Welcome to the Woodward Governor Company unofficial History Site

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IMPULSE TURBINES BY SMITH. BULLETIN 138.

IMPULSE TURBINES BY SMITH_ BULLETIN 138-xx.jpg James Leffel & Company advertisement.ThumbnailsElmer Woodward's new oil pressure relay valve water wheel governor ca 1912. James Leffel & Company advertisement.ThumbnailsElmer Woodward's new oil pressure relay valve water wheel governor ca 1912. James Leffel & Company advertisement.ThumbnailsElmer Woodward's new oil pressure relay valve water wheel governor ca 1912. James Leffel & Company advertisement.ThumbnailsElmer Woodward's new oil pressure relay valve water wheel governor ca 1912.