US1439492A

US1439492A - Lifting jack

Info

Publication number: US1439492A
Application number: US518014A
Authority: US
Inventors: Henry J Tillar
Original assignee: T H CRAWFORD
Current assignee: T H CRAWFORD
Priority date: 1921-11-26
Filing date: 1921-11-26
Publication date: 1922-12-19
Anticipated expiration: 1939-12-19

Description

H. J. TILLAR. LIFTING JACK, FILED Nov. 26 192i.

Patented Dec. id, 1922.

UNME TEE:

lABtAQZ HENRY J. TILLAR, OF ALMEIDA, TEXAS, ASSIGNOR- OF ONE-HALF TO 1. H. CRAl/VFOBD, OF HARRIS GOUNTY, TEXAS.

LIF'IING JACK.

Application filed November 26, 1921.

T all whom it may concern:

Be it known that I, HENRY J. TILLAR, citizen of the United States, residing at Almeda, in the county of Harris and State of lexas, have invented certain new and useful Improvements in a Lifting Jack, of which the following is a specification.

This invention relates to new and useful improvements in a lifting jack.

One object of the invention is to provide a jack of the character described specially designed for the purpose of lifting vehicles, such as motor vehicles, but may be used also for general lifting purposes.

Another object of the invention is to pro vide a jack of the character described which is of simple construction and may be cheaply and easily manufactured and quickly and easily applied to the work.

lVith the above and other objects in view the invention has'particular relation to certain novel features of construction, operation and arrangement of parts an example of which is given in this specification and illustrated in the accompanying drawings wherein,

Figure 1 is a side view of the jack, and

Figure 2 is a front view thereof.

Referring now more particularly to the drawings the numeral 1 designates the base whose under side is preferably made slightly concaved so as to more readily engage with the ground to prevent slippage. 5'pstanding from the base are the standards 2, 2 which are spaced apart. Pivoted between the upper ends of these standards there is the lift lever 8 whose upper end is formed with an arcuate notch l and is extended at one side forming the finger 5 adapted to engage underneath the axle 6 of the vehicle. Pivoted to the lower end of the lever 3 there is manual lever 7 by means of which the jack may be manipulated. The hinge connecting 'said lever is a one way hinge, that is it is foldable upwardly, as

Serial No. 518,014.

shown in dotted lines in Figure 1 so as to lie between the standards 2, 2, when the jack is not in use, to permit the jack to be folded in compact form so that it may be readily carried in the vehicle.

When it is desired to apply the jack to the work the levers are swung outwardly as shown in Figure 1 and the finger 5. is en gaged under the axle. The manual lever 7 is then forced downwardly, the hinge 8 being rigid when operated in this direction, and the axle will be elevated and slip around in the arcuate notch l. The lower end of the lift lever is forced on inwardly between the standards 2, 2 until said lever assumes a vertical position as shown in dotted lines in Figure 1 and the axle will be thus held elevated and the corresponding wheel will be held clear of the ground. It is obvious thatthe axle may be lowered by pulling the lower end of the lift lever outwardly.

A. jack constructed in accordance with the foregoing specification, and the drawings referred to therein, may be easily and effectively applied to, and released from, the work.

What I claim is:

A lifting jack including a base, spaced standardsupstanding therefrom, a lifting lever pivoted between the upperends of said standards, said lever standing vertically between the standards when in active position, a manual lever pivoted to the lower end of the lifting lever by means of a one way hinge connection, said manual lever