B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
154/61, 154/19.6
B29D 30/30 (2006.01) B29D 30/58 (2006.01)
Patent
CA 1280343
Abstract of the Disclosure A method and apparatus are provided for moni- toring proper application of a length of tread stock to the periphery of a green tire carcass. The tread stock has an outer face with a centering mark defined along the length of the outer face. The stock is affixed to the green tire carcass in a supposed centered position to form an assembled green tire, and the assembled green tire is supported for rotation. A wheel having a pair of annular ridges or grooves on its peripheral surface is positioned in contact With the green tire, and the green tire and wheel are mutually counterrotated. The ridges or grooves are positioned on the wheel spaced equidistantly from the centerline of the green tire, so that counterrotation of the green tire and wheel cause the ridges or grooves to impress alignment marks into the tread stock on each side of the central groove. The spacing between the alignment and centering marks provides a qualitative and quantita- tive appraisal of the positioning of the tread stock on the green tire carcass, and when such alignment variations exceed specifications, the variation is readily ascertain able and the subject green tire may be rejected.
547725
Cooper Tire & Rubber Company
Gowling Lafleur Henderson Llp
Klose Karl W.
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