B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
18/1005, 154/7
B29D 29/00 (2006.01) B29C 43/02 (2006.01) B29D 29/08 (2006.01)
Patent
CA 1212807
ABSTRACT A method and apparatus for forming belt sleeves having grooves provided in either or both of the inner and outer surfaces thereof. The manufacture includes the provision of a preform laminate on an inner mold and the forcible urging of a constrictable outer mold radial- ly against the laminate at elevated temperatures so as to effect curing of the rubber of the laminate in accurate conformity to the grooved configuration of the inner and outer molds. The entire assembly is carried on a central support post. Pressure plates are provided for urging the constrictable outer mold radial- ly inwardly as the result of threaded advance of nuts on the central post. The grooves in the mold surfaces may selectively be arranged to extend parallel or circumferentially of the central axis of the post as desired to form either longitudinally or transversely extending ribs, grooves, etc., in the formed sleeve belt.
424496
Mizuno Takahide
Takano Hiroshi
Yokoyama Hiroshi
Meredith & Finlayson
Mitsuboshi Belting Ltd.
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