Method of and apparatus for preventing the curving of glass shee

Details Method of and apparatus for preventing the curving of glass shee Method of and apparatus for preventing the curving of glass shee

1981-09-08

1983-06-28

Kellogg, Arthur D.

Glass manufacturing

Processes

Glass preform treating

65104, 65268, 65119, 65350, 65351, C03B 2704

Patent

active

043903592

ABSTRACT:
A method for the prevention of the curving of glass sheets in the roller-equipped furnace of a horizontal tempering plant utilizes a substantially turbulent air flow over the upper surface of the glass sheet for intensifying the convection heat action applied to the upper surface of the glass sheet. The furnace is fitted with perforated pipes which are connected to a source of compressed air for blowing horizontal air jets above the upper surface of the glass sheet.

REFERENCES:
patent: 3425818 (1969-02-01), Plumat
patent: 3431095 (1969-03-01), Ross
patent: 3792993 (1974-02-01), Artama et al.
Handbook of Glass Manufacturing, vol. II, pp. 820-832.

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