Glass manufacturing – Processes – With measuring – sensing – inspecting – indicating – or testing
Patent
1981-11-23
1982-09-21
Lindsay, Jr., Robert L.
Glass manufacturing
Processes
With measuring, sensing, inspecting, indicating, or testing
65 86, 65108, 65110, 65164, 65187, C03B 1514
Patent
active
043505139
ABSTRACT:
A glass tube extrusion apparatus (50) is comprised of a chamber (52) having a crucible (72) therein mounted within and spaced from an inductive heating coil (77). As a glass tube (170) is extruded from an annular opening (74) in the bottom of the crucible (72) the tube is monitored for bending. When a bend starts to occur an X-Y motion apparatus (54) is activated to move the crucible (72) laterally within the coil (77) in a direction opposite to the bend to straighten the tube (170).
REFERENCES:
patent: 2893847 (1959-07-01), Schweickert et al.
patent: 3607184 (1971-09-01), Williams
patent: 3876877 (1975-04-01), Wilhelmus et al.
patent: 3935059 (1976-01-01), Ayel
patent: 4118212 (1978-10-01), Aulich et al.
patent: 4195982 (1980-04-01), Coucoulas et al.
patent: 4217027 (1980-08-01), MacChesney et al.
"Extrusion of Fused Silica Cladding Tubes", Coucoulas, Technical Digest of the Third International Conference on Integrated Optics and Optical Fiber Communication, p. 112, Apr. 1981.
Coucoulas Alexander
Spainhour Carroll D.
Kirk D. J.
Lindsay, Jr. Robert L.
Western Electric Company Inc.
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