primary battery cell 1
New Devices
1.5 MB
|
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.
1935 1
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1935 index
4.5 MB
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"TRAIN" indicators 1
accident 8
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Accident at Automatic Plant
4.5 MB
|
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Accident at Drawbridge
1.4 MB
|
|
Call-on Signal Involved In Accident
1.1 MB
|
|
Collision on the Erie
2.2 MB
|
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Collision on the T&P
2.0 MB
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|
Improving Automatic Interlockings
3.5 MB
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Letter to the Editor: Use of Cab Signals
1.2 MB
|
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Signaling for Higher Train Speeds
3.0 MB
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accidents 2
aerial cable 1
all-relay interlocking 2
alternating current track circuits 1
Alton 2
approach lighting 1
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Checking Signal Lamps
3.3 MB
|
aspects and indications 1
Atchison, Topeka & Santa Fe 6
Atlantic Coast Line 6
Aurora, IL 2
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Safety of High Speed Trains
5.2 MB
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Signaling for Higher Train Speeds
3.0 MB
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auto-stop barriers 1
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Auto Stop Installed on C&NW
7.2 MB
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automatic block signaling 8
automatic interlocking 7
automatic train control 1
Bagley, F. H 1
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Night Check of Signal Lights
1.2 MB
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Baltimore & Ohio 5
Bangor, ME 1
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Safety of High Speed Trains
5.2 MB
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battery charger 1
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New Devices
1.5 MB
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Beaumont, TX 1
bonding 2
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Installation of Bond Wires
1.2 MB
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Installation of Bond Wires
4.0 MB
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Boston & Albany 1
Boston & Maine 9
Boston, MA 2
braking distance 8
Brooklyn, NY 1
Brooklyn-Manhattan Transit 1
Bureau of Public Roads 2
cab signaling 2
cab signals 2
Canadian National 2
Canadian Pacific 4
capacity 1
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Multiple-Block Signaling
7.0 MB
|
centralized traffic control 6
Chesapeake & Ohio 4
Cheyenne, WY 1
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Safety of High Speed Trains
5.2 MB
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Chicago & North Western 13
Chicago & Western Indiana 1
Chicago Great Western 2
Chicago Rapid Transit 2
Chicago, Burlington & Quincy 8
Chicago, IL 7
Chicago, Indianapolis & Louisville 1
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Removal of Switch Indicators
2.3 MB
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Chicago, Milwaukee, St. Paul & Pacific 6
Chicago, Rock Island & Pacific 4
circuit plans 1
circuits 4
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Auto Stop Installed on C&NW
7.2 MB
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Circuit for Flashing Light Signals
3.5 MB
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Circuit for Flashing Light Signals
3.6 MB
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Circuits for Crossing Signals
1.5 MB
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Cleveland, OH 1
Clifton Forge, VA 1
code line 1
coded track circuits 3
color light signals 6
color position light signals 1
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Multiple Aspect Signaling
3.3 MB
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color specifications 2
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Purple Signal Glasses
3.6 MB
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Purple Signal Glasses
3.3 MB
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Colorado & Southern 1
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Installation of Bond Wires
4.0 MB
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communication circuits 1
Covington, VA 1
Crestline, OH 1
crossing barriers 1
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Auto Stop Installed on C&NW
7.2 MB
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crossing bells 1
crossing flashers 3
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Alining Flashers
3.2 MB
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Circuit for Flashing Light Signals
3.5 MB
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Circuit for Flashing Light Signals
3.6 MB
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Dallas, TX 2
Dayton, TX 1
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Switch-Stand Selector
1.9 MB
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DC track circuits 1
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DC Track Circuits
963.2 KB
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De Kalb, IL 1
Delaware, Lackawanna & Western 2
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Call-on Signal Involved In Accident
1.1 MB
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Multiple Aspect Signaling
3.3 MB
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Delson, Quebec 1
Denver, CO 1
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Safety of High Speed Trains
5.2 MB
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Des Moines, IA 1
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Auto Stop Installed on C&NW
7.2 MB
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detector bars 1
disc signals 1
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Obsolescence in Signaling
3.4 MB
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DNL-41 relay 1
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An Under-Voltage Relay
1.2 MB
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drawbridge 1
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Accident at Drawbridge
1.4 MB
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dust storms 1
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Signaling in Dust Storms
2.3 MB
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East Springfield, IL 1
Eck, W. J. 1
El Paso, TX 1
electric interlocking 1
electric lock switches 1
electro-pneumatic interlocking 2
Elgin, Joliet & Eastern 1
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Purple Signal Glasses
3.3 MB
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Emergency Relief Appropriation Act 2
Erie 3
facing point locks 2
federal highway improvement program 1
flashing aspects 2
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Flashing Aspects
1.3 MB
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Multiple Aspect Signaling
3.3 MB
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flashing light signals 2
Florida East Coast 2
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Accident at Drawbridge
1.4 MB
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Signaling for Higher Train Speeds
3.0 MB
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Folsom Place, WI 1
Ft. Wayne, IN 2
Ft. Worth, TX 1
fundamental practices 1
Gault, P. M. 1
General Electric 2
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Signal Night for New York Railroad Club
1.1 MB
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Signal Transformers
2.2 MB
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General Railway Signal 9
Grand Central Terminal, New York, NY 1
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Multiple-Block Signaling
7.0 MB
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Grand Prairie, TX 1
Grand Trunk Western 1
Great Northern 4
ground detector relay 1
Gulf, Mobile & Northern 1
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Safety of High Speed Trains
5.2 MB
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Hall disc signals 1
Harrison, NJ 1
high-speed trains 8
Highland Park, IL 2
highway crossings 23
highway safety 1
Hobart, IN 2
Howson, E. T. 1
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Safety of High Speed Trains
5.2 MB
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Illinois Central 1
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Night Check of Signal Lights
1.2 MB
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index 1
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1935 index
4.5 MB
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Indian Hill, IL 1
indication locking 1
inspections 1
interlocking 21
interlocking consolidation 1
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Obsolescence in Signaling
3.4 MB
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Interstate Commerce Commission 4
Iowa Board of Railroad Commissioners 1
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Accident at Automatic Plant
4.5 MB
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Jupiter, FL 1
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Accident at Drawbridge
1.4 MB
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Kansas City Southern 1
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Installation of Bond Wires
4.0 MB
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Kansas City, MO 1
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Safety of High Speed Trains
5.2 MB
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Lagny, France 1
Lake, WI 1
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Safety of High Speed Trains
5.2 MB
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Lakewood, OH 1
light-out circuits 2
lightweight trains 1
Lincoln, NE 1
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Safety of High Speed Trains
5.2 MB
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line circuits 2
London & North Eastern 1
Los Angeles, CA 2
Louisville & Nashville 4
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Checking Rail Ends on Drawbridges
2.5 MB
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|
Removal of Switch Indicators
2.3 MB
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Signaling at Spring Switches
2.6 MB
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Trap Circuits at Railroad Crossings
4.6 MB
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lower quadrant semaphores 1
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Obsolescence in Signaling
3.4 MB
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lunar white 2
Maine Central 2
maintainers' quarters 2
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Maintainers' Tool Houses
3.5 MB
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Maintainers' Tool Houses
1.1 MB
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marker lamps 1
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Use of Marker Lamps
1.0 MB
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Martinez, CA 1
Mayfair, IL 2
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Safety of High Speed Trains
5.2 MB
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Signaling for Higher Train Speeds
3.0 MB
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McKeesport, PA 1
mechanical color light signals 1
mechanical interlocking 3
mechanical signals 1
Michigan Central 1
Milwaukee, WI 4
Miner, WI 2
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Safety of High Speed Trains
5.2 MB
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Signaling for Higher Train Speeds
3.0 MB
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Minneapolis & St. Louis 1
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Accident at Automatic Plant
4.5 MB
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Minneapolis, MN 2
Missouri Pacific 5
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Crossing Bells at Flasher Signals
1.9 MB
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Disposition of Mechanical Interlocking Equipment
1.3 MB
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Facing Point Locks on Switches
3.2 MB
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Flashing Aspects
1.3 MB
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Signaling in Dust Storms
2.3 MB
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Missouri-Kansas-Texas 3
Model 2A semaphore 1
Model 5 electric interlocking 1
Modena, PA 1
Moravia, IA 1
Morgan, H. G. 1
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Night Check of Signal Lights
1.2 MB
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Morning Sun, IA 2
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Accident at Automatic Plant
4.5 MB
|
|
Improving Automatic Interlockings
3.5 MB
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Mott Haven, NY 1
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Multiple-Block Signaling
7.0 MB
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movable bridges 2
MQ Crossing, NY 1
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Collision on the Erie
2.2 MB
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multiple-aspect signaling 3
Myrtle Avenue Line, Brooklyn, NY 1
Nadeau, CA 1
New Castle Jct., PA 1
New York Central 12
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Aerial Cable Versus Open Line
3.9 MB
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Avoiding Light-Out Signal Failures
1.2 MB
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DC Track Circuits
963.2 KB
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Disposition of Mechanical Interlocking Equipment
1.3 MB
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|
Facing Point Locks on Switches
3.2 MB
|
|
Installation of Bond Wires
4.0 MB
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|
Multiple Aspect Signaling
3.3 MB
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|
Multiple-Block Signaling
7.0 MB
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|
New York Central Extends South Bend Interlocking
6.0 MB
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|
Purple Signal Glasses
3.3 MB
|
|
Safety of High Speed Trains
5.2 MB
|
|
Signal Night for New York Railroad Club
1.1 MB
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New York subway 1
New York, Chicago & St. Louis 3
New York, New Haven & Hartford 4
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"Chattering" Slot Arms
2.3 MB
|
|
Checking Rail Ends on Drawbridges
2.5 MB
|
|
Multiple-Block Signaling
7.0 MB
|
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The Railways' Answer to the Demand for Speed
2.8 MB
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New York, NY 4
nickel plating 1
Noble, S. E. 1
Norden, CA 1
Northern Pacific 3
Oakdale, IL 1
obsolete equipment 1
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Obsolescence in Signaling
3.4 MB
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obsolete signal facilities 1
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Obsolescence in Signaling
3.4 MB
|
Omaha, NE 1
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Safety of High Speed Trains
5.2 MB
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OS device 1
Oshkosh, WI 1
overhauling 1
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Obsolescence in Signaling
3.4 MB
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Peerless Manufacturing 1
Pennsylvania 13
Pere Marquette 1
Philadelphia Rapid Transit 1
Philadelphia, PA 1
Pineville, NC 1
Pittsburgh & Lake Erie 1
pole lines 1
Portland, OR 1
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Safety of High Speed Trains
5.2 MB
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position light signals 3
power switches 1
power transfer relays 2
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An Under-Voltage Relay
1.2 MB
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Power Transfer Relay
1.3 MB
|
power-off indications 1
Public Works Administration 2
purple 3
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Multiple Aspect Signaling
3.3 MB
|
|
Purple Signal Glasses
3.6 MB
|
|
Purple Signal Glasses
3.3 MB
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rail locks 1
Railway Signal Association 1
Reading 2
rectifiers 1
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New Devices
1.5 MB
|
red center purple glass 1
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Purple Signal Glasses
3.3 MB
|
red center purple lenses 1
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Purple Signal Glasses
3.3 MB
|
relay 2
relays 5
remote control 3
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Obsolescence in Signaling
3.4 MB
|
|
Power-Off Lights at CTC Machines
2.1 MB
|
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Remote Control on the Seaboard
5.4 MB
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repair shop 1
reserve yellow 2
Rhea, Frank 1
Ridgewood Jct., NJ 1
Ridgewood, NJ 1
Rondout, IL 1
Rudd, A. H. 4
Rudd-Rhea report 1
Russell, IL 1
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Safety of High Speed Trains
5.2 MB
|
Rutherford Jct., NJ 1
Salina, KS 1
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Safety of High Speed Trains
5.2 MB
|
San Francisco, CA 1
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Safety of High Speed Trains
5.2 MB
|
San Jose, CA 1
Seaboard Air Line 4
|
Installation of Bond Wires
4.0 MB
|
|
Night Check of Signal Lights
1.2 MB
|
|
Remote Control on the Seaboard
5.4 MB
|
|
Removal of Switch Indicators
2.3 MB
|
searchlight signals 4
semaphore signals 5
|
"Chattering" Slot Arms
2.3 MB
|
|
Night Check of Signal Lights
1.2 MB
|
|
Repeating Reverse Signal Indication
2.9 MB
|
|
Snubbing Rectifier for 2A Signal
1.9 MB
|
|
Snubbing Relay for Semaphores
1.0 MB
|
semi-automatic interlocking 1
show sheds 1
Sierra Nevada mountains 1
signal aspects 7
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Flashing Aspects
1.3 MB
|
|
Modern Signal Aspects on the Boston & Maine
5.1 MB
|
|
Multiple Aspect Signaling
3.3 MB
|
|
Multiple-Block Signaling
7.0 MB
|
|
Purple Signal Glasses
3.6 MB
|
|
Purple Signal Glasses
3.3 MB
|
|
Use of Marker Lamps
1.0 MB
|
signal colors 3
|
Multiple Aspect Signaling
3.3 MB
|
|
Purple Signal Glasses
3.6 MB
|
|
Purple Signal Glasses
3.3 MB
|
signal indications 1
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Collision on the T&P
2.0 MB
|
signal lamps 2
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Checking Signal Lamps
3.3 MB
|
|
Night Intensity of Signal Lamps
2.6 MB
|
signal lighting 2
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Night Check of Signal Lights
1.2 MB
|
|
Night Intensity of Signal Lamps
2.1 MB
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signal maintainers 1
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Maintainers' Tool Houses
2.2 MB
|
signal mechanisms 1
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Obsolescence in Signaling
3.4 MB
|
signal spacing 8
signal standards 1
signal transformers 1
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Signal Transformers
2.2 MB
|
signaling 2
|
Remote Control on the Seaboard
5.4 MB
|
|
Signaling at Spring Switches
2.6 MB
|
slot arms 1
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"Chattering" Slot Arms
2.3 MB
|
snubbing rectifier 1
snubbing relay 1
South Acton, MA 1
South Bend, IN 1
South Street, PA 1
Southern 6
Southern Pacific 12
Southern Pines, NC 1
spring switches 2
Springfield, IL 1
St. Francis, WI 1
St. Louis, MO 1
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Safety of High Speed Trains
5.2 MB
|
St. Louis-San Francisco 1
|
Advantages of Modern Relays
4.0 MB
|
St. Paul, MN 4
Standard Code 1
|
Multiple Aspect Signaling
3.3 MB
|
Steele, VA 1
streamlined passenger trains 1
Suffern, NY 1
Suisun Bay, CA 1
switch circuit controllers 2
|
Inspecting Switch Circuit Controllers
1.7 MB
|
|
Switch-Stand Selector
1.9 MB
|
switch indicators 1
|
Removal of Switch Indicators
2.3 MB
|
switch machines 2
|
Obsolescence in Signaling
3.4 MB
|
|
Switch-Stand Selector
1.9 MB
|
switch points 1
|
Operating Long Switch Points
2.4 MB
|
switches 1
T&P Jct., TX 1
|
Collision on the T&P
2.0 MB
|
T. George Stiles 1
test equipment 1
testing 3
Texas & New Orleans 3
Texas & Pacific 5
tool houses 3
|
Maintainers' Tool Houses
2.2 MB
|
|
Maintainers' Tool Houses
3.5 MB
|
|
Maintainers' Tool Houses
1.1 MB
|
Toronto Terminals 2
track circuits 4
traffic signals 1
train order operation 1
|
Collision on the Erie
2.2 MB
|
transformers 1
|
New Devices
1.5 MB
|
trap circuits 1
Type D signals 1
Type E signals 1
Type SA signals 1
Union Pacific 6
Union Switch & Signal 6
UP M-10001 1
Wabash 2
Waltham, MA 1
Wampum, PA 1
Washington, DC 3
Wells and Van Buren Sts., Chicago, IL 1
West Concord, MA 1
Western Maryland 1
Western Pacific 1
Western Railroad Supply 1
wig wag signals 1
Wilkinson, IL 1
Wilmette, IL 2
Wilmington, DE 1
Wilson Ave., Chicago, IL 1
Wyant, Leroy 1
Wyeville, WI 1
X-Rays 1
York, England 1
Zane, W. F. 1
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Safety of High Speed Trains
5.2 MB
|