Among the last active installations of ‘somersault’ signals has survived on NI Railways at Castlerock, County Derry, Northern Ireland.
The somersault is an antique variety of two-aspect semaphore where the signal arm and spectacle (lens) frame are separate pieces and move in opposite directions when the aspect changes. The name stems from a description of the signal motion.
Earlier this month Denis McCabe, Stephen Hirsch and I traveled from Dublin to pay a final visit to this classic signal installation and make photographs of modern NI Railways railcars with the antique hardware.
New NI Railway’s signalling is underway on this section of the Coleraine-Derry line. It is my understanding that in early November, NIR plans to close Castlerock’s cabin (signal tower) and the signals will be removed from service as part of a larger re-signalling scheme that will also eliminate this station as a passing point.
Although, I’d visited Castlerock previously, it had been a few years since I last photographed these old signals at work.
Special thanks to Colin Holliday reminding me of the pending changes to Castlerock signaling!
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