Vertical glassmaking furnace and method of operation

Details Vertical glassmaking furnace and method of operation Vertical glassmaking furnace and method of operation

1976-01-19

1976-12-21

Kellogg, Arthur D.

Glass manufacturing

Processes

Fining or homogenizing molten glass

65337, 65347, 65DIG4, 13 6, C03B 502

Patent

active

039986195

ABSTRACT:
A vertically elongated glassmaking furnace is provided with two groups of electrodes: one group is positioned in the upper portion of the furnace and is operated to melt glass batch and to establish an upward flow of hot glass along the center of the furnace; a second group is positioned in the lower portion of the furnace and operated to slow the downward flow of molten glass through the furnace, particularly near the walls of the furnace so that all the molten glass in the lower portion of the furnace flows uniformly downwardly to discharge at a rate sufficiently slow to insure the upward escape of seeds or bubbles from the discharged glass.

REFERENCES:
patent: 3520979 (1970-07-01), Scarfe et al.
patent: 3583861 (1971-06-01), Preston

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