(under the class definition) Lathe specially adapted for producing an engine component structured to transmit rotary motion.
(1) Note. This subclass generally provides for lathes used in turning various parts of an automative crankshaft or crank disk, e.g., concentrically turning the main journal or eccentrically turning the crank pin portions. This subclass similarly provides for lathes having off-set revolving tools allowing for the turning of stationary crank pins which are eccentric to the lathe center line.
(2) Note. This subclass also includes only fully-organized power-driven machines whereas portable crankshaft pin turners are provided for in 107 below.