Special design or construction

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Hammers; Forging machines with hammers or die jaws acting by impact > Special design or construction

CPC:

Hammers; Forging machines with hammers or die jaws acting by impact (hand hammers B25D; electrical features in section H) > Special design or construction

IPC and CPC are identically structured here. All 5 subcodes exist in both systems.

Child Classifications

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B21J 7/04 Power hammers IPC+CPC Available in IPC and CPC
B21J 7/06 Drop hammers IPC+CPC Available in IPC and CPC
B21J 7/10 with both drive and hammer connected to a fulcrumed lever, e.g. tail hammers IPC+CPC Available in IPC and CPC
B21J 7/14 Forging machines working with several hammers +1 CPC IPC+CPC Available in IPC and CPC
B21J 7/18 Forging machines working with die jaws, e.g. pivoted, movable laterally of the forging or pressing direction, e.g. for swaging IPC+CPC Available in IPC and CPC