System for printing both sides of envelopes

Printing – Bed-and-platen machines – Perfecting

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Details

101 27, 101242, 271245, B41F 112, B41F 120

Patent

active

048381624

ABSTRACT:
A system of printing information on opposite sides of paper board envelopes using heat sensitive films or foils fed between transfer die members and envelopes passing therebetween. The system includes a supply magazine or the like, a conveying system for conveying the envelopes from the supply source to and through the several printers. The printers are longitudinally spaced along the conveyor path and are so located such that information can be printed on both sides of the envelope. At the end or the last printing station a second conveyor or transfer device is provided to transfer the just printed envelopes to a work station wherein delicate articles, such as hosiery, panty hose, etc., are placed therein. The system includes common and well known automatic control means to intermittently feed the envelopes to the several printing stations and subsequently to the envelope filling station.

REFERENCES:
patent: 1369934 (1921-03-01), Onstad
patent: 2205216 (1940-06-01), Loughery
patent: 2250677 (1941-07-01), Paulsen
patent: 2547602 (1951-04-01), Schmitt
patent: 2758538 (1956-08-01), Crink et al.
patent: 2851944 (1958-09-01), Prohaska
patent: 2925773 (1960-02-01), Kingsley
patent: 3180253 (1965-04-01), Hildmann
patent: 3435760 (1969-04-01), Harrison
patent: 3732807 (1973-05-01), Robertson
patent: 3812779 (1974-05-01), Cobb
patent: 3911813 (1975-10-01), Schaeffer
patent: 4470349 (1984-09-01), Godlewski
patent: 4527475 (1985-07-01), Davison

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