End of the year quiz #3

[NW Mailing List]

Jim – the only question I can answer is that those aspects weren’t in the ETTs.  I never worked with them, not running trimmer engines . . .

EdK

From: NW Mailing List 
Sent: Monday, December 22, 2014 9:44 AM
To: NW Mailing List 
Subject: Re: End of the year quiz #3

Ed,
Thanks for your description.  I found a patent on line that talks about controlling hump yard movements with a hump signal and a trimmer signal.  I didn't study it in detail, but it appeared to be a method "interlocking" between a loco working the hump and one working the classification tracks so that when one was moving the other would be stopped.  In this particular example, is sounded as if there could be several aspects for these signals including a couple of proceeds, a back up and stop.  Were the aspects for N&W trimmers shown in the ETTs?
Were they available in some other documents?  Do you know what that horizontal plus backslash aspect in the photo indicated?  Did all N&W hump yards employ trimmer signal?  How about hump signals?  Is that enough questions for one note?
Thanks again,
Jim Cochran

On Fri, Dec 19, 2014 at 1:06 PM, NW Mailing List <nw-mailing-list at nwhs.org> wrote:

  Trimmer signals were found in big yards where engines handled long cuts of cars and got out of sight of crewmen on the ground who would be handling switches and cutting cars.  The YM or Conductor would, using the trimmer signal which was in sight of the engineer, tell him when to back up, stop, come forward, etc.  Part of the problem at Portsmouth was that darn viaduct shown in the photo; it was difficult to see when working the west end of the eastbound yard or the westbound coal departure yard.  Thus, the “trimmer’ signal.

  Edk

  From: NW Mailing List 
  Sent: Friday, December 19, 2014 12:41 PM
  To: NW Mailing List 
  Subject: Re: End of the year quiz #3

  OK Ed, I'll bite.  What's a "trimmer signal"? 
  Jim Cochran

  On Thu, Dec 18, 2014 at 5:15 PM, NW Mailing List <nw-mailing-list at nwhs.org> wrote:

    Seven looks like looking west at Vera, O.  Eight is at Portsmouth, and the funky signal is a trimmer signal for switch engines,  I dunno ‘bout 9.

    EdKing

    From: NW Mailing List 
    Sent: Thursday, December 18, 2014 2:17 PM
    To: NW Mailing List 
    Subject: RE: End of the year quiz #3

    P8 sure looks like the viaduct near our old home in Portsmouth, Ohio. We played around the side tracks, old passenger cars and thought we were railroad men. My dad, a US Railway Mail Clerk, would have “killed” us if he had only known. You often wonder how did we survive the crazy things we did. 



    From: NW-Mailing-List [mailto:nw-mailing-list-bounces at nwhs.org] On Behalf Of NW Mailing List
    Sent: Thursday, December 18, 2014 12:45 PM
    To: NW Mailing List
    Subject: End of the year quiz #3



    Thanks for the responses to quiz #2.  Here are the next 3 shots:



    p7.  Another elevated electrical case, but appears to be more in the hills than along the flood plain of a river.



    p8.  I think this might be Portsmouth O., but take a look at that signal.  Is it broke?  Is this a one-arm version of "restricting"?



    p9.  Sort of industrial area/yardish looking.



    Thanks,

    Jim Cochran


    Moderator:
     http://nwhs.org/mailinglist/2014/20141218.p7.jpg
     http://nwhs.org/mailinglist/2014/20141218.p8.jpg
     http://nwhs.org/mailinglist/2014/20141218.p9.jpg




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