Glass fiber-forming apparatus

Details Glass fiber-forming apparatus Glass fiber-forming apparatus

1980-12-29

1982-08-10

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 12, C03B 37025

Patent

active

043436358

ABSTRACT:
The invention relates to apparatus for producing fibers from heat softened mineral material, such as glass. More specifically, this invention relates to an orifice plate for a glass fiber drawing bushing of the type having a flat undersurface and a plurality of orifices formed therethrough with the improvement comprising at least two sets of grooves formed on said undersurface, said grooves extending in intersecting relationship to divide said undersurface into a plurality of sections, said orifices being located within said sections. The grooves can have a width in the range of from aout 0.1 mm to about 1.2 mm and a depth in the range of from about 0.1 mm to about 0.5 mm. The orifice plate can comprise rod members at the intersections of the grooves with said rod members projecting beneath said grooves.

REFERENCES:
patent: 3574581 (1971-04-01), Strickland et al.
patent: 3979195 (1976-09-01), Strickland
patent: 4032314 (1977-06-01), Coggin

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