Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1978-01-16
1979-08-21
Gilreath, Stanley N.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
139452, B65H 5120
Patent
active
041650492
ABSTRACT:
A rotatable shaft carries a winding instrumentality whereby thread to be temporarily stored is coiled around a thread drum rotatably mounted on the shaft. Rotation of the thread drum in the direction of shaft rotation is prevented by concentric relatively fixed and movable brake elements, the fixed one secured to housing for the apparatus, the movable one coaxially secured to the thread drum. One of the brake elements has a circumferential surface from which elongated resilient fingers project, the fingers being more or less radial to said surface and having their tips normally engaged under flexing bias against a circumferential braking surface on the other brake element. The thread passes through the zone of the fingers, and the several fingers are so inclined to radials from the common center of the brake elements that the thread, or a guide tube through which it extends, can flexingly cam each finger, in turn, out of engagement with the braking surface and pass around the finger.
REFERENCES:
patent: 3411548 (1968-11-01), Pfarrwaller
patent: 3720384 (1973-03-01), Rosen
patent: 3737112 (1973-06-01), Tellerman et al.
patent: 3759300 (1973-09-01), Pfarrwaller
patent: 3761031 (1973-09-01), Pfarrwaller
patent: 3776480 (1973-12-01), Lawson
patent: 3791598 (1974-02-01), Vischiani et al.
patent: 3834635 (1974-09-01), Pfarrwaller
patent: 3944156 (1976-03-01), Jacobsson et al.
patent: 3971522 (1976-07-01), Pfarrwaller
Pejchal Karel
Tholander Lars H. G.
AB IRO
Gilreath Stanley N.
Nilles James E.
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