US463599A

US463599A - Wagon-jack

Info

Publication number: US463599A
Authority: US
Publication date: 1891-11-17
Anticipated expiration: 1908-11-17

Description

G. EMONS WAGON JACK (No Model.)

Patented Nov. 17, 1891'.-

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CHARLES EMONS, OF HORNELLSVILLE, ASSIGN OR OF ONE-HALF TO \VILLIAM IV. BOYER, OF FARMER VILLAGE, NEIV YORK.

WAGON-JACK.

SPECIFICATION forming part of Letters Patent No. 463,599, dated November 17, 1891.

Application filed August 19, 1890. Serial 110.362.5369. (No model.)

To all whom it may concern:

Be it known that I, CHARLES EMONS, a citizen of the United States, residing at Hornellsville, in the county of Steuben and State of New York, have invented certain new and useful Improvements in Wagon-Jacks; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to wagon-jacks; and

it has for its object to provide a simple and improved device of this character of such elevation thereof, illustrating the jack as it appears in its extended position. Fig. 3 is a vertical sectional View. Fig. 4 is a rear end elevation.

Corre pondingparts in the figures are denoted by the same letters of reference. 1 Referring to the drawings, A designates a base-plate of approximately conical shape,

and from which projects a vertical tubularv standard B. The base-plate is preferably cast of metal and the standard formed of piping, screwed or otherwise secured therein. Disposed within the standard B is a vertitically-movable member formed by a rod or tube 0, carrying at its upper endahead-block D, which may be provided with a series of steps cl, upon one of which the axle of a vehicle is adapted to rest. The head-block is further provided with a slot d at its lower rear corner, Within which is adapted to be pivoted the inner end of 'a lever E by a pin or bolt e. At about one-third the length of the lever from. its inner end the same is bent at an angle to said inner portion, as shown, the purpose of which will hereinafter appear.

F designatesa fulcrum bar or rod formed of two strips F F and pivoted at its lower end to a lug f, projecting from the base-plate, by a pin or boltf. The upper end of this fulcrum-bar is pivoted bya pin or bolt f to the inner straight portion of the lever, preferably at or near the center of said portion. By supporting the fulcrum-bar upon the'base-plate in lieu of supporting it upon the standard it will be obvious that the weight is supported by the base-plate, and greater steadiness is thus insured when the jack is in use.

The operation and advantages of my invention will be readily understood by those skilled in the art to which it appertains. To elevate the head-block the lever is pressed downward and then inward until the inner portion thereof assumes a position at a contrary angle'to the fulcrum to that which it normally occupies, the angle of the lever abutting against the upper end of the standard and held thereagainst by pressure upon the head-block.

The strength and durability, as well as the cheapness, of the devicewill be apparent, the entire jack being constructed of metal and of such material as may be readily adapted for their manufacture.

I claim as my invention 1. A wagon-jack comprising a base-plate, a standard projecting upwardly therefrom, a vertically-moving bar working in said standard and carrying a stepped head, a lever pivoted to the latter, and a fulcrum bar or rod pivotally bearing upon the base-plate and pivoted at its upper end to the lever, substantially as set forth.

2. A wagon-jack comprising a base-plate, a standard projecting upwardly therefrom and of tubular form, a vertically-moving bar working in said standard and carrying a stepped head, an angular lever, substantially as described, pivoted to the latter, and a fulcrumbar pivoted to the lever between the angle thereof and theinner end and pivotally supported upon the base-plate, substantially as set forth.

3. A wagon-jack comprising a base-plate provided at one side with an.upwardly-projecting lug, a standard projecting centrally from the base-plate and tubular in form, a vertically-working bar disposed in said standard and carrying at its upperend a head provided with a series of steps, an angular lever pivoted at. the rear of said head, and a fulcrum-bar pivoted to the lever between its inher end and the angle thereof and to the lug projecting from the base-plate, substantially as set forth.

at. As animproved article of manufacture,

a wagon-jack constructed of metal and com? 1 prising a base'plate provided at one side with a lug, a tubular standard secured to the baseplate and projecting upwardly therefrom, a bar working in the standard and carrying at its upper end a stepped head provided at its rear lower corner with a slot, a lever pivoted at its inner end in the latter and having its handle portion bent at an angle to the inner pivoted portion, for the purpose described, and a fulcrum-bar pivoted at its lowerend to the lug upon the base'plate and at. its upper end to the. lever betweenthe angle thereofi and its inner end,, substantially as and for. the pnrposeshown and specified.

5. In awagon-jack, the combination of a as and for the purpose set forth.

base, a standard secured thereto, a verticallymovable member carried by the standard, a 2 5 lever pivotally connected with said verticallyinovable member, and a fulcrum bar or rod pivotably mounted upon the base and pivotally connected with the lever, substantially 6. In a wagon-jack, the combination of a base, a standard secured thereto, a vertica11ymovable member carried by the standard, a lever pivotally connected with said verticallymovable member and formed with an angle 35 below its inner pivoted end, and a fulcrum bar or rod pivotally mounted upon the base and pivotally connected with the lever at a point above the angle thereof, substantially as and for the purpose set forth.

In'testimon y whereof Laffix mysignature in presenceof two witnesses.

CHARLES EMONS.

Witnesses:

FLOYD W. SANSMAN, J OHN M. GooDRIoH.