(under subclass 681) Apparatus in which some part of the apparatus may have its position changed through 180 deg. usually for the purpose of presenting a new wearing portion or edge or for adjusting the position of some part.
(1) Note. Apparatus having a part which may be adjusted to a plurality of positions two of which may be 180 deg. apart are not included under this definition.
(2) Note. The change may be made either by adjustment or by removal and replacement of the same part.
SEE OR SEARCH THIS CLASS, SUBCLASS:
254, for an apparatus changeable by disassembly or assembly in which a tool is rearranged, the rearrangement of the tool being accomplished by a means other than or more than a reversible tool or part thereof, a reversible standard or a reversible part between a tool and standard or standard and beam.
577, for gangs of disks which are adapted to be reversed to throw the earth either to the right or to the left.
735, for an earth working element adjustable through an angle of other than 180 deg. or through a multiplicity of angles to present a distinct earth working portion to the soil.
