Control system for the drawing of glass fibers

Details Control system for the drawing of glass fibers Control system for the drawing of glass fibers

1975-08-08

1976-10-19

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 11W, 65 12, 65 29, C03B 3702

Patent

active

039868532

ABSTRACT:
A control system for use in combination with a bushing assembly of the type wherein glass fibers are drawn through an orifice plate having a flat undersurface against which bulk gas is directed to effect cooling and fiber attentuation. The system controls operation in the event of fiber "break out," by lowering the temperature of the bushing assembly, increasing the rate of flow of bulk gas against the orifice plate, controlling the drawing action of the collet used to draw fibers from the plate, and spraying cooling water against the fibers being drawn from the plate. Control is effected through means of a common main control unit and manual controls are provided to permit operation of the control system to selectively control the operating mode of the system and increase the bulk flow of gas for orifice plate clearing purposes.

REFERENCES:
patent: 3475148 (1969-10-01), Higginbotham
patent: 3649231 (1972-03-01), Trethewey
patent: 3905790 (1975-09-01), Strickland

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