Method and apparatus for making glass filament or fibers

Details Method and apparatus for making glass filament or fibers Method and apparatus for making glass filament or fibers

1981-11-04

1983-11-22

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 12, 65DIG4, 65 1, C03B 3709, C03B 37025

Patent

active

044166788

ABSTRACT:
A forechamber or reservoir to which molten glass is fed, is provided with burners for heating the surface of the glass mass. The molten glass is conducted from the forechamber via at least one opening in its bottom wall into a vertically disposed intermediate chamber which is provided at its lower end with a nozzle heating plate having a plurality of orifices through which the mass is extruded. The intermediate chamber is provided with electrode heating elements so that the glass mass may be heated within the chamber. The height of the chamber is greater than its longitudinal length or diameter so that a laminar flow, caused by the head of the molten glass through the forechamber and intermediate chamber, is effected.

REFERENCES:
patent: 3912477 (1975-10-01), Brady et al.
patent: 3920430 (1975-11-01), Carey
patent: 3988135 (1976-10-01), Coggin
patent: 4178162 (1979-12-01), Shono et al.
patent: 4249398 (1981-02-01), Greene et al.
patent: 4270941 (1981-06-01), Babbitt
patent: 4272272 (1981-06-01), Grubka
patent: 4325721 (1982-04-01), Jensen

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