Method of constructing tubular spars

Details Method of constructing tubular spars Method of constructing tubular spars

1990-04-11

1992-02-04

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264257, B29C 4120, B29C 4320

Patent

active

050858203

ABSTRACT:
A method of constructing tubular spars, particularly spars for use on sailing vessels, includes the step of placing in a channel section mold, a layer or layers of fiber reinforced plastic material to form part of the periphery of the tubular spar. Side wall portions of the mold are then removed and longitudinally spaced formers are placed along the plastic part of the spar that was in the mold. A sheet-like skin is placed over the formers and is secured to the formers. A further layer or layers of fiber reinforced plastic material is then placed over the skin to form the remainder of the periphery of the molded tubular spar.

REFERENCES:
patent: 3765360 (1973-10-01), Monfort

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