| Year | 1941 |
| Date | 11-Dec |
| Volume | 85 |
| Issue | 2,118 |
| Page | 462 |
| Category | Workshop |
| Part | |
| Title | The Production of Involute Gears and Gear Cutters |
| Author | Ian Bradley |
| Notes | The various parts of a gear tooth, the stages in the making of a cutter, a 32 pitch pinion and a 64 pitvh wheel, the complete gear cutter set up |