crosscity
Member
1 - generally track circuit block via relay interlocking or computer based interlocking using train describers to pass information between the boxes.
Milner Royd Junction is levers and colour lights. I believe Halifax and Mill lane are NX panels.
Thank you for correcting me. Just because I didn’t see something doesn’t mean it never existed.Of course there was a Signal Box at Dryclough Jct it closed in the 1970s I often went there with a friend of mine who was a Relief Signalman.
This is a great archive. The pictures of Halifax East clearly show I was wrong about the ‘micro-levers’. In 45 years, I suspect some images in my mind have merged!http://photos.signalling.org/index?/category/318-calder_valley_line has some reasonably recent pictures of the boxes, inside and out. Should answer any questions about what equipment is there
Thank you to you all who have explained how trains are passed from one box to another, what technology is required, and the rules to make sure it was operated properly.You’re not far off, as the others have said. Hebden Bridge offers the train to Milner Royd (a single beat for call attention, then 5 consecutive beats for ‘is line clear’ for a class 6 freight) whichever way it’s going. The former’s section signal (or intermediate block home, as I believe is the case here) is electrically locked until the latter accepts it and gives a ‘line clear’ (which will work for ‘one pull’ only). Two beats for ‘train entering section’ when it’s on its way, then Milner Royd sends ‘train out of section’ (2-1 preceded by call attention) once the train’s arrived complete with tail lamp - that’s important because it’s the only way of proving that’s the section’s clear again.
Although I visit the area infrequently, the box at Milner Royd Jct has been a constant in my life, a reminder of being young and how I felt growing up at the time. I always look back at that time with affection. The world around me and the railway has changed immeasurably in 45 years, but to know that Milner Royd was tinging Halifax and Hebden Bridge in the same way as it was when I was a teenager gives me a warm glow. It’s its last day tomorrow and I will be toasting its past.
Would anyone like to guess what the last bell code will be for any of the boxes? Will it be 7-5-5?