Tower crane

Details Tower crane Tower crane

1981-04-02

1983-07-12

Blix, Trygve M.

Traversing hoists

Having horizontally swinging boom or bridge

Having trolley thereon

212228, 212257, 212267, B66C 2364

Patent

active

043925740

ABSTRACT:
A first cable portion runs from the crab over a pulley at the point of the jib point part to the winch on the foot part. A second cable portion runs from the crab over a pulley at the end lying on the pylon side, of the jib foot part, over a pulley mounted on the end removed from the pylon, of said jib foot part, round two pulleys on the end facing the pylon of the jib point part, over a pulley at the end removed from the pylon, of the jib foot part to the winch.

REFERENCES:
patent: 3154025 (1964-10-01), Worthington
patent: 3249236 (1966-05-01), Kummerman

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