Apparatus and method for joining webs
AssigneeHurley Moate Engineering Company Limited
InventorTrevor F. Clements
Life of this patent
Estimating the term…
Abstract
A method of joining two flexible webs comprises bringing the webs into overlapping relationship, cutting the overlapped webs, removing a part of one or both webs from the region of the cut, and applying a length of adhesive material to marginal portions of the webs adjacent the cut. The webs may be held stationary while being joined. The cutting and joining are preferably effected simultaneously. The webs may be brought into register before cutting and joining. Adhesive material may be applied to both sides of the webs. Joining may be initiated manually or automatically in response to the speed or diameter of an expiring reel.
Claims17
A method of joining two webs of flexible material comprising bringing the webs into overlapping relationship, cutting the overlapped webs to provide two portions of each web respectively on opposite sides of the cut, removing one of the overlapped portions of one of the webs from the region of the cut so as to leave cut edges of the webs in abutting engagement across the width of the webs, and applying a length of adhesive material to marginal portions of the webs adjacent the cut to effect the join, the webs being held stationary during the cutting, removing and applying steps, said applying step comprising moving a store of said adhesive material across the webs, sensing a web side edge, applying said adhesive material in response to sensing of said web edge, sensing the other web side edge, and cutting the adhesive material in response to sensing of said other web edge.
Apparatus for joining two webs of flexible material comprising means for holding the webs in stationary overlapping relationship, means for cutting the overlapped webs so as to place a cut edge of one web in abutting engagement with a cut edge of the other web across the width of the webs, means for removing one of the webs from the region of the cut so as to expose the marginal portion of said one web, and means for applying a length of adhesive material to marginal portions of the webs adjacent the cut, the apparatus further comprising means for moving the web cutting means and the applying means across the webs, the applying means including means for severing the adhesive material, means for sensing a web side edge and for operating the severing means at a predetermined relative transverse position of said webs and said cutting means.
Apparatus as claimed in claim 18, in which the web cutting means comprises a wheel arranged to be rotated by said roller means.
Dependencies are inferred from the claim text.