scholarly journals Physics for the Electrical Engineer

Nature ◽  
1959 ◽  
Vol 183 (4663) ◽  
pp. 707-707
Author(s):  
D. A. BELL
Keyword(s):  
1945 ◽  
Vol 64 (2) ◽  
pp. 58-60
Author(s):  
T. B. Holliday
Keyword(s):  

Author(s):  
M W J Etwell

This paper outlines the basic development background of the Class 58 locomotive and main design features, with areas of design development resulting from the introduction into service in 1983–85 of the first build of thirty-five locomotives and detail changes in design being applied to the second batch of fifteen locomotives authorized in 1984. This locomotive design developed from a joint exercise between British Rail Engineering Limited (BREL) and the then Chief Mechanical and Electrical Engineer (CM and EE), British Railways Board (BRB) in 1977 which resulted in BREL fully participating in the design development to utilize modern manufacturing methods. The Class 58 was designed by BR specifically for freight duties and is based on a strength underframe with bonnet-type structure and equipment in modular assemblies.


In the ‘Electrical World/ May, 1887, p. 258, or the ‘ Electrical Engineer’ (New York), June, 1887, p. 211, “ Novel Phenomena of Alternating Currents,” may he seen an account of some experiments by Professor Elihu Thomson on the mechanical force between conductors in which alternating currents are circulating. In the case of a ring of metal in the presence of an electromagnet, in the coils of which an alternating current is passing, a force of repulsion is experienced by the ring, and this may be accounted for in the words of Professor Thomson as follows :— “It may be stated as certainly true that were the induced currents in the closed conductor unaffected by any self-induction, the only phenomena exhibited would be alternate equal attractions and repulsions, because currents would be induced in opposite directions to that of the primary current when the latter current was I changing from zero to maximum positive or negative current, so producing repulsion; and would be induced in the same direction when changing from maximum positive or negative to zero, so producing attractions.”


2007 ◽  
Vol 53 ◽  
pp. 247-263 ◽  
Author(s):  
D. Rees ◽  
R. Y. Sharp
Keyword(s):  

Douglas Northcott was born Douglas Geoffrey Robertson, the son of Geoffrey Douglas Spence Robertson, who was an electrical engineer, and Clara Freda Behl. Geoffrey Robertson was killed in an accident soon after the young Douglas was born; Douglas was about 2 years old when his mother married Arthur Hugh Kynaston Northcott, and he grew up not knowing of his mother's remarriage. It was only in his teens that Douglas learnt that Arthur Northcott was, in fact, his stepfather; Douglas changed his surname by deed poll in 1935, and he always felt himself to be part of the Northcott family and referred to Arthur Northcott as his father.


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