| 310 / | HD | ELECTRICAL GENERATOR OR MOTOR STRUCTURE |
|
| 10 | DF | DYNAMOELECTRIC {5} |
| 40 R | DF | .~ Rotary {28} |
| 179 | DF | .~.~ Windings and core structure {7} |
| 180 |  | .~.~.~ Field or excitation windings or structure {9} |
| 181 | DF | .~.~.~.~> Combined permanent and electromagnet |
| 182 | DF | .~.~.~.~> With short-circuited winding or conductor {1} |
| 184 | DF | .~.~.~.~> Plural field windings {4} |
| 189 | DF | .~.~.~.~> Variable length or tapped winding |
| 190 | DF | .~.~.~.~> Magnetic shunts for shifting field flux |
| 191 | DF | .~.~.~.~> Adjustable magnetic structure |
| 192 | DF | .~.~.~.~> Nonmagnetic inserts or air gaps |
| 193 | DF | .~.~.~.~> Nonuniform core cross section |
| 194 | DF | .~.~.~.~> Coil supports and spools |