Method of making caps on a continuous production line and caps obtained thereby

摘要

A method of making caps on a continuous production line comprising: causing a first web to travel continuously in a given running direction; laying and securing transversely at substantially regular spaced intervals onto said first-named web, portions of a second web moving parallel to the direction of travel of said first web, each portion of said second web forming a separate element cut from said second web or being integral therewith so as to define rectangular elements adapted to form the crowns of the caps, the fastening of each rectangular element being performed along a line extending transversely of said running direction along a first edge of said rectangular element; forming a flat tube with longitudinal folds from said first web carrying said rectangular elements during or before assembling together the other edges of each one of said rectangular elements, both edges of each said element parallel to said running direction being secured together and the second edge of said element transverse to the first web then being folded and parallel to said first edge of each said element along which is effected its said original fastening being assembled to itself; connecting together both opposite longitudinal edges of said first web sequentially at regular spacings to form a flat tube and cutting said flat tube at regular spacings for severing individual of said caps therefrom.