Position Light signalling

[NW Mailing List]

Hello Mr Englishman
There is a series of articles in the Keystone Modeller June 2006 onwards (available online) which describes the Pennsylvania signalling system and how to make signals.  As Pensy signals are virtually the same as N&W, I made my signals using help from this article, and info. from Jimmy Lisle.
Signal heads are made by Oregon Rail Supplies (need modifying) and Freestate system components supplied brass frets for other components. 
Regards
Richard Hood Dorset, England (NMRA British division member)

From: NW Mailing List 
Sent: Saturday, March 10, 2012 12:07 PM
To: nw-mailing-list at nwhs.org 
Subject: Re: Position Light signalling




        Lastly, I don't have an N&W rulebook from the 1940s-1959 so cannot comment on whether N&W used "route" signaling somtime in the 1940s-1950s. In route signaling, aspects conveyed a route - not a speed. The engineer was responsible for knowing the track area and the required speed. Where a "speed" signal approach aspect rule might show "slow to medium speed", the corresponding "route" aspect could indicate "prepare to take diverging route."  This would be a good question for the list. 
   
     One aspect conspicuously missing from the rule book issued 1/1/1967 is still in use.  When an unsignalled track intervenes between the signal and the track it governs, a low post on a bracket is mounted to identify that track.  Originally, these posts were illuminated with one light.  If more than one track intervened between the signal and the track it governed, more posts were added.  Today, the post(s) remain, but the light has been eliminated.  In SAL rule books, they're identified as "doll arms".                                                           Harry Bundy. 




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