RMweb Premium jbqfc Posted May 3, 2014 RMweb Premium Share Posted May 3, 2014 while in Guilford yesterday I spotted this CWR expansion joint a took a photo to post on here hope this is of use to some of you edit to add picture Link to post Share on other sites More sharing options...
Debs. Posted May 3, 2014 Share Posted May 3, 2014 I believe that type of 'breather' is known as a Brogden Joint. Link to post Share on other sites More sharing options...
LNERGE Posted May 4, 2014 Share Posted May 4, 2014 Another type here.. Link to post Share on other sites More sharing options...
RMweb Premium melmerby Posted May 4, 2014 RMweb Premium Share Posted May 4, 2014 while in Guilford yesterday I spotted this CWR expansion joint a took a photo to post on here hope this is of use to some of you CWR EXPANSION JOINT (1024x576).jpg edit to add picture Is that old Bullhead rail that is being used to keep the sleepers together at the joint? Cheers Keith Link to post Share on other sites More sharing options...
RMweb Premium jbqfc Posted May 4, 2014 Author RMweb Premium Share Posted May 4, 2014 Is that old Bullhead rail that is being used to keep the sleepers together at the joint? Cheers Keith yes it is john Link to post Share on other sites More sharing options...
LNERGE Posted May 4, 2014 Share Posted May 4, 2014 I'd say the right hand bit of bullhead is a bit of 85lb rail. What do others think? Link to post Share on other sites More sharing options...
RMweb Premium melmerby Posted May 4, 2014 RMweb Premium Share Posted May 4, 2014 I'd say the right hand bit of bullhead is a bit of 85lb rail. What do others think? DSC09091.jpg Don't like to mention it, but haven't they forgot the sleepers? Keith Link to post Share on other sites More sharing options...
Southernman46 Posted May 4, 2014 Share Posted May 4, 2014 No - normally an expansion joint is supported on 4 large x-section timbers (not sleepers) and the rails disappearing into the distance are sufficiently long enough to give at least the minimum distance to the next rail joint. (normally 4.5m or 14' 9"). So this joint has been removed from the track in one piece and looks as though it is intended for re-installation in an alternative site presumably replacing one in worst condition. The purpose of the bullhead rail is to keep the 4 main timbers supporting the expansion switch itself at the correct distance apart given that the rails immediately above are constantly moving and if not properly lubricated will drag the timbers out of position. This can lead to the planed part of the rail sitting out of the rail chair which will result in deterioration and potentially a broken switch blade (from bitter experience -not a pleasant situation to have as a Section Manager). Link to post Share on other sites More sharing options...
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