Fiber forming bushing and method for using same

Details Fiber forming bushing and method for using same Fiber forming bushing and method for using same

1984-05-10

1985-06-25

Lindsay, Robert

Glass manufacturing

Processes

Forming product or preform from molten glass

65 2, 65172, 65173, C03B 3709

Patent

active

045251886

ABSTRACT:
The invention involves a fiber glass bushing which is provided with a plurality of tubular feed inlets, through a top cover chamber, which by means of controlled introduction of a gaseous medium allows a gaseous void to be maintained above the glass level in the bushing. The gas void allows easy removal of the bushing from the forehearth and the tubes provide a means of stopping glass flow from forehearth during bushing removal without requiring severe cooling of the surrounding ceramics. Flexibility in glass feed to the bushing for optimum conditions is also possible.

REFERENCES:
patent: 2294266 (1942-08-01), Barnard
patent: 2453864 (1948-11-01), Schlehr
patent: 2465283 (1949-03-01), Schlehr
patent: 3164457 (1965-01-01), Mitchell et al.
patent: 3278282 (1956-10-01), Jaray
patent: 3837823 (1974-09-01), Shealy
patent: 3988135 (1976-10-01), Coggin, Jr.

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