| Year | 1945 |
| Date | 28-Jun |
| Volume | 92 |
| Issue | 2,303 |
| Page | 619 |
| Category | Internal Combustion |
| Part | |
| Title | Experiments in Four-stroke Engine Design. A review of several years' efforts to improve the breed of model petrol engines for speed-boat propulsion and other purposes |
| Author | Edgar T.Westbury |
| Notes | The "M.E." road roller engine by J.Ripper, Mr Bradley's "1831" engine, camshaft side, castings for "Apex Minor" engine (Headingley Motor and Engineering Co., Leeds) |