Curved orifice plate for forming glass fibers

Details Curved orifice plate for forming glass fibers Curved orifice plate for forming glass fibers

1978-09-21

1979-08-14

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 11W, 65 12, C03B 3702

Patent

active

041644018

ABSTRACT:
The orifice plate 2 in the bottom of a bushing 1 is uniformly inwardly curved in a concave manner, whereby its resistance to outward deformation or sagging under the weight of molten glass in the bushing and the tension of glass filaments 5 withdrawn therethrough is greatly increased. The plate may be rectangular or circular, i.e. arch-shaped or domed, and may be further strengthened by reinforcing bars 7 secured to the interior side walls of the bushing and to the crown portion of the plate.

REFERENCES:
patent: 2947028 (1960-08-01), Slayter
patent: 3508892 (1970-04-01), McCoppin
patent: 3573014 (1971-03-01), Strickland et al.
patent: 3867119 (1975-02-01), Kasuga et al.
patent: 3988135 (1976-10-01), Coggin

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