Patent ID: 6990834
Filing Date: 2006-01-31
Classification: C03B

Abstract:
1. An improved apparatus for forming sheet glass, wherein the apparatus includes a trough inflow pipe for delivering molten glass, a trough for receiving molten glass from the inflow pipe that has sides attached to a wedged shaped sheet forming structure that has downwardly sloping sides converging at the bottom of the wedge such that a glass sheet is formed when molten glass flows over the sides of the trough, down the downwardly sloping sides of the wedged shaped sheet forming structure and meets at the bottom of wedge, and wherein the improvement comprises: at least one thermocouple that measures a temperature of the molten glass, wherein the thermocouple is immersed in at least one location directly in a path of molten glass flow; wherein thermocouples are placed in one or more locations where at least one glass defect caused by a flow of glass in proximity of the thermocouples ends up in at least one unusable bead at either end of the formed glass sheet.