NYC Milford Junction - 1910?

rhensley_anderson Apr 18, 2020

  1. mmi16

    mmi16 TrainBoard Member

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    Throwing switches required one to 'explode' on the lever will all the strength and power one could muster. Switch locks and signal were easier to line but still required strength.

    In throwing switches not only does on have to get the pipeline moving, but the switch points in addition. A lot of steel to get moving.
     
  2. Dave1905

    Dave1905 TrainBoard Member

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    If you think about it, if a rail which is an I beam about 6 inches high and 5 inches wide made of thick steel can bend around a curve, why can't a 1" pipe?
     
  3. acptulsa

    acptulsa TrainBoard Member

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    No reason. Everyone's speculating about all the control links inside. A guy moves a lever here, hundreds of pounds of steel move over there. Your normal straight conduits house very solid rods. Does a curved one use links?

    Cable's possible. Cables work millions of bicycle brakes daily. They pull well, but if you want them to push, you have to put each of them in a tight tube all alone. Or, you put in a spring to pull it from the other end when the lever ratchet us released.
     
  4. Dave1905

    Dave1905 TrainBoard Member

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    At 90 degree bends they use lever arms. The rods ride on rollers. If you look at second picture, in the lower right corner you can see the levers to turn the rodding 90 degr to go parallel with the tracks. In the picture with the interurban you can see the roller supports every 6-8 feet.
     
  5. acptulsa

    acptulsa TrainBoard Member

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    I can't think of anything that would work better.
     
    Doug Gosha likes this.
  6. mmi16

    mmi16 TrainBoard Member

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    With a rail - it gets fixed in place and is not intended to move fore and aft, just because a user wants it to.

    The pipeline being used in a manual interlocking is connected to a lever in the operators location and some form of signal device, track switch or switch lock that must move as ordered by the movement of the lever and its associated pipeline. Hundreds, if not thousands of pounds steel must be moved when the lever is moved from one position to the other. While curved pipeline, with appropriate lateral and vertical controls will transmit the motion - the lateral and vertical controls will add resistance and increase the force necessary for the pipeline to do its job.
     
    Doug Gosha likes this.
  7. Doug Gosha

    Doug Gosha TrainBoard Member

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    Samantha or Jeannie.

    :D

    Doug
     
    BNSF FAN likes this.

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