Method and apparatus for joining textile threads

US4217749A · kind A · utility

Assignee

• W. Schlafhorst AG & Co. · DE

Inventors

• Joachim Rohner · Wittlich, DE
• Reinhard Mauries · Mönchengladbach, DE
• Heinz Zumfeld · Wittlich, DE

Key dates

• Filing date: Nov 14, 1978
• Grant date: Aug 19, 1980
• Expiry date: Nov 14, 1998

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2701/31
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

Method of joining textile threads by means of an apparatus having a vortex chamber formed with an elongated slot for introducing therein threads that are to be joined, the threads being insertable into the vortex chamber adjacent one another and being held by clamping devices outside the vortex chamber, the threads being twistable together in the vortex chamber by compressed air supplied thereto and being thereby joined, which includes inserting the threads to be joined loosely and without tension into the vortex chamber so as to be looped about opposite end rims of the vortex chamber; twisting together the threads disposed loosely and without tension in the vortex chamber while they are tightly held by the clamping devices and slackening the thread tension to such an extent that a false twist imposed on the textile threads during twisting together of the threads and consequent shortening of the thread length causes the textile threads to come into contact with the end rims of the vortex chamber.