- What does a herringbone gear look like?
- American Machinist manufacturing history project.
- MADE IN THE U.S.A.
- WHO'S WHO...
- WHO'S WHO...
- 4
- 7
- Arrow shows the herringbone gears.
- WOODWARD HERRINGBONE TYPE GEARS
- Some of Woodward's largest oil pump gears manufactured for hydraulic governor control systems.
- Massive harringbone gears added to the governor collection.
- American Machinist from 1923.
- A machine shop manufacturing advertisement from 1923.
- 6
- 9