(under subclass 79.1) Cutter tooth or tooth head in which at least two of the supporting means operate at different speeds or translate in different directions.
(1) Note. The relatively movable parts may comprise separate cutter teeth.
(2) Note. Relative movement between the parts during normal cutting operation must be specifically described for classification under this definition. For example, merely connecting a cutter element to a cutter head by means of resiliently biased retaining means is not included.
SEE OR SEARCH THIS CLASS, SUBCLASS:
59+, for a mining machine having relatively driven cutters, in which the drive follows a cutter into an opening formed by a rotary cutter head having advance direction coincident to rotary axis.
71, for a mining machine having relative bodily movable cutters.
80.1, for a tool having relatively adjustable head. 82.1, for a chain-type cutter head.
107, for a rotatable bit mounting including resiliently biased retaining means
109, for a planar bit mounting including resiliently biased retaining means.
