Patent ID: 7765908

Claim:
A cutting and nipping device for cutting and nipping a web, comprising: a first cutting cylinder having a first segmented cutting blade with axially spaced first blade edges and having first blade sides and a first cutting cylinder nipping surface extending circumferentially about the first cutting cylinder from the first blade sides; and a first anvil cylinder having a first anvil cylinder nipping surface extending circumferentially about the first anvil cylinder; the first cutting cylinder nipping surface and the first anvil cylinder nipping surface providing a first nip for gripping the web about the first segmented cutting blade, the first blade edges extending radially beyond the first cutting cylinder nipping surface when the first blade edges are apart from the first anvil cylinder, a second cutting and nipping device for cutting and nipping the web, the second cutting and nipping device having: a second cutting cylinder, the second cutting cylinder having a second segmented cutting blade with axially spaced second blade edges and a second cutting cylinder nipping surface extending circumferentially about the second cutting cylinder from the second blade edges; and a second anvil cylinder, the second anvil cylinder having a second anvil cylinder nipping surface extending circumferentially about the second anvil cylinder; the second cutting cylinder nipping surface and the second anvil cylinder nipping surface providing a second nip for gripping the web about the second segmented cutting blade the second blade edges extending radially beyond the second cutting cylinder nipping surface when the second blade edges are apart from the second anvil cylinder, the segments of the first segmented cutting blade being axially offset from the segments of the second segmented cutting blade, such that the first segmented cutting blade makes a perforation cut in the web and the second segmented cutting blade converts the perforation cut into a full cut of the web.