Euston Station signal box

Above: The signalbox is depicted above in a night time shot around 1952 The frame is a Westinghouse Style 'L' Power Frame which is all electrically locked. The frame was formed of 19 x 12 way section 227 levers, {19x12}-1 = 227 levers, as the last “lever” space is unavailable. The frame was built is 1952 for British Rail LMR from the parts originally destined for Preston North. This lever frame saw less than 13 years service here, it being superseded when the station was modernised in the 1960's

The impressive Westinghouse Brake & Signal Co. Ltd lever frame is depicted above. Behind the signalling levers one can see the glass roundels showed the signal aspect, being Red = Signal on and White = signal off. and for Distant signals Yellow = Distant Signal On / Off = Distant Signal Off. The flat indicators showed an 'N' and 'R' indication for points to show the points as having been detected in their Normal or Reverse position. The "F" light became lit when the points were free to move, with a White = Points Out of Correspondence. The odd grouped extrusions above groups of signal indications were route indications which lit on the frame when a route was set to confirm to the signalman that the correct route was set before he cleared the signal because the same signal lever cleared the signal for all routes. The two large track diagrams can clearly be seen.

The frame was manned with three signalmen on duty at on a three shift system

The first train describers were temporary and two years latter new pattern magazine describers including automatic clear out were installed. Pictured in 1954 is the new pattern describers showing the describer for the Up Slow Line, which were located at the far left hand end under levers 40 to 50.

On the diagram the track circuit light are 'on' depicting up to three trains in the 'Backing out roads 1, 3 & 4.
There were three track circuits on the Backing out roads at this time (later reduced to two with the coming of the PSB) but as 4 Backing out roads could just about hold 12 coaches + loco and 1 Backing out roads could hold about 8 + loco I would suggest that there is only one train on each of the three Backing out roads shown occupied.

The south end TC on each Backing out roads (locally known as a bank) was for the Lime Street Controls and was usually two locos long only. So if you look at the south end of 2 Backing out roads you will see a single track lit and this would be a loco.

My thanks to Graham Floyd for the Backing out roads detail information

Diagrams

Adjacent boxes

Up Fast, Down Fast, Up Slow, Down Slow, and Down Empty Carriage lines.
Camden No.1 (1233yds) was the adjacent box on the Up Fast, Down Fast, Up Slow, Down Slow, and Down Empty Carriage lines.

Boxes Replaced