Railway Signaling: 1937

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

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