A trawling vessel with a lock chamber

Details A trawling vessel with a lock chamber A trawling vessel with a lock chamber

B - Operations, Transporting

63

B

B63B 35/16 (2006.01) A01K 73/02 (2006.01) B63B 35/18 (2006.01) B63B 35/26 (2006.01)

Patent

CA 2474034

The invention relates to a trawling vessel for use with a trawl net (5) for catching marine bio-resources, with a trawl sack (3) attached aft on a trawl net (5) for keeping the catch, said vessel comprising lines (51, 61) for towing and hauling said trawl net (5) and trawl drums (6) for hauling said trawl net (5), characterized by a lock chamber (1) in a stern (21) of said vessel, said lock chamber (1) having a main portion of its volume below said design water line of said vessel, said lock chamber (1) being arranged for hauling said trawl sack (3) with the catch from the sea, through a sluiceway (2) in said stern (21), and said lock chamber (1) being arranged for discharge of said trawl sack (3) and for temporarily keeping said catch; and a trunk channel (16, 12) leading up from said lock chamber (1) and being arranged so that said trawl sack (3), in a generally discharged state, may be hauled up through said trunk channel (16, 12) to a deck (24), thereby leaving said catch in said lock chamber (1).

La présente invention concerne un navire de chalutage à utiliser avec un chalut (5) afin de capturer des ressources marines biologiques. Ce navire comprend un sac (3) qui est attaché à l'arrière sur un chalut (5) afin de conserver la prise, ainsi que des lignes (51, 61) conçues pour remorquer et haler le chalut (5) et des tambours (6) conçus pour haler le chalut (5). Ce navire de chalutage est caractérisé par un sas d'écluse (1) dans une poupe (21) du navire, dont une majeure partie du volume se trouve en-dessous de la ligne de flottaison de calcul du navire. Ce sas d'écluse (1) est conçu pour haler le sac (3) avec la prise issue de la mer, à travers une vanne de vidange (2) située dans la poupe (21), et pour décharger ce sac (3) et conserver temporairement la prise. Le navire de chalutage est également caractérisé par un canal de puits (16, 12) menant au sas d'écluse (1) et conçu de façon à permettre le halage du sac (3), généralement à l'état déchargé, à travers ce canal de puits (16, 12), jusqu'à un pont (24), laissant la prise dans le sas d'écluse (1).

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