Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 111
wires, of tinned copper, twisted together, and havea resistance of about one ohm to one thousand four hundredfeet. These conductors are insulated with strips of india 96 THK ELIXTKIC LIGHT. rubber, sevenil thicknesses of which arc wound on spirally undunited by india rubber cement These are placed… … It should have been mentioned iu its proper place, that eachcandle is provided with a conducting tip, as shown as c^ in fig.47, consisting of a piece of powdered plumbago and gum, com- AUTOMATIC SWITCH FOR JABLOCHKOFFS CANDLE. 97 pressed into a little cylinder about as large as a No. 18 wire,and…
Electrical engineering
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