Relay system just completed by Relay Automatic Telephone Co., in association with British Power Railway Signal Co.; installation of this nature has recently been put into service on British railway; features of new system are use of two wires only between cabins and ability of receiving cabin to pass on descriptions selectively to one or more boxes. (See also Modern Transport vol. 22, no. 558, Nov. 23, 1929 pp. 5-6, 4 figs; Elec. Rev., vol. 105, no. 2713, Nov. 22, 1929, pp. 926-928, 4 figs.; Engineer, vol. 148, no. 3854, Nov. 22, 1929, p. 562, 4 figs.; and Engineering, vol. 128, no. 3333, Nov. 29, 1929, p. 705, 1 fig)
New method of train describing
Ry Gaz
Railway Gazette and Railway News ; 51 , n 21 ; p 801-804
1929
4 pages
6 Figs.
Article (Journal)
English
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New method of train describing
Engineering Index Backfile | 1929
New method of train describing
Engineering Index Backfile | 1929
New method of train describing
Engineering Index Backfile | 1929
New method of train describing
Engineering Index Backfile | 1929