Control arrangement for railway track points

1,087,662. Route setting system. WERK FUR SIGNAL UND SICHERUNGSTECHNIK BERLIN VEB. Dec. 9, 1964, No. 50112/64. Heading B7N. In an arrangement for controlling the release of a set of points in a route setting system, the points are released when a train has occupied and cleared a track section preceding the points and the points section and is occupying the track section following the points. When a train enters the section W1 preceding the points section W2, relays P1 and Gl1 pick up and release respectively and change over the position of their contacts from that shown. As a result a latching type relay A21 is energized and changes over its contacts A23, A24. When the train enters the points section W2 relay GL2 releases and relay P2 picks up via a contact V21, which is closed when the points are locked, and contacts A23 and Gl24. When the train has cleared section W2 and is occupying the section W3 following the points relays P3 and G13 pick up and release respectively and energize relay A21 in the opposite direction. The release relay V2 for the points W2 is now energized via contacts P23, A24 and Gl25. Figs. 3, 4 and 5 (not shown) indicate how the arrangement is modified for both way working.