Marine propulsion – Wind driven motors
Patent
1979-06-18
1981-06-30
Blix, Trygve M.
Marine propulsion
Wind driven motors
114 39, 114103, 114 90, 416132B, B63H 1300
Patent
active
042760330
ABSTRACT:
A sail mounting frame extends upwardly from the hull of a boat and is constructed of a lower section and an upper section which rotate relative to each other about a first axis of rotation which extends generally vertically upwardly with respect to the hull of the boat. An overhung axle is rotatably journaled to the mounting frame upper section for rotation about a second axis corresponding to the longitudinal axis of the axle. A circular convex sail is supported by a correspondingly shaped support frame, which support frame is mounted on the free end of the axle for rotation of the sail about both the first and second axis of rotation. The sail is constructed from a plurality of triangularly shaped, flexible sail segments which are selectively adjustable relative to the sail support frame between a closed position wherein all of the sail segments cooperate to form a substantially continuous circular convex form, and open positions wherein each of the sail segments are disposed at angles of attack relative to the wind to cause the sail segments to react to the winds to thereby rotate the sail about the second axis of rotation to power an auxiliary propulsion system for the boat.
REFERENCES:
patent: 227842 (1880-05-01), Rudolph
patent: 1407373 (1922-02-01), Brymer
patent: 1508847 (1924-09-01), Maki
patent: 2261434 (1941-11-01), Dorr
patent: 2408412 (1948-10-01), Dobbins
patent: 2677344 (1954-05-01), Annis
patent: 3913516 (1975-10-01), Garcia
patent: 3964426 (1976-06-01), Lindsey
Blix Trygve M.
Keen D. W.
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