Ships – Scows – Dumping and unloading
Patent
1981-03-31
1983-10-18
Basinger, Sherman D.
Ships
Scows
Dumping and unloading
91360, B63B 3530
Patent
active
044099169
ABSTRACT:
The invention relates to a split hopper vessel consisting of two halves, which can swing about a horizontal longitudinal axis between a closed position in which the hold formed by the two halves is closed and an open position in which the two halves are moved apart. The two halves are interconnected by hydraulic cylinders which can perform or assist the opening and/or closing of the vessel. The hydraulic cylinders under the control of non-return valves (10,11,53) which block the closed position and which by a control pressure system can open to allow the opening of the vessel. The flow of liquid from one side of each cylinder to the other side can be shortened, and safety structure ensures that all cylinders operate simultaneously, all non-return valves (10,11) having a pressure-activated switch, which when activated opens the non-return valve G.sub.1 in the line connecting both sides of each cylinder. The hydraulic circuit can consists of a high pressure section and a low pressure section which can be put into operation in dependence on what the closing or opening operation requires.
REFERENCES:
patent: 2738770 (1956-03-01), Granzow
patent: 3401661 (1968-09-01), Van Der Werff
patent: 3404650 (1968-10-01), Miller
patent: 3631827 (1972-01-01), Van Der Werff
patent: 4094228 (1978-06-01), Schexnayder
patent: 4261275 (1981-04-01), Demmers
Avila Stephen P.
Basinger Sherman D.
IHC Holland N.V.
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