Railway Signaling: 1911

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.

Learn more about this collection.

1911 1

1911	1911 index 1.1 MB

absolute permissive block signaling 2

1911	The Absolute Permissive System 6.7 MB
1911	The Absolute Permissive System 881.6 KB

American Railway Association 1

1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB

approach locking 1

1911	Summary of Recent Progress in Signaling 4.4 MB

aspects and indications 2

1911	A Summary of Signaling Practice 3.6 MB
1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB

Atchison, Topeka & Santa Fe 1

1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB

Aurora, IA 1

1911	Automatic Signals on the Chicago Great Western 7.4 MB

automatic block signaling 8

1911	Automatic Block Signal System for Electric Railways 4.9 MB
1911	Automatic Signals on the Chicago Great Western 7.4 MB
1911	Automatic Signals on the Northern Pacific 7.2 MB
1911	Automatic Signals on the Northern Pacific 6.3 MB
1911	Automatic Signals on Vermillion River Bridge 986.3 KB
1911	Interurban Block Signals 1.7 MB
1911	Signaling on the Illinois Traction System 1.5 MB
1911	Summary of Recent Progress in Signaling 4.4 MB

Balliet, H. S. 1

1911	New 400-Lever Interlocking Machine 3.7 MB

bill of material 1

1911	Standard Outline Bill of Mechanical Material 8.7 MB

Billings, MT 1

1911	Automatic Signals on the Northern Pacific 6.3 MB

block signaling 1

1911	Signaling Practice on Steam Railways 5.5 MB

Budd, IA 1

1911	Automatic Signals on the Chicago Great Western 7.4 MB

Buffalo, Rochester & Pittsburgh 1

1911	A Summary of Signaling Practice 3.6 MB

Canada 1

1911	A Comparison of the Interlocking Laws of the Various States 2.6 MB

Carlinville, IL 1

1911	Signaling on the Illinois Traction System 1.5 MB

Carpenter Street, Chicago, IL 2

1911	Interlocking on the North Western Terminal 7.6 MB
1911	Signaling and Interlocking on the North Western Terminal in Chicago 1.1 MB

Chicago & Eastern Illinois 1

1911	A Summary of Signaling Practice 3.6 MB

Chicago & North Western 5

1911	A Summary of Signaling Practice 3.6 MB
1911	General News (August 1911) 557.3 KB
1911	Interlocking on the North Western Terminal 7.6 MB
1911	Signaling and Interlocking on the North Western Terminal in Chicago 1.1 MB
1911	The Newest Terminal Interlocking 611.9 KB

Chicago Great Western 2

1911	A Summary of Signaling Practice 3.6 MB
1911	Automatic Signals on the Chicago Great Western 7.4 MB

Chicago, IL 3

1911	Interlocking on the North Western Terminal 7.6 MB
1911	Signaling and Interlocking on the North Western Terminal in Chicago 1.1 MB
1911	The Newest Terminal Interlocking 611.9 KB

Chicago, Indianapolis & Louisville 1

1911	A Summary of Signaling Practice 3.6 MB

Chicago, Milwaukee & St. Paul 3

1911	A Summary of Signaling Practice 3.6 MB
1911	Letters to the Editor: Uniform Signaling: A reply to Mr. Rudd 1.8 MB
1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB

Chicago, Rock Island & Pacific 3

1911	A Summary of Signaling Practice 3.6 MB
1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB
1911	Relay Shipping Case 1.1 MB

Cincinnati, Hamilton & Dayton 1

1911	A Summary of Signaling Practice 3.6 MB

circuits 1

1911	Symbols and Nomenclature for Written Circuits 2.3 MB

Clausen, L. R. 1

1911	Letters to the Editor: Uniform Signaling: A reply to Mr. Rudd 1.8 MB

Clinton Street, Chicago, IL 2

1911	Interlocking on the North Western Terminal 7.6 MB
1911	Signaling and Interlocking on the North Western Terminal in Chicago 1.1 MB

color light signals 1

1911	Signaling on the New York Tunnel Extension of the Pennsylvania 1.0 MB

compensators 1

1911	The Mechanics of the Compensator 1.8 MB

controlled manual block signaling 1

1911	Summary of Recent Progress in Signaling 4.4 MB

Danville, IL 2

1911	Automatic Signals on Vermillion River Bridge 986.3 KB
1911	Signaling on the Illinois Traction System 1.5 MB

Des Plaines Valley line 1

1911	General News (August 1911) 557.3 KB

Des Plaines, IL 1

1911	General News (August 1911) 557.3 KB

Detroit River tunnel 1

1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB

Division Street, Chicago, IL 2

1911	Interlocking on the North Western Terminal 7.6 MB
1911	Signaling and Interlocking on the North Western Terminal in Chicago 1.1 MB

Dryden, G. H. 1

1911	Letters to the Editor: A Difference of Opinion 739.6 KB

Dubuque, IA 1

1911	Automatic Signals on the Chicago Great Western 7.4 MB

Durango, IA 1

1911	Automatic Signals on the Chicago Great Western 7.4 MB

Effingham, IL 1

1911	General News (August 1911) 557.3 KB

electric interlocking 4

1911	Automatic Signals on the Northern Pacific 6.3 MB
1911	General News (August 1911) 557.3 KB
1911	New 400-Lever Interlocking Machine 3.7 MB
1911	Summary of Recent Progress in Signaling 4.4 MB

electric train staff 1

1911	The Staff System on the Southern Pacific 4.0 MB

electro-pneumatic interlocking 2

1911	Signaling on the New York Tunnel Extension of the Pennsylvania 1.0 MB
1911	Summary of Recent Progress in Signaling 4.4 MB

Elmhurst, IL 1

1911	Automatic Signals on the Chicago Great Western 7.4 MB

Fair Grounds, IA 1

1911	Automatic Signals on the Chicago Great Western 7.4 MB

Forest Park, IL 1

1911	Automatic Signals on the Chicago Great Western 7.4 MB

Garrison, MT 1

1911	Automatic Signals on the Northern Pacific 7.2 MB

General Electric 1

1911	Automatic Signals on the Chicago Great Western 7.4 MB

General Railway Signal 8

1911	Automatic Signals on the Northern Pacific 7.2 MB
1911	Automatic Signals on the Northern Pacific 6.3 MB
1911	Interlocking on the North Western Terminal 7.6 MB
1911	New 400-Lever Interlocking Machine 3.7 MB
1911	Signaling and Interlocking on the North Western Terminal in Chicago 1.1 MB
1911	The Absolute Permissive System 6.7 MB
1911	The Absolute Permissive System 881.6 KB
1911	The Newest Terminal Interlocking 611.9 KB

Grand Central Terminal, New York, NY 2

1911	New 400-Lever Interlocking Machine 3.7 MB
1911	The Newest Terminal Interlocking 611.9 KB

Hall Switch & Signal 1

1911	Automatic Signals on the Northern Pacific 7.2 MB

highway crossing signals 1

1911	Letters to the Editor: A Difference of Opinion 739.6 KB

Howe, W. K. 2

1911	The Absolute Permissive System 6.7 MB
1911	The Absolute Permissive System 881.6 KB

Illinois 1

1911	A Comparison of the Interlocking Laws of the Various States 2.6 MB

Illinois Central 1

1911	General News (August 1911) 557.3 KB

Illinois Traction System 2

1911	Automatic Signals on Vermillion River Bridge 986.3 KB
1911	Signaling on the Illinois Traction System 1.5 MB

index 1

1911	1911 index 1.1 MB

Indiana 1

1911	A Comparison of the Interlocking Laws of the Various States 2.6 MB

interlocking 8

1911	Automatic Signals on the Chicago Great Western 7.4 MB
1911	Automatic Signals on the Northern Pacific 7.2 MB
1911	Automatic Signals on the Northern Pacific 6.3 MB
1911	Interlocking on the North Western Terminal 7.6 MB
1911	New 400-Lever Interlocking Machine 3.7 MB
1911	Signaling and Interlocking on the North Western Terminal in Chicago 1.1 MB
1911	Signaling on the New York Tunnel Extension of the Pennsylvania 1.0 MB
1911	Signaling Practice on Steam Railways 5.5 MB

interlocking laws 1

1911	A Comparison of the Interlocking Laws of the Various States 2.6 MB

interurban railways 3

1911	Automatic Block Signal System for Electric Railways 4.9 MB
1911	Interurban Block Signals 1.7 MB
1911	Train Dispatching on Interurban Railways 2.0 MB

Kalama, WA 1

1911	Automatic Signals on the Northern Pacific 7.2 MB

Kent, IL 1

1911	Automatic Signals on the Chicago Great Western 7.4 MB

Lake Shore & Michigan Southern 1

1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB

Lake Street, Chicago, IL 2

1911	Interlocking on the North Western Terminal 7.6 MB
1911	Signaling and Interlocking on the North Western Terminal in Chicago 1.1 MB

Laurel, MT 1

1911	Automatic Signals on the Northern Pacific 6.3 MB

Livingston, MT 1

1911	Automatic Signals on the Northern Pacific 6.3 MB

Loomis, CA 1

1911	The Staff System on the Southern Pacific 4.0 MB

Louisville & Nashville 1

1911	A Summary of Signaling Practice 3.6 MB

Mackinaw Jct., IL 1

1911	Signaling on the Illinois Traction System 1.5 MB

Manitoba Jct., MN 1

1911	Automatic Signals on the Northern Pacific 7.2 MB

manual block signaling 2

1911	Automatic Signals on the Northern Pacific 6.3 MB
1911	Letters to the Editor: Uniform Signaling: A reply to Mr. Rudd 1.8 MB

Maywood, IL 1

1911	Automatic Signals on the Chicago Great Western 7.4 MB

mechanical interlocking 4

1911	Automatic Signals on the Northern Pacific 6.3 MB
1911	General News (August 1911) 557.3 KB
1911	Standard Outline Bill of Mechanical Material 8.7 MB
1911	The Mechanics of the Compensator 1.8 MB

Metropolitan West Side Elevated 1

1911	A Summary of Signaling Practice 3.6 MB

Michigan 1

1911	A Comparison of the Interlocking Laws of the Various States 2.6 MB

Minneapolis, St. Paul & Sault Ste. Marie 1

1911	General News (August 1911) 557.3 KB

Missoula, MT 1

1911	Automatic Signals on the Northern Pacific 7.2 MB

Missouri-Kansas-Texas 1

1911	A Summary of Signaling Practice 3.6 MB

Mock, J. C. 1

1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB

Nachod Signal 2

1911	Automatic Block Signal System for Electric Railways 4.9 MB
1911	Contact Signals for Electric Railways 2.8 MB

Nachod, Carl P. 1

1911	Contact Signals for Electric Railways 2.8 MB

New York 1

1911	A Comparison of the Interlocking Laws of the Various States 2.6 MB

New York Central 2

1911	New 400-Lever Interlocking Machine 3.7 MB
1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB

New York State Railways 1

1911	Train Dispatching on Interurban Railways 2.0 MB

New York tunnel 1

1911	Signaling on the New York Tunnel Extension of the Pennsylvania 1.0 MB

New York, NY 4

1911	New 400-Lever Interlocking Machine 3.7 MB
1911	Recent Improvements in Signaling 856.5 KB
1911	Signaling on the New York Tunnel Extension of the Pennsylvania 1.0 MB
1911	The Newest Terminal Interlocking 611.9 KB

New York, Ontario & Western 1

1911	A Summary of Signaling Practice 3.6 MB

Noble Street, Chicago, IL 2

1911	Interlocking on the North Western Terminal 7.6 MB
1911	Signaling and Interlocking on the North Western Terminal in Chicago 1.1 MB

nomenclature 1

1911	Symbols and Nomenclature for Written Circuits 2.3 MB

Northern Pacific 2

1911	Automatic Signals on the Northern Pacific 7.2 MB
1911	Automatic Signals on the Northern Pacific 6.3 MB

Pennsylvania 5

1911	A Summary of Signaling Practice 3.6 MB
1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB
1911	Recent Improvements in Signaling 856.5 KB
1911	Signaling on the New York Tunnel Extension of the Pennsylvania 1.0 MB
1911	The Principles of Railway Signaling 3.5 MB

Pennsylvania Station, New York, NY 2

1911	Recent Improvements in Signaling 856.5 KB
1911	Signaling on the New York Tunnel Extension of the Pennsylvania 1.0 MB

Peoria, IL 1

1911	Signaling on the Illinois Traction System 1.5 MB

power signaling 1

1911	Summary of Recent Progress in Signaling 4.4 MB

primary batteries 1

1911	Automatic Signals on the Chicago Great Western 7.4 MB

Railway Signal Association 1

1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB

Ridge Farm, IL 1

1911	Automatic Signals on Vermillion River Bridge 986.3 KB

Ridgley Jct., IL 1

1911	Signaling on the Illinois Traction System 1.5 MB

route locking 1

1911	Summary of Recent Progress in Signaling 4.4 MB

Rudd, A. H. 4

1911	Letters to the Editor: Uniform Signaling: A reply to Mr. Rudd 1.8 MB
1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB
1911	Summary of Recent Progress in Signaling 4.4 MB
1911	The Principles of Railway Signaling 3.5 MB

Selbytown, IL 1

1911	Signaling on the Illinois Traction System 1.5 MB

semaphore mechanisms 1

1911	Summary of Recent Progress in Signaling 4.4 MB

semaphore signals 2

1911	Automatic Signals on the Chicago Great Western 7.4 MB
1911	Signaling on the Illinois Traction System 1.5 MB

shipping case 1

1911	Relay Shipping Case 1.1 MB

signal aspects 1

1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB

signal indications 3

1911	Letters to the Editor: Uniform Signaling: A reply to Mr. Rudd 1.8 MB
1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB
1911	Signaling Practice on Steam Railways 5.5 MB

signal inspections 1

1911	Results of Inspections Made by the Block Signal and Train Control Board 2.8 MB

signal trouble 1

1911	An Interesting Case of Trouble 776.2 KB

signaling practice 3

1911	A Summary of Signaling Practice 3.6 MB
1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB
1911	Signaling Practice on Steam Railways 5.5 MB

Southern Pacific 2

1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB
1911	The Staff System on the Southern Pacific 4.0 MB

St. Louis, MO 1

1911	Signaling on the Illinois Traction System 1.5 MB

Standard Code 1

1911	A Comparison of the Interlocking Laws of the Various States 2.6 MB

Staunton, IL 1

1911	Signaling on the Illinois Traction System 1.5 MB

Stevens, T. S. 1

1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB

Stockton, IL 1

1911	Automatic Signals on the Chicago Great Western 7.4 MB

Sycamore, IL 1

1911	Automatic Signals on the Chicago Great Western 7.4 MB

symbols 2

1911	Suggestions as to the Standard Symbols 1.9 MB
1911	Symbols and Nomenclature for Written Circuits 2.3 MB

Texas 1

1911	A Comparison of the Interlocking Laws of the Various States 2.6 MB

towers 2

1911	Interlocking on the North Western Terminal 7.6 MB
1911	Signaling and Interlocking on the North Western Terminal in Chicago 1.1 MB

train dispatching 1

1911	Train Dispatching on Interurban Railways 2.0 MB

train orders 1

1911	Train Dispatching on Interurban Railways 2.0 MB

Truckee, CA 1

1911	The Staff System on the Southern Pacific 4.0 MB

Union Pacific 1

1911	Railway Signal Association Convention: Committee I: Signaling Practice 3.8 MB

Union Switch & Signal 1

1911	The Staff System on the Southern Pacific 4.0 MB

Vermont 1

1911	A Comparison of the Interlocking Laws of the Various States 2.6 MB

Wadena, MN 1

1911	Automatic Signals on the Northern Pacific 7.2 MB

Wight, S. N. 1

1911	Symbols and Nomenclature for Written Circuits 2.3 MB

Winston, IL 1

1911	Automatic Signals on the Chicago Great Western 7.4 MB

Railway Signaling: 1911

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