Full details and description showing the methods of operation, of this electrical system. Used at Cincinnati by the C. C. C. and St. Louis Ry.
The Ramsey Weir electrical interlocking apparatus
RR Gaz
1893
Article (Journal)
English
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Press-button electrical interlocking apparatus
Engineering Index Backfile | 1936
|Electric interlocking apparatus
Engineering Index Backfile | 1899
|Online Contents | 2003
Mechanical and electrical interlocking : (british practice)
TIBKAT | 1963
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