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1. AU2002213852 - Device for producing a glass rod

Office Australie
Numéro de la demande 2002213852
Date de la demande 14.08.2001
Numéro de publication 2002213852
Date de publication 21.02.2002
Type de publication A
CIB
C03B 17/04
CCHIMIE; MÉTALLURGIE
03VERRE; LAINE MINÉRALE OU DE SCORIES
BFABRICATION OU FAÇONNAGE DU VERRE, DE LA LAINE MINÉRALE OU DE SCORIES;  TRAITEMENTS ADDITIONNELS DANS LA FABRICATION OU LE FAÇONNAGE DU VERRE, DE LA LAINE MINÉRALE OU DE SCORIES
17Façonnage du verre par coulée, poussée ou étirage vers le bas ou latéral au travers de fentes ou par écoulement au-dessus de lèvres
04Façonnage de tubes ou tiges par étirage à partir d'ustensiles fixes ou tournants ou à partir de tuyères
Déposants Carl-Zeiss-Stiftung trading as Schott Glas
Inventeurs Dick, Erhard
Fischer, Erich
Fuchs, Roland
Munch, Wolfgang
Ruhl, Robert
Winkelmann, Anton
Données relatives à la priorité 10048815 29.09.2000 DE
Titre
(EN) Device for producing a glass rod
Abrégé
(EN)
The invention relates to a device for producing a glass rod. The device comprises a Danner blowpipe (1); a nozzle for applying stream of glass to the surface of the Danner blowpipe (1) at one end of said blowpipe (supply end) at a relatively high temperature in order to form a glass film, which is removed at the other end (discharge end) in the form of a bulb at low speed. According to the invention, the device is characterised as follows: the Danner blowpipe (1) is constructed as follows: the peripheral wall consists of an external metal jacket (2) and a ceramic body (3) surrounded by said jacket; a respective clamping plate (6.1, 6.2) is provided at the supply end and at the discharge end; the discharge-end clamping plate (6.2) is connected in a fixed manner to the shaft (6); the supply-end clamping plate (6.1) can be axially displaced on the shaft (6); the supply end of the shaft (6) is connected to a pressure plate (4) in a fixed manner to prevent an axial displacement; a pressure spring (7), which forces apart the pressure plate (4) and the supply-end clamping plate (6.1), is connected between the pressure plate (4) and the supply-end clamping plate (6.1); the discharge-end clamping plate (6.2) engages with the discharge end of the jacket (2).