Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 516
1P§ Fig. 58. Applied either single or double under fish-plate. TRACK RETURN CIRCUIT. 503 In some types of bond the plug has a hole through it, and after placingit in the hole in the web of the rail a steel mandrel is driven through toexpand the copper outwardly to fill the hole. forest City… … 504 ELECTRIC STREET RAILWAYS. In numerous tests of rail bonds, Mr. W. C. Burton, of the J. G. White Co.,says it was found that where the copper plug was well pressed home theresistance of the joint between rail and bond did not exceed that of three-eighths inch of the bond itself, even after a year…
Electrical engineering
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