Vehicle transported selectively elevatable nacelle supporting li

Details Vehicle transported selectively elevatable nacelle supporting li Vehicle transported selectively elevatable nacelle supporting li

1983-04-25

1987-05-26

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Means maintaining platform level on angularly movable support

Swingable support

B66F 1104

Patent

active

046677712

ABSTRACT:
A nacelle supporting lifting crane comprising four articulated lever stages, including a first lever stage articulated to a bracket integral with a thrust block rotatable in opposed directions around its vertical axis with respect to a fixed base supported by four jacks. Said base may be mounted on the platform of a truck for transport of the crane. The end of an uppermost lever stage is articulated to a bracket supporting a nacelle for lifting things and/or persons.

REFERENCES:
patent: 3378103 (1968-04-01), Zweight
patent: 3470980 (1969-10-01), Irwin
patent: 3516512 (1970-06-01), Kupke
patent: 3605941 (1972-01-01), Edwards
patent: 3708037 (1973-01-01), Tranchero
patent: 4053075 (1977-10-01), Stedman

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