| 摘要 |
The invention relates to a hoist having upper and lower hollow members (14, 12) which are arranged so that the lower members (12) remain stationary whilst the upper members (14) move upwardly. A deck (32) is attached to the upper member and is arranged to hoist a load. The movement of the upper members (14) is under the influence of pressurised fluid such as a mains water supply fed through conduits (24) into the lower members (12). |
