| Year | 1935 |
| Date | 10-Oct |
| Volume | 73 |
| Issue | 1,796 |
| Page | 357 |
| Category | Model Marine Notes |
| Part | 3 |
| Title | Suggestions for Improving Flash Steam Plants. Valve gears for High Efficiency Engines. |
| Author | Edgar T.Westbury |
| Notes | Horizontal rotary valves, A.W.Cockman's "Ifit IV, oscillating or "semi-rotary" valves, poppet valves, the uniflow system |