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.
1952 | CTC Pays Its Way on B&O 733.2 KB |
---|
1937 | Barriers on the Michigan Central 7.0 MB |
---|---|
1927 | Michigan Central Train Control Approved 800.8 KB |
1925 | News of the Month (July 1925) 680.1 KB |
1924 | Study of Train Control on the Michigan Central 2.1 MB |
1947 | Railroads Request Relief from the ICC Signal Order 465.0 KB |
---|
1921 | New Interlockings at Jacksonville Terminal 3.4 MB |
---|---|
1949 | Two-Way Radio Speeds Busy Terminal Operation 3.0 MB |
1947 | Annual Review and Outlook 425.1 KB |
---|---|
1921 | New Interlockings at Jacksonville Terminal 3.4 MB |
1926 | Signal Business Is Good Especially For Single Track 382.3 KB |
1949 | Two-Way Radio Speeds Busy Terminal Operation 3.0 MB |
1943 | Long Island Replaces Interlocking Machine 3.4 MB |
---|---|
1952 | Speed Control Installed on the Long Island 1.3 MB |
1949 | Milwaukee Installs Automatic Block 8.2 MB |
---|---|
1913 | New Block Signaling on the North-Western 1.8 MB |
1939 | Drag Detectors Protect Bridges 3.2 MB |
---|---|
1927 | Missouri Pacific Operates Train in Either Direction on Both Tracks 1.8 MB |
1926 | Signal Business Is Good Especially For Single Track 382.3 KB |
1937 | Remote Control By Code 7.0 MB |
---|
1949 | Fast Work Laying Submarine Cable 3.1 MB |
---|---|
1915 | Jersey City Terminal Interlocking 5.1 MB |
1945 | CTC West of the Pecos On the Santa Fe 4.6 MB |
---|
1921 | A New Idea in Traffic Locking On the C&O 1.7 MB |
---|
1956 | The Crossing Accident Problem 986.5 KB |
---|
1914 | All Electric Interlocking at Joliet 1.5 MB |
---|---|
1933 | Automatic Interlocking for Drawbridge 2.0 MB |
1926 | Derail Pockets for Interlocking of Crossing at Joint Passenger Station 884.6 KB |
1934 | Elgin, Joliet & Eastern Installs Electric Interlocking at Drawbridge 2.3 MB |
1949 | Loudspeakers on the "J" 7.9 MB |
1949 | Signaling Adapted to Traffic On the Rock Island 5.2 MB |
1943 | Signals Ordered on the Kansas City Southern 1.4 MB |
---|
1947 | Railroads Request Relief from the ICC Signal Order 465.0 KB |
---|
1935 | Accident at Drawbridge 1.4 MB |
---|