(under the class definition) Apparatus in which an entire unearthing unit for a buried object is mounted on a frame or chassis in such fashion that it may be moved by means of either (1) an operator controlled or actuated device or (2) a surface object or ground contour-engaging guide means which shifts the unearthing unit bodily with respect to said frame in a generally horizontal plane, either pivotally or transversely to the direction of motion of said chassis across a field.
(1) Note. The usual purpose of the laterally shiftable mounting is to permit continuous alignment of the object-recovering means with a series of plants in a row.
SEE OR SEARCH THIS CLASS, SUBCLASS:
143+, for unearthing units which include a ground-supported chassis provided with means to steer or laterally change the course of the chassis.
SEE OR SEARCH CLASS
172, Earth Working, 26, for an earth-working means guided from a surface track or previously formed furrow, and subclass 667 and the subclasses there noted for an actuator for laterally adjusting an earth-working means.
