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Installed on a special desk, there are two electric staff instruments, an inductor with diverter and communication devices on a vertical stand (local battery phone and telephone diverter with additional bell). In Estonian railway signalling electric token systems were used before semiautomatic and automatic block systems. Locomotive driver was required to have a token before […]

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Route locking system, invented by Soviet engineer Jevgeny Natalevich, enabled assistant station master to control the setting up of a route by pointsmen. Every point had an executive instrument and the control instrument was at assistant station master`s disposal. That way entering an occupied track was prevented. In Estonia Natalevich`s system was first introduced in […]

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