Principal units of mechanical and electromechanical interlocking classified as follows; interlocking station, machine, mechanical locking machine appurtenances, leadout, foundation, etc; questions dealing with mechanical and electromechanical interlocking. (Signal Section)
American railway signaling principles and practices. Chapter XVII -- Mechanical and electro-mechanical interlocking
American Railway Signaling Principles Practices
1933
85 pages
Figures, Tables
Buch
Englisch
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American railway signaling principles and practices -- Chapter 18: electro-pneumatic interlocking
Engineering Index Backfile | 1953
Electro-pneumatic interlocking (chapt18) of American railway signaling principles and practices
Engineering Index Backfile | 1930