Four-bar interposer mechanism for offset printing

Details Four-bar interposer mechanism for offset printing Four-bar interposer mechanism for offset printing

1982-01-25

1983-11-08

Hayes, Monroe H.

Photocopying

Projection printing and copying cameras

Image transferred to or from curved surface

271243, G03B 2748, G03B 2750, B65H 904

Patent

active

044139020

ABSTRACT:
Non-impact offset printing apparatus providing repeatable top-to-bottom registration of printed matter transferred to cut sheet paper fed in the "portrait" direction by means of a timer-interposer mechanism which contacts the leading edge of each incoming sheet and times the entry of the sheet into the transfer point adjacent to the rim of the offset non-impact rotary printing apparatus effectively creating positive and accurate registration of all four margins of printed matter on each page.

REFERENCES:
patent: 1288710 (1918-12-01), Sheldon
patent: 2074720 (1937-03-01), Eckhard
patent: 2208048 (1940-07-01), Durup
patent: 2888262 (1959-05-01), Montgomery
patent: 3181418 (1965-05-01), Durlofsky
patent: 3434640 (1969-03-01), Coutant et al.
patent: 3615128 (1971-10-01), Bhagat
patent: 3914041 (1975-10-01), Opravil
patent: 3915447 (1975-10-01), Perno
patent: 4022525 (1977-05-01), Boudouris
patent: 4150886 (1979-04-01), Merkel et al.

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