RAILROAD SIGNALS of the U.S.

US&S SEMAPHORES
MECHANICAL DRAWINGS

The following drawings are from a 1911 US&S Automatic catalogue.  This catalog was in the standard book type format, just before they went to a multi-section, multi-book replaceable page format.  I will post more scans as time permits.

 
A model "S" semaphore mounted atop equipment cabinets.

     
A model "T-2" semaphore, pole mounted.

   
The two styles of equipment cases, one for relays only, the other for relays and batteries.

 
Various combinations with height measurements.

       
Blade information.

   
Roundel information.