Bottom construction for a ship

Details Bottom construction for a ship Bottom construction for a ship

1986-03-19

1987-10-27

Peters, Jr., Joseph F.

Ships

Ice breakers

B63B 3508

Patent

active

047021870

ABSTRACT:
The invention relates to a ship that is adapted for operating in ice-filled waters and has a general frame form defining a substantially horizontal bottom surface, two side surfaces, a stern and a blow portion that breaks the ice advantageously. The bottom surface comprises one or a greater number of cavities, extending to or located on both sides of the longitudinal symmetry plane of the ship, in which cavity or cavities there are arranged movable sheetlike elements. The sheetlike elements have a first position, in which said elements form a generally continuous part of the bottom surface, and a second position, in which said elements form, below the bottom surface, a substantially vertical wedge-shaped structure that converges in the direction from the stern of the hull towards the bow of the hull. The elements are provided with power units which bring about movement of the elements from one position to another by turning around a swivelling axis arranged in the longitudinal direction of the elements.

REFERENCES:
patent: 3174166 (1965-03-01), Ehrenberg et al.
patent: 4029035 (1977-06-01), German
patent: 4326476 (1982-04-01), Pole
patent: 4436046 (1984-03-01), Braley

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