Tower crane

Details Tower crane Tower crane

1974-08-21

1976-02-17

Knowles, Allen N.

Traversing hoists

Overhead

Cable

212 55, 212 59R, 212 69, B66C 2362

Patent

active

039386708

ABSTRACT:
A crane including a base, a tower pivoted thereto, a turntable mounted on top of the tower and a jib with a jib support platform hinged to the rotatable part of the turn table.

REFERENCES:
patent: 2985429 (1961-05-01), LeTourneau
patent: 3259251 (1966-07-01), Stauffer
patent: 3435961 (1969-04-01), Hamson
patent: 3460691 (1969-08-01), Wieger et al.
patent: 3594018 (1971-07-01), Graetz

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