Electromechanical motor reversing

Details Electromechanical motor reversing Electromechanical motor reversing

1990-01-16

1991-04-09

Coe, Philip R.

Textiles: fluid treating apparatus

Machines

Single tub and automatic sequential operation mechanism

318281, 318284, 318443, D06F 3740

Patent

active

050053825

ABSTRACT:
An electromechanical A.C. motor reverser having a timed cam-driven SPDT switch with the side terminals thereof connected to separate motor stator coils. The movement of the transfer blade between contacts to break one motor coil circuit and complete the other reversing motor coil circuit is delayed sufficiently by the cam to permit the motor rotor speed to decay enought to enable reversal of rotation upon completion of the reversing coil circuit. The minimum contact transfer time is set at the period corresponding to two cycles of power line current.

REFERENCES:
patent: 1816033 (1931-07-01), Wilsey
patent: 2537155 (1951-01-01), Olsen
patent: 2756580 (1956-07-01), Castner
patent: 3247435 (1966-04-01), Baumhart et al.
patent: 3375685 (1968-04-01), Scott
patent: 3601675 (1971-08-01), Raotke

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