Ships – Steering mechanism – Rudders
Patent
1985-07-01
1987-03-31
Basinger, Sherman D.
Ships
Steering mechanism
Rudders
B63H 2538
Patent
active
046534180
ABSTRACT:
An energy-saving rudder in which auxiliary wings are extended from a conventional rudder so that the rotating energy of the propeller slip stream which impinges on the auxiliary wings can be recovered and converted into the propulsion thrust. Also disclosed is a method for fabricating a rudder with wings. The peripheral portion (trailing edge, leading edge and tip portions) of each auxiliary wing and the root portion thereof are separately fabricated by casting and the upper and lower wing surface plates are welded to the frame which is prepared by assembling the peripheral and root portions of each auxiliary wing. The auxiliary wings therefore can be fabricated and positioned with a high degree of accuracy.
REFERENCES:
patent: 1639675 (1927-08-01), Snadecki
patent: 1795346 (1931-03-01), Rebl
patent: 2099229 (1937-11-01), Possenheim
patent: 3159132 (1964-12-01), Petrich
patent: 3230920 (1966-01-01), Piskorz-Naleck
Mori Masahiko
Otagaki Yoshio
Avila Stephen P.
Basinger Sherman D.
Ishikawajima-Harima Jukogyo Kabushiki Kaisha
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