| Year | 1936 |
| Date | 03-Dec |
| Volume | 75 |
| Issue | 1,856 |
| Page | 552 |
| Category | Model Marine Notes |
| Part | |
| Title | "Universal" engine |
| Author | The Spectator |
| Notes | Suggested layout of pumps and gears, gears, worm gear for the oil pump, sketch showing layout for hobbing worm-wheels, hobbing wormwheel in the lathe, worm wheel blank, worm, spur gear and boss, photos, simple flash steam boiler construction |