Kicking strap for sailing-boats
OwnerHelge B. Anderseninventor
Life of this patent
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Abstract
A kicking strap for sailing-boats comprises a tackle with two multifold blocks (8, 9) connected and supported by means of two telescopic pipes (15, 16). The pipes are connected by a spring counteracting their joining, e.g. a pneumatic spring (21) secured both to one block (8) and the inner pipe (15), its piston being rigidly connected to the outer pipe (16) through a pin (31) extending through the head of the piston (22). The outer pipe is welded to the second block (9). The pin (31) is guided in an extension of the inner pipe (15). At for instance booming, the kicking strap located between the mast-foot and the boom exerts by means of the spring an upward pressure on the boom so that the boom in the central position during the booming is still raised and may thereby safely pass above the crew.
Claims13
A kicking strap for sailing boats having booms and masts comprising a tackle having a first upper and second lower block, each having at least one sheave and the two being interconnected by a rope passed over said sheaves, said first upper block being hinged to a boom by an upper mounting bar and a boom fitting and said second lower block being hinged at a mast-foot by a lower mounting bar and a fitting;
- an inner pipe interconnecting said upper and lower blocks;
- an outer pipe telescopically containing said inner pipe, said inner pipe being slidable relative to said outer pipe in the longitudinal direction;
- spring means located within and guided by said pipes and connected between said blocks and constantly urging against the shortening of the length between said blocks, whereby the length between said blocks is adjustable by means of said rope passed over said sheaves.
Dependencies are inferred from the claim text.