Surface propeller mounting assembly for boats

Details Surface propeller mounting assembly for boats Surface propeller mounting assembly for boats

1981-05-29

1984-04-17

Basinger, Sherman D.

Marine propulsion

Screw propeller

Combined with rudder

440 66, B63H 514

Patent

active

044432020

ABSTRACT:
A unitary assembly (10) for mounting a surface propeller (52) on the transom (T) of a boat hull (H). The assembly comprises a plate (12) for attachment to the hull (H); a prop shaft support (16) fixed to the plate (12) for juxtaposition against the transom (T); and, a rudder support arm (20) fixed to the plate (12) and extending rearwardly therefrom above and in spaced relationship to the shaft support (16). As a result of its unitary construction, the assembly provides for ready attachment of a surface prop to a hull without major hull modification or the necessity of aligning separate shaft bearing supports and rudder elements. In its preferred embodiment, the assembly also includes a propeller hood supported by the arm and a spray deflector at the aft end of the hood.

REFERENCES:
patent: 2076603 (1937-04-01), Svendsen
patent: 2314370 (1943-03-01), Rietzke
patent: 3742895 (1973-07-01), Horiuchi
patent: 4031846 (1977-06-01), Tone
patent: 4057027 (1977-11-01), Foster
Du Cane, Peter; "Seventh Symposium on Naval Hydrodynamics Panel Discussion No. 9-Planing Craft", Vosper Limited, Aug. 1968.
"Rudder", May 1975, pp. 38-42 and 79-82.
"Boating", Dec. 1980, pp. 59-61, and 101.

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