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    • 5. 发明授权
    • Continuous forms envelope converter system
    • US3552282A
    • 1971-01-05
    • US3552282D
    • 1968-08-09
    • BALTIMORE BUSINESS FORMS INC
    • WILSON PAUL O
    • B31B23/00B31B1/00
    • B65H45/28B31B2150/00B31B2160/10B43M5/045B65D27/18B65H45/142B65H2701/1916
    • A continuous forms press converts a roll of envelope paper into a continuous envelope form having a plurality of transverse perforated lines dividing the form into envelope blanks, a plurality of transverse score lines defining fold lines on the envelope blanks, longitudinal perforated lines and score lines defining side trim zones and side flaps, lines of sprocket holes along the side margins of the form, and adhesive coatings on a seal flap and adjacent side margins of a top sheet of each blank. The press folds the continuous form into a zigzag folded stack suitable for feeding into a computer printout device or automatic typewriter where the forms are automatically addressed from addresses contained in a tape or punch card memory. The continuous form is again folded into a zigzag stack and fed into a continuous forms envelope converter which includes means for separating the continuous form into separate envelope blanks, means for trimming the side trim zones from the blanks, means for folding over the side flaps, means for folding over a top sheet of each blank over a bottom sheet thereof along a transverse fold line, and means for activating the adhesive coatings adjacent the side margins of the top sheet and securing the side flaps thereto for completing the envelopes.