RR Signals

slimjim Oct 9, 2001

  1. signalguy

    signalguy Passed away December 19, 2004 In Memoriam

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    The switch machine looks just like a GRS Model 5A 110 volt DC machine with dynamic snubbing and indication. Could be under license or a good copy.
    Sorry about the third but I should have noticed the top yellow was the bottom light where the red is normally.
    In 93 your RR was working on a color unit using LED's but were having trouble getting a good green. Did they suceed? Safetran has an LED unit now and there are companies putting out LED highway traffic signals
     
  2. Colonel

    Colonel Staff Member TrainBoard Supporter

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    Yes Gil our Standard for all signals is now LED. In my area we have 102 signals that are now LED. I am currently replacing 60 gantry signals with LED.

    We are also trialling a tri colour LED that displays Red, Yellow and Green in the one aspect. It was actually developed as a LED replacement for a search light signal. We are placing one aspect over the other to give a double aspect indication.
     
  3. John Whitby

    John Whitby E-Mail Bounces

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    Martyn,
    In the absence of any other answers I reckon that the assemblies in your photos are the arming and trigger loops of a TPWS (Train Protection and Warning System) "overspeed sensor". These are used together with "train stop sensors" in the safety system that is currently being fitted in the U.K.
    Incidentally, where did you take the photos ? The track is even worse than that in the Colonels pics. :D :D
    John

    [ 24. October 2002, 17:12: Message edited by: John Whitby ]
     
  4. signalguy

    signalguy Passed away December 19, 2004 In Memoriam

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    This sounds similar to the unilense type signal where 3 or 4 bulbs are used behind color discs into a fiber optics pipe that ends behind the lense. Each bulb gives you a different color through the same lense.
     
  5. Peirce

    Peirce Passed away April 3, 2009 In Memoriam

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    If I remember correctly, I found this one last year in the 30th Street Station, Philadelphia.

    [​IMG]
     
  6. signalguy

    signalguy Passed away December 19, 2004 In Memoriam

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    This is a former PRR position light dwarf signal. The original style had a center lense that was removed when they changed the stop aspect (shown) to red lenses. All the other lenses are clear or white. This type signal simulates the semaphore signal aspects where stop is horizontal, approach or Yellow is a 45 degree to the right and clear or green is vertical. The 45 degree to the left is the restricting aspect.
     
  7. Martyn Read

    Martyn Read TrainBoard Supporter

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    This is a rather wonderful old signal still standing at Barnetby, nice mix of lattice and wood construction for the posts. [​IMG]

    [​IMG]

    Somewhat more usual is this two aspect colour light with route indicator at Crediton, Devon. It's controlled from the signal box in the background, which also controls the road crossing.

    [​IMG]

    Birmingham New St station has an interesting set of circumstances, a rather low roof, narrow platforms and a need for trains to share platforms, these mid-platform signals unusually have the 3-aspect head mounted horizontally, to allow viewing above people on the platform and below the line of the roof.

    [​IMG]

    BTW, my old links are updated again.... [​IMG]
     
  8. Peirce

    Peirce Passed away April 3, 2009 In Memoriam

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    There never seems to be an end to the variety of signaling methods and equipment. Thanks, Gil for the explaination of the one in my last post.

    Martyn, Thanks for adding to the variety. That last one looks like it was borrowed from a street traffic light. Also, thanks for fixing your links.
     
  9. Alan

    Alan Staff Member TrainBoard Supporter

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    Good pics Martyn. There are still semaphore signals not far from here, so I should get out and photograph them whilst I am able.

    Must see if I can dig out some black and white pics of GN somersault signals I took about 40 years ago!
     
  10. signalguy

    signalguy Passed away December 19, 2004 In Memoriam

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    This isn't a very good photo but it was taken on Paul's railroad in NSW. Notice the trip stop for the automatic train stop in the foreground on the left hand rail. Paul should be able to tell the location of the photo.
    [​IMG]
     
  11. signalguy

    signalguy Passed away December 19, 2004 In Memoriam

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    This color light signal has the three colors in an inverted pattern with red at the bottom and green and yellow above. The second photo shows the base of the signal and the foundation and ladder base. Many railroads changed from concrete foundations to this type which can be used for signals and crossing gates.
    [​IMG]
    [​IMG]
     
  12. Colonel

    Colonel Staff Member TrainBoard Supporter

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    wow I was there today, the place you show is Glenfield which is part of my area. The area has changed significantly since Gil was there.

    There is now a terminal road to the left then a loop for freaight traffic to the left of that. I will try and take a pic next time I'm there and post it here.
     
  13. signalguy

    signalguy Passed away December 19, 2004 In Memoriam

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    I knew where it was as I also have one of the station sign. I thought it was in your area from what you said in a previous post. A lot can change in 10 years.
     
  14. Colonel

    Colonel Staff Member TrainBoard Supporter

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    Here is a view of Glenfield from looking back toawrds where the first photograph was taken. As you can see the two tracks on the right do not exist on the left of the original photograph.

    [​IMG]
     
  15. signalguy

    signalguy Passed away December 19, 2004 In Memoriam

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    On the left I see a high speed crossover. Does it have movable point frogs or conventional frogs?
     
  16. Colonel

    Colonel Staff Member TrainBoard Supporter

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    You still have a good eye Gil, yes the high speed crossovers are moveable swingnose (Frogs) we use hydraulic pumps to operate rams to throw the swingnose. You can see on the far left one of the movable swngnose.
     
  17. Alan

    Alan Staff Member TrainBoard Supporter

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    I see that the right hand track is not electrified so is this just a siding? If so are all the freight trains which use it diesel hauled?
     
  18. Colonel

    Colonel Staff Member TrainBoard Supporter

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    Good observations Alan the right track is a 5 km freight loop where freight trains are put away to allow passenger movements. Our freight companies have stored away all electric locomotives and only use diesel now.

    The 5 km freight siding is about to become extended linking the south of Sydney with the main freight corridor which will allow through running without having to put freight trains away during peak hour for passenger services.
     
  19. Alan

    Alan Staff Member TrainBoard Supporter

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    Thanks Paul. Good to see a railway being extended to serve freight operation [​IMG]
     
  20. signalguy

    signalguy Passed away December 19, 2004 In Memoriam

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    Here is a Johnny Trains photo of a B&O signal. It is at the end of a siding with the main line signal on a bracket pole and the dwarf signal controlling movement from the siding to the main track is to the right of the bracket pole base. These are color position light signals.
    [​IMG]

    [ 20. March 2004, 17:05: Message edited by: signalguy ]
     

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