| 摘要 |
<p>A gumming device (1) wherein two coaxial disks (4, 5) of equal diameter are rotated synchronously at continuous speed, and define, in between, a central cavity (9) communicating on one side with a tank (38) of liquid gum under pressure, and on the other side with the outside atmosphere through an opening (12), which extends along at least one portion of the outer circumference (13) of the two disks (4, 5) and is variable in width (A) by varying the distance between the two disks (4, 5).</p> |
