Telescopic crane for heavy loads

Details Telescopic crane for heavy loads Telescopic crane for heavy loads

1984-08-03

1987-04-28

Basinger, Sherman D.

Traversing hoists

Having means facilitating assembly or disassembly

212180, 212182, 212189, 212211, 212230, 212264, 212265, 212267, B66C 2326, B66C 2344, B66C 2378

Patent

active

046607315

ABSTRACT:
A separate boom vehicle is provided for transporting a telescopic boom, which is adapted to be coupled to a revolving superstructure and to be detached from it for transporting. The boom vehicle is provided in its forward portion with a coupling structure for retaining a telescopically extensible part of the telescopic boom, and is provided in its rear portion with a lifting structure for supporting the boom. The lifting structure is so arranged that when it has been longitudinally aligned with the revolving superstructure, a coupling yoke, provided at the lower end of the telescopic boom, is adapted to be displaced by extending and retracting cylinders along tracks provided on the revolving superstructure to a position in which bearing eyes of the telescopic beam register with bearing bores of the revolving superstructure. The revolving superstructure is provided with a pivot pin for coupling the boom to the revolving superstructure.

REFERENCES:
patent: 3362544 (1968-01-01), Wellnitz
patent: 3734223 (1973-05-01), Anderson
patent: 4053061 (1977-10-01), Lester
patent: 4082191 (1978-04-01), Whittingham

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