SWITCH CONTROL DEVICE Russian patent published in 1997 - IPC

FIELD: railway transport; automatic signalling. SUBSTANCE: device has telecontrol signal transmitter, actuating relays of corresponding switch control circuits, telecontrol signal receiver, first branched track circuit located in area of first, base switch, including branch occupancy control relay connected to stationary power supply source through first front contacts of first and second switch track relays, third and common switch track relays and limited by insulating rail joints on rails of first and second shifting curved tracks of first switch, branch track occupancy relay and power supply sources. It has switch electric drives, flickering relays, three-unit shunting light signals corresponding switch control circuit cut-in relay. Direct repeater of third track relay, reverse repeater of corresponding branch track occupancy relay, and relay for preparation of switch control circuit for operation are installed in each track circuit. EFFECT: enhanced reliability and safety. 1 dwg