Hydraulic jacks

Details Hydraulic jacks Hydraulic jacks

1977-10-13

1978-09-12

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Step-by-step traveling bar

Pawl actuated

B66F 108

Patent

active

041132343

ABSTRACT:
A hydraulic jack support having a pair of telescopic members, one being a base and the other a bridge movable on the base, and an adjustable platform for supporting a jack engaging the base but adjustable thereon in height whereby the lifting jack is positioned on to the platform to lift the bridge in relation to the said platform and whereby the said platform can be raised for a multi-stage lift.

REFERENCES:
patent: 2205691 (1940-06-01), Johnson
patent: 2527428 (1950-10-01), Kemerer
patent: 2657009 (1953-10-01), Neis et al.
patent: 3881687 (1975-05-01), Johansson

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