Wing sail drive system

Details Wing sail drive system Wing sail drive system

1982-09-08

1985-03-26

Blix, Trygve M.

Ships

Spars

Masts and masting

114 90, 114 39, 114103, 114 93, B63H 906

Patent

active

045066191

ABSTRACT:
A hydraulic drive system for a wing sail on a vessel, comprising a rotatable frame at the base of the mast and hydraulic cylinders connected between the frame and the ship's structure to cause rotation of the frame in either direction through a limited angle, and a brake is provided on the frame for transmitting rotation of the frame to the mast when the frame is rotating in a direction that it is desired for the mast to rotate, and a brake is provided for preventing rotation of the mast when the frame rotates in the opposite direction, whereby the mast may be rotated through a desired angle by oscillatory movement of the rotatable frame.

REFERENCES:
patent: 3442113 (1969-05-01), Beckwell
patent: 3580203 (1971-05-01), Martin
patent: 3874619 (1975-04-01), Collins et al.

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