Patent ID: 7770497

Claim:
A method for cutting a sleeve ( 1 ) for a paper roll core to a predetermined length by first moving the sleeve ( 1 ) in the direction of its longitudinal axis through a distance corresponding to the required cutting length and then rotating the sleeve ( 1 ) about its longitudinal axis and driving a rotating saw blade through the surface of the sleeve ( 1 ), characterized in that the sleeve ( 1 ) is rotated through a first revolution, during which the saw blade is not driven through the inner surface of the sleeve ( 1 ) wherein the sleeve ( 1 ) and the blade rotate in different directions during the first revolution, and after this the direction of rotation of the sleeve ( 1 ) is set to be the same as the direction of rotation of the blade, the blade is driven through the inner surface of the sleeve ( 1 ) and the sleeve ( 1 ) is rotated until the cut extends around the sleeve ( 1 ).