Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1988-03-17
1989-08-22
Gilreath, Stanley N.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 18DD, 242154, B65H 5406, B65H 5410
Patent
active
048588377
ABSTRACT:
A yarn storage and return device for yarn being wound on a conical bobbin driven at a constant speed. The device comprises a lever system for storing and returning the yarn and for regulating and monitoring the amount of stored yarn. The yarn is drawn into the storage position by an arm of the lever system and is then released (i.e. returned) from this storage position. This returning operation releases the yarn from its storage position and replaces it (returns it), to its normal feed path. The device also comprises a yarn tension measurer, an electric comparator, and an electric control unit to measure and compare the yarn tension, and to process an electric controlling signal to activate a drive motor. The drive motor actuates a tensioning element which affects the storage operation of the device.
REFERENCES:
patent: 3231216 (1966-06-01), Lemarchand
patent: 3640477 (1972-02-01), Furst
patent: 4002306 (1977-01-01), Raasch
patent: 4083506 (1978-04-01), Mander et al.
patent: 4113193 (1978-09-01), Raasch et al.
Wire and Wire Products, vol. 27, Apr. 1962, pp. 496-503, 538, 539 Patent Abstracts of Japan, vol. 10, No. 134 (M-479)[2191], 5/17/86.
Colli Luigi
Ferro Francesco
Montali Sergio
Gilreath Stanley N.
Savio S.p.A.
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