METHOD AND APPARATUS FOR SEPARATING A PANE OF BRITTLE MATERIAL FROM A MOVING RIBBON OF THE MATERIAL

摘要

A pane (24) is separated from a moving ribbon (20) of brittle material by restraining the pbbon upstream of a score line (26) ppor to separating the pane The pbbon is restrained by selectively contacting a first side (32) with an upstream press bar (60) and a second sid (34) of the pbbon with an upstream backing bar (80) in one of an opposite, overlapping or offset relation The pbbon can be restrained ppor to, substantially simultaneous with or subsequent to forming the score line Aftei separation of the pane from the ribbon using downstream press bar (70), the restrained status of the pbbon is maintained dunng and immediately after separation, thereby reducing the introduction of a disturbance or bending moment into the upstream ribbon