| 摘要 |
<p>PCT No. PCT/SE82/00438 Sec. 371 Date Aug. 18, 1983 Sec. 102(e) Date Aug. 18, 1983 PCT Filed Dec. 22, 1982 PCT Pub. No. WO83/02250 PCT Pub. Date Jul. 7, 1983.A cutting device having a circular cutting blade which is mounted so that it can rotate and is supported so that it can be displaced across a web of material to be cut. This circular cutting blade is partially accommodated in a tubular member which is equipped with a slit and extends across the web of material. The member is of metal and spring-loaded so as to rotate towards the circular blade, causing it to rest against and co-act with the latter so that as the circular blade is displaced along the accommodating member with close contact it is made to rotate, while simultaneously being sharpened by the metal member.</p> |
