Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1981-05-06
1984-03-20
Jillions, John M.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
226 42, 226 45, 367 96, 318 6, 318606, 318685, B65H 2320
Patent
active
044376197
ABSTRACT:
A catenary-like section of traveling web material hanging between a support point and a stepping motor-driven reel rotating to collect or dispense the material is maintained by regulating the stepping motor rate of rotation in accordance with a control signal output of an ultrasonic transducer operating in the pulse/echo mode to continuously monitor the distance between the low point of the catenary-like section and the transducer. A microcomputer connected between the transducer and the motor accelerates and decelerates the rate of stepping motor rotation in accordance with a predetermined program to maintain the catenary section during changes in the distance between the section low point and the transducer.
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IBM Technical Disclosure Bulletin, vol. 13, No. 8, Jan. 1971.
Cary Hall
Marquard John F.
Cary Hall
Jillions John M.
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