Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 250
Fio. 220. Electric Pumps. 251 Fig. 217, on page 247. shows n four-pole generator designed torun by a belt or ilircclly connected to an engine. The fiveparts named, as the principal parts of a dynamo, are all shownin the figure. The machine is arranged ready to be bolted tot! c floor. Fig. 219 on… … Fig 221. Fig. 220, are united to the arms of the commutator bars. Whenthe armature is finished, as shown, the wire forms an unbrokencircuit. Fig. 221 is intended to represent another form of armature,but the principle upon which it operates, is the same, as the
Hydraulic machinery · Pumping machinery
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