An apparatus for use in the preparation of fibrous traces from a unixily oriented extruded polymeric film. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements introduced in the object of the main patent number 366,723, requested on may 2, 1969, by: "an apparatus for use in the preparation of fibrous webs from uniaxially oriented extruded polymer film" according to which an apparatus for use in the preparation of fibrous web from a mobile, extruded and uniaxially oriented polymer film, by cutting elongated strips in said film, comprises a first roller and a second roller arranged on their respective parallel circumferential surfaces and closely adjacent and spaced apart from one another. Another, means for rotating said first roller and said second roller substantially synchronously and in relatively opposite directions to each other, helical grooves formed in the circumferential surface of said second roller, helical rows of cutting elements extending radially from the circumferential surface of said first rod illo, engaging selected rows of the cutting elements with the respective helical grooves selected when rotating said first roller and said second roller, the improvement in which said helical grooves of the second roller are filled with a solid elastic material. (Machine-translation by Google Translate, not legally binding)