Manufacturing container or tube from paper; or other manufacturi – Bending – Folding
Patent
1980-09-17
1983-03-29
Heinz, A. J.
Manufacturing container or tube from paper; or other manufacturi
Bending
Folding
493446, B65H 4522
Patent
active
043782230
ABSTRACT:
For use in combination with a machine for feeding a web of paper in a downstream path of travel, there is provided apparatus for folding an unfolded web of paper along its longitudinally-extending weakened fold line. The apparatus comprises a frame; a drag member attached to the frame so as to extend in frictional engagement with the unfolded web; a pair of parallel spaced rollers which are attached to the frame below the level of the drag member so as to extend at right angles to the drag member, such that an unfolded web may extend downwardly in its path of travel from said drag member to said upper roller and be folded between them and such that the folded web may threadably extend between the upper and lower rollers; and an output roller attached to the frame so as to extend parallel to said upper and lower rollers, such that the folded web may extend in its path of travel from beneath the lower roller to the output roller and then from beneath the output roller to the machine. In addition, there is provided an upright guide plate, which extends between the lower roller and output roller and at right angles to the same, and articulable structure which carries a wheel for disposition in rolling engagement with the fold line of a web between the drag member and said upper roller. The wheel is thus selectively positionable with respect to a web for urging the fold edge of a folded web into engagement with the guide plate as the machine feeds a web in its downstream path of travel.
REFERENCES:
patent: 2619057 (1952-11-01), Ellis
patent: 2879061 (1959-03-01), Alden
patent: 3147009 (1964-09-01), Gram
patent: 3356557 (1967-12-01), Enskat
patent: 4097039 (1978-06-01), Fischer
Branecky George N.
Oeschger Frank A.
Roetter Frank T.
Heinz A. J.
Pitney Bowes Inc.
Scribner Albert W.
Soltow, Jr. William D.
Walker Donald P.
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