Winding – tensioning – or guiding – Support for a strand material holder – For bobbins
Patent
1976-09-21
1977-12-20
Christian, Leonard D.
Winding, tensioning, or guiding
Support for a strand material holder
For bobbins
242155R, B65H 4902, D02H 100, D03J 508
Patent
active
040636976
ABSTRACT:
A device for reducing the otherwise minimum unthreading distance between the end of a bobbin and an unthreading guide in a textile yarn unthreading machine. The device comprises a member which defines a formed edge surface, preferably in the form of a circular disc, mounted substantially perpendicular to the axis of the bobbin and concentric with this axis. The disc is positioned between the bobbin and the unthreading guide to define a specially shaped, yarn supporting edge. The positioning of the disc is such that, as the yarn passes over the edge of the disc while being unwound, the angle formed by the straight line which joins the edge of the disc and the facing edge of the bobbin relative to said axis is equal to the half-angle of unthreading. Further the angle formed by the straight line which joins the edge of the disc to the unthreading guide, relative to the said axis, is markedly greater than the half-angle of unthreading.
REFERENCES:
patent: 2274128 (1942-02-01), Chapman, Jr.
patent: 2377799 (1945-06-01), Markwood
patent: 2566801 (1951-09-01), Jackson et al.
patent: 2905409 (1959-09-01), Sheldon
patent: 2954181 (1960-09-01), Sawyer
patent: 3677489 (1972-07-01), Dilling
ASA S.A.
Christian Leonard D.
LandOfFree
Device for unthreading yarn from a bobbin does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for unthreading yarn from a bobbin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for unthreading yarn from a bobbin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-595625