at selected places along the route, e.g. intermittent control

Full Title

Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal > at selected places along the route, e.g. intermittent control

Child Classifications

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• B61L 3/04 controlling mechanically
• B61L 3/06 controlling by electromagnetic or particle radiation, e.g. by light beam
• B61L 3/08 controlling electrically
• B61L 3/14 to cut-off the power supply to traction motors of electrically-propelled vehicles