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LMS "ratio" plastic kit signals..


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Made this half semaphore half aspect signal...

not sure were it would be located though..

These were used at the transition from Semaphore to Multiple Aspect Signalling arears, usually where the signal box was expected to have a short life due to subsequent planned schemes. 

See paragraph (ii) and diagrams 2(a)/2(b)/2© in Appendix  A of this document http://www.rssb.co.uk/rgs/standards/SSP022%20Iss%201.pdf

Edited by TheSignalEngineer
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Rectory Junction had one until it closed. There was one at Nuneaton Abbey. I have the signalbox end of the equipment. This was a brass cased Indicator 250 (C62/2515) There are of course two Eastern Region versions in Ely Dock.

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Made this half semaphore half aspect signal...

not sure were it would be located though..

 

You need to remove the green glass from the semaphore signal arm and replace it with a metal plate. When a proceed indication is given the green (or single or double yellow indication is given by the colour light head mounted below the arm).

 

You also need to ensure that the colour light head does not show a red aspect - the red indication is given by the red glass and lamp in the semaphore arm.

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The miniature arm which is clear should be red with a vertical white stripe, as it stands it's wrong but there won't be many who are bothered.

 

Nice work

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I've stood on that bridge !

 

Controlled locally from a lever frame, I think it was on private sidings and therefore down to their whims rather than railway rules. This section closed when the new connection opened in the early 1980s.

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If you want weird there used to be a signal arm in Rugby bolted to the top of a manual OHL switch gear control, Moving the ground level handle rotated the signal arm from facing down the track to edge on.

I think it was used for controlling movements into the cement works.

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On 13/10/2019 at 04:53, RailWest said:

I'm not familiar with LMS practice but - ought not the 'Rule 55' diamond go below the lower arm on the LH doll, as surely it must apply to both the arms for that line?

I think you're right, the diamond would be located for sighting purposes, for a train that had stopped at the signal. So having it up high is wrong.

Usually, the diamond would be located on the LH post, but in this case it would be behind the ladder, so not the best place.

So the most likely place is on the horizontal girder, on a black patch so that it doesn't hide amongst the white of the girder.

 

There is a photo in LNWR Signalling of a diamond, mounted between the stop & distant arms, but this is on a low signal directly in front of a tunnel, so not up high.

 

Edit to add

 

Does the position of the diamond in relation to the distant matter, as the train won't be stopping there if the distant is at danger & the stop signal clear?

Edited by kevinlms
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IMHO diamonds would be irrelevant in terms of distant signals, as trains would not normally be held at a distant.

 

However, you do need to be careful in the placement of the diamond. Firstly, why are you providing a diamond anyway? Having answered that question, then does your answer apply to both the tracks that pass under the gantry? If the answer is 'yes' then both dolls need one, or else there could perhaps be a common one on the gantry itself applicable to both dolls. If the answer is 'no', that it applies only to the LH road, then the diamond needs to be on that doll not the gantry to indicate that it does NOT apply to the RH doll.

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On 12/10/2019 at 18:53, RailWest said:

I'm not familiar with LMS practice but - ought not the 'Rule 55' diamond go below the lower arm on the LH doll, as surely it must apply to both the arms for that line?

Yes and no - if we are pedantic about the wording rather than the position of the diamond.  The diamond actually indicates a modification of Rule 55 (as it once was) because there is  a track circuit in rear of (or in some cases a Call Plunger at) that signal.  Therefore it applies to 'the signal' - which in this case consists of a running arm and a subsidiary and the Rule modification therefore applies to both.  So the diamond should be below both arms and, as already noted only needs to be seen when a train or movement is standing at the signal, so no need for distant sighting etc.

 

On a splitting signal remember that the diamond applies to that signal and the line in rear of it - irrespective of how many routes it might lead to with various additional dolls.  Therefore the diamond on a bracket structure should on the main upright which carries all the dolls.  On a gantry structure, with no common upright adjacent to the line the signals referred to the usual approach on the LMR seems to have been to put a diamond on each doll but no doubt 'Signal Engineer' can offer a more positive answer on that.

 

Distant Signals - other than lower arm distants - were/are signals where Rule 55/its modern equivalent does not apply because a train need not be stopped at a Distant Signal showing caution.  When there is a lower arm distant below a stop signal then practice for positioning the diamond varied  but again we come back to the point that the diamond only needs to be seen at relatively close range so logically it can be mounted quite low unless (as mentioned above) other circumstances come into play)

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