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ELECTRICITY
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ELECTRICAL GUIDE, NO. 1 Containing the principles of Elementary Electricity, Magnetism, Induction, Experiments, Dynamos, Electric Machinery. ELECTRICAL GUIDE, NO. 2 The construction of Dynamos, Motors, Armatures, Armature Windings, Installing of Dynamos. ELECTRICAL GUIDE, NO. 3 Electrical Instruments, Testing, Practical Management of Dynamos and Motors. ELECTRICAL GUIDE, NO. 4 Distribution Systems, Wiring, Wiring Diagrams, Sign Flashers, Storage Batteries. ELECTRICAL GUIDE, NO. 5 Principles of Alternating Currents and Alternators. ELECTRICAL GUIDE, NO. 6 Alternating Current Motors, Transformers, Converters, Rectifiers. ELECTRICAL GUIDE, NO. 7 Alternating Current Systems, Circuit Breakers, Measuring Instruments. ELECTRICAL GUIDE, NO. 8 Alternating Current Switch Boards, Wiring, Power Stations, Installation and Operation. ELECTRICAL GUIDE, NO. 9 Telephone, Telegraph, Wireless, Bells, Lighting, Railways. ELECTRICAL GUIDE, NO. 10 Modern Practical Applications of Electricity and Ready Reference Index of the 10 Numbers.
Theo. Audel & Co., Publishers.
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NEW YORK
FOOTNOTES
[1] NOTE:—The "front" end means the end at which the commutator is located. Armatures are most conveniently regarded from this end, the opposite end being known as the "back" end.
[2] NOTE—The term back pitch means the number of spaces between the two inductors of a coil. For instance, in [fig. 267], the pitch is 3; that is, there are three spaces between say inductors 1 and 4 which form part of the coil A—1—4—C. It is called the back pitch in distinction from the front or commutator pitch, which in this instance is 2.
[3] NOTE—A re-entrant winding is one in which both ends re-enter or lead back to the starting point; a closed winding.