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.
40-hour week 1
"FG", Louisville, KY 1
"HX" Tower, Hackensack, NJ 1
AAR Signal Section 1
absolute permissive block signaling 1
Afton, OK 1
all-relay interlocking 5
Allerton, MO 1
Arcadia, OH 1
Atchison, Topeka & Santa Fe 1
Atkinson, IL 1
Atlantic Coast Line 2
automatic block signaling 8
automatic block signals 2
automatic interlocking 1
An Unusual Automatic Plant
4.5 MB
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automatic train control 2
automatic train stop 2
Baltimore & Ohio 1
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Varied Light Intensity
921.0 KB
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Battle Creek, MI 1
Bell Laboratories 1
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The Transistor
3.1 MB
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Benz, TX 1
Bethard, TX 1
Big Sandy Jct., KY 1
Blue Island, IL 1
Bonsack, VA 1
bridges 1
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Insulation of Rails
874.8 KB
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Broadway Tower, Kansas City, MO 1
Brooklyn, NY 1
Buffalo, NY 1
Bureau, IL 1
cab signaling 2
cab signals 1
Caldwell, KS 1
Caliente, CA 1
Canadian Pacific 1
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A Mile-Stone In Signaling
1.2 MB
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car retarders 1
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A Mile-Stone In Signaling
1.2 MB
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carrier control 1
centralized traffic control 12
Chattanooga Terminal 1
Chattanooga, TN 1
Chesapeake & Ohio 4
Chicago & Illinois Midland 1
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Insulation of Rails
874.8 KB
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Chicago South Shore & South Bend 1
Chicago, Burlington & Quincy 1
Chicago, IL 1
Chicago, Milwaukee, St. Paul & Pacific 1
Chicago, Rock Island & Pacific 2
circuits 1
Claus, W. H. 1
Cleveland, OH 1
coded track circuits 4
color light signals 1
color specifications 1
communication trouble 1
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Communications Trouble
2.0 MB
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Corning Glass Works 1
Crestwood, NY 1
crossing indicators 1
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Crossing Protection
1.1 MB
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Dallas, TX 1
Denison, TX 1
Denver & Rio Grande Western 1
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An Unusual Automatic Plant
4.5 MB
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Dr. William Churchill 1
dragging equipment detectors 1
East New York, NY 1
East Tulsa, OK 1
El Reno, OK 1
electric lock switches 2
Elgin, Joliet & Eastern 1
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Loudspeakers on the "J"
7.9 MB
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Elkhorn City, KY 1
Erie 1
Euclid Avenue, New York, NY 1
flashing aspects 1
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Varied Light Intensity
921.0 KB
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flashing red aspect 1
flood detectors 1
Fox Lake, IL 1
Freiberger, A. A. 1
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A. A. Freiberger
827.1 KB
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Fulton Street extension, New York, NY 1
General Railway Signal 7
Gibson, IN 1
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A Mile-Stone In Signaling
1.2 MB
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grade time signals 1
Grand Rapids, MI 1
Grand Trunk Western 1
guides for success 1
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Yardsticks
2.0 MB
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H-5 searchlight signals 1
Hackensack, NJ 1
Herington, KS 1
highway crossings 5
holding signals 2
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Hold-Out Signals in CTC
1.0 MB
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New Interlocking in Louisville
5.3 MB
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Illinois Central 3
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A Mile-Stone In Signaling
1.2 MB
|
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A. A. Freiberger
827.1 KB
|
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Controlled Overlaps for Single-Track APB Signaling
1.5 MB
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Indiana Harbor Belt 1
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A Mile-Stone In Signaling
1.2 MB
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insulated joints 1
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Insulation of Rails
874.8 KB
|
interlocking 9
Interstate Commerce Commission 3
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Applications to ICC 1949-11
926.1 KB
|
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ICC Issues Statistics
850.7 KB
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Santa Fe Gets Some Relief from ICC Signaling Order
2.2 MB
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Jacksonville Terminal 1
Jacksonville, FL 1
Janesville, WI 1
Jersey City, NJ 1
Joliet, IL 2
Kansas City, MO 2
Kensington, IL 1
Kentucky & Indiana Terminal 1
laboratory 1
Lamar, MI 1
Lehi, Utah 1
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An Unusual Automatic Plant
4.5 MB
|
Longview, TX 1
Louisville, KY 1
lunar white 2
manual block signaling 2
Markham Yard, IL 1
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A Mile-Stone In Signaling
1.2 MB
|
Maryland & Pennsylvania 1
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Varied Light Intensity
921.0 KB
|
Midvale, UT 1
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An Unusual Automatic Plant
4.5 MB
|
Minneapolis, St. Paul & Sault Ste. Marie 1
Missouri Pacific 2
Missouri-Kansas-Texas 1
Montreal, Quebec 1
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A Mile-Stone In Signaling
1.2 MB
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Montvale, VA 1
moose 1
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Communications Trouble
2.0 MB
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Morris, IL 1
motor car indicators 4
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625 Miles of CTC in one Stretch
7.9 MB
|
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New Automatic Block on the Katy
4.7 MB
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Signaling Saves Time on Frisco
4.8 MB
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Train Indicator for Motor Car
1.0 MB
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movable bridges 1
Muscatine, IA 1
New York Board of Transportation 1
New York Central 3
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Main Line Crossovers
2.4 MB
|
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New York Central Installs Interlocking
3.3 MB
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Raising Poles
1.9 MB
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New York, Chicago & St. Louis 1
New York, NY 1
Norfolk & Western 4
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Applications to ICC 1949-11
926.1 KB
|
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Crossing Protection
1.1 MB
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Either-Direction Running on Two Tracks on the Norfolk & Western
5.5 MB
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Hold-Out Signals in CTC
1.0 MB
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NX interlocking 3
obituary 1
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A. H. Rudd obituary
947.2 KB
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Pennsylvania 2
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A. H. Rudd obituary
947.2 KB
|
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Main Line Crossovers
2.4 MB
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Pere Marquette 2
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Hold-Out Signals in CTC
1.0 MB
|
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Modern Signaling on a Division
6.6 MB
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personal 2
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A. A. Freiberger
827.1 KB
|
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A. H. Rudd obituary
947.2 KB
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Pitkin Avenue Yard, New York, NY 1
plug-in relays 1
Polo, MO 1
Porter, IN 1
promotion 1
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A. A. Freiberger
827.1 KB
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Provo, UT 1
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An Unusual Automatic Plant
4.5 MB
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purple 1
radio 1
railroad radio 1
Railway Signal Association 1
return on investment 1
Rochester, NY 1
Rock Island, IL 1
rock slide fences 1
Rondout, IL 1
route interlocking 1
Rudd, A. H. 1
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A. H. Rudd obituary
947.2 KB
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Salt Lake City, UT 1
San Marcos, TX 1
Santa Fe Street, Kansas City, MO 1
searchlight signals 2
signal aspects 3
signal colors 1
signal glass 1
signal lenses 1
Silvis, IL 1
Soo Line 1
South Bend, IN 1
Southern 1
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Applications to ICC 1949-11
926.1 KB
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speed checker 1
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Yardsticks
947.2 KB
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Spencer, WI 1
spring switches 1
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ICC Issues Statistics
850.7 KB
|
Spring Valley, IL 1
St. Joseph, MI 1
St. Louis-San Francisco 1
station time signals 1
switch machines 1
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Main Line Crossovers
2.4 MB
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tail track signals 1
telephone poles 1
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Raising Poles
1.9 MB
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Texas & Pacific 1
time element relays 1
Topeka, KS 1
track circuits 2
transistors 1
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The Transistor
3.1 MB
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Troost Avenue, Kansas City, MO 1
Union 1
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Insulation of Rails
874.8 KB
|
Union Pacific 3
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625 Miles of CTC in one Stretch
7.9 MB
|
|
An Unusual Automatic Plant
4.5 MB
|
|
Applications to ICC 1949-11
926.1 KB
|
Union Switch & Signal 1
Villamont, VA 1
Virginia Avenue, Louisville, KY 1
Wabash 2
Walworth, WI 1
Waukesha, WI 1
Wichita, KS 1
yard intercom 1
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Loudspeakers on the "J"
7.9 MB
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