Printing – Rolling contact machines – Bed-and-cylinder
Patent
1976-01-26
1978-03-14
Coven, Edward M.
Printing
Rolling contact machines
Bed-and-cylinder
B41F 320
Patent
active
040784916
ABSTRACT:
A portable imprinter for transferring indicia from a printing plate to a document comprising a generally rectangular base adapted to support the document in printing disposition over the plate, a frame mounted on the base, a pair of longitudinally extended slots located on opposite sides of the base at its junction with the frame for insertion of the printing plate and the document, and an imprinting roller assembly comprising a generally rectangular reciprocable carriage movably mounted within said frame, a printing roller supported within a U-shaped bracket, said bracket pivotally retained within said carriage on the side thereof juxtaposed to said base, and a rectangular cover mounted on said carriage on the side thereof opposite said bracket, wherein said bracket is under spring bias, placing said roller in constant contact with said base. During the printing cycle, the bracket pivots into rigid abutment with the cover to provide printing tension to the roller. During the return cycle, the bracket is freely cradled by the carriage, and the roller passes harmlessly along the printed document, thereby avoiding over-printing or other damage thereto.
REFERENCES:
patent: 3260199 (1966-07-01), Huntley et al.
patent: 3572241 (1971-03-01), Waterman
patent: 3596596 (1971-08-01), Chillingworth
patent: 3704668 (1972-12-01), St. Onge et al.
patent: 3705548 (1972-12-01), Waterman
patent: 3763777 (1973-10-01), Brown
patent: 3814015 (1974-06-01), Ozaki et al.
patent: 3830155 (1974-08-01), Pinedo
patent: 3838641 (1974-10-01), McInnis
Coven Edward M.
Jackson David A.
Silverman Mel K.
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