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US Patent: 130,918
Improvement in apparatus for closing and operating annular series of water-wheel gates
Patentee: John W. Hill (exact or similar names) - Dayton, OH USPTO Classifications: 251/234 Tool Categories: propulsion and energy : water power : water wheels : turbine water wheels Assignees: Barnett, Herrman & Co. - Dayton, OH Manufacturer: Herrman & Herchelrode Mfg. Co. - Dayton, OH Barnett, Herrman & Co. - Dayton, OH Witnesses: M. L. Mouser George M. Young	Patent Dates: Granted: Aug. 27, 1872 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Herrman & Herchelrode Mfg. Co.

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