Abstract
The vacuum machine gathers the required glass by dipping the parison mold into the fluid bath under simultaneous suction from the free glass surface. A prerequisite for perfect operation of the machine is thermal homogeneity to a high degree in the gathered glass. Unfortunately the glass is cooled considerably because of the dipping of the relatively cool parison mold into the glass and because of the cool strand of glass formed when the mold is lifted. Therefore the next mold could not be allowed to take up glass at the same place. This peculiarity of the suction machine is the reason that machines having high outputs cannot withdraw the glass directly from the working end of the tank, but demand special intermediary chambers.
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References
Dralle-Keppeler: Die Glasfabrikation, 2nd Ed., München and Berlin: R. Oldenbourg Vol. I, p. 653, and Vol. II, p. 1128.
Severin, H.: Die Entwicklung der Roirant-Maschine A 6. Glastechn. Ber. 20 (1942) 65.
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© 1969 Springer-Verlag Berlin Heidelberg
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Trier, W. (1969). Revolving Pots. In: Giegerich, W., Trier, W. (eds) Glass Machines. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-28676-0_13
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DOI: https://doi.org/10.1007/978-3-662-28676-0_13
Publisher Name: Springer, Berlin, Heidelberg
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