Printing – Inkers – Roller
Patent
1979-04-19
1980-09-23
Granger, Theodore A.
Printing
Inkers
Roller
101DIG12, G09B 1924
Patent
active
042234530
ABSTRACT:
A training aid of the simulator type for use in teaching the techniques of adjusting the cylinders of a multi-color rotary web printing press to achieve acceptable registration between the successive impressions forming a printed color page. Four superimposed positive colored film transparencies mounted on a light box provide facsimiles of the red, yellow, blue and black images successively printed on a web; and all but the black transparency are carried separately on adjustable frames which are movable to effectively simulate the endwise (button-to-gear), the circumferential and the cocking adjustments of the plate cylinders of a rotary press. Endwise and circumferential simulating movements are by electric motors each of which is controlled for forward and reverse drive by a manual switch that is identical with the switch on a press cylinder adjustment control panel, and the manual cocking control precisely simulates that for a press cylinder. A "timer" which operates during a registration training run shows both elapsed time to achieve registration and the number of imperfect impressions produced in that time by a press operating at 500 feet per minute.
REFERENCES:
patent: 2921378 (1960-01-01), Mueller
patent: 2961770 (1960-11-01), Imshaug
patent: 3264106 (1966-08-01), Allan
patent: 3613252 (1969-02-01), Moon
patent: 3841217 (1974-10-01), Hodges
patent: 3969826 (1976-07-01), Ottenhue
patent: 4018528 (1977-04-01), Dennis
Granger Theodore A.
R. R. Donnelley & Sons Company
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