lettering on dial of miniature staff instruments

[Junctionmad]

can anyone tell me what was the dial of the needle was labelled on the miniature staff instruments

 

 

thanks

 

 

Dave

[minister_for_hardship]

There wasn't any lettering, just a plain black background.

[Junctionmad]

There wasn't any lettering, just a plain black background.

 

So what did the needles point to

[Garfield]

So what did the needles point to

 

The needles indicate when there's a current being supplied to the instrument from the cabin at the far end of the corresponding section, allowing the signalman to remove the staff. When there's no current, the needles point 12-6, and when there is a current they move off-centre (1-7 or 11-5).

 

(And because they're powered by the same dynamo that powers the bell signal system, the needles twitch whenever the cabins are commmunicating)

 

Decent photo of the staff instruments in Claremorris cabin here: http://www.signalbox.org/overseas/ireland/claremorris-i.jpg

Edited November 7, 2015 by Garfield

[DiveController]

I have no idea what this discussion is about. Could someone explain if this concerns cab instruments or whatever? Apologies and thanks in advance!

[Garfield]

I have no idea what this discussion is about. Could someone explain if this concerns cab instruments or whatever? Apologies and thanks in advance!

 

It's about miniature staff instruments found in signal cabins (as in the photo link in my previous post).

 

https://en.wikipedia.org/wiki/Token_%28railway_signalling%29

[WRENNEIRE]

Quick pic of some

 

[DiveController]

Thanks, both!

(Sorry, Patrick, missed the photo on the mobile device)

[Junctionmad]

The needles indicate when there's a current being supplied to the instrument from the cabin at the far end of the corresponding section, allowing the signalman to remove the staff. When there's no current, the needles point 12-6, and when there is a current they move off-centre (1-7 or 11-5).

 

(And because they're powered by the same dynamo that powers the bell signal system, the needles twitch whenever the cabins are commmunicating)

 

Decent photo of the staff instruments in Claremorris cabin here: http://www.signalbox.org/overseas/ireland/claremorris-i.jpg

 

 

Thanks for that . I had seen some in the uk , that acted like but not the same as block instruments.

[jhb171achill]

Soon, it will be possible to see, measure and photograph all this stuff close up at Downpatrick, once the GNR Bundoran Junction cabin is fully up and running.

[Junctionmad]

Soon, it will be possible to see, measure and photograph all this stuff close up at Downpatrick, once the GNR Bundoran Junction cabin is fully up and running.

 

Get permission and visit Wellington bridge. It's a signal museum all present and frozen in time. Full signal cabin etc