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Elmer E. Woodward's state-of-the-art oil pressure relay valve water wheel governor patented in 1912.

56873428f1cc8ec34853f014b03d8a4b.jpg Data from Water Power Engineering, circa 1908.ThumbnailsThe Woodward Governor Factory on Mill Street in the Water Power District in Rockford, Illinois(1910-1941).Data from Water Power Engineering, circa 1908.ThumbnailsThe Woodward Governor Factory on Mill Street in the Water Power District in Rockford, Illinois(1910-1941).Data from Water Power Engineering, circa 1908.ThumbnailsThe Woodward Governor Factory on Mill Street in the Water Power District in Rockford, Illinois(1910-1941).Data from Water Power Engineering, circa 1908.ThumbnailsThe Woodward Governor Factory on Mill Street in the Water Power District in Rockford, Illinois(1910-1941).

This new type of oil pressure relay valve water wheel governor was filed for a patented by Elmer E. Woodward under the patent number 1,106,434 in 1912 and granted in 1914.

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