(under subclass 429) Apparatus wherein the tool is directly moved by a helically threaded member threadedly connected to the tool or to an element that carries the tool and partakes of all its movements.
SEE OR SEARCH THIS CLASS, SUBCLASS:
248, for disclosure of "screw-down" mechanism in a roller-couple.
481.3+, for a threaded means to position or retain a tool face to a support or holder therefor.
SEE OR SEARCH CLASS
83, Cutting,
631, for disclosure of screw-actuated cutting tool.
