| PROPULSION | |
| Of wheeled vehicles by hand or foot: kinds of mechanisms; construction of propulsion cranks or levers | 1/00; 3/00, 5/00 |
| Of single-track vehicles by motor, characterised by position of engine | 7/00 |
| Of sledges or the like | 27/00 |
| Of wheeled vehicles or sledges, by ground-engaging means not otherwise provided for | 29/00 |
| TRANSMISSIONS | |
| Characterised by rigid mechanical parts thereof | |
| chain or belt; toothed or friction wheel; friction roller | 9/00; 11/00; 13/00 |
| crankshaft or coupling- rods; rotary shaft | 15/00; 17/00 |
| Characterised by non-mechanical or non-rigid parts thereof | 19/00, 21/00, 23/00 |
| Gearing speed-change actuators | 25/00 |