(under subclass 35) Apparatus in which an earth working element is driven about an axis which is parallel to the ground and is additionally located in a plane which is generally parallel to the direction of travel of the earth working element over the ground.
(1) Note. This subclass includes those earth working elements which oscillate about a longitudinal axis generally back and forth across a crop row, for example, for thinning out or chopping cotton plants.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5+, for "cotton chopper" type tools which may be driven to oscillate or rotate about a horizontal longitudinal axis and in which the operation of said tool is further under the control of a sensing means.
58, for a plurality of laterally spaced tools each driven about a longitudinal axis.
63+, especially subclasses 70 and 73 for driven tools which may move about a longitudinal axis and which in addition, are combined with one or more non-driven tools.
SEE OR SEARCH CLASS 171, Unearthing Plants or Buried Objects,
97, for a rotary digger driven about a horizontal
longitudinal axis.
299, Mining or In Situ Disintegration of Hard Material,
39.1+, for a floor working hard material disintegrating machine having a driven rotary cutter.
