Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1976-03-10
1979-07-17
Gilreath, Stanley N.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
66132R, 139452, 242 4712, B65H 5120
Patent
active
041612973
ABSTRACT:
In a feeding device with constant adjustable tension for a yarn being fed from a yarn source to a yarn using machine, as a weaving machine, are provided: a fixed hollow body, around which the yarn coming from said source is wound into turns by an element rotating outwardly of said fixed body and coaxially thereto, to form thereon a yarn reserve from which the actual yarn is drawn, to be sent to said yarn using device, passing inside the fixed hollow body; an adjustable brake means cooperating with said fixed body, for braking the yarn with constant intensity, downstream of said yarn reserve; and a device associated with the fixed hollow body, for adjusting and keeping even the amount of said yarn reserve. The brake comprises a round element, formed by a solid central part and by a peripheral part with radial blades, arranged between an electromagnet mounted on said rotary element for winding the yarn, and the outer edge of said hollow body onto which the yarn gets wound, said blades being elastically bent at their ends with which they engage said edge, and said electromagnet housing the end of its core into an appropriate seat provided at the center of the solid part of said round element.
REFERENCES:
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patent: 3411548 (1968-11-01), Pfarrwaller
patent: 3490710 (1970-01-01), Muhlhausler
patent: 3782661 (1974-01-01), Deniega et al.
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patent: 3944156 (1976-03-01), Jacobsson et al.
patent: 3995786 (1976-12-01), Deniega
patent: 4037802 (1977-07-01), Calamani et al.
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