Patent ID: 7938355

Claim:
A device for feeding plies of web material, comprising: at least two paths including a first path for a first web material and a second path for a second web material at least partly superposed on each other, the first web material and the second web material being adjacent to each other in an area of superposition; at least one supporting surface, said supporting surface having an initial curved portion, at least part of said first path and of said second path extending above said supporting surface, said first path being disposed adjacent to said supporting surface, said second path being arranged above said first path, and said initial curved portion having a convexity facing said first path; at least one air supply system between the first path and said supporting surface, to enhance support of the web material with respect to the supporting surface; and along each of said first path and said second path, respectively, at least one first guide roller for the first web material and at least one second guide roller for the second web material.