Ships – Spars – Masts and masting
Patent
1977-07-12
1979-01-23
Blix, Trygve M.
Ships
Spars
Masts and masting
114 39, B63B 1500
Patent
active
041354664
ABSTRACT:
The present invention relates to arrangements for dampening sound-vibrations in elongate hollow members and more particularly to devices especially useful on sailing vessels to attentuate sound-vibrations generated by halyards slapping against hollow masts under the effect of wind or rolling and pitching movements of the vessel.
REFERENCES:
patent: 2020194 (1935-11-01), Kuhlmann
patent: 3750058 (1973-07-01), Bankert
patent: 3889045 (1975-06-01), Logsdon
Blix Trygve M.
Keen D. W.
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