Apparatus for automatically switching off and disconnecting an e

Details Apparatus for automatically switching off and disconnecting an e Apparatus for automatically switching off and disconnecting an e

1982-03-24

1983-09-13

Truhe, J. V.

Electricity: motive power systems

With particular motor-driven load device

Tension-maintaining type of motor-control system

242 45, 242 18R, 242 18DD, B65H 5402

Patent

active

044045018

ABSTRACT:
A circuit for automatically disconnecting a shaft drive spinning a textile winding bobbin and automatically substituting a circumferential cylinder drive for the shaft drive is disclosed. The cylinder drive becomes effective a short time after the start of the textile winding process. A signal proportional to the torque of the shaft drive motor is stored in a storage amplifier shortly after the start of the winding process. If the continuously measured instantaneous current value of the shaft drive exceeds, when both drives operate in parallel, the stored current value, a command to switch off the shaft drive is given.

REFERENCES:
patent: 3536272 (1970-10-01), Ueyama
patent: 3917182 (1975-11-01), Lenk
patent: 3973739 (1976-08-01), Nilgens et al.
patent: 4025830 (1977-05-01), Delaporte
patent: 4043517 (1977-08-01), Jahrig
patent: 4069985 (1978-01-01), Lohest et al.
patent: 4125881 (1978-11-01), Eige et al.
patent: 4146824 (1979-03-01), Flint et al.

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