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(11) | EP 0 052 592 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Heat transmission roll and a method and an apparatus for manufacturing such a roll |
| (57) The invention concerns a roll (12) comprising two superposed webs (6, 7) of material
one (6) of which is formed with transverse ridges (10). At the ridge bases and tops
are formed indentations (22). The other web (7) is provided with ribs (27) which are
positioned in nesting relationship in the indentations, whereby the webs are secured
to one another. The invention likewise concerns a method and a machine for manufacturing rolls of this kind. |