manna Posted September 6, 2014 Share Posted September 6, 2014 G'Day Gents I'm building a model of Edgware station (GN) in the 1930's, in the 20's the Northern Line was extended to Edgware, it passed under the (then) LNER branch to Edgware, which is also part of the model, and I have to include the cabling along side the tracks, would anyone know the distance between the uprights, I've judged them to be app 5' Thank you. manna Link to post Share on other sites More sharing options...
Engineer_London Posted September 7, 2014 Share Posted September 7, 2014 Must admit I'm not an expert in this field and defer to others on RMWeb who are - however I'll always learn from these sorts of enquiries. I guess you've taken a look at the LT Museum's online photograph collection already, and I can see in there a number of pictures of the Edgware extension including an excellent couple of views of cable-laying in the 1920s. This tells me that the cable runs on this section probably included not only signal cables but also the larger 'high tension' [power or HT] cables. The furthest back I can get in archive drawings, so far, is a 1936 proposal for a design standard which gives 8-foot centres for signalling cable suports, and 4-foot centres when supporting HT cable. So, my suggestion is to try supports at 4-foot intervals, and check for appearance with contemporary photographs. 5' might be wise if the closer spacing seems overpowering. Checking a much more modern standard for the railway, separation of HT cable supports is given as 1200mm... Link to post Share on other sites More sharing options...
RMweb Gold Metr0Land Posted September 7, 2014 RMweb Gold Share Posted September 7, 2014 Checking a much more modern standard for the railway, separation of HT cable supports is given as 1200mm... Hope I'm not teaching people to suck eggs but 1200mm is near enough 4' in real money (or 47.2") Link to post Share on other sites More sharing options...
Judge Dread Posted September 7, 2014 Share Posted September 7, 2014 I will throw into this question, I agree with the 4 ft dimension but I was stumped to find a "cable" that would not recoil itself. I finally hit on using resin- cored solder. A couple of lengths of double sided tape on a piece of scrap plywood first. The roll out your 1.25mm solder and straighten it. Then lightly stick down to the tape and paint black with acrylic paint. When dry, roll each strip 90 degrees and paint the side you missed. Thread into place on your supports and super glue (you cannot solder solder!) Touch up scratches and glue on rectangular pieces of 5mm x 3mm card onto every other span. If you can, print on each of them, "DO NOT LEAN TOOLS AGAINST THESE CABLES." Yes I do jest here. You may find the Britainfromabove site useful. You will have to log in to be able to magnify photos. Here's a start for you, http://www.britainfromabove.org.uk/image/epw031554?search=Edgware&ref=43 I feel I must also explain why the cables are on the opposite site to the track. Well on Tappa's brilliant layout "Margary Street, which is based on the Widened lines, He has modelled the "Overground" portion and the "Underground" is outboard to the left in what you see in my photo. The latter is not modelled at the moment but.......... Now if you want cable bridges..................See one Mally Baker but don't hold your breath, at-least until he has finished his bathroom conversion! Link to post Share on other sites More sharing options...
manna Posted September 8, 2014 Author Share Posted September 8, 2014 G'Day Gents Thank you for your replies, I have looked at some LT museum pictures. Thank you for the idea of using solder for the cable runs, I to, was wondering what to use, I did think of heavy fishing line, but I don't think it would 'sag' between uprights, I'll try both 20mm and 16mm gaps to see how it looks. I'll post a pic or three, shortly. manna G'Day Gents Thank you for your replies, I have looked at some LT museum pictures. Thank you for the idea of using solder for the cable runs, I to, was wondering what to use, I did think of heavy fishing line, but I don't think it would 'sag' between uprights, I'll try both 20mm and 16mm gaps to see how it looks. I'll post a pic or three, shortly. manna Link to post Share on other sites More sharing options...
manna Posted September 8, 2014 Author Share Posted September 8, 2014 G'Day Gents Thank you for your replies, I have looked at some LT museum pictures. Thank you for the idea of using solder for the cable runs, I to, was wondering what to use, I did think of heavy fishing line, but I don't think it would 'sag' between uprights, I'll try both 20mm and 16mm gaps to see how it looks. I'll post a pic or three, shortly. manna Link to post Share on other sites More sharing options...
RMweb Gold Metr0Land Posted September 8, 2014 RMweb Gold Share Posted September 8, 2014 Don't forget that in the original style of cabling* the top cable wasn't exactly a cable but a compressed air line. I used small diameter rod for this sprayed with grey primer. Sorry but the layout was ripped up for a house move so can't measure the distance between uprights or find a packet with the rodding to get its size. *I've noticed that recently cable runs seem to have gone mad so the original cabling is often 'in there somewhere' amongst a lot of more recent stuff Edit: Not sure if you've seen my Ayelsbury Junction thread which has been defunct for some while but some more pics on there: http://www.rmweb.co.uk/community/index.php?/topic/50822-aylesbury-junction/ Link to post Share on other sites More sharing options...
SRman Posted September 8, 2014 Share Posted September 8, 2014 I have been pondering what to use for when I get around to doing my underground cable runs. The solder is a brilliant idea. Link to post Share on other sites More sharing options...
Lord of Narnia Posted September 8, 2014 Share Posted September 8, 2014 Have you seen the cable runs from Radley models? They appear to have the dimensions correct. Link to post Share on other sites More sharing options...
manna Posted September 10, 2014 Author Share Posted September 10, 2014 G'Day Gents Thanks for the replies, most helpful, I have now painted 50 cable holder and 'planted' some loosely in holes 15mm apart, which seems about right, see what you think. manna Link to post Share on other sites More sharing options...
bécasse Posted September 10, 2014 Share Posted September 10, 2014 Thomas's Handling London's Underground Traffic (1928) contains a photo of a Fog Repeater signal which is almost certainly situated somewhere along the District Railway in West London. The cables are mounted on clips fixed to a low brick retaining wall (as opposed to being mounted on the more usual concrete posts), and it is possible to use a brick count to determine the horizontal clip spacing which is 3ft-6in centreline-centreline. It is very unlikely that this spacing would be any different where posts were used. Photos in the same book of the above ground section of the Morden-Edgware line confirm that the standard cable support posts were already in use and are certainly not incompatible with a 3ft-6in post spacing, certainly the posts seem closer together than they are tall. Link to post Share on other sites More sharing options...
Horsetan Posted September 15, 2014 Share Posted September 15, 2014 Some of the concrete cable posts are still in place between Sanders Lane (after Mill Hill East) and Copthall. Could be worth having a look for anyone living nearby, sort of.... Link to post Share on other sites More sharing options...
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