Version: 2025.01
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CPC | COOPERATIVE PATENT CLASSIFICATION | |||
| B21H | MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS (essentially from sheet metal B21D) [2018-08] NOTE
WARNING
|
B21H 1/00 |
B21H 1/02 | . | discs; disc wheels [2013-01] |
B21H 1/04 | . . | with rim, e.g. railways wheels {or pulleys} [2013-01] |
B21H 1/06 | . | rings of restricted axial length (extending closed shapes of metal bands by simultaneous rolling at two or more zones B21B 5/00) [2013-01] |
B21H 1/08 | . . | railway wheel rims [2013-01] |
B21H 1/10 | . . | rims for pneumatic tyres [2013-01] |
B21H 1/12 | . . | rings for ball or roller bearings [2013-01] |
B21H 1/14 | . | balls, rollers, cone rollers, or like bodies [2013-01] |
B21H 1/16 | . . | for bearings [2013-01] |
B21H 1/18 | . | cylinders, e.g. rolled transversely {cross-rolling} [2013-01] |
B21H 1/22 | . | characterised by use of rolls having circumferentially varying profile {; Die-rolling} [2017-08] |
B21H 3/00 | Making helical bodies or bodies having parts of helical shape (helical gears B21H 5/00; forming tubes or tube walls into helical shape B21D 11/06, B21D 15/04) [2013-01] |
B21H 3/02 | . | external screw-threads {; Making dies for thread rolling} [2017-08] |
B21H 3/022 | . . | {combined with rolling splines, ribs, grooves or the like, e.g. using compound dies} [2013-01] |
B21H 3/025 | . . | {Rolling locking screws} [2013-01] |
B21H 3/027 | . . | {Rolling of self-tapping screws} [2013-01] |
B21H 3/04 | . . | Making by means of profiled-rolls {or die rolls} [2013-01] |
B21H 3/06 | . . | Making by means of profiled members other than rolls, e.g. {reciprocating flat dies or} jaws, moved longitudinally or curvilinearly with respect to each other [2013-01] |
B21H 3/08 | . | internal screw-threads [2013-01] |
B21H 3/10 | . | twist-drills; screw-taps [2013-01] |
B21H 3/12 | . |
B21H 5/00 | Making gear wheels {, racks, spline shafts or worms} [2017-08] |
B21H 5/005 | . | {Worms} [2013-01] |
B21H 5/02 | . |
B21H 5/022 | . . | {Finishing gear teeth with cylindrical outline, e.g. burnishing} [2013-01] |
B21H 5/025 | . . | {Internally geared wheels} [2013-01] |
B21H 5/027 | . . | {by rolling using reciprocating flat dies, e.g. racks (B21H 5/022 takes precedence)} [2013-01] |
B21H 5/04 | . | bevel gears [2013-01] |
B21H 5/045 | . . | {Finishing bevel gear teeth, e.g. burnishing} [2013-01] |
B21H 7/00 | Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons (nails, pins B21G 3/30) [2013-01] |
B21H 7/002 | . | {Fasteners, rivets} [2013-01] |
B21H 7/005 | . | {railway sleepers or chains} [2013-01] |
B21H 7/007 | . | {Taper rolling, e.g. leaf springs} [2013-01] |
B21H 7/02 | . | spades; shovels [2013-01] |
B21H 7/04 | . | hoes [2013-01] |
B21H 7/06 | . | ploughshares; axes [2013-01] |
B21H 7/08 | . | forks; rakes {spoons} [2013-01] |
B21H 7/10 | . | knives; sickles; scythes [2013-01] |
B21H 7/12 | . | horse-shoes; articles of like shape, e.g. wear-resisting attachments for shoes [2013-01] |
B21H 7/14 | . | knurled articles [2013-01] |
B21H 7/16 | . | turbine blades; compressor blades; propeller blades [2013-01] |
B21H 7/18 | . | grooved pins; Rolling grooves, e.g. oil grooves, in articles {(B21H 5/00 takes precedence)} [2013-01] |
B21H 8/00 | Rolling metal of indefinite length in repetitive shapes specially designed for the manufacture of particular objects {, e.g. checkered sheets} [2016-08] |
B21H 9/00 | Feeding arrangements for rolling machines or apparatus manufacturing articles dealt with in this subclass [2013-01] |
B21H 9/02 | . | for screw-rolling machines [2013-01] |