RA 8487 NORTH EASTERN RAILWAY SINGLE LINE CROSSING INDICATOR ship-zone-c Its sole purpose was to

Its sole purpose was to prevent the distant arm showing "OFF" with the Stop arm at danger

this key is a "B" pattern configuration

the signalman would go to the pumphouse and start the large "Blackstone" oil engine which drove the pump

this locomotive most of its working like at Maesteg Colliery St Johns wash plant

All  the  block indicators and bells were effectively taken out of circuit and the instruments in the adjacent boxes were connected

RA 8487 NORTH EASTERN RAILWAY SINGLE LINE CROSSING INDICATOR ship-zone-c Its sole purpose was toThese North Eastern Railway crossing indicators are seldom turn up for sale, this instrument would have been installed in a small crossing box on a single line and its purpose was to indicate to the crossing keeper from which directions a train would approach the crossing. The crossing keeper would then know whether to clear up signals or down signals. The signalman at the end where the train was being signalled from would operate a switch on his