Schott Ag

Carl-Zeiss-Stiftung

Wolfgang Münch

Roland Fuchs

Gregor Rösel

Ulrich Lange

Holger Wegener

Erhard Dick

Holger Hunnius

Erich Fischer

Alexander Glacki

Christian Breitbach

Anton Winkelmann

Robert Rühl

An apparatus is provided for producing thin glass ribbons from molten glass. The apparatus includes a drawing tank, a direct heater, and an indirect heater. The drawing tank has a lower elongated nozzle opening through which the molten glass can exit downwards. The direct heater has one or more heating circuits operable to heat the drawing tank in a first heating zone. The direct heater has a power source for each on the heating circuits. Each heating circuit has connections to connected to a wall of the drawing tank so that current from the power source flows through at least a portion of the wall and heats the wall. Each heating circuit also includes current-carrying portions of the wall. The indirect heater has one or more heating elements to heat the drawing tank in a second heating zone.

Apparatus and method for producing glass ribbons

The present invention relates to a method for cooling a space around a sleeve shaft, a device for guiding a fluid along an outer surface area of a sleeve shaft, a sleeve shaft including such a device, and a refractory tube with such a sleeve shaft inserted. The present invention also relates to a system including such a device, which system may also include such a sleeve shaft and such a refractory tube.

Method for cooling a space around a sleeve shaft, device for guiding a fluid along an outer surface area of a sleeve shaft, sleeve shaft comprising such a device, refractory tube with such a sleeve shaft inserted and system comprising such a sleeve shaft and/or such a refractory tube

A system for use in a glass drawing process includes: a tensioning element; a refractory tube having a tubular element and a surface element, the refractory tube being configured so molten glass runs onto a contact surface area of the refractory tube during a glass drawing process, the contact surface area of the refractory tube being allocated at least in part on the surface element, the surface element covering at least one surface of an end section of the tubular element, and the surface element projects at least in part over the end section of the tubular element, at least one portion of the part of the surface element projecting over the end section of the tubular element being connected at least in part to the tensioning element; and a carrier that carries the refractory tube and is connected with the refractory tube in a non-rotating manner.

System for a glass drawing process and method for adjusting a system for a glass drawing process

A device for the production of a glass rod is provided. The device has a Danner blowpipe constructed to avoid problems attributed to different heat expansion coefficients of the participating materials. The Danner blowpipe has an outer metal jacket surrounding a ceramic body and defines a supply end and a discharge end of the blowpipe. A clamping plate is provided at both the supply and discharge ends. The clamping plate on the discharge end is rigidly joined with a shaft and engages the outer metal jacket at the discharge end. The clamping plate on the supply end is joined in an axially displaceable manner on the shaft, which is rigidly joined with a pressure plate against displacement in an axial direction. A pressure spring is disposed between the pressure plate and the clamping plate on the supply end to urge the plates away from one another.

Device for producing a glass rod

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Bubenheim, Germany

Wolfgang Münch