(under subclass 177) Abrading machine having detailed mechanisms for transmitting or varying the rotary drive motion to the abrading tool.
(1) Note. Mechanism for varying the rotational speed of the tool in accordance with the diameter of the tool are here classified.
(2) Note. This subclass does not include significant parts of the machine other than the tool drive, such as the tool or work feeds, if provided for in a preceding subclass.
(3) Note. A motor is classified in the appropriate motor classes, but the combination of a motor with a tool rotating mechanism is here classified when the motor class does not provide for the combination.
SEE OR SEARCH THIS CLASS, SUBCLASS:
241+, for an abrading tool which is mounted on or driven from another machine or device which has parts thereof that are to be abraded without removal from the machine or device.
SEE OR SEARCH CLASS
29, Metal Working, 64, for a speed controlling mechanism for a combined metal working machine.
74, Machine Element or Mechanism,
325+, for speed change gearing and subclasses 412+ for a gear train.
388, Electricity: Motor Control Systems,
800+, for a single motor running-speed control system with
feedback or subclasses 825+ for a single motor running-speed control system without feedback.
464, Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts, for a flexible coupling between a torque transmitting shaft and a driven member.
474, Endless Belt Power Transmission Systems or Components, for power transmission via an endless belt including control for varying speed ratio.
