(under the class definition) Apparatus including a specific means forming a part of a power supply system to move a portion of a device which removes and separates buried objects from the earth.
(1) Note. Included here are devices having means to effect a declutching of a drive to an unearthing apparatus in response to a vertical or lateral shifting of such apparatus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
9, for power-driven means for an unearthing unit part which are adapted to yield or slip when overloaded.
44, for power-driven means to adjust or selectively position a digger unit part.
108, for details of a drive from a traction wheel to a digger unit part.
SEE OR SEARCH CLASS 172, Earth Working,
125, for details of a drive for a driven earth working tool.
