Manufacturing container or tube from paper; or other manufacturi – With cutting – breaking – tearing – or abrading – With scrap material separation or removal
Patent
1993-08-03
1994-03-29
Lavinder, Jack
Manufacturing container or tube from paper; or other manufacturi
With cutting, breaking, tearing, or abrading
With scrap material separation or removal
493357, 493362, 493363, B65H 3510, B65H 4522, B65H 4528
Patent
active
052980090
ABSTRACT:
A machine for forming letter sheets from a paper web having regularly spaced transverse cut lines extending inwardly from pin hole edges and leaving a perforated but uncut middle portion has a tractor feed, a slitter for removing the pin hole edges of the web, an in-line Z-folder, pinch rollers and a burster. The Z-folder has a length which is one and half to two times the spacing between transverse perforation lines. The speed of the tractor feed drive and pinch roller drive are monitored and a sensor senses each transverse cut so that the speed of the pinch rollers may be synchronised with the tractor feed.
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patent: 4533130 (1985-08-01), Suter
patent: 5104366 (1992-04-01), Bunch
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