Patent · US Expired

Process for reducing vibrations of successive sets of rolls and a roll arrangement having reduced vibratory tendencies

US5024150A · kind A · utility

8Cited by

9References

18Claims

0Family size

Assignee

Eduard Kusters Maschinefabrik GmbH & Co. KG · DE

Inventors

Berhard Johannes Brendel · Norderstedt, DE
Gunter Schrors · Tönisvorst, DE

Key dates

Filing date	May 8, 1989
Grant date	Jun 18, 1991
Priority date	—
Expiry date	May 8, 2009

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD21G1/008
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

To reduce vibrations occurring in sets of rolls that are immediately successive along the direction of travel of a web conducted through the nips formed between the roll sets, a process, especially for use in double calendars used to treat paper webs, is disclosed in which the natural frequency of one set of rolls is altered with respect to the natural frequency of the other set of rolls. In this manner, randomly occurring vibrations in the first set of rolls do not produce a resonance excitation of the second set of rolls. A roll apparatus having reduced vibratory tendencies also is disclosed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.