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Re: Signalling in Victoria




: > An easy way to tell if a semaphore dwarf was two position or 3 position is to
: > look at where the "painted"semaphore arm was. If it was above the centre it is
: > a 2 pos, 3 pos had the arm "painted" below the centre.
: >
: > I was toild, but I have no evidence that there was a wire operated 3 pos dwarf
: > on SAR I think. Don't ask me how it worked though.
: >
: > I'll dig through some signal slides to see where my photo's of 2 pos semaphore
: > dwarfs were.

: I just sent Chris Gordon an image of the two-position lower quadrant
: mechanically operated dwarf at the Showgrounds.  This signal had the "arm"
: painted exactly across the centre.  Chris' page shows a mechanically operated
: UQ two-position dwarf with the arm below the centre, and another image of
: mine shows a three position UQ motor driven dwarf with the arm below the
: center.

: I don't have any photo showing a dwarf with the arm painted above the center -
: but that doesn't mean there weren't any.

Signals with the arm paitned accross the middle operate anit-clockwise
like a 'somersault' two position signal.
Signals with arms painted below the centre operate colckwise, most are
three postion motor ones but like Ringwood there were some two position
wire pull ones.  These are like a three position auto semaphore signal
(expect a two position one has no green light.)

Signals the operate anti-clockwise (arm in the middle) show Red/Green
signals that operate clockwise (arm below the middle) show
Purple/Yello/Green or just Purple/Yellow (like Ringwood) these are the 
1960's versions (or maybe 1950's, I can't remeber I was too young, 
opps not even thought of.

Regards,
--
Chris Gordon
http://www.ecr.mu.oz.au/~cmgord