Templot Club Archive 2007-2020                             

topic: 623Switch detail pics
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posted: 13 Nov 2008 14:11

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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Some excellent pics of REA bullhead switch detail, kindly supplied by Mick Nicholson.

The white diamond mark on this LNER ground disc signal indicates track-circuiting, as can be seen from the wire links across the rail joint and the insulated joints in the sole plate on the toe timber and in the stretcher bars.

Notice the variable spacing of the chairs in the right foreground, showing the closed-up sleeper spacing adjacent to a rail joint:

switch1_1983.jpgswitch1_1983.jpg


A trailing view of the same switch:

switch2_1983.jpgswitch2_1983.jpg


Here is a closer view of that. I have added some yellow lines because this picture is an excellent illustration of the sharp "set" (bend) which occurs in the diverging stock rail just ahead of the switch tips:

switch_set_1983.jpgswitch_set_1983.jpg

More about that in: this topic.


Mick also supplied this picture of a badly worn switch tip at Beverly. It's probably better not to try to replicate this on a model: :)

worn_switch_tips_beverley.jpgworn_switch_tips_beverley.jpg

Many thanks, Mick. :thumb:

Martin.



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