Pantagraph type jack

Details Pantagraph type jack Pantagraph type jack

1983-05-11

1985-04-09

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Single throw lever

Mechanically actuated

411433, B66F 308

Patent

active

045097240

ABSTRACT:
Herein disclosed is a pantagraph type jack in which one of the support portions for supporting an actuating bolt forms a bolt-receiving nut. This bolt-receiving nut is equipped with a dump nut which is composed of a tapered bore and nut segments, and an actuating member which is composed of an actuating ring and a sleeve formed with openings, so that the turning operation of the actuating bolt can be omitted.

REFERENCES:
patent: 236239 (1881-01-01), Morris
patent: 1683912 (1928-09-01), Neblett
patent: 1774926 (1930-09-01), Kruse
patent: 2705983 (1955-04-01), Guadugna
patent: 4071158 (1978-01-01), Maheu
patent: 4092012 (1978-05-01), Ishigami
patent: 4363164 (1982-12-01), Okada

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