| Year | 1942 |
| Date | 17-Sep |
| Volume | 87 |
| Issue | 2,158 |
| Page | 273 |
| Category | Locomotive |
| Part | |
| Title | 1831. A 3 1/2in. Gauge I.C. Engine-driven Locomotive |
| Author | Edgar T.Westbury |
| Notes | Cutting the transmission worm gearing. Underside of worm wheel generating fixture, a universal device, ratio of worm wheel and worm, lathe set-up for cutting worm wheel, change wheel spindle, transmission shaft |