The Signalling Record Society
ELR to RailRef Correlation - ELR Codes X
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Signal Fact 70
Stevens & Son patended the first tappet locking frame.
Tappet locking gradually displaced other types of locking and became almost universal for mechanical signalling.
Explanation of column content is here.
| ELR | BR-NR | Line Description | RailRef |
|---|---|---|---|
| XRC | Crossrail Central Section | ||
| XRS | Crossrail South Section | ||
| XTD | yes | Charing Cross - Dover Western Docks | SE001 SE040 |
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