Re: Three Position Signalling

["Exnarc" <gwrly@netspace.net.au>]

No problem David, I wasn't trying to trip you up, it was just that at the
time I was involved with signal sighting with Alan Hales so I remember the
sequence of events.

Bob.

David Guymer <davidmg@optusnet.com.au> wrote in message
37FC3CA5.12BA80E9@optusnet.com.au">news:37FC3CA5.12BA80E9@optusnet.com.au...
> I was not aware of the dates for theese signals outside of the
metropolitan
> area. It was not my intention to indicate that the signal at Epsom Road
was the
> first of it's type, but that it predated the Rule Book. Thanks for setting
me
> straight on the order of these signals.
> David G.
>
> Exnarc wrote:
>
> > David Guymer <davidmg@optusnet.com.au> wrote in message
> > 37F9AD7B.CD073581@optusnet.com.au">news:37F9AD7B.CD073581@optusnet.com.au...
> > >
> > >
> > > Exnarc wrote:
> > >
> > > > snip
> > > >
> > > > There are (at least) 3 locations where 2 Position Dwarfs show a
Yellow
> > > > Light.
> > > >
> > > > 1: Portland.
> > > >
> > > > 2: Showgrounds. From Platform to Up Refuge Siding.
> > > >
> > > > 3 Newport. Dual Gauge to Anzac Siding.
> > > >
> > > > They are mounted on the same post as a Home Signal and only light up
> > when
> > > > the signal is pulled off. Unlike a Calling On signal they do not
read to
> > the
> > > > same road as the Home signal, but other than that they look the
same,
> > > > except, they have the word "Siding" painted on or attached to the
> > target..
> > > >
> > > > The purpose of these signals resulted from the need to find a
> > replacement
> > > > for the mechanical Disc signal, so the Siding Dwarf was developed.
> > > >
> > >
> > > Not quite the Dwarf at Epsom Rd (Showgrounds) existed well before it
was
> > written
> > > into the rule book. I don't know why the powers that were decided to
> > finally
> > > include this anomaly in the rule book but it was certainly after the
fact.
> > > David G.
> > >
> > Not quite David, the Portland Dwarf was the first, Alan Hales introduced
it
> > when he was Supt Safeworking. It came out as a Special instruction
first,
> > then the Show Grounds was added.
> >
> > The first instance was at Murtoa during the CTC construction when the Up
> > home at Murtoa was replaced by a colour light signal, as an intrim the
"A"
> > light was used for the mainline departure and the "C" light was used to
> > access Marmalake Siding from the mainlaine , this came out as a Special
> > Instruction also.
> >
> > The first use of the light dwarf (on same post as a home) with the
lettering
> > "SIDING" was the Portland one. (After Murtoa), then the Show Grounds,
with
> > the lettering "SIDING". What ever existed at the Show Grounds before I
can't
> > remember (may have been a mechanical Disc)? but it certainly was not the
> > current "SIDING" signal.
> >
> > Bob.
>