This page uses Cascading Style Sheets to present the content in the best possible manner. If you can see this message, then CSS (or JavaScript) is not enabled in your browser, and the page will not appear as the designer intended.

LMSS Masthead

Fostering Interest in Research & Modelling of the London, Midland & Scottish Railway


A Record of Large-Scale Organisation and Management,


Before 1923, railway telegraph circuits consisted almost wholly of single needle or sounder circuits. Whilst large numbers of these are still in use, a considerable proportion has been superseded and at the present time practically all main centres are linked by "creed" teleprinter circuits. Many station telegraph instruments have been abolished and replaced by telephones.

Extensive additions have been made to the railway exchange trunk telephone network. Thousands of miles of wires have been erected, but the most notable feature has been the introduction of carrier telephone systems superimposed over existing physical circuits. They have been most valuable where routes are congested and reduce the initial outlay and maintenance costs.

Return to index

Site contents Copyright © LMS Society, 2024