Recent installation of automatic tubular aluminum-alloy highway gates, operated electrically and controlled by track circuits; 1/2- hp. Westinghouse motor operates gate arms through silent chain and worm-gear drive; safety features. (See also Ry. Signaling vol. 22, no. 8, Aug. 1929 pp. 303-304, 3 figs)
North Shore line installs automatic highway crossing gates
Ry. Age
Railway Age ; 87 , n 7
1929
2 pages
3 Figs.
Article (Journal)
English
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North Shore line installs automatic highway crossing gates
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