Railway Signaling: 1937

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1937 1
1937 index   4.8 MB
A & S Crossing, IL 1
Automatic Signals on Litchfield & Madison   3.5 MB
absolute permissive block signaling 7
APB Circuits   1.1 MB
APB, Remote Control, and CTC on the Baltimore & Ohio   11.9 MB
Location of Signals at Spring Switches   1.3 MB
Signal Construction on the Wabash   12.2 MB
Signaling at Lap Sidings   1.1 MB
Signaling at Lap Sidings   2.6 MB
Signaling on the Wabash   3.7 MB
accident 1
Rear-End Collision   1.3 MB
all-relay interlocking 1
Route Control Interlocking – A New Signaling Development   2.9 MB
Alton 1
Alton Uses Spring Switches on Ends of Double Track   5.0 MB
Ames, NE 1
Color Light Signals Replace Semaphores on Union Pacific   4.2 MB
application for signaling changes 1
Applications for Signaling Changes 1937-12   2.7 MB
approach indications 1
Approach Indications to Train Order Signals   4.2 MB
approach locking 1
Approach Locking on Dwarf Signals   1.2 MB
aspects and indications 1
Report of Committee X – Signaling Practice   2.9 MB
Atchison, Topeka & Santa Fe 4
Electric Switch Lamps on the Santa Fe   4.5 MB
Replacement and Life of Lamps   3.0 MB
Selection of Routes at Automatic Interlockings   1.4 MB
Train Shunt at Automatic Plants   1.2 MB
Austria 1
Electric Signal Lights in Austria   1.2 MB
automatic block signaling 17
Alton Uses Spring Switches on Ends of Double Track   5.0 MB
APB, Remote Control, and CTC on the Baltimore & Ohio   11.9 MB
Approach Indications to Train Order Signals   4.2 MB
Automatic Signals on Litchfield & Madison   3.5 MB
Broken Rails   1.1 MB
Interlocking and Signaling For New Bridge at New Orleans   5.9 MB
Location of Signals at Spring Switches   1.3 MB
New Automatics on the C&O   5.0 MB
Rock Island Installs Automatic Blocks   10.1 MB
Should Train Order Signals Control Automatic Signals   1.2 MB
Signal Construction on the Wabash   12.2 MB
Signaling at Lap Sidings   1.1 MB
Signaling at Lap Sidings   2.6 MB
Signaling on the Wabash   3.7 MB
Switch Lamps in Automatic Territory   1.2 MB
Switch Protection in Automatic Territory   3.0 MB
What is in Store for the Signal Field?   1.8 MB
automatic interlocking 4
Automatic Plant Replaces Mechanical Interlocking   1.3 MB
Selection of Routes at Automatic Interlockings   1.4 MB
Semi-Automatic Interlockings on the Boston Elevated   3.8 MB
Train Shunt at Automatic Plants   1.2 MB
automatic train control 3
Illinois Central Petitions to Remove Train Control   1.6 MB
Report of Committee X – Signaling Practice   2.9 MB
Rock Island Petitions Removal of Train Control   1.4 MB
automatic train stop 1
Illinois Central Petitions to Remove Train Control   1.6 MB
back locking 1
Signals in Advance of Switches   1.1 MB
Baltimore & Ohio 4
APB, Remote Control, and CTC on the Baltimore & Ohio   11.9 MB
Approach Indications to Train Order Signals   4.2 MB
Ohio Flood Damages Signaling   9.7 MB
The Rotating Stop Sign   1.1 MB
Baltimore & Ohio Chicago Terminal 1
Route Control Interlocking – A New Signaling Development   2.9 MB
battery charging rate control relay 1
New Devices- March 1937   18.1 MB
Bessemer & Lake Erie 1
Gauntlet Signals on the B&LE   7.1 MB
Bethayers, PA 1
Remote Control By Code   7.0 MB
Bloomington, IN 1
Crossing Protection on the Monon   5.0 MB
Blue Island, IL 2
Rock Island Petitions Removal of Train Control   1.4 MB
Route Control Interlocking – A New Signaling Development   2.9 MB
Boston & Maine 5
Approach Indications to Train Order Signals   4.2 MB
Highway Traffic Retarding Barriers on the Boston & Maine   8.0 MB
J. C. Mock Retires   1.4 MB
Report of Committee X – Signaling Practice   2.9 MB
Track Shunting Problems   947.3 KB
Boston Elevated 1
Semi-Automatic Interlockings on the Boston Elevated   3.8 MB
Boston, MA 1
Semi-Automatic Interlockings on the Boston Elevated   3.8 MB
braking distance 1
Report of Committee X – Signaling Practice   2.9 MB
Bridge 8, WI 1
Route Control Interlocking – A New Signaling Development   2.9 MB
broken rails 1
Broken Rails   1.1 MB
Bureau, IL 1
Rock Island Installs Automatic Blocks   10.1 MB
Byers Jct., OH 1
APB, Remote Control, and CTC on the Baltimore & Ohio   11.9 MB
cab signals 1
Report of Committee X – Signaling Practice   2.9 MB
Cairo, IL 1
Ohio Flood Damages Signaling   9.7 MB
Camden, NJ 1
Delaware River Bridge Signaling   13.9 MB
Canadian National 2
Replacement and Life of Lamps   3.0 MB
Shunt Sensitivity and Broken Rail Protection   4.3 MB
Canadian Pacific 3
Approach Locking on Dwarf Signals   1.2 MB
Signaling at Lap Sidings   2.6 MB
Switch Indicators Serve as Interlocking Control Devices   5.6 MB
car retarders 1
What is in Store for the Signal Field?   1.8 MB
Central of Georgia 1
False Clear Failures   2.0 MB
Central of New Jersey 3
Cut-Out Control for Crossing Signals   3.0 MB
J. C. Mock Retires   1.4 MB
Phantom Indications of Dwarfs   1.3 MB
centralized traffic control 12
APB, Remote Control, and CTC on the Baltimore & Ohio   11.9 MB
CTC in Coaling Station Territory   6.6 MB
CTC On the Denver & Rio Grande Western   8.0 MB
Delaware River Bridge Signaling   13.9 MB
Direct-Wire or Coded Circuits   1.3 MB
Ends of Double Track Controlled by CTC   12.4 MB
Pennsylvania CTC Installation   7.0 MB
Remote Control By Code   7.0 MB
Route Control Interlocking – A New Signaling Development   2.9 MB
Should Train Order Signals Control Automatic Signals   1.2 MB
Track Layout for CTC   1.2 MB
Track Occupancy Indications in CTC Territory   2.7 MB
Chesapeake & Ohio 8
Broken Rails   1.1 MB
Direct-Wire or Coded Circuits   1.3 MB
Gages for Mechanical Locking   2.4 MB
Inspection of Signal Facilities   2.1 MB
Location of Signals at Spring Switches   1.3 MB
New Automatics on the C&O   5.0 MB
Ohio Flood Damages Signaling   9.7 MB
Replacement and Life of Lamps   3.0 MB
Chestnut Hill, PA 1
Spring Switch at Branch Line Terminus   5.0 MB
Chicago & Eastern Illinois 2
Ohio Flood Damages Signaling   9.7 MB
Railroad Grade Crossing Gates   2.2 MB
Chicago & Illinois Midland 1
Illumination as a Type of Crossing Protection   3.0 MB
Chicago & North Western 2
APB Circuits   1.1 MB
Personal: C&NW   1.3 MB
Chicago Motor Club 1
Modernizing Crossing Protection With New Safety Features   2.9 MB
Chicago North Shore & Milwaukee 1
Rear-End Collision   1.3 MB
Chicago Rapid Transit 1
Rear-End Collision   1.3 MB
Chicago, Burlington & Quincy 4
Burlington Protects Three Crossings   6.9 MB
Push-Button Cut-Outs   989.3 KB
Track Shunting Problems   947.3 KB
Zephyr Train Telephones   2.3 MB
Chicago, IL 3
Automatic Gates on the Rock Island   7.3 MB
Rear-End Collision   1.3 MB
Three Gate Crossings in a Row   4.2 MB
Chicago, Indianapolis & Louisville 2
Broken Rails   1.1 MB
Crossing Protection on the Monon   5.0 MB
Chicago, Milwaukee, St. Paul & Pacific 5
Automatic Plant Replaces Mechanical Interlocking   1.3 MB
Personal Mention: L. B. Porter   1.5 MB
Special Locking Release   2.4 MB
Switch Protection in Automatic Territory   3.0 MB
Three Gate Crossings in a Row   4.2 MB
Chicago, Rock Island & Pacific 5
Automatic Gates on the Rock Island   7.3 MB
Rock Island Installs Automatic Blocks   10.1 MB
Rock Island Petitions Removal of Train Control   1.4 MB
Rocket Train Telephones   5.7 MB
Route Control Interlocking – A New Signaling Development   2.9 MB
Cincinnati Union Terminal 1
Ohio Flood Damages Signaling   9.7 MB
Cincinnati, OH 1
Ohio Flood Damages Signaling   9.7 MB
circuit plans 1
Drawings of Relay and Junction Box Details   1.0 MB
circuits 1
Route Locking Circuits   1.9 MB
Cleveland, Cincinnati, Chicago & St. Louis 3
Illumination as a Type of Crossing Protection   3.0 MB
Ohio Flood Damages Signaling   9.7 MB
Route Control Interlocking – A New Signaling Development   2.9 MB
CM Cabin, East Liberty, PA 1
Remote Control on the Pennsylvania   5.2 MB
code transmitter 1
New Devices- March 1937   18.1 MB
coded cab signaling 1
New Devices- March 1937   18.1 MB
coded control 2
Pennsylvania CTC Installation   7.0 MB
Remote Control By Code   7.0 MB
Coffeyville, KS 1
Illumination as a Type of Crossing Protection   3.0 MB
color light signals 4
Color Light Signals Replace Semaphores on Union Pacific   4.2 MB
Height of Light Signals   1.0 MB
Phantom Indications of Dwarfs   1.3 MB
Rock Island Installs Automatic Blocks   10.1 MB
color position light signals 1
APB, Remote Control, and CTC on the Baltimore & Ohio   11.9 MB
Columbia, PA 1
New Signaling on Pennsylvania   1.0 MB
Columbia, SC 1
Seaboard Utilizes Spring Switches   8.4 MB
Columbus, NE 1
Color Light Signals Replace Semaphores on Union Pacific   4.2 MB
Corcoran, L. L. 1
Changes on the New York Central Lines   2.3 MB
crossing barriers 2
Barriers on the Michigan Central   7.0 MB
Highway Traffic Retarding Barriers on the Boston & Maine   8.0 MB
crossing cut-outs 1
Push-Button Cut-Outs   989.3 KB
Decatur, IL 1
Signal Construction on the Wabash   12.2 MB
Delaware & Hudson 1
What is in Store for the Signal Field?   1.8 MB
Delaware River 1
Delaware River Bridge Signaling   13.9 MB
Delaware, Lackawanna & Western 2
J. C. Mock Retires   1.4 MB
Shunt Sensitivity and Broken Rail Protection   4.3 MB
Denver & Rio Grande Western 2
CTC On the Denver & Rio Grande Western   8.0 MB
What is in Store for the Signal Field?   1.8 MB
Detroit River tunnel 1
J. C. Mock Retires   1.4 MB
Detroit, MI 1
Route Control Interlocking – A New Signaling Development   2.9 MB
DNL-46 relay 1
New Devices- March 1937   18.1 MB
double filament lamps 1
New Devices- March 1937   18.1 MB
drafting 1
Prepare for Construction   1.2 MB
Driftwood, PA 1
Ends of Double Track Controlled by CTC   12.4 MB
dwarf signals 2
Approach Locking on Dwarf Signals   1.2 MB
Phantom Indications of Dwarfs   1.3 MB
East Bridge Jct., LA 1
Interlocking and Signaling For New Bridge at New Orleans   5.9 MB
East Liberty, PA 1
Remote Control on the Pennsylvania   5.2 MB
East St. Louis, IL 1
APB, Remote Control, and CTC on the Baltimore & Ohio   11.9 MB
Edgebrook, IL 1
Three Gate Crossings in a Row   4.2 MB
electric interlocking 1
Interlocking and Signaling For New Bridge at New Orleans   5.9 MB
electric lighting 1
Electric Signal Lights in Austria   1.2 MB
electric lock switches 1
New Devices- March 1937   18.1 MB
electric switch lamps 1
Electric Switch Lamps on the Santa Fe   4.5 MB
electrification 1
New Signaling on Pennsylvania   1.0 MB
Elmira, NY 1
What is in Store for the Signal Field?   1.8 MB
Elsworth, R. B. 1
Changes on the New York Central Lines   2.3 MB
Erie 3
Approach Indications to Train Order Signals   4.2 MB
Gages for Mechanical Locking   2.4 MB
What is in Store for the Signal Field?   1.8 MB
Evansville, IN 1
Ohio Flood Damages Signaling   9.7 MB
false clear failures 1
False Clear Failures   2.0 MB
federal regulation 1
Signal Inspection Bill Passed by Congress   3.4 MB
Ferguson, MO 1
Signaling on the Wabash   3.7 MB
flooding 3
Ohio Flood Damages Signaling   9.7 MB
Rectifiers in Flood Waters   972.4 KB
Rehabilitating Flooded Signaling   1.4 MB
FN-16 flasher relay 1
New Devices- March 1937   18.1 MB
four-block signaling 1
Report of Committee X – Signaling Practice   2.9 MB
fusees 1
Flag and Torpedo Containers   903.1 KB
gauntlet track 1
Gauntlet Signals on the B&LE   7.1 MB
General Railway Signal 9
APB, Remote Control, and CTC on the Baltimore & Ohio   11.9 MB
CTC On the Denver & Rio Grande Western   8.0 MB
Drawings of Relay and Junction Box Details   1.0 MB
Interlocking and Signaling For New Bridge at New Orleans   5.9 MB
New Devices- March 1937   18.1 MB
New York Central Installs First Button-Control Route Interlocking   9.0 MB
Remote Control By Code   7.0 MB
Signaling Eliminates Platform Maintenance   3.9 MB
Track Shunting Problems   2.5 MB
Girard Jct., PA 1
New York Central Installs First Button-Control Route Interlocking   9.0 MB
Glen Carbon, IL 1
Automatic Signals on Litchfield & Madison   3.5 MB
Grand Trunk Western 3
Approach Locking on Dwarf Signals   1.2 MB
Signaling Eliminates Platform Maintenance   3.9 MB
Warning Time With Crossing Gates   1.3 MB
graphic train charts 1
Track Occupancy Indications in CTC Territory   2.7 MB
Great Northern 2
Route Control Interlocking – A New Signaling Development   2.9 MB
Special Locking Release   2.4 MB
Greenville, PA 1
Gauntlet Signals on the B&LE   7.1 MB
Gresham, Chicago, IL 1
Automatic Gates on the Rock Island   7.3 MB
H-2 searchlight signals 2
Signal Construction on the Wabash   12.2 MB
Signaling on the Wabash   3.7 MB
Hamlet, NC 1
Seaboard Utilizes Spring Switches   8.4 MB
Harrisburg, PA 1
New Signaling on Pennsylvania   1.0 MB
Havre de Grace, MD 1
Pennsylvania CTC Installation   7.0 MB
Helper, UT 1
CTC On the Denver & Rio Grande Western   8.0 MB
highway crossings 16
Automatic Gates on the Rock Island   7.3 MB
Barriers on the Michigan Central   7.0 MB
Burlington Protects Three Crossings   6.9 MB
Crossing Protection on the Monon   5.0 MB
Cut-Out Control for Crossing Signals   3.0 MB
Highway Traffic Retarding Barriers on the Boston & Maine   8.0 MB
Illumination as a Type of Crossing Protection   3.0 MB
Modernizing Crossing Protection With New Safety Features   2.9 MB
Observance of Crossing Signals   2.0 MB
Push-Button Cut-Outs   989.3 KB
Rule for Crossing Protection   1.2 MB
Stop, Look and Listen   1.6 MB
The Rotating Stop Sign   1.1 MB
Three Gate Crossings in a Row   4.2 MB
Types of Crossing Signals Installed   1.1 MB
Warning Time With Crossing Gates   1.3 MB
Huey P. Long bridge, New Orleans, LA 1
Interlocking and Signaling For New Bridge at New Orleans   5.9 MB
Huntington, WV 1
Ohio Flood Damages Signaling   9.7 MB
Huntley, PA 1
Ends of Double Track Controlled by CTC   12.4 MB
Illinois Central 5
Illinois Central Petitions to Remove Train Control   1.6 MB
Interlocking and Signaling For New Bridge at New Orleans   5.9 MB
Ohio Flood Damages Signaling   9.7 MB
Report of Committee X – Signaling Practice   2.9 MB
Warning Time With Crossing Gates   1.3 MB
illumination 1
Illumination as a Type of Crossing Protection   3.0 MB
index 1
1937 index   4.8 MB
inspections 1
Inspection of Signal Facilities   2.1 MB
interlocking 19
APB, Remote Control, and CTC on the Baltimore & Ohio   11.9 MB
Approach Locking on Dwarf Signals   1.2 MB
Automatic Plant Replaces Mechanical Interlocking   1.3 MB
Delaware River Bridge Signaling   13.9 MB
Direct-Wire or Coded Circuits   1.3 MB
Gauntlet Signals on the B&LE   7.1 MB
Interlocking and Signaling For New Bridge at New Orleans   5.9 MB
New York Central Installs First Button-Control Route Interlocking   9.0 MB
Remote Control By Code   7.0 MB
Route Control Interlocking – A New Signaling Development   2.9 MB
Route Locking Circuits   1.9 MB
Selection of Routes at Automatic Interlockings   1.4 MB
Semi-Automatic Interlockings on the Boston Elevated   3.8 MB
Signaling Eliminates Platform Maintenance   3.9 MB
Special Locking Release   2.4 MB
Spring Switch at Branch Line Terminus   5.0 MB
Switch Indicators Serve as Interlocking Control Devices   5.6 MB
Train Shunt at Automatic Plants   1.2 MB
What is in Store for the Signal Field?   1.8 MB
Interstate Commerce Commission 4
Applications for Signaling Changes 1937-12   2.7 MB
Illinois Central Petitions to Remove Train Control   1.6 MB
Illumination as a Type of Crossing Protection   3.0 MB
Signal Inspection Bill Passed by Congress   3.4 MB
Jackson, MI 1
Barriers on the Michigan Central   7.0 MB
Jenkintown, PA 1
Remote Control By Code   7.0 MB
Lansing, MI 1
Signaling Eliminates Platform Maintenance   3.9 MB
lap sidings 2
Signaling at Lap Sidings   1.1 MB
Signaling at Lap Sidings   2.6 MB
lightweight trains 2
Track Shunting Problems   947.3 KB
Track Shunting Problems   2.5 MB
Lincoln, NJ 1
Cut-Out Control for Crossing Signals   3.0 MB
Linndale, OH 1
Route Control Interlocking – A New Signaling Development   2.9 MB
Litchfield & Madison 1
Automatic Signals on Litchfield & Madison   3.5 MB
Lodge, IL 1
Signal Construction on the Wabash   12.2 MB
Louisville & Nashville 4
Approach Indications to Train Order Signals   4.2 MB
Ohio Flood Damages Signaling   9.7 MB
Report of Committee X – Signaling Practice   2.9 MB
Warning Time With Crossing Gates   1.3 MB
Louisville, KY 2
Illumination as a Type of Crossing Protection   3.0 MB
Ohio Flood Damages Signaling   9.7 MB
lunar white 1
Seaboard Utilizes Spring Switches   8.4 MB
maintenance 1
Improving Signal Performance   2.1 MB
Malmö, Sweden 1
Railway Signaling by Wireless   1.6 MB
manual block signaling 2
Ends of Double Track Controlled by CTC   12.4 MB
Seaboard Utilizes Spring Switches   8.4 MB
Maryland & Pennsylvania 1
The Rotating Stop Sign   1.1 MB
mechanical interlocking 1
Gages for Mechanical Locking   2.4 MB
mechanical locking 1
Gages for Mechanical Locking   2.4 MB
Menoken, KS 1
Remote Control Switch Expedites Trains at a Junction on the Union Pacific   5.1 MB
Michigan Central 3
Barriers on the Michigan Central   7.0 MB
J. C. Mock Retires   1.4 MB
Route Control Interlocking – A New Signaling Development   2.9 MB
Midland City, OH 1
APB, Remote Control, and CTC on the Baltimore & Ohio   11.9 MB
Midland of Manitoba 1
Switch Indicators Serve as Interlocking Control Devices   5.6 MB
Midvale, UT 1
CTC On the Denver & Rio Grande Western   8.0 MB
Mississippi River bridge, New Orleans, LA 1
Interlocking and Signaling For New Bridge at New Orleans   5.9 MB
Missouri Pacific 7
APB Circuits   1.1 MB
Railroad Grade Crossing Gates   2.2 MB
Replacement and Life of Lamps   3.0 MB
Selection of Routes at Automatic Interlockings   1.4 MB
Signaling at Lap Sidings   1.1 MB
Switch Protection in Automatic Territory   3.0 MB
Types of Crossing Signals Installed   1.1 MB
Missouri-Kansas-Texas 3
Illumination as a Type of Crossing Protection   3.0 MB
Replacement and Life of Lamps   3.0 MB
Switch Protection in Automatic Territory   3.0 MB
Mock, J. C. 2
Changes on the New York Central Lines   2.3 MB
J. C. Mock Retires   1.4 MB
Monmouth Jct., NJ 1
New Signaling on Pennsylvania   1.0 MB
Morrisville, PA 1
New Signaling on Pennsylvania   1.0 MB
motor cars 1
Flag and Torpedo Containers   903.1 KB
Musselman, OH 1
APB, Remote Control, and CTC on the Baltimore & Ohio   11.9 MB
Nachod & United States Signal 1
New Devices- March 1937   18.1 MB
National Bureau of Standards 1
Selection of Colors for Signal Lights   1.3 MB
New Orleans Public Belt 1
Interlocking and Signaling For New Bridge at New Orleans   5.9 MB
New Orleans, LA 1
Interlocking and Signaling For New Bridge at New Orleans   5.9 MB
New York 1
Rule for Crossing Protection   1.2 MB
New York Central 10
Changes on the New York Central Lines   2.3 MB
J. C. Mock Retires   1.4 MB
New York Central Installs First Button-Control Route Interlocking   9.0 MB
Report of Committee X – Signaling Practice   2.9 MB
Route Control Interlocking – A New Signaling Development   2.9 MB
Route Locking Circuits   1.9 MB
Signals in Advance of Switches   1.1 MB
Switch Protection in Automatic Territory   3.0 MB
Unusual Signaling Trouble   2.2 MB
What is in Store for the Signal Field?   1.8 MB
New York Rapid Transit 1
Drawings of Relay and Junction Box Details   1.0 MB
New York, Chicago & St. Louis 2
Gages for Mechanical Locking   2.4 MB
Route Locking Circuits   1.9 MB
New York, New Haven & Hartford 1
Rehabilitating Flooded Signaling   1.4 MB
New York, Ontario & Western 1
Approach Locking on Dwarf Signals   1.2 MB
Niagara Falls, NY 1
Illumination as a Type of Crossing Protection   3.0 MB
Niagara Junction 1
Illumination as a Type of Crossing Protection   3.0 MB
Noble, S. E. 1
Personal: C&NW   1.3 MB
non-interlocked railroad crossings 1
Railroad Grade Crossing Gates   2.2 MB
Norfolk & Western 4
CTC in Coaling Station Territory   6.6 MB
Ohio Flood Damages Signaling   9.7 MB
The Rotating Stop Sign   1.1 MB
What is in Store for the Signal Field?   1.8 MB
North Vernon, IN 1
APB, Remote Control, and CTC on the Baltimore & Ohio   11.9 MB
Northern Pacific 2
Approach Locking on Dwarf Signals   1.2 MB
Automatic Plant Replaces Mechanical Interlocking   1.3 MB
NX interlocking 1
New York Central Installs First Button-Control Route Interlocking   9.0 MB
Oakington, MD 1
Pennsylvania CTC Installation   7.0 MB
obituary 1
Personal: C&NW   1.3 MB
Orland Park, IL 1
Signal Construction on the Wabash   12.2 MB
Paducah, KY 1
Ohio Flood Damages Signaling   9.7 MB
Parkersburg, WV 2
APB, Remote Control, and CTC on the Baltimore & Ohio   11.9 MB
Ohio Flood Damages Signaling   9.7 MB
Pennsylvania 15
A. H. Rudd Retires   1.6 MB
Approach Indications to Train Order Signals   4.2 MB
Changes on the Pennsylvania   1.6 MB
Direct-Wire or Coded Circuits   1.3 MB
Ends of Double Track Controlled by CTC   12.4 MB
J. C. Mock Retires   1.4 MB
New Signaling on Pennsylvania   1.0 MB
Ohio Flood Damages Signaling   9.7 MB
Pennsylvania CTC Installation   7.0 MB
Rehabilitating Flooded Signaling   1.4 MB
Remote Control on the Pennsylvania   5.2 MB
Report of Committee X – Signaling Practice   2.9 MB
Rule for Crossing Protection   1.2 MB
Signals in Advance of Switches   1.1 MB
Spring Switch at Branch Line Terminus   5.0 MB
Peoria, IL 1
Rock Island Installs Automatic Blocks   10.1 MB
Pere Marquette 1
Gages for Mechanical Locking   2.4 MB
Perryville, MD 2
New Signaling on Pennsylvania   1.0 MB
Pennsylvania CTC Installation   7.0 MB
personal 5
A. H. Rudd Retires   1.6 MB
Changes on the Pennsylvania   1.6 MB
J. C. Mock Retires   1.4 MB
Personal Mention: L. B. Porter   1.5 MB
Personal: C&NW   1.3 MB
phankill unit 1
New Devices- March 1937   18.1 MB
phantom indications 1
Phantom Indications of Dwarfs   1.3 MB
Philadelphia Rapid Transit 1
Delaware River Bridge Signaling   13.9 MB
Philadelphia, PA 2
Delaware River Bridge Signaling   13.9 MB
Spring Switch at Branch Line Terminus   5.0 MB
Plainview, IL 1
Alton Uses Spring Switches on Ends of Double Track   5.0 MB
Porter, L. B. 1
Personal Mention: L. B. Porter   1.5 MB
Portsmouth, OH 1
Ohio Flood Damages Signaling   9.7 MB
Post, W. M. 1
Changes on the Pennsylvania   1.6 MB
power switches 3
CTC in Coaling Station Territory   6.6 MB
Track Layout for CTC   1.2 MB
What is in Store for the Signal Field?   1.8 MB
Prichard, WV 1
CTC in Coaling Station Territory   6.6 MB
Provo, UT 1
CTC On the Denver & Rio Grande Western   8.0 MB
radio communication 1
Railway Signaling by Wireless   1.6 MB
Rawlins, WY 1
Color Light Signals Replace Semaphores on Union Pacific   4.2 MB
Reading 2
Direct-Wire or Coded Circuits   1.3 MB
Remote Control By Code   7.0 MB
rectifiers 1
Rectifiers in Flood Waters   972.4 KB
Reddick, IL 1
Signal Construction on the Wabash   12.2 MB
relays 2
Shunt Sensitivity and Broken Rail Protection   4.3 MB
Track Shunting Problems   2.5 MB
remote control 4
APB, Remote Control, and CTC on the Baltimore & Ohio   11.9 MB
Pennsylvania CTC Installation   7.0 MB
Remote Control By Code   7.0 MB
Remote Control on the Pennsylvania   5.2 MB
remote control switch 1
Remote Control Switch Expedites Trains at a Junction on the Union Pacific   5.1 MB
Richland, NE 1
Color Light Signals Replace Semaphores on Union Pacific   4.2 MB
Rinaker, IL 1
Alton Uses Spring Switches on Ends of Double Track   5.0 MB
Riner, WY 1
Color Light Signals Replace Semaphores on Union Pacific   4.2 MB
Rock Island, IL 1
Rock Island Petitions Removal of Train Control   1.4 MB
Rockford, IL 1
Burlington Protects Three Crossings   6.9 MB
rotating stop signs 1
The Rotating Stop Sign   1.1 MB
route interlocking 2
New York Central Installs First Button-Control Route Interlocking   9.0 MB
Route Control Interlocking – A New Signaling Development   2.9 MB
route locking 1
Route Locking Circuits   1.9 MB
Rudd, A. H. 4
A. H. Rudd Retires   1.6 MB
Changes on the Pennsylvania   1.6 MB
Report of Committee X – Signaling Practice   2.9 MB
Rule for Crossing Protection   1.2 MB
Salt Lake City, UT 1
CTC On the Denver & Rio Grande Western   8.0 MB
San Francisco, CA 1
Illumination as a Type of Crossing Protection   3.0 MB
Schwendt, B. J. 1
Changes on the New York Central Lines   2.3 MB
Seaboard Air Line 2
Location of Signals at Spring Switches   1.3 MB
Seaboard Utilizes Spring Switches   8.4 MB
searchlight signals 3
CTC On the Denver & Rio Grande Western   8.0 MB
Signal Construction on the Wabash   12.2 MB
Signaling on the Wabash   3.7 MB
semaphore signals 1
Color Light Signals Replace Semaphores on Union Pacific   4.2 MB
semi-automatic interlocking 1
Semi-Automatic Interlockings on the Boston Elevated   3.8 MB
Sheets, R. A. 1
Personal: C&NW   1.3 MB
signal colors 1
Selection of Colors for Signal Lights   1.3 MB
signal construction 2
Prepare for Construction   1.2 MB
Signaling Construction Methods   2.6 MB
signal flags 1
Flag and Torpedo Containers   903.1 KB
signal inspection law 1
Signal Inspection Bill Passed by Congress   3.4 MB
signal instruction 1
Instructing Enginemen on Signal Indications   2.7 MB
signal lamps 1
Replacement and Life of Lamps   3.0 MB
signal lighting 1
Electric Signal Lights in Austria   1.2 MB
signal maintainers 1
Broken Rails   1.1 MB
signal trouble 2
Unusual Signal Trouble   1.2 MB
Unusual Signaling Trouble   2.2 MB
signaling 1
Gauntlet Signals on the B&LE   7.1 MB
signaling practice 1
Report of Committee X – Signaling Practice   2.9 MB
Sinclair, MT 1
Automatic Plant Replaces Mechanical Interlocking   1.3 MB
South Amboy, NJ 1
New Signaling on Pennsylvania   1.0 MB
Southern 4
Height of Light Signals   1.0 MB
Instructing Enginemen on Signal Indications   2.7 MB
Ohio Flood Damages Signaling   9.7 MB
Switch Protection in Automatic Territory   3.0 MB
Southern Pacific 4
Instructing Enginemen on Signal Indications   2.7 MB
Interlocking and Signaling For New Bridge at New Orleans   5.9 MB
Special Locking Release   2.4 MB
Switch Protection in Automatic Territory   3.0 MB
speeds 1
Track Layout for CTC   1.2 MB
spring switches 5
Alton Uses Spring Switches on Ends of Double Track   5.0 MB
CTC in Coaling Station Territory   6.6 MB
Location of Signals at Spring Switches   1.3 MB
Seaboard Utilizes Spring Switches   8.4 MB
Spring Switch at Branch Line Terminus   5.0 MB
St. Charles, MO 1
Signaling on the Wabash   3.7 MB
St. Louis-San Francisco 3
Approach Indications to Train Order Signals   4.2 MB
Railroad Grade Crossing Gates   2.2 MB
Unusual Signaling Trouble   2.2 MB
State Line, WI 1
Route Control Interlocking – A New Signaling Development   2.9 MB
Sterling Run, PA 1
Ends of Double Track Controlled by CTC   12.4 MB
streamlined passenger trains 2
Track Shunting Problems   947.3 KB
Track Shunting Problems   2.5 MB
Swedish State Railroads 1
Railway Signaling by Wireless   1.6 MB
Swissvale, PA 1
Remote Control on the Pennsylvania   5.2 MB
switch indicators 1
Switch Indicators Serve as Interlocking Control Devices   5.6 MB
switch lamps 2
Electric Switch Lamps on the Santa Fe   4.5 MB
Switch Lamps in Automatic Territory   1.2 MB
switch protection 1
Switch Protection in Automatic Territory   3.0 MB
T. George Stiles 1
New Devices- March 1937   18.1 MB
Texas & New Orleans 1
Interlocking and Signaling For New Bridge at New Orleans   5.9 MB
Texas & Pacific 4
Interlocking and Signaling For New Bridge at New Orleans   5.9 MB
Switch Protection in Automatic Territory   3.0 MB
Unusual Signaling Trouble   2.2 MB
What is in Store for the Signal Field?   1.8 MB
Toledo, OH 1
New Automatics on the C&O   5.0 MB
Toronto Terminals 2
False Clear Failures   2.0 MB
Signals in Advance of Switches   1.1 MB
torpedoes 1
Flag and Torpedo Containers   903.1 KB
track circuits 3
Shunt Sensitivity and Broken Rail Protection   4.3 MB
Track Shunting Problems   947.3 KB
Track Shunting Problems   2.5 MB
track instrument 1
New Devices- March 1937   18.1 MB
track occupancy detection 1
Track Occupancy Indications in CTC Territory   2.7 MB
train order lamp 1
New Devices- March 1937   18.1 MB
train order signals 2
Approach Indications to Train Order Signals   4.2 MB
Should Train Order Signals Control Automatic Signals   1.2 MB
train orders 1
Special Locking Release   2.4 MB
train speeds 1
Report of Committee X – Signaling Practice   2.9 MB
train telephones 2
Rocket Train Telephones   5.7 MB
Zephyr Train Telephones   2.3 MB
Trenton, NJ 1
New Signaling on Pennsylvania   1.0 MB
Type SA searchlight signal 1
New Devices- March 1937   18.1 MB
U. S. Congress 1
Signal Inspection Bill Passed by Congress   3.4 MB
Union Pacific 4
Broken Rails   1.1 MB
Color Light Signals Replace Semaphores on Union Pacific   4.2 MB
Remote Control Switch Expedites Trains at a Junction on the Union Pacific   5.1 MB
Unusual Signal Trouble   1.2 MB
Union Switch & Signal 12
Color Light Signals Replace Semaphores on Union Pacific   4.2 MB
Ends of Double Track Controlled by CTC   12.4 MB
Illinois Central Petitions to Remove Train Control   1.6 MB
J. C. Mock Retires   1.4 MB
New Devices- March 1937   18.1 MB
Pennsylvania CTC Installation   7.0 MB
Remote Control on the Pennsylvania   5.2 MB
Rock Island Installs Automatic Blocks   10.1 MB
Shunt Sensitivity and Broken Rail Protection   4.3 MB
Signal Construction on the Wabash   12.2 MB
Signaling on the Wabash   3.7 MB
Track Shunting Problems   2.5 MB
Upper Sandusky, OH 1
New Automatics on the C&O   5.0 MB
Wabash 3
Signal Construction on the Wabash   12.2 MB
Signaling on the Wabash   3.7 MB
Switch Protection in Automatic Territory   3.0 MB
Walbridge, OH 1
New Automatics on the C&O   5.0 MB
warning time 1
Warning Time With Crossing Gates   1.3 MB
Washington St., Lansing, MI 1
Signaling Eliminates Platform Maintenance   3.9 MB
Waterloo, NE 1
Color Light Signals Replace Semaphores on Union Pacific   4.2 MB
Wayland, MA 1
Highway Traffic Retarding Barriers on the Boston & Maine   8.0 MB
West Bridge Jct., LA 1
Interlocking and Signaling For New Bridge at New Orleans   5.9 MB
West Jct., OH 1
APB, Remote Control, and CTC on the Baltimore & Ohio   11.9 MB
Western Maryland 2
Broken Rails   1.1 MB
Rehabilitating Flooded Signaling   1.4 MB
Western Railroad Supply 1
New Devices- March 1937   18.1 MB
Wheeling, WV 1
Ohio Flood Damages Signaling   9.7 MB
Wiegand, F. B. 1
Changes on the New York Central Lines   2.3 MB
Winnipeg, Manitoba 1
Switch Indicators Serve as Interlocking Control Devices   5.6 MB
WK Cabin, Swissvale, PA 1
Remote Control on the Pennsylvania   5.2 MB
Zephyr 1
Zephyr Train Telephones   2.3 MB

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