Fluid reaction surfaces (i.e. – impellers) – Articulated – resiliently mounted or self-shifting impeller... – Resilient bias or mount
Patent
1979-01-15
1981-03-24
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Articulated, resiliently mounted or self-shifting impeller...
Resilient bias or mount
416202, F03D 704
Patent
active
042577403
ABSTRACT:
An improved speed governor is disclosed for feathering a plurality of blades on a windmill. Each blade is attached through a rotatable shaft to a support plate which in turn drives an output shaft. Each blade shaft is connected through a control rod to a governor hub which is free to slide axially on the output shaft. A spring biases the governor hub to a position wherein the blades assume a desired initial pitch. As the speed developed by the windmill increases, the force on the blades is applied through the control rods to move the governor hub against the spring. As the governor hub moves the control rods simultaneously and equally change the pitch of the blades to limit the maximum speed of the windmill.
REFERENCES:
patent: 216244 (1879-06-01), Ward
patent: 243586 (1881-06-01), Logan et al.
patent: 857376 (1907-06-01), Axelstrom
patent: 1533467 (1925-04-01), Sargent
patent: 1633842 (1927-06-01), Bishop
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patent: 2050142 (1936-08-01), White
patent: 2054383 (1936-09-01), Ludewig
patent: 2516576 (1950-07-01), Jacobs
patent: 4029434 (1977-06-01), Kenney
Powell Jr. Everette A.
Schaub Charles R.
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