Abstract:
The invention relates to a blast-proof chamber ( 1, 20, 30, 60, 70 ) for improved handling and transport of a detonation-dangerous object, wherein the said blast-proof chamber ( 1, 20, 30, 60, 70 ) comprises an outer chamber ( 2, 21, 32, 61, 71 ) comprising an inner storage chamber ( 3, 22, 33, 62, 72 ) for storage of the detonation-dangerous object. A characteristic feature of the invention is that the inner storage chamber ( 3, 22, 33, 62, 72 ) is arranged movably in the outer chamber ( 2, 21, 32, 61, 71 ) between an open and a closed position.

Description:
[0001]    The invention relates to a blast-proof chamber for handling and transport of detonation-dangerous objects. 
         [0002]    The invention especially relates to a chamber for handling and transport of detonation-dangerous objects of the improvised explosive device type, so-called IEDs, which are used in vehicles, for example, with the aim of creating greatest possible devastation in urban areas. The invention also relates to the handling of explosive devices detected at airports, and to the handling and transport of explodable goods, for example ammunition and explosives. 
       PROBLEM DEFINITION AND BACKGROUND TO THE INVENTION 
       [0003]    IEDs pose a growing threat in present-day society and large resources are invested in the detection and handling of explosive devices at airports, at port terminals and at border controls. 
         [0004]    Detection of an explosive device in freight or in hand baggage at an airport normally involves extensive evacuation and cordoning-off of the region around the explosive device, as well as complicated actions involving remote-controlled manipulators and blast-proof containers. Where necessary, access to gas-tight blast containers for handling of objects suspected of containing or generating toxic gas is also required. Correspondingly, the detection of a vehicle prepared with an explosive device involves extensive evacuation and cordoning-off. 
         [0005]    Defusing of an explosive device applied in a vehicle is normally impossible or very difficult to perform without triggering the explosive device. The doors and wheels of the vehicle can be provided with devices which activate the priming mechanism of the explosive device when the vehicle starts rolling or when a door is opened. 
         [0006]    Blast-proof chambers for the handling and transport of detonation-dangerous objects detected in the baggage control at airports are known from the literature. 
         [0007]    Document GB 2440937 A, 20 Feb. 2008, FIG. 2, describes a mobile blast-proof chamber for use in connection with the baggage control at an airport. On one side of the outer shell 1 of the blast chamber, which shell has the form of an upright cylinder, is arranged an opening 5 into the blast chamber for incoming baggage, and on the other side is arranged an opening 6 out from the blast chamber for outgoing baggage. The blast chamber comprises two mutually facing, curved rotatable doors 2, which are coupled together by two criss-crossed struts and are connected to a rotation device 4. The length of the doors 2 is such that the distances between the doors 2 correspond to the length of the openings 5, 6 in the outer shell 1 of the blast chamber. 
         [0008]    When a detonation-dangerous object is detected, the rotation device 4 is activated, which rotates the doors by a quarter turn in the horizontal plane of the blast chamber, whereupon the doors 2 block the two openings 5, 6 in the outer shell 1 and the blast chamber is closed. After the blast chamber has been closed, the blast chamber containing the detonation-dangerous object is transferred to a safe place. 
         [0009]    The configuration of the blast chamber as an upright cylinder makes the blast chamber wide and unwieldy in the handling of a larger detonation-dangerous object, for example, in the handling of a vehicle prepared with an explosive device. A wide chamber means limited passability in the case of, for example, transports on small urban roads or of transfers between different rooms in a building. 
         [0010]    The configuration of the blast chamber with two inner curved doors and an outer shell also implies, inter alia, the following drawbacks:
       the doors, as well as the outer shell, must be dimensioned for a maximum blast pressure of the explosive device, which makes the blast chamber unnecessarily heavy,   overlapping between the inner doors and the outer shell entails play, which makes sealing of the chamber more difficult,   limited possibilities in respect of the loading and unloading of a detonation-dangerous object to and from the chamber.       
 
       AIM OF THE INVENTION AND ITS DISTINGUISHING FEATURES 
       [0014]    A principal object of the present invention is a flexible blast-proof chamber for handling of detonation-dangerous objects, in which the chamber is configured for high passability in the case of transports on minor roads or of transfers between different rooms in a building. 
         [0015]    A second object of the invention is a blast-proof chamber with improved closing function, in which play has been eliminated or heavily reduced. 
         [0016]    A third object of the invention is a blast-proof chamber with simplified handling of a detonation-dangerous object during loading and unloading. 
         [0017]    The said objects, and other aims not enumerated here, are satisfactorily met within the scope of that which has been defined in the present independent patent claims. Embodiments of the invention are defined in the dependent patent claims. 
         [0018]    Thus, according to the present invention, an improved blast-proof chamber for handling and transport of detonation-dangerous objects has been provided, comprising an outer chamber in which an inner storage chamber is arranged for storage of the detonation-dangerous object. 
         [0019]    A characteristic feature of the blast-proof chamber is that the inner storage chamber is arranged movably in the outer chamber between an open and a closed position. 
         [0020]    According to further aspects of the blast proof chamber according to the invention:
       the inner chamber is arranged detachably in the outer chamber,   the outer chamber is box-shaped or container-shaped with square or rectangular cross section comprising two long sides, a base, a roof and two end faces, whereof the two long sides are open for loading and unloading of the detonation-dangerous object to and from the inner chamber, and the inner chamber is tubular with circular cross section comprising a casing part and two end face parts, wherein the two end face parts are open for loading and unloading of the detonation-dangerous object,   the inner storage chamber is arranged rotatably in the outer chamber between an open and a closed position, via a rotation mechanism disposed in the outer chamber,   the inner storage chamber is rotatable in the vertical plane of the outer chamber,   the blast-proof chamber comprises two separate closing end faces disposed in the outer chamber for closing and sealing of the inner chamber,   the closing end faces are arranged movably in the axial direction in the outer chamber via hydraulic pistons disposed on the inner side of the outer chamber,   the two closing end faces comprise an expandable sealing strip for locking and sealing of the inner chamber,   the rotation mechanism is manual and is operated with a detachable handle disposed on the top side of the outer chamber, wherein the handle is rotatable by a quarter turn, clockwise or anti-clockwise, in the horizontal plane between an open and a locked position, in which the open position automatically releases the inner chamber from the outer chamber via a pretensioned locking mechanism,   the release mechanism comprises a spring bolt and a pretensioning mechanism, wherein the spring bolt in the pretensioned state locks the inner chamber and in the non-pretensioned state releases the inner chamber,   the spring bolt is pretensioned via an electromagnetically controlled spring mechanism,   the outer chamber also comprises a rotatable support plate on which the inner chamber rests.       
 
       ADVANTAGES AND EFFECTS OF THE INVENTION 
       [0032]    The present invention now offers an improved blast-proof chamber for handling and transport of detonation-dangerous objects, for example handling and transport of a suspect vehicle in a town or handling of a suspect baggage item at an airport. 
         [0033]    The movably arranged inner chamber enables simplified handling during loading and unloading to and from the chamber. 
         [0034]    The outer configuration of the chamber enables improved passability in the case of transport on small urban roads or of transfer between different rooms in a terminal building at an airport. 
         [0035]    Separate closing end faces eliminate or heavily reduce the play in opening and closing of the chamber, which also enables effective gas sealing of the chamber. 
         [0036]    The detachable inner chamber enables flexible emptying of the chamber without the detonation-dangerous object needing to be handled directly, for example when storing the object in an explosives store, wherein the inner chamber can be utilized as storage packaging. 
         [0037]    The especially novel aspect of the chamber is therefore its configuration with a movable and detachable inner chamber, as well as closing and sealing with two separate closing and sealing end faces. 
         [0038]    From the above-stated, it will probably be evident that all activities associated with the handling of a detonation-dangerous object can be safely carried out without difficulty via the blast chamber according to the invention. 
         [0039]    The blast chamber according to the invention thus meets all the requirements which might be placed on a blast chamber of the here intended type. 
         [0040]    Further advantages and effects will emerge from a study and consideration of the following detailed description of the invention, including one of its advantageous embodiments, the patent claims and the accompanying drawing figures. 
     
    
     
       LIST OF FIGURES 
         [0041]    The invention has been defined in the following patent claims and will now be described somewhat further in connection with the appended figures, in which: 
           [0042]      FIG. 1  shows schematically a view obliquely from above of a first embodiment of a blast-proof chamber according to the invention, for handling of large detonation-dangerous objects, comprising an outer chamber and an inner rotatable chamber, 
           [0043]      FIG. 2  shows the chamber according to  FIG. 1 , in which the inner chamber is in the closed position, 
           [0044]      FIG. 3  shows a special embodiment of a chamber according to  FIG. 1 , comprising an inner chamber which can be pulled out in the lateral direction, 
           [0045]      FIG. 4  shows the chamber according to  FIG. 3 , in which the inner chamber is in a closed position, 
           [0046]      FIG. 5  shows schematically a view obliquely from above of a second embodiment of a blast-proof chamber according to the invention, intended for handling of small and medium-sized detonation-dangerous objects in baggage controls at an airport, wherein the chamber comprises an inner rotatable storage chamber, 
           [0047]      FIG. 6  shows the chamber according to  FIG. 5 , in which the inner storage chamber has been rotated into the open horizontal position, 
           [0048]      FIG. 7  shows a detailed view of the chamber according to  FIG. 5 , in which the rotation mechanism of the inner chamber can be seen, 
           [0049]      FIG. 8  shows a detailed view of the inner chamber according to  FIG. 6 , in which the drive mechanism for the closing blind of the chamber can be seen, 
           [0050]      FIG. 9  shows schematically a view obliquely from above of a third embodiment of a blast-proof chamber according to the invention, for handling of small detonation-dangerous objects, comprising an inner rotatable chamber arranged for manual rotation via a handle, 
           [0051]      FIG. 10  shows the blast-proof chamber according to  FIG. 9 , in which the inner chamber is rotated into the open position, 
           [0052]      FIG. 11  shows schematically a view obliquely from above of a fourth embodiment of a blast-proof chamber according to the invention, for handling of small detonation-dangerous objects, comprising an inner rotatable chamber, 
           [0053]      FIG. 12  shows schematically a detailed view of a blast-proof chamber according to  FIG. 11 , in which the inner rotatable chamber is in the closed vertical position, 
           [0054]      FIG. 13  shows schematically a detailed view of a blast-proof chamber according to  FIG. 11 , in which the inner rotatable chamber is in the open filling position, 
           [0055]      FIG. 14  shows schematically a detailed view of a blast-proof chamber according to  FIG. 11 , in which the inner rotatable chamber is in the open emptying position. 
       
    
    
     DETAILED DESCRIPTION OF EMBODIMENTS 
       [0056]      FIGS. 1-4  show a first embodiment of a blast-proof chamber  1  according to the invention, especially intended for large detonation-dangerous objects, for example for handling and transport of vehicles prepared with explosive devices, or for transport of explodable goods of the ammunition or explosives type. 
         [0057]    The blast-proof chamber  1  in  FIGS. 1 and 2  comprises an outer chamber  2 , in which an inner movably arranged chamber  3  for storage of the detonation-dangerous object is disposed. The outer chamber  2  is preferably configured as a container with square or rectangular cross section, comprising two longitudinal side parts  4 , a roof part  5 , a base part  6  and two end face parts  7 , whereof the two longitudinal side parts  4  are open for loading and unloading of the detonation-dangerous object to and from the inner storage chamber  3 . 
         [0058]    The roof part  5  and base part  6  of the outer chamber  2  are constituted by parallelly arranged steel beams, the ends of which are fastened to the two end face parts  7 . The steel beams are wholly or partially covered with steel plate. 
         [0059]    The blast-proof chamber  1  is suited for loading and transportation as a conventional container on a lorry and comprises openings  8 , on the side of the steel beams on the roof part and base part of the outer chamber  2 , for a forklift truck. The chamber  1  also comprises fastening devices for a lifting crane. In a special embodiment, the chamber  1  is also equipped with wheels and hitches in order to act as a trailer. 
         [0060]    The inner chamber  3  is preferably cylindrical with circular cross section, comprising a casing part  9 , made of steel plate, and two open end face parts  10 . A configuration other than a cylinder shape is also possible. The inner chamber  3  is rotatable in the horizontal direction in the outer chamber  2  about a vertical centre of rotation A-A. The chamber is opened by a quarter-turn rotation of the inner chamber  3  from the retracted closed position into the open extended position with the aid of a rotation mechanism  11  disposed between the roof part  5  of the outer chamber  2  and the casing part  9  of the inner chamber  3 . The rotation mechanism  11  is preferably constituted by a commercial-type gear mechanism and is therefore not more closely described in the continued text. The rotation mechanism  11  is remote-controlled, but can also be manual. The chamber  1  also comprises a locking and release mechanism for locking and release of the inner chamber  3 . The inner chamber  3  rests on a rotatably arranged support plate  15 , preferably ball-bearing-mounted, which enables the inner chamber  3  to be rotated into different angles. 
         [0061]    In a special variant, the support plate  15  is also rotatable in the vertical direction for angling of the inner chamber  3  in connection with loading and emptying of larger objects. 
         [0062]    The locking and release mechanism is preferably constituted by a spring bolt with pretensioning mechanism, in which the spring bolt is disposed between the outer and the inner chamber  2 ,  3 . The spring bolt locks and releases the inner chamber  3  in the pretensioned and non-pretensioned state. The inner chamber  3 ,  FIGS. 1 and 2 , also comprises two lifting beams  12  mounted on the bottom side of the inner chamber  3 , wherein the beams  12  are intended for unloading of the inner chamber  3  with the aid of a forklift truck. 
         [0063]    The outer chamber  2  comprises two movably arranged closing end faces  13  for closing and opening of the inner chamber  3 . The two closing end faces  13  are movable in the axial direction towards the two open end face parts  10  of the inner chamber  3 . The closing end faces  13  are each mounted on four remote-controlled pistons  14  on the inner side of the end face parts  7  of the outer chamber  2 . In a special embodiment, the closing end faces  13  also comprise an expandable sealing strip, for gas sealing of the joints between the inner storage chamber  3  and the closing end faces  13 . In order to reduce the clearance between the closing end faces  13  and the end faces  10  of the inner chamber  3 , the end faces  10  of the inner chamber  3  are convexly shaped and the two closing end faces  13  are concavely shaped,  FIG. 1 .  FIG. 2  shows the chamber  1  in the open position. 
         [0064]    In  FIGS. 3 and 4  is shown a special variant  20  of the chamber  1  in  FIG. 1 . The special chamber  20  in  FIG. 3 , which comprises an outer chamber  21 , an inner chamber  22  and two closing end faces  23 , has no rotation mechanism for rotation of the inner chamber  22  in the horizontal direction. The inner chamber  22  can instead be pulled out in the lateral direction from a closed inner position into an open outer position. The special chamber  20  comprises two lifting beams  24 , for forklift trucks mounted on the bottom side of the inner chamber  22 , wherein the lifting beams  24  are configured to slide on the inner floor of the outer chamber  21  between two guide rails  25 .  FIG. 3  shows the chamber  20  in the retracted closed position, and  FIG. 4  in the extended open position. 
         [0065]    In  FIGS. 5-8  is shown a second embodiment of a mobile blast-proof chamber  30  according to the invention. The chamber  30  according to  FIG. 5  is intended for handling of smaller or medium-sized objects in a baggage control at an airport. If a baggage item is suspected of containing a detonation-dangerous object, the chamber  30  is closed once the baggage item is inside the chamber  30 . The closed blast-proof chamber is thereafter transferred to a safe place. If no detonation-dangerous object is detected, the baggage item is transported onward through the chamber  30  via an internal conveyor belt  52  to a connecting conveyor belt  31  on the other side of the chamber  30 . 
         [0066]    The chamber  30 ,  FIG. 6 , comprises an outer chamber  32 , in which an inner chamber  33  for storage of the detonation-dangerous object is disposed. The outer chamber  32  is preferably box-shaped with square or rectangular cross section, comprising two similar side parts  34 , a top part  35 , a bottom part  36 , a back part and a front part  38  facing the baggage control, wherein the back part  37  and front part  38  of the chamber  30  are open for passage of a baggage item to and from the inner chamber  33 . The outer chamber  32  comprises two fixedly mounted closing end faces  39  for closing and sealing of the inner chamber  33 . 
         [0067]    The top part  35  and bottom part  36  of the outer chamber  32  are constituted by parallelly arranged steel beams  40 , preferably I-beams, the ends of which are fastened to the side parts  34  of the chamber  30 . The steel beams are preferably wholly or partially covered with steel plate. The chamber  30  is also equipped with wheels for transport of the chamber  30 . 
         [0068]    The inner storage chamber  33  is preferably box-shaped with square or rectangular cross section and comprises two sides  41 , an upper part  42 , a lower part  43  and two open end face parts  44  for the in-feed and out-feed of baggage. The inner chamber  33  is rotatably arranged in the vertical plane of the outer chamber  32  between an open horizontal position and a closed vertical position. The inner chamber  33  can also have a configuration other than a box shape, for example a cylinder shape. The outer chamber  32 , like the inner storage chamber  33 , is preferably made of strong steel plate of the Weldox 900 type. The two open end face parts  44  of the inner chamber  33  are closable, when the inner chamber  33  is in the open horizontal position, via a chain-driven steel blind  46 . 
         [0069]    The inner storage chamber  33  is rotatable by remote control in the vertical plane of the outer chamber  32  via two horizontally arranged rotation shafts  45 . The rotation shafts  45  are disposed between the inner chamber  33  and the outer chamber  32 . The rotation shafts  45  are driven with an electric motor  46  via a chain  47  disposed between a larger drive wheel  48  on one of the rotation shafts  45  and a smaller gearwheel on the drive shaft of the motor  46 . The inner chamber  33  is locked and sealed in the closed vertical position with the two closing end faces  39  and a locking and sealing mechanism comprising an expandable sealing strip  48 . 
         [0070]    The sealing strip  48  is preferably constituted by an inflatable rubber or plastics hose, connected to a pressure tank  49  via a gas line  50 . The gas of the pressure tank  49  is preferably air or nitrogen gas, and pressurization of the locking and sealing strip  48  takes place preferably automatically in response to the rotation of the inner chamber  33  into the vertical closing position. 
         [0071]    On the end face parts  44  of the inner chamber  33  and on the closing end faces  39  is arranged a groove for the application of a sealing strip  48 . The sealing strip  48  can also be constituted by some other expandable material than a rubber hose, for example an expandable metal or metal alloy, which expands via electric voltage or heating. In order to reduce the clearance between the closing end faces  39  and the inner chamber  33  during closing and opening, the end faces  44  of the inner chamber  33  are convexly shaped and the two closing end faces  39  are concavely shaped,  FIG. 6 . 
         [0072]    If the baggage has been deemed to be at risk of detonation, the inner storage chamber  33  is closed in the horizontal position by the steel blind  46  of the inner chamber  33  being lowered over the two open end face parts  44 . The storage chamber  33  is thereafter rotated into its vertical position, in which the locking mechanism of the closing end faces  39  is activated. The function of the steel blind  46  is to close the inner storage chamber  33  for incoming and outgoing baggage and keep the baggage in place in the storage chamber  33  during the rotation of the storage chamber  33 . 
         [0073]    On the inner side of the two sides  41  of the storage chamber  33  are arranged two vertical supporting walls  51 , on which are mounted the drive rollers  53  of the internal conveyor belt  52 . 
         [0074]    The drive rollers  53  are normally driven by a separate, remote-controlled drive mechanism  54 , but can also be coordinated with the outer conveyor belts  32  by coupling. The steel blind  46  of the storage chamber  33  runs on the end faces of the two supporting walls  51  via a chain  55  and is driven by two rotation shafts  56  disposed on the sides  41  of the inner chamber  33 . The rotation shafts  56  are in turn driven by an electric motor  57  via a transverse gear-driven drive shaft  58  mounted on the upper part  42  of the inner chamber  33 . The transverse drive shaft  58  drives the two rotation shafts  56  via two chains  59 , one on either side  42  of the inner chamber  34 . 
         [0075]    In a first special embodiment of the chamber  30  in  FIG. 6 , the chamber  30  is arranged for emptying of the detonation-dangerous object into a collection bin directly beside the conveyor belt  31  without the chamber  30  needing to be moved. The detonation-dangerous object is emptied into the collection bin by tilting of the inner chamber  33 , by about 45 degrees, towards the collection bin, which is placed obliquely below the inlet or outlet of the chamber  30 . The steel blind  46  is rolled up and the internal conveyor belt  52  is started, whereupon the detonation-dangerous object is transferred to the collection bin. In a second special embodiment of the blast-proof chamber  30 , the inner storage chamber  33  is arranged detachably from the outer chamber  32 . The chamber  30  is emptied by the inner storage chamber  33  being released and lifted out from the outer chamber  32  for transport to another place. The release of the inner chamber  33  is realized by the rotation shafts  45  which hold the inner chamber in place being adjustable in the radial direction between an inner and an outer position, in which the outer position releases the storage chamber  33  and the inner position locks the storage chamber  33 . 
         [0076]    In  FIGS. 9 and 10  is shown a third embodiment of a mobile blast-proof chamber  60  according to the invention, intended for handling of smaller detonation-dangerous objects in security controls at an airport. The chamber  60 , comprising an outer chamber  61  and an inner chamber  62 , is arranged for manual rotation of the inner storage chamber  62 , in the horizontal plane of the outer chamber  61 , between a closed and an open position. The inner chamber  62  is closed with two fixedly mounted closing end faces  63  disposed inside the outer chamber  61 . The inner chamber  62  is rotated with the aid of a handle  64  mounted on the top side of the outer chamber  61 , coupled to a rotation mechanism inside the chamber  60 .  FIG. 10  shows the inner storage chamber  61  in the open position. The chamber  60  is also equipped with a fixedly mounted wheel pair  66  on one side of the chamber  63  and a rotatable wheel  67  on the other side for guidance of the chamber  64  during transfer. In a special embodiment of the chamber  60 , the inner chamber  62  is also arranged detachably from the outer chamber  61 . 
         [0077]    In  FIGS. 11-14  is shown a fourth embodiment of a blast-proof chamber  70  according to the invention. The chamber  70  according to  FIG. 11  is here meant to be used as a waste chamber (litter bin) for, for example, paper and plastics waste, and is intended for placement at airport terminals, bus and train stations or in underground railways, where there is increased risk. The blast-proof chamber  70  thus acts as an ordinary litter bin, but is also capable of handling the blast pressure from smaller explosive devices. The waste chamber  70  comprises an outer chamber  71 , which comprises a rotatably arranged inner storage chamber  72 . 
         [0078]    The waste chamber  70  comprises two waste chutes, a waste chute for plastic  73  on one side of the waste chamber  70  and a waste chute for paper  74  on the other, opposite side of the waste chamber  70 . The inner storage chamber  72  is rotatable in the vertical direction in the outer chamber  71  about a horizontal centre of rotation B-B via two similar rotation mechanisms  75 , a rotation mechanism for the waste chute for plastic  73  and a rotation mechanism for the waste chute for paper  74 . The inner chamber  72  is adjustable between three different positions in relation to the respective waste chute; a closed vertical position, a filling position, in which the chamber  72  is tilted by about 45 degrees, and an emptying position, in which the chamber  72  is angled by about 90 degrees into the horizontal position. The waste chutes  73 ,  74  are tubular and inclined, by about 45 degrees, for direct connection to the inner inclined chamber  72 . Each of the tubular waste chutes  73 ,  74  comprises two protective flaps, an upper protective flap  76  and a lower protective flap  77 . The upper protective flap  76  comprises a sensor  78 , which senses when the upper protective flap  76  is opened for the filling of waste. 
         [0079]    When the upper protective flap  76  is opened, the sensor  78  activates the rotation mechanism of the waste chamber  70  for plastic  75  or for paper via a control and monitoring unit  79 , whereupon the inner chamber  72  is tilted and connects to one of the tubular waste chutes for plastic  73  or for paper  74 . After a certain time delay, the lower protective flap  77  is opened, at the same time as the upper protective flap  76  is closed. After a further time delay, the lower protective flap  77  is closed, at the same time as the inner chamber  72  is rotated back into its vertical closing position. 
         [0080]    The rotation mechanism  75  is driven by an electric motor  80  via a chain  81  and two gearwheels  82 ,  83 , a smaller gearwheel  82  connected to the drive shaft of the motor, and a larger gearwheel  83  connected to a rotation shaft  84  on the inner chamber  72 . The inner chamber  72  is closed with two fixedly mounted closing end faces, an upper closing end face  85  and a lower closing end face  86 . On the closing end faces  85 ,  86  are disposed two axially movable sleeves  87 ,  88 , an upper  87  and a lower sleeve  88 , which sleeves, when activated, slide over the closing end faces  85 ,  86  and over the end faces of the inner chamber  72  and thus lock the chamber  70 . The sleeves  87 ,  88  are preferably driven by a separate piston mechanism (not shown), but can also be connected to the rotation mechanism of the inner chamber  72 . In the sleeves  87 ,  88 , a sealing strip can also be incorporated for gas sealing. The inner chamber  72  is divided into two sections, a plastic section  89  for plastics waste and a paper section  90  for paper waste. The two sections are separated from each other with a wall  91 . 
         [0081]    The invention is not limited to the shown embodiments, but can be varied in different ways within the scope of the patent claims.