Glass forehearth

Details Glass forehearth Glass forehearth

1985-11-12

1987-07-14

Kellogg, Arthur

Glass manufacturing

Glass conditioning channel section

65337, 65356, C03B 5235

Patent

active

046800514

ABSTRACT:
A forehearth for molten glass having at least one cooling zone which includes a trough and a roof over the trough. A pair of spaced projections extending downwardly from the roof to define a central channel over the molten glass and side channels over the respective side portions of the molten glass. The roof has an area of reduced thickness in the portion over the central channel. An enclosed upper cooling channel extends longitudinally over the area of reduced thickness and has an inlet and an outlet spaced from the inlet, and heating means are provided for each side portion of the forehearth.

REFERENCES:
patent: 1893061 (1933-01-01), Peiler
patent: 2282554 (1942-05-01), Barker
patent: 3582310 (1971-06-01), Avery et al.
patent: 3999972 (1976-12-01), Brax
patent: 4294603 (1976-12-01), Winzer et al.
patent: 4552579 (1985-11-01), Blumenfeld

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