NOTE:
Although all of these digitized articles are 60 or more years old, and likely have minimal commercial value today, the reader should bear in mind that material dated after 1923 remains under copyright by Simmons-Boardman Publishing.
These articles and the information contained therein may be freely reproduced or used in printed or electronic form for non-commercial or educational purposes, provided the copyright holder and original author (if known) are acknowledged, and provided that such publication also refers readers to the original document on this site.
Simply making interesting material available to those who share my interest in the railway signal systems of the past has been my sole objective in this long project.
approach lighting 1
Ashland, KY 1
Atchison, Topeka & Santa Fe 5
Atlantic Coast Line 1
| Checking Up on Signal Observance 774.5 KB |
automatic interlocking 1
automatic train stop 1
Baltimore & Ohio 3
Bayonne, NJ 1
Berwick, OH 1
Bimo, MI 1
| Half Interlocker on DT&I 565.6 KB |
Blue Island, IL 1
Buffalo, NY 1
call-on signals 1
Canadian National 3
Canadian Pacific 3
Central of Georgia 2
Central of New Jersey 1
centralized traffic control 1
Chesapeake & Ohio 7
Chicago & Eastern Illinois 1
Chicago & North Western 3
Chicago Great Western 1
| Checking Up on Signal Observance 774.5 KB |
Chicago South Shore & South Bend 1
Chicago, Burlington & Quincy 1
Chicago, IL 1
Chicago, Indianapolis & Louisville 1
| Miller Train Control On the Monon 582.2 KB |
Chicago, Milwaukee & St. Paul 2
Chicago, Rock Island & Pacific 1
Chillicothe, IL 1
Cincinnati, New Orleans & Texas Pacific 1
| Protecting Main Line Switches 486.2 KB |
circuits 1
Cleveland, Cincinnati, Chicago & St. Louis 3
color position light signals 1
De Kalb, IL 1
Delaware & Hudson 3
Delaware, Lackawanna & Western 1
Denver & Rio Grande Western 1
Detroit, Toledo & Ironton 1
| Half Interlocker on DT&I 565.6 KB |
Dryden, G. H. 1
electric interlocking 1
Elgin, IL 1
Elizabethport, NJ 1
Erie 5
Eureka, MO 1
Florida East Coast 1
Fostoria, OH 1
Ft. Madison, IA 2
General Railway Signal 4
Grand Central Terminal, New York, NY 1
Grand Trunk Western 1
Great Northern 1
Green Island, IA 1
Griswold Signal 1
Hamilton Jct., Ontario 1
Hammond, IN 1
| Miller Train Control On the Monon 582.2 KB |
highway crossings 2
Illinois Central 4
Indiana Harbor Belt 1
interlocking 1
Interstate Commerce Commission 1
Jackson, MI 1
Jefferson City, MO 1
Kensington, IL 1
lamps 1
Lennoxville, Quebec 1
Louisville & Nashville 1
Michigan Central 2
Michigan City, IN 1
Missouri Pacific 3
Missouri-Kansas-Texas 2
Monon 1
| Miller Train Control On the Monon 582.2 KB |
Monon, IN 1
| Miller Train Control On the Monon 582.2 KB |
Nashville, Chattanooga & St. Louis 5
New York Central 11
New York, New Haven & Hartford 1
| How Long Is a Track Circuit? 593.6 KB |
New York, NY 1
Newhall, IA 1
Niles, MI 1
Norfolk & Western 3
Northern Pacific 2
Panama 1
Pennsylvania 5
Pequot, IL 1
poem 1
Richton, IL 1
Rochester, NY 1
rotating stop signs 1
Russell, KY 1
Sabula, IA 1
Savanna, IL 1
Schwendt, B. J. 1
Seaboard Air Line 1
| Signaling Special Layouts 4.1 MB |