Tuesday 27th Nov
A little progress at Broadway today with the completion of the
installation of the signal wire stakes up to Childswickham Bridge (all now concreted in).
And here is the newly installed advanced starter signal post adjacent to the bridge which was planted last Friday by JCB et al.
While we had the mixer going, a concrete block has been prepared to mount the casting of the detector unit for the south points:
Now that it is correctly positioned, we have taken a measurement for the length of a further bar to secure the casting to the nearside rail - this to ensure that the detector unit cannot move relative to the track (just in case the concrete block moves!!) Hopefully next week I can show you a picture of the finished set-up.
Last Friday saw the erection of three posts for the home, advanced starter and distant signals. George B captured this picture of the distant being tamped in by the JCB:
Notes about the cabling required between Toddington and Broadway:
So far a 20 pair cable has been trenched in up to Buckland where a line-side connection cabinet is required. This corresponds with the insulated breather joint of the continuously welded track, so connections for track circuiting will also be made here. The advanced party of Neil C and Keith L took the pickup with the necessary aggregate, etc to mix concrete on site. Here are the before and after:
Note the 90 deg pipe to feed the cable up into the cabinet.
This cabinet will also house the batteries and relay for energising the track circuit.
The next length of cable will terminate at the distant signal where another trackside cabinet will be required.
Altogether there will be several more of these cabinets required as the cabling progresses.