Method and machine for the production of convex glass sheets

Details Method and machine for the production of convex glass sheets Method and machine for the production of convex glass sheets

2004-11-05

2010-02-23

Griffin, Steven P (Department: 1791)

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

C065S104000, C065S286000, C065S287000, C065S351000

Reexamination Certificate

active

07665331

ABSTRACT:
A method and machine for obtaining bent glass sheets. Glass sheets are brought to their softening temperature, then they are caused to travel over a shaping bed of advancing elements for advancing them which are arranged along a path having a circular arc-shaped profile, the sheets progressively assuming their shape on entering the bed and over a first shaping zone, then being hardened by tempering or cooling in a second zone of the bed until they leave, and then the bent glass sheets thus obtained are recovered. The shaping bed is produced with a profile extending in a circular arc of more than 90°, and, on leaving the shaping bed, the hardened glass sheets are moved in a direction opposite that in which they were fed in.

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