Signaling column, has connectors and common and specific rods arranged to create identical angular positioning of common rod and displacement of specific rod from one stage to another

摘要

The column has conducting rods with a common rod (20A) and a specific rod (20C). Connectors (30) are fixed to a base and have two fixing points fixed to ends of the conducting rods, where angular displacement between two points corresponds to the ends of the rods. The connectors and the rods (20A, 20C) are arranged to create an identical angular positioning of the rod (20A) and displacement of the rod (20C) from one stage to another.