Process for manufacturing an endless tubular felt and apparatus for implementing the process

US4614969A · kind A · utility

Assignee

• Thomas Josef Heimbach Gesellschaft mit Beschrankter Haftung & Co. · DE

Inventors

• Sebastian Gerundt · Eschweiler, DE
• Rolf Guse · Reutlingen, DE
• Walter Halterbeck · Düren, DE
• Gunter Hollenberg · Kreuzau, DE
• Gerhard Maier · Herbrechtingen, DE
• Karl-Heinz Muller · Wissen, DE

Key dates

• Filing date: Apr 24, 1984
• Grant date: Sep 30, 1986
• Expiry date: Apr 24, 2004

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D04H18/02
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A method and apparatus for producing an endless tubular felt includes superposing layers of tubular felt one upon the other and binding of the superposed layers together. A marking line is applied to the top surface of the superposed layers in continuous manner as the felt is trained about the driven rolls. The rolls include needle segments which move the felt axially of the roll. A scanner scans the position of the marking line shortly before the completion of one revolution. A controller compares the position of the marking line with a reference and causes the needle means to be adjusted to that the marking line corresponds with the reference.