Templot Club Archive 2007-2020                             

topic: 1295Mixed 7ft BG and standard gauge in P4
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posted: 26 Nov 2010 13:57

from:

PaulTownsend
 
 

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click member name to view archived imagesview images in gallery view images as slides 		I have been designing some mixed gauge pointwork and discarded all options as they are forced to include K crossings of angles around 1:10 ,where the gauge lines cross, because Martin's rules imply these cant be fixed Ks.

However having examined his example BG crossover I find he happily includes such fine fixed Ks. :?

Advice please!
posted: 26 Nov 2010 14:16

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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click member name to view archived imagesview images in gallery view images as slides 		PaulTownsend wrote:
I have been designing some mixed gauge pointwork and discarded all options as they are forced to include K crossings of angles around 1:10 ,where the gauge lines cross, because Martin's rules imply these can't be fixed Ks.

However having examined his example BG crossover I find he happily includes such fine fixed Ks. :?
Hi Paul,

The rules don't apply when the K-crossing is on one side only. The opposite rail is fully checked, and it is therefore impossible for a wheel-set to take the wrong path through the fixed K-crossing.

See the long check rails opposite the K-crossing: :)
 
gwr_mixed_print_a1.pnggwr_mixed_print_a1.png

regards,

Martin.
posted: 26 Nov 2010 14:47

from:

PaulTownsend
 
 

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click member name to view archived imagesview images in gallery view images as slides 		Excellent, Thanks for speedy answer :D

Now you have pointed out it is obvious really!

Martin Wynne wrote:
PaulTownsend wrote:
I have been designing some mixed gauge pointwork and discarded all options as they are forced to include K crossings of angles around 1:10 ,where the gauge lines cross, because Martin's rules imply these can't be fixed Ks.

However having examined his example BG crossover I find he happily includes such fine fixed Ks. :?
Hi Paul,

The rules don't apply when the K-crossing is on one side only. The opposite rail is fully checked, and it is therefore impossible for a wheel-set to take the wrong path through the fixed K-crossing.

See the long check rails opposite the K-crossing: :)



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