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This listing has ended. The seller has relisted this item or one like this. Item:Railroad Signaling Patents Full-Image on CD-ROM! |
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| This is a 2 CD-ROM set that traces the invention & development of railroad signaling systems & equipment in the United States from the mid-19th century to the current day. Nearly 1,600 patents as full-image PDF files are arranged in folders by area of use & sequentially by patent number. All files are full-image & printable. (Adobe Acrobat Reader or equivalent - free downloads) are required along with a PC computer with CD drive. This collection is a must for railroad hobbyists, historians & students of the development of rail transportation technology! Contents: Volume I
Block Signaling & Track Circuit Systems
Cab Signaling
Electrical Switches
Highway Crossing Signal Systems
Interlocking Systems
LED & Laser Light Signals
Light Signals
Non-Light Signals - Miscellaneous
Relays
Remote Light Signals
Searchlight Signals
Semaphores & Smashboards
Volume II
Absolute Permissive Block Signaling Systems
Coded Track Circuits
CTC Systems
CTC-Coded Track Systems-APB Systems
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Shipping and handling Item location: Flemington, NJ, United States Shipping to: Worldwide
 
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