TABLE OF CONTENTS. 
PART 1. 
PAGES. 
IntRopDucTION: Branches of Science Involved in Dynamo 
Design—General Method to be Followed—Parts -of 
Dynamo or Motor—Forms in which the Problem pre- 
sents Itselfi—Method of Motor Calculation—Forms of 
Armature—Armature Cores—Effective Cross-Section 
of Armature Core—Advantages and Disadvantages of 
PU PMIRALUITCS, .. 2... sve eda sees hea e cence 1-8 
Piciaeniacy CALCULATIONS OF ARMATURE: Peripheral 
Speed—Approximate Cooling Surface—Determination 
of Armature Diameter by Cooling Surface.......... 9-16 
Tables of Dimension of Modern Dynamos........ 16-24 
Specific Cross-Section of Armatures Conductors— 
Data for Armature Windings—A proximate Size of Ar- 
SMEEDNTEAUICLOTS ,. 5.5 «so sca ors welt wabueuie cease aes « 24-29 
Finat CaLcuLaTIONs OF ARMATURE: | Number of Inductors 
on Armature—Arrangement of Inductors on Smooth- 
Core Armature—Arrangement of Wires on Toothed 
STO —EXAMPICS. «5 cndddes mds c cc cisecseccave 31-37 
Length of Active Armature Inductor—Field Density— 
Length of Armature Core—Preliminary Determination 
of Flux in Armature—Radial Depth of Armature 
Core—Total Length of Armature Conductor—Arma- 
ture Resistance—Examples..............eccceeeee 37-48 
Check on Armature Calculation—Power Consumed in 
Armature Winding—Power Lost by Hysteresis—Power 
Lost by Eddy Currents—Specific Power Loss in Ar- 
mature—Temperature Increase of Armature—Circum- 
ferential Current Density of Armature—Examples... 48-60 
1x 
