Station blocking between signal boxes in one yard

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

RAILWAYS

Subclass:

GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC

Child Classifications

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• B61L 21/02 Mechanical locking and release of the route; Repeat locks; Coupling of semaphores
• B61L 21/04 Electrical locking and release of the route; Electrical repeat locks
• B61L 21/06 Vehicle-on-line indication; Monitoring locking and release of the route
• B61L 21/08 Order transmission and reception arrangements for giving or withholding permission
• B61L 21/1 Arrangements for trains which are closely following one another