Apparatus for obtaining differential tangential variable...

Details Apparatus for obtaining differential tangential variable... Apparatus for obtaining differential tangential variable...

B - Operations, Transporting

29

C

18/1039

B29C 55/02 (2006.01)

Patent

CA 1242061

ABSTRACT OF THE DISCLOSURE The invention relates to a drawing device. This device is designed such that the differential tangential speeds are variable at different points of a deformable flat film or plate that moves along at least one drawing roller rotating about an axis, said film or plate moving in a direction perpendicular to the axis of rotation of the roller and resting on a generatrix of the roller. The roller has a rotational speed N which is con- stant with time, while the distance from the supporting genera- trix of the film to the axis of rotation of the roller is vari- able with time. The invention is applicable to the drawing of plastic films.

452706

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