| Year | 1947 |
| Date | 13-Feb |
| Volume | 96 |
| Issue | 2,388 |
| Page | 231 |
| Category | Workshop |
| Part | |
| Title | Couplings |
| Author | Old Gaumless |
| Notes | Oldham's concentre coupling, slipping coupling, shear pin couplings, differential coupling, flanged coupling with removable disc, claw coupling, expansion coupling, long boss coupling (illustrations by courtesy of Messrs Crofts (Engineers) Ltd.) |