Car jacks

Details Car jacks Car jacks

1978-11-13

1980-05-20

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Screw

Special engaging feature

254DIG1, B66F 336

Patent

active

042035775

ABSTRACT:
A car jack comprises a stand column supported on a base, a carrier arm having pivotally mounted thereon an insertion shaft, and a threaded spindle mounted pivotally but axially immovably on the stand column. A threaded nut is guided on the spindle for raising and lowering the carrier arm, which bears against a surface of the stand column or threaded nut when raised beyond a certain lifting position. The base is arranged, when the insertion shaft is inserted into a socket of a vehicle body, to bear on a supporting surface at the side which faces away from the carrier arm at a radial distance relative to the axis of the stand column.

REFERENCES:
patent: 789071 (1905-05-01), Schroer
patent: 1192611 (1916-07-01), Field
patent: 1519946 (1924-12-01), Williams

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