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                                       Crossover timbering
     
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1st message | this message only posted: 10 Mar 2018 13:09
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from:
DerekStuart
United Kingdom

 

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Afternoon all,
Much has been written across the internet about timbering crossovers, but I cannot find the answer to this. So apologies if I've missed it.

Is it ever permissible to shorten a timber outside the running rail? It can't even be one super-long timber as they don't line up anyway.

One person has suggested this is possible and that the two timbers that had been cut like this would be secured together in the same way as when making one long timber out of two smaller ones. But I am not 100% certain he's right.

Any info would be appreciated.
Thanks

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2nd message | this message only posted: 10 Mar 2018 13:45
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from:
Martin Wynne
West Of The Severn, United Kingdom



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Hi Derek,

Which rail? How close to the chair do you want to cut it?

If you mean cutting a timber very close to a chair, this would be frowned on in a running line rail. For a rail which is part of the crossover road, rather than the running line, it might be acceptable. If it is a slow speed area, such as a station throat or terminus it might be acceptable for any rail.

One might be acceptable, but several in a row not.

For goods-only lines the inspector might be less fussy.

For depots, yards and sidings anything goes which can be fixed with a big hammer.

A screenshot would help. :)

cheers,

Martin.

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3rd message | this message only posted: 10 Mar 2018 16:31
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from:
DerekStuart
United Kingdom

 

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Hello Martin

Thanks for the reply. Picture attached.

This is just supposed to be a small experiment for building rather than design, but I know I'd end up kicking myself if I don't do it right.

Many thanks.

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4th message | this message only posted: 10 Mar 2018 16:52
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from:
DerekStuart
United Kingdom

 

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Picture

NB, I accidentally started to upload a massive BMP file. I tried to stop it but it crashed the page. I hope I haven't done any harm to anything.

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Attachment: crossovertimbers.jpg (Downloaded 48 times)
 
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5th message | this message only posted: 10 Mar 2018 17:22
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from:
Martin Wynne
West Of The Severn, United Kingdom



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Please do not send requests for help direct to me via email or PM.

Post your questions on the forum where everyone can see them and add helpful replies.
Hi Derek,

No harm done. :)

p.s. Always use PNG format for screenshots. The file will be a lot smaller than JPG, and the image will be cleaner.

For your timbering, twist them a fraction into line:



You can always do that provided you are still picking up the positions within an inch or so for the special crossing chairs.

They are not too long to be single long timbers, but if your stingy railway company won't pay, I suggest making half-spliced and bolted joints as above, staggered well away from the chairs.

cheers,

Martin.

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6th message | this message only posted: 10 Mar 2018 17:46
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from:
DerekStuart
United Kingdom

 

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What a Gent.

Thanks Martin. I really should have realised that there was a little room to play with on those timbers.

I have my boards, they're varnished and ready to go... Finally.
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7th message | this message only posted: 11 Mar 2018 08:06
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from:
FraserSmith
Dundee, United Kingdom



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It would appear that the French have different ideas when it comes to interaction between timbers in crossings. I was searching for similar information to Derek and came across this example. It's worth opening this link to get the full size photo and clicking it to get it blown up them use the scroll bars to move around it. It's quite different I think than anything one could see this side of the channel.



I was searching for double track crossing timbering in Google and then in the images section but there are not very many pictures that are clear enough to see how the timbering is done. There are probably more pictures of people's models than there are of the real thing.

Fraser

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