Device for preparing pieces of wrapping material for use as the inner wrap in hinge lid cigarette packs

Claim 1

In a machine for producing inner wrappers for hinge-lid packets of cigarettes, the combination of; a pair of driving rolls having axes parallel to one another the rolls being disposed to engage mutually opposite surfaces of a continuous web of flexible material for making inner wrappers of batches of cigarettes to be packed in packets of cardboard material having hinge-lids; means for rotating the driving rolls in mutually opposite directions for movement of the web in a direction parallel to longitudinal side edges of the web and transverse of the cigarettes, and of the axes of the driving rolls; a pair of cutting rolls having axes parallel to those of the driving rolls, each cutting roll having cutting means thereon extending along the roll and transversely of the web; means for rotating the cutting rolls in mutually opposite directions to cut longitudinally successive sheets from the web on rotation of the cutting rolls, each sheet to provide an entire one of the inner wrappers for a batch of cigarettes to be packed in one of the packets having a hinge-lid; a scoring disk coaxial with one of the driving rolls, rotatable therewith by the means for rotating it and having scoring edge portions for scoring a line of sheet-weakening indentations, parallel to the longitudinal side edges of the web and to the direction of the movement of the web, in each of the sheets, the scored edge portions being spaced apart to leave, in the line of sheet-weakening indentations, sheet portions linking the removable part with the remainder of the wrapper and disposed at corners of the wrapper; and a back-up roller, generally coaxially disposed relative to the other one, of the pair of driving rolls opposite the scoring disk, to thereby provide an end part of each inner wrapper extending transversely of the cigarettes adjacent one end thereof and readily removable from the entire inner wrapper by applying a tractive force to the end part when the hinge-lid of the packet has been opened, for manual breaking of the wrapper along the line of sheet-weakening indentations.