A procedure with its corresponding apparatus for the placement of marks between two successive layers of napas of threads or fibers during the rolling of these in a coil (Machine-translation by Google Translate, not legally binding)

摘要

A method with its corresponding apparatus for the placement of marks between two successive layers of strands of fibers or fibers during the winding of these in a coil allowing to point out particular points, characterized in that the mark is applied by means of an air current on the face of the moving web, which comes in contact with the last layer of threads wound on the reel, by means of a planned arrangement that maintains the mark until its deposit in the winding. (Machine-translation by Google Translate, not legally binding)