THE SIGNAL BOX

SIGNALS

BRITISH RAILWAY SIGNALS

SR and BR(S) Signals

SR lattice-post bracket signal

This grand signal was erected in 1938 at North Kent West Junction when the layout was remodelled. Originally, the left-hand doll of the bracket carried a calling-on arm below the main signal. The right-hand dolls at one time had both a distant arm and a calling-on arm below.

More information about North Kent West Junction can be found in the Photo Gallery.

Additional notes provided by John Creed

SR lattice-post bracket signal

SR stop signal with calling-on arm

SR stop signal with calling-on arm

This signal is very typical of Southern Railway construction, economising by building the post from old sections of rail.

Below the main arm is a Calling-on signal, allowing trains to be admitted to an occupied line. The Southern Railway fitted a letter "C" to the arm to identify this function. Notice how the spectacle plate almost entirely shielded off so as to display a miniature signal aspect to drivers at night.

The enamelled steel arms are ribbed for rigidity.


SR splitting distant signal

This signal is the Eridge Up Starting, with Birchden Junctions Distants. The two distants are mounted at the same level, and indicate to drivers which route has been set at the junction ahead. In this instance, the right-hand route for Tunbridge Wells is set.

The signal combines rail-built construction of the main post with the lightweight lattice construction of the dolls.

The arms are enamelled steel with folded edges.

SR splitting distant signal

BR(S) route indicating signal

BR(S) route indicating signal

To save the number of signal arms reading into a terminal station, or other complex area, a route indicator was used in conjunction with the signals. The appropriate indication was shown, illuminated from behind, through a glazed hole in the curved-top metal box.

The arms alongside are also SR, the lower (calling-on) arm has a white dot rather than a stripe because it was original provided with a white ring. It also has a small route indicator alongside to display a letter "C" when the arm is cleared. This method of separately identifying Calling On, Shunt Ahead and Warning Signals was adopted by BR, replacing the letters attached to the arms (see the signal at North Kent West Junction higher up this page) used by the Southern Railway.

Here, the home signal has been cleared to admit a train into platform 5 at Weymouth.

Additional notes by Nick Wellington