Windmill with automatic feathering control and storm protection

Details Windmill with automatic feathering control and storm protection Windmill with automatic feathering control and storm protection

1976-09-28

1980-05-20

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Sustained ancillary movement of rotary working member

Responsive to gravity or working fluid force

416 41, F03D 706

Patent

active

042037077

ABSTRACT:
A windmill of the vertical axis type having a plurality of circumferentially-spaced rotatably-mounted vanes wherein means are provided for controlling the feathering of the vanes so that, upon feathering they rotate in a direction opposite to that rotation of the windmill assembly, wherein means are provided to assure that the entire assembly heads up into the wind, and wherein means are provided for disengaging of the entire vane assembly when the wind velocity reaches a predetermined value.

REFERENCES:
patent: 321292 (1885-06-01), Hatfill
patent: 410361 (1889-09-01), Harbaugh
patent: 697403 (1902-04-01), Groombridge
patent: 866836 (1907-09-01), Bell
patent: 1419000 (1922-06-01), Wilson
patent: 1626313 (1927-04-01), Tuckey
patent: 2247929 (1941-07-01), Terhune
patent: 2406268 (1946-08-01), Terhune
patent: 2457514 (1948-12-01), Wood

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