Reinforced tubular articles

摘要

The production of a reinforced tubular article employs a rotatable roller (1) and a fixed mandrel (3) which are spaced apart so as to define a nip (4) there-between. A strip (5) of reinforced polymeric material is fed through said nip and caused to wind helically around the mandrel (3) by the action of the rotatable roller (1), thereby forming a tubular article (7) the wall thickness of which is equal to size of the nip (4). A carrier strip (11) of low friction material may be provided to assist movement of the reinforcing strip (5) over the mandrel (3). Said movement may be further assisted by arranging the rotatable roller in skewed relation relative to the fixed mandrel.