Re: Riggs Creek Smash (language warning)

["Tezza" <tezza2000@dingoblue.net.au>]

"Tony Gatt" <baulko@tig.com.au> wrote in message
news:8vetim$mmi$1@bugstomper.ihug.com.au...
> Mark
> >
> > Annett locks are not unsafe, they have been used on Victorian mainlines
> for about 100 years. The way the Annett lock was used at Ararat was the
> problem
>
> Annett Keys were generally attached to a frame from memory, and if the key
> was removed then all signals controlling movement throught the annett locked
> area were secured at stop by the mechanical interlocking of the frame, if
> not on a frame, a circuit controller that secured the signals at stop when
> the key was released.
>
> Dunno why they bother with Annett Keys when they secure them behind padlocks
> anyways, they could cut out the middle man and lock the points with a
> padlock. Either way they are allowing every man and his dog to use them.
>
> Now, if it were master key attached to the staff, then that would be safe I
> suppose...

IIRC, Annett Keys in NSW are controlled by drawer locks operated by miniature
electric staffs, totally safe.