Controlled method for the production of clad glass rod

Details Controlled method for the production of clad glass rod Controlled method for the production of clad glass rod

1976-09-09

1978-02-28

Kellogg, Arthur D.

Glass manufacturing

Processes

With measuring, sensing, inspecting, indicating, or testing

65 85, 65162, 65163, 65DIG13, C03B 1516

Patent

active

040765121

ABSTRACT:
A method of producing clad glass rod of uniform diameter from which an optical fibre is drawn. The rate of drawing of the rod from a glass melt and the diameter of the drawn rod are sensed and the sensed values are fed to a coarse open loop control and a high gain closed loop control which regulate the draw speed of the rod and the movement of a cooling jacket which cools the rod as it is drawn.

REFERENCES:
patent: 2150017 (1939-03-01), Barnard
patent: 3471278 (1969-10-01), Griem, Jr.
patent: 3726656 (1973-04-01), Reid et al.

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