B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
18/185
B29D 30/52 (2006.01) B29C 35/02 (2006.01) B29C 43/22 (2006.01) B29D 30/24 (2006.01) B29D 30/56 (2006.01) B29D 30/70 (2006.01)
Patent
CA 1278406
ABSTRACT OF THE DISCLOSURE: A method and an apparatus for manufacturing a pre- vulcanized tread having an outer face with a tread pattern and a sole. The apparatus comprises a molding ring for the sole of the tread, a molding arm for the tread pattern, and heating elements for vulcanizing the tread. The ring defines in closed position at least in part a first quasi- cylindrical surface and the arm defines in closed position at least in part a second coaxial quasi-cylindrical surface located radially outward of the first surface. The ring and the arm in closed position are immovable with respect to each other and are imparted a movement of rotation around the axis of the surfaces. The ring and the arm define during the molding and vulcanizing of the tread a continuous molding space arranged as a circular arc of less than 360°.
605204
Michelin & Cie (compagnie Generale Des Etablissements Michelin)
Robic
LandOfFree
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