(under subclass 34) Subject matter in which means are provided for controlling the magnitude of the load which is driven or actuated by the motors, or for otherwise controlling the magnitude or amount of work done by the motors; or for controlling the division of load or current between the motors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5, and 8, for plural motor systems having plural motors employed to drive particular load devices, the system including motor load control means particularly in subclass 8 where plural motors drive an ultimate load device through a differential gearing whereby a predetermined ratio of load may be effected on the motors.
7, for plural motor systems where the relative torque on the motors may be controlled to effect a predetermined tension in a material driven or conveyed by the motors.
39, for plural motor systems of the work-and-feed-motor combination type where control of feed-motor may affect load on the work-motor.
41, for plural motor systems where the motors have electrical synchronizing interconnections in which the interconnection may affect the relative loads on the several motors.
45+, for plural motor systems where the armature or work output members of the motors are mechanically interconnected.
52, for plural motor systems having racing or slipping control which may affect the load on or between the several motors.
68+, for plural motor systems having the relative speed control between motors which may affect the load on or between the motors.
88, for plural motor systems having control of the load or current division between several motors during dynamic braking of motors.
101, for mere starting and/or stopping of the motors,
430+, for single motor systems having motor load control during the starting or stopping.
432, for single motor systems having means for maintaining a substantially constant load upon the motor.
434, for single motor systems having means for maintaining the load upon the motor from exceeding predetermined limits or going below a predetermined limit.
474, for single motor systems having automatic control of the motor in response to load conditions.
