Patent ID: 6896646
Filing Date: 2005-05-24
Classification: C03B,F27B,F27D,Y10T

Abstract:
1. A roll for pulling a glass ribbon comprising: (a) a shaft having a first end and a second end; (b) a plurality of heat-resistant discs mounted on the shaft in face-to-face contact, said discs having circular outer peripheries which together form a roll surface, one or more portions of which are adapted to contact the glass ribbon during use of the roll, said discs comprising refractory ceramic fibers, mica, and a heat resistant binder; and (c) a pair of fittings affixed to the shaft, said fittings being spaced from one another along the shaft by a distance which causes an axial compressive force to be applied to the discs; wherein when the discs are subject to said axial compressive force, the one or more portions of the roll surface that are adapted to contact the glass ribbon have a Shore D hardness at room temperature of between 30 and 55.