- WOODWARD S NEW TYPE OF OIL PRESSURE WATER WHEEL GOVERNOR GATESHAFT TYPE CIRCA 1917-xx
- Woodward factory photo of their new relay valve oil pressure governor.
- A Woodward Relay Valve Oil Pressure Turbine Water Wheel Governor Application.
- Woodward Oil Pressure Relay Valve Governor Manual.
- Woodward Oil Pressure Relay Valve Governor Manual, circa 1912.
- ELMER WOODWARD'S FIRST HYDRAULIC TURBINE WATER WHEEL GOVERNOR PATENT.
- Kilbourn Dam in the Wisconsin Dells.
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