Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02K—DYNAMO-ELECTRIC MACHINES
H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
H02K23/66—Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the machine, e.g. with impedances or switches
Regulirung der abnehmenden Bürsten und der thätigen Stromkreise von elektrischen Maschinen bei wechsender Richtung der Antriebskraft und veränderlicher Geschwindigkeit der Antriebswellen