METHOD AND APPARATUS FOR MAKING OPTICAL FIBRES TWISTED LENGTHWISE, STARTING FROM SOFTENED GLASS

摘要

The invention relates to a production process consisting in a first variant of drawing, stranding and hardening the object in a simultaneous manner before coating it with a product for forming an envelope making it possible to fix the twisting or torsion of said object. According to a second variant the drawing and hardening stages are performed before the twisting and coating stages.