Method and apparatus for releasing an end yarn from entangled po

Details Method and apparatus for releasing an end yarn from entangled po Method and apparatus for releasing an end yarn from entangled po

1994-04-06

1996-09-10

Stryjewski, William

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 18EW, 242 19, 242 356E, B65H 5400, B65H 6904

Patent

active

055537987

ABSTRACT:
Method and apparatus for picking up an end yarn so as to fix the same on a yarn package comprising picking up an end yarn from a yarn package by a suction device so as to hold the end yarn therein in a drawn state, inserting an end yarn handling bar between the held end yarn and the package surface, revolving the yarn end handling bar along the package surface while maintaining the bar beneath an outermost yarn layer connected to the yarn end until a layered portion is formed, in which the yarn end held in a drawn state coincides with the outermost yarn layer, and ejecting a jet of pressurized fluid onto or in the vicinity of the layered portion so as to entangle the yarn end with the outermost yarn layer so that the yarn end is fixed on the package.

REFERENCES:
patent: 1527751 (1925-02-01), Seyfarth
patent: 3110450 (1963-11-01), Raasch
patent: 3652025 (1972-03-01), DiMauro
patent: 4384689 (1983-05-01), Bloomfield et al.
patent: 4760969 (1988-08-01), Otoshima et al.
patent: 4805845 (1989-02-01), Fluck et al.
patent: 4848077 (1989-07-01), Kawarabashi et al.
patent: 5082192 (1992-01-01), Langen et al.
patent: 5104052 (1992-04-01), Wey et al.
patent: 5131437 (1992-07-01), Shaw et al.

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