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topic: 1544Trap points for sidings
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posted: 19 Jun 2011 16:37

from:

geoff
 
 

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Hi,

Can anyone please shed light on LNWR practice? My question concerns trap-points in sidings, definitely not running lines. My question arises from preparing my trackwork for Rhyl.

It seems that in some places the LNWR track lasted into the 60's. In the goods yard you can see LNWR 4-bolt pattern chairs and in one instance a wagon turntable lasted into the 1950's.

My guess is to use a 12foot straight ( loose-heel ) switch. Grateful for any expert knowledge.

Thanks,

Geoff


posted: 20 Jun 2011 15:38

from:

Brian Nicholls
 
Poole - United Kingdom

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geoff wrote:
Can anyone please shed light on LNWR practice? My question concerns trap-points in sidings, definitely not running lines. My question arises from preparing my trackwork for Rhyl.

It seems that in some places the LNWR track lasted into the 60's. In the goods yard you can see LNWR 4-bolt pattern chairs and in one instance a wagon turntable lasted into the 1950's.

My guess is to use a 12foot straight ( loose-heel ) switch. Grateful for any expert knowledge.

Hi Geoff,

First let me say, I don’t actually have any real LNWR data on trap points, however, I do have some LNWR drawings of some track-work, and have attached a drawing of the 12ft turnout with all fixings shown, which I hope will help.
To view full size of attached drawing look in the image gallery.

Regarding trap points, from my own observations, it would seem that generally, the point rails straddle about 6 or 7 timbers from point tip to the end of the rail, which as you say would make the actual switch a 12ft length version approx, since LNWR generally used 2ft 6ins at centres of timbers.
As stated, this is only a generalisation, as different sites dictated what length of trap needed to be used for the specific requirement.

Hope this helps.

All the best,

Brian Nicholls.


 

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posted: 20 Jun 2011 17:40

from:

geoff
 
 

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Hi Brian,

Very kind. Thank you.

Geoff



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