TUB MANDREL
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Abstract
A PAPER TUB IS FORMED ON A ROTATING MANDREL BY WINDING TWO SECTIONS OF PAPER ONTO THE MANDREL, ONE OVER THE OTHER. THE SECTIONS OF PAPER ARE HELD TO THE MANDREL BY A VACUUM WHICH IS APPLIED TO THE PAPER SECTIONS THROUGH ORIFICES IN THE MANDREL. AFTER THE PAPER IS WRAPPED AROUND THE MANDREL AND GLUED TOGETHER, PRESSURED AIR IS SENT THROUGH SOME OF THE AIR LINES TO THE ORIFICES IN THE MANDREL. THE PRESSURE AIR FORCES THE TUB OFF THE MANDREL TO ANOTHER POSITION.
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