Implements or apparatus for applying pushing or pulling force – Hoisting truck – Single throw lever
Patent
1988-08-15
1990-02-13
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Hoisting truck
Single throw lever
254124, 254134, B60P 148
Patent
active
048999857
ABSTRACT:
A castered, low-profile, hydraulic lift assembly including a pivoting lift arm supporting a plurality of detachable transition arms and lift heads. Slip couplers, including linch pins and set screws mating with the arms and lift heads, adjustably position the proper head in overlying or underlying relation to the workpiece. The lift heads, which include workpiece securing hooks, support yokes, chains and support harnesses, slip mount to a slotted end of the outermost arm.
REFERENCES:
patent: 3797675 (1974-03-01), Moore
patent: 4118010 (1978-10-01), Hanscom
patent: 4123038 (1978-10-01), Meyers
patent: 4669703 (1987-06-01), Hawkins et al.
Tschida Douglas L.
Watson Robert C.
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