Numbering device for use in offset printing machine

Details Numbering device for use in offset printing machine Numbering device for use in offset printing machine

1982-06-28

1984-01-24

Coven, Edward M.

Printing

Selective or progressive

Numbering

101226, B41F 1356

Patent

active

044269293

ABSTRACT:
A numbering device for use in an offset printing machine includes a numbering-impression cylinder which is swingably disposed beside a transfer drum in order to perform a numbering operation simultaneous with an ordinary printing operation and to concurrently perform vertical and/or lateral perforation operations. The offset printing machine comprises a transfer drum positioned beside a main impression cylinder which confronts a blanket cylinder to perform ordinary printing operation; a numbering-impression cylinder; a numbering box supporting cylinder positioned beside the numbering impression cylinder so as to form numbers on a printed sheet, an ink supply in contact with the numbering box supporting cylinder; a perforating device positioned in confrontation with the numbering impression cylinder to provide vertical or longitudinal perforations in the printed sheet; and a synchronous mechanism connected between the cylinders in order to cooperate with a numbering box advancing device. Further, a lateral perforation cylinder can be provided in confrontation with the numbering impression cylinder in order to form lateral perforations in the printed sheet.

REFERENCES:
patent: 3276347 (1965-11-01), Bondley
patent: 3983578 (1978-09-01), Price
patent: 4000691 (1977-01-01), Fischer
patent: 4068582 (1978-01-01), Poitons et al.
patent: 4202268 (1980-05-01), Becker
"In Line Numbering, Perforating and Slitting", Lithoprinter, Dec. 1974.

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