(under the class definition) Apparatus comprising a vehicle,
an earth working device trailing behind the vehicle, and an actuator on the vehicle for moving parts of the earth working device relative to each other while at least some part of the device remains on the ground.
(1) Note. For the meaning of "actuator" see the class definition.
(2) Note. A relative movement of parts incident to lifting the device off the ground for transport is not included. Also relative movement which results merely from gravity and a lost motion connection is not included, as where an implement frame is lifted and a gauge wheel thereupon drops.
(3) Note. Merely rocking an earth working element about a wheel axis is not included. See subclasses 321 and 322+ for such devices.
(4) Note. The parts which are usually relatively moved are an earth working element with respect to the implement frame or a gauge wheel with respect to the implement frame.