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Elmer Woodward's patented hydraulic gate shaft type turbine water wheel governor from 1921.

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From Elmer Woodward's 1912 patent number 1,106,434.

Elmer Woodward's patent for the first hydraulic Woodward Water Wheel governor.

Elmer Woodward's new hydraulic governor developed and patented in 1912.

Posted on: Friday 20 January 2023
Albums: Historical Hydroelectric Power Plant Equipment Engineering. / Historical Elmer Woodward Oil Pressure Water Wheel Governor information.
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