Winding – tensioning – or guiding – Tension control or brake – Take-up coil drive control
Patent
1996-01-25
1997-12-16
Jillions, John M.
Winding, tensioning, or guiding
Tension control or brake
Take-up coil drive control
2424135, 2424171, B65H 2304, B65H 3504
Patent
active
056975732
ABSTRACT:
A belt-like material stably transferring apparatus an absorbing and feeding apparatus for continuously absorbing and feeding the belt-like material by use of a difference in air pressure. The absorbing and feeding apparatus comprises a reserving chamber for absorbing and feeding the belt-like material to be reserved therein, and a pressure detecting chamber connected to the reserving chamber through a slit. The reserving chamber has an opening portion for feeding the belt-like material, and blowers and are connected at a position, which is opposite to the opening portion. The pressure of the pressure detecting chamber is changed in accordance with the change of the pressure in the reserving chamber connected to the pressure detecting chamber through the slit. The pressure of the reserving chamber is changed in accordance with the amount of absorbing and feeding the belt-like material absorbed and fed to the reserving chamber. Due to this, the pressure of the pressure detecting chamber is detected by pressure detectors, thereby the amount of absorbing and feeding the belt-like material absorbed and fed to the reserving chamber is detected. The belt-like material stably transferring apparatus comprise analog cards for controlling the amount of supplying the belt-like material based on the amount of absorbed and fed belt-like material.
REFERENCES:
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patent: 3785588 (1974-01-01), Schramm
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patent: 4377251 (1983-03-01), Kinchelde et al.
patent: 4399958 (1983-08-01), Dupont
patent: 5505401 (1996-04-01), Lamothe
Fukuchi Junichi
Tsumori Hisaki
Ueno Junji
Yoshino Toshikazu
Japan Tobacco Inc.
Jillions John M.
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