Variable speed trolling apparatus

Ships – Steering mechanism – Speed retarders

Patent

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Details

B63H 2544

Patent

active

050903470

ABSTRACT:
The method and apparatus for entraining the thrust from a propeller and directing the thrust aft in a regulated manner so as to provide directional stability and speed for an aquatic vessel. The invention includes an entrainment member 12 which hinges between an operative and inoperative position utilizing retractor assembly 54. Entrainment member 12 includes a regulator assembly 28 which further includes a screw assembly 22 driven by a motor 32. The entrainment member 12 is generally frusto-conical in shape. Located within entrainment member 12 is cone member 128 which is mounted with the point facing forward and the base aft. Cone member 128 includes a nut 30 which cooperatively engages screw assembly 22. Therefore, when screw assembly 22 turns, cone member 128 moves forward and aft within entrainment member 12. Movement of the cone member 128 increases and decreases the flow or water from a propeller through the entrainment member 12 thereby affecting vessel speed.

REFERENCES:
patent: 1475695 (1923-11-01), Golden
patent: 2155112 (1939-04-01), Anderson
patent: 2509238 (1950-05-01), Martin
patent: 2548121 (1951-04-01), Reid
patent: 2916005 (1959-12-01), Parsons
patent: 3214903 (1965-11-01), Cochran
patent: 3823684 (1974-07-01), Baggs
patent: 3965839 (1976-06-01), Lenz
patent: 4026231 (1977-05-01), Fedorko
patent: 4549498 (1985-10-01), Meyer et al.

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