Printing – Multicolor – Rotary machines
Patent
1986-12-01
1988-03-22
Pearson, Charles A.
Printing
Multicolor
Rotary machines
101183, 101230, B41F 516
Patent
active
047320842
ABSTRACT:
A sheet-fed rotary printing machine for single-side multi-color printing or perfector printing having an in-line type of construction with at least one sheet-turning device as well as devices for processing both papers and cardboard, and respective printing units each having, in addition to a plate cylinder and a blanket cylinder of equal given diameter, an impression cylinder having a diameter at least double the given diameter and a sheet transfer drum includes a lower printing-unit part with parts of the turning device located between an adjacent pair of the printing units, the lower printing-unit part having a storage drum in place of an impression cylinder, the storage drum being formed with at least two sheet-carrying surfaces, and a sheet transfer drum with a diameter at least double the given diameter, the printing unit of the adjacent pair of printing units following the lower printing-unit part, in travel direction of a sheet through the printing machine, having a sheet transfer drum formed as a turning cylinder following the storage drum, the turning cylinder carrying at least two systems of pincer-type grippers.
REFERENCES:
patent: 3161130 (1964-12-01), Vogel
patent: 4018161 (1977-04-01), Johne et al.
patent: 4101122 (1978-07-01), Jeschke et al.
patent: 4188883 (1980-02-01), Schone et al.
patent: 4214526 (1980-07-01), Jeschke
patent: 4327135 (1982-04-01), Wirz et al.
patent: 4621576 (1986-11-01), Wirz
Greenberg Laurence A.
Heidelberger Druckmaschinen AG
Lerner Herbert L.
Pearson Charles A.
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