Reusing Signals

NW Mailing List nw-mailing-list at nwhs.org
Wed Jan 2 16:06:47 EST 2008


I recall seeing photos of these MASSIVE PL arrangements with three entire
targets on the bridge...is this what you are talking about?

Eric at CG Tower

On Jan 2, 2008 3:07 PM, NW Mailing List <nw-mailing-list at nwhs.org> wrote:


> In a message dated 1/1/2008 7:03:28 P.M. Eastern Standard Time,

> nw-mailing-list at nwhs.org writes:

>

> What were the full head signals

> all nine lights on one arm used for in Portsmouth and Roanoke?

>

> You may have reference to a hump signal. I'm not sure. There

> were provisions in the rule book effective 4/1/45 for half a dozen

> indications that were displayed on three targets (three lights per

> target). No rule number, but "Move Through Diverging Route at

> Restricted Speed" , for example, was:

> TOP TARGET - Three horizontal lights

> MIDDLE TARGET -Three horizontal lights

> BOTTOM TARGET - Three diagonal lights pointing toward the track.

>

> All other indications had the capability of being displayed using two

> targets. The 1951 rule book does not include three-target signals,

> so I guess by then the Operating Department had decapitated one

> of the signal heads. NOTE: on three-target signals requiring a positive

> stop, there would have been a 10th light mounted on the signal mast.

> Harry Bundy

>

>

>

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