| B | SK | PERFORMING OPERATIONS; TRANSPORTING |
| B31 | KL | MAKING PAPER ARTICLES; WORKING PAPER (making layered products not composed wholly of paper or cardboard B32B; handling thin material, e.g. sheets, webs, B65H) |
| B31C | UKL | MAKING WOUND ARTICLES, e.g. WOUND TUBES (characteristics relating to the working of plastics B29; shaping of plastics or substances in a plastic state B29C) |
| B31C 1/00 | HGR | Forming paper tubes or pipes by feeding at right angles to the winding mandrel centre line |
| B31C 1/02 | UGR1 | | . | Machines therefor having additional mandrels |
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| B31C 1/04 | UGR1 | | . | and forming a tube end into a container bottom |
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| B31C 1/06 | UGR1 | | . | and inserting into a tube end a bottom to form a container |
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| B31C 1/08 | UGR1 | | . | Accessories of machines therefor not otherwise provided for |
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| B31C 3/00 | HGR | Forming paper tubes or pipes by feeding obliquely to the winding mandrel centre line |
| B31C 3/02 | UGR1 | | . | and inserting into a tube end a bottom to form a container |
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| B31C 3/04 | UGR1 | |
| B31C 5/00 | HGR | Forming paper tubes or pipes without mandrels |
| B31C 7/00 | HGR | Forming conical paper articles by winding (winding blanks B31B) |
| B31C 7/02 | UGR1 | |
| B31C 7/04 | UGR2 | | . . | on two or more mandrels |
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| B31C 7/06 | UGR3 | | . . . | and inserting into a cone end a bottom to form a container |
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| B31C 7/08 | UGR1 | |
| B31C 7/10 | UGR2 | | . . | on two or more mandrels |
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| B31C 9/00 | HGR | Simultaneous forming of cylindrical and conical shapes by winding separate webs, e.g. forming bottles (winding blanks B31B) |
| B31C 11/00 | HGR | Paper-winding machinery combined with other machinery |
| B31C 11/02 | UGR1 | | . | for additionally shaping the articles |
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| B31C 11/04 | UGR1 | | . | for applying impregnating by coating-substances during the winding |
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| B31C 11/06 | UGR1 | | . | for drying the wound and impregnated articles |
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| B31C 13/00 | HGR | Making wound articles not otherwise provided for |