(under subclass 35) Apparatus in which a driven earth working element is mounted in a frame which is provided with a claimed ground- engaging supporting wheel and details of a power transmitting means from the wheel to the earth working element are set out in the claims.
(1) Note. Mere mention of a transmission between the wheel and the earth working element or a broad statement of the type of transmission (e.g., gearing) have not been considered to involve detailed structure which would require classification under this definition since traction drives of this type are very common in the art.
(2) Note. The wheel may itself be driven by power applied to it or may be a freely rolling wheel. In the case of a driven wheel the wheel must be interposed in the path of power from the source to the earth working element to come under this definition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
44, for "rod weeder" type implements which may be positively driven from a ground wheel on the weeder supporting frame.
61+, for earth working elements which may be intermittently driven from a rolling or driven ground wheel, such intermittent drive generally being from several pins or other projections which are spaced about the periphery of the wheel or from mutilated gears or cam operated drive clutches which are operatively associated with the wheel.
69, and the Note thereunder for earth working elements which are driven by nondriven earth working elements as the latter roll over the ground. 103+, for earth working elements which may be driven from a rolling or driven ground wheel and which include in the drive transmission from such wheel an overload relief or clutch means.
SEE OR SEARCH CLASS
171, Unearthing Plants or Buried Objects,
108, for traction wheel drive for an unearthing unit part.
180, Motor Vehicles,
337+, for transmission mechanisms for driven ground wheels.
414, Material or Article Handling,
439+, for a wheel operated motion or draft responsive load handler.
