| Year | 1952 |
| Date | 25-Sep |
| Volume | 107 |
| Issue | 2,679 |
| Page | 397 |
| Category | Workshop |
| Part | |
| Title | A Complete Flexible Drive Unit |
| Author | J.B.Clegg |
| Notes | Polishing with wire brush, drilling and grinding head, spindle and drive coupling, sectional assembly, holder, drive shaft, the drive unit, sectional arrangement of countershaft, plan of drive |