Patent · US Expired

Arrangement for open-end friction spinning

US4653264A · kind A · utility

2Cited by

5References

20Claims

0Family size

Assignees

Fritz Stahlecker · DE
Hans Stahlecker · DE

Inventors

Fritz Stahlecker · Geislingen an der Steige, DE
Kurt Lang · Penzberg, DE

Key dates

Filing date	Jun 9, 1986
Grant date	Mar 31, 1987
Priority date	—
Expiry date	Jun 9, 2006

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01H4/16
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

An arrangement is provided for open-end friction spinning including a pair of adjacently arranged suction rollers rotatable in the same rotational direction. One roller rotates into the wedge-shaped gap formation zone and the other rotates out of the wedge-shaped gap. It is provided that the suction slot of the suction insert inside of the roller rotating into the wedge-shaped gap is longer than the suction slot of the suction insert of the roller rotating out of the wedge-shaped gap. The portion of the suction slot of the roller rotating into the yarn formation zone which extends beyond the slot of the roller rotating out of the yarn formation zone is displaced circumferentially from the wedge-shaped gap so as to provide for enhanced spinning conditions in the region of the yarn tip.

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