| Year | 1954 |
| Date | 14-Jan |
| Volume | 110 |
| Issue | 2,747 |
| Page | 32 |
| Category | Talking about Steam- |
| Part | 23 |
| Title | Expansion Valve Gears |
| Author | W.J.Hughes |
| Notes | Meyer valve-gear, setting the eccentrics, dimensions, expansion-valve, Rider valve-gear, worked by the governor, a double slide-valve, Hartnell's automatic expansion gear |