Printing press with variable speed transfer cylinder

Details Printing press with variable speed transfer cylinder Printing press with variable speed transfer cylinder

1976-02-18

1977-07-05

Eickholt, E. H.

Printing

Rolling contact machines

Rotary

271114, 271236, 226178, B41F 1324

Patent

active

RE0292893

ABSTRACT:
A rotary cylinder printing press in which the disadvantages incurred by having to stop each sheet to set it in registration with the printing cylinder are overcome by carrying the longitudinal register on a transfer cylinder so that the sheets can be set in exact register with the printing cylinder without stopping. The transfer cylinder is rotated continuously in the same direction and its speed is varied cyclically as each sheet is set in register and then transferred to the printing cylinder. The transfer cylinder is also provided with a safety system which detects misalignment of sheets or damaged sheets to prevent the transfer cylinder from conveying such sheets to the printing cylinder.

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patent: 3245683 (1966-04-01), Wordquist
patent: 3604703 (1971-09-01), Nash
patent: 3623720 (1971-11-01), Vite
patent: 3652082 (1972-03-01), Eder

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