Rotary press with means for adjusting the positions of printing

Details Rotary press with means for adjusting the positions of printing Rotary press with means for adjusting the positions of printing

1978-04-27

1980-06-17

Pieprz, William

Printing

Rolling contact machines

Rotary

101216, 1014151, 101181, B41F 1316

Patent

active

042078156

ABSTRACT:
A multiple-color, offset rotary press is disclosed wherein each plate cylinder carries two printing plates, with one of them wrapped around a larger diameter portion of the plate cylinder and the other around a tube slidably fitted over a smaller diameter portion of the cylinder. A shaft secured to the tube and extending coaxially from one end of the plate cylinder, and an axle extending coaxially from the other cylinder end, are mounted on frame means for independent rotary and axial motion. A pair of driven helical gears are mounted respectively on the shaft and the axle for simultaneous rotation therewith but for axial motion relative to same and are meshed respectively with a pair of driving helical gears fixedly mounted on the opposite axles of a corresponding blanket cylinder. The positions of the printing plates are separately adjusted in the circumferential direction by causing axial motion of the driven helical gears, and in the axial direction by causing axial motion of the shaft and the axle.

REFERENCES:
patent: 664584 (1900-12-01), Roesen
patent: 1512994 (1924-10-01), Margnardt
patent: 1651295 (1927-11-01), Shuttleworth
patent: 2030027 (1936-02-01), Greenwood
patent: 2539068 (1951-01-01), Funk
patent: 3157116 (1964-11-01), Reiner
patent: 3641933 (1972-02-01), Jafel
patent: 3841216 (1974-10-01), Huffman
patent: 4006685 (1977-02-01), Mosemiller
patent: 4137845 (1979-02-01), Jeschke

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