The Lever Lock Circuit

Railway ‘N’ Style Frame Four Foot Point Circuits & The Lever Lock Circuit

‘N’ Style Frame Four Foot Point Circuits ‘N’ style frames are manually operated and at the time of writing (March 2007) are still in use, mainly on the SSL lines. However these will be gradually phased out as lines are re-signalled. In essence, the circuits used to control the points are very similar to the […]

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