[PRCo] Re: Real Tales--No. 1/Unscheduled Meet

jbh at p-r-co.com jbh at p-r-co.com
Mon Sep 11 02:20:43 EDT 2006


> hrbran99 at adelphia.net writes:

> .......The signal systems in use back then were certainly products of the 'industrial' age.   Even in 1979 when I would look at the signals and the associated hardware that went with them they seemed very 'old fashioned' to me.   I remember some of them even had large storage batteries in their bases.   I always wondered what would happen if several batteries went dead at the same time!
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Forgot to mention Two Things:::
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01.>--__When you responded to the list message, the header indicates an 
email address  TO: The List and CC: fws3  --  your computer is getting very 
consistent! I still get double emails from you when you reply to one of my 
messages onlist  --  not a complaint, Herb  --  just observation!
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02.>--__The US&S signalling was set up for fail safe.  Relays Are Activated 
 - powered - to set the Green light - wheels across the track short out this 
circuit so the relays drop out to produce the Red Board.  Should the battery 
system fail, all green lights would go to red and then the rule book needs 
to be consulted on how to proceed.  Lights *_Possibly_* energized from the 
600 overhead but certainly by a power source separate from the battery 
system.  Was the battery system 40-volts?  Don't know why that figger sticks 
in my mind  --  seems an odd value but then the 32-volt batteries on PCCs is 
not exactly common!!
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The battery system used fo the US&S signals was only 3.5 times that of the 
voltage to control model TrolleyCars-_-I-F the 40-volt figger is correct.
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Believe US&S installed the signals on PRCo in the very late 1920s or very 
early 1930s.
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Jim__Holland
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I....Like....IKE__---__And....PCCs!
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down...with...pantographs.......
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UP___WITH___TROLLEYPOLES!!!



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