Railway Signaling: 1949

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"FG", Louisville, KY 1
New Interlocking in Louisville   5.3 MB
"HX" Tower, Hackensack, NJ 1
Fast Work Laying Submarine Cable   3.1 MB
40-hour week 1
40-Hour Week Means More Signaling   1.1 MB
AAR Signal Section 1
Special Controls for Crossing Protection   971.5 KB
absolute permissive block signaling 1
Controlled Overlaps for Single-Track APB Signaling   1.5 MB
Afton, OK 1
Signaling Saves Time on Frisco   4.8 MB
all-relay interlocking 5
Entrance-Exit Interlocking Installed on Missouri Pacific   3.0 MB
New Interlocking at Chattanooga Terminal   5.2 MB
New Interlocking in Louisville   5.3 MB
New York Central Installs Interlocking   3.3 MB
Texas & Pacific New All-Relay Interlocking   4.3 MB
Allerton, MO 1
Signaling Adapted to Traffic On the Rock Island   5.2 MB
Arcadia, OH 1
Train Operation By Signal Inidication Used Extensively on the Nickel Plate   6.1 MB
Atchison, Topeka & Santa Fe 1
Santa Fe Gets Some Relief from ICC Signaling Order   2.2 MB
Atkinson, IL 1
Signaling Adapted to Traffic On the Rock Island   5.2 MB
Atlantic Coast Line 2
Coast Line Replaces Signaling On Engine District   8.1 MB
Main Line Crossovers   2.4 MB
automatic block signaling 7
Controlled Overlaps for Single-Track APB Signaling   1.5 MB
CTC Increases Capacity of Single-Track Freight Line Handling Heavy Traffic   6.1 MB
ICC Issues Statistics   850.7 KB
Milwaukee Installs Automatic Block   8.2 MB
New Automatic Block on the Katy   4.7 MB
Signaling and Interlocking On New Line of New York Subways   6.5 MB
Train Operation By Signal Inidication Used Extensively on the Nickel Plate   6.1 MB
automatic block signals 2
192 Miles of Automatic Block On Soo Line   6.0 MB
Signaling Adapted to Traffic On the Rock Island   5.2 MB
automatic interlocking 1
An Unusual Automatic Plant   4.5 MB
automatic train control 2
ICC Issues Statistics   850.7 KB
Santa Fe Gets Some Relief from ICC Signaling Order   2.2 MB
automatic train stop 2
ICC Issues Statistics   850.7 KB
Santa Fe Gets Some Relief from ICC Signaling Order   2.2 MB
Baltimore & Ohio 1
Varied Light Intensity   921.0 KB
Battle Creek, MI 1
Protection at All Crossings In Battle Creek on the Grand Trunk Western   6.6 MB
Bell Laboratories 1
The Transistor   3.1 MB
Benz, TX 1
New Automatic Block on the Katy   4.7 MB
Bethard, TX 1
New Automatic Block on the Katy   4.7 MB
Big Sandy Jct., KY 1
CTC Increases Capacity of Single-Track Freight Line Handling Heavy Traffic   6.1 MB
Blue Island, IL 1
Signaling Adapted to Traffic On the Rock Island   5.2 MB
Bonsack, VA 1
Either-Direction Running on Two Tracks on the Norfolk & Western   5.5 MB
bridges 1
Insulation of Rails   874.8 KB
Broadway Tower, Kansas City, MO 1
Entrance-Exit Interlocking Installed on Missouri Pacific   3.0 MB
Brooklyn, NY 1
Signaling and Interlocking On New Line of New York Subways   6.5 MB
Buffalo, NY 1
Train Operation By Signal Inidication Used Extensively on the Nickel Plate   6.1 MB
Bureau, IL 1
Signaling Adapted to Traffic On the Rock Island   5.2 MB
cab signaling 2
ICC Issues Statistics   850.7 KB
Santa Fe Gets Some Relief from ICC Signaling Order   2.2 MB
cab signals 1
Signaling Adapted to Traffic On the Rock Island   5.2 MB
Caldwell, KS 1
Signaling Adapted to Traffic On the Rock Island   5.2 MB
Caliente, CA 1
625 Miles of CTC in one Stretch   7.9 MB
Canadian Pacific 1
A Mile-Stone In Signaling   1.2 MB
car retarders 1
A Mile-Stone In Signaling   1.2 MB
carrier control 1
625 Miles of CTC in one Stretch   7.9 MB
centralized traffic control 11
40-Hour Week Means More Signaling   1.1 MB
625 Miles of CTC in one Stretch   7.9 MB
An Unusual Automatic Plant   4.5 MB
Coast Line Replaces Signaling On Engine District   8.1 MB
CTC Increases Capacity of Single-Track Freight Line Handling Heavy Traffic   6.1 MB
Either-Direction Running on Two Tracks on the Norfolk & Western   5.5 MB
Hold-Out Signals in CTC   1.0 MB
Modern Signaling on a Division   6.6 MB
Signaling Adapted to Traffic On the Rock Island   5.2 MB
Signaling Saves Time on Frisco   4.8 MB
Train Operation By Signal Inidication Used Extensively on the Nickel Plate   6.1 MB
Chattanooga Terminal 1
New Interlocking at Chattanooga Terminal   5.2 MB
Chattanooga, TN 1
New Interlocking at Chattanooga Terminal   5.2 MB
Chesapeake & Ohio 4
CTC Increases Capacity of Single-Track Freight Line Handling Heavy Traffic   6.1 MB
Hold-Out Signals in CTC   1.0 MB
Main Line Crossovers   2.4 MB
Modern Signaling on a Division   6.6 MB
Chicago & Illinois Midland 1
Insulation of Rails   874.8 KB
Chicago South Shore & South Bend 1
New Space Radio Relay System Adopted by South Shore   4.2 MB
Chicago, Burlington & Quincy 1
A Century of Signal Glass Developments   4.2 MB
Chicago, IL 1
Signaling Adapted to Traffic On the Rock Island   5.2 MB
Chicago, Milwaukee, St. Paul & Pacific 1
Milwaukee Installs Automatic Block   8.2 MB
Chicago, Rock Island & Pacific 2
Signaling Adapted to Traffic On the Rock Island   5.2 MB
Train Indicator for Motor Car   1.0 MB
circuits 1
Controlled Overlaps for Single-Track APB Signaling   1.5 MB
Claus, W. H. 1
Controlled Overlaps for Single-Track APB Signaling   1.5 MB
Cleveland, OH 1
Train Operation By Signal Inidication Used Extensively on the Nickel Plate   6.1 MB
coded track circuits 4
Coast Line Replaces Signaling On Engine District   8.1 MB
Coded Track Circuits   1.1 MB
Milwaukee Installs Automatic Block   8.2 MB
Signaling Adapted to Traffic On the Rock Island   5.2 MB
color light signals 1
CTC Increases Capacity of Single-Track Freight Line Handling Heavy Traffic   6.1 MB
color specifications 1
A Century of Signal Glass Developments   4.2 MB
communication trouble 1
Communications Trouble   2.0 MB
Corning Glass Works 1
A Century of Signal Glass Developments   4.2 MB
Crestwood, NY 1
New York Central Installs Interlocking   3.3 MB
crossing indicators 1
Crossing Protection   1.1 MB
Dallas, TX 1
Signaling Adapted to Traffic On the Rock Island   5.2 MB
Denison, TX 1
New Automatic Block on the Katy   4.7 MB
Denver & Rio Grande Western 1
An Unusual Automatic Plant   4.5 MB
Dr. William Churchill 1
A Century of Signal Glass Developments   4.2 MB
dragging equipment detectors 1
Signal Indications to Stop Trains When Dragging Equipment Detectors Operate   922.0 KB
East New York, NY 1
Signaling and Interlocking On New Line of New York Subways   6.5 MB
East Tulsa, OK 1
Signaling Saves Time on Frisco   4.8 MB
El Reno, OK 1
Signaling Adapted to Traffic On the Rock Island   5.2 MB
electric lock switches 2
Coast Line Replaces Signaling On Engine District   8.1 MB
CTC Increases Capacity of Single-Track Freight Line Handling Heavy Traffic   6.1 MB
Elgin, Joliet & Eastern 1
Loudspeakers on the "J"   7.9 MB
Elkhorn City, KY 1
CTC Increases Capacity of Single-Track Freight Line Handling Heavy Traffic   6.1 MB
Erie 1
Fast Work Laying Submarine Cable   3.1 MB
Euclid Avenue, New York, NY 1
Signaling and Interlocking On New Line of New York Subways   6.5 MB
flashing aspects 1
Varied Light Intensity   921.0 KB
flashing red aspect 1
Train Operation By Signal Inidication Used Extensively on the Nickel Plate   6.1 MB
flood detectors 1
New Automatic Block on the Katy   4.7 MB
Fox Lake, IL 1
Milwaukee Installs Automatic Block   8.2 MB
Freiberger, A. A. 1
A. A. Freiberger   827.1 KB
Fulton Street extension, New York, NY 1
Signaling and Interlocking On New Line of New York Subways   6.5 MB
General Railway Signal 7
Entrance-Exit Interlocking Installed on Missouri Pacific   3.0 MB
Modern Signaling on a Division   6.6 MB
New Interlocking at Chattanooga Terminal   5.2 MB
New Interlocking in Louisville   5.3 MB
New York Central Installs Interlocking   3.3 MB
Signal Research and Development   2.9 MB
Texas & Pacific New All-Relay Interlocking   4.3 MB
Gibson, IN 1
A Mile-Stone In Signaling   1.2 MB
grade time signals 1
Signaling and Interlocking On New Line of New York Subways   6.5 MB
Grand Rapids, MI 1
Modern Signaling on a Division   6.6 MB
Grand Trunk Western 1
Protection at All Crossings In Battle Creek on the Grand Trunk Western   6.6 MB
guides for success 1
Yardsticks   2.0 MB
H-5 searchlight signals 1
New Automatic Block on the Katy   4.7 MB
Hackensack, NJ 1
Fast Work Laying Submarine Cable   3.1 MB
Herington, KS 1
Signaling Adapted to Traffic On the Rock Island   5.2 MB
highway crossings 5
40-Hour Week Means More Signaling   1.1 MB
Crossing Protection   1.1 MB
New Interlocking in Louisville   5.3 MB
Protection at All Crossings In Battle Creek on the Grand Trunk Western   6.6 MB
Special Controls for Crossing Protection   971.5 KB
holding signals 2
Hold-Out Signals in CTC   1.0 MB
New Interlocking in Louisville   5.3 MB
Illinois Central 3
A Mile-Stone In Signaling   1.2 MB
A. A. Freiberger   827.1 KB
Controlled Overlaps for Single-Track APB Signaling   1.5 MB
Indiana Harbor Belt 1
A Mile-Stone In Signaling   1.2 MB
insulated joints 1
Insulation of Rails   874.8 KB
interlocking 9
Coast Line Replaces Signaling On Engine District   8.1 MB
Entrance-Exit Interlocking Installed on Missouri Pacific   3.0 MB
ICC Issues Statistics   850.7 KB
Modern Signaling on a Division   6.6 MB
New Automatic Block on the Katy   4.7 MB
New Interlocking at Chattanooga Terminal   5.2 MB
New Interlocking in Louisville   5.3 MB
New York Central Installs Interlocking   3.3 MB
Signaling and Interlocking On New Line of New York Subways   6.5 MB
Interstate Commerce Commission 3
Applications to ICC 1949-11   926.1 KB
ICC Issues Statistics   850.7 KB
Santa Fe Gets Some Relief from ICC Signaling Order   2.2 MB
Jacksonville Terminal 1
Two-Way Radio Speeds Busy Terminal Operation   3.0 MB
Jacksonville, FL 1
Two-Way Radio Speeds Busy Terminal Operation   3.0 MB
Janesville, WI 1
Milwaukee Installs Automatic Block   8.2 MB
Jersey City, NJ 1
Fast Work Laying Submarine Cable   3.1 MB
Joliet, IL 2
Loudspeakers on the "J"   7.9 MB
Signaling Adapted to Traffic On the Rock Island   5.2 MB
Kansas City, MO 2
Entrance-Exit Interlocking Installed on Missouri Pacific   3.0 MB
Signaling Adapted to Traffic On the Rock Island   5.2 MB
Kensington, IL 1
New Space Radio Relay System Adopted by South Shore   4.2 MB
Kentucky & Indiana Terminal 1
New Interlocking in Louisville   5.3 MB
laboratory 1
Signal Research and Development   2.9 MB
Lamar, MI 1
Modern Signaling on a Division   6.6 MB
Lehi, Utah 1
An Unusual Automatic Plant   4.5 MB
Longview, TX 1
Texas & Pacific New All-Relay Interlocking   4.3 MB
Louisville, KY 1
New Interlocking in Louisville   5.3 MB
lunar white 2
A Century of Signal Glass Developments   4.2 MB
Texas & Pacific New All-Relay Interlocking   4.3 MB
manual block signaling 2
Milwaukee Installs Automatic Block   8.2 MB
Train Operation By Signal Inidication Used Extensively on the Nickel Plate   6.1 MB
Markham Yard, IL 1
A Mile-Stone In Signaling   1.2 MB
Maryland & Pennsylvania 1
Varied Light Intensity   921.0 KB
Midvale, UT 1
An Unusual Automatic Plant   4.5 MB
Minneapolis, St. Paul & Sault Ste. Marie 1
192 Miles of Automatic Block On Soo Line   6.0 MB
Missouri Pacific 2
Entrance-Exit Interlocking Installed on Missouri Pacific   3.0 MB
Signal Indications to Stop Trains When Dragging Equipment Detectors Operate   922.0 KB
Missouri-Kansas-Texas 1
New Automatic Block on the Katy   4.7 MB
Montreal, Quebec 1
A Mile-Stone In Signaling   1.2 MB
Montvale, VA 1
Either-Direction Running on Two Tracks on the Norfolk & Western   5.5 MB
moose 1
Communications Trouble   2.0 MB
Morris, IL 1
Signaling Adapted to Traffic On the Rock Island   5.2 MB
motor car indicators 4
625 Miles of CTC in one Stretch   7.9 MB
New Automatic Block on the Katy   4.7 MB
Signaling Saves Time on Frisco   4.8 MB
Train Indicator for Motor Car   1.0 MB
movable bridges 1
Fast Work Laying Submarine Cable   3.1 MB
Muscatine, IA 1
Signaling Adapted to Traffic On the Rock Island   5.2 MB
New York Board of Transportation 1
Signaling and Interlocking On New Line of New York Subways   6.5 MB
New York Central 3
Main Line Crossovers   2.4 MB
New York Central Installs Interlocking   3.3 MB
Raising Poles   1.9 MB
New York, Chicago & St. Louis 1
Train Operation By Signal Inidication Used Extensively on the Nickel Plate   6.1 MB
New York, NY 1
Signaling and Interlocking On New Line of New York Subways   6.5 MB
Norfolk & Western 4
Applications to ICC 1949-11   926.1 KB
Crossing Protection   1.1 MB
Either-Direction Running on Two Tracks on the Norfolk & Western   5.5 MB
Hold-Out Signals in CTC   1.0 MB
NX interlocking 3
Entrance-Exit Interlocking Installed on Missouri Pacific   3.0 MB
New Interlocking in Louisville   5.3 MB
New York Central Installs Interlocking   3.3 MB
obituary 1
A. H. Rudd obituary   947.2 KB
Pennsylvania 2
A. H. Rudd obituary   947.2 KB
Main Line Crossovers   2.4 MB
Pere Marquette 2
Hold-Out Signals in CTC   1.0 MB
Modern Signaling on a Division   6.6 MB
personal 2
A. A. Freiberger   827.1 KB
A. H. Rudd obituary   947.2 KB
Pitkin Avenue Yard, New York, NY 1
Signaling and Interlocking On New Line of New York Subways   6.5 MB
plug-in relays 1
New Interlocking in Louisville   5.3 MB
Polo, MO 1
Signaling Adapted to Traffic On the Rock Island   5.2 MB
Porter, IN 1
Modern Signaling on a Division   6.6 MB
promotion 1
A. A. Freiberger   827.1 KB
Provo, UT 1
An Unusual Automatic Plant   4.5 MB
purple 1
A Century of Signal Glass Developments   4.2 MB
radio 1
Two-Way Radio Speeds Busy Terminal Operation   3.0 MB
railroad radio 1
New Space Radio Relay System Adopted by South Shore   4.2 MB
Railway Signal Association 1
A Century of Signal Glass Developments   4.2 MB
return on investment 1
40-Hour Week Means More Signaling   1.1 MB
Rochester, NY 1
Signal Research and Development   2.9 MB
Rock Island, IL 1
Signaling Adapted to Traffic On the Rock Island   5.2 MB
rock slide fences 1
625 Miles of CTC in one Stretch   7.9 MB
Rondout, IL 1
Milwaukee Installs Automatic Block   8.2 MB
route interlocking 1
New York Central Installs Interlocking   3.3 MB
Rudd, A. H. 1
A. H. Rudd obituary   947.2 KB
Salt Lake City, UT 1
625 Miles of CTC in one Stretch   7.9 MB
San Marcos, TX 1
New Automatic Block on the Katy   4.7 MB
Santa Fe Street, Kansas City, MO 1
Entrance-Exit Interlocking Installed on Missouri Pacific   3.0 MB
searchlight signals 2
Coast Line Replaces Signaling On Engine District   8.1 MB
New Automatic Block on the Katy   4.7 MB
signal aspects 3
A Century of Signal Glass Developments   4.2 MB
Train Operation By Signal Inidication Used Extensively on the Nickel Plate   6.1 MB
Varied Light Intensity   921.0 KB
signal colors 1
A Century of Signal Glass Developments   4.2 MB
signal glass 1
A Century of Signal Glass Developments   4.2 MB
signal lenses 1
A Century of Signal Glass Developments   4.2 MB
Silvis, IL 1
Signaling Adapted to Traffic On the Rock Island   5.2 MB
Soo Line 1
192 Miles of Automatic Block On Soo Line   6.0 MB
South Bend, IN 1
New Space Radio Relay System Adopted by South Shore   4.2 MB
Southern 1
Applications to ICC 1949-11   926.1 KB
speed checker 1
Yardsticks   947.2 KB
Spencer, WI 1
192 Miles of Automatic Block On Soo Line   6.0 MB
spring switches 1
ICC Issues Statistics   850.7 KB
Spring Valley, IL 1
Signaling Adapted to Traffic On the Rock Island   5.2 MB
St. Joseph, MI 1
Modern Signaling on a Division   6.6 MB
St. Louis-San Francisco 1
Signaling Saves Time on Frisco   4.8 MB
station time signals 1
Signaling and Interlocking On New Line of New York Subways   6.5 MB
switch machines 1
Main Line Crossovers   2.4 MB
tail track signals 1
Signaling Saves Time on Frisco   4.8 MB
telephone poles 1
Raising Poles   1.9 MB
Texas & Pacific 1
Texas & Pacific New All-Relay Interlocking   4.3 MB
time element relays 1
Controlled Overlaps for Single-Track APB Signaling   1.5 MB
Topeka, KS 1
Signaling Adapted to Traffic On the Rock Island   5.2 MB
track circuits 2
Insulation of Rails   874.8 KB
Train Operation By Signal Inidication Used Extensively on the Nickel Plate   6.1 MB
train indicators 1
Train Indicator for Motor Car   1.0 MB
transistors 1
The Transistor   3.1 MB
Troost Avenue, Kansas City, MO 1
Entrance-Exit Interlocking Installed on Missouri Pacific   3.0 MB
Union 1
Insulation of Rails   874.8 KB
Union Pacific 3
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
Signaling Saves Time on Frisco   4.8 MB
Villamont, VA 1
Either-Direction Running on Two Tracks on the Norfolk & Western   5.5 MB
Virginia Avenue, Louisville, KY 1
New Interlocking in Louisville   5.3 MB
Wabash 2
Signal Indications to Stop Trains When Dragging Equipment Detectors Operate   922.0 KB
Yardsticks   947.2 KB
Walworth, WI 1
Milwaukee Installs Automatic Block   8.2 MB
Waukesha, WI 1
192 Miles of Automatic Block On Soo Line   6.0 MB
Wichita, KS 1
Signaling Adapted to Traffic On the Rock Island   5.2 MB
yard intercom 1
Loudspeakers on the "J"   7.9 MB
yards 2
Loudspeakers on the "J"   7.9 MB
Two-Way Radio Speeds Busy Terminal Operation   3.0 MB

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