Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1977-12-30
1979-04-17
Lindsay, Jr., Robert L.
Glass manufacturing
Processes
Forming product or preform from molten glass
65 2, 65 5, 65 11W, 65 12, C03B 3700
Patent
active
041498658
ABSTRACT:
An apparatus and method for use 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. A selectively adjustable bulk gas nozzle has a plurality of discharge conduits with valves therein which are adjustable and capable of being selectively operated to close the conduits or return the conduits to a preset open condition. Mounting means supports the nozzle and/or a binder applicator for select movement toward and away from the path of fiber being drawn from the orifice plate. A detector senses the presence of fiber being drawn from the orifice plate and, in the event of fiber break-out, initiates a series of steps to warn the operator of the bushing assembly and, in the event the break-out condition is not corrected, shut down the drawing operation.
REFERENCES:
patent: 3817728 (1974-06-01), Peterson
patent: 3820967 (1974-06-01), Johnson
patent: 3879128 (1975-04-01), Presby
patent: 3986853 (1976-10-01), Coggin et al.
patent: 3988135 (1976-10-01), Coggin
patent: 4003731 (1977-01-01), Thompson
Coggin, Jr. Charles H.
Jones, Jr. John L.
Lindsay, Jr. Robert L.
Nitto Boseki Co. Ltd.
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