US1796084A - Jack - Google Patents

Description

Marh 10, 1931. G. A.-coLL1soN 1,796,934

JACK

Filed April 26. 1929 INVENTOR ATTORNEY 550%? A. C01. ASON' Patented Mar. 10, I931 UNITED STATES GEORGE A. COLLISON, OF PORT CHESTER, NEW YORK JACK Application filed April 26,

The present invention has for an object to provide an improved apparatus for removing parts from exhausted storage batteries and for similar uses.

The operation of removing parts from exhausted storage batteries for the purposes of replacement is fraught with difliculties due to the requirement for the use of considerable force in a difiicult position. The present invention provides an apparatus of the jack type which is especially designed for use in this operation.

The nature and objects of the invention will be better understood from a description of a particular illustrative embodiment thereof for the purpose of which description reference should be had to the accompanying drawing forming a part hereof and in which Figure l is a view in side elevation of an 20. apparatus embodying the invention,

Fig. 2 is a sectional view of the extensible fulcrum member taken on the line IIII of Fig. 3, and

Fig. 3 is a side view of said fulcrum member.

The apparatus shown is a tool designed to grip a part such as a terminal to be removed from an exhausted storage battery and to pull the same therefrom. As shown, the tool comprises an operating lever 5 pivoted at 6 to an extensible fulcrum member or post comprising telescoping members 7 and 8 together with gripping tongs connected to the end of the lever at 10 and comprising jaws 11 and links 12.

The outer sleeve 8 of the extensible post is provided with a foot piece 15 adapted to suitably engage the casing of a battery shown in dot and dash lines at 16. The telescoping members are arranged for sufficient longitudinal movement to facilitate the removal of worn parts of the battery but the relative movement is preferably limited by pin 17 secured to the inner member 7 and projecting through a slot 18 of the outer sleeve. In operation the inner part 7 is held against downward movement in the sleeve 8 by a ratchet mechanism which is shown as consisting of a loose washer 19 slightly larger than the member 7 to slide freely thereon,

1929. Serial No. 358,228.

but engaging an upstanding lug 20 of the sleeve 8 which thus constitutes a diagonal seat to provide a gripping of the washer about the member 7 which will prevent free telescoping movement. By this arrangement the fulcrum member can be easily extended step by step and effectively serves its purpose for the operative stroke of the operating lever 5.

The gripping tongs are designed to grip a part intended to be removed, as indicated in dot and dash lines at 22, with an automatic tightening grip. As shown, the two pivoted jaws 11 are connected to the end of the lever 5 by links 12 arranged at such an angle that during the lifting operation the grip on the work will be automatically tightened.

In operation the jaws are applied to the part 22 and the extensible fulcrum member adjusted to suitable length for engaging the battery casing. The lever 5 is then operated to pull the part 22 upwardly. Then the lever has been operated to thus lift the part, the gripping tongs are held stationary while the lever is lifted to raise the fulcrum 6 and extend the extensible fulcrum member, thus to position the fulcrum 6 for a second operative lifting stroke. This operation is repeated until the part is entirely removed.

The foregoing particular description is illustrative merely and is not intended as defining the limits of the invention.

I claim:

1. An apparatus for removing parts from exhausted batteries comprising an extensible fulcrum member for engagement with the battery casing, manually releasable means for holding said member in any adjusted position, a lever fulcrumed to said member and gripping tongs connected to said lever.

2. An apparatus for removing parts from exhausted batteries comprising gripping tongs, an operating lever to which said tongs are connected, said lever having a handle at one end, an extensible post to which said lever is fulcrumed and manually releasable ratchet means for holding said extensible post in adjusted relation.

3. An apparatus for removing parts from exhausted batteries comprising automatic gripping tongs, an operating lever to which said tongs are connected, an extensible post for engagement with the battery casing comprising telescoping members and a Washer loosely fitting the inner member and engageable on one side by a seat on the outer member to hold said members in extended relation.

In testimony whereof; I have signed my name to this specification this 23rd day of April, 7 1929.

GEORGE A. COLLISON. 1 i

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