Implements or apparatus for applying pushing or pulling force – Hoisting truck – Single throw lever
Patent
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
Norco Industries Inc.
Watson Robert C.
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