Marine derrick arrangement

Details Marine derrick arrangement Marine derrick arrangement

1979-10-11

1982-07-27

Blix, Trygve M.

Traversing hoists

Having counterweight or counterbalancing means

Counterweight movable relative to load support

212190, 212148, 212227, 212262, 414918, B66C 2360, B66C 2352

Patent

active

043413153

ABSTRACT:
Marine derrick having a horizontal turn table supporting a derrick boom, a derrick post and all winches each handling separately a cargo fall, a topping lift wire and guy pendants thereon. A guy winch is located in center portion of the turn table at a level spaced from the turn table with its vertical drive shaft extended downward through an opening provided in the turn table and connected to drive motor located below the deck. The turn table is operatively connected to the drive shaft by a train of gears.

REFERENCES:
patent: 1357150 (1920-10-01), Curtis
patent: 1706441 (1929-03-01), Daughs
patent: 2610527 (1952-09-01), Papay
patent: 2807374 (1957-09-01), McLean
patent: 3477746 (1969-11-01), Watson
patent: 3743223 (1973-07-01), Spellman
patent: 3959608 (1976-05-01), Finlayson et al.

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