Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of BE572331ApublicationCriticalpatent/BE572331A/xx
C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
C03B37/01—Manufacture of glass fibres or filaments
C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
C03B37/029—Furnaces therefor
C—CHEMISTRY; METALLURGY
C03—GLASS; MINERAL OR SLAG WOOL
C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
C03B2205/00—Fibre drawing or extruding details
C03B2205/60—Optical fibre draw furnaces
C03B2205/62—Heating means for drawing
C03B2205/63—Ohmic resistance heaters, e.g. carbon or graphite resistance heaters
C—CHEMISTRY; METALLURGY
C03—GLASS; MINERAL OR SLAG WOOL
C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES