Pressure rolling nip line pressure control

US4432277A · kind A · utility

Assignee

• Eduard Kusters · DE

Inventor

• Werner Hartmann · Hamburg, DE

Key dates

• Filing date: May 21, 1981
• Grant date: Feb 21, 1984
• Expiry date: May 21, 2001

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21G1/022
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Cooperating hard and soft paper calendering rolls have probes for measuring the soft roll's temperature at different zones along its length and units for controlling the nip line pressure in each zone in dependence of the zone's measured temperature.