| 摘要 |
In order to increase the cutting speed and also to provide a simple structure, the cutting tools are shaped like a plurality of propeller blades (18) which are arranged on a supporting beam (9) in such a way that they intermesh with one another. They are respectively driven synchronously in opposite directions, without coming into contact with one another. A cutting apparatus of this type is mainly used for cutting continuously moving mineral fibre webs 8. <IMAGE>
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