Patent ID: 8925352
Filing Date: 2015-01-06
Classification: C03B

Abstract:
1. A method of shaping glass sheets comprising: providing a glass sheet having a leading edge and a trailing edge, heated to a predetermined temperature so as to be shapeable; conveying the glass sheet through a horizontal first shaping zone for transversely shaping the glass sheet, the first shaping zone comprising upper and lower sets of rotating shaping rolls, a first set of one or more pairs of upper and lower shaping rolls each having a first substantially transversely straight configuration and a second set of one or more pairs of upper and lower shaping rolls each having a transversely convexly arcuately curved configuration, the lower transversely convexly arcuately curved shaping roll of each of the one or more pairs of shaping rolls having a convex surface contacting the glass sheet and the upper transversely convexly arcuately curved shaping roll of the respective pair of shaping rolls having a concave surface contacting the glass sheet; the heated glass sheet being conveyed by the rotating shaping rolls at a predetermined velocity into the first shaping zone, the leading edge or the trailing edge of the glass sheet to be shaped contacting the one or more pairs of the upper and lower shaping rolls selectively having the transversely convexly arcuately curved configuration, or the substantially transversely straight configuration, wherein the leading edge and the trailing edge are substantially transversely flat; and conveying the glass sheet to enter a proximate second shaping zone upwardly inclined at a predetermined angle or slope relative to the first horizontal shaping zone.