Home / HISTORICAL WATER POWER ENGINEERING. 73
Creation date / 2017 / July
- Elmer E. Woodward's state-of-the-art oil pressure relay valve water wheel governor patented in 1912.
- Data from Water Power Engineering, circa 1908.
- Another vintage Elmer Woodward ad from 1905.
- Elmer E. Woodward's state-of-the-art mechanical compensating type water wheel governor.
- Elmer E. Woodward's new water wheel governor from three patents.
- Data from Water Power Engineering, circa 1908.
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- WOODWARD GATE SHAFT TYPE WATER WHEEL GOVERNOR HISTORY.