- Woodward governor drawing of a type F governor from shop order number 1845. Serial Number 2566, circa 1909.
- Woodward governor drawing of a type F governor from shop order number 1845. Serial Number 2566, circa 1909.
- Woodward history is fun!
- Irving Governor1
- Irving Governor Closeup1
- Irving Governor Droop Setting
- Irving Governor
- Irving Generator Info Sheet
- Bulletin No 1-A 19
- Bulletin No 1-A
- elevator-governor
- Vintage Woodward gate shaft governor updated with newer control components