B - Operations – Transporting – 63 – B
Patent
B - Operations, Transporting
63
B
B63B 35/14 (2006.01)
Patent
CA 2307650
The invention concerns a central hauling pool (1) e.g. for a fishing vessel, with the central hauling pool (1) constituting a generally vertical main tube (2) through the vessel, with a free lower opening or mouth (8) towards the sea and a free upper opening (4) towards the atmosphere. The novel and characterizing feature of the invention is that the upper part of the main tube (2) has a tube transition (5) constituting a large relative widening of the cross section area below the water line in the main tube (2) to an upper tube part (3). The effect of such a widening of the upper part of the central hauling pool is that the oscillations of the water surface are damped considerably as compared to the heave of the ship and the waves of the sea.
L'invention se rapporte à un bassin central (1) de retenue, destiné par exemple à un bateau de pêche et constituant un tube principal (2), généralement vertical, traversant le bateau et présentant une ouverture inférieure libre ou bouche (8) orientée vers la mer et une ouverture supérieure libre (4) orientée vers l'atmosphère. Cette invention se caractérise en ce que la partie supérieure du tube principal (2) possède une zone de transition (5) constituant un élargissement relativement important, sous la ligne de flottaison, de la section transversale du tube principal (2) jusqu'à une partie supérieure (3) du tube. L'effet de cet élargissement de la partie supérieure du bassin central de retenue est que les oscillations de la surface de l'eau sont considérablement amorties en comparaison de ce qu'elles seraient sinon lors des virements du bateau et en comparaison de la hauteur des vagues de la mer.
Enerhaug Birger
Loland Geir
Borden Ladner Gervais Llp
Fiskerstrand Verft As
Norsk Marinteknisk Forskningsinstitutt
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