Traversing hoists – Having counterweight or counterbalancing means – Counterweight movable relative to load support
Patent
1993-03-02
1994-09-20
Huppert, Michael S.
Traversing hoists
Having counterweight or counterbalancing means
Counterweight movable relative to load support
212189, B66C 2376
Patent
active
053481720
ABSTRACT:
A mobile crane has a triangular wheel arrangement with a steerable front wheel and a frame for carrying an operator and a boom which is adjustable both as to vertical angle and azimuth. Shock absorbing stabilizing arm assemblies extend from either side of the frame, and an adjustable counterweight assembly is pivotally mounted at the rear of the frame, and can be adjusted to its optimum position, depending on the load, by the operator without his having to exert any lifting effort. The crane boom is likewise adjustable as to azimuth and elevation angle without the operator's having to move any heavy weight.
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Brahan Thomas J.
Huppert Michael S.
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