| 摘要 |
A dual buoy rescue device is provided for locating and retrieving sunken vessels. An essentially cylindrical anchor buoy having a tapered end is secured to the vessel by buoy orientation device comprising a housing mounted to the vessel, a rotatable shaft mounted within the housing, and a shaft extension secured to the anchor buoy. The buoy orientation device is adapted to allow the anchor buoy to float freely above the vessel when the device is in operation, regardless of the orientation of the vessel or the manner in which it sinks. Spaced circumferentially about the anchor buoy and projecting angularly outwardly therefrom are a plurality of spring-loaded fingers which are adapted to move inwardly into the buoy yet remain in their outwardly projected position when subjected to a force directed towards the tapered end of the buoy. A marker buoy adapted to float freely on the surface of the water is connected to the anchor buoy by a long pilot line. The sunken vessel is retrieved by guiding a retrieving ring with a cable or chain attached thereto down along the pilot line over the anchor buoy and the projecting fingers. The ring is then lifted towards the surface by the cable or chain so as to engage the ends of the projecting fingers which maintain their outwardly projected position. The vessel is then towed to the surface by the chain or cable attached to the retrieving ring.
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