Apparatus for the continuous production of an article of manufac

Details Apparatus for the continuous production of an article of manufac Apparatus for the continuous production of an article of manufac

1994-05-20

1996-09-24

Lavinder, Jack W.

Manufacturing container or tube from paper; or other manufacturi

Container making

Rigid container

493178, 493180, 493183, B31B 154

Patent

active

055586120

ABSTRACT:
An article of manufacture, such as letter envelopes, paper bags, shipping uches, 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 (43) 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.

REFERENCES:
patent: 543571 (1895-07-01), Crist
patent: 971780 (1910-10-01), Parrish
patent: 2012357 (1935-08-01), Shea
patent: 2153848 (1939-04-01), Shea et al.
patent: 2159853 (1939-05-01), Johnson
patent: 2570047 (1951-10-01), Burroughs
patent: 4582552 (1986-04-01), Fitzgibbon

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