UM.72: Difference between revisions

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[[File: 1977-03.png|border]]
[[File: 1977-03.png|border]]


The reversible signalling was installed in 1980 <ref>Signalling Notice [[31/W/2773]]</ref>.
The reversible signalling was installed in 1981 <ref>Signalling Notice [[31/W/2773]]</ref>.


==Conversion to Controlled==
==Conversion to Controlled==

Revision as of 12:49, 15 November 2014

Back to Control Functions.

Origin

UM.72 was a 4-aspect automatic signal commissioned at Swindon MAS Stage 1 on 14 November 1966[1]. At that stage it was supervised by Uffington SB.

Controlled passed to Swindon Panel under Swindon MAS Stage 5 on 3rd March 1968.

Previous Signal Line Line Next Signal
UM.73 Up Main Up Main UM.61

Conversion to Automatic

This signal was planned to be "converted to an automatic" (from what?) on 2 August 1970:

SN Won AKOverton-1.jpg

But the work did not take place as planned:

SN Won AKOverton-2.jpg

and the signal was actually converted to automatic on 6 September of that year.

The signal is shown as already an automatic in the resignalling notice S.2498, so unknown what it was converted to an automatic from...

Alterations in connection with Reversible Signalling

From 6 March 1977 the signal was mounted on a right-hand cantilever, in readiness for the future conversion to controlled (SN.83) and installation of SN.683.

1977-03.png

The reversible signalling was installed in 1981 [2].

Conversion to Controlled

This signal was taken out of use when Bourton Interlocking was commissioned on 1/10/77, as described in the following WON entry:

WON Bourton 1977.png

The signal became a controlled signal - SN.83


References

  1. Signalling Notice S.2498
  2. Signalling Notice 31/W/2773