Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1989-06-26
1990-05-01
Gilreath, Stanley N.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 356E, B65H 5400, B65H 6708
Patent
active
049211790
ABSTRACT:
A yarn end unwinding apparatus includes a support base for supporting a yarn package in an upright disposition and a cooperating member. The cooperating member at least partially circumferentially surrounds the upright yarn package and includes a plurality of jet nozzles for directing jet streams of gas interiorly of the cooperating member. The jet streams of gas combine together to form a spiraling stream of gas which causes planetary motion of the package. The package moves in contacting relation along the inner surface of the cooperating member while simultaneously rotating about the package axis and this planetary motion of the package causes unwinding of the yarn end therefrom into position for subsequent package unwinding engagement. The support base preferably includes a pair of relatively movable semi-cylindrical portions.
REFERENCES:
patent: 3236464 (1966-02-01), Wey
patent: 3608843 (1971-09-01), Siedlich
patent: 4009840 (1977-03-01), Muller
patent: 4634065 (1987-01-01), Kupper et al.
patent: 4798348 (1989-01-01), Matsui et al.
patent: 4824037 (1989-04-01), Haberkorn
patent: 4842206 (1989-06-01), Kawasaki et al.
Surkamp Paul
Wirtz Ulrich
Gilreath Stanley N.
W. Schlafhorst & Co.
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