PROCEDIMENTO PER APPARECCHIATURA PER STACCARE I BORDI DI UNA LASTRA DI VETRO

摘要

Bulb edges are severed from a glass sheet. At least one score is imposed along and adjacent to the bulb edge, and the scores are sequentially opened by mechanically running the score. A pair of powered and jointly actuated, simultaneously moving cylindrical mandrels apply torque about the trailing end of the score line to sever the sheet. The lower mandrel moves in an upward direction beneath the sheet while the upper mandrel moves through an arcuate path down and toward the bulb edge. A method of severing bulb edges from a glass sheet is also disclosed in which the scores are opened by applying torque about the score line on the upper and lower edges of the trailing end of a glass sheet.