Ships – Watercraft with means used in providing sailpower – Having specifically defined hull shape
Patent
1979-10-16
1982-01-19
Rolla, Joseph J.
Ships
Watercraft with means used in providing sailpower
Having specifically defined hull shape
9310E, 114 90, 114 97, 114102, 403226, B63H 908, B63B 1500
Patent
active
043111076
ABSTRACT:
An improved wind-propelled apparatus is disclosed which includes a body mounting a stub mast generally orthogonal thereto. The stub mast is mounted in a well formed on the body and secured by a sleeve, resilient annulus and plug combination. Mounted on the stub mast is a generally vertical sail mast which is rotatable about a vertical axis. The stub mast also mounts a boom of sufficient length as to be capable of passing under the sail and having an eye and strap arrangement for securing the boom on either side of the sail.
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patent: 641321 (1900-01-01), Perkins
patent: 1732648 (1929-10-01), Flintermann
patent: 1867358 (1932-07-01), Harness
patent: 2101078 (1937-12-01), Lord et al.
patent: 2353007 (1944-07-01), Blackman
patent: 3090340 (1963-05-01), McCutchen et al.
patent: 3187800 (1970-01-01), Schweitzer
patent: 3996868 (1976-12-01), Schagen
patent: 4011021 (1977-03-01), Hartz
patent: 4073254 (1978-02-01), Marker
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