This is SBB, but still...at 2:15
https://www.youtube.com/watch?v=6hK4bGOswaA And this is what I have in my old files
in re Läutewerk:
"These were also used at crossings and at stations. There was a whole code of rings:
The following text was compiled by Georg Federn, some years ago in response to a plea for information on
worldrailfans.org:"A long time, until 1935, the first signal in the signal rule book was a chime signal: 'Train runs in direction from A to B - (Abmeldesignal) - Once five chimes.’
Even if the stations had a Morse apparatus since 1855 to signal each other, there were MANY railway attendants in their small houses between the stations and they had no Morse apparatus to listen (and they did not know how to Morse as well).
So the railways started in 1871 to equip them with those Läutewerken/Läutebuden. By 1886 all lines where equipped with them. Parallel the telegraphs were dismantled.
So these signalling apparati were used to signal those railway attendants of workings on their line:
Signal 1:
Train runs in direction from A to B (e.g. Munich, km 0,0 to somewhere)
- Once five chimes
Signal 2:
Train runs in direction from B to A (e.g. from somewhere to Munich)
- Twice five chimes
A table for the direction A to B for every line existed in the signal rule book, e.g. simplified one can say: It was away from Munich.
Signal 3:
The line will not be used until the next scheduled train
- Three times five chimes
Mostly used at night when there was no traffic for a longer time.
This could also be used to cancel an already signaled train.
Signal 4:
Something exceptional has to be expected
- Six times five chimes
Every train has to be stopped and the chief of train has to be informed. He has to decide, if the train stays stopped or otherwise he was only allowed to drive very slowly and watchful.
Between the two or more groups of five chimes there were a pause of 5-10 seconds.
Those Läutewerke could stand at railway attendant houses, railway crossings, block stations, at the posts of switch/point attendants, signal towers, or even in the wilderness at a line to inform railways workers.
At a turn-off/junction where two or more lines split, there could stand two or more Läutewerke at the same point.
Therefore there exists apart the normal double chime bell also single or triple chime bells.
The "Läutewerke" were still used until around 1960 as THE signal to inform the posts.
By the way, the originals could be heard up to 200 metres away.”
Hope this helps
