mrfs42
71E25683904T 172E6538094T
Big Hair Day
Posts: 5,922
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Post by mrfs42 on Dec 1, 2008 2:08:59 GMT
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neilw
now that's what I call a garden railway
Posts: 284
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Post by neilw on Dec 1, 2008 17:27:52 GMT
very interesting. Could someone enlighten me as to what substation feeder panels and posts look like, and where exactly they are located? In another thread I also saw mention of "disconnection panel", presumably something very similar?
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neilw
now that's what I call a garden railway
Posts: 284
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Post by neilw on Dec 3, 2008 16:35:09 GMT
other questions after closer examination..
Is there a system for numbering section switches the same way there is for signals, etc?
Does anyone have a picture or know of an existing location of a traction switch-house (for modelling purposes)
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mrfs42
71E25683904T 172E6538094T
Big Hair Day
Posts: 5,922
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Post by mrfs42 on Dec 4, 2008 0:15:57 GMT
other questions after closer examination.. Is there a system for numbering section switches the same way there is for signals, etc? There must have been a block of numbers issued to each line; however, this merits further research. I don't know where or when the numbering started, but if you look at Part of 1924 peril you can see that there was a series beginning at '1' at Camden Town. I wouldn't like to state that this was the definitive start of cumulative section switch numbering, without doing much more digging. In the scans I'm fairly sure that the numbers are in a contiguous series from Liverpool Street eastwards. Unfortunately the paper copies of what might give me the information for the rest of the network is currently securely packed away; however, I might have some arbitrary notes left in the filing cabinet in Wales or on my computer (which is also over the border); I can remember looking at it some while ago and seeing that there were 'blocks' of numbers allocated to each line - but nothing more than that. These days the suffix ' A' has the same meaning, that of the negative; motorised section switches have a four figure [1] number with the prefix 'M' - eg. M1001 with no ' A', because for practical purposes they are single-acting, rather than a switch for each polarity. [1] are there any 3-figure motorised switches anywhere? |
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Post by programmes1 on Dec 4, 2008 10:33:41 GMT
other questions after closer examination.. Is there a system for numbering section switches the same way there is for signals, etc? There must have been a block of numbers issued to each line; however, this merits further research. I don't know where or when the numbering started, but if you look at Part of 1924 peril you can see that there was a series beginning at '1' at Camden Town. I wouldn't like to state that this was the definitive start of cumulative section switch numbering, without doing much more digging. In the scans I'm fairly sure that the numbers are in a contiguous series from Liverpool Street eastwards. Unfortunately the paper copies of what might give me the information for the rest of the network is currently securely packed away; however, I might have some arbitrary notes left in the filing cabinet in Wales or on my computer (which is also over the border); I can remember looking at it some while ago and seeing that there were 'blocks' of numbers allocated to each line - but nothing more than that. These days the suffix ' A' has the same meaning, that of the negative; motorised section switches have a four figure [1] number with the prefix 'M' - eg. M1001 with no ' A', because for practical purposes they are single-acting, rather than a switch for each polarity. [1] are there any 3-figure motorised switches anywhere? The switches at Camden were renumbered a long time ago, into the LT system. As far as I know there are 3 figure Motorised switches Bethnal green being just one location. |
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Post by 21146 on Dec 4, 2008 10:48:25 GMT
There must have been a block of numbers issued to each line; however, this merits further research. I don't know where or when the numbering started, but if you look at Part of 1924 peril you can see that there was a series beginning at '1' at Camden Town. I wouldn't like to state that this was the definitive start of cumulative section switch numbering, without doing much more digging. In the scans I'm fairly sure that the numbers are in a contiguous series from Liverpool Street eastwards. Unfortunately the paper copies of what might give me the information for the rest of the network is currently securely packed away; however, I might have some arbitrary notes left in the filing cabinet in Wales or on my computer (which is also over the border); I can remember looking at it some while ago and seeing that there were 'blocks' of numbers allocated to each line - but nothing more than that. These days the suffix ' A' has the same meaning, that of the negative; motorised section switches have a four figure [1] number with the prefix 'M' - eg. M1001 with no ' A', because for practical purposes they are single-acting, rather than a switch for each polarity. [1] are there any 3-figure motorised switches anywhere? The switches at Camden were renumbered a long time ago, into the LT system. As far as I know there are 3 figure Motorised switches Bethnal green being just one location. In the 1970s the RTC taught that section switches always had 3-figure numbers but, in the 'real world'', I found there were/are 2-figure ones on the Met. |
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mrfs42
71E25683904T 172E6538094T
Big Hair Day
Posts: 5,922
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Post by mrfs42 on Dec 4, 2008 12:16:01 GMT
The plot thickens, reading the 1921 Metropolitan Appendix, the section switches seem to be numbered starting at 1 - Uxbridge - Harrow, then 72 at Wembley. 1 at Neasden and a lot higher. Hmm.
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Post by JR 15secs on Dec 4, 2008 12:29:17 GMT
The plot thickens, reading the 1921 Metropolitan Appendix, the section switches seem to be numbered starting at 1 - Uxbridge - Harrow, then 72 at Wembley. 1 at Neasden and a lot higher. Hmm. There is a No 10 at Harrow bit of a jump down as other switches are higher. |
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metman
Global Moderator
5056 05/12/1961-23/04/2012 RIP
Posts: 7,400
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Post by metman on Dec 7, 2008 11:00:07 GMT
When did North Acton gain an extra platform?
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Post by Harsig on Dec 7, 2008 12:43:19 GMT
When did North Acton gain an extra platform? From start of traffic Monday 22nd March 1993 |
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metman
Global Moderator
5056 05/12/1961-23/04/2012 RIP
Posts: 7,400
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Post by metman on Dec 7, 2008 12:51:09 GMT
Oh, that recently! It was added for the Central Line upgrade I imagine.
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