mrfs42
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Post by mrfs42 on Jan 20, 2013 19:39:48 GMT
Really, really good day. Lost count of how many times we went through East Croydon, but it must have been at least 5. I'll dig out the WTT we were given and edit the post later, but we did every branch and a depot tour too - looking at the Control Centre and the bogie store. Three pictures from the day - there were lots, but AI's sorting them out. Special Tram at New Addington - this was the afternoon Bombardier tram Note the destination AI sat in the back cab of the Stadler, leaving Wimbledon (after the nice Motorman said that she could sit there for a bit).
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mrfs42
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Post by mrfs42 on Jan 20, 2013 12:11:50 GMT
Currently on a Stadler leaving Wimbledon, AI's sat in the driving seat. She's bounced up and down in the seat several times in excitement (back cab). Off to the depot for a tour next.
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mrfs42
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Post by mrfs42 on Jan 19, 2013 19:43:41 GMT
this is know to me can you enlighten us more please Friends of the LTM organised event.
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mrfs42
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Post by mrfs42 on Jan 19, 2013 19:32:41 GMT
Anyone else on this tomorrow? Me and AI will be trundling along.
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mrfs42
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Post by mrfs42 on Jan 18, 2013 13:15:37 GMT
When MRFS does his Surrey Docks plan perhaps more will come from that. I'm working on it! Have been a bit busy on the old bellringing front as well as working on signalling diagrams for places as diverse as Edgware, Aberystwyth and Tanybwlch. In fact, I'm just about to start on some Edgware extracts.
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mrfs42
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Post by mrfs42 on Jan 17, 2013 23:49:18 GMT
Why would you want to; just out of interest?
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mrfs42
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Post by mrfs42 on Jan 17, 2013 9:26:50 GMT
Commissioned a century ago - link
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mrfs42
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Post by mrfs42 on Jan 16, 2013 2:27:27 GMT
To try and avoid the need for this was one of the reasons we set up the tubequiz@gmx.com email address that we can all read. Though some of us are quite bad at checking the e-mail ;D , so please post in the thread if you have sent an e-mail! Interesting timestamp....
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Post by mrfs42 on Jan 15, 2013 11:13:41 GMT
Perhaps the fact it doesn't physically connect nor was it ever LPTB owned/ running powers has some explanation for the separate entity. On the contrary, the section of Thameslink between Kings Cross and Farringdon (and on to Moorgate) was built by the Metropolitan and operated by it and the LPTB until the Bedpan elkectrification project started in the late '70s Indeed a recent thread suggests that TfL still owns it, NR simply leasing it from them Yes; you're right, I was thinking it was all LCDR built (well the north-south bit). Naturally, the Moorgate branch of the CWL was Met.
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Post by mrfs42 on Jan 15, 2013 9:59:02 GMT
The London rail network is rather fragmented, isn't it? Does a visitor really need to know who operates the individual groups of lines? I'm not really sure why Thameslink isn't part of the Underground anyway. Perhaps someone more closely involved could clarify? Perhaps the fact it doesn't physically connect nor was it ever LPTB owned/ running powers has some explanation for the separate entity.
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Post by mrfs42 on Jan 14, 2013 14:54:01 GMT
De-icing is authorised when the ambient rail temperature, sensor at Amersham i believe, falls low. Is that still commissioned? I was under the impression that it had been taken out of service and there was now some form of co-operation with the Met Office. Mind, this comes from a hazy memory of a thread some years back on the forum and my memory may be at fault.
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Post by mrfs42 on Jan 14, 2013 0:01:28 GMT
Working Timetables. Do you read the rest of the Forum? I only say that, because they're mentioned and explained several times, but I suspect the ProBoards search would spit it out as a search term.
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Post by mrfs42 on Jan 13, 2013 14:28:17 GMT
Red is also a bad colour to maintain as it fades in sunlight. Nowhere near as bad as blue.
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Post by mrfs42 on Jan 12, 2013 1:08:29 GMT
V= trainstop and also (trainstop)Valve Y-e-e-e-s. I think the first trainstops were all electric and ISTR that the V was in use in the States with their all electric interlocking, as the alphabet came from the US. Yes - the V was the valve in the table interlockers, with the M as the motor of the trainstop, so it became V with external air or hydraulic drive.
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Post by mrfs42 on Jan 12, 2013 0:53:17 GMT
AFAIAA, tickets to 1072 (if anyone else remembers the number, from my days as an agency booking clerk) were not valid to Bank and required a + endorsement.
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Post by mrfs42 on Jan 11, 2013 13:55:05 GMT
Forgive an idiot question; what do GR and V stand for in this context? si Gnal, Relay and trainstop - no, I don't know either.
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Post by mrfs42 on Jan 11, 2013 11:57:02 GMT
Automatic train operation was interesting. Between Northfields and Acton Town??? Yes. It was the proving ground for the Victoria Line. Dell had ATO in his sights for a very long time. Only one unit, mind. I've the signalling notice somewhere - unusually printed on white paper.
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Post by mrfs42 on Jan 10, 2013 19:24:37 GMT
I was told that a GMR was much the same as a GVCR but I don't know it for fact and of course that signalling was all replaced in the stage 2 resignalling in the early 1980s. I'd love to see the bookwirings for the original signalling. I have wondered if Cockfosters to Finsbury Park originally had electric trainstops and if that was the reason for GMRs but I don't know. Somewhere I have the details for two types of electric trainstop once used on the Underground but I have no idea how widely they were used. AFAIK they were all removed in the 1950s. ISTR that the electric trainstops were used north of Queens Park and with the opening to Edgware in the 20s - there were some all-electric installations (Hendon, Brent spring to mind, but I'd need to check a bit further). Looking at District Railway and Piccadilly Line Supplement to Traffic Notice 36/32 which covers the extension to Arnos Grove and bits and bobs west of Earls Court, paragraph 4 reads: Unfortunately the penultimate sentence gives EP trainstops
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Post by mrfs42 on Jan 10, 2013 15:55:10 GMT
Would I be right in thinking that JNBX is used there because there is a time delay on releasing the BX side of the circuitry? I ought to know for sure, but I'm doubting what I understand JN to mean in this circumstance. The JNBX100 was the feed disconnected when the signalman had to manually take a release by winding in and back out the release screw in the cabin. Your understanding is correct, Timed Hand Release BX100. I recall the old Wood Green Picc signal cabin had multiple release relays which were JNNRs, Timed Hand Release Normal Relays (controlled by the screw or remotely from Arnos Grove cabin when 'G' was in king lever) which seemed to differ from what was taught for that standard of signalling, simply JNRs. I've seen many references to Wood Green over the years, including the opening Yellow Peril and it's re-issue in 1969 (or thereabouts) with a bit more information. Lest it be forgotten that Wood Green was the first ever (I'll probably get this wrong in the exact terminology) TD-based automatic reversing siding in the world; so I suspect that terminology dates from when Wood Green opened. There is a slim possibility that the original TD linens still exist somewhere, and I suspect that the JNNR terminology dates from then. I know that you didn't get such exotic things in RSTD installations. Of course the east end of the Picc was electrically fed by the North Met Electricity company originally (offices still visible in Station Road Wood Green but changed use long ago), the only area where I ever saw blue frame 50v DEV, SEV etc relays and where there were GMRs instead of GVCRs. I presume that standard was the same on the whole extension north of Finsbury Park but at that time (1978/9) I only worked on the section from Wood Green to Cockfosters and in cabins 'G', 'K' and 'M'. Presumably because the GMRs drove the trainstops down? I know the purpose of a GVCR, and wonder if in earlier installations the 'C' part of things was achieved by the 'M' part of the GMR?
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Post by mrfs42 on Jan 9, 2013 18:49:03 GMT
Would I be right in thinking that JNBX is used there because there is a time delay on releasing the BX side of the circuitry?
I ought to know for sure, but I'm doubting what I understand JN to mean in this circumstance.
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Post by mrfs42 on Jan 7, 2013 17:29:46 GMT
I wonder if the only sure-fire way to answer this question would be to look at the bookwiring?
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Post by mrfs42 on Jan 6, 2013 21:35:54 GMT
Thank-you very much gentlemen. As we live above Harbledown Junction (as was) the open train times site will be quite useful. Isn't that near Thanington Without? I love unusual place names Yes - because it is without the city walls of Canterbury.
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Post by mrfs42 on Jan 6, 2013 20:43:14 GMT
Thank-you very much gentlemen. As we live above Harbledown Junction (as was) the open train times site will be quite useful.
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Post by mrfs42 on Jan 6, 2013 18:10:08 GMT
EDIT: I've had a look at the actual Working Timetable Have you got a for that, please?
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Post by mrfs42 on Jan 6, 2013 2:05:19 GMT
Righty ho, it's single-part Sunday Edgware (AE) looking from the New Works platform? It certainly feels top end Northern..
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Post by mrfs42 on Jan 5, 2013 19:12:25 GMT
Looking forward to it. Just out of interest, is there enough, then, to make a complete track/signalling diagram of Charing Cross - Lewisham? I have a track diagram, and small hints to the signalling, but no real detail on the signals. Was any time spent on Phase 4 to Hayes/Addiscombe/Beckenham Junction atall? Not necessarily drawings but text or spreadsheets? Never found anything beyond Lewisham, I know Mackenzie is doing a lot of research on the Fleet and its developments. Is this kind of stuff available in the Museum archives? Well, not really is probably the best way of putting it - I found these when sorting through many thousand drawings for the Northern Heights signalling diagrams, but they are uncatalogued AFAIK and not easy to find even if you know where to look for them.
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Post by mrfs42 on Jan 4, 2013 15:21:41 GMT
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Post by mrfs42 on Jan 4, 2013 14:42:04 GMT
Yes - but the original link was to a thumper in NSE livery next to an A stock at Watford.
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Post by mrfs42 on Jan 4, 2013 14:10:37 GMT
Having edited the post, and things not gone as they were, I've cut and pasted the link and it now seems to work! Computers, heh! Link
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mrfs42
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Post by mrfs42 on Jan 4, 2013 3:10:46 GMT
MRFS: In Illustrator, on the file menu, look for 'Save for Web & Devices...', and/or 'Save for Microsoft Office'. The latter does .png, the former .jpeg and other formats. Yes - thanks, Ben. I use the .pdf through habit, as it's easier to send a .pdf for review than a .ai file; and I'm so used to lovely crisp lines at $mega%ge that I get irkedby little bits of fuzziness. Anyway, back on subjectish - I'm drawing out the layout for Surrey Docks, which some should find interesting.
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