The Signalling Record Society
ELR to RailRef Correlation - ELR Codes V
This page should be regarded as “Work in Progress”. The
E A Cowper invented the railway detonator in 1841. Used to protect trains that had come to a stand unexpectedly.
Signal Fact 15
First adopted by the Great Western Railway, the other companies soon followed suit.
Detonators are still used today.