(under the class definition) Apparatus including a selectively operable mechanism connected to a part of a means for recovering buried objects mounted on a chassis in order to (1) raise or lower said part to adjustably position it with respect to said frame or (2) to adjustably vary the inclination or attitude of said part with respect to the earth's surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
44, for power-operated means to adjust a part of an unearthing apparatus.
109, for articulated vehicle frames whose sections relatively pivot to change the position of an unearthing means.
110, for diggers and conveyors which are adjustable as a unit relative to a supporting chassis.
139, for unearthing units which are fixed or vertically shiftable vehicle frames. SEE OR SEARCH CLASS
172, Earth Working,
452+, and the subclasses there noted, for an actuator adapted to lift an earth working implement for transport on a wheeled frame, and subclass 668 for an actuator adapted to move an earth working implement vertically with respect to a wheeled frame.
