B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
205/22
B23P 17/00 (2006.01) B21C 23/10 (2006.01) B21C 37/15 (2006.01) B29C 67/00 (2006.01) B29D 30/48 (2006.01) B60C 15/04 (2006.01)
Patent
CA 1102738
ABSTRACT OF THE DISCLOSURE: Process of fabricating hollow bead rings for the beads of pneumatic tires, said hollow bead rings having a radial cross- section with at least one interior partition which connects toge- ther two portions of the outer contour, is improved by using the following operations: a) extruding, by means of an extruder whose orifice is equipped with a single mandrel, a hollow member whose interior partition is connected to a single one of said portions, the other end of the interior partition being free, and b) deforming, in one or more steps, the radial cross- section of the hollow member until the free end of the interior partition comes into contact with the other portion of the outer contour.
303040
Michelin & Cie (compagnie Generale Des Etablissements Michelin)
Robic Robic & Associes/associates
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