1973 Tube Stock Shunting Controls
Fig. 1: Original Shunting
original shunting control cabinet provided on 1973 Tube Stock was mounted in the end wall
of the UNDM car on the left hand side of the end doorway. A simple set of controls
were provided as shown here. Included, along the top was a set of MCBs (Miniature
Circuit Breakers). Along the right hand edge is a set of three interlock plungers
which were depressed when the door was closed. They provided indications to various
items of equipment that the cabinet door was closed and locked when out of use.
Below the air gauge were three indicator lights
showing "Other Unit Cab On", "This Unit Cab On" and "Passenger
Alarm On". The whistle button was on the right.
The controls consisted of a selector switch on
the left and the controller on the right. This was curious, since the driving cabs
were configured with the controls round the other way.
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Fig. 2: Refurbished
Shunting Control Cabinet
This is the new shunting control panel provided
on the outer end of each 1973 Tube Stock UNDM car. On the left is the key operated
selector switch giving forward or reverse movement. Next are three buttons for
overload and MA set and trip. The use of MG on the labels is incorrect as the 1973
Tube Stock has motor alternators, not motor generators. The last train on the
Underground to have motor generators was the 1959 Stock.
Next, is the traction/brake controller with a
small push button on top of the centre spindle, which is used to operate the deadman
facility. The controller only allows train speed to operate up to "series"
configuration, about 20 mph. On the right are three indicator lights showing
"This Cab On", "Other Cab On" and "Passenger Emergency
OK". Finally, the large red button is to operate the whistle.
All this equipment is located under a perch seat
at the end of the car. The cover is locked shut when out of use and is linked to an
alarm system in the cab which shows if the cover has been opened. Photo kindly
supplied by "Tube Troll".
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Tube Stock Page.