Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 470
ic welding was accordingly the outgrowth of this early observation. In 1881, when itwas impossible to obtain copper wire in long lengths for dynamo fields, which necessitatedthe making of frequent joints in a heavy coil, Prof. Thomson discussed the possibility ofelectrically welding these wires,… … 1 o 4-J <j -M O >? :! <4l M »-2 < £ lO o CD 3* >> *0 kIOOOO 1 h (N CO >0 V-H „ dJ <u Mo! OS LO n £ <4-H 4-3 o o ^00 0 0 o o ^. i-i CM CO lC 4-9 o 3 ffiO dardimoerateder >: : : : M 5 c £>% ^oo = *J ■+-> b- r-l CM CO LO 43 . »o o o >o >o i-i iO lO t> CM…
Electrical engineering
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