Home / HISTORICAL WATER POWER ENGINEERING. 624
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- Saving obsolete Woodward governor history.
- GILLESPIE'S PATENTED HYDRAULIC GOVERNOR.
- GILLESPIE'S PATENTED HYDRAULIC GOVERNOR, CIRCA 1866.
- Brad's Vintage Water Wheel Governor Patent Project.
- TESTING OF HORIZONTAL LOWHEAD WATER TURBINES.
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- Vintage machine shop manufacturing history project.
- Thank you Roland for donating all of your vintage Woodward documents from your 38 years of Woodward service.
- 1868 catalogue.
- James Leffel's tombstone.
- James Leffel's tombstone.
- James Leffel's tombstone showing his patented turbine water wheel.
- American Society of Civil Engineers. Transactions paper No. 1503.
- THE AMERICAN MIXED-FLOW TURBINE WATER WHEEL HISTORY.
- The James Leffel gave marker.