Abstract: A flat-bottom bag is provided having a folded bottom. Improved adhesive patterns are provided on the bag prior to folding. A first adhesive is provided in a plurality of parallel lines interiorly disposed in a bottom end of the bag. The lines are arranged on front and rear walls parallel to the side walls so that one outer line is positioned on each side of the front and rear walls with corresponding inner lines positioned so that when the sides are folded inwardly, each outer line intersects and contacts one respective inner line in an overlapping manner. This arrangement provides a securing of all interior edges of the folded bottom. A second adhesive can be applied to the exterior of the bag to bond front and rear flap extensions to each other and to the folded sides, forming the flat bottom. In an embodiment, an outer bottom flap is formed by slits in the front flap extension.

Abstract: A device and method for positively controlling and rotating an item through a predetermined angle in a plane as said item is moved longitudinally in the plane. Different lateral portions of the item are moved at different speeds in the longitudinal direction to effect the rotation. Preferably a pair of cone shaped segmented rollers are utilized which have a nip formed between high sections of the rollers, coplanar with the plane of rotation. Alternatively a pair of spaced segmented rollers having different linear surface speeds can be used to move the spaced lateral portions of the item at the different linear speeds. Positive control of the item is provided by opposed rotating members such as opposed belt conveyors or opposed sets of rollers and a mechanism is provided to selectively engage or release the opposed rotating members as required by the rotation of the item.

Abstract: A device and method for positively controlling and rotating an item through a predetermined angle in a plane as said item is moved longitudinally in the plane. Different lateral portions of the item are moved at different speeds in the longitudinal direction to effect the rotation. Preferably a pair of cone shaped rollers are utilized which have a nip formed therebetween, coplanar with the plane of rotation. Alternatively a pair of spaced rollers having different linear surface speeds can be used to move the spaced lateral portions of the item at the different linear speeds. Positive control of the item is provided by opposed rotating members such as opposed belt conveyors or opposed sets of rollers and a mechanism is provided to selectively engage or release the opposed rotating members as required by the rotation of the item.

Abstract: A continuous vertical conveyor having a horizontal infeed and a vertically displaced horizontal outfeed and a horizontal platform continuously moving between the infeed and outfeed while supported on staggered transport chains so as to remain horizontal even while making a transition between horizontal and vertical directions of travel. The horizontal platform has an upwardly extending arm and a downwardly extending arm to which the chains are pivotally attached so as to provide stability to the platform. The platform is configured with relieved areas between fingers so that it will interleave with infeed and outfeed conveyors and horizontal supports at the infeed and outfeed stations as it passes through the stations.

Abstract: An applicator for applying patches to a traveling web, such as in a bag forming machine, includes a vacuum cylinder with an outer perforated sleeve, an inner slotted sleeve and a stationary core with shaped pressure chambers for applying patches cut from a roll to the traveling web. Cutting blades are included in the perforate outer sleeve to sever patch material from a roll as the vacuum cylinder rotates. The outer perforate sleeve is replaceable with sleeves of different outside diameters to accommodate different patch locations.

Abstract: Apparatus for automatically forming hands or stacks of generally flat material such as bags or sacks of a desired count in synchronization with a high production bag manufacturing machine. The apparatus comprises an infeed counting conveyor which automatically accepts the continuous output of the bag machine and collects the bags in discrete stacks of a given quantity which are arranged for assembly into bundles of a uniform thickness to accommodate wrapping or banding.

Abstract: Apparatus for automatically assembling hands or stacks of generally flat material such as bags or the like into vertically aligned bundles for wrapping or banding in which the stacks to be assembled are conveyed into an accumulating area and are individually elevated by a lifting mechanism into a gathering frame for forming into bundles or bales of desired height.

Abstract: Apparatus for collecting, counting, stacking, turning over and arranging bags or sacks produced in a high production bag manufacturing machine for assembling and wrapping in desired bundles of uniform dimension for shipment or storage. The apparatus is synchronized with the bag machine to automatically accept the output therefrom for collecting in discrete stacks of a given quantity which are then overturned and fed by a conveyor into a wrapping apparatus with the bottoms of the bags of adjacent stacks positioned at opposite ends for assembling and wrapping in bundles of a uniform thickness to accommodate storage and shipment of the wrapped bundles.

Abstract: A method and apparatus for forming reinforced top file folders wherein a paperboard web is first sent through a cutting and scoring station where the web is severed transversely and the various score lines are formed therein, including one which is a relatively short distance behind the leading edge of the portion thus severed. In a subsequent station, an adhesive is applied in the form of a stripe immediately behind the score line. A hold down means is provided beyond the stage of adhesive application and is positioned such as to be received against the score line. A turnover means is positioned beyond the hold down means for folding the tab portion upwardly while the score line is received against the hold down means. A substantially right angle bend is thereby achieved between the forward marginal or tab portion and the score line with the adhesive behind it.