A glass ribbon is continuously lifted from the supporting molten metal bath on which it is formed on to a gaseous cushion. The ribbon is conveyed and conditioned on the gaseous cushion, out of direct contact with the mechanical support and conveyor, into an annealing lehr, damage to the soft undersurface of the glass so being avoided.
Origin
Unknown
Journal Title
(U.S.P 3506422, 14.4.70)
Sector
Primary Papers
Class
PP 277