| 摘要 |
1508523 Stringer coupling EXXON PRODUCTION RESEARCH CO 9 April 1976 [14 April 1975 18 March 1976] 14662/76 Heading F2P A pipelaying stringer S and a pipelaying vessel V have a releasable coupling comprises a pair of laterally spaced connectors A on the stringer and a corresponding pair of connections B on the vessel to form two laterally spaced joints J, wherein the two connectors of each joint are formed by a mole member 58 and a female member 34, 36 with tapered mating surfaces which allow each male member to rotate about a rotational point of contact with its associated female member to disconnect it therefrom when the other joint is disconnected, so that the stringer will disconnect automatically when only one connector is connected without damage to the joints. The joints may be aligned to form a hinge permitting the stringer to rotate about a horizontal axis. Each male member, formed by a pin 58, may be shaped such that its tapered portion is within an arc having a radius 88 substantially equal to the diameter of the pin, centred on the rotational point of contact, the female member being shaped to mate with the pin. Locking means may be provided to lock the male and female members into engagement with one another. Guide means 94 may be provided to guide the stringer connector into position. In further embodiments (Figs. 5, 6 and 7, not shown) the pins may be tapered to form conical surfaces or may be stepped cylindrical surfaces. |
