Signals

THE SIGNAL BOX


Railway signalling discussion

Southern Region ground signals

British signalling of the past (UK, excepting Northern Ireland)

Southern Region ground signals

Unread postby mikewturner » Fri Mar 23, 2018 9:04 am

Hi guys

Is there such a thing as a 'stacked' SR ground signal or did they place them side by side when applying to more than one route, or not bother and always have just one?

Regards

Mike
User avatar
mikewturner
Crossing box
Crossing box
 
Posts: 54
Joined: Sun Jan 27, 2008 10:09 am
Location: Crewe Division

Re: Southern Region ground signals

Unread postby davidwoodcock » Fri Mar 23, 2018 9:22 am

The norm on the SR and its constituents was to provide only a single dolly (be it arm, disc, flap, revolving disc or colour light). That said, there were a handful of exceptions that prove the rule, there were a pair of arms, later discs, at Boscarne Junction LSWR, for example and there were also a very few places with "four-aspect" colour light ground signals which could display R/Y, G/Y or R/G (which conveyed an instruction specific to each location).
davidwoodcock
Rest-day relief
Rest-day relief
 
Posts: 965
Joined: Tue Jul 12, 2011 7:58 am
Location: Champlon, Belgique

Re: Southern Region ground signals

Unread postby RichardH » Fri Mar 23, 2018 12:08 pm

As David says the SR policy seems to have been a single signal reading over multiple routes with conditional locking as necessary – it was neater and saved on trackside infrastructure and levers at the expense of locking complexity. Certainly the mechanical ground signals weren’t designed to be stacked and were too large to be mounted one raised up behind the other in the six foot.

The LBSCR does seem to have had some double ground signals and they normally employed separate signals for each route, so where there were several connections close together the SR only replaced the rear-most signal and the other levers became spare.
RichardH
Branch line box
Branch line box
 
Posts: 196
Joined: Wed Dec 30, 2009 1:43 pm
Location: SR - Central Section

Re: Southern Region ground signals

Unread postby Chris Osment » Fri Mar 23, 2018 3:06 pm

Looking at former L&SWR/S&DJR locations.....

The general rule for the pre-grouping ere seemed to be one disc (usually a Stevens-type 'flap' signal) at each point end, for one route only. Mind you, certainly there were some cases where two discs were placed side-by-side at a single point end, one reading for the RH route and the other for the LH route.

In SR days, as layouts were updated and signals replaced, there were also several examples where side-by-side dummies, or one followed shortly thereafter by another, were replaced by a single disc which was worked by both the old levers (although obviously only one at any one time!) thus avoiding locking alterations. One location where side-by-side discs were retained by the SR was at the west end of the up line at Exeter Central, where they survived well into the late 1960s.
Chris Osment
West Country Railway Archives
http://www.railwest.org.uk
User avatar
Chris Osment
Main line box
Main line box
 
Posts: 2297
Joined: Sun Nov 11, 2007 9:32 am
Location: Somewhere in the West Country

Re: Southern Region ground signals

Unread postby Chris Rideout » Tue Mar 27, 2018 3:10 pm

Two ground signals (either side of the track) could be found at Southampton Terminus from the loco/turntable road towards the platforms, IIRC. Another place was at Cowes, IOW where the routes led into the station platforms from the Inner Home. The two discs were next to each other. In both cases, the routing only applied to the route leading from the nearest set of points.
Chris Rideout
Branch line box
Branch line box
 
Posts: 335
Joined: Fri Dec 23, 2011 4:59 pm
Location: Sunny South Coast

Re: Southern Region ground signals

Unread postby Chris Rideout » Wed Mar 28, 2018 11:49 am

I forgot another place. At Petersfield, there was a double ground signal but it was removed because it was "non standard". It may have been GWR or LMS pattern. It spent many years in the S&T storeroom (probably at Eastleigh) and a selling price in the region of £60 was quoted. AFAIK, it was still unsold when I left the railway about 9 years later.
Chris Rideout
Branch line box
Branch line box
 
Posts: 335
Joined: Fri Dec 23, 2011 4:59 pm
Location: Sunny South Coast


Return to Signalling - historical

Who is online

Users browsing this forum: No registered users and 3 guests