Control of break-up roller speed in open-end spinning unit

US3978646A · kind A · utility

Assignee

• Fried Krupp · DE

Inventors

• Herbert Hoffmann · Hennigsdorf, DE
• Rolf Neubert · Unterhaching, DE
• Friedrich Wachendorf

Key dates

• Filing date: Apr 25, 1975
• Grant date: Sep 7, 1976
• Expiry date: Apr 25, 1995

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S53/90
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

In an open-end yarn spinning unit, a break-up roller which is driven by transmission of driving force from the spinning rotor, without mechanical contact between the roller and the rotor, is subjected to a speed regulation by application of a retarding force without mechanical connection between the roller and the source of each retarding force.