EP 0128863 B1 19870603 - METHOD AND DEVICE FOR MANUFACTURING A CORED YARN
Title (en)
METHOD AND DEVICE FOR MANUFACTURING A CORED YARN
Publication
Application
Priority
CH 269783 A 19830518
Abstract (en)
[origin: WO8404550A1] In a torsion apparatus (4) a torsion is imparted to a slubbing (1) provided from a roving frame (2). Parallel and appropriately orientated fibres (F) are applied to the rotating slubbing (1) to surround it. Owing to those fibres (F), the torsion of the slubbing is not completely lost after the torsion apparatus thereby allowing to obtain a high strength yarn (12). A rotary application member (8) which supplies the fibres (F) to the slubbing (1) comprises a perforated annular fibre supporting surface (9) behind which a vacuum is maintained. The parallel and properly orientated fibres are provided from a second roving frame (10) parallel to the first roving frame (2) and are deposited on the annular perforated fibre supporting surface (9). When the rotating slubbing (1) is in contact with the surface (9), it draws the fibres (F) from said surface (9). In order to keep the fibres (F) parallel and orientated when they are deposited on the slubbing (1), the speed of the annular perforated fibre supporting surface (9) is higher than the supply speed of the second roving frame (10) and smaller than the peripheral speed of the slubbing (1).
IPC 1-7
IPC 8 full level
D01H 7/02 (2006.01); D01H 1/11 (2006.01); D01H 7/92 (2006.01); D02G 3/36 (2006.01); D02J 3/06 (2006.01)
CPC (source: EP US)
D02G 3/367 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE FR GB IT
DOCDB simple family (publication)
EP 0128863 A1 19841219; EP 0128863 B1 19870603; AT E27621 T1 19870615; AU 2861884 A 19841204; AU 566834 B2 19871029; CA 1226182 A 19870901; CH 664773 A5 19880331; CZ 376684 A3 19930414; DD 218401 A5 19850206; DE 3464067 D1 19870709; ES 532636 A0 19850401; ES 8504280 A1 19850401; JP S59223324 A 19841215; SU 1314957 A3 19870530; US 4583355 A 19860422; WO 8404550 A1 19841122
DOCDB simple family (application)
EP 84810240 A 19840515; AT 84810240 T 19840515; AU 2861884 A 19840515; CA 454597 A 19840517; CH 18585 A 19840515; CH 8400077 W 19840515; CS 376684 A 19840518; DD 26313084 A 19840517; DE 3464067 T 19840515; ES 532636 A 19840518; JP 9892084 A 19840518; SU 3843340 A 19850117; US 61183484 A 19840518