C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
154/2, 154/43
C03B 35/16 (2006.01) C03B 25/08 (2006.01) C03B 29/08 (2006.01) C03B 31/00 (2006.01)
Patent
CA 1258030
ABSTRACT OF THE DISCLOSURE An apparatus for synchronizing the movement of glass sheets through a furnace includes a stop for holding the sheets at the entrance to the furnace. An actuator is responsive to a synchronizing signal for moving the stop and releasing the sheet into the furnace. A reference point sensor detects a reference point associated with a rotating conveyor roller adjacent the entrance to the furnace when the reference point is in a predetermined spatial relationship to the glass sheet which is being held at the entrance. Thus, each glass sheet enters the furnace and engages the conveyor rollers in the same position such that any roller corrugation pattern is reproduced in the same position on each glass sheet. When two such glass sheets are laminated together to form a windshield, the roller corrugation patterns can be matched to reduce the optical distortion produced by the corrugation.
522244
Rahrig Donald D.
Schave Richard D.
Libbey-Owens-Ford Co.
Macrae & Co.
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