DayReturn Posted August 14, 2019 Share Posted August 14, 2019 Can anyone help me with a picture of the Signal Box Diagram for St Albans Abbey station? I've seen a low-res image of one on Sithlord's blog site, but I need the detail. My immediate need is to work out the locking and hence the point rodding for the run-round. I know there was a single lever ground frame, I have a couple of prints of photos of it that among a number that Joe Worrall gave me, taken by Alan Sibley in the 1960s. I also know there was a gong and I believe this was mounted at the platform end, and there was a basic point lever controlling the switch between the regular run-round loop and the goods reception road. I would assume that the ground frame was locked and unlocked from the signla box, with an intermediate lock midway from the box to the frame. Published photos seem to show a single rod outside the run-round loop, but the station far end comprises three switches and two trap points. Both the traps would have to sync with the platform road switch. Link to post Share on other sites More sharing options...
micknich2003 Posted August 14, 2019 Share Posted August 14, 2019 Have you tried the Signalling Record Society website? Link to post Share on other sites More sharing options...
RailWest Posted August 14, 2019 Share Posted August 14, 2019 You might also like to try this link. http://www.iwemrc.org.uk/st_albans_abbey.asp It is possible that the layout builder(s) might have had a copy. Link to post Share on other sites More sharing options...
bécasse Posted August 14, 2019 Share Posted August 14, 2019 I wouldn't assume that the ground frame was locked directly by the signal box. The LNWR were very keen on the use of Annett's Keys to lock/unlock ground frames, sometimes sequentially. Link to post Share on other sites More sharing options...
Sithlord75 Posted September 6, 2021 Share Posted September 6, 2021 Did you end up finding what you were looking for? Link to post Share on other sites More sharing options...
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