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1. AU2016262983 - Sailing vessel

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[ EN ]
CLAIMS:
1.          A sailing vessel having a hull, a mast, a keel extending from the underside of the hull and a keel canting mechanism for varying the angle of the keel about an axis extending longitudinally of the sailing vessel; the keel canting mechanism including a worm gear arranged for rotation about said axis, a worm in mesh with said worm gear and means for driving the worm, said sailing vessel including a mast canting mechanism for varying the position of the mast about a further axis extending longitudinally of the sailing vessel; said mast canting mechanism including a further worm gear arranged for rotation about said further axis, a further worm mesh with said further worm gear and means for driving the further worm; and including a further lock for locking the further worm gear in the angular position to which it has been rotated by said further worm.
2.          A sailing vessel as claimed in claim 1 and including a lock for locking the worm gear in the angular position to which it has been rotated by the worm.
3.          A sailing vessel as claimed in claims 2, wherein said worm gear has multiple apertures into which locking pins are insertable to lock the worm gear in the angular position to which it has been rotated by the worm.
4.          A sailing vessel as claimed in claims 1, 2 or 3 wherein said worm is a double enveloping worm.
5.          A sailing vessel as claimed in claim 1, wherein said further worm gear has multiple apertures into which locking pins are insertable to lock the further worm gear in the angular position to which it has been rotated by the further worm.
6.          A sailing vessel as claimed in claim 5 wherein said further worm is a double enveloping worm.
7.          A sailing vessel having a hull, a mast, a keel extending from the underside of the hull and a keel canting mechanism for varying the angle of the keel about an axis extending longitudinally of the sailing vessel; the keel canting mechanism including a worm gear arranged for rotation about said axis, a worm in mesh with said worm gear and means for driving the worm, said sailing vessel including a ballast bulb for providing ballast at the base of the keel, there being control apparatus for controlling adjustment of the ballast bulb in relation to the keel, wherein the ballast bulb includes: a first rotating mechanism for rotating the ballast bulb around a lateral axis of the ballast bulb to vary the pitch of the ballast bulb in relation to the keel and a second rotating mechanism for rotating the ballast bulb around a longitudinal axis of the ballast bulb to vary the roll of the ballast bulb in relation to the keel.
8.          A sailing vessel as claimed in claim 7, wherein the control apparatus includes a pitch actuator and a roll actuator connected to the ballast bulb by means of wires between each quadrant of an upper surface of the ballast bulb and the keel.
9.          A sailing vessel as claimed in claim 8, wherein the ballast bulb includes a compartment extending longitudinally within the ballast bulb and a movable mass housed within the compartment and movable longitudinally in the compartment to alter the ballast distribution in the ballast bulb.
10.        A sailing vessel as claimed in claim 9, wherein the ballast bulb includes at least one further compartment which is accessible when the sailing vessel is out of the water for storage.
11.        A sailing vessel as claimed in any preceding claim, wherein the keel extends from a rotational housing that extends axially around said longitudinal axis; wherein the rotational housing is hollow and a superior portion of the rotational housing is within the hull of the sailing vessel, a part of the rotational housing which extends below the hull when the keel in in a neutral position being generally cylindrical, wherein an upper part of the rotational housing is of a generally truncated conical shape, the rotational housing having opposing lateral sides and each of said lateral sides having an upper portion that is profiled from fore to aft with an overall conical shape; the conical upper portion of each of the lateral sides being configured to act as a foil; the rotational housing being configured such that windward canting of the keel causes the windward lateral side of the rotational housing to be retracted into the hull and the leeward lateral side of the rotational housing to be deployed from the hull by the canting rotation, such that the profiled conical upper portion of the leeward lateral side of the rotational housing is in the water and acts as a foil promoting lateral resistance in the water and generating lateral lift which opposes leeward drift of the sailing vessel.
12.        A sailing vessel as claimed in claim 11 and including a watertight enclosure affixed and sealed to the interior surface of the hull and which surrounds the generally cylindrical or truncated conical housing of the keel.
13.        A sailing vessel as claimed in any preceding claim and including a shaft about which the keel is rotated, the shaft extending aft of the keel.
14.        A sailing vessel as claimed in claim 13 and which includes a sonar housing for a forward-scanning sonar scanner disposed forward of a said shaft of the keel canting mechanism.
15.        A sailing vessel as claimed in any preceding claim and which includes a rigid rigging arrangement formed of the mast and triangular stays which articulates with a rigging canting mechanism.
16.        A sailing vessel as claimed in claim 15 and including a further rigging arrangement having a triangular arrangement which is rigid between the mast, an extended bowsprit and a forestay.
17.        A sailing vessel as claimed in any preceding claim and including a rigid topmast spreading arrangement in the form of port and starboard topmast sprits having first ends connected to the mast and having their second ends braced apart by a topmast spar, and a closed-loop backstay arrangement from the top of the mast via the second ends of the topmast sprits and a backstay link at the stern of the sailing vessel.
18.        A sailing vessel as claimed in any preceding claim, wherein the hull is a hard chined hull having a port semi-hull chine and a starboard semi-hull chine, whereby the sailing vessel can be heeled to sail on an even-keel on either the port or starboard semi-hull chine.
19.        A sailing vessel as claimed in claim 18 and also including sheer strakes substantially perpendicular to the port semi-hull chine and the starboard semi hull chine.
20.        A sailing vessel as claimed in claim 18 or 19, wherein its hull and its deck are configured such that, when the leeward semi-hull is on an even-keel, the windward hemi-deck and hemi-cockpit surfaces are parallel to the waterline.
21.        A sailing vessel as claimed in any preceding claim and which includes a retractable propulsion system disposed forward of the mast.
22.        A sailing vessel as claimed in any preceding claim and which includes a water making apparatus using a reverse osmosis pump driven by either a helmsman's weight standing on a hinged pedestal or a crew's weight sitting on a hinged seat.
23.        A sailing vessel having a hull, a mast, a keel extending from the underside of the hull and a keel canting arrangement that is rotational about a longitudinal axis of the sailing vessel; the keel extending from a rotational housing that extends axially around the longitudinal axis; and wherein the rotational housing is hollow and a superior portion of the rotational housing is within the hull of the sailing vessel, a part of the rotational housing which extends below the hull when the keel is in a neutral position being generally cylindrical, wherein an upper part of the rotational housing is of a generally truncated conical shape, the rotational housing having opposing lateral sides and each of said lateral sides having an upper portion that is profiled from fore to aft with an overall conical shape; the conical upper portion of each of the lateral sides being configured to act as a foil; the rotational housing being configured such that windward canting of the keel causes the windward lateral side of the rotational housing to be retracted into the hull and the leeward lateral side of the rotational housing to be deployed from the hull by the canting rotation, such that the profiled conical upper portion of the leeward lateral side of the rotational housing is in the water and acts as a foil promoting lateral resistance in the water and generating lateral lift which opposes leeward drift of the sailing vessel.
24.        A sailing vessel as claimed in claim 23, wherein superior portion and opposing lateral sides are each quadrants of the generally cylindrical or truncated conical housing.
25.        A sailing vessel as claimed in claim 24, wherein the front edge of the opposing lateral sides is curved.