| 摘要 |
1,246,169. Transferring liquid cargoes. SINGLE BUOY MOORING Inc. 22 Sept., 1969 [14 Oct., 1968], No. 46561/69. Heading B8E. [Also in Division F2] A swivel for a buoy for simultaneously transferring at least two fluids to or from a vessel comprises a swivel body 19 with at least two duet ends 23 (30), (Fig. 3, not shown), extending vertically upwards and a swivel head 14 with correspondingly downwardly extending duct ends 40, (49) the co-operating ends meeting at opposed horizontal faces and one of each pair of faces containing a sealing ring in a groove. The head 14 is attached to the inner race of a bearing adapted to take both radial and axial loads, the outer race being secured to the body 19 so that the only method of tightening the head on to the body is via the bearing. In the embodiment shown a channel 72 is provided between two sealing rings at the joint face of the inner duct so that any leakage from one of the ducts will not contaminate fluid in the other. Leakage from the outer duct will pass through a clearance (79) and drain via a pipe (78) so as not to contaminate the bearing. Examination of the drain holes associated with channel 72 and clearance (79) will indicate the presence of a leak. |
