Motion pictures, 1940-1949

by Library of Congress. Copyright Office

13. Turning Work Held on a Mandrel. © title, descr., & 2 prints, 13Mar44; MU14591.

14. Using a Steady Rest. © title, descr., & 2 prints, 31Dec43; MU14349.

15. Using a Follower Rest. © title, descr., & 2 prints, 31Dec43; MU14350.

16. Using a Boring Bar Between Centers. © title, descr., & 2 prints, 13Mar44; MU14592.

MACHINE SHOP WORK; operations on the gear hobbing machine. Emerson Yorke Studios, c1945. 1 reel each, 16mm. © Emerson Yorke Studios.

1. Hobbing a Spur Gear: pt. 1, Setting Up the Change Gears. © 1Jun45; MP471.

2. Hobbing a Spur Gear; pt. 2, Setting Up and Hobbing the Work. © 1Jun45; MP472.

3. Hobbing a Square Tooth Spline Shaft. © 1Jun45; MP473.

4. Hobbing a Worm Gear—Infeed Method. © 1Jun45; MP474.

5. Hobbing a Helical Gear, Two Cuts—Non-differential Method. © 1Jun45; MP475.