B - Operations – Transporting – 31 – B
Patent
B - Operations, Transporting
31
B
B31B 29/02 (2006.01) B31B 29/00 (2006.01)
Patent
CA 2124064
TITLE OF THE INVENTION APPARATUS FOR THE CONTINUOUS PRODUCTION OF AN ARTICLE OF MANUFACTURE, SUCH AS ENVELOPES ABSTRACT OF THE DISCLOSURE An article of manufacture, such as letter envelopes, paper bags, shipping pouches, and the like is manufactured continuously on a production line that includes a back folding or so-called zig- zagging station which folds back one of the bottom flaps, first in a direction opposite to the continuing feed advance and then in the direction of the feed advance, whereby the formation of so-called bed bottoms or stand-up bottoms for these articles is facilitated. A cross strip of a front or back portion of the article and respective precreases are used as a folding arm and fold lines in the formation of the zig-zag fold.
Macrae & Co.
Winkler & Dunnebier Maschinenfabrik Und Eisengieserei Kg
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