| Year | 1941 |
| Date | 09-Jan |
| Volume | 84 |
| Issue | 2,070 |
| Page | 37 |
| Category | Improving the Two-Stroke |
| Part | |
| Title | Profitable experiments in I.C. engine design |
| Author | Edgar T.Westbury |
| Notes | Lightweight, use of tension bolts, diagonal section & plan of cylinder secured by long "tension bolts", elimination of cylinder barrel flanges, longer bolts, screwed cylinders, an example of practical design, section through 250 c.c. motor-cycle cylinder |