| Year | 1930 |
| Date | 21-Aug |
| Volume | 63 |
| Issue | 1,528 |
| Page | 175 |
| Category | Internal Combustion |
| Part | |
| Title | Crankshafts and Crankpins for Small Petrol Engines |
| Author | A.C.Abel |
| Notes | Four types of crankpin, method of undercutting, unconventional method of crankpin location |