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.
Rule 55 and the Gretna Accident 1.8 MB |
The Gretna Disaster 252.1 KB |
Duluth Terminal Trestle Signaling 2.3 MB |
Extension of New Haven signals 684.8 KB |
Victoria Jubilee Bridge Protection 570.0 KB |
Emergency Suburban Traffic 252.9 KB |
Jersey City Terminal Interlocking 1.1 MB |
Extension of New Haven signals 684.8 KB |
Victoria Jubilee Bridge Protection 570.0 KB |
Emergency Suburban Traffic 252.9 KB |
Compensation of Pipe Lines 319.6 KB |
Emergency Suburban Traffic 252.9 KB |
Emergency Suburban Traffic 252.9 KB |
Emergency Suburban Traffic 252.9 KB |
Emergency Suburban Traffic 252.9 KB |
Emergency Suburban Traffic 252.9 KB |
Red as a Danger Indication 283.5 KB |
Red as a Danger Indication 283.5 KB |
Compensation of Pipe Lines 319.6 KB |
Extension of New Haven signals 684.8 KB |
Extension of New Haven signals 684.8 KB |
Victoria Jubilee Bridge Protection 570.0 KB |
Electric Interlocking at Aulon, Tennessee 882.6 KB |
Electric Interlocking at Davis, Illinois 241.3 KB |
Electric Interlockings in Australia 3.9 MB |
Extension of New Haven signals 684.8 KB |
First Position Light Signal Installation 580.6 KB |
New Interlockers on the Flint Belt Line 2.2 MB |
North Philadelphia Interlocking 828.9 KB |
Putting a GRS Interlocking Plant in Service 301.9 KB |
Victoria Jubilee Bridge Protection 570.0 KB |
Extension of New Haven signals 684.8 KB |
First Position Light Signal Installation 580.6 KB |
Extension of New Haven signals 684.8 KB |
Extension of New Haven signals 684.8 KB |
Rule 55 and the Gretna Accident 1.8 MB |
The Gretna Disaster 252.1 KB |
Electric Interlocking at Aulon, Tennessee 882.6 KB |
Emergency Suburban Traffic 252.9 KB |
1915 index 6.6 MB |
Victoria Jubilee Bridge Protection 570.0 KB |
Red as a Danger Indication 283.5 KB |
Extension of New Haven signals 684.8 KB |
Compensation of Pipe Lines 319.6 KB |
Victoria Jubilee Bridge Protection 570.0 KB |
Victoria Jubilee Bridge Protection 570.0 KB |
Extension of New Haven signals 684.8 KB |
Extension of New Haven signals 684.8 KB |
North Philadelphia Interlocking 828.9 KB |
Beam-Light Signals on the Pennsylvania 318.8 KB |
Emergency Suburban Traffic 252.9 KB |
First Position Light Signal Installation 580.6 KB |
North Philadelphia Interlocking 828.9 KB |
Trenton Electro-Mechanical Interlocking 1.7 MB |
Beam-Light Signals on the Pennsylvania 318.8 KB |
First Position Light Signal Installation 580.6 KB |
North Philadelphia Interlocking 828.9 KB |
Victoria Jubilee Bridge Protection 570.0 KB |
Victoria Jubilee Bridge Protection 570.0 KB |
Rule 55 and the Gretna Accident 1.8 MB |
The Gretna Disaster 252.1 KB |
Red as a Danger Indication 283.5 KB |
Extension of New Haven signals 684.8 KB |
British and American Railroad Signaling 3.6 MB |
Extension of New Haven signals 684.8 KB |
First Position Light Signal Installation 580.6 KB |
Red as a Danger Indication 283.5 KB |
Victoria Jubilee Bridge Protection 570.0 KB |
Red as a Danger Indication 283.5 KB |
Extension of New Haven signals 684.8 KB |
Victoria Jubilee Bridge Protection 570.0 KB |
Extension of New Haven signals 684.8 KB |
Compensation of Pipe Lines 319.6 KB |
Emergency Suburban Traffic 252.9 KB |
Electro-Pneumatic Plant at San Francisco 2.4 MB |
First Position Light Signal Installation 580.6 KB |
Jersey City Terminal Interlocking 1.1 MB |
North Philadelphia Interlocking 828.9 KB |
Victoria Jubilee Bridge Protection 570.0 KB |
Rule 55 and the Gretna Accident 1.8 MB |
The Gretna Disaster 252.1 KB |
Extension of New Haven signals 684.8 KB |
Extension of New Haven signals 684.8 KB |