Hydraulic lift perfected for the lifting and the handling of hea

Implements or apparatus for applying pushing or pulling force – Antifriction means for cable pulling drum

Patent

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Details

B66F 324

Patent

active

048862444

ABSTRACT:
This jack comprises a body of a jack mounted to allow the jack to slide and sealed on a guiding column associated at a supporting plate at ground level. It comprises two lifting zones: on the one hand by its upper part, and on the other hand, by its lower ledge, guided on this column and associated at the body of the jack. This jack body is arranged in its back part with a housing forming a reservoir and protecting the pumping means of functioning. The pump body receives a pump piston joined at the operating lever. The body of the pump receives an intake valve emerging in the reservoir. The intake valve [25] is set out angularly oriented in a perpendicular plane at the median longitudinal plane of the jack and guided toward the bottom, being also emerged when the jack is utilized in horizontal position. One method of lining up the intake valve's position is set out laterally on the side of the housing opposite this valve.

REFERENCES:
patent: 87453 (1869-03-01), Ryan
patent: 2412414 (1946-12-01), Mueller
patent: 2654568 (1953-10-01), Pine
patent: 3081066 (1963-03-01), Murawski
patent: 3370421 (1968-02-01), Piper
patent: 4021018 (1977-05-01), Dasan
patent: 4174095 (1979-11-01), Chipman
patent: 4270733 (1981-06-01), DePue
patent: 4783053 (1988-11-01), Yimiyahu et al.

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