Vehicle mount with obstacle responsive trip, or yieldable tool (e.g., brush):
(under subclass 196) Apparatus wherein either (a) means is provided for attaching an excavating implement to a vehicle, including means permitting the implement to shift with respect to the vehicle when it contacts an obstacle or (b) an excavating implement itself includes a portion which yields when it contacts an obstacle.
SEE OR SEARCH CLASS
56, Harvesters,
10.4, for a harvester having a cutter unit which retracts in response to an obstruction.
172, Earth Working,
261+, for an earthworking tool which retracts in response to an overload.