Abstract:
A web is guided in a processing machine by the use of a device which includes a regular device and at least one further web guiding element. These cooperate to subject the web to an offset or to a change in direction. The regular device and the at least one further web guiding element are arranged for mounting on a common guide in a direction that is transverse to the direction of travel of one incoming web.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS  
       [0001]     This application is the U.S. National Phase, under 35 USC 371, of PCT/DE2003/002526 filed Jul. 26, 2003, published as WO 2004/014770 on Feb. 19, 2004 and claiming priority to DE 102 35 391.3 filed Aug. 2, 2002, the disclosures of which are expressly incorporated herein by reference. 
     
    
     FIELD OF THE INVENTION  
       [0002]     The present invention is directed to devices for guiding a web of partial width, a guide element for guiding a web of partial width, and a processing machine with these devices.  
       BACKGROUND OF THE INVENTION  
       [0003]     In production or processing machines, for example printing presses, the webs of material to be produced or to be processed are often longitudinally cut on their way through the machine, and the partial webs being created are thereafter conducted to further processing stages. For this purpose the partial webs are conducted over guide rollers of various types, some of which extend over the entire width of the machine. In order to prevent sagging, such long guide rollers must then be designed to be appropriately heavy and have a correspondingly great inertia. In contrast thereto, a partial web touches or loops around only a portion of the length and has a distinctly reduced cross section in comparison with the entire web. These two effects cause increased fluctuations of the partial web, in particular during start-up operations or, for example, during regulation- or production-based speed changes, and therefore in losses in quality of the product, or even a web break.  
         [0004]     WO 01/70608 A1 discloses a turning bar arrangement, wherein two turning bars of a substantially partial web width, are arranged, each on a support, transversely displaceable in respect to the direction of the incoming partial web. A registration roller is arranged respectively laterally outside the lateral frame, whose longitudinal axis extends substantially parallel with the lateral frame, and which is also transversely displaceable along a rail in respect to the direction of the incoming partial web.  
         [0005]     A guide element, embodied as a registration roller, is disclosed in DE 36 02 894 C2, which is embodied so that its position can be changed and thereby changes the web path.  
         [0006]     A frame in GB 1 546 798, having a plurality of turning bars and a plurality of registration rollers, can be moved as a whole laterally in respect to the incoming web. This entire frame can be replaced for taking various web divisions into account.  
         [0007]     In GB 594 035 a deflection roller for already folded strands is disclosed downstream of the formers, which has several individually rotatable roller sections over the width of the strand.  
       SUMMARY OF THE INVENTION  
       [0008]     The object of the present invention is directed to providing devices for guiding a web of partial width, a guide element for guiding a web of partial width, and a processing machine with these devices.  
         [0009]     In accordance with the present invention, this object is attained by preferably including a registration device and a guide element arranged movably transversely in respect to a direction of an incoming web on a common guide element. Additionally, the devices preferably include at least one roller having a width transversely in respect to the running direction of the incoming web which is less than a maximum full web to be processed in the processing machine.  
         [0010]     The advantages which can be obtained by the present invention lie, in particular, in that a web transport is also assured for partial webs by simple means at desired and preselectable speeds and web tensions. Inertia effects are reduced by the device, which would be caused in the course of conducting partial webs over non-driven guide elements extending over the entire possible web width, such as guide rollers. The above described effects on quality and safety are minimized.  
         [0011]     The arrangement of two guide elements on a common support makes possible, for one, the mutual movement of the two guide elements, without it being basically necessary in case of a production change to perform their realignment with each other. The arrangement of two guide elements at least on a common guide device saves structural space and makes short running paths of the partial webs possible.  
         [0012]     With some preferred embodiments it is furthermore possible to shorten the web path and to prevent a renewed tipping of the partial web in the course of a simple turning of the partial web.  
         [0013]     A considerably more cost-effective and easier to manipulate solution has been created in comparison with individually movable guide elements.  
         [0014]     The device has great advantages, particularly in connection with double-wide, and more particularly triple-wide printing presses, since continuous guide elements have a particularly large mass inertia because of their great width (and resultant large cross section). Also, in particular with the mentioned printing presses, it is possible to save structural space required for outward displaced registration rollers.  
         [0015]     In a preferred embodiment, the registration roller in the superstructure, whose axis of rotation is oriented vertically in respect to a plane of the lateral frame, or parallel with the cylinders of a printing press, and/or the harp roller assigned to the same partial web, are embodied to be of partial width.  
         [0016]     In a further preferred development, all non-driven guide elements assigned to the same and single partial web between longitudinal cutting devices and a first traction or former inlet roller assigned to the hopper are embodied to be of partial width or as divided rollers with several sections which can be independently rotated in the axial direction.  
         [0017]     In connection with double-wide printing presses, only one such device, in the case of triple-wide printing presses two of these devices are necessary per uncut full web.  
         [0018]     In comparison with a double-wide printing press and with the same target thickness of a product to be achieved, with a triple-wide embodiment of the printing units the production dependability of the printing press is further increased because of fewer units needed, and investment is further reduced. But while maintaining the number of printing units, the output of the printing press, or of each printing unit, can be increased by 50%. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0019]     Preferred embodiments of the present invention are represented in the drawings and will be described in greater detail in what follows.  
         [0020]     Shown are in:  
         [0021]      FIG. 1 , a web-fed rotary printing press in accordance with the present invention in a lateral view,  
         [0022]      FIG. 2 , a folding structure of a web-fed rotary printing press in accordance with the present invention,  
         [0023]      FIG. 3 , a first preferred embodiment of a superstructure in a perspective plan view in accordance with the present invention,  
         [0024]      FIG. 4 , a view from above in accordance with  FIG. 3 ,  
         [0025]      FIG. 5 , a variant of the first preferred embodiment in accordance with the present invention,  
         [0026]      FIG. 6 , a second preferred embodiment of a superstructure in a perspective plan view in accordance with the present invention,  
         [0027]      FIG. 7 , a lateral view in accordance with  FIG. 3 , and  
         [0028]      FIG. 8 , a third preferred embodiment of a superstructure in a perspective plan view in accordance with the present invention. 
     
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS  
       [0029]     The web-fed rotary printing press represented by way of example in  FIG. 1  has a left and a right section, each with at least two printing towers  01 . The printing towers  01  have printing units which are, for example, triple-wide, i.e. are designed for imprinting respectively six axially side-by-side arranged newspaper pages. The printing units are embodied as satellite printing units with at least two transfer cylinders assigned to a common satellite cylinder and respectively one forme cylinder working together with the transfer cylinder. The preferred embodiment of the printing units as nine cylinder satellite printing units assures a very good registration maintenance, or little fan-out. However, the printing units can also be embodied in other ways.  
         [0030]     Each of the transfer cylinders has a circumference corresponding to at least two vertical newspaper pages arranged one behind the other in the circumferential direction. In a preferred manner the forme cylinder can also have a circumference corresponding to at least two vertical newspaper pages arranged one behind the other in the circumferential direction.  
         [0031]     Two folding structures  02  are arranged between the sections, each of which has formers arranged, for example, on two different levels one above the other. However, the printing press can also have only one common folding structure  02  arranged between the sections, or only one section and an associated folding structure  02 . Also, the respective folding structure  02  can be designed with only one level of formers. One or several folding apparatus  03  are assigned to each folding structure  02 . The web is provided to the printing units from rolls in particular with the use of roll changers that are not herein specifically represented.  
         [0032]     One superstructure  04  per section is provided above the printing towers  01 , in which webs are cut by means of longitudinal cutting devices  06 . Partial webs, are offset and/or tipped, if required, by means of turning arrangements  07  and aligned with each other in the linear register by means of registration arrangements, which are not specifically represented in  FIG. 1 , and are further conducted on top of each other. Guide elements  08  are indicated in  FIG. 1 , on which non-represented supports, described below, for the lateral movement of turning bars  07  and, if required, a registration device, can be arranged. Viewed in the running direction of the web, in front of one of the formers arranged one on top of the other, the superstructure  04  has a roller group  09 , a so-called harp  09  with several guide elements embodied as harp rollers, which determine the entry of webs into the formers. For saving structural space, in the example only, one harp  09  is arranged for two formers arranged one on top of the other, from which webs can be conducted to the one and/or the other of the formers arranged on top of each other. In this preferred embodiment, it is only arranged in front of the upper former.  
         [0033]     In what follows, the group of rollers is understood to be harp rollers which represent the two last non-driven guide rollers upstream of the former inlet viewed in the running direction of the webs. As a rule, they are the last non-driven rollers assigned to only a single layer of material to be imprinted. As shown in  FIG. 2 , downstream of this it is possible for several webs, or partial webs, for example, to be brought together into a strand and to be conducted, for example, over the traction roller  13  and/or former inlet roller  14 .  
         [0034]     The folding structure  02  for the triple-wide printing press, represented in  FIG. 2 , has, for example, three side-by-side arranged lower formers  11 , and three upper formers  12 , arranged above them and side-by-side in respect to each other. In a preferred embodiment, traction rollers  13  and former inlet rollers  14  respectively placed upstream of the formers  11 ,  12  each have their own drive motors  16 , the same as the folding apparatus  03 , as well as traction rollers provided in the folding structure  02 .  FIG. 2  shows only partial fill-in of the respective traction rollers.  
         [0035]     The above mentioned folding structure  02  with only one harp  09  for two formers arranged on top of each other, as well as the elements of the superstructure  04  described in greater detail in what follows, are also suitable for other printing presses with different cylinder widths and cylinder circumferences. The folding structure  02  and the superstructure  04  have been represented by an example of a triple-wide printing press.  
         [0036]     In a perspective oblique view,  FIG. 3  shows a first preferred embodiment of at least a portion of the superstructure  04 . A full web  17 , for example, a web  17  of a width which, in case of a double-wide printing press, substantially corresponds to four, and in case of a triple-wide printing press to six, side-by-side arranged vertical newspaper pages, is conducted to a longitudinal cutting device  06 . The latter has, for example, a traction roller  18 , with which contact rollers can cooperate in order to prevent slippage. As shown in  FIG. 4 , cutters  21  can be placed against the surface area of the traction roller  18  in order to cut the web  17 , depending on the requirements, into webs  22 ,  23 ,  24  of partial width, in particular into partial webs  22 ,  23 ,  24 .  
         [0037]     Webs  22 ,  23 ,  24  of partial width can also be conducted to the superstructure  04  without longitudinal cuts, in that already a web  22 ,  23 ,  24  of partial width is conducted to the printing press, or a printing tower, or a printing unit. It than has a width, for example, which is clearly less than a width which can be maximally imprinted by the printing unit. For example, the width is at least ¼ less in connection with a double-wide press, or at least ⅙ lesswith a triple-wide press, than a width which can be maximally imprinted by the printing unit.] The following remarks provided below regarding guide elements of partial web width are also to be understood in this sense.  
         [0038]     For the purpose of improved representation, the partial webs  22 ,  23 ,  24  are shown in  FIG. 4  narrower and spaced apart from each other. By way of example, in  FIG. 4  the partial web  24  is represented as a partial web  24  running straight ahead, the partial web  23  as a partial web  23  turned from the center toward the outside, and the partial web  22  only incompletely. For example, the partial web  22  could be conducted straight ahead, like the partial web  24 , or turned into another direction by means of a second such turning arrangement  07 , the same as the partial web  23 . A second turning arrangement can be located above or below the plane defined by the partial web  23  entering into the first turning arrangement  07 .  
         [0039]     In contrast to the other partial webs  22 ,  24 , a partial web  23 , which was cut like the partial web  23  and subsequently offset, turned and/or tipped, is given an offset in the running direction of the partial web  23  and therefore its linear registration must be corrected by means of a registration device  26 . Since this offset specifically affects this cut partial web  23  and is tied to its web guidance, the registration device  26  is now assigned to at least one of the web guidance elements which determine the running of the partial webs  22 ,  23 ,  24 , such as the turning arrangement  07  or the harp  09 , for example.  
         [0040]     In  FIGS. 3 and 4  the registration device  26  is structurally assigned to at least one guide element  28 ,  30 , embodied as a turning bar  28 ,  30 , of the turning arrangement  07 , which impresses a directional change on the partial web  23 . The registration device  26 , and at least one of the turning bars  28 ,  30  are arranged on a common support  25 ,  27 , which is arranged, movable transversely in respect to the running direction, on one or several guide elements  08  in a plane parallel with the plane of the incoming partial web  23 . The elements of the registration device  26  and of the turning arrangement  07  acting together with the partial web  23  are dimensioned in their width transversely to the running direction in such a way that their projection substantially corresponds to the width b 23  of the incoming partial web  23 .  
         [0041]     In  FIGS. 3 and 4  the turning arrangement  07  has a pair of parallel turning bars  28 ,  30 , each of which is arranged on its own support  25 ,  27  at an angle of approximately 45° in respect to the running direction of the incoming partial web  23 , for example. In the area of their surface, the turning bars  28 ,  30  can be provided with openings for an exiting air flow and/or with a surface which reduces friction. They can be pivotable, or can be mounted, on the support  25 ,  27  around an axis vertically in respect to the plane, or around an axis parallel with the running direction of the incoming web  23 .  
         [0042]     Upstream of the turning arrangement  07 , or of the first rotating turning bar  30 , the registration device  26  is arranged on the support  27 , and on a frame  29  has a roller  31 , which is stationary in respect to the frame  29 , for example a deflecting roller  31 , and a roller  32  which is movable in respect to the frame  29  parallel with the running direction, for example a registration roller  32 . If the support  27  is moved along the guide elements  08 , it is simultaneously possible to bring the turning arrangement  07 , as well as the registration device  26 , into a different alignment, i.e. into the running path of another partial web  22 ,  24 . Since the turning bar  30 , as well as the registration device  26 , are fixedly connected with the support  27 , neither their basic alignment in respect to each other needs to be reset, nor are two work steps and/or two drive mechanisms required.  
         [0043]     If each of them is arranged on supports  25 ,  27 , the two turning bars  28 ,  30  are individually movable on the respective guide elements  08 . In this way an offset over one or two partial web widths can take place, depending on the relative position of the turning bars  28 ,  30 . However, it is also possible to arrange both turning bars  28 ,  30  on a common support  25 ,  27 .  
         [0044]     If only one turning bar  30  is arranged together with the registration device  26  on the support  27 , this must be the turning bar  30 , which revolves first following the registration device  26 . In that case the second turning bar  28  can be possibly arranged on its own support  25 . This further support  25  can then possibly be arranged on the same guide elements  08 , and can possibly be driven together with the support  27 , or separately.  
         [0045]     The outgoing partial webs  22 ,  23 ,  24  can either be conducted via a wide registration roller  33  and a wide deflecting roller  34  intended for a wide web  27  to a wide harp roller, not specifically represented in  FIG. 3  or  4 , or, as shown, directly to a harp roller  36 , divided in its longitudinal direction by sections  37 . The number and length L 37  of the sections  37  substantially corresponds to the number and width b 23  of the possible partial webs  22 ,  23 ,  24 .  
         [0046]     In an advantageous further development, two such supports  27  equipped with registration and turning devices  26 ,  27  are provided per whole web  27  in the superstructure  04  of a triple-wide printing press. This is similar to the preferred embodiment in accordance with  FIGS. 6 and 7 , but applied to  FIGS. 3 and 4 .  
         [0047]     As represented in  FIG. 4 , the support  25  can be substantially designed with a width b 25 , which approximately corresponds to the width b 23  of a partial web  23 . In the case of a support  25 ,  27  embodied commonly for both turning bars  28 ,  30 , it can also have the approximate width b 23  of two partial webs  22 ,  23 ,  24 , and can be designed to be stepped, if required, and arranged per turning bar  28 ,  30  on guide elements  08  on vertically offset planes. In this way the two turning bars  28 ,  30  are automatically arranged on different planes, as desired. The embodiment with the width b 23  of two partial webs  22 ,  23 ,  24  can be advantageous for standardizing the support  27  if it is also to be embodied with turning bars  28  extending orthogonally in respect to each other, as will be represented in  FIG. 5  in what follows.  
         [0048]     The reference symbols of recurring parts have been retained in the following variations of the present invention. A detailed description, as well as their function, is not described again and should be appropriately transferred. Also, as shown in  FIG. 3  in view of greater clarity, the partial webs  22 ,  23 ,  24  are no longer represented, but are shown as solid lines symbolizing a respective partial web, if required.  
         [0049]     The turning bars  28 ,  30  in a variation of the first preferred embodiment in accordance with  FIG. 5  are located orthogonally to each other and make the tipping of the partial web  23  possible. After passing through the registration device  26 , the partial web  23  is first conducted around one of the turning bars  28 ,  30 , and subsequently conducted around a first roller  38 , wherein a first contact line on the surface area of the latter with the incoming partial web  23  lies substantially on a common plane with a contact line on the surface area of the first circled turning bar  28 ,  30  with the exiting partial web  23 . The second roller  40  around which movement subsequently occurs is arranged in such a way that a last contact line on its surface area with the exiting partial web  23  substantially lies on a common plane with a first contact line on the surface area of the second turning bar  28 . The axes of rotation of the rollers  38 ,  40  extend vertically in respect to the axis of rotation of the traction roller  18 . Finally, the partial web  23  is conducted around the second turning bar  28 . Depending on the position of the turning bars  28 ,  30  in relation to each other in a direction transversely in respect to the incoming partial web  23 , the partial web  23  is additionally turned into another alignment. No turning takes place if the two turning bars  28  cross in the area of the center line of the incoming partial web  23 . By way of example, in  FIG. 5  the partial web  23  is conducted to a broad, continuous harp roller  39 . The variations described in connection with  FIGS. 4 and 5  are interchangeable.  
         [0050]     In a second preferred embodiment as shown in  FIGS. 6 and 7 , the registration device  26  of a width of a partial web is structurally assigned not to the turning arrangement  07 , but to a guide element  41 , for example a roller  41 , in particular a harp roller  41 , for example, of the width of a partial web and extending with its axis of rotation vertically in respect to the running direction of the incoming partial web  23 .  
         [0051]     As represented in  FIG. 6 , the registration device  26  is arranged with its roller  31  fixed to the frame, as well as the movable frame  32 , on a support  43 , which can be moved along at least one guide element  42  transversely in relation to the incoming partial web  23 . In addition, the harp roller  41  is arranged downstream either on a frame which is separately connected with the support  43 , or on the extended frame  29 , and has a length L 41  which substantially corresponds to the width b 23  of the partial web  23 . If now the support  43  is moved along the guide elements  42  transversely in respect to the running direction, it is possible to simultaneously bring the registration device  26 , as well as the harp roller  41  of a width of a partial web, into a different alignment, i.e. into the running path of a different partial web  22 ,  24 .  
         [0052]     Since the harp roller  41 , as well as the registration device  26  are fixedly connected with the support  43 , it is neither necessary to reset their basic orientation toward each other, nor are two operating steps and/or two drive mechanisms required. In contrast to a harp roller  39 , as shown in  FIG. 5 , extending over the entire width b 17  of a full web  17 , the harp roller  41  of the width of half a web has a considerably lower inertia, because it is shorter and therefore only needs a reduced cross section.  
         [0053]     A turning arrangement  44  is assigned to the support  43  having the registration device  26  and the harp roller  41 . In a preferred embodiment, this turning arrangement  44  is arranged, similar to the preferred embodiments in accordance with FIGS.  3  to  5 , transversely to the running direction of the incoming partial web  23  on a support  47 , which is movable along a guide element  46 . Depending on the requirements, the turning bars  28 ,  30  can again be aligned parallel in pairs, or orthogonally.  
         [0054]     In a further development represented in  FIG. 6 , the superstructure  04  for a triple-wide web  17  has two such devices, which are offset vertically in respect to each other. Thus, one of the three partial webs  22 ,  23 ,  24  can be conducted straight ahead, while the option of turning and subsequent registration exists for the other two partial webs  23 ,  24 ,  22 . The respectively second, vertically offset devices have the same reference symbols in  FIG. 6 , but are identified by an apostrophe.  
         [0055]     For conducting one of the partial webs  22 ,  23 ,  24  into a vertically offset plane, one of the two supports  47 ,  47 ′ has, upstream of the assigned turning arrangement  44 ,  44 ′, at least one, advantageously two rollers  48  substantially of the width of a partial web, for example deflecting rollers  48 .  
         [0056]     For example, in  FIG. 6  all three partial webs  22 ,  23 ,  24  are conducted one on top of the other, wherein the partial web  22  is conducted straight ahead, the center partial web  23  is laterally offset by the width of a partial web laterally underneath the first partial web  22  by means of a turning arrangement  44 , and the third partial web  24  is initially offset vertically by means of the rollers  48  and subsequently laterally by two partial web widths underneath the first two partial webs  22 ,  23 .  
         [0057]      FIG. 7  shows a possible running course of three partial webs  22 ,  23 ,  24 , wherein the partial web  23  is turned by means of the turning arrangement  44 , and conducted to the registration device  26  onto the harp roller  41 . Initially, the partial web  24  is vertically offset by the rollers  48  before it is turned by means of the turning arrangement  44 ′, and conducted to the registration device  26 ′ onto the harp roller  41 ′. The partial web  22  runs straight ahead, for example, over the wide registration roller  33  and the wide deflection roller  34  onto the wide harp roller  36  or a section  37  of the divided one. In place of this running course of the straight ahead running partial web  22 , it is also possible to provide a further harp roller of partial web width, not specifically represented, onto which the partial web  22  is directly conducted without working together with the registration and the deflection rollers  33 ,  34 .  
         [0058]     The arrangement of the deflection rollers  48 , as well as the vertically offset arrangement of second devices for turning and registration of a second partial web  22 ,  23 ,  24  in the preferred embodiment in accordance with  FIGS. 6 and 7  is to be transferred in principle to the preferred embodiment in accordance with FIGS.  3  to  5 . Accordingly, in this case and in particular in connection with triple-wide webs  17  or printing units, a second support  27 ′, not specifically represented, with a turning arrangement  07 ′, as well as a registration device  26 ′, is arranged, movable transversely in respect to the running direction of the incoming partial web  22 ,  23 ,  24 , on at least one further guide element  08 ′.  
         [0059]     The “single” embodiment from FIGS.  3  to  5 , in particular in connection with webs  17  or printing units of only double width, should correspondingly be transferred to the preferred exemplary embodiment in accordance with  FIGS. 6 and 7 . Only the elements or devices with apostrophes or without apostrophes need to be removed in this case.  
         [0060]     In a third preferred embodiment shown in  FIG. 8 , in contrast to the first preferred embodiment, a registration device  51  is not connected directly and rigidly with a support  52  for the turning arrangement  07 , for example with a turning bar  28 ,  30 , but instead is arranged on its own support  53 . Both supports  52 ,  53  are arranged, movable transversely to the running direction, on at least one common guide element  54  in a plane parallel with the plane of the incoming partial web  23 . As in the preceding preferred embodiments, the width of the parts of the registration device  51  and of the turning arrangement  07  acting together with the corresponding partial web  23  is of such a dimension that their projection substantially corresponds to the width b 23  of the incoming partial web  23 . Regarding the possible running paths of partial webs  22 ,  23 ,  24 , which may run straight ahead, as well as be tipped and, if required, be turned, reference is substantially made to the explanations regarding  FIG. 5 . However, in contrast to  FIG. 5 , the tipped partial web  23  is not conducted to the registration device  51  prior to passing through the two turning bars  28 ,  30 , but after looping around the first and prior to looping around the second turning bar  28 .  
         [0061]     In a preferred embodiment, the registration device  51  has only a single registration roller  56 , whose axis of rotation extends substantially vertically in respect to the axis of rotation of the traction roller  18 . The registration roller  56  is arranged in such a way and its cross section is of such dimensions that the sections of the partial web  23  extending between the registration roller  56  and respectively one turning bar  28  form a plane.  
         [0062]     The registration device  51  embodied in this way requires no individual guide element and, as a rule, does not, or only slightly, project laterally out of the exterior profile of the printing press. Furthermore, the distances traveled by the turned partial web  23  are considerably reduced in comparison to registration rollers arranged outside of the lateral profile of the printing press, i.e. for example outside of a lateral frame.  
         [0063]     The partial web  23  tipped in this way and, if required, turned, as well as partial webs  22 ,  23 ,  24  running straight ahead, or also a second tipped and possibly turned partial web  22 ,  23 ,  24 , can be further conducted, as in the preferred embodiments in accordance with FIGS.  3  to  5 , if required, around wide registration and deflection rollers  33 ,  34 , around wide or divided harp rollers  39 ,  36 , or also around partially wide harp rollers  41  represented in accordance with  FIG. 6 . Designed the same as within the scope of the second preferred embodiment, a device in accordance with  FIG. 8 , with the two supports  52 ,  53 , the registration roller  51  and the turning arrangement  07 , as well as the guide elements  54 , in particular for triple-wide printing presses, can be embodied to be twice vertically offset per full web  17 . Regarding the device required for offsetting the respective partial web  22 ,  23 ,  24 , reference is made to the above mentioned preferred embodiment and the rollers  48  to be arranged on the support  52 , but not specifically represented here.  
         [0064]     The guide elements  08 ,  42 ,  46 ,  54  of the preferred embodiments mentioned here can be realized in diverse ways. For example, and as represented, each support  25 ,  27 ,  43 ,  47 ,  52 ,  53  can be guided by several guide elements  08 ,  42 ,  46 ,  54  of the same or different types. For example, the guide elements  08 ,  42 ,  46 ,  54  can be designed as spindles  08 ,  42 ,  46 ,  54  with screw threads at least in portions, which are rotatably seated on both sides, and the spindles  08 ,  42 ,  46 ,  54  mutually assigned to a support  25 ,  27 ,  43 ,  47 ,  52 ,  53  can be rotatorily driven by means of a common drive mechanism, not specifically represented.  
         [0065]     However, the supports  25 ,  27 ,  43 ,  47 ,  52 ,  53  can also be guided in the manner of sliding blocks  25 ,  27 ,  43 ,  47 ,  52 ,  53  in rigid guide elements  08 ,  42 ,  46 ,  54 , for example profiled elements  08 ,  42 ,  46 ,  54 . In this case driving of the support  25 ,  27 ,  43 ,  47 ,  52 ,  53  can also take place by means of a driveable spindle, or in other ways.  
         [0066]     Although the seating of the turning bars  08 , as well as of the registration roller  56  in  FIG. 8 , has been represented as an overmounted seating, it can also be provided on both sides. For this purpose either further guide elements for receiving further supports can be arranged, or the existing multiple guides  08 ,  46 ,  54  are appropriately divided. However, overmounted seating offers advantages in regard to technical outlay and a reduced danger of tilting.  
         [0067]     In a preferred embodiment of a processing machine for web-shaped material, for example a web-fed rotary printing press, in particular in connection with a superstructure  04 , all rotating guide elements  41 ,  31 ,  32 ,  48 , which are only driven by friction and work together with a web  22 ,  23 ,  24  of partial width, are embodied to be of partial width, or as a guide element  36  which can be rotated in sections. This means that, depending on the layout of the press, the last non-driven roller  36 ,  41 , which is assigned to a layer and located upstream of the formers  11 ,  12 , a registration roller  32 , if provided, and possibly one or several deflection rollers  31 ,  48 , are designed to be of partial width, or to be rotatable in sections.  
         [0068]     Still further guide elements, in particular of the partially wide or sectionally rotatable type, can be assigned to a partial web  22 ,  23 ,  24  in the superstructure  04 . Preferably, all rollers assigned to a partial web  22 ,  23 ,  24 , or to their running paths between the longitudinal cutting device  06  and the formers  11 ,  12 , in particular the non-driven rollers  31 ,  32 ,  36 ,  41 ,  48 , are designed to be of partial width or to be sectionally rotatable, and turning bars  28 ,  31  possibly provided in a further development, are designed to be of partial width.  
         [0069]     While preferred embodiments of devices for guiding a partial width web and processing machines including the devices, in accordance with the present invention, have been set forth fully and completely hereinabove, it will be apparent to one of skill in the art that various changes could be made without departing from the true spirit and scope of the present invention which is accordingly to be limited only by the appended claims.