Process and apparatus for the production of glass foil

Details Process and apparatus for the production of glass foil Process and apparatus for the production of glass foil

1980-10-20

1981-12-01

Fisher, Richard V.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 251, 65 87, 65170, 65187, 65DIG5, C03B 1900, C03B 4004

Patent

active

043034365

ABSTRACT:
A process and apparatus for producing glass foil is disclosed in which a thin glass foil is produced by conveying a glass melt from a rotatable crucible of a smelting furnace through an annular distribution reservoir and a distributing disk having flow-through slots. Jets of glass emerge from the flow-through slots and are combined at a funnel-shaped wall into a hollow, cylindrical glass mass. Due to its weight and to heating by pressurized, gas-heated heating and cooling zones, the cylindrical glass mass flows downward, and is stretched until it reaches a pre-determined wall thickness by auxiliary conveyor belts. The hollow cylinder of glass is then split on one side by a separating device, flattened, conveyed to a bath of liquids, and then drawn-off at full width in the form of a glass foil by a draw-off guide roller. After the glass foil is drawn-off, the auxiliary conveyor belts are moved laterally so that they are no longer in physical contact with the glass cylinder. The glass foil is conveyed from the bath of liquids, through an after-treatment zone wherein the glass foil is treated, and to a device for coiling the treated glass foil.

REFERENCES:
patent: 2251727 (1941-08-01), Wellech et al.
patent: 2450115 (1948-09-01), Byrnes
patent: 2502312 (1950-03-01), Danner
patent: 2910805 (1959-11-01), Muller et al.
patent: 3257184 (1966-06-01), Glaser

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