Printing – Selective or progressive – Rotary machines
Patent
1975-12-10
1976-12-07
Coven, Edward M.
Printing
Selective or progressive
Rotary machines
1011325, B41L 4746
Patent
active
039955460
ABSTRACT:
A rotary printing roller supports a printing form and a rotary counter-pressure roller is adjacent the printing roller. One of the rollers is movable to and from a printing position in close proximity to the other roller to define with the same a printing line. A plurality of cams are provided which are selectably shiftable into and out of connection with an arrangement which effects movement of the movable roller to and from the printing position. Depending upon which of the cams is associated with this arrangement, sections of different width of the printing form will pass through the printing line as the printing roller turns through an angle dependent upon the respective cam. The cams are moved to the position cooperating with the aforementioned arrangement by means of electromagnets which are selectively energizable, and are restored to their starting position by the arrangement which displaces them mechanically.
REFERENCES:
patent: 2868116 (1959-01-01), Ritzerfeld et al.
patent: 2868117 (1959-01-01), Ritzerfeld et al.
patent: 2967477 (1961-01-01), Ritzerfeld et al.
patent: 3155036 (1964-11-01), Ritzerfeld et al.
patent: 3238868 (1966-03-01), Ritzerfeld et al.
patent: 3489081 (1970-01-01), Ritzerfeld
Bear et al., IBM Technical Disclosure Bulletin, vol. 5, No. 11, Apr. 1963, pp. 27-29.
Coven Edward M.
Striker Michael J.
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