slimjim
September 4th, 2002, 06:57 AM
Hi All,
I received this e-mail and want to help him. Does alyone have any links or info??
In the old times there was in Brazil a system of controlling the the traffic of trains between two stations called "electric staff". By the system a train only could leave the station "A" after receiving the "staff" (a bar of metal that was taken from a device) after the next station "B" had unlocked it by an electric current. Was there a similar device in your country? If so, could you tell me where can I get a photo of the device and details about how it worked?
I received this e-mail and want to help him. Does alyone have any links or info??
In the old times there was in Brazil a system of controlling the the traffic of trains between two stations called "electric staff". By the system a train only could leave the station "A" after receiving the "staff" (a bar of metal that was taken from a device) after the next station "B" had unlocked it by an electric current. Was there a similar device in your country? If so, could you tell me where can I get a photo of the device and details about how it worked?