Sailing boats
OwnerRichard Edmund Tostevininventor
Life of this patent
Estimating the term…
Abstract
A mast (1) is in the form of an egg-shaped closed loop that extends abeam of a hull (7). A main spar (2) is supported on the mast (1) and extends upwardly from a lower, fore position on the bowsprit (4) to a higher, aft position above the stern (12). A lateen sail (3) of triangular form has its longer side attached to the main spar (2) with its shorter sides depending from the main spar (2). The free corner of the sail (3) is tethered by ropes or sheets (14) to points on the sides of the hull (7) or deck such that it is positioned substantially above the centre line of the hull (7). The sail (3) can be fully deployed within the closed loop shape of the mast (1) without fouling the mast (1). This allows the sail (3) full and unrestricted deployment, results in exceptionally good sailing and provides swift and easy tacking.
Claims41
A sailing boat comprising:
- a hull;
- a mast that is mounted directly or indirectly on the hull so as to be substantially fixed in use, extends upwardly at one side of the hull, outwardly beyond said side of the hull, and then inwardly to a point substantially above the centre line of the hull;
- a main spar supported on the mast with the main spar extending upwardly from a lower, fore position forward of the mast to a higher, aft position aft of the mast;
- and
- a sail depending from the main spar for deployment to one side of the mast:
- wherein said mast extends outwardly of the hull for a distance equal to at least 20 percent of the extreme beam of the hull.
A sailing boat comprising:
- a hull;
- a mast that is mounted directly or indirectly on the hull so as to be substantially fixed in use, and comprises a pair of opposing side portions, each of which extends upwardly at a respective side of the hull, outwardly beyond said side of the hull, and then inwardly to a point substantially above the centre line of the hull, where said side portions are joined;
- a main spar supported on the mast with the main spar extending upwardly from a lower, fore position forward of the mast to a higher, aft position aft of the mast;
- and
- a sail depending from the main spar for deployment between said opposing side portions:
- wherein said mast extends outwardly of the hull for a distance equal to at least 20 percent of the extreme beam of the hull.
A sailing boat comprising:
- a hull;
- a mast that is mounted directly or indirectly on the hull so as to be substantially fixed in use, and comprises a pair of opposing side portions, each of which extends upwardly at a respective side of the hull, and then inwardly to a point substantially above the centre line of the hull, where said side portions are joined;
- a main spar supported on the mast with the main spar extending upwardly from a lower, fore position forward of the mast to a higher, aft position aft of the mast;
- and
- a sail depending from the main spar for deployment between said opposing side portions:
- wherein the maximum width of said mast is at least 60 percent of its height.
Dependencies are inferred from the claim text.