Ships – Spars – Gaffs – booms – etc.
Patent
1993-03-17
1994-05-24
Swinehart, Edwin L.
Ships
Spars
Gaffs, booms, etc.
114 89, B63B 1500
Patent
active
053139046
ABSTRACT:
A sail boom clamp has two opposing jaws (22) and (23) which fit around a mast (2) in use to hold a sail boom in position. The effective separation of the jaws (22) and (23) can be altered by cooperation between a foot 40 on an underside of the jaw (23) and steps in an arcuate wedge (41). The wedge is moved to present different of the steps to the press against the foot (40) in use to hold the jaw in different positions relative to a body (20). The jaws are closed and held closed by an over-center clamping arrangement consisting of a handle (26) and a wire loop (24).
REFERENCES:
patent: 2149903 (1939-03-01), Thompson
patent: 2302475 (1942-11-01), Richards
patent: 2725246 (1955-11-01), Weinhold
patent: 5000108 (1991-03-01), Wagner
Schmidtkunz Klaus
Vandijk Raymond
Neil Pryde Limited
Swinehart Edwin L.
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