US571078A - Wagon-jack - Google Patents

Description

(No Model.) 2 sheets-sheen 1.

J. J. ADGATE.

WAGON JACK.

No. 571,078. Patented Nov. 1() 1896.

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(No Model.) r 2 sheets-sheen 2.

J. J. ADG ATE.

WAGON JACK.

Nb; 571,078. Patented Nov. 10, 1896.

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UNITED STATES PATENT OFFICE;

JOSEPH J. ADGATE, OF LIBERTY, NEXV YORK.

WAGON-JAG K.

, SPECIFICATION forming part of Letters Patent No. 571,078, dated November 10, 1896 Applioationfiled June 25,1896. Serial No- 596,854. (No model.)

To all whom it may concern.-

Be it known that LJosnrn J .ADGATE, a citizen of the United States, residing at Liberty, Sullivan eounty,NewYork,have inven ted certain new and useful Improvements in Wagon- J acks,of which the following is a specification.

My invention relates to that class of wagonjacks wherein a detachable hand-lever is combined with a vertical standard having a number of fulcrum-points. It is important that such jacks shall be light, strong, and compact, not likely to get out of order, simple and cheap in construction, and I accomplish these results in the manner hereinafter set forth.

In the drawings, Figure 1 is a vertical edge view of my jack with the lever in the retaining-loop. Fig. 2 is a side view of the same. Fig. 3 is a perspective view of the jack with the lever in position for use. Fig. 4 shows the lever-collars, the lever being indicated by dotted lines; and Fig. 5 shows the upper end of the standard with the straps removed.

Like parts are referred to by like letters in all the figures.

Ais the vertical wooden standard, provided with the base B. At the upper end of the standard, near each edge, I form a groove 1) b, Fig. 5, the same comprising a series of holes connected by narrower channels. I prefer to place these grooves in rabbets, as shown, Fig. 5, and over these grooves I fasten sheet-metal straps G G, provided with holes 0 c c, corresponding with the holes I) b b in the standard A. These straps extend over the top and down both sides of the standard, the construction on each side being the same. The Waste-metal strips formed in the manufacture of washers are suitable for these straps, so that I am enabled touse a very inexpensive article for this part of my jack. The round holes being of greater diameter than the length of the lever-hooks will each allow the hook to enter bodily, the point of the hook passing into the channel in the standard as the lever is brought into a horizontal position.

0 is a hand-lever recessed at its end D, where it is intended to support the wagonaxle. Upon the lever are placed collars E E, provided with the hooks e 0. These collars are identical, but are placed in reverse positions upon the lever. They are formed of cast metal, and surrounding the lever, as they do, they utilize the whole strength of the lever and enable me to use a lever of minimum slze.

F is a retaining-loop to hold the lever when not in use.

.When it is desired to use the jack, the standard is set near the wagon-axle to be raised, the hand end of the lever is raised, the end D is placed beneath the axle and brought-up against it approximately, the forward hook e is hooked into one of the holes 0, the hook e projecting'down in the groove 1) 6, thus forming a fulcrum for the lever, and the handle of the lever is depressed till the axle has been raised to the desired height. The rear hook e is then hooked into the hole 0 adjacent to it, when the lever will be locked in place and will firmly hold the weight upon it.

Owin to the reversed position of the hooks e e on the collars E E the tendency of the lever to twist on account of the weight being to one side of the fulcrum will be counterbalanced by the tendency of the other hook to twist the lever in the opposite direction, so that thelever will bear the load evenly and squarely.

' I prefer to make the hook e ofless width than the collar E, leaving a shoulder on the collar on each side of the hook, thus making a smooth bearing on the straps G G. 7

It will be seen that the straps are interchangeable, being both alike on both sides, as stated, and that the collars are also interchangeable. The standard has no projecting parts (except the loop F) which are liable to be broken or get out of order. The straps G Gr distribute the load on the standard A, so as to utilize its greatest strength. The fulcrum bearings are disposed so as to secure the greatest possible resistance from the metal used. The hooks e e are made to carry the load at their strongest portions close up against the collars, and the twisting or rolling tendency of the lever, because of the lateral fulcrum, is overcome.

Having thus described myinvention, what I claim, and desire to secure by Letters Patent of the United States, is-

- 1. The combination of an upright wooden standard, metallic straps along opposite edges of the same side thereof, there being a series of holes in each of said straps, and recesses in the standard beneath said holes, a wooden 1ever, two interchangeable collars each provided with a hook thereupon, said collars being placed upon the lever with the hooks upon the same side thereof and relatively reversed, the forward hook near the upper edge of the lever, and the rear hook near the lower edge thereof, said hooks being adapted to engage in the opposite series of holes by lateral movement substantially as described.

2. The combination of an upright Wooden standard, provided with vertical rabbets along opposite edges of both of its sides, there being vertical grooves in said rabbets formed of separate round holes joined by narrower channels, metallic straps straddling the top of said standard and fitting in said rabbets, each of said straps having a series of round holes corresponding with the round holes in the grooves beneath, a wooden lever, and two interchangeable collars, each having a hook of less Width than the collars, said collars being placed upon the lever with the hooks relatively reversed upon the same side thereof,and adapted to engage in the opposite series of holes, substantially as specified.

JOSEPH J. ADGATE.

Vitne'sses:

EUGENE NEWMAN, \VM. D. NEILLEY.

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