EP 0165398 B1 19880120 - METHOD AND DEVICE FOR MANUFACTURING A YARN WITH A FRICTION SPINNING DEVICE
Title (en)
METHOD AND DEVICE FOR MANUFACTURING A YARN WITH A FRICTION SPINNING DEVICE
Publication
Application
Priority
CH 245084 A 19840518
Abstract (en)
[origin: US4660371A] In a method and an apparatus for producing a yarn by means of friction spinning drums, a fiber sliver is drawn by a drafting mechanism to a body of fibers and transferred to a first perforated friction spinning drum of such friction spinning drums. At this first perforated friction spinning drum, the fibers are entrained by a suction air stream, produced by a suction passage located in the first perforated friction spinning drum, and are then fed into a converging space formed by and between the friction spinning drums. In this converging space the fibers are twisted into a spun yarn. The spun yarn is withdrawn by withdrawal rollers located near end faces of the friction spinning drums. The suction air stream required for entraining or catching the fibers is limited by walls forming the suction passage. The advantage of this apparatus is that the fibers are mechanically guided over the whole length of their travel path, i.e. from the body of fibers to the twisted yarn. As a result, the fibers never swim freely.
IPC 1-7
IPC 8 full level
D01H 4/16 (2006.01); D01H 1/11 (2006.01); D01H 4/38 (2006.01)
CPC (source: EP US)
D01H 1/11 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0165398 A1 19851227; EP 0165398 B1 19880120; AT E32109 T1 19880215; AU 4094585 A 19851121; AU 573327 B2 19880602; DE 3561475 D1 19880225; IN 164144 B 19890121; JP H0149806 B2 19891026; JP S60246824 A 19851206; US 4660371 A 19870428; US 4783956 A 19881115
DOCDB simple family (application)
EP 85104480 A 19850412; AT 85104480 T 19850412; AU 4094585 A 19850409; DE 3561475 T 19850412; IN 116MA1985 A 19850212; JP 8149885 A 19850418; US 73484585 A 19850515; US 94198186 A 19861215