Positive containment threshold for use in glass manufacturing ap

Details Positive containment threshold for use in glass manufacturing ap Positive containment threshold for use in glass manufacturing ap

1975-02-12

1976-10-19

Lindsay, Jr., Robert L.

Glass manufacturing

With fluid support for article or preform

Gaseous support

65186, 65338, 65374RM, C03B 1802, C03B 522

Patent

active

039868575

ABSTRACT:
A positive containment threshold for use in an apparatus for manufacturing flat glass includes a metal base with a combination of vertically disposed members for connection to a bottom casing of a glass forming chamber. Disposed adjacent a vertical member which serves as an end wall casing member in the combination is at least one refractory threshold block which provides a smooth glass contact surface over which molten glass may be delivered onto a pool of molten metal contained within the bottom portion of an enclosed forming chamber. This threshold in combination with the casing surrounding the bottom portion of an enclosed forming chamber provides an impervious barrier to prevent the inadvertent loss of molten metal from the container in the event of refractory failure.

REFERENCES:
patent: 1548444 (1925-08-01), Corl
patent: 2015791 (1935-10-01), Gelstharp et al.
patent: 3843344 (1974-10-01), Galey
patent: 3843346 (1974-10-01), Edge et al.

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