Abstract: A web of material is drawn into a printing press. A part of the tip of the web, which is laterally projecting over the edge of the web, is separated lengthwise at least once by the use of a slitting device. A device for accomplishing the drawing in of the web is also disclosed.

Abstract: At least one paper web is drawn into a web-fed rotary printing press. A draw-in device is provided with permanently fixed pointed bars or spikes. These can be moved or oriented so that they penetrate the paper web only during drawing in of the web into the printing press.

Abstract: A printed, endless web is transversely cut by the cooperation of a cutting blade cylinder and a sheet gripping cylinder that also carries cutting blocks. If the web that is to be cut, is noted as having a defect, for example in the printing applied to it, the cutting blades can be withdrawn into the cutting blade cylinder and the deflective web can be diverted away from the folding apparatus.

Abstract: Paper webs are wound up or supplied to units of a rotary printing press, such as a longitudinal fold former. Flexible endless or open ended traction devices are used. Paper webs are secured to the traction devices in a positive manner. The paper webs or their starting ends can be secured together only for purposes of being fed through the longitudinal fold former.

Abstract: Signatures are extracted from a folding apparatus of a web-fed rotary printing press. These signatures are extracted by an optionally switchable shunt that is arranged adjacent a cylinder of the folding apparatus. The folding apparatus is connected to a comminuting device.

Abstract: The invention relates to a method for drawing in a material web (33, 34, 36, 37) according to which the part (59) of the tip (41) laterally projecting over the lateral edge (42) of the material web is separated lengthwise at least once by means of a slitting device (21). The invention also relates to a corresponding device for carrying out the method.

Abstract: A longitudinal folding device for paper webs includes at least two hopper flanks. A paper deflection device encompasses the hopper flanks in a shell-like manner. The paper deflection device is supported by a machine frame and is electrically insulated from the machine frame. The paper deflection device may be connected to one or more vibrators or beaters.

Abstract: A roller and a device for guiding paper w bs to a unit of a rotary printing press includes paper web traction devices. These traction devices may be endless or of finite length. The roller that cooperates with these traction devices includes a passage that receives the traction devices. The axial width of the passage is adjustable.

Abstract: A longitudinal folding device includes formers for longitudinally forming and folding paper webs having different widths. Each former, together with its folding rollers, hopper roller and longitudinal cutting device is supported in a frame such that the former can be displaced in the axial directions of both the folding rollers and the hopper roller.

Abstract: A roller and a device for guiding paper webs to a unit of a rotary printing press includes paper web traction devices. These traction devices may be endless or of finite length. The roller that cooperates with these traction devices includes a passage that receives the traction devices. The axial width of the passage is adjustable.

Abstract: Paper web sections which may have been produced by longitudinally cutting a wide paper web, and which are being fed in a production direction, are laterally shifted with respect to that production direction. The web sections are fed within a device for deflecting the paper webs transversely from the left and from the right, with respect to the machine production direction. Two upper 45° deflection devices are supported by lateral side frames and can be displaced horizontally transversely to the machine production direction. Each of these two upper deflection devices has a lower surface that lies in a horizontal plane and the two horizontal planes have different heights.

Abstract: A roller or a cylinder of a rotary printing press is cleaned using a liquid. A carriage is movable back and forth along the roller or cylinder. A supply container carries a clean liquid in a specified amount. A dirty liquid is returned to a receptacle. The clean and dirty liquids are supplied to, and removed from, the carriage when it is in a parked position.

Abstract: The invention relates to a device for the transverse cutting of a web, whereby the cutting blades can be optionally withdrawn to allow, for example, a spoil-generating web to be diverted from a folding apparatus without problems.

Abstract: The invention relates to a device for the extraction of signatures (19), or similar, from a folding apparatus (2), whereby the paper is extracted by means of an optionally switchable guide (39) arranged on a cylinder. Furthermore, the folding apparatus (2) is connected to a comminuting device (56).

Abstract: A device for cleaning a roller in a rotary printing press uses a plurality of rotating brushes. Spray nozzles are arranged centrally in each of these rotating brushes. The brushes are supported on a carriage that can be moved along the length of the roller which is to be cleaned.

Abstract: A former is used to fold webs longitudinally. During the web drawing-in process, the individually incoming paper webs in a group of paper webs are conveyed smoothly to a folding mechanism at the end of the former. This is accomplished by using a number of upper and lower transport elements which are located above and next to each other at least inside the boundaries of the upper surface of the former. These upper and lower transport elements can be brought together and can be separated. They can be driven as desired.

Abstract: The invention relates to a device for deflecting paper web sections that are produced by longitudinally cutting a wide paper web or that are fed in the machine direction of production. These paper web sections are fed within said device transversely to the machine direction, namely transversely from the left and transversely from the right with respect to the machine direction. Two upper 45° (13, 14) deflection devices are provided between devices mounted between lateral stands (06, 07) and can be displaced manually or by means of a motor in the horizontal direction, either individually or jointly along the transverse machine directions, the lowest surface lines of said deflection devices lying in horizontal planes that have different heights.

Abstract: A former is used to fold webs longitudinally. During the web drawing-in process; the individually incoming paper webs in a group of paper webs are conveyed smoothly to a folding mechanism at the end of the former. This is accomplished by using a number of upper and lower transport elements which are located above and next to each other at least inside the boundaries of the upper surface of the former. These upper and lower transport elements can be brought together and can be separated. They can be driven as desired.

Abstract: A paper web is drawn into a printing and can be guided along a selected one of several paths. The paper web is weakened along a line of separation and is then held by a retaining system that can move the web in a conveying direction along a first path. The web is fed to a different conveying path and is separated ot torn along the line of separation. This line of separation or weakening is formed at an angle to the production direction.

Abstract: A turning bar arrangement for paper webs in a web-fed printing machine provides a compact and space-saving construction. A pair of turning bars are connected to each other while forming an acute angle and are mounted so that they can be displaced in a first plane of the turning device. A second similar arrangement of turning bars is provided in a second plane of the turning device.