Whereas interlocking has, in previous panel installations, been accomplished through relays, Doncaster rotary sequence switches are used for interlocking; in this respect, new installation is first of its kind in world; switches are motor driven, and can be stopped in any one of 12 radial positions; layout and special arrangements. (see also Elecn v 142 n 3683 Jan 14 1949 p 117-8; Elec Times v 115 n 2984 Jan 13 1949 p 43-4)
Re-signalling at Doncaster
Engineer
Engineer ; 187 , n 4852
1949
3 pages
Photographs, Diagram
Article (Journal)
English
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