Sheet-conveying drum body for a printing machine

Details Sheet-conveying drum body for a printing machine Sheet-conveying drum body for a printing machine

1995-09-01

1997-09-23

Yan, Ren

Printing

Work supporting members

Grippers

101246, B41F 130

Patent

active

056693052

ABSTRACT:
A sheet-conveying drum for a printing machine with speed apart bearings, the drum including a drum body with a prismatic shape including end faces and side faces, drum journals secured to the end face for journalling the drum for rotation in the bearings, at least two gripper bridges extending between the end faces and disposed symmetrically about the periphery of the drum body, the side faces including communicating openings extending into and through the drum body for allowing the flow of air therethrough as the drum rotates.

REFERENCES:
patent: 2933039 (1960-04-01), Claybourn et al.
patent: 3642274 (1972-02-01), Herrington et al.
patent: 3780925 (1973-12-01), Teines
patent: 4815379 (1989-03-01), Becker et al.
patent: 5050500 (1991-09-01), Spiess

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