereto by a pivot, 61. The ends of the loop are rigidly secured on either side of the inner end of the lever 0, and the pivot cl forms the fulcrum of the lever.

E represents the axle-bearing standard or block, formed with the curved eud bearing, e, for the axle, and with a cut-away or recessed portion, e,which adapts the standard to the recess of the standard A. At its lower end the standard E is provided with a guide, F, formed of a metallic strip bent around the standard A, and having its ends secured to the standard E by a pivot, f. A connecting-rod, G, is secured at one end near the outer end of the operating-lever C, while its opposite end is bifurcated and secured to lugs or pins 9, projectaxle it is turned to the position shown in the full lines of Fig.1-that is, at an angle to the standard A-when by depressing the lever G the standard E is forced to a vertical position, (dotted lines, Fig. 1,) and theaxle is raised and the jack locked in raised position.

It will be apparent that my improvement is simple both in its construction and operation, and is, moreover, of an inexpensive and durable form.

Having fully described my invention, what I claim'as new, and desire to secure by Letters Patent, is

1. In a lifting-jack, the combination, with a recessed main standard, of an axle-bearing standard connected to said main standard by a pivot and loop-guide, an operating-lever provided with a metallic loop pivoted to the main standard, and a connectingrod secured at one end to the operating-le\-'er and at its opposite end to the axle-bearingstandard, substantially as set forth.

2. In a lifting-jack, the combination, with a standard provided with a slotted step, of a bearing-block pivoted to the standard and adapted to rest on said step or beturned away from the latter, substantially as set forth.

3. The combination, with the recessed standard A,havin g the slotted step a, of the pivoted block 13, the recessed standard E, connected to the standard A by the loop-guide F and pivot f, the operating-lever 0, connected to the standard A by the metallic loop D and pivot d, and the connecting-rod G, substantially as set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

JACOB NIXON. Witnesses: W. P. HACKNEY, L. D. ZENoR.

Images