B - Operations – Transporting – 63 – H
Patent
B - Operations, Transporting
63
H
B63H 5/16 (2006.01) B63H 1/18 (2006.01)
Patent
CA 2456792
A line cutting device for use with a hydrodynamic propeller has a blade (5) fixed to a vessel having the propeller. Three rotating blades (22) extend from a hub fixed around the propeller's shaft. The fixed and rotating blades are arranged for line shearing action. Each of the rotating blades has four apertures (21) extending from front to back through the blade for passage of water therethough towards a respective blade of the propeller. The apertures are arranged to alleviate cavitation on the propeller blades.
L'invention concerne un dispositif de coupe de lignes utilisé avec une hélice hydrodynamique, équipé d'une lame (5) fixée à un vaisseau muni de l'hélice. Trois lames tournantes (22) se prolongent à partir d'un moyeu fixé autour de l'arbre de l'hélice. La lame fixe et les lames tournantes sont conçues pour cisailler des lignes. Chaque lame tournante possède quatre orifices (21) la traversant d'avant en arrière destinés au passage de l'eau en direction d'une lame correspondante de l'hélice. Les orifices sont disposés de manière à atténuer la cavitation sur les lames d'hélice.
Dennison Associates
Shaw Robin David
LandOfFree
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