Asterisk, Inc.

General Binding Corporation

Daniel J Williams

Frank A Todaro

Brian C Richardson

Peter Hotkowski

Peter C Burton

Apparatus for reducing peak tensions and tearing in perforated sheet ( ) being drawn along a flow path from a stack (S) into a finishing machine (F) is comprised of a drag unit ( ), for retarding motion of the sheet; an assist unit ( ) for urging the sheet along the flow path; and, a dancer unit ( ) for changing the length of the flow path. The assist unit comprises a pair of constant speed rollers ( ) supported by mounting blocks ( ). The orientation of the assist unit is changed by rotating the mounting blocks. The roller ( ) of the dancer unit is spring biased against the sheet.

Web stabilizer

A splicer for joining with tape the abutted ends of two sheets, such as the headers and footers of stacks of fanfold paper to be printed upon, is comprised of a clamp assembly and a tape dispenser. The clamp assembly captures the ends of the sheets between the resilient surfaces of a base and a movable top comprised of two spaced apart bars. Pins in the base help align perforated paper for joining. The dispenser runs along the slot between the two bars. It dispenses, presses down, and cuts the tape as it is laid along the butt-line between the ends of the sheets. An optional reversing bar causes the two sheets to travel along different shape paths to the splicer, thus enabling application of tape to the opposing sides of the sheets.

Splicer for joining thin sheets

Apparatus for feeding stacks of fanfold sheets is comprised of a belt conveyor, a positioner, and a splicer. The conveyor feeds stacks deposited thereon by the positioner toward the discharge end. The postioner is comprised of a U-shape bin which receives fanfold stacks and then turns them over and deposits them at a desired position along the length of the conveyor belt. In one embodiment, the stacks are lifted from the floor level. In another, the positioner translates along the base of the conveyor and includes a mechanism which automatically locks the positioner in place during loading. A splicer is positioned over the belt. Header and footer ends of adjacent stacks are run to the splicer where they are precisely clamped and then adhesively joined together, on the top side or underside, as desired. The conveyor has a sensor and drive system which automatically advances stacks toward the discharge end and signals the operator when there is a need to reload. The conveyor belt is powered by a timing belt drive system where the timing belt runs around the conveyor belt roller, to both frictionally engage the conveyor belt and cause it to crown up.

Fanfold sheet feeder having stack positioner

The present invention provides new offsetting paper stacking devices and methods which automatically stack sheets of paper into groups which are offset from each other. The offsetting paper stacker stacks sheets of paper that are feed into an input end of the device one at a time at a high rate of speed. The paper is stacked in one pile, however, within that pile there are groups of sheets that are stacked at a sideways offset to the group immediately above and below. Accordingly, every other group of sheets of paper will be in line with each other and each adjacent group will be offset from each other. The offsetting paper stacker includes stacker wheels which are rotatable about two axes of rotation to stack the paper in an offset manner.

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Newtown, CT, United States of America

Daniel J Williams