Method and device for compensating tension forces across the width of a moving web

US5663510A · kind A · utility

Assignee

• Erhardt & Leimer GmbH · DE

Inventors

• Heinrich Niemann · Enger, DE
• Johannes Wulf · Gütersloh, DE

Key dates

• Filing date: Jan 16, 1996
• Grant date: Sep 2, 1997
• Expiry date: Jan 16, 2016

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2515/32
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A method and a device for compensating and equalizing the tension forces across the width of a moving web makes use of a tension compensation roll, which is pivotably supported, and rotatable around a pivotal axis. In the presence of a difference in the tension force across the width of the moving web, the tension compensation roll is pivoted via gears with teeth to an extent such that the tension forces in both halves of the web are equalized.