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Post by russe on Oct 23, 2005 16:34:52 GMT
Reference JN114's request a while back ( districtdave.proboards39.com/index.cgi?action=display&board=general&thread=1125868970&page=1), here is a drawing I did based on measurements taken yesterday on one the specimens at t'Museum:  I'm not happy with some details yet (the positions of the pigs ear blanking plates on the 'non-pigs' side, and the diameter of the main collar attaching to the post), so I might post an update after I compare it with some pics. Russ Edit: drawing updated 24 Oct 2005. |
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Deleted
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Post by Deleted on Oct 23, 2005 19:24:14 GMT
cheers Russ
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Post by Deleted on Oct 24, 2005 15:18:37 GMT
I'm not happy with some details yet (the positions of the pigs ear blanking plates on the 'non-pigs' side, and the diameter of the main collar attaching to the post), so I might post an update after I compare it with some pics. Looking good so far, let me know if you need any pictures matey |
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Post by russe on Oct 24, 2005 18:52:27 GMT
Thanks MA, I think I'm ok for that type of signal head for now, although I can't reconcile the position of the pigs ears and the blanking plates on the other side of the main body block, which I would assume must be in the same horizontal position.
But it got me wondering - do repeaters, particularly those mounted on the same post as a standard signal, normally have pigs ears?
Russ
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Post by q8 on Oct 24, 2005 19:01:19 GMT
Not a pigs ear as such Russ. But there is a small plain glass window colored the same as the aspect. (if it ain't been painted over that is)
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Post by russe on Oct 24, 2005 21:14:37 GMT
Not a pigs ear as such Russ. But there is a small plain glass window colored the same as the aspect. (if it ain't been painted over that is) Hmmm, I'd like to see some pics of those. Russ |
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Tom
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Signalfel?
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Post by Tom on Oct 25, 2005 13:08:28 GMT
Only on short range signals Q8. If the repeater is a long range one as per Russ' drawing then they would normally have pig's ears.
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Post by russe on Oct 25, 2005 13:36:35 GMT
"Short range", Tom? Is this referring to the length of hood, or am I on the wrong tack? Here's the plate of the specimen I was drawing. It is not a repeater, I think.  Russ (Roll on the next open day - I can see there are many more signalling mysteries to discover! But I'll need a ladder next time...) |
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Post by piccadillypilot on Oct 25, 2005 16:02:45 GMT
The range of the signal refers to the distance the light is projected. Long range on surface sections, short range in tunnels. IIRC fog repeaters are also short range signals. |
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Post by q8 on Oct 25, 2005 16:10:50 GMT
Yep that's what I though was meant by the question. FR's are short range and therefore have no pig's ears. Russ if you ever get near a tube line and see a fog repeater (generally painted silver) have a look at the side neares the track and you'll see the two little windows.
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Post by Deleted on Oct 25, 2005 16:19:41 GMT
fog repeaters are just short range signal heads with a enamel plate round it saying its a fog repeater they do have the little window
EC35 home signal into platform 4 is a short range signal but noticing last nite the green aspect side window has been blanked off god knows why
some of our long range signals especially ones been used as repeaters do not have the pigs ears installed
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Post by q8 on Oct 25, 2005 16:22:38 GMT
Ah! now you have the difference AET. A short range NORMAL repeater does NOT have the little side windows but an FR does.
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Post by Deleted on Oct 25, 2005 16:28:22 GMT
we do not have that many normal short ranges well the type you know, we have signal heads like the victoria line which do not have this feature anyways plus theres some older examples between west ken east junction and earls ct which also do not have this feature
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