Unitary oil block

Details Unitary oil block Unitary oil block

1979-05-02

1980-09-16

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Hoisting truck

Single throw lever

151 70, B66F 504

Patent

active

042225485

ABSTRACT:
A unitary multiple purpose oil block for use with and in cooperation in a lifting jack features a rigid block anchored between a pair of side plates comprising a frame adjacent one end. On various faces of the block holes are drilled for mounting the operating mechanisms, namely a hydraulic power cylinder, a pump, a lift-lower control valve and an overload release. Extensions of the holes are drilled to form passages of the hydraulic network with all passages in respective right angular relationship communicating with each other within a central partition between a pair of oil reservoir chambers. The operating mechanisms are separately mounted for purposes of economy of weight, simplicity, easy access and servicing.

REFERENCES:
patent: 2106278 (1938-01-01), Redmer
patent: 4018421 (1977-04-01), Tallman
patent: 4131263 (1978-12-01), John

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