Dwarf Signals
 
Dwarf signals were most commonly used in terminals and other areas where multiple tracks were close together. If a bridge, cantilever or bracket post arrangement would not work, or, the track was in a low speed area, a dwarf signal could be used.

The N&W used two styles of dwarf signals, identical to the Pennsylvania Railroad dwarf signals, US&S had no formal designation only that they were called "old" and "new" style position light dwarf signals.

The addition of color lenses to both high signals (masts, bracket posts, etc...) and dwarf signals began in September of 1964, creating a hybrid signaling system.

Photos by E.E. Davis unless noted.
       
"Old" style US&S PL4
position light dwarf signal at
 Portsmouth, Ohio.
J.E. Landrum photo.

Front view of a "new style" PL4, note no access doors on the sides.

Larry Evans photo.
Rear view...access is through the back panel.

Larry Evans photo.

Another "old" style PL4, also notice the signal sits closer to the foundation as the cable goes out the back.
Larry Evans photo.
Rear view. Cable exits through back panel.

Larry Evans photo.

New style with all indications.
Larry Evans photo.
Side view...notice how the back panel can be removed.

Larry Evans photo.

    
       
       
  .  
       
       
 

Back to Photo Index

Home
 

Updated: July 23, 2008