Yarn spinning apparatus and process

US4130983A · kind A · utility

Assignee

• Barmag Barmer Maschinenfabrik Aktiengesellschaft · DE

Inventors

• Peter Dammann · Remscheid, DE
• Heinz Schippers
• Herbert Turk · Remscheid, DE
• Herbert Schiminski · Hückeswagen, DE

Key dates

• Filing date: Mar 28, 1977
• Grant date: Dec 26, 1978
• Expiry date: Mar 28, 1997

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D01H4/16
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Yarn spinning machinery and process utilizing a pair of perforated sieve belts, cylindrical sieve drums or hyperboloid sieve drums for twisting staple fibres at a line of yarn formation wherein the sieve members are moving in opposite directions while air currents are drawn through the sieve members on opposite sides of, and in opposite, twist-assisting flow directions, the line of yarn formation.