Apparatus and method for controlling the flatness of a newly-for

Details Apparatus and method for controlling the flatness of a newly-for Apparatus and method for controlling the flatness of a newly-for

1974-10-15

1976-02-24

Kellogg, Arthur D.

Glass manufacturing

Processes

Forming and fire polishing or product

65 99A, 65182R, 65203, 65204, C03B 1802

Patent

active

039402568

ABSTRACT:
Flat glass is produced by advancing a layer of molten glass on the surface of molten metal while cooling it sufficiently to form a continuous sheet of glass which is lifted upwardly from the surface of the supporting pool of molten metal and conveyed upwardly from it for further processing. A method is provided for selectively controlling the temperature, and thus the viscosity, of the glass of selected portions across the width of the continuous sheet of glass in order to adjust and maintain the relative lengths of the respective portions of the continuous sheet of glass as it is lifted upwardly from the supporting pool of molten metal and to thereby control the flatness of the continuous sheet of glass as it is ascending from the supporting pool of molten metal.

REFERENCES:
patent: 3223502 (1965-12-01), Ward et al.
patent: 3649237 (1972-03-01), Classen et al.
patent: 3674456 (1972-07-01), Swillinger

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