| Year | 1933 |
| Date | 20-Jul |
| Volume | 69 |
| Issue | 1,680 |
| Page | 58 |
| Category | Workshop Topics |
| Part | |
| Title | Cutting a Pair of Spiral Gears |
| Author | John Latta |
| Notes | Hobbing the worm wheel for the milling spindle, flycutting the worm wheel, driving the milling spindle by an electric drill, cutting the teeth in the camshaft gear |