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Expired
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SYKES W R INTERLOCKING SIGNAL
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SYKES W R INTERLOCKING SIGNAL
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Application filed by SYKES W R INTERLOCKING SIGNALfiledCriticalSYKES W R INTERLOCKING SIGNAL
Application grantedgrantedCritical
Publication of GB190916446ApublicationCriticalpatent/GB190916446A/en
B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L23/00—Control, warning, or like safety means along the route or between vehicles or vehicle trains
B61L23/08—Control, warning, or like safety means along the route or between vehicles or vehicle trains for controlling traffic in one direction only
B61L23/12—Control, warning, or like safety means along the route or between vehicles or vehicle trains for controlling traffic in one direction only partly operated by train
GB190916446D1909-07-141909-07-14Improvements in Railway Signalling.
ExpiredGB190916446A
(en)