Improvements in the manufacture of continuous waves transversely waved (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the manufacture of transversely corrugated continuous sheets, characterized by the fact that in a plastic extrusion machine a continuous flat sheet is obtained, which, as it goes roaring, passes to the cylinders of a calender, where, after passing through a heating zone, in which the sheet acquires the right degree of plasticity, it is introduced across its entire width between two series of rollers, constituents of an inverting device, arranged as endless, rotating bands in opposite directions, in which the rollers of each series, endowed with freedom of rotation, are equidistant from each other and with those of the other series, between which they are reciprocally interleaved, this latter distance being adjustable in order to vary the amplitude of the ripple of the sheet, after which, and once cooled, it is rolled. (Machine-translation by Google Translate, not legally binding)