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- LOMBARD OIL PRESSURE GOVERNOR Ca 1904
- Type of water wheel governor in the 1931 letter to Woodward.
- LOMBARD OIL PRESSURE GOVERNOR 2
- Woodward at 660 Race Street in the RKFD water power district
- Elmer E. Woodward's new water wheel governor from three patents.
- Lombard Governor Company
- The Engineering Record 1903 2
- NEW WOODWARD OIL PRESSURE GATE SHAFT TYPE WATER WHEEL TURBINE GOVERNOR Ca 1912
- Close up of the governor application.
- The Engineering Record 1903
- Modern Machinery 1903 2
- Woodward horizontal type F mechanical compensating governor Ca 1904
- OldWoodward Blueprint number 3881.
- SAMSON TURBINE WATER WHEEL HISTORY.
- NIAGARA FALLS POWER!