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GWR Route: Banbury to Wolverhampton
GWR Route: North Warwickshire Line
Birmingham Snow Hill Station: gwrbsh1738
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Interior of Birmingham South Box in the year it closed. The
South Box opened in 1913 and was closed on 11th September 1960. It had a
ninety-six lever power frame at 2 inch centres manufactured by Siemens
Brothers. This allowed the frame to be fitted in a Signal Box operating floor
only twenty-nine feet long. The initial requirements of the southern end of the
new station totalled sixty-five working levers as follows: 22 -
Signals 15 - Switch points and bars 27 - Disc signals 1 - Locking
bolt
The lever numbers and designations can be seen on the brass plates
in front of each of the mini levers on the frame. Hanging above the frame is a
track diagram showing the location of the track circuits and all switches and
signals controlled from the Signal Box. Below this is a shelf with the
instruments used to communicate to and from adjacent Signal Boxes. At this end
of the shelf the instruments include the keyless train describer for platforms
5 and 6, which was operated from Birmingham North Signal Box (the small
apertures are for registering subsequent trains).
Robert Ferris
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