Winding – tensioning – or guiding – Strand unwinding device
Patent
1979-02-21
1980-11-25
Christian, Leonard D.
Winding, tensioning, or guiding
Strand unwinding device
242130, B65H 4900
Patent
active
042353939
ABSTRACT:
A method of, and apparatus for, taking-off a thread or the like alternately from one of two bobbin packages arranged side by side in a creel for textile machines. The method contemplates taking-off a thread from a bobbin package, the tail end of such removed thread being knotted to the lead end of an essentially parallelly arranged reserve bobbin package. The knot is formed by first pulling the leading thread end of the reserve bobbin package through a thread take-off opening operatively associated with such reserve bobbin package. Then the thread is pulled in a direction opposite to the thread take-off direction through or at a location near a take-off opening operatively associated with the bobbin package from which thread is in the process of being removed, in other words the momentary withdrawal bobbin package. A loop, which progressively disappears as the thread take-off process switches-over to the reserve bobbin package, is formed by the knot connecting the leading end of the reserve bobbin package to the tail end of the bobbin package being unwound.
The apparatus for performing the method is mounted upon a support member of the bobbin package creel and is provided with two pivotable wing members which extend upwardly at an inclination, each wing member having an extended or elongate opening. Two wires mounted on each wing member form the related thread take-off opening. Each such thread take-off opening is arranged in the extension of the bobbin axis of the associated bobbin package when the related wing member is in its working position.
REFERENCES:
patent: 2202937 (1940-06-01), Wolfe
patent: 2534340 (1950-12-01), Chaya et al.
patent: 2588053 (1952-03-01), Smith et al.
Schenkel Eduard
Thalmann Dieter
Christian Leonard D.
Kleeman Werner W.
Rieter Machine Works Ltd
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