Press roll with controllable deflection

Details Press roll with controllable deflection Press roll with controllable deflection

1976-12-10

1978-05-16

Guest, Alfred R.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

B21B 1302

Patent

active

040890945

ABSTRACT:
A press roll for treating sheet material such as paper and suitable for use in the calender or press section of a paper machine. The roll includes a robust stationary shaft and a shell coaxially surrounding and spaced from the shaft and rotatable with respect thereto. In the gap between the shaft and shell is a sealing structure which surrounds a pressure zone in this gap to seal off this pressure zone, fluid under pressure being supplied to the zone by way of a duct which extends through the shaft, so that the fluid pressure in the pressure zone can be controlled to control deflection of the roll at its shell.

REFERENCES:
patent: 3119324 (1964-01-01), Justus
patent: 3611529 (1971-10-01), Hold et al.
patent: 3638292 (1972-02-01), Gaghan
patent: 3802044 (1974-04-01), Spillmann et al.

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