Two-boom crawler crane

Details Two-boom crawler crane Two-boom crawler crane

1989-04-05

1990-08-07

Basinger, Sherman D.

Traversing hoists

Having vertically swinging boom

Protruding laterally from vehicle

212261, 212264, B66C 2326

Patent

active

049460510

ABSTRACT:
A crawler crane made up of a crane frame and body on tracks, a telescoping boom projecting from the body, a fixed-length A-frame boom with rotatable arms, a mechanism for lifting the telescoping boom and a device for extending the telescoping boom.

REFERENCES:
patent: 2413529 (1946-12-01), Swaney
patent: 2698096 (1954-12-01), Hughes
patent: 2733818 (1956-02-01), Gregersen
patent: 4666049 (1987-05-01), Gilmore

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