Contact-free sheet guidance device in a sheet-fed printing press

Details Contact-free sheet guidance device in a sheet-fed printing press Contact-free sheet guidance device in a sheet-fed printing press

1997-09-03

1998-11-17

Burr, Edgar S.

Printing

Antismut device

Contact preventers

1014161, 271194, 271195, B41F 128

Patent

active

058362479

ABSTRACT:
A contact-free sheet guidance device in a sheet-fed printing press, having a sheet guiding surface, includes at least one blast air nozzle formed in the sheet guiding surface and having a cross section directed obliquely downwardly with respect to the sheet guiding surface, the sheet guiding surface being formed with an opening for an air outlet directed substantially vertically at a sheet being fed in the sheet travel direction, the air outlet opening being disposed upstream of the blast air nozzle in the sheet travel direction and being smaller in cross section than the cross section of the blast air nozzle.

REFERENCES:
patent: 3231165 (1966-01-01), Wallin et al.
patent: 3633281 (1972-01-01), Vits
patent: 5102118 (1992-04-01), Vits
patent: 5156090 (1992-10-01), Wirz
patent: 5398925 (1995-03-01), Zeltner
Schell, Pneumatic (Angled jets) Bottom Feeder, Xerox Disclosure Journal, vol. 6 No. 5, p. 235, Sep., Oct. 1981.

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