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Method and apparatus for processing glass
| Details |
Inventors: Fournier, Wilfred A.; Rieser, Elmer P.;
Assignee: Owens-Corning Fiberglas Corporation (Toledo, OH)
Primary Examiner: Lindsay, Jr.; Robert L.
Assistant Examiner:
Attorney, Agent or Firm: Overman; John W., Hudgens; Ronald C., Ernsberger; Harry O.
This invention embraces a method of and apparatus for processing heat-softenable fiber-forming material, such as glass, involving treatment of a surface of a feeder from which flow streams of the heat-softened glass through the establishment of an environment at the surface in which a heat-decomposable gas is heat decomposed providing a gas resulting from the decomposition of a character promoting separation of the glass from the surface thereby minimizing or eliminating the tendency for the material to flood at the feeder surface, effecting pressure through the heat-softened glass in a supply chamber, transferring glass from the chamber to the stream feeder, and effecting pressure through the heat-softened glass in the feeder to prevent or eliminate permeation or filtering of the gas formed by heat decomposition through the material of the feeder into the softened glass thereby enhancing the uniformity of glass streams flowing from the feeder. |
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DETAILED DESCRIPTION We claim: 1.
The method of processing glass comprising establishing a supply of molten glass in a chamber, transferring molten glass from the supply into a stream feeder, establishing gas pressure on the molten glass in the stream feeder, flowing streams of glass from the feeder under the influence of the pressure on the molten glass in the feeder, attenuating the streams of glass to fibers, and establishing gas pressure on the molten glass in the chamber to effect transfer of molten glass from the chamber into the stream feeder.
2.
The method according to claim 1 including interrupting transfer of glass from the chamber into the feeder when the glass in the feeder reaches a predetermined level, and initiating transfer of glass from the chamber into the feeder when the glass in the feeder falls below the predetermined level.
3.
Apparatus for processing heat-softened glass including, in combination, a glass melting chamber, a stream feeder having a floor section provided with a plurality of orifices through which flow streams of heat-softened glass, means connecting the melting chamber with the stream feeder for flowing glass from the chamber into the stream feeder, means for establishing gas pressure on the heat-softened glass in the stream feeder, means for establishing gas pressure on the heat-softened glass in the melting chamber, feeding means for feeding glass into the melting chamber, valve means for controlling flow of glass from the melting chamber into the stream feeder, sensing means for sensing the level of molten glass in the stream feeder, means activated by the sensing means for actuating said valve means, distributor means disposed adjacent the stream flow section, said distributor means adapted to deliver an inert gas and a heat-decomposable hydrogen-bearing material at the stream flow section, the hydrogen-bearing material being decomposed by the heat of the glass providing hydrogen at the surface of the stream flow section to promote separation of the glass from the surface of the stream flow region, and means for attenuating the glass streams to fibers
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Image Analysis 
