Moore Business Forms, Inc.

John A Sabatowski

Henk Haan

John Van De Ven

R Joseph Varieur

Stephen Michalovic

The folding, and accumulation in configurations simulating a booklet, of flexible sheets (such as paper sheets) is accomplished in a simple, straight-forward, yet effective manner. A movable bar is pivotally mounted at a first end adjacent a cutter from which it receives paper sheets. A plurality of first pulleys having a circumferential periphery with a concave substantially V-shape are mounted by the movable bar and cooperate with a second plurality of pulleys on a stationary V-shaped bar. The second pulleys have convex substantially V-shaped circumferential peripheries with a groove for receipt of a circular cross-section conveyor belt which extends between the sets of pulleys and drives sheets for folding between them. At the discharge end of the folder is a downwardly sloping convex substantially V-shaped accumulator bar which cooperates with a guide (having a concave V-shape) and an automatically movable stop. After a plurality of folded paper sheets in a configuration simulating a booklet are collected, the stop is released and they are transmitted to a binder.

Apparatus for accumulating sheets for a booklet

A sheet inverter is used in a method of handling documents, preferably to invert the documents, change them from an in-line configuration to a shingled configuration, and then move them in a direction substantially transverse to the original direction of conveyance of the documents. An inverter shaft is rotatable about a generally horizontal axis and has a plurality of sheet supporting elements, such as rods or bars (such as in an exaggerated generally S-shaped configuration) axially spaced from each other along the shaft, with each sheet supporting element comprising first, second and third portions defining first, second and third closed sides for receipt of a document, and an open fourth side by which the document may enter the elements. A support structure connects each of the sheet supporting elements (either together or individually) to the shaft for rotation with the shaft about its axis. The sheet supporting elements receive one or more documents at a first vertical level, which documents are sensed by a sensor. The supporting elements are then rotated with the shaft to deposit the documents (in association with stops) on a lower conveyor. The sheet supporting elements pass through openings between elements of the bottom conveyor and move back to the original position, which is sensed by another sensor, to await the next set of documents.

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Grand Island, NY, United States of America

John A Sabatowski