stick lock

[PJW]

Not a term with which I am familiar; what was the source which used it and the context.

If forced to guess then I'd assume that it meant an electric lock applied to a mechanical signal lever which permitted the lever to be pulled only the once [#] for every "line clear" of the block section to the adjacent signalbox.
[# or indeed might be configured as "one train" rather than "one pull"].
This is however just a guess in the absence of enough info; does it make sense in the context?

It could be something else such as a "route lock stick" used to impose maintained locking on points & conflicting routes after a train has been routed past a signal........

Hi Signalling Professionals:

Recently, I came across a signalling terminology "stick lock", can anyone define what does it mean ?

and in what situation would the "stick lock" be applied in the signalling design ?



thanks