Apparatus for Processing a Moving Web of Material
AssigneeBritish American Tobacco (Investments) Limited
InventorsDavid Ing, Martin Daw, Glynn Sims, Philip Hyde
Life of this patent
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Abstract
A drum assembly for processing a moving web of material is disclosed. The drum assembly has an outer drum with an axis of rotation and a plurality of support members on which cut patches of the moving web of material are supported as the drum rotates together with said support members about said axis. A cam is disposed within the outer drum and the support members and the cam cooperate with each other as the outer drum rotates relative to the cam to move the support members in an axial direction to alter the spacing between cut web patches on said support members.
Claims19
A drum assembly for processing a moving web of material, comprising:
- an outer drum having an axis of rotation,
- a plurality of support members on which cut patches of the moving web of material are supported as the drum rotates together with said support members about said axis, and
- a cam disposed within the outer drum,
- wherein the support members and the cam cooperate with each other as the outer drum rotates relative to the cam to move the support members in an axial direction to alter the spacing between cut web patches on said support members.
A method of processing a moving web of material comprising supporting cut patches of said web on support members of an outer drum of a drum assembly as it rotates about its axis of rotation, the support members cooperating with a cam disposed within the outer drum so that the support members move in an axial direction as the outer drum rotates to alter the spacing between cut web patches on said support members.
A method of processing a moving web of material, comprising:
- cutting a web of material laterally and longitudinally to form cut patches,
- supporting the cut patches of the web on a plurality of support members on an outer drum of a drum assembly,
- rotating the outer drum about an axis of rotation engaging each of the support members with a cam track on a cam surface of a cam,
- moving the support members in an axial direction as the outer drum rotates to alter the spacing between said cut web patches on the support members.
Dependencies are inferred from the claim text.