Implements or apparatus for applying pushing or pulling force – Single throw lever – Mechanically actuated
Patent
1975-05-08
1977-05-24
Smith, Al Lawrence
Implements or apparatus for applying pushing or pulling force
Single throw lever
Mechanically actuated
B66F 312
Patent
active
040250547
ABSTRACT:
A pantograph jack having two pairs of arms includes gear teeth portions on one end of each of the arms. The gear teeth portions are formed on flange portions of the one end of each of the arms, and the flange portions are formed integrally with the arms each extending at a right angle therefrom.
REFERENCES:
patent: 1714464 (1929-05-01), Merriman
patent: 2580829 (1952-01-01), Peck
Aisin Seiki Kabushiki Kaisha
Smith Al Lawrence
Watson Robert C.
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