US2392955A

US2392955A - Two-wheel jack

Info

Publication number: US2392955A
Application number: US500529A
Authority: US
Inventors: Clarence F Stalcup
Original assignee: Individual
Current assignee: Individual
Priority date: 1943-08-30
Filing date: 1943-08-30
Publication date: 1946-01-15
Anticipated expiration: 1963-01-15

Description

4 I I c. F. STALCUP- 2,392,955

Two-WHEEL JACK Filed Aug. 30, 1943 v INVENTOR- CLARENCEE STALCUP;

Patented Jan. 15, 1 946 UNITED STATES PATENT OFFICE TWO-WHEEL JACK Clarence F. Stalcup, San Diego, Calif.

Application August 30, 1943, Serial No. 500,529

1 Claim.

This invention relates to conveyances and more especially to a two-wheel jack and truck.

An object of the invention is to provide a simple; practical and efficient two-wheel jack as described.

Another object of the invention is to provide an improved two-wheel jack having greater lifting power.

A further object is to provide a two-wheel jack occupying reduced space when not being used.

Other objects and advantages will appear and be brought out more fully in the following specification, reference being had to the accompanying drawing, wherein:

Fig. 1 is a sectional elevation of a two-wheel jack embodying my invention.

Fig. 2 is a similar view showing the jack in operated position.

Fig. 3 is a similar view showing the jack in condition to be moved, and

Fig. 4 i a rear view of the jack as seen in Fig. 1.

Referring more particularly to the drawing I show a jack having a longitudinally extending frame I comprising a pair of side pieces H secured together by one or more cross pieces [2, and having handles l3. The shaft M is suitably secured adjacent the lower ends of side pieces II and provides bearings for a pair of wheels 15. A rod I6 is secured between side pieces I l and forms a pivot for a load supporting member I'I. Member I! has a forwardly extending platform portion l8 and a pair of angularly extending portions l9 which extend along side pieces ll. Portions 19 each have a further angula-rly extending portion 20 provided with a notch 2| and an abutment cutout 22.

I provide locking means for the platform member which comprises a locking bar 23 which extends across side pieces H and is slidable along pieces ll, however restricted by guide bars 24 secured thereon. A pair of rods 25 are secured to bar 23 and pivotally secured at 26 to a hand lever 21 which is pivotally secured at 28 to a bracket 29 on a cross piece 30 secured between side pieces II.

The operation of the invention should be apparent from the foregoing description. The jack is particularly adapted for lifting and conveying especially heavy loads such as a stack of cement bags 3! which can be approached with the jack as shown in Fig. 1, the stack being tilted so that portion iii of member ll can be slid thereunder with looking bar 23 in engagement with notches 2!. A lever 21 can then be rotated upwardly to release locking bar 23 from notches 2i and the frame l E] rotated forwardly on pivot rod Hi to the position shown in Fig. 2, whereupon lever 21 is pushed downwardly causing locking bar 23 to engage abutments 22 and secure frame l0 and member I! in the relative position shown in Figs. 2 and 3. The load represented by sacks 31 can now be swung back to the conveying position shown in Fig. 3 by leverage with a point adjacent rod l6 as a fulcrum, wheels l5 being off the ground at the start of this move as shown in Fig. 2, thus permitting the hoisting of a heavier load on the jack than would :be possible if the load were otherwise required to be lifted with the point of contact of wheels I5 and the ground as a fulcrum.

It should also be clear that when the jack is not in use it can be placed in the condition and 5 position shown in Fig. 2 where it will occupy less space than is required for a jack of conventional construction. 7

Having described my invention what I claim is:

A two-wheel jack as described having a longitudinally extending frame provided with traction wheels adjacent one end thereof, and including a pair of rails having handles at the other end. a load supporting member pivotally secured to said frame adjacent said first end, and having arm portions extending along and outside of said rails adapted for a plurality of angular positions with respect to said frame, said arms each having a pair of spaced lock bar notches in an edge thereof toward said handles, a locking bar extending across and under said frame and being slidable along said frame into and out of engagement with said notches, a link member connected to said bar, and a manually operated link actuating and locking lever under said frame adjacent said handles,

CLARENCE F. STALCUP.