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SECTION I - CLASS DEFINITION

Class 83 is the residual locus of patents directed to methods and machines for penetrating material, without substantial reshaping flow of such material, by means of (1) a solid tool, or fluid current, either of which applies mechanical deforming force to the material by direct physical contact therewith, the fluid current forcing the material against a solid tool whose edge defines the line of cut; (2) a heated solid tool which directly engages the material (to effect penetration thereof by melting, or by transmission of mechanical energy, or both); or (3) opposed, controlled fluid currents.

(A) Specifically (as well as implicitly) excluded, is a patent to apparatus or process for cutting by the transmission of heat to the work material from a hot gas, such as flame cutting (for the location of which, see Lines With Other Classes, subsection A, Relationship to Other Classes Including, per se, Cutting, Severing, or Incising, paragraph 8, Classes related to flame or other heat-cutting).

(B) While a disclosure of the production of a reshaping flow, in the operation of its apparatus or accomplishment of its method, will preclude original placement of a patent in this class, a disclosure of a flow of the material which is inherent in, or purely incidental to, the act of cutting will not operate as such a bar. The following types of factual situations illustrate the rule:

(1) A disclosure that the work material flows, due to melting, will not preclude placement herein of the patent so disclosing; but the further teach-that the flow accomplishes a significant or definable reshaping of the work beyond that inherent in the penetration there-of will bar such placement. Exemplary of such reshaping is the formation of a rim or bead around a hole coincident with the penetration which forms the hole.

(2) A patent to a cutting machine or process employing a tool which, as disclosed, creates a flow of the material while penetrating the material only partially (that is, it fails to reach the surface opposite the surface of entry) will be excluded from this class only if there is a teaching from which it can be fairly inferred that there is no severance of the surface fibres of the work, but rather that the material is compacted, creased, forged or otherwise plastic worked, thus indicating that the reshaping is not an incident of a cutting operation. A disclosure that a "cutting" tool penetrates only partially through tacky, flowable, or green, plastic work material (such as soft synthetic "plastics", food dough, etc.) will be considered to supply such a teaching, unless (by the same disclosure) the work attains its flowable or soft condition by the action of the cutting tool (e.g., a hot tool). If such tool is disclosed as softening or plasticizing the work, a patent directed to same would be proper for this class (83).

SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS

SCOPE OF CLASS 83

Class 83 is an elemental or basic class. That is, its subject matter is restricted (so far as possible) to means for, or steps of, accomplishing the following functions: cutting something (the "work"); or cutting, and handling the work to be cut; or cutting, and handling the product of the cutting operation. As a result, the great preponderance of patents directed to cutting combined with some other work treatment will be found in the respective class of the other treatment or in some more general class of combined operations, such as Class 156 or Class 29 (particularly subclasses 33+ and 566+). The few exceptions to this general statement are set forth explicitly in section II, Lines With Other Classes, subsection B, Relationship to Other Treating Classes (which appears later in this class definition).

The class does not act as the sole repository for patents directed to cutting machines or even to cutting machines of the functional types signalized in the subclasses of the class. Based upon past development of the system of patent classification, such patents are to be found in many classes, their disposition depending mainly upon the nature of the material disclosed as constituting work for the cutting operation. A listing of such classes is included in Lines With Other Classes, subsection A, Relationship to Other Classes Including, per se, Cutting, Severing, or Incising (which appears later in this class definition). With respect to such classes, Class 83 is residual.

As an incident of such residual nature, this class will not receive for original placement a patent disclosing alternative embodiments (claimed generically, or with a specific claim to each), one of a type proper for this class and one of a type related to another cutting class or subclass. Nor will it so receive a patent disclosing two purposes for a claimed cutting machine, one general or related to the art of this class (as shearing metal) and another specific to another cutting class or subclass (as, for instance, cutting plastic block or earthenware; or nail making). In both such cases, the original patent will be placed in the other cutting class or subclass.

A. RELATIONSHIP TO OTHER CLASSES INCLUDING, PER SE, CUTTING, SEVERING, OR INCISING

The following enumeration and discussion of such classes, although including the loci of patents relating to many and varied types of cutting, does not purport to be exhaustive:

1. The class of cutting implements, Class 30.

Other than as governed by the exception set forth immediately following description 4 below, a patent is deemed to be directed to a cutting implement, and thus to be placeable originally in Class 30, if its claimed subject matter fits any one of following descriptions:

a. A cutting device which as an entirety is disclosed to be supported or held against the force of gravity by the operator during cutting.

b. A cutting device which as an entirety is disclosed as deriving from the work a substantial amount of its support against gravity (i.e., work-supported) during cutting, including a cutting device which is disclosed as being guided and supported during cutting by a member which is itself supported on the work (i) a cutting device which is disclosed as having a loose, work supported tool and powered means for driving the tool into the work, will be placed in Class 83; (ii) a cutting device which includes means to affix, hold, or positively locate a portion of the device relative to the work, for support of the device against gravity, and means to guide movement of the cutter relative to the work-affixed or work-located portion, will be placed in Class 83; (iii) a cutting device which includes (1) means to position or positively locate a portion of the device relative to the work in such a manner that said portion remains in said relative position during cutting and (2) means to guide the cutter in predetermined path with respect to said portion, will be placed in Class 83.

c. A cutting device which is disclosed as being capable of movement in a random path instantaneously under the control of the operator during cutting, including a cutter suspended or supported near the work; e.g., a cutter mounted at one end of a flexible shaft whose other end is anchored to a table, or a cutter suspended from a trolley, or a cutter mounted on a steerable vehicle.

d. A cutting device of the type referred to in the preceding paragraph in combination with a work support or work holder wherein neither the cutting tool itself nor the tool support is modified or constructed to either constrain the motion of the cutter or to guide it in a predetermined path with respect to the work support or work holder.

However, a patent drawn to a device including a cutting tool and means to support a reserve stock of the work in which the work supply is in the form of a web or strand wrapped upon itself and the supply is supported for rotation upon an axis will be placed originally in this class (83) even though it fits one or more of the above listed descriptions.

A patent for the combination of a cutting device meeting any of the criteria set forth above and a work holder provided for in Class 269 will be placed originally in Class 30, although a patent for the work holder, per se, will be placed in Class 269.

A patent which only claims a cutting tool nominally, that is, in which the claimed structure does not sufficiently define a cutting tool substantially in its ultimate use form, or elements, adjuncts, or materials structurally limited to such use, is regarded as proper subject matter for original placement in Class 428, Stock Material or Miscellaneous Articles.

2. The class of severing by tearing or breaking.

Class 225 includes patents for process or apparatus for severing determinate portions of work material by causing failure of the work under tension at the point or line of separation, effected by moving one part of the work relative to another part. In such devices or processes, the tension is applied by stretching, bending, twisting, manually or mechanically grasping the work on one side of a fixed edge and forcing it against the edge, or moving a breaking or tearing tool and supported work material relative to each other. Also included in the reference class are tearing or breaking devices combined with any other type of severing means.

For a detailed statement of the distinction between Classes 83 and 225, see the (1) Note and (2) Note under section I, Class Definition, subsection B, Breaking or Tearing, of Class 225.

3. The class of comminuting.

Class 241, Solid Material Comminution or Disintegration, includes original patents for process or apparatus directed to the cutting or severing of solid material into a number of smaller solid masses, which smaller masses do not have imparted to them any desired or significant shape. As between Classes 83 and 241, the provision of means for (or steps of) retaining an original dimension of the work in the cut up product will exclude a patent for the apparatus (or process) from Class 241.

4. The class of selective cutting.

The art of selective cutting is collected in Class 234, Selective Cutting (e.g., Punching). The distinction between a selective cutting device or a method of selective cutting (either of which is proper for Class 234) and a cutting means or method of this class (83) is set forth in the following statement:

Class 234 is superior to Class 83, and takes or contains original patents directed to cutting devices as defined in Class 83 which are further distinguished by the claimed inclusion of a plurality of cutting tool pairs and an actuating power train for each pair (one power train may be common to all), so that power may be delivered to any or all pairs for any cutting cycle, and wherein each and all of the tool pairs assembled in the machine are constantly available to be chosen for cutting or noncutting (in any desired number, from one to the total number available) by (a) a pattern (b) combinational coding means [defined in section III, Glossary, of the class definition of Class 234, Selective Cutting (e.g., Punching)], or (c) means not a part of the tool actuating power train and which does not partake of all the movements of either tool or the pair; which pattern or means conditions which pair so chosen to (a) enable, or (b) prevent, a cutting operation thereby when its driving power train is actuated.

The distinction expressed above is intended to exclude from Class 234 patents for devices wherein, for example, (a) there is no distinct conditioning means [see U.S. Patent No. 682,197 (subclass 225 of Class 83) to Hollerith: each punch is selected and actuated by its individual key-connected linkage]; or (b) less than the whole number of tools is constantly available [see U.S. Patent No. 878,775 (subclass 552 of Class 83) to Colbert: a turret of tools]; or (c) the tool conditioning means move bodily with their associated tools [see U.S. Patent No. 746,625 (subclass 559 of Class 83) to Allen: manipulable locking pins are fixed to the tools]; and is intended to include, for example, devices wherein a tool-actuating power train common to all tools is tripped, manually or automatically, after operation of selected conditioning means [see U.S. Patent No. 1,110,261 (234/111) to Hollerith: initial depression of a key conditions one punch for actuation, and further depression of the key trips a common punch hammer or actuator], and devices wherein a plurality of combinations of less than the total number of tools are actuated or conditioned for actuation, by coding means (see U.S. Patent No. 422,728 to Clark: a turret of coded interposers is positionable to select groups of tools from an array thereof).

5. The class of mechanical manufacturing (metal working).

The class of reference (29, Metal Working) includes patents for machines for bias cutting of tubular stock (subclasses 2.1+); shredding metal; e.g., metal wool making (subclasses 4.51+); spiral cutting of flat stock (subclass 20.1); and filing (subclass 76.1). Patents for files and rasps are found in subclasses 78+.

6. The class of presses.

The class of reference, (100, Presses) includes patents for reciprocating press structures, which (as both claimed and disclosed) may perform, alternatively, a cutting operation or some other forming operation (such as forging, drawing, bending), as well as patents containing such equivocal disclosures of forming devices that the type of forming operation such devices are intended to perform cannot be ascertained accurately.

7. The class of abrading.

With few exceptions (such as those found in Class 132, Toilet), patents claiming a cutting means, or a step involving the use of a cutting means, which (as disclosed) is composed of crystalline material-removing particles, are placed originally in Class 451, Abrading.

8. Classes related to flame or other heat-cutting.

In addition to the classes enumerated below, it will be noted that subclasses 18.1+ of Class 33, Geometrical Instruments, contained original patents for flame-cutting scribers, and that Class 65, Glass Manufacturing, subclass 113, provides for glass preform treating including flame severing, and subclasses 269+ provides for glassworking means including flame severing means.

a. The class of metal treatment.

Subclasses 194+ of Class 148, Metal Treatment, includes original patents for methods of flame-cutting metals.

b. The class of metallurgical apparatus.

Original patents for flame-cutting apparatus are collected in subclasses 48+ of Class 266, Metallurgical Apparatus. In addition, subclass 271 of Class 266 contains original patents for devices used for drilling or cutting taphole plugs of metallurgical furnaces.

c. The class of combustion.

Class 431, Combustion, contains original patents for a torch comprising a fluid fuel distributor and a feature which specializes it for producing a flame; e.g., pilot burner etc., or which depends on the heat generated by the flame to perform its function; e.g., vaporize fuel.

d. The class of electric heating.

Class 219, Electric Heating, includes original patents directed to methods or apparatus effective to sever, part, or burn or melt away, a portion of a workpiece without using a solid tool which engages and penetrates the work. Examples will be found in subclasses 68+.

e. The class of fluid sprinkling, spraying, and diffusing.

Class 239, Fluid Sprinkling, Spraying, and Diffusing, includes original patents for fluid distributing nozzles or tips, per se, even though disclosed as burners.

9. Classes related to the cutting of metal.

In addition to the classes enumerated herein, attention is invited to the discussion of patents directed to improvements in the flame- or heat-cutting arts, contained in paragraph H, above.

a. The class of nail making.

Patents directed to apparatus for cutting nails to shape are found as originals in subclasses 157+ and 192+ of Class 470, Threaded, Headed Fastener, or Washer Making: Process and Apparatus.

b. The class of chain, staple, and horseshoe making.

Cutting machines disclosed as being useful in making such products are the subject of patents in subclass 29 of Class 59, Chain, Staple, and Horseshoe Making.

c. The class of tool making.

A patent for a cutting machine or process employed in the manufacture of a tool will be found, as an original copy, in Class 76, Metal Tools and Implements, Making, (e.g., in subclasses 12+, 28, 29, 30, 31+, 37+, 82+).

d. The class of wireworking.

Patents for methods of, or means for, cutting wire will be found, as original copies, in many subclasses of Class 140, Wireworking, particularly subclasses 58+, 66, and 67.

e. The class of type casting.

Original copies of patents for machines or processes for cutting cast type are included in subclass 59 of Class 199, Type Casting.

f. A patent directed to cutting metal (or other hard substance whose cutting is not the subject of a subclass is some other class) will be placed originally in one of the following classes, if not earlier placed on the basis of product (e.g., nails) according to the criteria expressed:

i. Class 408, Cutting by Use of Rotating Axially Moving Tool, will take original patents to machines for making a hole, reducing the outside of a round workpiece, trepanning, screw threading either the outside or the inside of a tubular workpiece, as well as any other cutting operation by use of a tool turning about an axis and moving along that axis toward a workpiece; provided, there is no additional motion of the operating tool. Class 408 is intended to ultimately include all cutting in the manner provided in the definition of that class; however, not all classes have now been screened for art proper for Class 408. Included among the classes likely to include patents proper for Class 408 that have not been screened are Classes 82, 142, and 451.

ii. Class 82, Turning. Original patents for devices or processes for severing or cutting off work, wherein the cutting movements of tool and work relative to each other include (1) rotation of either or both about an axis passing through the work (except as provided for in Class 408) and (2) relative translation substantially normal to said axis, are in Class 82 as meeting the general concepts of "turning".

iii. Class 409, Gear Cutting, Milling, or Planing, includes original patents for a process and apparatus for shaping material, usually metal, by means of (1) a toothed rotary cutter to produce an article of desired configuration or (2) a nonrotary tool for making a series of comparatively light cuts or a series of such tools, between which tool(s) and the workpiece there is a relative reciprocatory movement in substantially a straight line. Generally, Class 409 is broad enough to take any patent for shaping by means of a toothed rotary cutter not provided for in Class 77 or Class 82. Included in Class 409, subclasses 288+, is a patent for a single edge cutter device which shapes work (e.g., grooving, shaving, slotting, or flash trimming) by means of relative movement between tool and work in one or more passes. See (1) Note under Class 409, subclass 288.

10. Classes related to the cutting of wood.

a. The class of coopering.

Patents for machines adapted to cut barrels, or staves therefor, will be found as original copies in many subclasses of Class 147.

b. Other patents whose claimed method or apparatus is disclosed as being directed to the cutting of wood will be placed originally in the proper woodworking class; Class 142, Wood Turning; Class 144, Woodworking (including pencil sharpening in subclasses 28.1+); or Class 30, Cutlery (including pencil sharpening implements in subclasses 451+); except for patents directed to veneer-web or -sheet clippers (including those intended to cut a layer to be laminated) which are placed in this class (83).

11. Classes related (in whole or in part) to cutting the earth or the fruits thereof in situ, or well tubing imbedded in the earth.

A patent directed to a machine or process for accomplishing any one of the above enumerated purposes will be placed in the appropriate earth exploring or exploiting, or agricultural, class. A list (not intended as exhaustive) of such classes follows: 37, Excavating; 47, Plant Husbandry; 56, Harvesters; 111, Planting; 166, Wells; 171, Unearthing Plants or Buried Objects; 172, Earth Working (e.g., subclasses 13-22); 175, Boring or Penetrating the Earth; 299, Mining or In Situ Disintegration of Hard Material.

12. Classes related to the cutting of plastic material, stone, or hard glass.

A patent directed to apparatus for cutting plastic, green ceramic or cementitious preformed material will be found as an original in Class 83 unless shaping other than by cutting is involved. See Class 65, Glass Manufacturing, appropriate subclasses for a process of, or apparatus for, cutting or scoring glass combined with glassworking or treating, and subclass 133 for a process of severing a stream of molten glass and also see the collection of search notes under subclasses 112 and 133; Class 125, Stone Working, for stone cutting; Class 264, Plastic and Nonmetallic Article Shaping or Treating: Processes, particularly subclasses 138+ for a process of plastic shaping by or with cutting; and Class 425, Plastic Article or Earthenware Shaping or Treating: Apparatus, for means shaping or reshaping of plastic material combined with cutting means.

13. Classes related to the treatment, care, or handling of living animal (including human) bodies.

a. The class of surgery.

A patent directed to the cutting of a live animal body will be placed as an original copy in Class 128, Surgery.

b. The class of dentistry.

Original patents for devices for trimming plaster bases of dental models will be found in subclass 38 of Class 433, Dentistry.

c. The class of toilet.

Patents for cutting, scraping, or filing devices, disclosed as useful in manicure or pedicure operations, are placed originally in subclasses 75.4+ and 75.8 of Class 132.

d. The class of farriery.

The reference class (168), in subclass 48.1+, contains original patents to apparatus for sawing, milling, scraping, filing, or otherwise cutting animal hooves.

e. The class of fishing, trapping, and vermin destroying.

In addition to the typical fish hook and tackle therefor, the class of reference (43) contains patents for such cutting devices as spears and harpoons subclass 6 and impaling traps subclasses 77+.

14. Classes related to the preparation of food.

a. The class of butchery.

A patent directed to the cutting of the dead body of a previously living creature, preparatory to its use as food, will be found in Class 452, Butchering. For instance, patents relating to fowl beheading, carcass splitting, or fish cutting are found, respectively, in subclasses 12, 23, or 53+ thereof.

b. Bakery and confectionery type foods.

A manipulative process of shaping edibles combined with preform severing is provided for in Class 99, Foods and Beverages: Apparatus, subclasses 450.1+ and 537+, whereas comparable apparatus is provided for in Class 425, Plastic Article or Earthenware Shaping or Treating: Apparatus, appropriate subclasses. Cutting of edible preforms, per se, is provided for by Class 83 whereas severing of same by tearing or breaking is provided for by Class 225.

c. Other classes of food cutting.

A patent directed to one of the following types of food cutting will be placed originally in the appropriate food preparation class: Class 99, Foods and Beverages: Apparatus, for a cutting device which is adapted to a peculiar characteristic of the food, or wherein the cutting device separates distinguishable portions of the food, (e.g., leafy top portion, seeds, core, skin portion, eyes, etc.).

15. Classes related to the working of leather, skins, or hides.

a. The class of leather working.

Class 69, Leather Manufactures, includes patents directed to means and processes for splitting, skiving, defleshing, whitening, or buffing of hides or leather, and for cutting, (per se), in the production of certain articles typical of the class (e.g., leather straps, the subject of patents in subclass 17 of Class 69).

b. The class of boot and shoe making.

Patents for cutting means or methods specialized or peculiarly adapted to operation upon footgear are placed originally in Class 12, Boot and Shoe Making, particularly subclasses 27, 28, 40, 41.05, 41.7, 46, 47, 47.1, 57.5+, 62, and 85+.

16. Textile classes.

a. The class of cloth finishing.

Subclasses 7+ of Class 26, Textiles: Cloth Finishing, constitutes the locus of original patents limited to apparatus or process for severing threads or fibers projecting from textile fabrics. Such patents may relate, for instance, to shearing or to the cutting of float threads, pile loops, or weft ends.

b. The class of fiber preparation.

Patents for "tow-to-top" staplizing machines or methods are placed originally in Class 19, Textiles: Fiber Preparation. The type of severance therein involved is that in which a bundle of filaments of indefinite length (termed "tow") is subjected to a treatment which reduces the individual filaments to staple length fibers without disrupting the continuity or integrity of the bundle (which, when emerging from the machine or processes, is known as "top"). In Class 83, on the other hand, are found patents for machines or processes for the reduction of isolated individual filaments to staple length fibers (for instance, Beria-type cutters) or for the disruptive reduction of filament bundles to such fibers, in both cases without further textile treatment.

c. The class of weaving.

Original copies of patents for cutting devices mounted on loom parts (e.g., temple mounted cutters) are found in subclasses 302+ of Class 139.

d. The class of sewing machines.

Patents for cutting devices disclosed as attached to sewing machines will be found, as original copies, in subclasses 45 and 285-301 of Class 112.

e. The class of apparel apparatus.

Means for trimming the bottoms of dresses or skirts, for trimming hat brims, or for cutting (e.g., clipping) the nap of hats comprise subject matter of patents in subclasses 1.1, 16, and 19 of Class 223.

f. The general class of textiles.

Subclass 144 of the class of reference (28, Textiles) contains original patents for machines for making chenille yarn by cutting a woven fabric.

17. Classes pertaining to the communications and information arts.

a. The class of typewriters.

Subclasses 127+ and 135+ of Class 400, Typewriting Machines, includes original copies of patents drawn to keyboard operated means for cutting intelligence-bearing indicia, as, for instance, stencil cutting, and to processes utilizing such means.

b. The class of printing.

Generally speaking, the recording of intelligence by cutting is proper subject matter for Class 101, Printing. More particularly, individual cases of cutting machines or method may be tested for aptness to Class 101 by reference to the following statements:

i. A patent for a machine or process for cutting on or adjacent the printed or written matter on a document to prevent unauthorized or fraudulent alteration of such matter due to the proximity of the cut surfaces to the printed or written matter (e.g., check protecting) will be placed originally in Class 101, subclasses 3.1+.

ii. A patent for a machine or process for cutting work in the form of a character, a design, or a pattern which will impart information to an observer is proper for Class 101, subclasses 3.1+, if a cut is disclosed as extending only part way through the thickness of the work (e.g., embossing). If all of the cuts forming such character, design, or pattern are disclosed as extending all the way through the thickness of the work, the patent will be found in Class 83.

iii. If in addition to a cutting machine or process of this class (83) there is claimed a means or step peculiar to Class 101, (e.g., the application of ink to the cutting tool to additionally outline or mark an aperture made by the punch), such addition has been considered sufficient to place a patent directed to such combination in Class 101, subclasses 3.1+. This is in accordance with the general rule that a patent for a combination of cutting with another treatment of the work will be placed in the class of the other treatment. (See subsection B, Relationship to Other Treating Classes, below).

iv. An original patent claiming both the process and apparatus for the manufacture of stencils by cutting, or only such process, will be found in Class 101, subclass 128.4.

c. The class of recorders.

A process or apparatus which would be otherwise proper for Class 346, Recorders, will not be removed from the scope of that class merely by virtue of the fact that the recordation, as claimed, is accomplished by an incising or penetrating means or method step.

d. The class of registers.

Original patents directed to means for cutting or punching a record medium, in response to the results of the operation of a calculating machine or register, will be found in Class 235, Registers, particularly subclasses 58+ and 60.27+ (especially subclass 60.29).

e. The class of railway signaling.

Patents for apparatus which cuts or punches a record medium, in response to the operation of a block-signal system or of a cab signal or train control device, are placed originally in subclasses 107 and 185 (respectively) of Class 246, Railway Switches and Signals.

f. The class of telegraphy.

A patent for a cutting device which is actuated by means responsive to a telegraphically transmitted signal will be placed originally in Class 178, Telegraphy, those in subclass 92 being typical.

g. The class of binder devices releasably engaging aperture or notch of sheet.

A sheet binder device of that class (402) (i) in combination with a discrete sheet aperture forming device, which device perforates a sheet prior to placing the same on the retainer, (ii) including means to force a sheet upon the sheet retainer and (iii) including a sheet retainer which penetrates and inserts a pliant strand through a sheet will be found in subclasses 1, 7, and 25, respectively, of Class 402.

18. Receptacle classes.

a. The class of deposit and collection receptacles.

Patents claiming a ticket receiving and collection receptacle, with means to punch or cut tickets introduced into the receptacle, will be found placed originally in Class 232, Deposit and Collection Receptacles.

b. The class of special receptacles.

Patents for cigar- or tobacco-containing receptacles having an attached cutter are placed originally in Class 206, Special Receptacle or Package, subclasses 238+.

c. The class of paper receptacles.

Original patents for paper receptacles with attached means for opening a receptacle by cutting, tearing, or ripping will be found in subclasses 87.05, 200+, and 307 of Class 229, Envelopes, Wrappers, and Paperboard Boxes.

d. The class of metallic receptacles.

Subclasses 265+ of Class 220, Receptacles, includes original patents for general-utility receptacles with attached openers which function to open the receptacle by cutting part thereof.

19. Certain other classes distinguished by the nature or identity of work or product.

a. The class of tobacco.

Patents for machines which are disclosed as being specially adapted to the cutting of tobacco or cigars will be found, as original copies, in subclasses 248+ and 281 of Class 131. (Patents for tobacco cutting machines of more general utility are placed originally in appropriate subclasses of Classes 30 and 83).

b. The class of button making.

Patented machines or processes for cutting button blanks are disclosed in subclasses 15 and 16 of Class 79.

c. The class of brush, broom, and mop making.

The class of reference (300) includes a subclass (17) restricted to the, per se, trimming of articles of the class. Most of the devices represented by patents therein operate to accomplish such trimming by cutting.

d. The class of wheelwright machines.

Patents directed to machines and processes for lacerating or buffing the exterior surface of vehicle tires are collected in subclass 13 of Class 157, Wheelwright Machines, except those claiming an abrading means or step, which latter are to be found in Class 451, Abrading.

e. The class of ships.

Patents for ships carrying means to cut or break ice are placed originally in subclasses 40-42 of Class 114.

f. The class of chemical manufacture and adhesive bonding of articles.

Class, 156, Adhesive Bonding and Miscellaneous Chemical Manufacture, provides in subclasses 625+ for severing a workpiece by the action of a reactive or solvent fluid. It also provides for the combination of laminating and cutting in subclasses 250+ and 510+.

20. The class of geometrical instruments.

Subclasses 18.1+ of Class 33, Geometrical Instruments, include original patents for means for scoring or indenting a reference point, respectively.

B. RELATIONSHIP TO OTHER TREATING CLASSES

1. This class is an elementary class and generally does not include patents claiming the combination of a cutting method or means with a process or apparatus for other treatment(s). Certain specific exceptions to this general rule exist, as follows:

a. Heating or cooling work and cutting same.

Subject matter of subclasses 15+ and 170.

b. Cleaning work and cutting same;

subject matter of subclass 168.

2. Means for, or steps of, performing certain other operations whose character as treating or nontreating operations, it is recognized, will vary with individual judgement also are included in patents of this class in claimed combination with cutting instrumentalities or steps, as follows:

a. Weighing the cut product in subclass 77.

b. Separating or assorting product in subclasses 102+

c. Applying a transient, nonpropellant fluid (e.g., lubricant or coolant) to work in subclasses 22 and 169.

d. Temporarily deforming work; in subclasses 17+, 175, and 176.

e. Unwinding material from, or supporting material on, a spool, beam, bobbin, or the like, for presentation to a cutting device for operation thereon; note particularly subclasses 649+. (The combination of a cutting machine and significantly claimed means for winding the product thereof is subject matter for Class 242, Winding, Tensioning, or Guiding, as is the Combination of a winding machine and a means to cut the tail, extending from a package wound by such machine, from the source of material to be wound. See Class 242, subclasses 487.1+, 521, and 522+.

3. As to methods, the claimed recitation of a step of performing a treatment other than cutting will exclude a patent from original placement in this class, regardless of whether such treating step is claimed in detail.

4. In interpreting a claimed combination of cutting and noncutting treating means, a purely nominal recitation of the other (noncutting) treating means will not exclude an original patent from this class if all of the following conditions are met:

a. No means or instrumentality is claimed as being synchronized with the other treating means.

b. A single material handling means presents work to both such treating means; or, the means which presents material (as work) to a second treating means in line is the means which removes it (as product) from a first treating means in line.

c. No support or guide means is claimed as orienting or redirecting the material (work or product) between treating means.

C. RELATIONSHIP TO MATERIAL HANDLING CLASSES

1. Product handling means.

a. This class (83) receives original patents claiming significantly both a cutting tool of the class and means to separate or assort portions of the product resulting from the cutting operation. An original patent claiming such separating or assorting means in structural terms, and the cutting tool in nominal terms only, will be placed in Class 209, Classifying, Separating, and Assorting Solids.

b. Original patents drawn to the combination of cutting means of this class and product weighing means which does not govern the operation of the cutting means will be placed in this class (83) without regard to the degree of specificity with which the cutting means is claimed therein. If the weighing means is claimed as controlling a cutting device, which cutting device terminates feed or flow of material to the weighing means, a patent thereto is placed originally in Class 177, Weighing Scales.

c. As to other product handling devices (i.e., instrumentalities which effect or affect motion of the product of a cutting machine), the claimed combination of such device with a cutting machine constitutes subject matter for this class (83), regardless of the degree of specificity with which the cutting means is claimed.

2. Work handling means.

a. As between this class (83) and Classes 193, Conveyors, Chutes, Skids, Guides, and Ways; 198, Conveyors: Power-Driven; 212, Traversing Hoists; 414, Material or Article Handling; 226, Advancing Material of Indeterminate Length; 406, Conveyors: Fluid Current; and 271, Sheet Feeding or Delivering; the claimed recitation in purely nominal terms, of a cutting instrumentality with respect to which a work handling means may move or feed work will not of itself exclude placement of an original patent for such work handling means in the respective material handling class listed above. However, when such instrumentality is set forth with structural specificity, the claimed congregation of elements is properly placed with the work modifying instrumentality (class 83). For example: A claim reciting a structurally defined work handling means (not claimed as synchronized with a work modifying means), and a "work station" (or "tool station", or "work modifying means", or "tool", or "cutter", or "punch", or "knife", etc.) in so many words, is properly placed on the basis of the work handling means. A claim reciting a work handling means and, for instance, a work station including a "reciprocating tool element", or a "tapered tool", or a "round cutter", or a "rotary punch", is properly placed in the class of the specific tool set forth. The true test for proper placement in this class (83) is whether or not the combination of a tool and work-feed means is a significant tool-to-work-relationship. For further notes on this relationship see (2) Note, under subclass 703 of this class (83) referring to Class 414.

c. Further, this class (83) receives original patents claiming a cutting tool (of the type provided for in the class) synchronized with or in power-transmitting driving relation with, a work handling means, regardless of whether such tool is claimed significantly or merely nominally.

3. Tool handling means.

Class 483 provides for a Class 83 cutting process or apparatus combined with tool changing.

D. RELATIONSHIP TO CLASS OF TOOL DRIVING OR IMPACTING

Class 173, Tool Driving or Impacting, provides 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 83 has not been cleared as to subject matter in conflict with this line.

E. RELATIONSHIP TO THE CLASS OF WORK HOLDERS

This relationship is set forth in section II, Lines With Other Classes, of the class definition for Class 269.

F. STRUCTURE OF THE CLASS

1. A perusal of the first line or skeleton schedule of the class will reveal that the class is composed of a relatively small number of major subclass groups. Generally, in order of superiority, these major subclass groups provide search fields for:

a. a method including a step of cutting (subclasses 13-56).

b. noncyclic means to halt or prevent motion of a part or all of a cutting machine (subclasses 58-68).

c. means to monitor and control operation of a cutting machine (subclasses 72-76).

d. means to handle the product of a cutting operation (subclasses 78-166).

e. means to cut hollow work from the inside (subclasses 178-195).

f. means to cut work while cyclically halted (subclasses 202-283).

g. a flying cutter (subclasses 284-349).

h. a cutter (of a type other than those previously enumerated) synchronized with work moving means (subclasses 350-357).

i. a cutting machine with an appurtenance such as a clamp, work stop or gauge, work guide; firstly, synchronized with the tool cycle (subclasses 373-398), and secondly, not so synchronized (subclasses 438-468).

j. means to control the operation of a part (at least) of the machine in response to means to sense the work, product, or another part of the machine (subclasses 358-372, 399, 400).

k. a cutting machine having work moving means not claimed as synchronized with the tool cycle; providing for tool-station-type work moving means (subclasses 401 through 437.7).

l. a rotatable disc type cutting machine (subclasses 469-508).

m. means to produce or facilitate the cutting motion of a tool or tools (subclasses 513-519; 523-647).

n. a cutting tool, per se, or combined with its support (subclasses 651-699.61).

o. a method of, or means for, cutting other than all the way through the work thickness-wise, providing for scoring, skiving, and related operations (subclasses 6-12).

2. In addition, a limited number of groupings have been established on secondary bases of classification, to facilitate state-of-the-art searches. These subclasses, which contain no original patents are numbered from 901.

The following index is provided for convenience in locating certain elements or types of cutting machines according to keywords generally of art terminology. This index is not intended to be exhaustive.

SECTION III - SUBCLASS REFERENCES TO THE CURRENT CLASS

SEE OR SEARCH THIS CLASS, SUBCLASS:

72+,for automation.
278,391+, 401+, 467.1, for back gage.
788+,for band saw.
562,640, for beam dinker.
531+,561, 658+, for bed block.
403,for beria-type cutter.
788+,for chain saw.
182,206, 262, 282, 294, 319, 325, 375+, 409, 422, 452+, for clamp.
531+,652+, for clicker die.
32,42+, 50, for core lamination making.
288,for crop cut.
638,643, 644, for draw cut.
425.2+,for edge-cutter.
111+,for ejector.
284+,for flying cutter.
218,278, for four-motion feed.
572,573, for gag.
,See back gage for gage
598,620+, for gang punch.
450,(also see clamp and stripper), for holddown.
915.3,for ice cutting.
102.1,for kerf spreading.
637,for leader pin.
305,for miscut.
746+,for miter box.
237,916, 917, for nibble.
169,for oiler.
333,918, for pinkin.
,See clamp and holddown for presser foot.
213,214, 255, 256, 519, 611, 622, 636, for progressive cutting.
616,for punch hammer.
703+,for saw-mill dog.
401+,for saw-mill feed.
830+,835+, for saw-teeth.
923,for scrap cutter.
174+,for sharpener (tool).
223+,582+, for spring storage (cutter, punch).
111+,for stripper.
637,for sub-press unit.
477+,483+, for table saw.
353,483+, 614, for traveling cutter.

SECTION IV - GLOSSARY

ANVIL

A tool comprising a smooth-faced, imperforate member, the smooth face having the purpose of contacting the work and providing a reaction surface against which a relatively movable tool may abut in its work penetrating movement.

DETECTOR

A mechanism for sensing a physical property or characteristic of, or the presence or absence or passage of, the work or the product or a movable element of a machine; which mechanism effects a signal or impulse as a result of such sensing. The signal or impulse is sent through a transmitter, (see definition of "transmitter" below) and effects or initiates the functioning of a machine part or assembly controlled by the detector.

FLYING

Moving with the work material. The term "flying" means that the part so described has, at the time of cutting, a motion component in the direction of the work as it moves to and through the cutting station.

GUIDE

Passive means to direct the movement of something (e.g., work, product, machine part) in a desired path. (Note: although a guide may be movable for the purpose of adjustment, yet it accomplishes its directing function by presenting an obstacle to movement in an undesired direction, rather than by causing the directed thing or part to move with it).

NOTCHING

The cutting of a discrete product from a workpiece through the thickness of the workpiece with the line of cut starting at an edge of the workpiece and returning to the same edge. The edge of the workpiece may be either an exterior edge or an interior edge. A cut which extends solely along a single straight line is not considered to be a notching cut.

PRODUCT

Material which has been treated by the cutting tool; the result of a cutting operation. (Note: material which is "product" for one cutting operation may be "work" for an ensuing operation).

PUNCHING

The cutting of a discrete product out of the confines of a workpiece through the thickness of the workpiece so that the cut does not intersect any edge (exterior or interior) of the workpiece.

SHEARING

Cutting effected by the relative motion of two cutting tools having edges which are initially on opposite sides of the work with the cutting taking place by one tool moving towards the other tool and the edge on the moving tool moving past and in close and overlapping relationship to the edge of the other tool.

TOOL

The instrumentality that contacts the work for effecting directly the operation of the class either by itself or by cooperation with another tool.

TOOL CYCLE

The elapsed time between, and all of the motion traced by the tool between, the time the tool leaves any particular datum point in its approach to (or recession from) the work until it again leaves that point in its next succeeding approach to (or recession from) the work, the location of such datum point for a series of recurring cycles being determined without giving significance to mere positioning movements of the tool with respect to the work (Note: positioning movements of the tool are considered to be part of the cycle of motions constituting the tool cycle, and the time they occupy is part of the span of the cycle. They are disregarded only for the purpose of establishing the datum point of one cycle with respect to that of a preceding or succeeding cycle).

TOOL PAIR

A plurality of tools, each having a work contacting portion, said portions being initially separated from each other and cooperating to effect cutting of the work when they have relative movement toward each other.

TOOL STROKE

The motion of the tool toward and into the work to effect a cut, and the motion of retraction of the tool from the product to its base position.

TOOL SUPPORT

An element connected to the tool for supporting it against gravity and that partakes of all of the movement of the tool and has no relative movement with respect to the tool except for purposes of adjustment.

TRANSMITTER

A system for sending the signal or impulse which has been effected by a detector (see definition of "detector" above) to a means for establishing (in response to receipt of such signal or impulse) a driving connection between a source of power and a machine part or assembly; or sending such signal or impulse to a mart or assembly directly (as by a linkage).

WORK

Article, material, or stuff to be treated (cut). (Compare "product").

WORK-FEED MEANS

An instrumentality for advancing work to the treating (cutting) zone.

WORK THICKNESS

In general, the least dimension along a substantially planar outer surface of work. As to hollow workpieces, the thickness dimension at an annular section is taken as the wall thickness; at a solid section, it is the thickness of the entire workpiece as though it were not hollow. The thickness dimension of a strand is defined as follows: (a) as to those of circular, triangular or elliptical cross-section, by any line passing through the strand from surface point to surface point, (b) as to those of other polygonal cross-section, by any line passing through the strand from one outer surface to a nonintersecting outer surface. As to spheres a line extending through the sphere from one point on the surface to another is deemed to define the thickness dimension. As to all other shapes of work pieces, thickness is not considered significant for the purpose of this classification.

Throughout the definitions of subclasses herein below, the appearance of an asterisk (*) will indicate a word or term which has been defined in this section. However, the words "product", "tool", and "work", defined in this section, occur so frequently in the subclass definitions, that the use of the asterisk in reference thereto has been omitted.

SUBCLASSES

[List of Patents for class 83 subclass 13]    13PROCESSES:
 This subclass is indented under the class definition.  Method which includes a step of cutting.
(1) Note. A step of cutting, as herein applied, consists in moving a tool and work into contact with and relative to each other such that the tool moves entirely through the thickness of the work. Once the cut through the wall thickness has been achieved, then, an interruption of said relative movement, or of cutting contact extending throughout said wall thickness, shall be construed as a termination of said "step".
(2) Note. A special exception to the limitations expressed in these definitions (i.e., the limitations which require a moving tool and/or an edge backup member) exists in the case of wherein sound waves (e.g., supersonic sound) cause work to be cut through its thickness. Such a step will be proper for this class and this subclass as a process of cutting.

SEE OR SEARCH THIS CLASS, SUBCLASS:

701,for the corresponding apparatus.
861,and 866 through 880, for methods of cutting but generally not completely through work thickness.

SEE OR SEARCH CLASS:

29Metal Working,   subclass 557 for process of shaping a one piece blank which includes a step of severing.
234Selective Cutting (e.g., Punching),   subclasses 1+ for a method of selective cutting.
  
[List of Patents for class 83 subclass 14]    14With preparatory or simultaneous ancillary treatment of work:
 This subclass is indented under subclass 13.  Process which includes a step, either before or during the cutting step, of performing an operation (other than a cutting operation) which changes the shape or state of the work, which change of shape or state facilitates the cutting.
(1) Note. The operation may either facilitate the operation of the tool upon the work or effect a necessary or desired change of shape of the work with respect to the tool.
(2) Note. Included in this subclass (14) are processes which recite a step of placing the work under tension or compression; however, applying such force for the purpose of merely immobilizing the work, as by clamping, has not been considered a treatment step to admit the patent to this subclass. Such patents are classified below on other steps of their method.

SEE OR SEARCH CLASS:

451Abrading,   subclasses 35 and 54+ for a process of abrading including ancillary treatment of work.
  
[List of Patents for class 83 subclass 15]    15By heating or cooling:
 This subclass is indented under subclass 14.  Process which includes a step of increasing or decreasing the temperature of the work.

SEE OR SEARCH THIS CLASS, SUBCLASS:

170+,for apparatus for modifying or controlling the temperature of the tool or work.

SEE OR SEARCH CLASS:

264Plastic and Nonmetallic Article Shaping or Treating: Processes,   subclasses 138+ for molding or shaping processes within the class definition when combined with a cutting or severing step.
451Abrading,   subclasses 33 and 53 for a process of abrading including temperature modification or control of work or abradant.
  
[List of Patents for class 83 subclass 16]    16At localized area (e.g., line of separation):
 This subclass is indented under subclass 15.  Process in which the treatment is confined to a specific portion of the work, as by applying a heated tool on the line on which the separation is effected.

SEE OR SEARCH CLASS:

219Electric Heating,   subclasses 260+ for a process of burning a hole by means of electrically generated heat, and subclasses 69.1+ for a process of cutting by means of an electric arc.
  
[List of Patents for class 83 subclass 17]    17By distorting within elastic limit:
 This subclass is indented under subclass 14.  Process which includes a step of temporarily altering the shape or dimension of the work within the cutting zone and concurrently with the cutting operation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

175,and 176, for corresponding apparatus.
  
[List of Patents for class 83 subclass 18]    18By stretching:
 This subclass is indented under subclass 17.  Process which includes a step of subjecting the work to forces which are directed away from each other (i.e., tensile forces) to elongate the work.

SEE OR SEARCH THIS CLASS, SUBCLASS:

175,for corresponding apparatus.
  
[List of Patents for class 83 subclass 19]    19By compressing:
 This subclass is indented under subclass 17.  Process which includes a step of subjecting the work to forces directed toward each other, which forces density, reduces the volume, or reduces a dimension of the work.
  
[List of Patents for class 83 subclass 20]    20By flexing around or by tool:
 This subclass is indented under subclass 17.  Process which includes a step of bending the work by engaging the work with a tool so as to thereby distort or deform the work.

SEE OR SEARCH THIS CLASS, SUBCLASS:

18,for a process of both stretching and flexing the work by contacting the work with a tool.
19,for a process of both compressing and flexing the work by contacting the work with a tool.
  
[List of Patents for class 83 subclass 21]    21To conform to shape of tool:
 This subclass is indented under subclass 20.  Process which includes a step of subjecting the work to bending forces which direct the work toward a tool so as to compel the work to assume the shape of the tool.
  
[List of Patents for class 83 subclass 22]    22By fluid application:
 This subclass is indented under subclass 14.  Process in which the treatment includes contacting the work with a fluid or gas.
(1) Note. This subclass includes methods of applying a lubricant to the tool or work.

SEE OR SEARCH THIS CLASS, SUBCLASS:

15+,for process of heating or cooling by a fluid application.
17+,for process of distorting the work by fluid pressure before or during the cutting step.
24,for process of subsequently handling the produce by fluid application.
53,for process of cutting by the direct application of fluid pressure to the work.
169,for corresponding apparatus.
402,for apparatus to move work by fluid current.
  
[List of Patents for class 83 subclass 23]    23With subsequent handling (i.e., of product):
 This subclass is indented under subclass 13.  Process which includes a step of manipulating a product resulting from the severing step.
(1) Note. Moving cut work between claimed cutting steps has been considered work-feeding rather than subsequent handling of a product; and patents thereto have been placed below on the basis of other steps.

SEE OR SEARCH THIS CLASS, SUBCLASS:

39+,for a method including the feeding of work from one tool station to another; and see the Notes thereto.
78+,for corresponding apparatus.
  
[List of Patents for class 83 subclass 24]    24By fluid application:
 This subclass is indented under subclass 23.  Process in which the manipulation of the product is effected by contacting the product with a gas or liquid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

98+,for corresponding apparatus.
402,for apparatus to move work by fluid current.

SEE OR SEARCH CLASS:

226Advancing Material of Indeterminate Length,   may include a nominal recitation of a supply or take-up coil (e.g., less than a support for such a coil or a cooperative relationship between a tension or exhaust detector* and reel driving or reel stopping means, etc.), subclass 7 for a process of or subclasses 97.1+ for apparatus using fluid current to advance the material.
  
[List of Patents for class 83 subclass 25]    25By retaining or reinserting product in workpiece:
 This subclass is indented under subclass 23.  Process which includes a step of holding or replacing the product in the workpiece from which it was separated.
(1) Note. The retention or reinsertion is usually for the purpose of conveying the product away from the cutting station by means of the workpiece.
(2) Note. This subclass has been designated a collecting place for disclosures of methods of, and means for, retaining a product in position in a workpiece.

SEE OR SEARCH THIS CLASS, SUBCLASS:

103,for apparatus for removing a reinserted product from cut work.
108,for apparatus for replacing a product in the workpiece from which it has been cut.
  
[List of Patents for class 83 subclass 26]    26By accelerating travel:
 This subclass is indented under subclass 23.  Process wherein the speed of product being delivered is increased with respect to that of the work being fed or with respect to the speed of an adjacent product piece.
(1) Note. Such process usually accomplishes the purpose of conveying the product away from the following work, or out of the path of a tool, or moving one product with respect to another product while both are moving away from the cutting zone.
  
[List of Patents for class 83 subclass 27]    27By separating products from each other:
 This subclass is indented under subclass 23.  Process which includes a step of moving one of a plurality of products with respect to the other.
(1) Note. The piece remaining in the cutting zone and unmoved after cutting has not been considered a product for purposes of this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

102+,for corresponding apparatus.
  
[List of Patents for class 83 subclass 28]    28By moving work support to which a tacky product is adhered:
 This subclass is indented under subclass 23.  Process in which the work has an adhesive on one surface, which surface is adhered to a work holder to which the product remains adhered subsequent to the cutting step, and which includes a step of manipulating the support with the product adhered thereto.

SEE OR SEARCH CLASS:

225Severing by Tearing or Breaking,   subclasses 23+ , for means to move tacky work to a tool station.
  
[List of Patents for class 83 subclass 29]    29Including stacking of plural workpieces:
 This subclass is indented under subclass 13.  Process which includes a step of assembling workpieces one upon another prior to the cutting step, and cutting the assembled workpieces.
  
[List of Patents for class 83 subclass 30]    30Puncturing:
 This subclass is indented under subclass 13.  Process which includes a step of shaping an opening in the work, as by a sharp, pointed tool, so that no substantial amount of material is removed from the work; i.e., there is only one product.

SEE OR SEARCH THIS CLASS, SUBCLASS:

660,for a pointed perforating tool.
866+,for a perforating device, or method, which does not produce, or result in, complete penetration of work.

SEE OR SEARCH CLASS:

137Fluid Handling,   subclass 15.14 for a process of tapping a pipe or tank (e.g., gas main, water main, keg, etc.) having an aperture forming cutter or cutting tool.
428Stock Material or Miscellaneous Articles,   subclasses 596+ for metallic stock material having apertures; e.g., resulting from a puncturing operation.
  
[List of Patents for class 83 subclass 31]    31With manipulation of tool protective strip (e.g., backing strip):
 This subclass is indented under subclass 13.  Process which includes a step of positioning a wear preventing material between one tool of a tool pair and the work, and repositioning the material relative to both the tool and work between cutting steps.

SEE OR SEARCH THIS CLASS, SUBCLASS:

547+,for corresponding apparatus.
  
[List of Patents for class 83 subclass 32]    32Cutting of interdigitating products:
 This subclass is indented under subclass 13.  Process which includes a step of severing a plurality of products from a workpiece, each of which products has an interfitting portion which lies within a recess of the other product, the product portions which define the cooperating interfitting portions constituting the parts of the whole of a common area of the workpiece, and at least part of the separation being effected along the lines of the interfitting portions.
(1) Note. The mere longitudinal separation of a web of indefinite length into two or more ribbonlike products by means of an undulant cut, or the mere transverse separation of a product from a web of indefinite length by means of an undulant cut, is not considered sufficient to bring the patent within this subclass but will be found below in subclasses 48 and 56.

SEE OR SEARCH THIS CLASS, SUBCLASS:

48,for process of transversely separating products from the leading edge of the work by means of an undulant cut, and see (1) Note above.
56,for process of separating the work longitudinally by means of an undulant line of cut, and see (1) Note above.
  
[List of Patents for class 83 subclass 33]    33Making and using a registration cut:
 This subclass is indented under subclass 13.  Process which includes the steps of effecting a cut upon the work and then utilizing that cut (as by engaging the edges thereof) or orient, locate, or feed the work with respect to a tool, for a subsequent cut.
  
[List of Patents for class 83 subclass 34]    34With reorientation of tool between cuts:
 This subclass is indented under subclass 13.  Process which includes a step of shifting the tool intermediate successive cutting steps to rearrange or readjust the tool with respect to the work.
(1) Note. The mere movement of the tool toward and from the work in its normal cutting cycle has not been considered reorienting. The reorientation is superimposed upon the tool stroke, resulting in such additional movements as a change from the previously normal path of the tool during the tool feeding cycle, and inversion of the tool, or an indexing of the tool.

SEE OR SEARCH THIS CLASS, SUBCLASS:

35+,for process which includes reorienting the work between cuts.
215+,for apparatus for imparting a plurality of motions to a tool during its cutting cycle.
556+,for tool positioning means synchronized with the cutting stroke.
  
[List of Patents for class 83 subclass 35]    35With reorientation of work between cuts:
 This subclass is indented under subclass 13.  Process which includes a step of shifting the work intermediate successive cutting steps to rearrange or readjust the work with respect to a tool or a cutting station.
(1) Note. The mere advancement of the work into the cutting zone has been considered feeding rather than reorienting. The reorientation is superimposed upon the work-feeding motion, resulting in such additional movements as: a change in the path of an established direction of feed, an inversion of the work, or a turning end-for-end of the work.

SEE OR SEARCH THIS CLASS, SUBCLASS:

34,for process which includes reorienting the tool between cuts.
219+,for apparatus for feeding the work in a plurality of directions.
249,for apparatus to facilitate a manual repositioning of the work between cuts.
256,for apparatus for changing the direction of work-feed between work stations.
404+,for means to move work from one tool station to another.
  
[List of Patents for class 83 subclass 36]    36Relative to same tool:
 This subclass is indented under subclass 35.  Process wherein the reorientation is effected with respect to the tool which has accomplished the earlier of the successive cutting steps.
  
[List of Patents for class 83 subclass 37]    37During movement of work past flying cutter:
 This subclass is indented under subclass 13.  Process which includes a step of cutting while the work is moving through a cutting zone, which step includes moving the tool, at the time of cutting, in the direction the work is moving.
(1) Note. A method of slitting the work longitudinally of the direction of work movement by means of a rotatable disc tool has been excluded. Patents thereto will be found in subclass 56 below; whereas patents for slitting apparatus will be found in subclasses 426+.
(2) Note. Apparatus used to practice this process is usually called a flying cutter, patents to which will be found in subclasses 284+.

SEE OR SEARCH THIS CLASS, SUBCLASS:

42+,for process of sequentially separating products from the leading edge of the work.
56,and see (1) Note above.
284+,for corresponding apparatus.
426+,and see (1) Note above.
  
[List of Patents for class 83 subclass 38]    38Cyclically varying rate of tool or work movement:
 This subclass is indented under subclass 37.  Process which includes a step of changing either the speed of the tool during a portion of its cyclic travel, (i.e., toward, from, or concurrent with, the moving work) or the speed of the work as it traverses the cutting zone.
(1) Note. Oscillating and reciprocating tools of necessity have a period of nonuniform rate of travel due to the reversals of direction. Since such tools inherently operate in this manner, patents for methods of operating them have not been included in this subclass and will be found in other subclasses indented under subclass 13. However, all patents for methods of operating unidirectionally moving rotary tools which start their cycle of movement from a position of rest have been placed here because of the difficulty distinguishing between rotary tools which stop and those which merely slow down.

SEE OR SEARCH THIS CLASS, SUBCLASS:

238+,for means to feed work unequally in recurring series.
313,for a flying cutter with means for cyclically varying the work-feed speed.
324,for a flying cutter with means for cyclically varying the tool speed of an orbitally moving tool.
617,for a tool having means to vary the force or speed of the tool stroke.
  
[List of Patents for class 83 subclass 39]    39Plural cutting steps:
 This subclass is indented under subclass 13.  Process which includes more than one cutting step as defined in (1) Note to subclass 13.

SEE OR SEARCH THIS CLASS, SUBCLASS:

34,for process of reorienting a tool between cutting steps.
35+,for process of reorienting the work between cutting steps.
213+,for plural tools successively actuated at the same cutting station.
255+,for plural tool stations of a subclass 202 type.
404+,for means to move work between plural tool stations.
  
[List of Patents for class 83 subclass 40]    40Blanking and cutting:
 This subclass is indented under subclass 39.  Process which includes a step of blanking, as defined in (1) Note to subclass 55, below; and further includes a step of making some other kind of cut.

SEE OR SEARCH THIS CLASS, SUBCLASS:

49,for process of making a progressive cut by a series of blanking operations.
50,for process of repetitive blanking.
  
[List of Patents for class 83 subclass 41]    41Cutting to join blanked holes:
 This subclass is indented under subclass 40.  Process in which a series of blanking steps is accompanied by a cutting step which connects the blanked out areas.
  
[List of Patents for class 83 subclass 42]    42Repetitive transverse severing from leading edge of work:
 This subclass is indented under subclass 39.  Process which includes the steps of feeding the work to and through a cutting station and making serial cuts each of which separates a product(s) from the advancing edge of the work.

SEE OR SEARCH THIS CLASS, SUBCLASS:

37+,for a process of repetitive transverse severing from the leading edge of the work while the work is moving through the cutting station.
202+,for an apparatus for cutting the work during a dwell in the work-feed.
284+,for a flying cutter which may sever work transversely.
350+,for a cutter synchronized with moving work, which may sever work transversely.
  
[List of Patents for class 83 subclass 43]    43Alternately forming products of less than total width of work:
 This subclass is indented under subclass 42.  Process in which a product is separated from a portion only of the transverse extent of such advancing edge of the work, and the remaining portion of the transverse extent is subsequently severed in the formation of one or more separate products.
  
[List of Patents for class 83 subclass 44]    44With longitudinal severing:
 This subclass is indented under subclass 42.  Process which includes a step of cutting the work along a line generally parallel to the direction of work-feed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

408,for apparatus to accomplish the same purpose.
  
[List of Patents for class 83 subclass 45]    45Effected by plural steps:
 This subclass is indented under subclass 44.  Process in which the longitudinal severing is accomplished by a series of cutting steps.
  
[List of Patents for class 83 subclass 46]    46Along zigzag or undulant line or cut:
 This subclass is indented under subclass 44.  Process in which the longitudinal severing is along a side-to-side or wavy line of separation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

32,for process of cutting transversely of the work combined with longitudinal severing along a zigzag or wavy line where the cuts make interdigitating products.
45,for the combination of transverse and longitudinal severing in which a zigzag or wavy line of longitudinal separation is effected by plural cuts.
48,for process of nonrectilinear transverse cutting to sever a product from the leading edge of the work.
56,for process of making a zigzag or wavy line of separation.
333,for a rotatable tool having an undulant cutting edge.
  
[List of Patents for class 83 subclass 47]    47Prior to transverse severing:
 This subclass is indented under subclass 44.  Process wherein the step of longitudinal cutting is made before that of transverse cutting in the severance of each product piece from the advancing edge of the work.
  
[List of Patents for class 83 subclass 48]    48Nonrectilinear cutting:
 This subclass is indented under subclass 42.  Process wherein the line of cutting produced by the serial cuts does not define a straight line path.

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32,for process of cutting interdigitating products.
46,for process of making a nonrectilinear longitudinal cut and a transverse cut.
56,for process of making a continuing line of cut which may be undulant.
410+,for a work carrier guided in a nonrectilinear path, thus effecting a nonrectilinear cut.
  
[List of Patents for class 83 subclass 49]    49Plural cutting steps effect progressive cut:
 This subclass is indented under subclass 39.  Process which includes making a continuing line of cut by a series of cutting steps.
(1) Note. The successive cuts may be effected by a single tool or by a plurality of tools mounted on a single carrier.
(2) Note. A cutting step is defined in (1) Note to subclass 13.

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52,for process of effecting a progressive cut in increments during a single cutting step.
56,for process of making a continuing line of cut by a single step.
332,for apparatus including a segmented disc slitting or slotting tool effecting a progressive cut on moving work.
  
[List of Patents for class 83 subclass 50]    50Repetitive blanking:
 This subclass is indented under subclass 39.  Process which includes a plurality of blanking steps as defined in (1) Note to the definition of subclass 55.

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32,for process of cutting interdigitating products by repetitive blanking steps.
34,for process of repetitive blanking wherein the tool is reoriented between cuts.
35+,for process of repetitive blanking wherein the work is reoriented between cuts.
40+,for process of blanking and cutting.
41,for process of blanking out a plurality of holes in a workpiece and cutting to join the holes.
45,for process of progressive slotting which comprises a series of blanking operations.
  
[List of Patents for class 83 subclass 51]    51Cutting part way through from opposite sides of work:
 This subclass is indented under subclass 13.  Process in which plural cutting tools penetrate work disposed between them and meet in cutting engagement interiorly of the work.
(1) Note. Included are patents for process of "nipping".

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566+,600, and 623, for structure wherein each of two tools of a tool pair moves toward the other
  
[List of Patents for class 83 subclass 52]    52Effecting diverse or sequential cuts in same cutting step:
 This subclass is indented under subclass 13.  Process which includes a step of making in a single cutting step, either (a) two or more cuts differing in kind (e.g., cut, slit, punch) or (b) similar cuts effected serially and overlapping in time.
(1) Note. See (1) Note to subclass 13 for the definition of a cutting step.

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40+,for process of blanking and cutting in two or more steps.
49,for process of making a single continuous cut progressively through the work by a plurality of cutting steps.
56,for process of making a continuous cut by a single cutting step.
513+,for plural tools with individually actuated tool supports, and particularly subclass 519 for successively acting tools, and subclass 518 for diverse tools.
554+,for means driving a tool through plural steps in cutting strokes.
688,for a punch having spaced, successively operating, portions.
  
[List of Patents for class 83 subclass 53]    53Cutting by direct application of fluent pressure to work:
 This subclass is indented under subclass 13.  Process which includes the step of cutting solely by contacting the work with a pressure medium which conforms to the configuration of a passive supporting tool, on or against which the work is supported.
(1) Note. The pressure medium may be liquid, gaseous or of a readily yieldable material such as rubber.

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177,for corresponding apparatus.
431,for means (which may be fluent means) to force work upon tool.

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451Abrading,   subclasses 28+ for a process of severing by abrading.
  
[List of Patents for class 83 subclass 54]    54Cutting wall of hollow work:
 This subclass is indented under subclass 13.  Process which includes a step of severing a cup, tube or the like.

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178+,for cutting apparatus which includes a tool within hollow work.

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82Turning,   subclass 47 for process of cutting hollow work while effecting relative rotary movement about an axis passing through the work, and subclass 82 for corresponding apparatus.
137Fluid Handling,   subclass 15.14 for a process of tapping a pipe or tank (e.g., gas main, water main, keg, etc.) having an aperture forming cutter or cutting tool.
  
[List of Patents for class 83 subclass 55]    55Blanking:
 This subclass is indented under subclass 13.  Process which includes a step of blanking.
(1) Note. Blanking is defined as separating a product from within the confines of the work so that not more than one of the edges of the product is an edge of the workpiece, or so that less than 1/2 of the circumference of a curved product is a part of the circumference of initially curved work. Mere serration does not in itself comprise more than "one edge" of the workpiece.

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40+,for the combination of blanking and cutting steps.
49,for process of progressive slotting which comprises a series of blanking operations.
50,for process of repetitive blanking.

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428Stock Material or Miscellaneous Articles,   subclasses 577+ for metallic blanks not elsewhere provided for.
  
[List of Patents for class 83 subclass 56]    56Cut advances across work surface:
 This subclass is indented under subclass 13.  Process which includes a step of making a continuous cut which extends through the work thickness wise and which proceeds in a direction toward or from one edge of the work, which may be a leading or trailing edge.
(1) Note. Included are processes of "drawcutting" and "slitting".

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44+,for process of progressively cutting longitudinally of the work combined with transverse severing from the leading edge of the work.
49,for process of making a progressive cut by a plurality of cutting steps.
52,for process of progressive cutting effected in increments during a single cutting step.
341+,for progressive transverse "flying" cutter.
425+,for means to move work past a fixed-type slitting cutter.
483+,for means to carry a rotatable disc-type tool across work.
611,for a progressively cutting oscillating cutter.
614,and 636, for a progressively cutting reciprocating cutter.
642+,for "draw-cut" mechanism.
689,for a progressively cutting punch.

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225Severing by Tearing or Breaking,   subclass 3 for process of breaking or tearing longitudinally of the direction of work-feed.
  
[List of Patents for class 83 subclass 57]    57WITH MANUALLY ACTUATED MEANS TO DISTURB CYCLIC OPERATION:
 This subclass is indented under the class definition.  Device which comprises means, actuatable by force applied by and at the will of an operative, to override the normal cyclic functioning of a part(s) of the device, which part(s) returns to normal functioning when the application of the intervening force ceases.
(1) Note. The disturbance referred to is temporary and exists only during the application of force by an operative. (Example: A machine, set to cut products of a given size, is controlled by a pushbutton to cut small pieces for sampling purposes).
(2) Note. The disturbance herein contemplated does not embrace stopping. For disclosures, of noncyclic stopping means, see subclasses 58+; and, for cyclic stopping means, see other appropriate subclasses whose titles include the work "stopping" or equivalent term (e.g., subclasses 202+).
(3) Note. Adjustment of a device establishes a new condition which persists indefinitely, and is thus distinguishable from a "disturbance" which permits the disturbed part to return to the previous condition upon withdrawal of the intervening force.

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68,for manually caused stopping of a machine or a part thereof.
232+,for tool actuating means adapted to be struck by a mechanical part, which means might be urged manually to cause tool operation at will.
252,for supplemental manual work-feed means.
  
[List of Patents for class 83 subclass 58]    58WITH RANDOMLY ACTUATED STOPPING MEANS:
 This subclass is indented under the class definition.  Device provided with means capable of bringing any or all of the moving parts of the device to a halt, such means acting to accomplish its halting effect in response to a signal or impulse which cannot be predicted to occur during any particular one of a number of recurring cycles of operation (either of the machine as a whole, of the tool, or of any part of the machine which has a cyclic law of operation).
(1) Note. Such means may comprise, for example, a device effective to disrupt the flow of power to a part or all of the machine, as by effecting the disconnection of the parts of a clutch.
(2) Note. It is not a bar to original placement of a patent in this subclass, that the claimed power train disrupting, braking or other "stopping" means may be activated at a time when the part to be halted is, purely adventitiously, at a standstill due to its normal cyclic operation.
(3) Note. If, however, the normal and intended operation of power disrupting, friction gripping, or other motion preventing means, is to forestall the impending start of movement or activation of a part of the device, then the motion preventing means is regarded as an interlock and its claimed combination with an instrumentality of a cutting machine is found in subclasses 399+, below.
(4) Note. If the normal and intended operation of power disrupting means is to forestall or prevent future movement of a tool or tool support by disrupting its power-transmitting connection to an uninterruptedly moving tool-actuating mechanism, the claimed combination of the power-disrupting means with the tool support and tool actuating mechanism is found in subclasses 572+, indented under subclass 571 in this schedule.

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57,for manually caused disturbance (i.e., temporary change) of cyclic operation.
69,for stopping means effective on completion of a predetermined number of cutting cycles.
70,for delayed stopping after cessation of cyclic operation.
571+,for devices which disables a tool without bringing to a halt any moving part other than the tool or its support; see (4) Note above.

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72Metal Deforming,   subclasses 1+ , for a stopping feature in a metal-deforming machine.
100Presses,   subclasses 341 through 352for a press having a safety control.
192Clutches and Power-Stop Control,   appropriate subclasses, for stopping means in general; and subclass 134 for a device applicable to a punch press which is peculiarly designed to stop machine operation in response to detection of the unauthorized presence of a part of an operative"s body.
234Selective Cutting (e.g., Punching),   subclasses 30+ for a selective cutting device provided with randomly actuated stopping means.
  
[List of Patents for class 83 subclass 59]    59With means to permit subsequent hand operation:
 This subclass is indented under subclass 58.  Device provided with means which may be actuated manually to thereby cause at least a portion of the device to go through its normal cyclic motions after the stopping has been effectuated.
  
[List of Patents for class 83 subclass 60]    60With stop-signal-responsive means to actuate auxiliary cutter:
 This subclass is indented under subclass 58.  Device provided with means whereby the signal or impulse also brings into action means to bring the work into cutting engagement with another cutter or to cause such other cutter to engage and cut the work.
  
[List of Patents for class 83 subclass 61]    61With sensing of product or product handling means:
 This subclass is indented under subclass 58.  Device wherein the signal or impulse is generated by a detector* for either (a) a product of the cutting operation, or (b) means to accomplish direct, or otherwise affect movement of such product.

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73,for means to otherwise control a machine by monitoring a product.
78+,for a product handling feature in a cutting machine environment.
358+,for the control of an operation by means responsive to product.

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198Conveyors: Power-Driven,   appropriate subclasses for different types of conveyors or systems of plural conveyors having operation control means responsive to a condition of a conveyor or to a condition of the conveyed load.
  
[List of Patents for class 83 subclass 62]    62Responsive to tool detector or work-feed-means detector:
 This subclass is indented under subclass 58.  Device in which the signal or impulse is generated by a detector* which directly or indirectly senses a condition or location of the tool or of the work-moving means.
(1) Note. The direct contact of the detector with the tool or work-moving means may be that which occurs in the normal, uninterrupted operation of the device, in which case the signal for stopping is generated by failure of the detector to make such direct contact.
  
[List of Patents for class 83 subclass 62.1]    62.1Responsive to tool characteristic:
 This subclass is indented under subclass 62.  Device in which the detector* senses a condition or a location of the tool*.
(1) Note. Included in this subclass are broken tool alarms and safety devices.
  
[List of Patents for class 83 subclass 63]    63Responsive to work sensing means:
 This subclass is indented under subclass 58.  Device in which the signal or impulse is generated by a detector* for the work.

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80,for product handling means initiated by means responsive to work.
209+,211+, 286+, for operation controlled by means responsive to work in cyclically operated cutting machines.
360+,for operation controlled by means responsive to work, in cutting machines in general.

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226Advancing Material of Indeterminate Length,   subclass 43 for material responsive control means for stopping the operation of feeding means.
  
[List of Patents for class 83 subclass 64]    64Of buckled work:
 This subclass is indented under subclass 63.  Device in which the detector contacts a portion of the work moving in a bent or arcuate path.
  
[List of Patents for class 83 subclass 65]    65Running loop:
 This subclass is indented under subclass 64.  Device in which a portion of the work normally moves in a predetermined bent or arcuate path, or in any one of a number of possible bent or arcuate paths in a zone whose limits are defined by two such paths, and the signal is generated upon departure of the work from the predetermined path or zone.
  
[List of Patents for class 83 subclass 66]    66Detector supported on or urged against work:
 This subclass is indented under subclass 63.  Device in which the detector is under the influence of gravity or any other force which tends to keep it constantly in contact with the work.

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64+,for a device in which the detector is supported on or urged into contact with buckled work.
360+,for specific types of work responsive means; and see the Notes thereto.
  
[List of Patents for class 83 subclass 67]    67Resiliently biased:
 This subclass is indented under subclass 66.  Device in which the detector is elastically urged into contact with the work.
  
[List of Patents for class 83 subclass 68]    68Manually operated:
 This subclass is indented under subclass 58.  Device wherein the impulse or signal which brings about or initiates the stoppage is entirely a product of the will of an operative.
(1) Note. This subclass excludes means for halting a machine part solely by the application of braking force, or the interposition of blocking means, in a yieldable drive train. Examples of such excluded subject matter may be found in the patents of subclass 593.

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57,for manually actuated device which disturbs cyclic operation, rather than starts of stop a cyclic cutting operation.
571,for disconnecting means between tool and tool actuator, as for changing a machine set-up, and subclasses 572+, indented thereunder, for means capable of connecting or disconnecting a tool, or tool and its support, to or from an actuating element while the latter is in motion (i.e., "gag" or "gag block"), and see (4) Note under subclass 58, above.
  
[List of Patents for class 83 subclass 69]    69WITH STOPPING MEANS EFFECTIVE ON COMPLETION OF PREDETERMINED NUMBER OF TOOL CYCLES:
 This subclass is indented under the class definition.  Device including means to bring one or more parts to a halt after a tool has carried out a fixed (but not necessarily unalterable) plurality of tool cycles*.
(1) Note. Where the part stopped is a cutter, the tool cycle of reference is the cycle of such cutter itself, not that of another cutter operating on a different cycle.

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61,for a device which includes means for stopping upon completion of formation of a stack of products of predetermined size.
203+,for a cutting machine in which the operative relationship between the work-feed means and tool actuating means thereof is interrupted, once for every cutting cycle, by the stoppage of a part or parts, so that the intervention of human will is necessary to restore such interrelationship and bring about another cutting cycle.
524+,for unicyclic cutting machines (other than subclass-203 type).

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234Selective Cutting (e.g., Punching),   subclass 21 for means to stop a selective cutting machine after a given number of operations.
  
[List of Patents for class 83 subclass 70]    70WITH MEANS TO ACCOMPLISH DELAYED STOPPING AFTER CESSATION OF CYCLIC OPERATION:
 This subclass is indented under the class definition.  Device which includes means effective to bring a part or all of the device to a halt upon the lapse of a certain limited period of time subsequent to the termination of feeding and cutting operations.
(1) Note. Examples are the tape "run-out" devices on message-handling tape punches.

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234Selective Cutting (e.g., Punching),   subclasses 59+ for a pattern-controlled selective cutting machine.
  
[List of Patents for class 83 subclass 72]    72WITH MEANS TO MONITOR AND CONTROL OPERATION (E.G., SELF-REGULATING MEANS):
 This subclass is indented under the class definition.  Apparatus, each of whose parts has a desired operating condition according to a law of operation; such apparatus being provided with a detector for sensing a deviation of a part(s) (or all of the apparatus) from its or their desired operating condition; and including means to modify - in response to a signal or impulse transmitted by said detector - (a) the cyclical operation of such part(s) (or the entire apparatus) to correct the deviated operating condition; and/or, (b) the normal cyclical operation of another part(s) to compensate for the deviated condition; whereby, in either event, the maintenance of a normal cyclical desired operating condition of the apparatus as a whole is achieved.
(1) Note. The sensing or detecting may be direct; i.e., by determining the operation of a component of the device (as, for example, in U.S. Patent No. 2,175,828, wherein a driven feed roller is coupled to a roller-speed detector); or may be indirect, i.e., by determining the result of the operation of a component of the device (as, for example, in U.S. Patent No. 1,961,538, wherein work is moved by feed rollers, indicia on the work are scanned stroboscopically to detect any variations in work speed imparted by the feed rollers, and such speed variations are eliminated by correcting the feed roller speed).
(2) Note. Merely stopping or starting a cyclic component of the device to effect the functioning thereof is not considered to be modifying the operation of a component. However, a regulating means, which accomplishes such modification of a cyclic operation, may itself be started or stopped (to effect the cyclic operation), in response to the detection of a deviation in the desired condition. (See, for example, U.S. Patent No. 2,023,243, wherein the leading edge of the work initiates the actuation of a regulating means, which means compares the position and speed of the entering work relative to the angular position and speed of a flying cutter and modifies the angular position of the cutter to compensate for the entrance timing of the work).
(3) Note. The imposition of a change upon a component by an operator (e.g., physical relocation of a component) is not considered a deviation within the meaning of the definition above. Thus, patents claiming means for detecting operator-imposed changes, and means to vary the operation of the device in response to detection of such changes, will be found in other subclasses; e.g., subclasses 399+, below.
(4) Note. Detection of an irregularity in the work, which irregularity is not the result of a deviation in the desired operation, but is a part of the work, is not considered a deviation detection within the meaning of the definition above. Thus, devices claiming means to detect such irregularities and means to vary the operation of a cutting device in response to the detecting means, will be found in other subclasses; e.g., subclasses 360+, below.
(5) Note. For Search Note relating to other Control Functions, see the Notes in subclass 399, below.

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226Advancing Material of Indeterminate Length,   subclasses 10+ for means to sense material and control the operation of material feeding means.
  
[List of Patents for class 83 subclass 73]    73Including means to monitor product:
 This subclass is indented under subclass 72.  Device in which a deviation in the operating condition of the device is indicated indirectly by the means to detect or sense the product.
  
[List of Patents for class 83 subclass 74]    74Including means to correct the sensed operation:
 This subclass is indented under subclass 72.  Device in which the means to vary the cyclic operation effects a revision in the operating condition of the component whose deviation is detected or sensed.
  
[List of Patents for class 83 subclass 75]    75And modify another operation:
 This subclass is indented under subclass 74.  Device in which the means to vary the cyclic operation also effects a revision in the operating condition of a component different from the component whose deviation is detected or sensed.
  
[List of Patents for class 83 subclass 75.5]    75.5Optimizing product from unique workpiece:
 This subclass is indented under subclass 74.  Device including means to compare the work, the desired product and the stored data to better utilize that particular piece of work to produce more or better product.
  
[List of Patents for class 83 subclass 76]    76Including means to compensate tool speed for work-feed variations:
 This subclass is indented under subclass 72.  Device in which the detecting means senses the speed or position of the work and in which the means to vary the cyclic operation effects a revision in the speed of a cutting tool in response to the detected speed or position of the work.

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198Conveyors: Power-Driven,   appropriate subclasses for different types of conveyors or systems of plural conveyors having operation control means responsive to a condition of a conveyor or to a condition of the conveyed load.
  
[List of Patents for class 83 subclass 76.1]    76.1WITH CONTROL MEANS RESPONSIVE TO REPLACEABLE OR SELECTABLE INFORMATION PROGRAM:
 This subclass is indented under the class definition.  Device provided with memory means, i.e., a member in which digital or analog data can be impressed for subsequent recall, and including means to detect the data on the memory means and accordingly regulate the operation of the device.
(1) Note. The "memory" means of this subclass may comprise permanently installed structure of the device or it may comprise a removable tape or card.
(2) Note. A templet, per se, is not considered to be a replaceable information supply; however, a device including a templet from which information is retrieved and stored in the device is included in this subclass.

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399,for a cutting machine with a portion thereof controlled by a remote member and see the Search Notes thereunder for a comprehensive listing of subclasses in this class including "control" features.
565,for a cutting machine of this class type including means to drive or guide the tool with a templet surface following tool.

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72Metal Deforming,   subclass 7 for analogous "pattern" sensing means which controls a metal deforming device.
234Selective Cutting (e.g., Punching),   subclasses 59+ for a pattern controlled selective cutting machine.
  
[List of Patents for class 83 subclass 76.2]    76.2For cutting component of animal; e.g., hair clipper:
 This subclass is indented under subclass 76.1.  Device particularly adapted to severing a portion of an animal, either living or dead.
(1) Note. Included herein is a hair clipping (or wool shearing) machine on which an animal is placed, having a control means responsive to replaceable or selectable information program which guides the cutter.

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13+,for the method of cutting hair, or for the method of shearing a sheep.

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30Cutlery,   subclasses 196+ for randomly manipulated hair clippers, generally.
  
[List of Patents for class 83 subclass 76.3]    76.3Removable element carries program:
 This subclass is indented under subclass 76.1.  Device wherein the member on which the replaceable data is impressed is physically detachable from the device.
  
[List of Patents for class 83 subclass 76.4]    76.4Indeterminate length, web or strand:
 This subclass is indented under subclass 76.3.  Device wherein the removable member on which replaceable data is stored is generally elongated and wherein the device either engages no end of the removable member or engages only the leading or trailing end thereof.
(1) Note. The replaceable member may be endless, or it may be wound on a spool.
  
[List of Patents for class 83 subclass 76.5]    76.5Magnetic:
 This subclass is indented under subclass 76.4.  Device wherein the magnetic characteristics of the removable member are utilized in storing data thereon.
  
[List of Patents for class 83 subclass 76.6]    76.6Arithmetically determined program:
 This subclass is indented under subclass 76.1.  Device wherein the memory means can be impressed for subsequent recall only by digital data.
  
[List of Patents for class 83 subclass 76.7]    76.7With condition sensor:
 This subclass is indented under subclass 76.6.  Device including means to detect a characteristic other than that of the "memory".
(1) Note. The condition sensor of this subclass may respond to work, product, a component of the device, or to the environment.
  
[List of Patents for class 83 subclass 76.8]    76.8Responsive to work:
 This subclass is indented under subclass 76.7.  Device including means to detect the material to be cut before the cutting action takes place.
  
[List of Patents for class 83 subclass 76.9]    76.9With operator input means:
 This subclass is indented under subclass 76.6.  Device also having means to alter the operation thereof (without changing the program) at the control of the person operating the device.
  
[List of Patents for class 83 subclass 77]    77WITH MEANS TO WEIGH PRODUCT:
 This subclass is indented under the class definition.  Device having means to determine the weight of a piece or portion of the cut product.

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177Weighing Scales,   appropriate subclasses for the combination of a cutting machine and a weighing scale which received material cut or to be cut by the cutting machine, characterized by means for actuating, or modifying the operation of, the cutting machine in response to determination of the weight of material accumulated on the weighing scale; and subclasses 60+ for weigh chamber responsive material control.
198Conveyors: Power-Driven,   subclasses 504+ for a conveyor having load weighing means.
  
[List of Patents for class 83 subclass 78]    78WITH PRODUCT HANDLING MEANS:
 This subclass is indented under the class definition.  Apparatus including means to move, guide, or otherwise affect the motion of, the product of a cutting operation - other than by the mere provision of a receptacle or support into or onto which product may descend at random (i.e., without necessarily assuming any regular arrangement).
(1) Note. A cutting machine including such receptacle or support for receiving product in random arrangement constitutes subject matter of subclass 167, below.
(2) Note. The handling given recognition by this and indented subclasses is additional to that which inherently is accomplished by the tool(s) in the cutting operation. A tool, qua tool, is therefore not to be considered a product handling means. But a specific element fixed to, or a portion integral with, a tool will be recognized as a product handling means if there is a clear teaching, in the disclosure of the device, that the element or portion performs a product handling function.
(3) Note. Inasmuch as many work moving means of the cutting arts also function to carry away the product of the cutting operation, a patent whose only claimed means capable of product handling is a device for moving, guiding, supporting, or stopping motion of, work will not be placed originally in this subclass unless such work handling device is claimed in terms of its specific product handling function. (Of course, a patent claiming work handling means in combination with additional means to give the work handling means a product handling effect - such as means to tilt a work table to effect product sliding - will be placed originally in this or an indented subclass).
(4) Note. For the purpose of original placement in this classification, a means to handle the product of one of a claimed series of tool stations, while proceeding from such one station to a succeeding station, will be considered a work handling means for the succeeding station rather than a product handling means for the earlier station. (Disclosures of such means may be placed as cross-reference copies in this or indented subclasses, where deemed pertinent).

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23+,for method of cutting and subsequently handling the product.
77,for a device under the class definition combined with means to weigh the cut product.
167,for a device under the class definition combined with a receptacle or support for the cut product; and see (1) Note, above.
404+,for a device including means to move work between successive tool stations.

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198Conveyors: Power-Driven,   subclass 339.1 for a conveyor arranged to facilitate working on the conveyed load at a work station, and subclasses 373+ for a conveyor having means for changing the attitude of the conveyed load relative to the conveying direction.
242Winding, Tensioning, or Guiding,   subclasses 487.1+ and particularly subclasses 522+ and 911 for cutting a product which is subsequently wound classified along this line: Patents which claim a device for cutting material and for winding are placed in Class 242 whereas patents which claim a device for cutting material supplied from a wound source, or in which disclosed structure for winding a cut product is not significantly claimed are placed in Class 83 or related Class 225 (Severing by Tearing or Breaking).
271Sheet Feeding or Delivering,   subclasses 278+ for a device for removing individual sheets to some determined position (where no means to treat the sheet is claimed specifically).
414Material or Article Handling,   appropriate subclasses, for an instrument or mechanism for placing or displacing articles in a particular manner, as in stacks or piles; also for a carrier or forwarding mechanism of general type combined with special means for placing the load on the carrier or removing it therefrom (where no means to treat the material is claimed specifically).
  
[List of Patents for class 83 subclass 79]    79Initiated by means responsive to product or work:
 This subclass is indented under subclass 78.  Device including a detector* for sensing product or work, a transmitter*, and means to effect or initiate product handling or delivery as a direct or indirect result of the receipt by said means of a detected and transmitted signal or impulse.
(1) Note. As between Classes 83 and 209, patents claiming significant assorting of the work for, or the product of, a disclosed cutting device will be placed as an original copy in Class 209 unless the cutting device also is claimed significantly, in which latter case the original copy will be placed in this class (class 83).
(2) Note. Included in this subclass are patents disclosing the sensing of product and the initiation of product handling responsive thereto, whereas subclass 80 (indented hereunder) is the repository for patents disclosing product handling responsive to work sensing.

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360+,for means to initiate an operation, other than product handling, controlled by product sensing or work-sensing means.

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198Conveyors: Power-Driven,   appropriate subclasses for different types of conveyors or systems of plural conveyors having operation control means responsive to a condition of a conveyor or to a condition of the conveyed load.
  
[List of Patents for class 83 subclass 80]    80Responsive to work:
 This subclass is indented under subclass 79.  Device in which the detector senses work.
  
[List of Patents for class 83 subclass 81]    81Initiated by means directly responsive to tool movement:
 This subclass is indented under subclass 78.  Device including a detector* for sensing the presence of a moving tool, or of an element partaking of all tool motions, at a predetermined point in the path of motion of said tool or element; and including a transmitter* and means to effect or initiate product handling or delivery as a direct or indirect result of the receipt by said means of a detected and transmitted signal or impulse.
  
[List of Patents for class 83 subclass 82]    82In return motion of tool:
 This subclass is indented under subclass 81.  Device in which the detector acts to sense the retraction of the tool from the work.
  
[List of Patents for class 83 subclass 83]    83Including means to drape the product:
 This subclass is indented under subclass 78.  Device which comprises, as part at least of the product handling means, or is additionally provided with, means adapted to receive and support the cut product with the ends of the product depending downwardly on opposite sides of the support means.
  
[List of Patents for class 83 subclass 84]    84Including means to form or hold pile of product pieces:
 This subclass is indented under subclass 78.  Device which includes structure for placing or retaining product pieces in some regular order relative to, and in contact with, one another.
(1) Note. Included in this group of subclasses are patents which disclose that elongated product pieces are arranged in substantial parallelism or that flat product pieces are arranged sequentially in face-to-face contact.
(2) Note. As indicated by the subclass definition, a patent claiming a receptacle or support which is disclosed as serving to receive and retain the product pieces in an orderly arrangement will be included in this group of subclasses. However, where there is no teaching that the product pieces are placed or held in the receptacle or on the support in some regular order the patent will be placed in subclass 167, below.

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414Material or Article Handling,   subclasses 6+ for a device adapted to arrange articles in special relation to each other in a pile or stack.
  
[List of Patents for class 83 subclass 85]    85In nested relation:
 This subclass is indented under subclass 84.  Device which has means to place together, or retain, a plurality of similar nonplanar cut pieces in sequential interfitting order, with at least a portion of one piece located within, and in contact with, a mating hollow portion of the next adjacent piece.
  
[List of Patents for class 83 subclass 86]    86In stacked or packed relation:
 This subclass is indented under subclass 84.  Device which has means to place together, or to receive and retain, a multiplicity of substantially planar-faced cut pieces in sequential face-contacting relation, supported one on another or edgewise on a common base.
(1) Note. A stack or pack is formed by superposition or juxtaposition of the pieces thicknesswise. Herein, and in the indented subclasses, the term "stack" will be used to designate the concepts generally included in both the terms "stack" and "pack".
(2) Note. Such stack need not be static but may be in motion, such as one which is continually diminished at one end and replenished at the other end.
(3) Note. A patent disclosing a device which includes a mere product-conforming cavity in a hollow tool or in the tool and its support, though it inherently holds the pieces in stack formation, is not included in this group of subclasses (86+) but is placed on the basis of other features. However, a stack holding means which communicates with such tool or its support, or which is incorporated as an added element within the tool or its support, its proper subject matter for this group.

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164,for a hollow tool having a product diverting conduit within it or extending therefrom which does not include a stack holding means within the definition of subclass 86.

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271Sheet Feeding or Delivering,   subclasses 207+ for a sheet delivery device having means for receiving and retaining the sheets in stacked or packed relation.
  
[List of Patents for class 83 subclass 87]    87Stacker sweeps along product support:
 This subclass is indented under subclass 86.  Device including means to support product pieces, individually or in stacks, in spaced relationship in substantially parallel planes so that an edge of one such piece or stack is above the adjacent edge of the next or adjacent piece or stack, and including stacking means which moves along the support means for engaging the pieces or stacks sequentially and moving them into superposed stacked relation with each other.
  
[List of Patents for class 83 subclass 88]    88Including cut pieces overlapped on delivery means:
 This subclass is indented under subclass 86.  Device including means to arrange a series of cut pieces on a product-moving support so that each piece of the series rests partly in contact with the support and partly on an adjacent piece.
(1) Note. Included in this subclass are patents disclosing apparatus as above defined and further including means to place additional cut pieces on the overlapped series.
  
[List of Patents for class 83 subclass 89]    89And means to separate product portions:
 This subclass is indented under subclass 86.  Device including means to move one or more product pieces from a stack, or to cause product pieces to proceed, or be directed to, a stack, and other product pieces to proceed or be guided in another direction (as, for instance, but not necessarily, to another stack).

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102+,for a device under the class definition which includes means to divert one portion of product from another, but without means to stack the product pieces.
  
[List of Patents for class 83 subclass 90]    90Including means to move stack bodily:
 This subclass is indented under subclass 86.  Device which is effective in itself to move, or is provided with additional means for moving, a formed stack of product pieces as a unit.

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89,for a device including means to move a portion of a stack of product pieces from the stack.
  
[List of Patents for class 83 subclass 91]    91By movement of stack holder:
 This subclass is indented under subclass 90.  Device in which the bodily movement of the stack is accomplished by moving the support on which the pieces are received to form the stack.
  
[List of Patents for class 83 subclass 92]    92By timed relocation of holder along path of stack growth:
 This subclass is indented under subclass 91.  Device in which means is provided to move the support progressively broadside away from the source of product pieces as product pieces are added to the stack.
(1) Note. A typical device of this kind operates to keep the product receiving end of the stack at all times in the same position with respect to the source of pieces for the stack.
  
[List of Patents for class 83 subclass 92.1]    92.1Interrelated adjustment of holder movement and work-feeder:
 This subclass is indented under subclass 92.  Device including means to vary the progressive broadside movement of the product, which means is operatively linked to the mechanism which adjusts the extent that a work-feeding device moves between each cutting cycle.
(1) Note. Included in this subclass are devices having means to vary the thickness of product pieces being cut, which means effects the adjustment of the movement of the product holder to compensate for such variance in thickness.
  
[List of Patents for class 83 subclass 93]    93And means to resist stack movement:
 This subclass is indented under subclass 86.  Device which includes means to oppose broadside movement of the stick away from the source of product pieces as product pieces are added to the stack.
(1) Note. Devices including a receptacle telescoped over a stack holder or guide in which the receptacle is moved by the growing stack are typical of the art of this subclass.
  
[List of Patents for class 83 subclass 94]    94Including means to deliver individual pieces to a stack holder:
 This subclass is indented under subclass 86.  Device including means to move or guide cut product pieces singly to a means for supporting a plurality of the pieces in stacked relation.
  
[List of Patents for class 83 subclass 95]    95With spindle to enter a hole or to make hole in product:
 This subclass is indented under subclass 94.  Device in which the stack holder is provided with a rod-like projection which is introduced into an aperture in each product piece so as to hold the pieces in stacked relation, the aperture being either preformed or formed by the projection upon placement of the piece thereon.

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402Binder Device Releasably Engaging Aperture or Notch of Sheet,   subclass 1 , for a sheet binder device of that class which includes in combination, an impaling type sheet retainer and a discrete sheet aperture forming device, which device perforates a sheet prior to placing the same on the retainer; subclass 7 for such device including an impaling type sheet retainer which penetrates and inserts a pliant strand through a sheet surface, and subclass 25, for a sheet binder device including an impaling type sheet retainer including means to force a sheet upon the sheet retainer.
414Material or Article Handling,   subclasses 1+ for a device having a projection engaged in the apertures of a series of articles for holding the articles in stacked relation.
  
[List of Patents for class 83 subclass 96]    96By face-engaging means to push product broadside into stacked relation:
 This subclass is indented under subclass 94.  Device which functions to engage a piece of cut work on its surface of greatest area and move it in a direction perpendicular to that surface into face-contacting relation with a previously cut piece.

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97+,for means to hold a stack of product pieces which may be discharged broadside from within a hollow cutter but not by means to deliver individual pieces.

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271Sheet Feeding or Delivering,   subclass 83 for oscillatory fly means to deliver a sheet to a stack.
  
[List of Patents for class 83 subclass 97]    97Upon emergence from hollow cutter:
 This subclass is indented under subclass 86.  Device in which the stack is formed by means which receives pieces, formed by a tool having a cavity or aperture and a continuous cutting edge bounding the open end of said cavity or aperture, after the pieces have left the confines of the tool.
(1) Note. The stack former may be claimed in some general term such as "a chute"; but if, as disclosed, it actually forms a stack, a patent therefor is placed here regardless of the breadth commonly assigned to the name applied to such stack former.
(2) Note. For the distinction between this subclass and subclass 164, below, see (3) Note under the definition of subclass 86 above.
  
[List of Patents for class 83 subclass 98]    98By fluid current:
 This subclass is indented under subclass 78.  Device which effects movement of product directly by means of one or more jets or streams of liquid or gaseous material.
(1) Note. The pressure of the fluid current may be superatmospheric or subatmospheric.
(2) Note. Fluid pressure means (blast or vacuum) which function merely to push or pull product into contact with a mechanical product-moving or product-braking means do not constitute subject matter for this subclass. Original patents claiming such fluid blast devices will be placed in the subclass based on the nature either of the mechanical product-moving means or the mechanical product-braking means.
(3) Note. The Notes under the definition of subclass 402, below, include a comprehensive listing of subclasses in this class and in other classes which deal with material handling by fluid current.

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152,for a product-moving means with suction means for pressing product to the moving means.

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198Conveyors: Power-Driven,   subclasses 428 , 438, and 493 for a power-driven conveyor combined with means for impinging fluid on the conveyed load.
226Advancing Material of Indeterminate Length,   subclasses 97.1+ for means to advance material by fluid current.
  
[List of Patents for class 83 subclass 99]    99Plural blasts directed against plural product pieces:
 This subclass is indented under subclass 98.  Device comprising a number of fluid jets each of which impinges upon a separate, independent, unitary part of the product resulting from the completion of one cutting cycle.
  
[List of Patents for class 83 subclass 100]    100By suction means:
 This subclass is indented under subclass 98.  Device including means to produce a zone of subatmospheric pressure so related spatially to the cutting zone or product path that the product will move under the influence of atmospheric pressure toward or through said zone of subatmospheric pressure.
(1) Note. See (2) Note and the search subclass note under the definition of subclass 98 above.
  
[List of Patents for class 83 subclass 101]    101By brush means:
 This subclass is indented under subclass 78.  Device in which movement of the product is effected by frictional engagement with bristles mounted on a backing having relative motion with respect to the product.
  
[List of Patents for class 83 subclass 102]    102Including means to divert one portion of product from another:
 This subclass is indented under subclass 78.  Device including means for accomplishing one of the following functions:
  • causing contiguous (either touching or adjacent) products which have been traveling along parallel paths to now travel in diverging directions; or preventing their paths from merging or overlapping;
  • (b) causing, or permitting, product pieces which have been proceeding seriatim along a common path to now follow respective discrete and individual paths;
  • (c) causing, or permitting, one or more product pieces to follow a path away from the zone of separation while restraining one or more pieces from proceeding away from the zone of separation (i.e., holding one piece back while another moves away);
  • (d) dividing a moving group of products into smaller groups (or units) traveling in the same direction of general path as that before division; or
  • (e) positively moving products from the zone of separation in different directions.
(1) Note. Such separation must be additional to that inherently accomplished by the tool(s) in the act of cutting.
(2) Note. The removal (or facilitation of removal) of one product portion from the as-cut position, while leaving the portion from which it has been cut in the cutting zone to serve as work for a succeeding cut by the same tool, is not considered to be separation.
(3) Note. The separation signalized by this subclass is distinct from that brought about by means for moving a product from contacting engagement with a tool (such as stripping or ejecting means). So, the movement of product out of contact with a tool, even though it may involve a motion away from another product portion, is not considered a separation for the purpose of patent placement in this and indented subclasses.
(4) Note. On the other hand, a product portion which has been subjected to the action of a stripper- or ejector-type means (as defined in subclass 111) is not considered (for the purpose of this classification) to be closely adjacent to other product portions from which the stripper or ejector has moved it apart, so that a further movement of the portions in different directions will not be deemed to be a separation. (A positive teaching that a stripper or ejector places a product portion in actual contact with another portion, however, will not be ignored). For patents claiming means to strip or eject a product portion and thereafter convey it away, see subclass 112.
(5) Note. The combination with cutting, of separation accomplished in response to a sensing of a physical characteristic of the pieces to be separated (such as quality separation), is provided for in subclass 79.
(6) Note. Merely allowing pieces to fall freely from a common height or place of departure is not considered to permit them to travel in substantially different directions. But diverting guides which cause certain of the so dropped pieces to travel in one path and others to follow a different path constitute separating means.
(7) Note. Since this subclass is specific to that of produce, (i.e., cut work) handling, which requires the operation of motion-affecting means additional to the work-feeding means, at least one of the separated product portions must be directed to its destination by means other than the work moving means.
(8) Note. Although separation inherent in a cutting operation (e.g., the removal of certain product pieces through a hollow cutter) is not sufficient to place here a patent disclosing such, a patent directed to product separating means carried by a cutter is proper for this and indented subclasses.

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27,for a method of cutting including a step of product separation.
79+,for means to separate product portions responsive to detection of a product characteristic; and see (5) Note above.
89,for a cutter combined with means to divide a stack of pieces resulting from the cutting operation.
98+,for product separating means employing a fluid current.
101,for product separating means including a product-engaging brush.

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198Conveyors: Power-Driven,   subclasses 348+ for a system of plural conveyors having selectable plural sources or destinations for the conveyed load, subclasses 418+ for a system of plural conveyors having means for establishing and moving a group of items, and subclasses 434+ for a system of plural conveyors having means for arranging or rearranging a stream, or streams, of items.
209Classifying, Separating, and Assorting Solids,   appropriate subclasses, for a product separating means, per se; and see (1) Note to subclass 79 above.
  
[List of Patents for class 83 subclass 102.1]    102.1By kerf entering guide:
 This subclass is indented under subclass 102.  Device in which a kerf* entering means engages the contiguous sides of the work to prevent their paths from merging or overlapping.
  
[List of Patents for class 83 subclass 103]    103Remaining or re-inserted product portion from base material:
 This subclass is indented under subclass 102.  Device wherein means are provided to dislodge a severed product from the surrounding material from which it has been cut but with which it is still in contact; or to dislodge from such material a severed product which has been cut, removed, and reinserted into its original position.

SEE OR SEARCH THIS CLASS, SUBCLASS:

108,for means to reinsert product in base material after severance therefrom.
  
[List of Patents for class 83 subclass 104]    104Gravity type:
 This subclass is indented under subclass 102.  Device in which means are provided to permit the earth"s gravitational field to act selectively on a plurality of product portions; with the result that one portion or piece will move along a path have a downward component, under the gravitational impetus, while another portion or piece will move along some other path or will be restrained from moving away from the zone of separation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

157,for means for tilting or withdrawing a product support so that the product is left without support against gravity, such means not having a product separating function.

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198Conveyors: Power-Driven,   subclasses 311 , 359+, and 523+ for a power-driven conveyor combined with a gravity conveyor.
209Classifying, Separating, and Assorting Solids,   appropriate subclasses, for a gravity type separator, per se.
  
[List of Patents for class 83 subclass 105]    105Deflecting guide:
 This subclass is indented under subclass 102.  Device provided with passive means for guiding a product into a path diverging from that followed by another product.
(1) Note. The deflecting guide of this subclass is effective to direct a moving product portion into a desired path, not to hold it from further movement. Stationary means (catchers) which prevent a product portion from moving, while another portion continues in motion, will be found in subclass 102 and in subclass 104 indented thereunder.
(2) Note. The divergence effected by a guide of this type may be either simultaneous with the passage of another product portion through the zone of separation or may be temporarily spaced therefrom. That is, the guide may operate on one or more product portions traveling along parallel paths or moving seriatim along the same path.

SEE OR SEARCH THIS CLASS, SUBCLASS:

102,for means to hold back one product portion positively while another portion proceeds to travel past the area of such holding back, and indented subclass 104 for such means wherein the product portion not held back escapes from the zone of separation under the impetus of gravity; and see (1) Note, above.
373,for a work guide whose positioning movement is synchronized with tool actuation.
438+,for a guide for directing the travel of moving work, rather than product.

SEE OR SEARCH CLASS:

198Conveyors: Power-Driven,   subclasses 351+ , 367, 442, 525+, 599, and 633+ for passive means for guiding a load from one conveying path to another conveying path diverging therefrom.
  
[List of Patents for class 83 subclass 106]    106Positionable gate in product flow path:
 This subclass is indented under subclass 105.  Device, provided with passive means for guiding a product portion into any one of a number of different paths, which means may be reoriented (either at will or cyclically) with respect to oncoming product so as to effect such selective guidance.

SEE OR SEARCH THIS CLASS, SUBCLASS:

104,for a gravity type product separator, including a tiltable or with drawable product support which functions to separate product portions.
157,for a product deflecting means in the form of a tiltable or with drawable support for the product, which means does not have a separating function.
  
[List of Patents for class 83 subclass 107]    107Diverging product movers:
 This subclass is indented under subclass 102.  Device which includes plural dynamic product moving means which function to effect separation by directly and positively moving one product from the zone of separation in a direction or path different from that in which another product is directly and positively moved.
(1) Note. One of the product moving means may be a work moving means, which may be claimed as such.
(2) Note. Means which move a product portion out of contact with a tool (e.g., stripper or ejector) are not considered product moving means for the purpose of this subclass, in accordance with (3) Note to subclass 102.

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198Conveyors: Power-Driven,   subclasses 370.07 through 370.09,370.1, 370.11 through 370.13, 426+, 432, 433, 434+, 597+, and 601 for power-driven conveyor means for moving a load from one conveying path to another conveying path diverging therefrom.
  
[List of Patents for class 83 subclass 108]    108Including means to replace product in base material after cutting:
 This subclass is indented under subclass 78.  Device wherein means is provided to re-engage the product piece with the surrounding material, from which it was severed, by inserting the piece into the aperture formed when the piece was produced.

SEE OR SEARCH THIS CLASS, SUBCLASS:

25,for a corresponding method.
103,for means to remove such reinserted piece from the base material.
  
[List of Patents for class 83 subclass 109]    109Means to move, guide, or permit free fall or flight of product:
 This subclass is indented under subclass 78.  Device having active means to propel the product or passive means in the form of a guide* to define, limit or change (without terminating) the path of moving product; or means which allows or facilitates motion of unsupported product; or means, other than the cutter or work-feed means, to cause relative motion between the product and a member of the cutting pair.
(1) Note. A mere support for product is not a guide.

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78,for a brake or abutment stop for product.

SEE OR SEARCH CLASS:

198Conveyors: Power-Driven,   appropriate subclasses for a power-driven conveyor or for such a conveyor combined with a gravity conveyor.
  
[List of Patents for class 83 subclass 110]    110Means to move product at speed different from work speed:
 This subclass is indented under subclass 109.  Device including means to move the product away from the cutting zone at a speed which is greater or less than the speed of the work as it moves toward the cutting zone.
(1) Note. For a device which includes a brake or abutment for stopping the product completely, see subclass 78, above.

SEE OR SEARCH THIS CLASS, SUBCLASS:

78+,and see (1) Note above.

SEE OR SEARCH CLASS:

198Conveyors: Power-Driven,   subclasses 460.1+ and 579 for a conveyor feeding the conveyed load to another conveyor having a greater conveying speed.
  
[List of Patents for class 83 subclass 111]    111Means to move product out of contact with tool:
 This subclass is indented under subclass 109.  Device, provided with means for causing or assuring relative motion between a product piece or portion and a cutter which has produced for penetrated it so as to remove from contact with such cutter a product piece or portion which tends to cling thereto.
(1) Note. A device of this type may be termed a "stripper" or "ejector".

SEE OR SEARCH CLASS:

72Metal Deforming,   subclasses 257 , 328, 344+, and 427 for a press-type metal deforming device including a means to eject or strip a product from a forming die.
  
[List of Patents for class 83 subclass 112]    112With means to effect subsequent conveying or guiding:
 This subclass is indented under subclass 111.  Device in which the means for removing the product from the cutter delivers the product to means for thereafter transporting such product away from the first product moving means, or to means for supporting the cut product as it continues to move under the influence of gravity.
  
[List of Patents for class 83 subclass 113]    113Out of contact with a rotary tool:
 This subclass is indented under subclass 111.  Device which cooperates with a tool having a cutting edge located on the outer or arcuate periphery of a circular disc or cylinder turning unidirectionally about an internal axis.
  
[List of Patents for class 83 subclass 114]    114Mover surrounds axis of tool rotation:
 This subclass is indented under subclass 113.  Device which encompasses a substantial portion of the rotary tool axis and periphery.
  
[List of Patents for class 83 subclass 115]    115Mover mounted on rotary tool:
 This subclass is indented under subclass 113.  Device in which the relative-motion-producing means is physically attached to, or otherwise supported by, the stripped tool or cooperating revolving tool.

SEE OR SEARCH THIS CLASS, SUBCLASS:

136+,for a stripper mounted on a moving tool (other than rotary) or tool support; and see the Notes thereto.
  
[List of Patents for class 83 subclass 116]    116For radial movement of product:
 This subclass is indented under subclass 115.  Device which is effective to produce the relative motion in a radial direction, from or towards the axis of rotation of the rotating tool.
  
[List of Patents for class 83 subclass 117]    117Resiliently mounted:
 This subclass is indented under subclass 116.  Device including elastic or springlike means deformable to urge or move the relative-motion-producing means from one position to another.
(1) Note. Springlike means may function to move a "stripper" or "ejector" to its normal position after movement to its operative position by a cam means, etc.
(2) Note. A typical device of this type is a coil spring, which may directly contact the product or urge another device which directly contacts the product.
  
[List of Patents for class 83 subclass 118]    118Mover is resiliently mounted:
 This subclass is indented under subclass 113.  Device including elastic or springlike means deformable to urge or move the relative-motion-producing means from one position to another.
(1) Note. The springlike means may be integral with the stripping or ejecting means.
  
[List of Patents for class 83 subclass 119]    119Pivoted mover:
 This subclass is indented under subclass 113.  Device including relative-motion-producing means which is mounted to permit limited oscillatory movement thereof about an axis while it is exerting force on the product.
  
[List of Patents for class 83 subclass 120]    120And plural rotating tools:
 This subclass is indented under subclass 119.  Device including means which functions to move product relative to at least one of two cooperating tools which revolve about spaced parallel axes.
  
[List of Patents for class 83 subclass 121]    121Stationary mover:
 This subclass is indented under subclass 113.  Device including a relative-motion-producing means located in a fixed position relative to immovable parts of the machine.

SEE OR SEARCH THIS CLASS, SUBCLASS:

145,and 146, for a stationary stripper in combination with an oscillating or reciprocating tool.
  
[List of Patents for class 83 subclass 122]    122And plural rotating tools:
 This subclass is indented under subclass 121.  Device including means which functions to move product relative to at least one of two cooperating tools which revolve about spaced parallel axes.
  
[List of Patents for class 83 subclass 123]    123By ejector within a hollow cutter:
 This subclass is indented under subclass 111.  Device wherein the product lies within, and in contact with the walls of, a cavity in a tool which has produced it, said tool having a continuous cutting edge bounding said cavity, and in which the relative-motion-producing means removes the product from the cavity.

SEE OR SEARCH THIS CLASS, SUBCLASS:

97+,for means to form a pack or stack of cut pieces delivered from a hollow cutter.
98+,for means to accomplish ejection from a hollow cutter by fluid blast or suction.
116+,for a device of this type mounted on a rotary tool support.

SEE OR SEARCH CLASS:

72Metal Deforming,   subclasses 344+ for means to eject a formed article from a female die.
408Cutting by Use of Rotating Axially Moving Tool,   subclass 68 , for a hollow drill combined with means to eject the product therefrom.
  
[List of Patents for class 83 subclass 124]    124And means to strip the outer surface of a cutter:
 This subclass is indented under subclass 123.  Device wherein means is also provided to remove product from the outer surface of either the hollow tool, a cooperating tool, or a tool mounted on the hollow tool support.
  
[List of Patents for class 83 subclass 125]    125Ejector operated with return stroke of cutter:
 This subclass is indented under subclass 123.  Device wherein the actuation of the product-moving means is synchronized with movement of the hollow tool in its retraction from the work and cooperating cutter after said tool has made its cut.

SEE OR SEARCH THIS CLASS, SUBCLASS:

82,for product-moving means initiated by means directly responsive to return movement of the tool.
  
[List of Patents for class 83 subclass 126]    126By means carried by cooperating cutter:
 This subclass is indented under subclass 123.  Device wherein the product-moving means is carried by the other tool which coacts with the hollow tool to form a tool pair*.

SEE OR SEARCH THIS CLASS, SUBCLASS:

136+,and see the Notes thereto.
  
[List of Patents for class 83 subclass 127]    127By cam-operated ejector:
 This subclass is indented under subclass 123.  Device wherein the ejector slides back and forth within the tool cavity under the influence of a smooth surface, irregularly shaped member rotatable or slidable operating against the ejector or against a motion-transmitting means between said member and the ejector.

SEE OR SEARCH THIS CLASS, SUBCLASS:

115+,for a device of this type wherein the hollow cutter is mounted on the periphery of a rotary member.
  
[List of Patents for class 83 subclass 128]    128By resiliently biased ejector:
 This subclass is indented under subclass 123.  Device wherein the ejector slides back and forth within the tool cavity and includes, or is provided with, compressible or extensible elastic means for urging it in one of said directions when compressed or extended.

SEE OR SEARCH THIS CLASS, SUBCLASS:

115+,for a device of this type wherein the hollow cutter is mounted on the periphery of a rotary member.
  
[List of Patents for class 83 subclass 129]    129Moving stripper timed with tool stroke:
 This subclass is indented under subclass 111.  Means including an instrumentality for moving the means (a stripper) which causes relative motion between the cutter and product, such instrumentality moving stripper in a definite temporal relationship with respect to the cutter"s movement into and out of cutting engagement with the work.
(1) Note. This and indented subclasses do not include patents for strippers or ejectors operating upon the product of circumferentially edged revolving tools, for which see subclasses 113+.
(2) Note. For a holddown clamp (or other form of clamp) timed with tool stroke, see subclasses 375+.

SEE OR SEARCH THIS CLASS, SUBCLASS:

113+,for a stripper or ejector for removing a product from a revolving cutter in timed relation with the tool"s motion; and see (1) Note, above.
123+,for an ejector for removing a product from within a hollow cutter, and moved in time relation to a tool stroke.
375+,and see (2) Note, above.
  
[List of Patents for class 83 subclass 130]    130And alternatively movable to or from operating position:
 This subclass is indented under subclass 129.  Device in which the stripper may be removed from or placed in product-moving relation with the tool, to disable the stripper or enable it to perform its function, either at the will of the operator or by the machine itself during its operation.
  
[List of Patents for class 83 subclass 131]    131Latched stripper released by tool return:
 This subclass is indented under subclass 129.  Device in which means are provided to lock the stripper in product contacting position, and the movement of the tool out of cutting engagement with the work actuates a mechanism to release the lock after the tool is withdrawn from the product, so as to permit the stripper to withdraw.

SEE OR SEARCH THIS CLASS, SUBCLASS:

125,for a similar device operative with a hollow cutter.
399,for other interlock means in a cutting machine.
  
[List of Patents for class 83 subclass 132]    132Plural strippers operative upon plural tools:
 This subclass is indented under subclass 129.  Device wherein more than one stripper is provided to strip a multiplicity of tools, and each stripper acts to remove the product from only one tool.
  
[List of Patents for class 83 subclass 133]    133Single stripper operative upon plural tools:
 This subclass is indented under subclass 129.  Device wherein one stripper is provided which acts to remove the product simultaneously from more than one tool.
  
[List of Patents for class 83 subclass 134]    134Spring arm stripper:
 This subclass is indented under subclass 129.  Device in which the part of the stripper which contacts the product comprises, or is mounted on one end of, a thin flexible resilient element; and the other end of the element is fixedly attached to some part of the machine.
  
[List of Patents for class 83 subclass 135]    135Linkage actuated:
 This subclass is indented under subclass 129.  Device wherein the stripper-moving instrumentality comprises one or more levers which are pivoted to a part of the machine or to each other.

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127,for an ejector-actuating linkage which is actuated by a cam.
131,for a linkage which latches a stripper in position and which is released by the return movement of the tool.
  
[List of Patents for class 83 subclass 136]    136Carried by moving tool element or its support:
 This subclass is indented under subclass 129.  Device in which the stripper is mounted on a moving tool or its support* and moves with respect to, and in timed relation with, said tool and support.

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115+,for a stripper or ejector mounted on a rotary tool.
126,for an ejector carried by a cutter which cooperates with a hollow tool.
218,for a pilot or locating pin carried by a moving tool or tool support.
294,319, and 382, for a work gripper or clamp mounted on a moving tool or tool support.
395,for a work-stop abutment mounted on a moving tool or tool support.
  
[List of Patents for class 83 subclass 137]    137Fluid pressure actuated stripper:
 This subclass is indented under subclass 136.  Device in which the stripper is actuated by means applying a force to a gas or liquid, which gas or liquid applies a moving force (directly or indirectly) to the stripper.

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390,and 461, for a cutting machine having a fluid pressure actuated clamp.
639,for fluid pressure tool actuating means.
  
[List of Patents for class 83 subclass 138]    138Stripper biased against product:
 This subclass is indented under subclass 136.  Device in which (a) the stripper or its mounting includes an elastic, resilient and/or flexible element, which element is compressed or extended during the cycle of operation, and whose tendency to return to its normal state urges the product away from the tool; or in which (b) the stripper is mounted on the tool or tool support by means of a lost-motion connection (in which gravity acts on the stripper to urge the stripper into contact with the product as the tool is withdrawn).
(1) Note. An original patent for an elastic, rubberlike, resilient mounting for a nonelastomeric stripper will be found in this subclass (138).

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128,for a resiliently biased stripper which ejects a product from within a hollow cutter.
134,for a tool-synchronized stripper which is carried on an end of a spring arm.
142+,for a tool-synchronized stripper not carried by the moving tool or its support and which is biased against the product.
  
[List of Patents for class 83 subclass 139]    139Elastomeric stripper contacting product:
 This subclass is indented under subclass 138.  Device in which that portion of the stripper which engages the product is made of an elastic, rubberlike, resilient material.

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138+,for an elastic, rubberlike mounting for a nonelastomeric stripper.
  
[List of Patents for class 83 subclass 140]    140By spring means:
 This subclass is indented under subclass 138.  Device in which the compressed or extended element is an elongated or coiled flexible and resilient metallic member (e.g., coil spring).

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128,for a spring-urged means to eject product from a hollow cutter.
134,for a device in which a tool-synchronized stripper is carried on an end of a spring arm.
143,for a similar device which is not carried by the moving tool or its support.
  
[List of Patents for class 83 subclass 141]    141By free weight of stripper:
 This subclass is indented under subclass 138.  Device in which the mounting of the stripper on the tool or tool support* permits relative motion of the stripper with respect to such tool or support, and in which the force of gravity acts to urge the stripper against the product to separate the product from the tool.
  
[List of Patents for class 83 subclass 142]    142Stripper biased against product:
 This subclass is indented under subclass 129.  Device in which (a) the stripper or its mounting includes an elastic resilient and/or flexible element, which element is compressed or extended during the cycle of operation, and whose tendency to return to its normal state urges the product away from the tool; or in which (b) the stripper is mounted on its support by means of a lost-motion connection in which gravity acts on the stripper to urge the product away from the tool.

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128,for a resiliently biased means which ejects a product from within a hollow cutter.
134,for a tool-synchronized stripper which is carried on an end of a spring arm.
138+,for a stripper biased against the product, which stripper is carried by the moving cutting element or its support.
  
[List of Patents for class 83 subclass 143]    143Spring biased stripper:
 This subclass is indented under subclass 142.  Device in which the compressed or extended element is an elongated or coiled flexible and resilient metallic member (e.g., coil spring).
  
[List of Patents for class 83 subclass 144]    144Manually operated stripper:
 This subclass is indented under subclass 111.  Device wherein movement of the means (stripper) for causing relative motion between the cutter and product is effected by hand manipulation of the stripper itself or of a device which controls its movement.
  
[List of Patents for class 83 subclass 145]    145Stationary stripper:
 This subclass is indented under subclass 111.  Device in which the means (stripper) for causing relative motion between the cutter and product is fixed with respect to machine parts which do not have a cyclic motion.
  
[List of Patents for class 83 subclass 146]    146Stripper encircles moving tool:
 This subclass is indented under subclass 145.  Device wherein the stationary stripper substantially surrounds a tool during its cyclic motion.
  
[List of Patents for class 83 subclass 147]    147Blockable exit port:
 This subclass is indented under subclass 109.  Device which includes a housing having a product delivery opening, which opening is adapted to be selectively obstructed so as to prevent egress of the product (thus also preventing entry of undesired objects) therethrough.
(1) Note. The instrumentality which effects the blocking may be a cutting tool.
  
[List of Patents for class 83 subclass 148]    148Tool conforming member interposed between tool and work:
 This subclass is indented under subclass 109.  Device in which a flexible element is located between the tool and the work such that, in cutting, the flexible member will take the shape of the tool, transmit the cutting force of the tool to the work, and then urge the product away from the tool which has produced it.
(1) Note. The subject matter of this subclass is distinguished from that of subclasses 111+, in that a tool provided with a flexible element of the type of this subclass does not directly engage the work or product.
  
[List of Patents for class 83 subclass 149]    149Including means to move, or resist movement of, cut pieces along delivery chute:
 This subclass is indented under subclass 109.  Device comprising a guideway, inclined to the horizontal and vertical planes and so disposed as to receive cut pieces for movement therealong, provided with means for engaging a cut piece to urge it along the guideway, or to brake it, while it is disposed on or within the confines of the guideway.

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198Conveyors: Power-Driven,   subclass 534 for a power-driven conveyor combined with a chute having means to retard movement of the conveyed load.
  
[List of Patents for class 83 subclass 150]    150Active delivery means mounted on tool support:
 This subclass is indented under subclass 109.  Device including means for positively moving the product, said means being supported against gravity by a tool support*.
  
[List of Patents for class 83 subclass 151]    151Product mover including gripper means:
 This subclass is indented under subclass 109.  Device in which the means for propelling the product includes means to engage and firmly secure the product against movement relative to the propelling means at least during movement of the product away from the cutting zone.
(1) Note. Included within the scope of the term "gripper means" are devices which engage and grasp two opposed surfaces of the product as well as devices which engage one surface and retain it against the propelling means (e.g., a magnet, clamp jaw, perforating pin, suction gripper, etc.).

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198Conveyors: Power-Driven,   subclasses 468.2+ and 470.1+ for a conveyor having load gripping members, subclasses 679 and 690 for a conveyor having magnetic load holders, and subclasses 692+ for a conveyor having load impalers.
271Sheet Feeding or Delivering,   subclasses 204+ for sheet delivery apparatus including means to grip the sheet.
  
[List of Patents for class 83 subclass 152]    152Suction gripper:
 This subclass is indented under subclass 151.  Device in which the securing means includes a perforated surface and means to draw air through the surface so as to cause the product to adhere to said surface under the influence of atmospheric pressure.

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198Conveyors: Power-Driven,   subclasses 428 , 438, 449+, and 689.1 for a conveyor having means for applying suction to the conveyed load.
271Sheet Feeding or Delivering,   subclasses 194+ for sheet delivery apparatus including pneumatic means.
  
[List of Patents for class 83 subclass 153]    153Reciprocating product handler:
 This subclass is indented under subclass 151.  Device in which the propelling means moves to and from the cutting zone in a straight line.

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198Conveyors: Power-Driven,   subclasses 468.2+ and 470.1+ for a reciprocating conveyor having load-gripping members.
271Sheet Feeding or Delivering,   subclass 85 for sheet delivery apparatus including reciprocating sheet gripping means.
  
[List of Patents for class 83 subclass 154]    154Rotating or oscillating product handler:
 This subclass is indented under subclass 151.  Device in which the propelling means moves in an arc of a circle, either in the same direction or to and from the cutting zone.

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198Conveyors: Power-Driven,   subclasses 468.2+ and 470.1+ for an oscillating conveyor having load-gripping members.
271Sheet Feeding or Delivering,   subclass 82 for rotary sheet delivery apparatus having gripper means.
  
[List of Patents for class 83 subclass 155]    155Endless conveyor:
 This subclass is indented under subclass 109.  Device which comprises a continuous web- or strand-like member (e.g., a belt or chain) which moves the product while the product is supported thereby.
(1) Note. In the case wherein the product conveyor also is effective to move the work into cutting position, a patent directed to such device will be placed originally in this subclass only if the conveyor is claimed in terms of its specific product handling function.

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88,and 91+, for a conveyor operative to move a stack of product pieces.
94+,for a conveyor which functions to deliver product pieces to a stack holder.

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198Conveyors: Power-Driven,   subclasses 804+ for an endless belt conveyor.
271Sheet Feeding or Delivering,   subclasses 67 , 69 and 198+ for sheet delivery apparatus including endless conveyor means.
  
[List of Patents for class 83 subclass 155.1]    155.1And means to remove product therefrom:
 This subclass is indented under subclass 155.  Device including means to remove the product from the endless conveyor.
(1) Note. In many of the devices in this subclass, the same conveyor moves both work and product.

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418+,for a work conveyor means and additional means to engage the work and orient it relative to a tool station.
732,for means to position work transversely on a moving conveyor.

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198Conveyors: Power-Driven,   subclasses 367+ , 370.07 through 370.09, 370.1, 370.11 through 370.13, 426+, 463.1+, 497, 597+, 599, 637, and others for means for moving an article or material off a conveyor.
  
[List of Patents for class 83 subclass 156]    156Roller(s):
 This subclass is indented under subclass 109.  Device which includes one or more cylindrical or spherical members, each rotatable about an axis transverse to the path of the product and supporting, guiding or moving the product in said path.
(1) Note. Patents disclosing either idling or powered rollers, in train or in opposed pairs, are included in this subclass.

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193Conveyors, Chutes, Skids, Guides, and Ways,   subclasses 35+ for rollerways.
198Conveyors: Power-Driven,   subclasses 385+ , 387, 501, 604, 608, 611+, 624, 779, and 780+ for rollers carrying a load, subclass 840 for rollers guiding a load supported on an endless belt conveyor, and subclasses 359+ and 539 for a nonpowered roller conveyor combined with a power-driven conveyor.
271Sheet Feeding or Delivering,   subclasses 71 , 72 and 314+, for sheet delivery apparatus including rotary conveyor means.
  
[List of Patents for class 83 subclass 157]    157Tiltable or withdrawable support:
 This subclass is indented under subclass 109.  Device which permits downward movement of the product by either pivotal movement of a means holding the product against gravity, thereby to provide an inclined surface down which the product may slide; or by complete removal of such means from beneath the product, thereby to permit free fall.
(1) Note. The platform of this subclass must be moved after, or simultaneously with, the cutting stroke which produces the product to be handled by the platform. If a platform is, for instance, tilted to an inclined position prior to the cutting stroke (so that the product, instead of being supported on a platform which may tilt to urge the product to slide, is allowed to drop onto an inclined plane), such platform is considered an adjustable or movable chute or plane, the search for which is in subclass 165.

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165,for a chute or inclined plane down which product may slide; and see (1) Note, above.

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198Conveyors: Power-Driven,   subclasses 535+ for a chute swingable between horizontal and inclined positions.
  
[List of Patents for class 83 subclass 158]    158Means to move product laterally:
 This subclass is indented under subclass 109.  Device provided with means to engage a product piece and move it bodily in a straight line path in a direction which is opposite or transverse to the direction in which (a) the piece is moving as it leaves the tool or (b) the work is moving as it enters the cutting zone.

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198Conveyors: Power-Driven,   subclass 598 for an endless belt conveyor that shifts a load laterally of another conveyor.
  
[List of Patents for class 83 subclass 159]    159Oscillating means:
 This subclass is indented under subclass 158.  Device in which the product moving means is pivoted and has a to-and-fro motion about said pivot.

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198Conveyors: Power-Driven,   subclasses 370.07 through 370.09, 370.1, 370.11 through 370.13, 426+, 468.1+, 598 and others for a swingable conveyor that shifts a load laterally of another conveyor.
  
[List of Patents for class 83 subclass 160]    160Reciprocating means:
 This subclass is indented under subclass 158.  Device in which the product engaging portion of the product moving means has a translatory to-and-fro motion in a plane.

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198Conveyors: Power-Driven,   subclasses 370.07 through 370.09, 370.1, 370.11 through 370.13, 429+, 597+, and others for a linearly reciprocating conveyor that shifts a load laterally of another conveyor.
  
[List of Patents for class 83 subclass 161]    161Means to move product in a nonrectilinear path:
 This subclass is indented under subclass 109.  Device in which the propelling means moves the product otherwise than in a straight line.

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150,for such means mounted on a tool support.
  
[List of Patents for class 83 subclass 162]    162Guide:
 This subclass is indented under subclass 109.  Device including passive means which is operative to define, limit, or change the path of (without terminating), product movement (i.e., to direct, wholly or partially, the course of moving product).

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105+,for a guide which serves to separate moving product portions.
438+,for means to guide moving work; and see the Notes thereto.

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198Conveyors: Power-Driven,   subclasses 351+ , 367, 442, 525, 599, and 633+ for passive means for changing the direction of movement of a conveyed load.
  
[List of Patents for class 83 subclass 163]    163Abutment in path of product being moved by work feeder:
 This subclass is indented under subclass 162.  Means in which the product is moved by the work or by means that moves work to the tool station, and in which the passive means is so disposed as to present an obstacle or obstruction to the unimpeded passage of product being so moved; the result being initiation of, or a change in, relative directions of motion of the product and the work or work moving means.
  
[List of Patents for class 83 subclass 164]    164Product-diverting conduit in or from hollow tool:
 This subclass is indented under subclass 162.  Device in which the guide is a tubular cavity within a hollow tool or its support, or in a member rigid with the tool or its support, said tool having an aperture and a continuous cutting edge bounding the open end of said aperture and together with said tubular cavity forming a path for the product pieces, away from the cutting zone, which does not follow only a single straight line.
(1) Note. A mere passage coextensive with the cutting edge opening and extending rectilinearly within the hollow tool is not considered a guide for this subclass.

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97,for a device including means to form or hold product pieces in stacked relation upon emergence from a hollow cutter.
  
[List of Patents for class 83 subclass 165]    165Inclined conduit, chute or plane:
 This subclass is indented under subclass 162.  Means including a supporting surface or tubular body, disclosed as extending generally from an upper location at one end to a lower at the other (but not extending solely straight up and down vertically) and so positioned that product may travel therealong or therethrough.
(1) Note. The traveling product on or in the chute, plane, or conduit may be moving under the influence of gravity. If, however, it is moved by claimed mechanical moving means, a patent claiming such guide and moving means will be placed originally in subclass 149 or another subclass devoted to product moving means, and may be cross-referenced in this subclass; if no product moving means is claimed, a patent disclosing such combination (and claiming only the cutter and guide) will be placed originally in this subclass.

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149,for means which moves cut pieces along a chute or inclined plane.
157,for a device having a tiltable product support down which the product may slide.

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193Conveyors, Chutes, Skids, Guides, and Ways,   appropriate subclass for a gravity type conveyor.
198Conveyors: Power-Driven,   subclasses 311 , 359+, 523+, and others for a chute or other gravity conveyor combined with a power-driven conveyor.
  
[List of Patents for class 83 subclass 166]    166Abutment interposed in path of free fall or flight of product:
 This subclass is indented under subclass 162.  Means comprising an obstacle so placed as to be struck by a product piece as the latter travels through space while unsupported against the force of gravity.

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165,for devices in which the abutment is an inclined chute, plane or conduit.

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198Conveyors: Power-Driven,   subclass 599 for a guide that deflects a load after it moves off a conveyor.
  
[List of Patents for class 83 subclass 167]    167WITH RECEPTACLE OR SUPPORT FOR CUT PRODUCT:
 This subclass is indented under the class definition.  Device provided with a container or platform to receive and retain the product piece.

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78+,for a device having a receptacle or support provided with a clamp to stop and hold the product in the receptacle or on the support.
84+,for a receptacle or support which is taught as holding a pile (including stack) of product pieces; and see the Notes thereto.
102+,for means to direct product pieces selectively into any one of a plurality of receptacle.

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232Deposit and Collection Receptacles,   subclass 8 for a fare box which receives a ticket and punches it as it is introduced into the device.
  
[List of Patents for class 83 subclass 168]    168WITH MEANS TO CLEAN WORK OR TOOL:
 This subclass is indented under the class definition.  Device wherein means are provided to remove undesired foreign matter from the work or the tool.

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15+,22, and 24, for a method of handling work, or product, including application of fluid to same.
98+,for product handling device including fluid current application means which means may also be utilized to remove waste products of the cutting operation.

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15Brushing, Scrubbing, and General Cleaning,   appropriate subclasses, for cleaning means broadly; and see search Notes thereto.
173Tool Driving or Impacting,   subclasses 197+ for a tool driving or impacting means having a work cleansing feature.
  
[List of Patents for class 83 subclass 169]    169WITH MEANS TO APPLY TRANSIENT NONPROPELLANT FLUENT MATERIAL TO TOOL OR WORK:
 This subclass is indented under the class definition.  Device that includes means to direct upon or to the tool or work a quantity of liquid, gaseous, or pulverulent material; which material is not intended to form a permanent coating on, and does not effect movement of, such tool or work.

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15+,17, 22, and 24, for method of handling work, or product, including application of fluid to same.
53,and 177, for means and process, respectively, for cutting by direct application of fluent pressure.
98+,for product handling by fluid current means.
168,for means to clean work by fluid application.
407,for apparatus to move work by fluid current.

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30Cutlery,   subclasses 123.3+ , for cutting implements having means to direct a fluid upon the tool or a guide in contact therewith.
118Coating Apparatus,   subclass 15 and 35+ for cutter combined with means to apply a substantially permanent coating.
  
[List of Patents for class 83 subclass 170]    170WITH MEANS TO CONTROL OR MODIFY TEMPERATURE OF APPARATUS OR WORK:
 This subclass is indented under the class definition.  Device which includes means to maintain or alter the temperature of the device or work.
(1) Note. Heating or cooling of the work to the extent of changing its state (e.g., from solid to liquid), other than for the purpose of effecting a cut by means of a solid tool, has been considered a shaping or treating operation beyond the scope of this class (83). Patents for such treating or shaping means combined with cutting means have been placed elsewhere; for example, on the basis of the type of material so shaped or treated.
(2) Note. The patents of this and the indented subclass primarily differ from related devices in Class 219, Electric Heating, in that the tool herein disclosed maintains physical contact with, and bodily penetrates the workpiece during the cutting operation; even though melting of the workpiece is achieved during such tool penetration.

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15+,for corresponding process.
169,for apparatus for applying a transient, nonpropellant fluid to the tool or work, which liquid may heat, cool, or maintain the temperature of, the tool or work.

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62Refrigeration,   appropriate subclasses, particularly subclasses 56+ for methods and subclasses 320+ for apparatus, for cutting combined with freezing or combined with cooling of the type classified in that class (62).
219Electric Heating,   subclasses 68+ for cutting including electrically heating metallic work.
264Plastic and Nonmetallic Article Shaping or Treating: Processes,   subclasses 138+ for processes of molding and shaping within the class definition, when combined with a cutting or severing step and see (1) Note above.
  
[List of Patents for class 83 subclass 171]    171Of tool:
 This subclass is indented under subclass 170.  Device in which the temperature controlling means maintains or alters the temperature of the tool.

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16,for corresponding method.

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30Cutlery,   subclass 140 for a heated cutter including significant heating structure.
101Printing,   subclasses 8 , 9+, 21, 25, 27, and 31 for an embossing or penetrating printer with heating means.
128Surgery,   subclasses 303.14+ for a heated surgical cutter.
219Electric Heating,   subclass 241 for means to electrically heat a cutter.
  
[List of Patents for class 83 subclass 174]    174WITH TOOL SHARPENER OR SMOOTHER:
 This subclass is indented under the class definition.  Apparatus including means to dress the tool.
(1) Note. The means to dress may operate on either the active or passive cutting element.

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30Cutlery,   for a specifically recited tool of that class with a means to sharpen same.
76Metal Tools and Implements, Making,   for a specifically recited tool of that class with a means to sharpen same.
451Abrading,   for sharpening by abrading, generally.
  
[List of Patents for class 83 subclass 174.1]    174.1Spatially fixed tool:
 This subclass is indented under subclass 174.  Device wherein the dressing means acts on a tool which is (a) immovable, or (b) rotatable or oscillatable in one plane about a single, immovable axis.
(1) Note. A tool sharpener in combination with a tool which is rotatable about a movable axis or about two or more axes. (e.g., band saw) or movable into another plane, will be found in this class, subclass 174.
  
[List of Patents for class 83 subclass 175]    175WITH MEANS TO STRETCH WORK TEMPORARILY:
 This subclass is indented under the class definition.  Apparatus including means to subject the work within the cutting zone to tensile forces to effect elongation of same within its elastic limit.

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18,for a related process.

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140Wireworking,   subclasses 139+ for means to stretch and cut wire.
  
[List of Patents for class 83 subclass 176]    176WITH MEANS TO DEFORM WORK TEMPORARILY:
 This subclass is indented under the class definition.  Apparatus including means to impart an impermanent change of shape (i.e., within the elastic limit) to work material located in the cutting zone - except apparatus in which such means comprises a rotatable cylindrical anvil about which work is trained and which cooperates with another cutter to produce substantially the same cut that would be produced if the work were presented rectilinearly to such other cutter.
(1) Note. This subclass includes (but is not limited to) patents for devices which deform the work material, as above defined, and in whose operation such deformation is prerequisite to effect a predetermined line of cut; that is to say, the desired cut could not be effected in the absence of the deformation while operating the machine in the intended manner.
(2) Note. Thus, a patent directed to means for compressing, or stretching, a resilient workpiece and subsequently cutting same to impart a dished product surface configuration upon release of the deforming forces would be properly placed in this subclass.

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17+,for a corresponding method.

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226Advancing Material of Indeterminate Length,   subclass 88 for means to deform material of indeterminate length to facilitate feeding of the material.
  
[List of Patents for class 83 subclass 177]    177BY FLUID BLAST AND/OR SUCTION:
 This subclass is indented under the class definition.  Apparatus wherein one tool comprises a fluent pressurized medium which directly contacts the workpiece to effect a predetermined line of cut by displacing the portion of work so contacted past the cutting edge of a cooperating tool element or by coaction with a controlled directly opposed second fluent pressurized medium.

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53,for a method of cutting by the direct application of fluent pressure to the work.
402,for fluid current apparatus for moving work past a stationary cutter in a continuing movement.
  
[List of Patents for class 83 subclass 178]    178BY TOOL INSIDE HOLLOW WORK:
 This subclass is indented under the class definition.  Means in which a tool is disposed within a generally tubular portion of a workpiece and, either alone or in cooperation with another tool, operates on the internal surface of the piece.
(1) Note. The "generally tubular portion" comprises a wall which presents, in transverse cross-section, a substantially closed perimeter.
(2) Note. The internal tool must be in position within the hollow work at initiation of cutting.
(3) Note. Patents disclosing a tool oscillating about a fixed center during the cutting stroke and its retraction therefrom will be found in this subclass. Patents disclosing other tool motions will be found in subclasses indented hereunder.

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196+,for cutting work (which may be hollow) by the misalignment of aligned apertures.
315+,and 597+, for an oscillating tool which does not cut from within a hollow workpiece.

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82Turning,   subclass 82 for a turning device of the severing or cutoff type wherein the tool, or tools, lies within the work.
166Wells,   subclasses 55+ for apparatus for cutting a well conduit in situ and subclasses 297+ for processes of cutting a well conduit in situ.
175Boring or Penetrating the Earth,   subclasses 2+ for subject matter relating to a device for firing a bullet or exploding a shaped charge within an inaccessible bore to penetrate the earth formation or perforate or cut a casing or other wall member in the bore.
  
[List of Patents for class 83 subclass 179]    179Work pre-packed with internal tool(s):
 This subclass is indented under subclass 178.  Apparatus wherein a tool (or tools) is inserted within a workpiece, prior to the introduction of the workpiece into the cutting zone, in such manner that the tool derives substantially all of its support either directly or indirectly from the workpiece itself.
  
[List of Patents for class 83 subclass 180]    180With expanding mandrel:
 This subclass is indented under subclass 178.  Apparatus provided with a work support including means to enlarge a cross-sectional portion thereof, so that such support will frictionally engage the internal surface of the tubular work.
(1) Note. The expanding mandrel may function to immobilize for work and/or to position the internal tool for cutting.

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623,for means to move a cooperating cutter member.

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269Work Holders,   subclass 52 for an expanding mandrel which is not a chuck or socket.
279Chucks or Sockets,   subclasses 2.01+ for an expanding mandrel in the form of a chuck or socket.
  
[List of Patents for class 83 subclass 181]    181Interrelated tool feed means and means to actuate work immobilizer:
 This subclass is indented under subclass 178.  Apparatus wherein means to move, or render active, means to maintain or retain work, or means to move, or render active means presenting an obstacle or bar to work movement; is identical with or cooperates significantly with means to move the tool in its cutting cycle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

374+,for means as above defined but not related to a tool inside hollow work; and see search Notes thereto.
  
[List of Patents for class 83 subclass 182]    182Actuated clamp element and work holder coact to position work:
 This subclass is indented under subclass 181.  Means wherein a work immobilizing element cooperates with a work support to grip the work frictionally, to move the work into aligned relation with the tool, and to hold it in such position.

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206,and 465, for related clamp structure.
418+,with additional means to engage and orient work.
  
[List of Patents for class 83 subclass 183]    183Synchronized t