Patent ID: 8001805
Filing Date: 2011-08-23
Classification: C03B

Abstract:
1. An apparatus for forming sheet glass, the apparatus comprising a weir including opposed sides and two outer end portions extending between the opposed sides, wherein the opposed sides and the two outer end portions encircle a top of a wedge shaped sheet forming structure to provide a trough for receiving molten glass, the wedge shaped sheet forming structure including downwardly sloping sides converging along a flow direction to a bottom of the wedge shaped sheet forming structure such that a glass sheet is formed when molten glass flows over the opposed sides of the weir, down the downwardly sloping sides of the wedge shaped sheet forming structure along the flow direction and meets at the bottom of the wedge shaped sheet forming structure, and wherein the two outer end portions of the weir are each curved along a plane perpendicular to the flow direction such that molten glass additionally flows over the curved outer end portions, down the curved outer end portions, maintaining contact with that molten glass flowing down the sloping side portions wedge shaped sheet forming structure, and forming the end section of the glass sheet; such that more uniform edge sections are formed.