Ships – Watercraft with means used in providing sailpower – Having specifically defined hull shape
Patent
1980-09-26
1982-06-08
Blix, Trygve M.
Ships
Watercraft with means used in providing sailpower
Having specifically defined hull shape
114 89, 114 61, 114102, 403217, B63B 3500
Patent
active
043334121
ABSTRACT:
A wind propelled craft adapted for movement over water or ice having an equilateral tetrahedral frame comprising three substantially equidistantly spaced support members adapted to engage and be supported on the surface of the water, four substantially rigid spars connected together at a juncture and extending radially outward therefrom such that they are separated from each other by equal angles, and a plurality of equilength stays connected between each of the spars and the other spars at points on the spars substantially equidistant from the juncture so as to form with the spars a frame of substantially equilateral tetrahedral shape. Three of the spars extend laterally and downwardly from the juncture and are connected to the support members by stays with the fourth spar extending upwardly from the juncture. A pair of triangular mainsails are connected to respective pairs of stays extending downwardly from the vertical spar in such a manner that they are capable of being raised and lowered. Two pairs of auxiliary sails are mounted rearwardly of the mainsails. Rudders connected to the three support members, respectively, enable the craft to be steered in the desired direction.
REFERENCES:
patent: 1642716 (1927-09-01), Bentzen
patent: 3395664 (1968-08-01), Greenberg et al.
patent: 3827206 (1974-08-01), Nierle
patent: 3933110 (1976-01-01), Jamieson
patent: 3991694 (1976-11-01), Black
patent: 4149481 (1979-04-01), Leber
Blix Trygve M.
Brahan Thomas J.
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