Folding apparatus with adjustable swing chute

Details Folding apparatus with adjustable swing chute Folding apparatus with adjustable swing chute

1987-07-28

1989-05-09

Schmidt, Frederick R.

Manufacturing container or tube from paper; or other manufacturi

Bending

Folding

493415, B65H 4520

Patent

active

048285404

ABSTRACT:
A spiral zig-zag folding apparatus for folding a length of paper having longitudinally spaced, transversely oriented perforations includes a swing chute assembly having an upper chute pivotally mounted to a lower chute which guide the paper between opposed spiral folders for folding along adjacent perforations. The upper and lower chutes are driven by a single drive arm carried at one side of the apparatus frame by an eccentric cam which is adjustable to vary the stroke of the drive arm, and, in turn, the movement of the chutes. Each chute includes a pair of spaced blades formed with a foam core overwrapped with one or more layers of composite material.

REFERENCES:
patent: 2098427 (1937-11-01), Menschner
patent: 3124350 (1964-03-01), Huffman
patent: 3499643 (1970-03-01), Biggar, Jr.
patent: 3889940 (1975-06-01), Jakob
patent: 3912252 (1975-10-01), Stephens
patent: 4045012 (1977-08-01), Jakob
patent: 4151985 (1979-05-01), Gladow
patent: 4277058 (1981-07-01), Biggar, III
patent: 4332581 (1982-06-01), Thompson
patent: 4401428 (1983-08-01), Thomas et al.
patent: 4512561 (1985-04-01), Ury

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