Patent · US Expired

Method and apparatus for controlling the thread joining process in an open end rotor spinning machine

US4472933A · kind A · utility

3Cited by

8References

5Claims

0Family size

Assignee

W. Schlafhorst AG & Co. · DE

Inventors

Hans Raasch · Wittlich, DE
Manfred Lassmann · Nettetal, DE

Key dates

Filing date	Nov 12, 1982
Grant date	Sep 25, 1984
Priority date	—
Expiry date	Nov 12, 2002

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01H4/50
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Method for controlling a thread joining process taking place by starting a rotor in an open end rotor spinning machine, which comprises beginning unwinding of the thread, subsequently controlling the thread unwinding speed in accordance with the rotor speed, and controlling at least one of the sliver drawing-in speed and the fiber feeding speed in accordance with the thread unwinding speed, and an apparatus for carrying out the method.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.