Stock material or miscellaneous articles – Structurally defined web or sheet – Edge feature
Patent
1987-12-23
1989-05-09
Kellogg, Arthur
Stock material or miscellaneous articles
Structurally defined web or sheet
Edge feature
65 97, 65105, 65112, 65174, 65176, C03B 2102
Patent
active
048289000
ABSTRACT:
Glass shapes and sheets are cut directly from a heated glass ribbon while maintaining the optical quality of the cut glass. A float glass ribbon is removed from a glass forming chamber and prior to annealing, a line of cut is heated to its softening temperature. A blade arrangement thereafter penetrates the glass along the heated line of cut to sever the glass. The cut glass edge is shaped after cutting while the edge is still at the softening temperature. Duuring the line heating and cutting operation, the overall glass temperature is maintained above the strain point of the glass.
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Kellogg Arthur
PPG Industries Inc.
Siminerio Andrew C.
LandOfFree
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