Discussion of factors involved in standard of safety for track circuits. See also Ry. Engr., vol. 43, no. 514, Nov. 1922, pp. 404-406)
Direct current track circuits
Am. Ry. Assn. Signal Section, Proc
1922
2 Tables on Supp. plates
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1923
Improving direct current track circuits
Engineering Index Backfile | 1925
|Alternating current track circuits
Engineering Index Backfile | 1930
Alternating current track circuits
Engineering Index Backfile | 1929
Constant-current A-C. Track circuits
Engineering Index Backfile | 1932
|