DM.70: Difference between revisions
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Link back to [[Control Functions]]. | |||
DM.70 was the protecting signal for Ashbury Level Crossing on the Down Main. | ==Origin== | ||
DM.70 was a 3-aspect, semi-automatic signal commissioned at [[Swindon MAS Stage 1]] on 14 November 1966<ref name="S.2498">Signalling Notice [[S.2498]]</ref>. At that stage it was supervised by [[Uffington]] SB. | |||
It was the protecting signal for Ashbury Level Crossing and Ground Frame on the Down Main. | |||
Controlled passed to Swindon Panel under [[Swindon MAS Stage 5]] on 3rd March 1968. | |||
{{ | |||
Template:LastNextSignals | |||
|LastSignal=[[DM.69]] | |||
|LastSignalLine=Down Main | |||
|NextSignalLine=Down Main | |||
|NextSignal=[[DM.72]] | |||
}} | |||
==Conversion to Controlled== | |||
This signal was planned to be converted to a controlled signal ([[SN.18]]) (from a semi-automatic) on 2 August 1970: | This signal was planned to be converted to a controlled signal ([[SN.18]]) (from a semi-automatic) on 2 August 1970: | ||
| Line 11: | Line 28: | ||
and the signal was actually converted to [[SN.18]] on 6 September of that year. | and the signal was actually converted to [[SN.18]] on 6 September of that year. | ||
==Conversion to Automatic== | |||
Latterly the signal was converted back to an automatic. | Latterly the signal was converted back to an automatic. | ||
==Alterations in connection with Reversible Signalling== | |||
From 19 June 1977 the signal was mounted on a right-hand cantilever, in readiness for the future installation of [[SN.620R]] on the same structure. | |||
[[File: 1977-06.png|border]] | |||
The reversible signalling was brought into use in 1981 <ref>Signalling Notice [[31/W/2770]]</ref>. | |||
==Upgrading to 4-aspect== | |||
The signal was re-fitted with a 4-aspect head at 04.50 on Monday 28 January 2002, although the top yellow was not brought into use. | |||
[[File:WON-2002-02.png | border]] | |||
---- | |||
The top yellow aspect was planned to be brought into use on 7 February 2000, as described in [[GWS.15]], but, due to 'construction difficulties' the work did not take place. | |||
[[File:WON-2000-03.png | border]] | |||
The top yellow was then planned to be brought into use on 11 February 2002. | |||
[[File:WON-2002-06.png | border]] | |||
and | |||
[[File:WON-2002-03.png | border]] | |||
but wasn't until 18 February 2002.... | |||
[[File:WON-2002-04.png | border]] | |||
==References== | |||
<references /> | |||
Latest revision as of 13:02, 15 November 2014
Link back to Control Functions.
Origin
DM.70 was a 3-aspect, semi-automatic signal commissioned at Swindon MAS Stage 1 on 14 November 1966[1]. At that stage it was supervised by Uffington SB.
It was the protecting signal for Ashbury Level Crossing and Ground Frame on the Down Main.
Controlled passed to Swindon Panel under Swindon MAS Stage 5 on 3rd March 1968.
| Previous Signal | Line | Line | Next Signal |
|---|---|---|---|
| DM.69 | Down Main | Down Main | DM.72 |
Conversion to Controlled
This signal was planned to be converted to a controlled signal (SN.18) (from a semi-automatic) on 2 August 1970:
But the work did not take place as planned:
and the signal was actually converted to SN.18 on 6 September of that year.
Conversion to Automatic
Latterly the signal was converted back to an automatic.
Alterations in connection with Reversible Signalling
From 19 June 1977 the signal was mounted on a right-hand cantilever, in readiness for the future installation of SN.620R on the same structure.
The reversible signalling was brought into use in 1981 [2].
Upgrading to 4-aspect
The signal was re-fitted with a 4-aspect head at 04.50 on Monday 28 January 2002, although the top yellow was not brought into use.
The top yellow aspect was planned to be brought into use on 7 February 2000, as described in GWS.15, but, due to 'construction difficulties' the work did not take place.
The top yellow was then planned to be brought into use on 11 February 2002.
and
but wasn't until 18 February 2002....
