#brush.electrical_device  conducts current between rotating and stationary parts of a generator or motor
  supertype:  #electrical_device  a device that produces or is powered by electricity
  part of:  #electric_motor  a motor that converts electricity to mechanical work
     part of:  #electric_drill__drill  a rotating power drill powered by an electric motor
     part of:  #drum_sander__electric_sander__sander__smoother  a power tool used for sanding wood; a loop of sandpaper is moved at high speed by an electric motor
     part of:  #electric_clock  a clock using a small electric motor
     part of:  #electric_fan__blower  a fan run by an electric motor
     part of:  #electric_hammer  a hammer driven by electric motor
     part of:  #electric_locomotive  a locomotive that is powered by an electric motor
     part of:  #electric_mixer  a food mixer powered by an electric motor
     part of:  #electric_refrigerator__fridge  a refrigerator in which the coolant is pumped around by an electric motor
     part of:  #electric_toothbrush  a toothbrush with an electric motor in the handle that vibrates the head of the brush
     part of:  #electric_typewriter  a typewriter powered by an electric motor
     part of:  #self-starter  an electric starting motor that automatically starts an internal-combustion engine
        part of:  #internal-combustion_engine__ICE  a heat engine in which combustion occurs inside the engine rather than in a separate furnace; heat expands a gas that either moves a piston or turns a gas turbine
           part of:  #motorboat__powerboat  a boat propelled by an internal-combustion engine
           part of:  #motor_vehicle__motorvehicle__automotive_vehicle  a self-propelled wheeled vehicle that does not run on rails
     part of:  #trolleybus__trolley_coach__trolleycoach__trackless_trolley  a passenger bus with an electric motor that draws power from overhead wires
  part of:  #generator  engine that converts mechanical energy into electrical energy by electromagnetic induction

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