Templot Club Archive 2007-2020
|
|||
| author | remove search highlighting | ||
|---|---|---|---|
|
posted: 21 Jul 2013 19:46 from: LSWRArt
click the date to link to this post click member name to view archived images |
I am currently trying to build a crossing with a straight line crossing a curve. At one end, the common crossing has an angle of 1:2.14. The other end is nearer 1:3. I found that 12" sleepers would not work for the 1:2 end and I have had to replace them with 14" wide sleepers, so that the chairs would hang off the edge of the sleeper. So I wondered how the real railways sleepered crossings at even greater angles? I am interested if anyone has any photos as it does not seem very obvious how to do it. N.B. This is not for a project - just for interest. Regards, Arthur |
||
|
posted: 21 Jul 2013 20:07 from: Paul Boyd
click the date to link to this post click member name to view archived images |
Hi Arthur Have a look at the picture below of a short angle diamond for my in-progress layout. It was based on the crossing at Highbridge where the S&D crossed the GWR main line. This is an irregular diamond of around 1 in 1.9 105_211505_400000000.jpg  More pictures here.Cheers |
||
|
posted: 21 Jul 2013 20:29 from: Martin Wynne
click the date to link to this post click member name to view archived images |
That's excellent Paul.  Arthur, diamond-crossings shorter than about 1:4 are usually built on waybeams (longitudinal timbers) as in Paul's example. Designs varied between companies and each one was normally created as a special. For details of a GWR 1:1 diamond-crossing, see: message 812 The timbering algorithm in Templot falls over below about 1:4, so you need to shove the timbers to match the drawing by widening them, twisting them round and crabbing them to lie under the rails as waybeams. regards, Martin. |
||
|
posted: 22 Jul 2013 13:49 from: Brian Nicholls
click the date to link to this post click member name to view archived images |
Hi All, Does anyone have prototype photographs of such an obtuse crossing, showing the actual waybeams ? If so please post here. All the best. Brian Nicholls. |
||
|
posted: 22 Jul 2013 19:01 from: LSWRArt
click the date to link to this post click member name to view archived images |
Thanks Paul and Martin Interesting to see how it worked on the real railway and Paul's track looks really good. I struggle to produce much simpler trackwork. All the best, Arthur |
||
|
posted: 25 Jul 2013 17:15 from: Phil O
click the date to link to this post click member name to view archived images |
Hi Brian There are shed loads of photo's about showing Newcastle S & C where most of the station throat is on way beams. Cheers Phil |
||
|
posted: 25 Jul 2013 17:55 from: Brian Nicholls
click the date to link to this post click member name to view archived images |
Hi Phil, Many thanks for the pointer, will investigate the Newcastle station prototype.  All the best. Brian Nicholls. |
||
| Please read this important note about copyright: Unless stated otherwise, all the files submitted to this web site are copyright and the property of the respective contributor. You are welcome to use them for your own personal non-commercial purposes, and in your messages on this web site. If you want to publish any of this material elsewhere or use it commercially, you must first obtain the owner's permission to do so. |