Woodford signal box

Woodford

Close up of the 59 lever Style 'N' lever frame, with part of the track diagram showing in the back ground.
pictures reproduced by kind permision courtsey of District Dave's Web site.

The 'N' Style lever frame at Woodford is a Westinghouse Style 'N' Power Frame and was mechanically interlocked between levers with electrical lever locking, The frame was formed of 5 x 12 way section which making a total of 59 levers, {5x12}-1 = 59 levers, as the last “lever” space is unavailable.

Woodford

A clearer view of the track diagram and the lever frame, with the telephone concentrator and computer booking system screen adjacent to the telephone concetrator.
pictures reproduced by kind permision courtsey of District Dave's Web site.

Woodford signal frame

Picture is reproduced by kind permission of the © Henry Davidson

Diagrams

Attached a railway and signaling track diagram from London Transport Central Line Extention 1946 - 1957. This diagram can be downloaded opened in your browser in Adobe PDF format provided the Adobe browser is loaded,

Adjacent boxes

South Woodford .