Templot Club Archive 2007-2020
|
|||
| author | remove search highlighting | ||
|---|---|---|---|
|
posted: 13 Nov 2008 14:11 from: Martin Wynne
click the date to link to this post click member name to view archived images |
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.jpg  A trailing view of the same switch: switch2_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.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.jpg  Many thanks, Mick.  Martin. |
||
| Please read this important note about copyright: Unless stated otherwise, all the files submitted to this web site are copyright and the property of the respective contributor. You are welcome to use them for your own personal non-commercial purposes, and in your messages on this web site. If you want to publish any of this material elsewhere or use it commercially, you must first obtain the owner's permission to do so. |