DEVICE FOR CONTROLLING PASSING LIGHT ON RAILWAY Russian patent published in 2017 - IPC B61L23/00 

FIELD: physics.

SUBSTANCE: device contains track circuits with track relays, an information input unit, a signal relay and a test enable relay, where the contacts of the signalling relays of adjacent block sections are connected to each other and to the traffic light bulbs, and the test inclusion switch contacts are connected to the control circuits of the signal generators of rail circuits of the block-section, a logic device with an element of free and occupied state of the rail circuits of the block-section common to the block-section and a slow-acting repeater element of the common circuit of a leaky relay. Moreover, the triggering device of the counter is installed in the logic device, each of these triggers is connected to the rear contact of the track relay of its section and the front contact of the track relay of the next along the train section, including the track circuits of the previous and the subsequent block sections. In addition, triggers of the test check, including the signalling relay, the closure of the path section and the fixation of the passage of testing.

EFFECT: increase in train movement safety.

3 dwg