Utility crane

Details Utility crane Utility crane

1977-05-23

1979-04-24

Oresky, Lawrence J.

Traversing hoists

Overhead

Cable

414680, B60P 100, B60P 312

Patent

active

041507541

ABSTRACT:
A trailerable utility crane having a compound articulated mast to provide variable working configurations and foldable on itself to provide a relatively compact storage configuration as well as an extended length sufficient to load and unload a tow vehicle. Transport wheels for road travel are carried by the mast in a manner that allows the base of the crane to be lowered to the ground automatically with extension of the mast. The mast is supported for azimuthal movement on the base and outriggers for stabilizing the base are safety-interlocked with the azimuthal support.

REFERENCES:
patent: 3570153 (1971-03-01), Guinot
patent: 3788675 (1974-01-01), Wilander
patent: 3794296 (1974-02-01), Hasstedt

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