The Signalling Record Society
ELR to RailRef Correlation - ELR Codes U
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Signal Fact 15
E A Cowper invented the railway detonator in 1841. Used to protect trains that had come to a stand unexpectedly.
First adopted by the Great Western Railway, the other companies soon followed suit.
Detonators are still used today.
|UCJ||yes||Carlisle, Upperby Junction - Caldew Junction||NW962
|UCX||Caldercruix Upper Branch||NB247|
|UDS||yes||Doncaster, Up Decoy Sidings + Low Ellers Curve||SY011|
|UHL||yes||Wembley Central - Willesden High Level||NW014|
|ULR||yes||Carlisle Upperby Junction - London Road Junction (Through Siding)||NW963|
|UPG||yes||Upminster - Grays||MR042|
|USS||yes||Upside Sidings, Euston||NW002|
|USY||yes||Westbury Up Sidings|