Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1993-02-02
1994-06-07
Gilreath, Stanley N.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
2421521, B65H 5120, B65H 5924
Patent
active
053182332
ABSTRACT:
A ball tension device for producing generally uniform tension in a traveling textile yarn, particularly in combination with a yarn storage and supply apparatus of the rotating drum type. A base portion has a yarn passageway with an upwardly facing annular ball seat. A ball freely rotatably rests on the seat to apply a force to a yarn passing over the seat and through the passageway. A ball retaining portion extends over the ball at an upward spacing sufficient to allow upward movement of the ball but insufficient to allow removal of the ball. These base and ball retaining portions project transversely from a mounting portion to provide a substantial open space to permit entry of a downwardly inclined traveling yarn. The ball retaining portion is imperforate to provide a cover for the ball and seat to shield the ball and seat from accumulation of lint. Similarly, the substantial open space around the ball and seat tends to minimize lint accumulation. The ball retaining portion is formed with an undersurface facing the ball and has an upwardly extending recess to accommodate upward movement of the ball while the ball retaining member otherwise retains the ball against displacement from the device. This recess may be elongated to accommodate transverse movement of the ball during threading. For the same purpose, the mounting portion may be formed with a recess in the surface facing the ball to permit movement of the ball transversely to accommodate threading.
REFERENCES:
patent: 2677511 (1954-05-01), Bley
patent: 3874613 (1975-04-01), Zollinger
patent: 3897916 (1975-08-01), Rosen
patent: 3931939 (1976-01-01), Rosen
patent: 4017038 (1977-04-01), Paepke
patent: 4137731 (1979-02-01), Jacobsson
patent: 4138866 (1979-02-01), Fecker et al.
patent: 4352471 (1982-10-01), Zust
patent: 4558834 (1985-12-01), Plucknett
patent: 4568038 (1986-02-01), Frentzel-Beyme
LandOfFree
Ball tension device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ball tension device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ball tension device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-787936