Abstract: For effective achievement of an increase in productivity, prolongation of the life cycle of a consumable part, a decrease in the running cost, a lighter burden on the operator's work, and a reduction in spending on plants and equipment, a sheet transport apparatus comprises: a folding cylinder (11) for transporting sheets one by one or as a stack of a plurality of the sheets; a jaw cylinder (12) or a reduction cylinder (13) for holding the sheets by alternate ones of holding means and transporting the sheets when the sheets are transported as the stack of the plurality of sheets; an upper transfer cylinder (14) opposing the jaw cylinder or the reduction cylinder; a lower transfer cylinder (15) opposing the jaw cylinder or the reduction cylinder; and switching means for transporting the sheets from the jaw cylinder or the reduction cylinder to the upper transfer cylinder and the lower transfer cylinder, while allocating the sheets to the upper transfer cylinder and the lower transfer cylinder, when the sheets

Abstract: A sheet bundle stored in a sheet storage portion is pushed from a predetermined folded position with a first pushing plate, and the sheet bundle is normally conveyed along with the first pushing plate and plunged into a nip between first folding rollers to make a fold. The first folding rollers are reversely rotated while the first pushing plate is retreated, and the sheet bundle with the fold is reversely conveyed and returned to the sheet storage portion. Then, a second pushing plate pushes the sheet bundle, conveyed through a U-shape conveyance path, from a backside of the fold to reversely fold the sheet bundle, and the sheet bundle is completely folded. Therefore, the sheet bundle having good appearance can be realized in good bundle folding processing.

Abstract: A conveying unit that is useable for the conveyance of generally flat objects, particularly in a folder of a rotary printing press, includes endless first and second belts and a roller. A conveying path for the flat objects extends initially between the two belts and then subsequently between the second belt and the surface of the roller. The second belt is driven by a drive device at a speed which can be regulated independently of the rotational speed of the roller.

Abstract: The folding cylinder assembly has: rotatable folding cylinder having three pin lever shaft assemblies spaced substantially equally about the folding cylinder, each of the pin lever shaft assemblies having at least one pin and a cam follower positioned on a first end of the folding cylinder; one piece cam for interfacing with the cam followers, the one piece cam rotationally mounted on the first end of the folding cylinder, the one piece cam having two lobes which periodically contact the cam followers as the cam rotates; mechanism for rotating the folding cylinder and the cam such that the cam and the folding cylinder have a first relative angular velocity for the first mode of operation and second relative velocity for the second mode of operation, wherein in the first mode of operation the folding cylinder rotates at a substantially constant angular velocity and the cam rotates at one and one-half times the substantially constant angular velocity in the same direction of rotation as the folding cylinder, an

Abstract: To provide a compact, readily adjustable system which provides two longitudinal folds on a printed web, a combination transfer and collection cylinder has product retention means (11, 35) thereon, such as grippers (11) or puncture needles (35); selectively operable lift-off fingers (14, 14') remove the printed products from the cylinder (10) and feed them, superimposed, between belts (7, 17), the belts being guided by drive and guide rollers (18, 19, 20, 21). A pair of drive and guide rollers is constructed to form a perforating blade-perforating groove roller combination (22, 23) to provide perforations in a plurality of superposed first folded products for subsequent delivery to a second folding apparatus (29, 30).

Abstract: A continuous web of paper which may be longitudinally folded in half is drawn around a rotating cylinder which cuts the web into pre-determined suitable lengths. Vacuum and air pressure means temporarily hold the severed portions of the web against the cylinder, but at an appropriate moment release the leading edge of the severed portion causing it to be lifted in its leading half away from the cylinder, the trailing half being retained by suction against the cylinder. The lifted leading edge folds backward against the trailing portion along a fold line, and subsequently the folded-together leading and trailing portions are released from the cylinder, transported away from the cylinder and into a stacking tray, for subsequent packaging. The cut and folded sections of the web are, at all times, held under control by a vacuum in one or more cylinders or conveyor belts until the very last moment when they are discharged into a receiving and stacking tray.

Abstract: To permit compact construction, a combination cylinder (3) having thereon cutting grooves for cooperation with cutting knives (5) of a cutting blade cylinder (4), grippers (7) and folding blades (8) receives a web or a plurality of superposed webs (2), to be cut into cut copy products or elements (17). The elements (17) are transferred to a collection cylinder (10), to be gripped by grippers (11) thereon and transferred to grippers (13) on a stapling head cylinder (12). The stapling head cylinder, if the stapling heads are energized, staples the webs together, and transfers them to grippers (7) on the combination cylinder which, in turn, folds the stapled sheets by operation of the folding blades thereon in association with folding jaws of a folding jaw cylinder (15) located adjacent the combination cylinder. The stapling head cylinder and the folding jaw cylinders are located, at least in part, laterally of the combination cylinder, so that the apparatus does not require substantial height.

Abstract: To permit high-speed operation of a longitudinal folding apparatus in which a folding blade engages between two folding rollers (11), the folding blade and the folding rollers of the folding apparatus (7) are made sufficiently long to accomodate a plurality of essentially immediately adjacently positioned printed products. The printed products are supplied by a transport system (1, 20) with spacing by about the length of a product therebetween, and, in accordance with the invention, are repositioned immediately adjacent each other, with gaps between immediately adjacent products longer than the spacing between products as supplied.

Abstract: A sheet transfer apparatus which can vary the effective spacing between the cutting cylinder and the transfer cylinder and between the transfer cylinder and the folding blade cylinder in a folding cylinder group for a rotary web-fed printing press is disclosed. The cutting knives and complementary counter cut bars of the cutting and transfer cylinders, respectively, are radially adjustable on the cylinders to insure that the webs of paper are accurately cut into sheets and transferred to the pins of the folding blade cylinder. The spacings can be adjusted to allow the folding cylinder group to operate in straight, single collect, and double collect productions.