310 / | HD | ELECTRICAL GENERATOR OR MOTOR STRUCTURE |
10 | DF | DYNAMOELECTRIC {5} |
40 R | DF | .~ Rotary {28} |
219 | .~.~ Current collectors {7} | |
220 | DF | .~.~.~> Spark-reduction {3} |
227 | DF | .~.~.~> With cooling |
228 | DF | .~.~.~> With cleaning, lubricating, resurfacing or repairing |
229 | DF | .~.~.~> Brush-traversing |
230 | DF | .~.~.~> Circumferential brush shifting on reversal |
231 | DF | .~.~.~> Rotary structure {2} |
238 | DF | .~.~.~> Fixed structure {2} |