Car jack

Details Car jack Car jack

1979-11-28

1981-09-15

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Single throw lever

Mechanically actuated

B66F 312

Patent

active

042893003

ABSTRACT:
There is provided a car jack comprising a column attached at its bottom to a base, and a load-carrying arm pivoted to the column and movable by a screw spindle. The screw spindle is pivotably supported by a nut at the top of the column and by an abutment of the load-carrying arm. The arm and the column are formed from metal sections of U-shaped cross-section with the edges of the side limbs outwardly bent. Each of the outwardly bent parts is formed as a bead extending along the entire length of the side limb with its edge disposed in the plane of the internal flat side of the respective limb.

REFERENCES:
patent: 1475864 (1923-11-01), Perry et al.
patent: 2487553 (1949-11-01), Hunz
patent: 3163925 (1965-01-01), Ulm
patent: 3317187 (1967-05-01), Steppon
patent: 3989225 (1976-11-01), Keilholz

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