EP 0162367 B2 19930804 - METHOD AND DEVICE FOR PERFORMING THE PIECING OPERATION IN AN OPEN-END SPINNING MACHINE
Title (en)
METHOD AND DEVICE FOR PERFORMING THE PIECING OPERATION IN AN OPEN-END SPINNING MACHINE
Publication
Application
Priority
- DE 3418780 A 19840519
- DE 3422526 A 19840616
Abstract (en)
[origin: US4653260A] To improve the re-piecing operation, especially in terms of its success rate, at high spinning speeds, the free thread end cut to the length of a piecable end and retained after cutting the length is exposed to a turbulent air flow which causes it to execute whiplash-like oscillations. The surface of the thread end is thereby roughened. The thread end prepared in this way is subsequently transferred to the fiber-collecting surface of the open-end spinning apparatus. The roughening of the surface of the free thread end is accelerated when the end is whipped against an edge-like projection or a rough surface.
IPC 1-7
IPC 8 full level
D01H 4/48 (2006.01)
CPC (source: EP US)
D01H 4/50 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0162367 A1 19851127; EP 0162367 B1 19880810; EP 0162367 B2 19930804; BR 8502325 A 19860121; CS 276711 B6 19920812; CS 360285 A3 19920318; DE 3564296 D1 19880915; HK 31593 A 19930408; SG 67691 G 19930219; US 4653260 A 19870331
DOCDB simple family (application)
EP 85105561 A 19850507; BR 8502325 A 19850516; CS 360285 A 19850520; DE 3564296 T 19850507; HK 31593 A 19930401; SG 67691 A 19910819; US 73532785 A 19850517