Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Apr 16, 2007 21:58:36 GMT
All your pix are very nice, Geoff.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Apr 28, 2007 20:39:23 GMT
BUMP.
A thread in u.t.l. has the following info to offer:
In reference to the large Easter shutdown, this was posted:
Can any of our resident LU staff expand on this info?
|
|
Tom
Administrator
Signalfel?
Posts: 4,198 
|
Post by Tom on Apr 28, 2007 20:50:56 GMT
Well, I know who the poster on u.t.l was...
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Apr 28, 2007 21:53:56 GMT
So, another moveable angle/switch diamond bites the dust?
|
|
Tom
Administrator
Signalfel?
Posts: 4,198
|
Post by Tom on Apr 28, 2007 23:58:55 GMT
'Fraid so.
|
|
DWS
every second count's
Posts: 2,487
|
Post by DWS on Apr 29, 2007 8:20:31 GMT
Well, I know who the poster on u.t.l was... What is u.t.l ? |
|
Tom
Administrator
Signalfel?
Posts: 4,198
|
Post by Tom on Apr 29, 2007 9:56:53 GMT
uk.transport.london - a usenet group.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Apr 30, 2007 15:16:56 GMT
there are plans to extend the met along the old british rail line which still has information
and station signs from the toothpaste era one still even has a number to call for information
about services on the branch!
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 2, 2007 4:16:14 GMT
I don't think that the North Curve is going. It is a very useful part of the Railway. The South Junction is being moved further south (I guess to enable higher speeds over the pointwork). By all accounts that isnt the case, as the crossovers are different! |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 2, 2007 11:01:27 GMT
Do any of our resident signal ops have access to the diagrams? I'm having a lot of trouble visualizing what the final layout would be.
*cue Harsig with his PDFs*
|
|
|
|
Post by c5 on May 2, 2007 15:29:28 GMT
Are you talking about the possesion plan or the new/alteration junction diagram
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 2, 2007 17:08:51 GMT
Are you talking about the possesion plan or the new/alteration junction diagram I'm talking about the finished product - signals, points, the lot. Like I said earlier I haven't been up there lately so I haven't had a chance to actually see what's been happening. |
|
DWS
every second count's
Posts: 2,487
|
Post by DWS on May 2, 2007 21:31:44 GMT
3 day shut down on the August Bank Hoilday weekend.
|
|
Tom
Administrator
Signalfel?
Posts: 4,198
|
Post by Tom on May 2, 2007 21:50:14 GMT
Are you talking about the possesion plan or the new/alteration junction diagram I'm talking about the finished product - signals, points, the lot. I have access to a copy (one of the design team for that job sits next to me), but it isn't something I would be posting on here, as it is very much a live document. |
|
Tom
Administrator
Signalfel?
Posts: 4,198
|
Post by Tom on May 2, 2007 21:52:02 GMT
I don't think that the North Curve is going. It is a very useful part of the Railway. The South Junction is being moved further south (I guess to enable higher speeds over the pointwork). By all accounts that isnt the case, as the crossovers are different! Well, that is the case. If not now, in a few years when our saviour the upgrade comes along. |
|
|
|
Post by mandgc on May 2, 2007 23:20:48 GMT
It seems that Moveable Angles have fallen out of favour since 1948 at Harrow South Junction and later with the four tracking at the North Junction. Then they seemed to be looking for anywhere to put them in !
The first on the Underground seem to have been at the double slips at Baker Street, Met, about 1924.
|
|
DWS
every second count's
Posts: 2,487
|
Post by DWS on May 3, 2007 14:10:45 GMT
Do any of our resident signal ops have access to the diagrams? I'm having a lot of trouble visualizing what the final layout would be. *cue Harsig with his PDFs* The south junction will look the same, all that is been changed is that points 53, 54, 56 & 57 will be moved nearer to Moor Park Station ( approximately 1200 meters north of Moor Park) The new Watford South Junction will not have Movable Angles on 54 points. |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 4, 2007 8:40:18 GMT
The first on the Underground seem to have been at the double slips at Baker Street, Met, about 1924. I think the switch diamond that was in the scissors crossover on the approach to Liverpool Street (Central Line) pre dated the one at Baker St? |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 4, 2007 19:08:12 GMT
The south junction will look the same, all that is been changed is that points 53, 54, 56 & 57 will be moved nearer to Moor Park Station ( approximately 1200 meters north of Moor Park) The new Watford South Junction will not have Movable Angles on 54 points. After this post I decided to have a walk around the area today, especially as the sun was out and not having anything better to do. A lot of work has been going on, but what I can't understand is why they have laid flat bottom rails on a mixture of both wooden and concrete sleepers. All the flat bottom I have seen elsewhere is laid on concrete only. Can anyone shed any light on this? Also new juice rails are the thinner alluminum style, is it cheaper or a better conductor? |
|
|
|
Post by stanmorek on May 4, 2007 19:28:52 GMT
Without seeing it there are a few reasons why timber sleepers may have been used. If there are catchpit covers for the six foot drain then timber sleepers are used around them as they can be cut to suit. Its also easier to fix signalling equipment onto timber. Sleepers under crossings are longer than standard and timber will weigh less than concrete. A crossing assembly will be lifted in as one piece during a possession. What material are the crossing sleepers?
I think the plan is that all conductor rails will be the new composite type eventually.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 4, 2007 19:36:55 GMT
That does indeed seem the case, as it all appears to be littering the 10 foot. Again, it was a mix of timber and concrete sleepers, IIRC mainly timber.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 4, 2007 21:11:35 GMT
Would I be right in saying that the replacement crossover where the moveable angles have been removed is at a larger angle than the old (unlike Brixton where the angle of the crossover was probably the same due to tunnel constraints)?
|
|
Tom
Administrator
Signalfel?
Posts: 4,198
|
Post by Tom on May 4, 2007 22:41:53 GMT
From the photos I've seen, yes.
|
|
|
|
Post by mandgc on May 5, 2007 9:03:05 GMT
Liverpool Street, CLR, Moveable Angles, Reply # 47.
Can you say roughly when the crossing was installed ? I did not think moveable crossings came into general use until the mid-thirties.
|
|
|
|
Post by tubeprune on May 5, 2007 16:33:32 GMT
Liverpool Street, CLR, Moveable Angles, Reply # 47. Can you say roughly when the crossing was installed ? I did not think moveable crossings came into general use until the mid-thirties. Moveable angles were installed in both scissors crossovers, one at each end of Liverpool Street station, opened 27th July 1912. Source - "The Tuppeny Tube" by MAC Horne. Mike probably got the info from the institute of Civil Engineers papers issued at the time. He is very hot on historical facts. |
|
|
|
Post by mandgc on May 6, 2007 0:36:54 GMT
Liverpool St.
Thanks, Stephenk. I see that they were not in place when the Central was extended to Stratford.
|
|
|
|
Post by abe on May 6, 2007 7:28:35 GMT
The Railway Gazette issue of 12 June 1914 has a very detailed article about the resignalling of the CLR, and includes a photograph of the movable angles at Liverpool Street. I can post a copy if people are interested - it's slightly blurred though.
|
|
Colin
Advisor
My preserved fire engine!
Posts: 11,348
|
Post by Colin on May 7, 2007 4:09:07 GMT
I'm sure we'll overlook the quality in view of the content - fire away matey  ........ |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 7, 2007 7:22:01 GMT
The Railway Gazette issue of 12 June 1914 has a very detailed article about the resignalling of the CLR, and includes a photograph of the movable angles at Liverpool Street. I can post a copy if people are interested - it's slightly blurred though. Yep, we're interested! (Maybe in a new thread in the Central Line section, as this one is heading off topic.) |
|
........
