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.
1937 1
1937 index
4.8 MB
|
A & S Crossing, IL 1
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
Alton 1
Ames, NE 1
application for signaling changes 1
approach indications 1
approach locking 1
aspects and indications 1
Atchison, Topeka & Santa Fe 4
Austria 1
automatic block signaling 17
automatic interlocking 4
automatic train control 3
automatic train stop 1
back locking 1
Baltimore & Ohio 4
Baltimore & Ohio Chicago Terminal 1
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
Blue Island, IL 2
Boston & Maine 5
Boston Elevated 1
Boston, MA 1
braking distance 1
Bridge 8, WI 1
broken rails 1
|
Broken Rails
1.1 MB
|
Bureau, IL 1
Byers Jct., OH 1
cab signals 1
Cairo, IL 1
|
Ohio Flood Damages Signaling
9.7 MB
|
Camden, NJ 1
|
Delaware River Bridge Signaling
13.9 MB
|
Canadian National 2
Canadian Pacific 3
car retarders 1
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
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
Chicago & Eastern Illinois 2
|
Ohio Flood Damages Signaling
9.7 MB
|
|
Railroad Grade Crossing Gates
2.2 MB
|
Chicago & Illinois Midland 1
Chicago & North Western 2
|
APB Circuits
1.1 MB
|
|
Personal: C&NW
1.3 MB
|
Chicago Motor Club 1
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
Chicago, Rock Island & Pacific 5
Cincinnati Union Terminal 1
|
Ohio Flood Damages Signaling
9.7 MB
|
Cincinnati, OH 1
|
Ohio Flood Damages Signaling
9.7 MB
|
circuit plans 1
circuits 1
|
Route Locking Circuits
1.9 MB
|
Cleveland, Cincinnati, Chicago & St. Louis 3
CM Cabin, East Liberty, PA 1
code transmitters 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
color light signals 4
color position light signals 1
Columbia, PA 1
Columbia, SC 1
Columbus, NE 1
Corcoran, L. L. 1
crossing barriers 2
crossing cut-outs 1
|
Push-Button Cut-Outs
989.3 KB
|
Decatur, IL 1
Delaware & Hudson 1
Delaware River 1
|
Delaware River Bridge Signaling
13.9 MB
|
Delaware, Lackawanna & Western 2
Denver & Rio Grande Western 2
Detroit River tunnel 1
|
J. C. Mock Retires
1.4 MB
|
Detroit, MI 1
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
dwarf signals 2
East Bridge Jct., LA 1
East Liberty, PA 1
East St. Louis, IL 1
Edgebrook, IL 1
electric interlocking 1
electric lighting 1
electric lock switches 1
|
New Devices- March 1937
18.1 MB
|
electric switch lamps 1
electrification 1
Elmira, NY 1
Elsworth, R. B. 1
Erie 3
Evansville, IN 1
|
Ohio Flood Damages Signaling
9.7 MB
|
false proceed failures 1
|
False Clear Failures
2.0 MB
|
federal regulation 1
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
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
Girard Jct., PA 1
Glen Carbon, IL 1
Grand Trunk Western 3
graphic train charts 1
Great Northern 2
Greenville, PA 1
|
Gauntlet Signals on the B&LE
7.1 MB
|
Gresham, Chicago, IL 1
H-2 searchlight signals 2
|
Signal Construction on the Wabash
12.2 MB
|
|
Signaling on the Wabash
3.7 MB
|
Hamlet, NC 1
Harrisburg, PA 1
Havre de Grace, MD 1
Helper, UT 1
highway crossings 16
Huey P. Long bridge, New Orleans, LA 1
Huntington, WV 1
|
Ohio Flood Damages Signaling
9.7 MB
|
Huntley, PA 1
Illinois Central 5
illumination 1
index 1
|
1937 index
4.8 MB
|
inspections 1
interlocking 19
Interstate Commerce Commission 4
Jackson, MI 1
Jenkintown, PA 1
|
Remote Control By Code
7.0 MB
|
Lansing, MI 1
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
Linndale, OH 1
Litchfield & Madison 1
Lodge, IL 1
Louisville & Nashville 4
Louisville, KY 2
lunar white 1
maintenance 1
|
Improving Signal Performance
2.1 MB
|
Malmö, Sweden 1
manual block signaling 2
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
Michigan Central 3
Midland City, OH 1
Midland of Manitoba 1
Midvale, UT 1
Mississippi River bridge, New Orleans, LA 1
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
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
Morrisville, PA 1
motor cars 1
|
Flag and Torpedo Containers
903.1 KB
|
Musselman, OH 1
Nachod & United States Signal 1
|
New Devices- March 1937
18.1 MB
|
National Bureau of Standards 1
New Orleans Public Belt 1
New Orleans, LA 1
New York 1
|
Rule for Crossing Protection
1.2 MB
|
New York Central 10
New York Rapid Transit 1
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
New York, Ontario & Western 1
Niagara Falls, NY 1
Niagara Junction 1
Noble, S. E. 1
|
Personal: C&NW
1.3 MB
|
non-interlocked railroad crossings 1
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
Northern Pacific 2
NX interlocking 1
Oakington, MD 1
obituary 1
|
Personal: C&NW
1.3 MB
|
Orland Park, IL 1
Paducah, KY 1
|
Ohio Flood Damages Signaling
9.7 MB
|
Parkersburg, WV 2
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
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
Philadelphia Rapid Transit 1
|
Delaware River Bridge Signaling
13.9 MB
|
Philadelphia, PA 2
Plainview, IL 1
Porter, L. B. 1
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
Provo, UT 1
radio communication 1
Rawlins, WY 1
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
relays 2
remote control 4
remote control switch 1
Richland, NE 1
Rinaker, IL 1
Riner, WY 1
Rock Island, IL 1
Rockford, IL 1
rotating stop signs 1
|
The Rotating Stop Sign
1.1 MB
|
route interlocking 2
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
San Francisco, CA 1
Schwendt, B. J. 1
Seaboard Air Line 2
searchlight signals 4
|
CTC On the Denver & Rio Grande Western
8.0 MB
|
|
New Devices- March 1937
18.1 MB
|
|
Signal Construction on the Wabash
12.2 MB
|
|
Signaling on the Wabash
3.7 MB
|
semaphore signals 1
semi-automatic interlocking 1
Sheets, R. A. 1
|
Personal: C&NW
1.3 MB
|
signal colors 1
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 instruction 1
signal lamps 1
signal lighting 1
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
Sinclair, MT 1
South Amboy, NJ 1
Southern 4
Southern Pacific 4
speeds 1
|
Track Layout for CTC
1.2 MB
|
spring switches 5
St. Charles, MO 1
|
Signaling on the Wabash
3.7 MB
|
St. Louis-San Francisco 3
State Line, WI 1
Sterling Run, PA 1
streamlined passenger trains 2
|
Track Shunting Problems
947.3 KB
|
|
Track Shunting Problems
2.5 MB
|
Sweden 1
Swedish State Railroads 1
Swissvale, PA 1
switch indicators 1
switch lamps 2
switch protection 1
T. George Stiles 1
|
New Devices- March 1937
18.1 MB
|
Texas & New Orleans 1
Texas & Pacific 4
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 instruments 1
|
New Devices- March 1937
18.1 MB
|
track occupancy detection 1
train order lamp 1
|
New Devices- March 1937
18.1 MB
|
train order signals 2
train orders 1
|
Special Locking Release
2.4 MB
|
train speeds 1
train telephones 2
|
Rocket Train Telephones
5.7 MB
|
|
Zephyr Train Telephones
2.3 MB
|
Trenton, NJ 1
Type SA signals 1
|
New Devices- March 1937
18.1 MB
|
U. S. Congress 1
Union Pacific 4
Union Switch & Signal 12
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
Washington St., Lansing, MI 1
Waterloo, NE 1
Wayland, MA 1
West Bridge Jct., LA 1
West Jct., OH 1
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
Winnipeg, Manitoba 1
WK Cabin, Swissvale, PA 1
Zephyr 1
|
Zephyr Train Telephones
2.3 MB
|