[PRCo] Re: Stumped
Jim Holland
PRCoPCC at P-R-Co.com
Sat Oct 27 20:45:22 EDT 2007
Thanks Herb!
What happened after passing the first Preliminary Contactor?
Herb Brannon wrote:
> >From the Signal Manual (1973 PATransit edition -- same as PRCo except
> for signal drawings rather than photos) :
>
> "At each end of the single track three contactors are installed on the
> trolley wire for the actuation of the signals as follows:
>
> (a) Two contactors are mounted on the trolley wire over the track by
> which cars enter the single track block. The first of theses
> contactors engaged as the car approaches single track is known as the
> Preliminary Contactor, and the second one, which is mounted about a
> car length beyond the first, is known as the Counting-In Contactor.
>
> (b) One contactor is mounted on the trolley wire over the track by
> which cars leave the single track block and it is known as the
> Counting-Out Contactor."
> Jim Holland <PRCoPCC at P-R-Co.com> wrote:
> Looking at the photo again.......
> .
> Very Short Siding??? Note the two contactors for the Nachods --
> presumably the one closest to us clears the single track behind~?~!~?
> Then we should see a contactor on the 1707 overhead heading into the
> single track but only the one to clear the single section behind is
> seen in the distance. Doesn't seem right -- contactor further back
> appears Waaayyy to close to the single track and TrolleyCar would be
> well on top of the points or front end at least beyond the track frog
> before activating.
>
>
>
>
> Edward H. Lybarger wrote:
>
> Maybe this should be our challenge for the event...figure out where it is!
>
>> -----Original Message-----
>>
>> From: Jim Holland
>>
>> This is a location that has stumped us in the past with a low-floor
>> in the scene instead~!~!~!~!
>> .
>> .
>> .
>> ^~^~^~^~^~^~^~^~^~^
>> .
>> Jim Holland
>> .
>> Studying Pittsburgh Railways Company (PRCo)
>> .
>> ..............................From 1930 -- 1950
>> .
>> Pennsylvania Trolley Museum (PTM)
>> .
>> http://www.pa-trolley.org/
>> .
>> N.M.R.A.
>> .
>> http://www.nmra.org/
>>
http://lists.dementia.org/files/pittsburgh-railways/PRC%20%201707.jpg
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