Method and apparatus for half folding paper sheets

Details Method and apparatus for half folding paper sheets Method and apparatus for half folding paper sheets

1989-02-08

1990-02-06

Schmidt, Frederick R.

Manufacturing container or tube from paper; or other manufacturi

Bending

Folding

493421, 270 45, 270 46, B65H 4514, B65H 4524

Patent

active

048985708

ABSTRACT:
Method and apparatus for half folding sequentially and nesting a plurality of paper sheets. The apparatus includes a buckle chute folder, the folder having a first pair of feed rollers rotatable at a given velocity, and a device for continuously feeding the paper sheets in shingled relationship at a second velocity greater than the given velocity to the feed rollers. The shingled relationship is defined by an overlap of the sheets of at least one-half of the length of the sheets. By using the apparatus and method, any desired number of sheets may be folded sequentially and nested one inside the other.

REFERENCES:
patent: 269186 (1882-12-01), Crowell
patent: 2023531 (1935-12-01), Kleinschmit et al.
patent: 2807463 (1957-09-01), Smith
patent: 3975009 (1976-08-01), Brown
patent: 4223882 (1980-09-01), Stocker
patent: 4295642 (1981-10-01), Kelly
patent: 4456242 (1984-06-01), Morin
patent: 4607831 (1986-08-01), Raybuck
patent: 4616815 (1986-10-01), Vijuk
patent: 4621966 (1986-11-01), Luperti et al.
patent: 4629175 (1986-12-01), Fischer et al.

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