IMPROVEMENTS IN THE MANUFACTURE OF HOSE PIPES

摘要

The invention provides mechanism for feeding a textile jacket along a rearward extension of the mandrel of an extrusion head which applies to the jacket a cover and a lining of rubber or plastics material, said mechanism including two spaced clamps which are operable alternately to clamp the jacket to the mandrel extension and to hold the latter against forward movement, two feed mechanisms one of which operates while the front clamp is engaged to feed the portion of the jacket between the clamps forwardly along the mandrel extension, and the other of which operates while the rear clamp is engaged to feed forwardly along the mandrel extension the portion of the jacket in advance of the clamps and an automatic control circuit for effecting sequential operation of the clamps and the feed mechanisms.