(under subclass 236) Subject matter wherein the speed control means includes means for simultaneously controlling the rotation of two or more shafts in the same or different mechanisms.
SEE OR SEARCH THIS CLASS, SUBCLASS:
242, for speed comparison means which do not require synchronization means but may disclose such.
SEE OR SEARCH CLASS
74, Machine Element or Mechanism,
395+, for systems for synchronizing the rotary motion of a plurality of shafts where adjustable gearing is utilized to control the rotation of at least one of the shafts.
and especially 171, for synchronizing plural expansible chamber motors.
318, Electricity: Motive Power Systems,
41, for plural electric motor systems having electrical synchronizing interconnections for maintaining synchronization between the motors, subclasses 68+ for plural electric motor systems with means for controlling the running speed of one motor relative to the speed of another motor including such systems for maintaining the motors in synchronism, and subclass 85 for the miscellaneous plural electric motor systems with synchronizing or phasing control for the motors.
340, Communications: Electrical,
681, for a machine synchronization responsive indicating device; subclass 318 for miscellaneous signalling systems having synchronized distributors at the transmitter and receiver.
352, Optics: Motion Pictures,
12+, for motion picture apparatus combined with sound recording or reproducing apparatus and including means for synchronizing the two.
370, Multiplex Communications,
303+, for multiplexing systems having a rotary distributor.
375, Pulse or Digital Communications,
354+, for synchronization systems.
416, Fluid Reaction Surfaces (i.e., Impellers), 34, for plural impeller having synchronizing means.
