Adaptation of glass shaping means for tempering flat glass

Glass manufacturing – Processes – Glass preform treating

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Details

65351, 65104, C03B 2700

Patent

active

041116763

ABSTRACT:
A continuous operation for heating, bending and tempering glass sheets is converted to tempering flat glass sheets by employing a heat-reflecting shield over the glass path in the unused bending zone. In the quenching zone, quenching medium is directed against the underside of the glass sheets with greater force than is customary, and driven hold-down rolls are employed above the glass path in the quench zone in order to maintain movement of the glass sheets through the quenching zone.

REFERENCES:
patent: 2348887 (1944-05-01), Drake
patent: 3223498 (1965-12-01), Davidson, Jr.
patent: 3245772 (1966-04-01), Cypher et al.
patent: 3701644 (1972-10-01), Frank
patent: 3801298 (1974-04-01), Bezombes
patent: 3992181 (1976-11-01), Frank
patent: 4028086 (1977-06-01), Rahrig et al.

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