Glass forehearth

Details Glass forehearth Glass forehearth

C - Chemistry, Metallurgy

03

B

49/53

C03B 7/06 (2006.01)

Patent

CA 1232457

ABSTRACT OF THE DISCLOSURE A forehearth for the conveyance of molten glass has at least one cooling zone which includes a trough and a roof over the trough. A pair of spaced projections extend downwardly from the roof to define in the space below the roof a central channel over the central portion of the stream of molten glass and side channels over respective side portions of the stream of glass. The roof has at least one area of reduced thickness in the portion over the central channel, an enclosed upper cooling channel extending longitudinally of the fore hearth over the area of seduced thickness, an inlet and an outlet spaced longitudinally from the inlet, and heating means for applying heat to each side portion of the stream of glass.

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