LNWR Society Forum

Forum (only) for members of the LNWR Society
It is currently Thu Aug 16, 2018 12:49 am

All times are UTC




Post new topic Reply to topic  [ 7 posts ] 
Author Message
PostPosted: Sun Apr 29, 2018 12:37 am 
Offline

Joined: Tue Oct 13, 2015 9:33 pm
Posts: 21
Location: Waikanae, New Zealand
Can anyone help with the year in which the Rule 55 exemption diamonds (perhaps more accurately "squashed hexagons"?) came into use? I've seen plenty of photographs showing them on LNWR semaphore signals in the BR and late LMS periods, but can't recall seeing them in photographs from the pre-grouping era.

I'm working on the assumption that I would be correct in placing them on selected signals on my 1935-40 LMS Western Division layout, but stand to be corrected.


Top
 Profile  
 
PostPosted: Tue May 01, 2018 3:39 pm 
Offline

Joined: Sat Jun 10, 2017 9:47 am
Posts: 6
I have looked up the information in 'A pictorial record of LMS signals' by L G Warburton. He states that the sign was designed by W C Acfield of the Midland Railway in 1915, probably as a response to the serious accidents that company had suffered at Ais Gill and Hawes Junction. The use of it across the whole of the LMS was decreed by A F Bound in 1929. He was the LMS Signal and Telegraph engineer form April 1929.


Top
 Profile  
 
PostPosted: Tue May 01, 2018 8:11 pm 
Offline

Joined: Tue Oct 13, 2015 9:33 pm
Posts: 21
Location: Waikanae, New Zealand
Thank you Tim. The information is exactly what I was looking for. You've also convinced me to track down a copy of Graham Warburton's book. Richard Foster's companion volume on LNWR signalling is one of my well-thumbed "bibles", but I don't have the Warburton book in my library.


Top
 Profile  
 
PostPosted: Thu May 03, 2018 7:58 am 
Offline

Joined: Sat Jun 10, 2017 9:47 am
Posts: 6
I have a copy of the original edition which I bought when it was published for £1.00. I believe it has now been republished as a paperback for about £15.00, which I suppose is not too bad a rate of inflation. The reference for the new edition is ISBN: 9781906419417


Top
 Profile  
 
PostPosted: Thu May 03, 2018 10:06 am 
Offline

Joined: Tue Oct 13, 2015 9:33 pm
Posts: 21
Location: Waikanae, New Zealand
I tracked down a first edition hardback on AbeBooks. It is now on its way to me here in the Antipodes - at a total cost of rather more than 15 pounds I regret to say!


Top
 Profile  
 
PostPosted: Fri May 04, 2018 7:48 pm 
Offline

Joined: Sun Oct 23, 2011 4:19 pm
Posts: 345
I concur. I believe the first companies to have the diamonds were the MR, and I think the GN, in about 1913. In fact these were notified in the LNWR NN&P District weekly notices for 1913 - and in contemporary WTTs.

The LNWR was not far behind, clearly.


Top
 Profile  
 
PostPosted: Mon Aug 13, 2018 11:09 am 
Offline

Joined: Sun Oct 23, 2011 4:19 pm
Posts: 345
The notice for the GNR was an instruction issued in LNWR NN&P weekly notice, w/e Jan 31 1913, also in CD WTT of Feb 1913, SD of July 1913, and also in Rule Book amendments dated Jan 1913 (amending the GNR instructions on p280 of the LNWR 1911 Rule Book). It is also in L&YR Supplement D of Jan 1915 to that Co's appendix of 1912 (section for Working Over the GNR).

I think the MR notice for diamonds (lozenges) was issued around the same time, but don't have the reference to hand. On the MR it was an Appendix Instruction, and there was no alteration to the text of the Rule Book.

The NER apparently also used them by Oct 1912, although this seems odd. My reference is the Supplement of that date to the LNWR Rule Book of 1911, amending the NER's instructions on p294 thereof; also L&YR Supplement D of Jan 1915 to that Co's appendix of 1912 (section for Working Over the NER). I am wondering if the Rule Book Supplement was perhaps a retrospective one, issued at a date later than that printed on it? I really need to check the NER's own documentation.

I don't think the LNWR or GWR had them until quite a bit later. Possibly not the GCR either.

Prior to adoption of the lozenges, it was usual to have an illuminated sign lettered "TRACK CIRCUIT" or "TRAIN WAITING INDICATOR IN BOX".

I am doing some work on this subject at the present, but there is a lot more to do ...


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 7 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

cron
Powered by phpBB® Forum Software © phpBB Group