Synthetic resin glass fibre reinforced - cylinders

摘要

These are produced in a rotary mould moving about a horizontal axis by spraying the resin glass fibre mixture onto the inner wall of the mould and calendering the mixture using a pair of grooved rollers supported on spring biased pivotal arms which are articulated to a radial lever mounted freely rotatably on a telescopic arm which is concentric with the mould and which supports the mixture spray heads.