Method and apparatus for cutting a continuously moving web
AssigneeAktiebolaget Broderne Herrmann
InventorLennart Edstrom
Life of this patent
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Abstract
Continuous cutting of a web, in motion, is effected by passing the web over a roll against which web and roll there is pressed a rotatable circular cutter, at an angle with respect to the longitudinal axis of the roll.
Claims13
A method of cutting a web during its continuous movement, which comprises
- passing the web over a roll having a longitudinal axis,
- pressing against the roll and therewith against the web a freely rotatable circular cutter freely movable, along the longitudinal axis of the roll, across the web at an angle in relation to the longitudinal axis of the roll,
- moving said circular cutter across the web, said movement being effected only by the diagonal orientation of the cutter to the web and by the continuous movement of the web.
An apparatus for cutting a web during its continuous movement, characterized in that it comprises a roll having a longitudinal axis, on which the web runs, a cradle extending along the roll, a slide freely movable along the cradle, and a freely rotatable circular cutter attached to the slide and adapted to be pressed against the roll, which cutter is located at a certain slanting angle relative to the longitudinal axle of the roll and freely movable across the web, said circular cutter being freely movable across the web only by the diagonal orientation of the cutter to the web and by the continuous movement of the web.
Dependencies are inferred from the claim text.