Ships – Boats – boat component – or attachment – Hull construction
Patent
1988-04-19
1989-10-24
Peters, Jr., Joseph F.
Ships
Boats, boat component, or attachment
Hull construction
205272, 440 83, 440112, B63H 2308
Patent
active
048754307
ABSTRACT:
A method is provided for constructing an engine-powered propeller-driven boat. The method involves first pre-assembling a propulsion system, comprising a plurality of separate pre-machined components such as a propeller shaft, a shaft support strut, and a thrust bearing assembly, on a main casting in a manner so as to assure proper fit and alignment of the components. The components are then disassembled from the casting, and the main casting is mounted on a hull mold in a predetermined position. The hull is then formed by laying up laminations within the hull mold around and over the main casting such that the main casting is made integral with the hull. Thereafter, the components of the propulsion system are re-assembled on the integral main casting so that the components, which now fully aligned, become part of the boat. The thrust bearing assembly includes a main housing which is isolated by a rubber laminate from the bearing housing so as to eliminate propeller shaft vibrations. A universal joint assembly connected between the thrust bearing assembly and the engine takes up any misalignment of the engine.
REFERENCES:
patent: 2022652 (1935-12-01), Fahrney et al.
patent: 2595863 (1952-05-01), Loofbourrow
Copeland-Sirois Enterprises, Inc.
Peters Jr. Joseph F.
Swinehart Edwin L.
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