(under subclass 44) Subject matter where the generator has one or more pairs of load brushes and an auxiliary (or third) brush intermediately positioned between the load brushes with one of the generator windings (field or armature) or a portion thereof or a circuit connected between the auxiliary brush and one load brush.
(1) Note. This subclass includes systems having a third brush type generator with the field winding or a field winding connected between the auxiliary (or third) brush and one load brush. Also included are generator systems having the armature winding or a portion thereof connected to a short circuit between the auxiliary (or third brush) and one load brush.
SEE OR SEARCH THIS CLASS, SUBCLASS:
54+, for generator systems within the class definition where the generator control includes means to adjust the position of the generator brushes.
91+, for generator systems within the class definition where the generator is controlled by short circuiting the armature winding or a portion thereof, see indented subclass 92 where the generator is provided with a pair of auxiliary brushes and the short circuit is between the auxiliary brushes (cross-field generators).
SEE OR SEARCH CLASS
307, Electrical Transmission or Interconnection Systems, 9.1+, for third brush generators used in electric systems on vehicles.
310, Electrical Generator or Motor Structure,
148, for dynamoelectric machines having a third brush or additional sets of brushes.
320, Electricity: Battery or Capacitor Charging or Discharging, appropriate subclasses, particularly
123, for a battery or capacitor charging or discharging
