| Year | 1942 |
| Date | 24-Dec |
| Volume | 87 |
| Issue | 2,172 |
| Page | 614 |
| Category | Electrical |
| Part | |
| Title | A Self-Generating Electric Torch |
| Author | "Artificer" |
| Notes | Details of hand lever, cutting the slot in upper end of hand lever, arrangement of lever feed slotting gear, spring for hand lever, the completed gear arrangement |