May 1928 n 5 p 143-146: Cab signals and power immune from foreign current are features; new code system of train stop in which four indications of cab signal are secured by novel system of coded current, transmitted through rails to approaching locomotive; train-control development on Pennsylvania; code system brought out in 1926; general description of operation; wayside control circuits; control for single track. June 1928 n 6 p 183-188 15 figs.: Description of apparatus on locomotive, including both electrical and pneumatic; manual-service application; automatic train-stop application; forestalling automatic train-stop application; preventing release; release after automatic train-stop application; details of pneumatic portion of code system; charging system. (See also Ry. Signaling, vol. 21, no. 4, Apr. 1928, pp. 125-132, 11 figs., and Ry. Age, vol. 84, no. 2, Jan. 14, 1928, pp. 139-142, 4 figs)
Code system of train stop installed on the Pennsylvania
Ry. Elec. Engr
Railway Electrical Engineer ; 19 , n 5-6
1928
15 Figs.
Article (Journal)
English
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Code system of train stop installed on the Pennsylvania
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