Production of glass fibers

Details Production of glass fibers Production of glass fibers

1975-05-02

1976-10-12

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 2, 65 12, 65125, 65132, 65347, C03B 3702

Patent

active

039855309

ABSTRACT:
In the production of glass fibers by the use of a multi-tipped bushing arranged beneath an opening in the floor of a fore-hearth along which the molten glass flows, an apertured cover plate is disposed across the opening at or near its bottom and carries an upwardly extending duct connecting the aperture in the cover plate with a position in the fore-hearth above the floor and below the normal surface level of the glass, so that molten glass is supplied to the bushing from this position, where the glass is uninfluenced by cooling effects, and on its way thence to the bushing the glass can only contact the surface of the duct which is kept hot by the molten glass in the floor opening outside the duct. The risk of divitrified glass reaching the bushing and causing breakages is thereby much reduced.

REFERENCES:
patent: 2190296 (1940-02-01), Richardson
patent: 2198742 (1940-04-01), Salskov-Iversen
patent: 2212528 (1940-08-01), Slayter
patent: 3390972 (1968-07-01), Froberg

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