Patent · US Expired

Blocking device for rovings on spinning machine draw frames

US4484376A · kind A · utility

24Cited by

3References

18Claims

0Family size

Assignee

SKF Kugellagerfabriken GmbH · DE

Inventors

Alfred Glock · Stuttgart, DE
Rudolf Schon · Stuttgart, DE
Bernhard Schonung · Echterdingen, DE
Kurt Seebo · Eßlingen, DE

Key dates

Filing date	Dec 28, 1981
Grant date	Nov 27, 1984
Priority date	—
Expiry date	Dec 28, 2001

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01H13/188
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A drawing frame for a spinning machine is provided with a blocking mechanism movable into a position between the upper and the lower feed rollers in the event of yarn breakage, to lift the roving from contact with the driven roller. A roving holder facilitating the holding of the tuft end of the roving between the drawing and outlet rollers is provided. This latter apparatus is coupled to the means for actuating the blocking mechanism for synchronous operation and is provided downstream of the inlet roller. It comprises a table extending beneath the roving and a rotatable shaped arm above the roving which arm is movable by the switching mechanism to simultaneously hold the front end of the roving.

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