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.
1932 1
1932 index
4.7 MB
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accident 2
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A Detector Bar Fails
1.5 MB
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Now That It Has Happened
1.0 MB
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Akron, Canton & Youngstown 1
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Automatic Plant With Derails
2.4 MB
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Argentina 1
Arlington, OH 1
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Automatic Plant With Derails
2.4 MB
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Atchison, Topeka & Santa Fe 1
automatic block signaling 1
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Reverting to Single Track
646.7 KB
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automatic interlocking 2
Baltimore & Ohio 3
Baltimore & Ohio Chicago Terminal 1
Barrington, IL 1
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Collision in Signal Territory
513.9 KB
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Blue Island, IL 1
Boston & Maine 1
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Track Model Lights
444.9 KB
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Buenos Aires Great Southern 1
Buenos Aires, Argentina 1
Canadian National 1
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Track Model Lights
444.9 KB
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Central of Georgia 1
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CTC Studies
977.5 KB
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centralized traffic control 2
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Centralized Traffic Control
3.1 MB
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Reverting to Single Track
646.7 KB
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Chesapeake & Ohio 2
Chester, VA 1
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An Early Automatic Interlocking
411.4 KB
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Chicago & North Western 3
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Automatic Interlocking Replaces Mechanical Plant
1.7 MB
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Collision in Signal Territory
513.9 KB
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Smashboard Mechanisms
1.7 MB
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Chicago Great Western 2
Chicago Heights, IL 1
Chicago Union Station 2
Chicago, Burlington & Quincy 3
Chicago, IL 4
Chicago, Indianapolis & Louisville 1
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A Detector Bar Fails
1.5 MB
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Chicago, Milwaukee, St. Paul & Pacific 4
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B&OCT Stops Theft of Coal with Four Automatic Plants at Chicago Heights, IL
1.9 MB
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Crossing Problem
2.6 MB
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Location of Home Signals
853.4 KB
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Reverting to Single Track
646.7 KB
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Chicago, Rock Island & Pacific 5
Chicago, St. Paul, Minneapolis & Omaha 1
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Smashboard Mechanisms
1.7 MB
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Cleveland, Cincinnati, Chicago & St. Louis 4
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A Detector Bar Fails
1.5 MB
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Big Four Uses Centralized Control For Remote Interlocking
1.8 MB
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Improper Forestalling
669.7 KB
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Track Capacity
402.2 KB
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De Graff, OH 1
Delaware & Hudson 1
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CTC Studies
977.5 KB
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Denver & Rio Grande Western 2
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D&RGW Completes the Signaling of Its Main Line
2.6 MB
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Track Capacity
2.7 MB
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Des Moines, IA 1
Deshler, OH 1
detector bars 2
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A Detector Bar Fails
1.5 MB
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Detector Bars in 1932
419.4 KB
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Detroit, Toledo & Ironton 1
economics 1
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Reverting to Single Track
646.7 KB
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electro-pneumatic interlocking 1
Elkhart, IN 1
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Improper Forestalling
669.7 KB
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Erie 1
Florida East Coast 2
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Crossing Problem
2.6 MB
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False Change of Lineup
850.0 KB
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Galesburg, IL 1
General Railway Signal 1
Gilkeson, WV 1
Graham (Galesburg, IL) 1
Great Northern 3
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Automatic Interlocking Protects End of Double Track
2.7 MB
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Location of Home Signals
853.4 KB
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Smashboard Mechanisms
1.7 MB
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Griffith, IN 1
Hammond, IN 1
Highlands, IN 1
highway crossings 2
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Crossing Signal History
941.6 KB
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Uniform Laws and Standards for Crossing Signals
518.8 KB
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Holliday, KS 1
Illinois Central 2
index 1
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1932 index
4.7 MB
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Indianapolis, IN 2
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A Detector Bar Fails
1.5 MB
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Detector Bars in 1932
419.4 KB
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insulators 1
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Insulators
371.1 KB
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interlocking 4
Interstate Commerce Commission 1
Leipsic, OH 2
Lohman, MT 1
London & North Western 1
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Speed Signaling in England
1.9 MB
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Louisville & Nashville 1
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Crossing Problem
2.6 MB
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miniature signal system 1
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Miniature Signal System a Hobby
606.4 KB
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Minneapolis & St. Louis 1
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Smashboard Mechanisms
1.7 MB
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Mirfield, England 1
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Speed Signaling in England
1.9 MB
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Missouri Pacific 2
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Smashboard Mechanisms
1.7 MB
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Testing OS Track Circuits
926.0 KB
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model railroad 1
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Miniature Signal System a Hobby
606.4 KB
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Monon 1
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A Detector Bar Fails
1.5 MB
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Nashville, Chattanooga & St. Louis 1
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Track Capacity
2.7 MB
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New York Central 6
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Automatic Plant With Derails
2.4 MB
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Improper Forestalling
669.7 KB
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New Type of Lead-Out
924.4 KB
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The Light-Traffic Crossing
1.1 MB
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Track Capacity
2.7 MB
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Track Model Lights
444.9 KB
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New York, Chicago & St. Louis 4
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A Detector Bar Fails
1.5 MB
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Approach Lighting
534.4 KB
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Electric Interlocking Constructed by the Nickel Plate
1.4 MB
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Electric Lock for Spring Switch
1.3 MB
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New York, New Haven & Hartford 1
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Crossing Signal History
941.6 KB
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New York, NY 1
North Lima, OH 1
Olathe, KS 1
Oregon-Washington Railroad & Navigation 1
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Automatic Interlockers
1.0 MB
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Polo, MO 2
Porter, IN 1
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New Type of Lead-Out
924.4 KB
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Randolph Street (Chicago, IL) 1
Roachton, OH 1
Rochester, MN 1
Seaboard Air Line 1
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Take-Siding Signals
318.1 KB
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Southern 1
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Crossing Problem
2.6 MB
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Southern Pacific 3
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Centralized Traffic Control
3.1 MB
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Testing OS Track Circuits
926.0 KB
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Track Capacity
2.7 MB
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St. Charles Air Line 1
St. Louis-San Francisco 2
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Electric Lock on Spring Switch
399.3 KB
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False Change of Lineup
850.0 KB
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Tidewater & Western 1
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An Early Automatic Interlocking
411.4 KB
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Tontogany, OH 1
Trenton, MO 1
Union Avenue, Chicago, IL 1
Union Switch & Signal 2
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Centralized Traffic Control
3.1 MB
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Union Retained-Neutral Polarized Relay
471.0 KB
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Vermilion, OH 1
Virginian 1
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An Early Automatic Interlocking
411.4 KB
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Wabash 1
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Track Capacity
2.7 MB
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Walthers, W. K. 1
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Miniature Signal System a Hobby
606.4 KB
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