(under the class definition) Subject matter in which means, other than the motor being controlled and its electrical circuits, are provided for producing a mechanical turning effort to the rotor element of the motor during the starting and/or the accelerating period of operation of the motor, and which means is deenergized, disconnected, or otherwise incapacitated to assist in actuating the motor under running-speed conditions.
(1) Note. This subclass is designed to include those devices which are employed to start an electric motor which is inherently not-self-starting and also to include those which assist the motor in attaining running speed conditions in order to reduce the heavy demand of electric current required to bring a motor up to running speed when operating without starting assistance. The device must be distinct from the motor and produce a turning effort independently of the magnetic turning effort produced by the motor itself. The device can be structurally united with motor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
1+, for motor systems which have an electric motor combined with a nonmotor driving means.
45+, for electric motor systems having plural motor mechanically connected or coupled in a fixed predetermined ratio of movement during normal running periods.
SEE OR SEARCH CLASS
74, Machine Element or Mechanism, 6+, for mechanical devices, per se, for starting engines in general.
91, Motors: Expansible Chamber Type,
53, for expansible chamber motors of the engine rotating or starting type.
123, Internal-Combustion Engines,
179.1+, for starting devices for internal combustion engines.
290, Prime-Mover Dynamo Plants,
10+, 18+, 22+, 27, 28, 30, 31+, 36+, 38, 46, 47, and 48 for dynamo-electric machines used as starting motors for prime-mover dynamo plants.
