| Year | 1952 |
| Date | 27-Mar |
| Volume | 106 |
| Issue | 2,653 |
| Page | 404 |
| Category | Oscillation |
| Part | |
| Title | Oscillating Cylinders |
| Author | H.H.Nicholls |
| Notes | Oil pump, another form, section of model boat engine with conical port face, servo-cylinder, good lubrication, a possible solution, suggested construction of model boat engine |