Web plow folding

Details Web plow folding Web plow folding

1989-12-06

1991-04-16

Schmidt, Frederick R.

Manufacturing container or tube from paper; or other manufacturi

Bending

Folding

493439, 493442, 493454, B65H 4516

Patent

active

050078909

ABSTRACT:
A folder plow for a web of material in which the plow is positionable transversely of the longitudinal movement of the web material and has a folding disk rotatable on an axis convergent with the web and being adjustable by tilting about its axis of rotation to position its folding edge at different angles to the plane of the web to obtain a wrinkle free fold without gussetting and to prevent marking. The plow has a cylindrical section rotatable about an axis parallel with the plane of the web, which section is partially telescoped over the disk and provides a shroud for a major section of the disk, the disk having a small sector projecting radially from the contiguous portion of the cylindrical section. The plow is adjustable circumferentially about the axis of rotation of the cylindrical section for advancing or retracting the point of engagement of the disk which has a circumferential frusto-conical edge which merges with an outer face of the disk and forms an apex which engages the web at a series of points.

REFERENCES:
patent: 3147009 (1964-09-01), Gram
patent: 4410390 (1983-10-01), Farrell
patent: 4419087 (1983-12-01), Herrington
patent: 4421501 (1983-12-01), Scheffer
patent: 4641575 (1987-02-01), Cavagna

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