(under subclass 29) Apparatus in which the cutter is connected to supporting structure in such a manner that the cutter may be swung or otherwise shifted as a unit relative to said supporting structure in a substantially vertical direction.
(1) Note. For the definition of cutter see this class, subclass 79.
SEE OR SEARCH THIS CLASS, SUBCLASS:
72, for a machine having a cutter swivelled to operate in either a vertical or horizontal cutter tooth orbit.
75, for a machine having a cutter bodily movable in a horizontal plane which is also bodily movable in a vertical plane.
