| 摘要 |
The present invention relates to papermaking machines, more precisely to a scraper blade 4 which contacts the surface 2 of a cylinder or roll in order to keep the cylinder or the roll clean and in order to free a continuous material web 1 from the surface 2 of the cylinder or roll by the use of a medium current. According to the invention, the scraper blade 4 for the medium has at least one inner flow chamber 7, passage, duct, duct system, etc. for the medium current. <IMAGE>
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