for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, (B21B1/40 takes precedence; folding sheets before, or separating layers after, rolling B21B47/00)

Introduced: September 1968

Title

Titles differ between systems:

IPC: for rolling sheets of limited length, e.g. folded sheets, superimposed sheets

CPC: for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, (B21B1/40 takes precedence; folding sheets before, or separating layers after, rolling B21B47/00)

Full Title

Full titles differ between systems:

IPC:

Metal rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations > for rolling sheets of limited length, e.g. folded sheets, superimposed sheets

CPC:

Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section (B21B17/00 - B21B23/00 take precedence; with respect to composition of material to be rolled B21B3/00; extending closed shapes of metal bands by simultaneous rolling at two or more zones B21B5/00; metal-rolling stands as units B21B13/00; continuous casting into moulds having walls formed by moving rolls B22D11/06); Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations > for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, (B21B1/40 takes precedence; folding sheets before, or separating layers after, rolling B21B47/00)

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.

Note: 2 CPC extensions are marked as secondary classification only.

Child Classifications

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B21B 2001/383 2nd only CPC only CPC only
B21B 2001/386 2nd only CPC only CPC only