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 Engineer v 187 n 4852 Jan 21 1949 p 73-5; Elecn v 142 n 3683 Jan 14 1949 p 117-8)
Re-signalling at Doncaster
Elec Times
Electrical Times ; 142 , n 3683
1949
2 pages
Photographs, Diagram
Article (Journal)
English
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Engineering Index Backfile | 1949
Engineering Index Backfile | 1949
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British Library Online Contents | 1992
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