Apparatus for preventing vibrations of a roll set

Details Apparatus for preventing vibrations of a roll set Apparatus for preventing vibrations of a roll set

1997-12-10

1999-06-29

Gerrity, Stephen F.

Presses

With additional treatment of material

Heating, cooling, or drying

100155R, 100176, B30B 1534, B30B 304, D21G 102

Patent

active

059152974

ABSTRACT:
An apparatus for reducing or preventing vibrations of a roll set of a paper making apparatus, wherein the roll set comprises at least two rolls of which at least one is a soft roll coated with a compressible coating and comprising a temperature control system. The natural vibrational frequency of the roll set is changed during the operation of the apparatus by changing the temperature of the coating of the at least one soft roll. The changing of the natural frequency prevents resonance on a natural frequency of the roll set.

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patent: 4471515 (1984-09-01), Takenaka et al.
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patent: 4910842 (1990-03-01), Brendel
patent: 5024150 (1991-06-01), Brendel et al.
patent: 5081759 (1992-01-01), Schiel
patent: 5244448 (1993-09-01), Niskanen et al.

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