Ships – Spars – Masts and masting
Patent
1989-02-27
1990-11-27
Peters,, Jr.
Ships
Spars
Masts and masting
114102, B63B 1500
Patent
active
049727893
ABSTRACT:
The invention concerns a mast for sailboats, apt to support two distinct sailcloths forming a wing sail. According to the invention, the mast comprises a tubular body which has a cross section divided in two parts by an axis transversal to the longitudinal axis of the boat, a first part facing the bow and a second part facing the stern. The first part facing the bow has a markedly convex or substantially semielliptic curved profile, while the second part facing the stern has a rounded tip profile or a substantially semicircular profile. Said tubular body comprises anchor means for the two sailcloths forming the wing sail, positioned along two generatrices crossing two points which are symmetrical in respect of the center or coinciding with the center of said first part facing the bow. Also according to the invention, the cross section of said tubular body comprises at least one cavity, opening outwards into a slot extending along one of said generatrices, said slot being crossed by one of the sailcloths and said cavity housing said anchor means for said sailcloth.
REFERENCES:
patent: 3851609 (1974-12-01), Stearn
patent: 3882810 (1975-05-01), Roeser
patent: 4367688 (1983-01-01), Godfrey
patent: 4593638 (1986-06-01), Cochran et al.
patent: 4704979 (1987-11-01), Ammen et al.
patent: 4712500 (1987-12-01), Montandon
Peters Jr.
Sotelo Jesus D.
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