Deleted
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Post by Deleted on Dec 6, 2007 13:05:32 GMT
I noticed the wall-mounted signal, presumably a repeater of J10, on platform 7, and two single-light boxes.
I recognised one as being for the tripcock tester. Is the other a repeater of the route indication at J10? (trains can run into platform 6 at Euston to then go south)
Or is it for something else?
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Post by railtechnician on Dec 6, 2007 15:59:04 GMT
I noticed the wall-mounted signal, presumably a repeater of J10, on platform 7, and two single-light boxes. I recognised one as being for the tripcock tester. Is the other a repeater of the route indication at J10? (trains can run into platform 6 at Euston to then go south) Or is it for something else? Do you have a picture or a URL for one? |
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Post by c5 on Dec 6, 2007 16:52:39 GMT
Without seeing what you are asking about! Is it like a normal signal head? Could it be an old starter signal that has been moved???
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Post by railtechnician on Dec 6, 2007 19:06:50 GMT
Without seeing what you are asking about! Is it like a normal signal head? Could it be an old starter signal that has been moved??? I think he means two square boxes, one having the 'blue' glass to give the lunar white tripcock tester light and the other is the one he is asking about. It could be a route indicator box like those fitted at tunnel sticks with three small bulbs. |
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Post by Deleted on Dec 7, 2007 13:47:43 GMT
I noticed the wall-mounted signal, presumably a repeater of J10, on platform 7, and two single-light boxes. I recognised one as being for the tripcock tester. Is the other a repeater of the route indication at J10? (trains can run into platform 6 at Euston to then go south) Or is it for something else? Do you have a picture or a URL for one? I shall take a picture on the next occasion I am standing there unless someone else beats me to it. |
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Post by Deleted on Jan 9, 2008 15:20:59 GMT
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metman
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Post by metman on Jan 9, 2008 18:58:08 GMT
It looks like one of those 'S' lights that used to light up when the guard gave the starting signal. This was usually found on the sub-surface lines though. It also looks like the bulbs used where an interchange is (eg Finchley Road, Mile End). It could also be an old tipcock tester or a FRL?
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Post by happybunny on Jan 9, 2008 20:51:52 GMT
It looks like lights I used to see on the Jubilee at Wembley NB and Finchley Rd SB it just used to light up with an illuminated M.. meaning the Met line was approaching
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Tom
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Post by Tom on Jan 9, 2008 23:12:56 GMT
The type of signal head could be used for any number of things (including A, J, M or S signs), but I suspect it repeats either a route indicator or shunt signal.
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metman
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Post by metman on Jan 10, 2008 1:05:22 GMT
Calling on Northern Line T/ops......
I don't think it is a route indicator because it is above/near a platform repeater and they don't always show 'separate' R/I. Is it actually still in use one wonders?
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mrfs42
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Post by mrfs42 on Jan 10, 2008 1:17:10 GMT
I'm gonna stick my neck out and suggest that it is a slave 'A' light tied in with the platform repeater that dates from the days that J10 was L16. L16 had an 'A' light in '56 but not after the diversion of the NB at Euston (plus the intervention of Cobourg St. rendering 'A' lights redundant). Why have an 'A' light repeated? Well, I'm sure it goes back to the convergence of the Picc. and the control of the two lines from both a signalbox (Northern) and an IMR (Picc.) I'm thinking of the days when J12/J120 were L19/L190. I'm probably barking up the wrong tree altogether - it is probably worth looking closely at the light in question and attempting to decipher what stencil it is meant to shew. ;D <off to find more beverages.......  > |
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metman
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Post by metman on Jan 10, 2008 1:37:18 GMT
Good man!! What is an A light?
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mrfs42
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Post by mrfs42 on Jan 10, 2008 1:50:25 GMT
Back in black-and-white days when there were signalboxes on LT, if a 'box could close without affecting traffic [1] then all points would be set for the through route, all appropriate sticks would be pulled off and then the king lever or kings would be pulled. All points would be locked, all controlled signals would then function Automatically and the 'box would be unstaffed. Normally controlled signals would then shew an 'A' light. Rule 35 of the 1933 rule book: On London Transport Railway automatic stop signals are distinguished by the letter 'A' or 'S' being prefixed to the number at the signal. Semi-automatic stop signals are distinguished by the identification letters of the signal box prefixed to the number of the signal; when however, semi-automatic signals are working automatically and are to be regarded as automatic signals they are distinguished by a sign illuminated to show the letter 'A'. <finished angelislington's brandy  > EDIT: I've forgotten what I was going to put in the footnote, something along the lines of only open in peak hours, quick turnbacks that sorta malarkey. |
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Post by Deleted on Jan 10, 2008 9:59:46 GMT
I thought it might be an A light actually, but wasn't sure. I'll see what I can find out when I'm back at work (or maybe I'll even get off and have a look at it).
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Post by Deleted on Jan 14, 2008 8:51:22 GMT
I went to Kings X yesterday and I went and had a look at it.....and I still can't figure out what it is  |
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Post by railtechnician on Jan 15, 2008 2:31:12 GMT
I thought it might be an A light actually, but wasn't sure. I'll see what I can find out when I'm back at work (or maybe I'll even get off and have a look at it). I don't think it would be an 'A' light because the 'A' should be mounted adjacent to the signal to which it refers. |
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Post by Deleted on Jan 15, 2008 2:53:16 GMT
Spent a bit of time on the intranet and there is no illuminated A on J10.
Therefore I plump for the original - a repeater for the route indicator.
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Post by railtechnician on Jan 15, 2008 12:58:55 GMT
Spent a bit of time on the intranet and there is no illuminated A on J10. Therefore I plump for the original - a repeater for the route indicator. Yep that makes most sense considering the site and the apparent age of that lamp from the photo. It seems to have been there a long time. |
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mrfs42
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Post by mrfs42 on Jan 15, 2008 17:52:52 GMT
Having spent the latter part of the day going through most of my notes relating to Euston area et al I think I've got the answer.
It is an 'A' light housing; but just has the '/' bar as a repeater for J10.
It was installed leading upto 15/10/67 and commissioned sometime afterwards when the former trailing crossover and siding point levers at Euston were converted into the Euston Loop points and Kings Cross Loop points respectively.
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