Auxiliary sail system for ships and safety systems for same
AssigneeAlistair Johnson
InventorAlistair JOHNSON
Life of this patent
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Abstract
A ship-mounted auxiliary sail system featuring a plurality of sail units mountable and movable about the ship on a rail system. The sail units can have automatic reefing safety features and/or automatic mast release safety features.
Claims23
A ship-mounted auxiliary sail system comprising:
- a rail system extending about at least a portion of a deck of the ship;
- a plurality of sail units mountable on the rail system and movable along the rail system;
- and
- a plurality of spaced-apart fixed securement points provided on the rail system for fixing the sail units to the hull of the ship for use, each one of the plurality of spaced-apart fixed securement points being configured to receive and secure a corresponding one of the plurality of sail units.
(canceled)
(canceled)
A method of positioning a plurality of sail units at a plurality of spaced-apart fixed securement points for fixing the sail units to a hull of a ship for use as an auxiliary sail system for the ship, the method comprising the steps of:
- (a) loading a first one of the plurality of sail units on a rail system, the rail system extending about at least a portion of a deck of a ship;
- (b) securing the first one of the plurality of sail units to a drive rope;
- (c) using the drive rope to move the first one of the plurality of sail units towards a desired deployment location until the first one of the sail units has moved a predetermined spacing distance;
- (d) loading a second one of the plurality of sail units on the rail system;
- (e) securing the second one of the plurality of sail units to the drive rope;
- (f) using the drive rope to move the second one of the plurality of sail units towards a desired deployment location;
- repeating steps (d) through (f) for successive ones of the plurality of sail units, until the desired number of sail units have been loaded on the rail system and moved to their desired deployment locations;
- and
- securing each one of the sail units at its corresponding fixed securement point.
A method of clearing a plurality of sail units coupled to a plurality of spaced-apart fixed securement points of an auxiliary sail system for a ship from a first side of the ship, the method comprising the steps of:
- (a) advancing a second one of the plurality of sail units on a second side of the ship opposite to the first side to a storage distance from a first one of the plurality of sail units on the second side and securing the second one of the plurality of sail units in a storage configuration;
- (b) advancing a third one of the plurality of sail units on the second side of the ship to a storage distance from the second one of the plurality of sail units and securing the third one of the plurality of sail units in a storage configuration;
- (c) repeating step (b) for successive ones of the plurality of sail units on the second side of the ship until a sufficient portion of the second side of the ship has been cleared;
- (d) using a drive rope to move the plurality of sail units located on the first side of the ship towards the second side of the ship;
- (e) advancing a first one of the plurality of sail units on the first side of the ship to a storage distance from the last one of the plurality of sail units on the second side of the ship and securing the first one of the plurality of sail units from the first side of the ship in a storage configuration;
- and
- (f) securing successive ones of the plurality of sail units from the first side of the ship a storage distance from the preceding one of the plurality of sail units from the first side of the ship in a storage configuration.
(canceled)
Dependencies are inferred from the claim text.