US PATENT CLASS 82
Class Notes


Current as of: June, 1999
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82 /   HD   TURNING



DEFINITION

Classification: 82/

(1) This class includes inventions for producing articles of predetermined section, usually circular, by means of cutters brought into engagement with the exterior of a rotating work-piece or by means of cutters revolving circumferentially around and in engagement with that portion of the work-piece to be shaped. It contains mainly metal-working machines, but is not confined thereto, including all such mechanisms of the above-named structure and function as are not specifically classified elsewhere.

(2) This class is also the generic class for the subject matter of the following subclass: Centerers (see References to the Current Class, below)

(3) This class includes severing or cutting (off and/or out) of work of predetermined section (and/or size) by cutting movement(s) of tool and work including (1) relative rotation of either or both about an axis passing through the work and (2) relative translation of either or both substantially normal or parallel to said axis during cutting. (see References to the Current Class, below).

SEE OR SEARCH THIS CLASS, SUBCLASS:

46, see the (3) Note relating to (3) above.

170, for Centerers.

REFERENCES TO OTHER CLASSES

SEE OR SEARCH CLASS 29, Metal Working,

2.1+, for bias cutting or tubular stock, subclass 20.1 for spiral cutting of flat stock.

30, Cutlery, appropriate subclasses for severing implements and hand tools.

33, Geometrical Instruments,

21.1+, for means to scribe, score or scratch lines on curved surfaces.

69, Leather Manufactures,

9+, for skiving or splitting of leather.

79, Button Making,

7+,.

125, Stone Working.

142, Wood Turning.

157, Wheelwright Machines, 13, for apparatus and processes for treating the outer periphery of a rubber tire casing by a slitting or machine operation which art (in the absence of this subclass) would ordinarily be classified in accord with the particular operation. (The treating of a rubber casing by abrading is classified in Class 451, Abrading.

173, Tool Driving or Impacting, appropriate subclass for subject matter directed to driving or impacting a tool, when such subject matter includes combined features peculiar to tool driving, but which does not include features limiting the subject matter to a specific tool art, such as specific shape of the work contacting portion of a tool, related tools, or an opposed work support. Class 82 has not been cleared as to subject matter in conflict with this line.

408, Cutting by Use of Rotating Axially Moving Tool, for cutting of that class type. The cutting of rotating work, including boring and drilling, is to be found in this class (Class 82). The cutting of a rod or tube by a tool turning about an axis coextensive with the central axis of the rod or tube wherein the tool also moves radially during operation will also be found in this class.

409, Gear Cutting, Milling, or Planing, appropriate subclasses for cutting to shape in general;

1+, for forming teeth on a circular gear; and subclass 64 for milling a rotating workpiece, generally.

451, Abrading, for grinding, generally, including subdividing a workpiece by abrading, especially search

435+, for an abrading device intended to be attached to a lathe.

470, Threaded, Headed Fastener, or Washer Making: Process and Apparatus,

8+, and 57+ for methods and machines for the cutting of screw threads by a tool that moves in a way other than rotatably and axially relative to a workpiece during operation or by a tool acting on rotating work.

483, Tool Changing,

17+, for a work turning machine tool combined with a means to transfer a tool to or from a tool support or storage means.