Manufacturing container or tube from paper; or other manufacturi – Bending – Folding
Patent
1984-10-18
1987-03-17
Spruill, R. L.
Manufacturing container or tube from paper; or other manufacturi
Bending
Folding
493424, 493434, 493436, 493442, 493443, 493456, 493478, 493473, 493403, B31B 136
Patent
active
046504559
ABSTRACT:
In a packaging machine for use with a plurality of webs as a packaging material, each of the webs being formed with fold lines extending widthwise thereof and arranged longitudinally thereof at a spacing corresponding to the height of the finished containers to be eventually formed from the web, the plurality of webs being different in the spacing between the fold lines to form containers of capacities which are variable according to the height, a folding apparatus for forming folds in the web by folding the web along the fold lines, comprising a plurality of folding rollers corresponding to the plurality of webs, each of the folding rollers being movable to and retractable from an operative position in which the folding roller is rotatable by the corresponding web when the web is advanced as passed therearound, each of the folding rollers having edges extending axially thereof and coinciding with the fold lines of the corresponding web.
REFERENCES:
patent: 659246 (1900-10-01), Mayall
patent: 1823475 (1931-09-01), Scudds
patent: 3037432 (1962-06-01), Gibbon
patent: 3456565 (1969-07-01), Flaum et al.
patent: 3489043 (1970-01-01), Dent
patent: 4503739 (1985-03-01), Konieczka
Jones David B.
Shikoku Kakooki Co., Ltd.
Spruill R. L.
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