Method for preventing vibrations of a roll set

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

1995-12-11

1998-06-23

Gerrity, Stephen F.

Presses

Methods

With heating or cooling

100336, 162206, D21G 100

Patent

active

057689857

ABSTRACT:
A method 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 at least one soft roll. The changing of the natural frequency prevents resonance on a natural frequency of the roll set.

REFERENCES:
patent: 3111894 (1963-11-01), Murray
patent: 3726338 (1973-04-01), Sorenson
patent: 4471515 (1984-09-01), Takenaka et al.
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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