Barge-carrying waterborne vessel for flotation loading and unloa

Details Barge-carrying waterborne vessel for flotation loading and unloa Barge-carrying waterborne vessel for flotation loading and unloa

1977-10-14

1979-04-03

Halvosa, George E. A.

Ships

Mother ship, floating landing platform, and harbor

Vessel carrier

B63B 3540

Patent

active

041471237

ABSTRACT:
A transportation method and a barge-carrying waterborne vessel in which there is flotation loading and unloading, with the loading being assisted by water flow from the gate into the flooded vessel and toward the opposite end of the vessel from the gate. For unloading, the water flows in the opposite direction, toward the gate. Preferably, loading is through a gate in the stern while water is being pumped out from a sump at the forward end of a hold. When barges are fully loaded into the hold, the stern gate is closed and the hold may be dried out; then the barges are secured in place against movement relative to the vessel. There may be more than one hold having at least one longitudinal bulkhead dividing the holds. There may be either a separate gate for each hold or a transfer system in which each longitudinal bulkhead has an archway providing a passageway joining adjacent holds. During lateral transfer water jets may play against the sides of the barge to cause lateral movement. Adjacent the gate there are preferably rollers, some of which are powered, which engage the sides of each barge and move it into or out from the gate and the hold. Novel barge retention systems are provided requiring relatively few, if any, powered devices.

REFERENCES:
patent: 2605064 (1952-07-01), Davis
patent: 3939790 (1976-02-01), Varges et al.

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