Making articles shaped as bodies of revolution

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL

Subclass:

MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS

Child Classifications

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• B21H 1/02 discs; disc wheels
• B21H 1/06 rings of restricted axial length
• B21H 1/14 balls, rollers, cone rollers, or like bodies
• B21H 1/18 cylinders, e.g. rolled transversely
• B21H 1/22 characterised by use of rolls having circumferentially varying profile