dwarf CPL minutia

[NW Mailing List]

Jim,
     The old PL dwarf signals could display the following: Clear, 
Restricting, Stop and Flag (Number Plate) [This was at restricted speed 
protecting against trains approaching with the current of traffic.], 
Stop and Stay.

     The CPL dwarf signals (Rule book effective January 1, 1967) could 
display: Slow Clear, Slow Approach, Restricting, Stop and Proceed 
(Number Plate), Stop and Stay.

Hope this helps.

Jimmy Lisle

On 4/18/2024 1:22 AM, NW Mailing List wrote:
> All,
> It appears that when the change from PL to CPL was made ('64), there 
> were still 2 styles of US&S dwarf signals in use that were converted.  
> The older style had a curved right hand side, while the newer style 
> had a curved left hand side. The signal section of an NS employee 
> timetable from 1992 appears to indicate that the newer style dwarves 
> could display "stop", "restricting" , and "slow clear".  However, for 
> the older style, I can only find evidence for them being able to 
> display "stop" and "restricting".
> Can anyone corroborate, disprove, or generally comment on the above?  
> I would like very much to be able to pass on correct information to 
> someone who may be interested in producing these.
> Thanks,
> Jim Cochran
>
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