Friday, 19 January 2007

Railway Signalling: Watery Lane

Larger version of diagram

In the late 1950s, I was a frequent vistor at Watery Lane signal box on the Stour Valley Line from Birmingham to Wolverhampron. Mond Gas Company's Siding was the next box towards Birmingham (left of diagram). However, this box was only open as required, so more usually the block section was Watery Lane to Dudleyport. In the Wolverhampton direction (right of diagram), Tipton was the next box. On the Birmingham side of the box, there were four lines, Up Goods, Up Main, Down Main, Down Goods. At Watery Lane, these four lines converged into two.

On the Tipton side of the box, Watery Lane controlled access to sidings on both the down side and up side. The up sidings remained busy well into the 1960's. A large, electric overhead travelling crane was provided over part of the sidings for loading and unloading and the yard enjoyed the services of a resident shunting locomotive, diagram T206. This was usually a Drewry 206 h.p. diesel mechanical shunter but occasionally a 350 h.p. diesel electric shunter was rostered. This shunter, in addition to making up wagons to be collected by the various steam-hauled pick-up freights which called during the day and positioning arriving wagons for loading or unloading, would also make the occasional foray to Bloomfield Junction or the Tip Siding at Tipton Curve. After a week of this duty, the shunter would go back to the motive power depot for refuelling and servicing, to either return or be replaced by a similar locomotive.

Watery Lane was an L.M.S. built 'A.R.P'. box, brick-built with a massive flat concrete roof, designed to be more resistant to bombing than conventional boxes. It had an L.M.S. standard lever frame on the side away from the track. These frames stood about 18 inches above the floor and all the interlocking was contained in flat trays protruding to the rear of the frame. The design was significantly more compact than the massive L.N.W. frames and was based on the standard Midland Railway frame.

The block shelf mounted two Fletcher's 'DN' absolute block instruments of ex-L.N.W. pattern for the main lines. The left one communicated with Mond Gas Company's Siding box or, when this box was switched out, Dudleyport. The right hand block instrument communicated with Tipton box. A third instrument on the far left controlled the Up and Down Goods Lines. This was a Fletcher's 'DN' permissive block instrument with a mechanical reminder device to show the current number of trains on the Down Goods Line in a small window. By the time I was a visitor, it was unusual for this reminder to even reach a count of '2'!

The next box at Tipton was permanently manned because it controlled the level crossing gates in Owen Street which were normally open for road traffic and had to be 'swung' for each train. Watery Lane also had a level crossing but, in this case, the gates were normally open for rail traffic. It was just as well that the gates rarely had to be opened for road traffic because there were four heavy gates controlled from a 'ships wheel', requiring considerable effort to wind them across. The level crossing also had a two of 'wicket' gates for pedestrians These gates were normally left unlocked and were in frequent use. Each gate was controlled by a brown lever in the frame. As each train approached, pulling the brown lever reverse in the frame would close the wicket (if it had been left open) and lock it shut. Having locked the wickets, it was common to hear shouting from below as an impatient pedestrian argued to be let across to avoid the delay. The problem, if the signalman took pity on the pedestrian, was that other pedestrians would rush to get through the gate as well. Even worse, opening the wicket on the other side of the crossing to let a pedestrian out would allow others to start crossing in the opposite direction. It could be stressful for the signalman!

We're sure to return here!