Ships – Vessel raising and docking – Floating dry docks
Patent
1975-02-03
1976-08-24
Blix, Trygve M.
Ships
Vessel raising and docking
Floating dry docks
B63C 102
Patent
active
039760227
ABSTRACT:
The present disclosure is directed to lifting boats and barges within a dry dock by means of compressed air. The air is conducted from compressor through hose lines to open bottomed compartments of the floating dry dock and controlled by remote actuated valves whereby either through adding air or venting air from the dock compartments the dock may be trimmed fore and aft as well as athwart ship to assure registry with a yard marine railway system. Support legs guide the up and down movement of the dock to assure alignment with the marine railway so that the vessel within the dock may be transferred by a dolly and rail system to the yard rail system. The floating dry dock upon achieving proper elevation releases a certain amount of air such that some negative buoyancy is attained and the dry dock and its within vessel are supported on the support legs which will prevent movement of the dry dock while transferring the vessel to shore and which will also prevent movement of the dry dock by wave action from passing vessels.
REFERENCES:
patent: 3276211 (1966-10-01), Drake
patent: 3332248 (1967-07-01), Burnett
patent: R27090 (1971-03-01), Rutter
Blix Trygve M.
O'Connor Gregory W.
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