Templot Club Archive 2007-2020                             

topic: 1231Chair type & spacing on interlaced timbers
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posted: 5 Sep 2010 23:51

from:

Paul Hamilton
 
 

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Now that the common crossing is ready to install I am requesting some guidance with respect to the type and distribution of chairs on my interlaced laser cut sleepers.

I am using the C&L four bolt chairs and note that there may be less need for special chairs on interlaced timbers as the vee rails can be supported by chairs that are staggered or alternate so as to not get in the way of any adjacent chairs.

Can anyone shed some light on what chairs to use as the C&L and P4 track company instructions only appear valid for regular turnouts, not interlaced.

posted: 12 Sep 2010 23:45

from:

Paul Hamilton
 
 

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Given the overwhelming response I gather that I may need to add a photograph of what I am talking about to make it clearer! Will do this evening. One clarification is that no templates exist for interlaced timbers so I have no reference for chair type and positioning.

posted: 13 Sep 2010 01:07

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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Hi Paul,

Which prototype are you modelling?

There is a detailed drawing of a NER sleepered (interlaced) crossing, including chairing, in the NER 1912 Permanent Way Standards book. Reprint available from NERA:

 http://www.staff.ncl.ac.uk/m.h.ellison/nera/saleslst.htm

(Scroll down to "Diagram Books")

Unfortunately my scanner is out of use at present, but someone else may be able to scan it for you.

regards,

Martin.

posted: 13 Sep 2010 01:33

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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Paul Hamilton wrote:
One clarification is that no templates exist for interlaced timbers so I have no reference for chair type and positioning.
Hi Paul,

Well there are these templates and download link:

 message 1779

If the screenshot doesn't appear, it is because of problems today on the templot.com server, sorry about that.

See the rest of that topic for further details.

regards,

Martin.



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