| 摘要 |
Apparatus for the production of reels of extendable film prestretched longitudinally and of varying weight, from normal reels of extendable film, characterized in that it comprises a container (1) closed by a cover (3) inside which means for rotatably supporting a reel (B) supplying the extendable film as well as parallel prestretching rollers (8, 108) and a spindle (15) for storing the prestretched film are arranged, these means being all operated by a centralized drive unit (7) and means being envisaged for programming the operation of the apparatus, for the production of reels of prestretched film with the weight required in each case.
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