Printing – Antismut device – Sheet
Patent
1981-03-11
1983-09-06
Burr, Edgar S.
Printing
Antismut device
Sheet
101422, 101426, 118DIG15, B41F 2100
Patent
active
044022670
ABSTRACT:
A skeleton wheel or cylinder for supporting freshly printed sheet material between printing stations or at the delivery station of a printing press is provided with a loosely retained ink repellent fabric covering for supporting and conveying the sheet material without transfer of wet ink from one sheet to a successive sheet and without smearing the ink or indenting the surface of the sheet material. The circumferential surface of the skeleton cylinder is provided with a coating of a fluorocarbon plastic having a fabric base portion bonded to the surface of the cylinder structure. The low friction properties of the coating permit ease of shuffling movement of the fabric covering and the coating structure provides a cushioning effect to prevent smearing or indenting the sheet material by the fabric cover. The improved cylinder is provided with a plurality of retaining plates slidably fitted in axially spaced hub portions of the cylinder which plates are each locked in place by a set screw. The rim portion of the cylinder includes opposed parallel flanges on which the opposite ends of the fabric covering may be removably retained.
REFERENCES:
patent: 1231141 (1917-06-01), Ellis
patent: 1231142 (1917-06-01), Ellis
patent: 1933161 (1933-10-01), Claybourn et al.
patent: 2878742 (1959-03-01), Trump
patent: 3750571 (1973-08-01), Germann
patent: 3791644 (1974-02-01), DeMoore
patent: 3892179 (1975-07-01), Jahn
patent: 3910186 (1975-10-01), D'Amato et al.
Seitzinger, R. C., "Coatings That Cut Friction", Machine Design, Oct. 21, 1976.
Burr Edgar S.
Cohen Moshe I.
Printing Research Corporation
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