(under the class definition) Apparatus in which the unearthing apparatus includes the frame of a vehicle, said frame having an excavating and/or separating means rigidly connected thereto, and which frame is provided with a means for varying its vertical position relative to the ground whereby the working depth of said excavating and/or separating means may be selectively changed from one position to another.
(1) Note. The frame is generally provided with a crank axle, gage wheel or runner means which is movable relative to the frame in order to position said frame at different heights above the ground.
SEE OR SEARCH THIS CLASS, SUBCLASS:
109, and 141, for other types of devices for adjusting an unearthing unit either with or relative to a vehicle frame.
SEE OR SEARCH CLASS
172, Earth Working, 395+, for an earth working implement with a ground support vertically adjustable relative to the supporting frame.
280, Land Vehicles,
6.15+, for a land vehicle of general utility including means, interposed between the vehicle body, chassis, or frame and running gear thereof, for altering height or levelness of the vehicle body, chassis, or frame; or subclasses 43+ for a land vehicle of general utility having vertically adjustable wheels for altering a dimension of the vehicle or a part thereof.
