One unique feature of the B&O inspired color position light signals, are the CPL dwarf signals. Essentially miniatures of the standard mast signal, CPL dwarf signals showed the same indications, requiring crews to remember fewer signal indications. Diagrams are Adobe PDF files. Need Acrobat Reader? Click here.

 

Signal Bridge Diagrams
From the B&O Signal Standards book.

Union Switch and Signal Catalog

General Railway Signal Catalog

Signal Bridge Photos
 

Back to Technical Page
 

Back to Main Index
 
Best Viewed in 1024 x 768 ,  Copyright 2005.
This site is for educational use only and is not affiliated with any railroad or signal manufacturer.
Updated: February 05, 2007