Apparatus for use in the retreading and repairing of rubber pneumatic tyres
Abstract
Abstract 555,689. Re-treading pneumatic tyre covers. WRIGHT, S. A. April 17, 1942, No. 7359. Divided out of 555,680. [Classes 70 and 87 (ii)] A worn pneumatic cover 14 is re-treaded by applying the new tread 15 kept in shape by a matrix 21 during vulcanizing which is effected bv heat from an electric element 19 covered with asbestos and by pressure due to two inflated rubber tubes 13, 16, the assembly being held in place on a wide wheel rim 10 having a detachable flange 11, by an outer tyre cover circumferentially divided into two halves 1, 2, clamped together by flanges 4<SP>1</SP>, on one cover, half, hooked parts of the flanges locking fast to. a circumferential ring 3 secured to the other half.
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