Home / Engineering history on Woodward compensating type water wheel governor systems. 18
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- Engineering history from 1919.
- Elmer Woodward and his patented water wheel governor.
- The Woodward size D governor described in the letters.
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- James Leffel & Company letter from April 30th, 1925. Page 2.
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- Woodward Governor Company Shop Order 1010, circa 1905.
- Woodward Governor Company letterhead.
- James Leffel & Company letter from April 30th, 1925.
- James Leffel & Company letter from May 6th, 1925. Page 2.
- James Leffel & Company letter from May 6th, 1925.
- Woodward Governor Company Shop Order 729, circa 1904.
- Woodward size D governor for the McCord Company, circa 1917.