[CBQ] Signals

["Rupert & Maureen" <gamlenz@ihug.co.nz>]

If anyone is interested in signalling or wanting some photos of semaphore type 
signals, there is a five page article from 1911 relating to Absolute Permissive 
Block System for single track, shown in use between Derby and Denver.  There 
are a number of photos showing the various semaphore signals, locations, wiring 
diagrams, etc. 

http://babel.hathitrust.org/cgi/pt?id=mdp.39015080061115;seq=41;q1=Burlington;start=1;size=25;page=search;num=31;view=image

Regards

Rupert Gamlen
Auckland NZ

[Non-text portions of this message have been removed]



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