Patent ID: 6883350

Claim:
In a hot forming unit or debiteuse for plate glass production, with a noble metal box encompassed by and contained in a highly heat-resistant ceramic frame and having a drawing slot matched to a cross section of a plate glass sheet to be produced, the improvement comprising: the ceramic frame ( 20 ) having longitudinal components ( 21 , 22 ) and lateral components ( 23 , 24 ), the longitudinal components ( 21 , 22 ) of the ceramic frame ( 20 ) and the longitudinal legs ( 11 , 12 ) of the noble metal box ( 10 ) resting against one another and held axially moveable against each other in a limited fashion, and the longitudinal legs ( 11 , 12 ) of the noble metal box ( 10 ) held in a stretched position by tension springs ( 17 ).