Method of manufacturing tire inner tubes

Plastic and nonmetallic article shaping or treating: processes – Reactive gas or vapor treatment of work – Work is organic material

Patent

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Details

156118, 156292, 264 93, 264 96, 264248, 264294, 264326, 425 45, B29C 1707, B29H 510

Patent

active

039976416

ABSTRACT:
A method of manufacturing tire inner tubes in which the tube is moulded in two annular parts from worked uncured rubber, and the parts are joined but before curing of the rubber is completed the tube is stretched to a larger internal diameter and inflated into a mould with the larger internal diameter.

REFERENCES:
patent: 1219351 (1917-03-01), Roberts
patent: 3825457 (1974-07-01), Holroyd et al.

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