Different types of valve-gear
The locomotive shown here had no counterweights on the
valve-gear mechanism, so pulling the lever lifted the whole
linkage. You must prepare to take the weight before releasing
the catch, or you'll be pitched forward.
Different types of valve-gear |
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| Practising the use of valve-gear control
(reverser control bar, or cut-off control, or Johnson bar)
on different types of locomotive.
The locomotive shown here had no counterweights on the
valve-gear mechanism, so pulling the lever lifted the whole
linkage. You must prepare to take the weight before releasing
the catch, or you'll be pitched forward.
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| Back |