| 摘要 |
A device is disclosed for launching and hoisting a lifeboat, pickup boat, etc., and for catching people and objects floating in the sea, comprising two booms from which hawsers extend to elongated buoyancy means, which are mutually connected at a mutual distance, and which are connected to said hawsers via spreader yokes, from which ropes extend to the buoyancy means, and bottom members spanning the space between the buoyancy means and being in the water when said buoyancy means are afloat, said ropes passing through guides on the buoyancy means and acting as guides for the buoyancy means when the latter are afloat, said ropes being connected with the respective adjacent bottom members. Said two booms are assembled to a fork-shaped swing crane-boom unit . Booms are telescopic , and hawsers extend from the stationary boom sections to a spreader yoke for one buoyancy means , whereas hawsers extend from the extendable boom sections to a spreader yoke for the second buoyancy means . |
