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
Patent
1983-02-23
1984-12-04
Hoag, Willard E.
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
156140, 264257, 264267, B29D 302, B29D 3100
Patent
active
044863756
ABSTRACT:
A method of manufacturing a toothed belt including the steps of providing a cylindrical mold having a plurality of longitudinal circumferentially spaced grooves, providing a thin layer of settable material on the mold surface, preforming a fabric to define a corrugated reinforcement having projections complementary to the grooves, placing the corrugated fabric in fitted association about the mold, urging the fabric forcibly against the mold to cause accurate fit of the fabric in the grooves, maintaining the urging while causing the settable material to at least partially set on the fabric corrugations, wrapping a tensile cord about the fabric-covered mold, and forming a belt body about the tensile cord and in the corrugations on the fabric. The resultant toothed belt sleeve may be cut transversely at axially spaced positions to define individual toothed drive belts, as desired. In a modified form, filler pieces are provided in the grooves of the corrugated fabric to facilitate accurate fit of the fabric to the mold.
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Hoag Willard E.
Mitsuboshi Belting Ltd.
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