| 摘要 |
A vessel for performing diving operations by means of a diving bell capable of being raised and lowered from the vessel, includes a docking chamber for the diving bell which is arranged at such a water depth that it will be always positioned below the water level and is surrounded by a dry compartment which is under atmospheric pressure. The docking chamber is in open communication at its bottom with the water and its top portion is provided with coupling means for tight connection to the diving bell when disposed in a water filled space within the docking chamber. |
