Method and apparatus for continuously taking-off a thread alternately from one of two parallel bobbin package arranged side by side
US4235393A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1979 |
| Grant date | Nov 25, 1980 |
| Priority date | — |
| Expiry date | Feb 21, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/31
- WIPO fieldHandling
- WIPO sectorMechanical engineering
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 …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.