Heatable glazing or calendering roll

Details Heatable glazing or calendering roll Heatable glazing or calendering roll

1986-10-08

1988-04-05

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29110, 29130, B21B 100

Patent

active

047349662

ABSTRACT:
A heatable glazing or calendering roll which includes a cylindrical hollow body, bearing journals for each end of the cylindrical hollow body, a displacement body arranged in the cylindrical hollow body, and supply and discharge lines in each bearing journal for a fluid heat carrier which flows through the annular gap between the displacement body and the cylindrical hollow body. A cylindrical flow chamber is provided at each end between the displacement body and the bearing journals and guiding means are arranged in each flow chamber, to accelerate the heat carrier at the inlet end in the peripheral direction and slow down the heat carrier from its peripheral speed at the outlet end, so that there can no longer occur any significant whirls. In this manner the otherwise occurring loss of pressure of the heat carrier can be reduced to a third or a quarter of the otherwise usual value.

REFERENCES:
patent: 1563216 (1925-11-01), Moog
patent: 3950897 (1976-04-01), Birkenstack et al.
patent: 4187594 (1980-02-01), Appenzeller
patent: 4459726 (1984-07-01), O'Brien et al.
Vortrag, "Verbesserung des Papierprofils und der Glatte durch beheizte Glattwerk- und Kalanderwalzen", von Peter Rothenbacher, Erich Vomhoff und Michael Zaoralek auf der Haupttagung des OZEPA an 18.10.1984 in Klangenfurt.

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