Marine propulsion – Screw propeller – Shafting
Patent
1988-04-19
1989-05-23
Peters, Jr., Joseph F.
Marine propulsion
Screw propeller
Shafting
440112, 114162, B63H 2506
Patent
active
048326380
ABSTRACT:
A method is provided for constructing an inboard power boat. The method employs an integrated propulsion and steering unit, and involves applying an insert having an exterior shape corresponding to the exterior shape of the unit to a conventional mold for the boat hull, forming the boat hull by applying laminations to the mold so as to encapsulate the insert, removing the hull from the mold, and fitting the unit to the impression left in the hull by the insert. A universal joint is used to connect the unit to the boat engine. The integrated propulsion and steering unit includes a thrust bearing assembly disposed at the end of a shaft support barrel between the engine drive and the propeller shaft. The support barrel is formed integrally with a base plate which is secured to the boat and which also includes, a part of the integrated unit, a bore for the rudder and one or more downwardly depending propeller support struts. The bearing assembly includes a pair of oppositely active bearing units housed within a bearing housing between the propeller shaft and a flanged connector member. A unique support and sealing arrangement is provided for the bearing unit.
REFERENCES:
patent: 2521368 (1950-09-01), Hingerty, Jr.
patent: 3003458 (1961-10-01), Starns, Jr.
Copeland-Sirois Enterprises, Inc.
Peters Jr. Joseph F.
Swinehart Edwin L.
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