Hi Noel and others
Please see attach plan for question 5, the system run on 120 v AC power supply
from the Ballow Street sub station. Over the next month I will follow up on the
other questions
http://tdu.to/JunctionWickhamandBrunswichStsTracklayout.jpg
http://tdu.to/Signa CabinValleyWiringDigram120VoltsAC.jpg
Glen Dyer
In Very wet Brisbane
________________________________
From: Noel Reed noelreed10@...>
To:TramsDownUnder@...
Sent: Sat, 11 December, 2010 10:59:25 PM
Subject: RE: [TramsDownUnder] Valley Signal Cabin, Excuse the cobwebs
Hell Ken, Bob and others,
I have been very interested to hear about the Brisbane tramway signal box at
Valley Junction and to compare it with the Sydney tramway hydraulic points
installations. I would be very interested to obtain further information such as
the old 'blueprint' diagram which you have mentioned. Many details of the
operation of hydraulic points on the former Sydney tramways were explained in
the Tramway Working Orders book. I can answer any relevant queries as far as my
direct involvement is concerned.
I have several questions about the Brisbane tramway hydraulic points --
1. Did the Brisbane points mechanisms use moving cylinders and fixed pistons as
in Sydney ?
2. Was there an indication to the signalman that the hydraulic points had
correctly responded to a lever movement ?
3. Was there provision for operating the points if town water pressure failed.
?
4. Could points be operated without clearing a signal ? (As for a wrong
direction or "bang road" movement in emergency)?
5. Were the signal lights powered from the tramway 600 volt DC or from separate
AC supply.
6.. Were there repeater lights in the signal box to show and prove the
indications of the signals ?
7 Did the Petrie Bight, Wharf St and Woolloongabba tramway signal boxes use the
same hydraulic points system?
Concerning Q4. There were several English signalling installations using 'route
levers' which set points as well as clearing the relevant signals. This system
was easy to learn by comparison with the use of individual point and signal
levers. The English installations had additional small slide levers to work
points alone when necessary for emergency or testing purposes.
Noel Reed. Always ready to learn and share news on signalling systems
________________________________
From:[email protected] [mailto:TramsDownUnder@... ] On
Behalf Of Ken Howard
Sent: Saturday, 11 December 2010 7:22 AM
To:TramsDownUnder@...
Subject: Re: [TramsDownUnder] Valley Signal Cabin, Excuse the cobwebs
Bob
Glen may may be able to help you with the other cabins.
There is a blueprint behind glass on the wall above the leaver frame
which would have been the one in use in 1969. It is the same as the one
Glen posted except that it has the actual wiring of the frame and
signals and also the interlocking of the leavers is shown.
I didn't post it here as it is very faded and needs the full 2.6M file
size to be able to read it. If you are still interested I can email it
to you direct.
Ken Howard
On 10/12/2010 12:21 PM, Bob Pearce wrote:
>
>
> Hi all,
>
> Thanks for the diagram and pics of the signal box at Valley.
>
> Like Noel Reed , I am also interested in tramway signalling and controls
> (never had them in Perth at junctions), and note that the frame now has
> two spaces which seem to indicate that some modifications were done
> somewhere between 1927 and when the box was taken out of use.
>
> Are there later diagrams for this box; and are there diagrams of the
> other boxes in use in Brisbane ?
>
> Are there (official) photos taken of the various boxes that might show
> where (now) missing gauges and other equipment used to be?
>
> Cheers
>
> Bob in Perth