Marine propulsion – Screw propeller – With means effecting or facilitating movement of propulsion...
Patent
1984-01-27
1984-11-13
Blix, Trygve M.
Marine propulsion
Screw propeller
With means effecting or facilitating movement of propulsion...
114144R, 248642, 248900, B63H 2542
Patent
active
044823320
ABSTRACT:
An arrangement for steerably mounting an outboard motor on a boat in which the mounting is effected such that the steering axis of rotation of the motor is angled rearwardly so that the center of gravity of the motor lies at or forward of the axis. The outboard motor has a lower pivotal attachment point generally forward of the motor drive shaft and preferably above and/or forward of the hydraulic center of pressure on the lower motor gear case housing. The upper pivotal attachment of the outboard motor may be effected by a single pivot point generally rearward of the motor drive shaft or by the provision of a virtual pivot point to provide the desired angle for the axis of rotation. The virtual pivot point is obtained through the use of a linkage arrangement including a pair of links. The links are pivotally attached to the rear of the boat at their first ends and pivotally attached on opposite sides of the lower gear case housing at their other ends.
REFERENCES:
patent: 871459 (1907-11-01), Thorsen
patent: 2714362 (1955-08-01), Schroeder
patent: 2737920 (1956-03-01), Heath
patent: 3033500 (1962-05-01), Graves
patent: 3062173 (1962-11-01), Kiekhaefer
patent: 3075490 (1963-01-01), Lang
patent: 3107073 (1963-10-01), Monroe
patent: 3404656 (1968-10-01), Chamberlain
patent: 3613631 (1972-10-01), Wick
patent: 3968768 (1976-07-01), Solt
patent: 4302195 (1981-11-01), Bryant
Blix Trygve M.
Brahan Thomas J.
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