Abstract: An agricultural bagging machine is disclosed which includes a plurality of horizontally disposed and vertically spaced cables positioned at the rearward end of the tunnel of the machine. The cables are dragged through the silage being bagged as the bagging machine moves away from the closed end of the bag so that the proper amount of density is created in the material being bagged. Each of the cables defines a cable loop which extends rearwardly from the output end of the tunnel into the open end of the bag. The lengths of the cables may be adjusted to permit the density to be controlled. The number of cables may also be varied to control the density in various types of silage materials.

Abstract: A carousel trash compactor for selectively sorting and recycling multi-component refuse. The carousel includes a turntable mounted in the lower portion of the housing and supporting refuse bins rotatable with the turntable to position a selected bin in a refuse receiving position or a refuse compaction position. In the housing upper portion, a stationary compactor mechanism is positioned for compacting refuse in a bin therebeneath. A lid closes an opening in the top of the housing over the refuse-receiving position. A receptacle retrieving subassembly mounted in the upper portion of the housing facilitates removal of a full receptacle from the housing. Automatic control devices are provided for selectively rotating the turntable and bins, for weighing each bin, for compacting the refuse and for extricating the filled bins from the housing.

Abstract: A packaging machine and method of packaging utilizing chains of interconnected pre-opened bags which are fed sequentially and one at a time to a load station. Bag tops are clamped against spreading horns by sensor equipped clamps which cause disablement of a bag filling mechanism unless a bag is properly located at the load station. A bag spreading and transfer mechanism spreads a loaded bag and transfers it to a bag closure station for sealing. The mechanism includes bag supporting structures for supporting the bag during loading transfer and sealing and for expelling air from the bag and compressing the contents prior to completion of the package. The method includes both the steps of expelling air and compacting the contents and the step of allowing the differential escape of oxygen from a package while retaining nitrogen therein.

Abstract: In a conveyor system of dust containers for using in a building, particularly an apartment house, dust discarded from respective houses is contained in a cylindrical polysheet, which is clipped at separated points to form dust capsules having a smaller diameter than the inner diameter of a vertical chute so that the capsules in the chute are subjected to air resistance. A pressure detector is provided near the bottom of the chute. In response to the output of the pressure detector the quantity of air escaping to the outside from the upper end of the chute is controlled so that the falling speed of the capsule is adjusted to a safe value.

Abstract: A fabric bag is used to be packed with shredded waste material from a shredder/compactor. During loading, the bag is confined in a close-fitting steel box and is supported on a fork lift-type ballast. Use of the box as a confining rigid jacket enables the shredder/compactor to compress and compact the shredded feed. The front wall of the box can then be removed and a fork lift-type jack used to extract the packed bag and pallet as a unit, ready for shipping.

Abstract: A preassembled unit for a sewage nitrification field has minimum outward dimensions of loose, lightweight plastic aggregate material enveloped and bound by a plastic sleeve around a horizontal conduit. In one embodiment, the unit takes a bag form with an aggregate-filled netting sleeve concentrically surrounding and fastened to the ends of corrugated plastic vent pipe. In another form, the sleeve is a plastic extrusion of rectangular cross-section and the conduit can be formed integrally with the sleeve. Cross-webbing is added for strength. In ground installation, conduitless units make up the insufficiency of aggregate dimension. Mating male and female end caps are used to interconnect the conduit of adjacent units end-to-end. Apparatus for manufacturing the concentric netting sleeve/vent pipe version has a hopper that discharges aggregate into the top of a mandrel and an annular disc or helical auger blade that pushes the aggregate forward into the sleeve.

Abstract: A trash compactor is provided having at least a hollow compaction chamber rtically disposed on a base and a compacting ram slidaly fitted within the compaction chamber, such that the compacting ram is disposed above the trash to be compacted. The trash to be compacted is first loaded into the compaction chamber between the base and the compacting ram. A downward compaction force is then applied to the compacting ram to compact the trash within the compaction chamber to the required density. The downward compaction force is then maintained while the compaction chamber is removed from around the compacted trash. Finally, the downward compaction force is removed from the compacting ram thereby leaving a compacted trash slug. The trash may be wetted prior to compaction to further enhance the delamination characteristics of the trash slug.

Abstract: An auto-tamping funnel system for tamping a product in a container includes a downwardly converging funnel having a bottom outlet disposed adjacent an open top of the tray and a side recess or cutout near the bottom outlet. A door is sized to fit closely in the bottom outlet and in the side recess and a mounting mechanism mounts the door for movement such as rotation between a tamping position where the bottom outlet is closed by the door and a receiving position where the side recess is substantially closed by the door and the bottom outlet is unobstructed. A moving mechanism moves the door between the tamping and the receiving positions. Preferably, the mounting mechanism includes a pivot axis for the door which is adjacent the bottom outlet and the bottom outlet and the recess of the funnel are rectangularly shaped. A pressure distributing mechanism also provides a maximum tamping pressure against the product, when the door is in the tamping position, at a location which is spaced from the pivot axis.

Abstract: A compacting apparatus is provided for compressing material within a flexible bag including a pair of compression rollers which move from an upper to a lower position within the apparatus while contacting the bag. Vertically extending guide rails are provided for guiding the rollers in their movement and the rails are oriented in diverging relationship to each other to allow the rollers to move outwardly as they move downwardly. In addition, the guide rails are mounted to permit at least one of the rollers to pivot outwardly as the bag is filled with material and as the material is compacted.

Abstract: A waste container includes a hollow body having an open top end, a cover detachably provided on the open top end, and a press member movably mounted on the cover and having a plate portion disposed horizontally inside the hollow body. The press member is vertically movable inside the hollow body to compress garbage inside the hollow body.

Abstract: A device for emptying a barrel having a highly viscous content by pushing a piston into the barrel. In order to prevent the barrel from being deformed or damaged, the device includes a turntable onto which the barrel can be mounted. The barrel can be reinforced on its outer periphery by means of a flexible looping element wound therearound, which looping element is unwound from or wound onto a drum.

Abstract: Apparatus and process for the packaging and pressing in bale form of loose fiber material comprising short-length fibers or fibers of high slipperiness, using a fill shaft (2) in which a distributing means (6) ensures that the fiber is transferred uniformly to a clearer means (7) which already has the width (4) of the press container opening (5), the clearer means (7) transports the fiber together with a longitudinal homogenizer means (9) in such a way as to ensure uniform filling of the press container (11), and the fiber so introduced can then be pre-pressed, end-pressed, packed in bale form and reinforced in a conventional manner.

Abstract: Apparatus for shifting particulate material from one end of a pouch toward the other. In pouch form, fill, seal apparatus, a web of pouches is filled, the material tending to lodge in the bottom portion of each pouch. A pair of twisted belts pass the web on an upper and lower run wherein the bottom of the pouch is elevated as it passes over the belts to cause a product within the pouches to redistribute itself uniformly throughout the pouch.

Abstract: An annular container mounted at the base of a passage between a layering tube and a central mandrel is charged with a layered tube of flexible tubing delivered over a floating mandrel when coaxially in contact with mandrel by driving rollers coacting with pinch rollers on the floating mandrel. The tubing passes over the mandrel and gathers in the layering tube while being compacted by two sets of shoes reciprocated 180.degree. out of phase by rotating discs and connecting rods. When sufficient tubing has been delivered the floating mandrel is raised to enable a hot wire to pass between the mandrels to sever the tubing. The layering tube and central mandrel with the container can then be carried by a turntable through further stationary positions where the layered tubing is further compressed by reciprocable rings, a lid is put on the container to form a cassette and the cassette is discharged.

Abstract: A packaging machine for the packaging of materials to be disposed comprises a container for receiving an open bag as well as evacuation means and a lid which can be opened and hermetically seals the container from the exterior. In order to avoid a contamination of the lid at the inner side thereof, the bag has a collar and a seam connected thereto. The latter is hooked in supporting bolts of the lid.

Abstract: An arrangement for closing valves of valve bags filled by a filling machine comprises at least one conveyor arranged to transport valve bags in flatly lying position and a unit for closing the valves of the valve bags and associated with the conveyor. At least one abutment is located above the conveyor and is turnable outwardly beyond a movement region of the valve bags. Two first parallel spaced plates and two second parallel spaced plates are arranged above the conveyor and are movable transversely to a transporting direction of the latter to provide, respectively, for orienting the filled valve bags and for preparing the filled valve bags for closing of their valves.

Abstract: A system for automatically filling cans with elongated products, comprising a chamber for filling an empty can and located above the can in a stationary filling position and a device for projecting successive groups of parallel elongated products through a side opening of the chamber as the filling chamber is moving downwards, the invention being in particular applicable to the filling of cans with French beans or carrots.

Abstract: A quantity of the powdered preparation (2), advantageously including a binder, is placed in a container (1) which is open in its upper portion and the lower portion of which is defined by a tray (4) intended to contain the resultant compact at the end of the operation. The hot compression of the preparation (2) is performed, the compacting piston (13) being equipped with a heating device (14). The heating makes the compact more cohesive, and if a binder is present, increases its fluidity. The invention offers the possibility of using microencapsulated binders as well as hydrophobic binders. The invention can be used for compacted makeup powders.

Abstract: A container for transporting a compressed block of tobacco (18) comprises rectangular bottom top front rear and two side walls (2,4,1,3,5,6) which are formed of pliable sheets of non-shape sustaining fabric, such as woven polypropylene. The top wall (4) is connectable by a sliding clasp fastener (9,10,11,12) along three of its edges to the adjacent upper edges of adjacent walls.

Abstract: This invention discloses an improved form of tire compaction apparatus in which comprises an open frame, motorized work platform having an extremely short turning radius. The platform has an elevatable work floor, open for easy access by, and support of, one or two workmen; on one end the apparatus is provided with a tire compaction apparatus of our invention; the opposite end is provided with a raisable cargo platform for supporting either a unitized pallet of cargo for repacking or for positioning a controllable conveyor end for delivering products to be repackaged.

Abstract: The invention relates to a pharmaceutical bottle having a neck region with an open end, pills therein, a fibrous hygroscope member, such as a cotton wad, in the neck region of said bottle and a closure cap sealing the bottle opening. The neck region has on its inner surface a leaflet retaining ring which serves to hold the leaflet in place within the bottle immediately after the insertion. The tendency of the leaflet to unfold or open, causes the edges of the leaflet to engage the retaining ring and to be held in place at least until the bottle is sealed. The leaflet is in compression engagement with the fibrous hygroscope member, such that the pills are substantially prevented from moving relative to one another.

Abstract: The process has a first phase of temporary subdivision of a container in a plurality of sectors, each assigned to contain a powder of different characteristics, through means of temporary subdivision, a second phase of filling such sectors, a third phase of partial pressing operation of such powders, a fourth phase for removing said means of temporary subdivision and a fifth phase of final pressing. The above process is executed with an apparatus including a frame which, by means of tubular cells, defines said subdivision sectors of the container. Said cells are connected to means for the feed and the controlled delivery of said powders and pressing pistons translate in them.

Abstract: Segmented cosmetic articles are made by positioning an empty pan at the bottom of a sleeve having interior partitions forming separate compartments or chambers extending longitudinally the full extent of the sleeve, with each compartment being adapted to receive a corresponding charge of loose powder (each preferably of different color) through the end of the sleeve distal with respect to the pan. A ram or piston assembly havin solid segments conforming in shape to each separate chamber then is slidably received within the sleeve through the opening through which loose powder is admitted, and telescopically advanced relative to the sleeve toward the pan at other end thereof sufficient to pre-press or partially compress the powder charge into the pan. By this action, all segments of powder corresponding to the charge in each chamber of each sleeve, respectively, are partially compressed simultaneously.

Abstract: This disclosure is directed to a compacting machine for compacting material in a carton having closure flaps and includes a housing defining an elongated compacting chamber in which reciprocates a ram for compacting material within the carton when the carton is disposed with its flaps folded exteriorly thereof, a door through which a carton and the material compacted therein can be discharged from the compacting chamber, and a plurality of fingers which are operative during the discharge motion of the carton to effect the folding of the carton flaps to a closed position. The compacting machine further includes a venturi-like passage which receives a ram head having spring biased relatively movable opposite sides, and the ram head being guided during its movement in a direction to compact the material and carrying a panel for closing an opening through which material which is to be compacted is deposited in the compacting chamber.

Abstract: To retain compressible articles such as paper towels, toilet paper and the like tightly compressed in a weldable foil, a feeding push element (3) pushes the articles into a bag and, in accordance with the invention, the bottom of the bag is yieldingly restrained to permit movement of the articles into the bag while displacing the bag against a yielding force. When the bag is filled, the counter abutment plate (6) adjacent the bottom of the bag has reached a limit or terminal position, so that articles in the bag are compressed. Hold-down elements then close over the still open end of the bag, permitting sealing of the still open bag while the articles are retained compressed. The abutment plate can then be moved out of position for further transport of the filled bag with the material retained therein in compressed condition.

Abstract: A case packing apparatus having a conveyor for moving a plurality of articles seriatim in a first direction to a location where means substantially perpendicular to the conveyor move a predetermined number of articles in the perpendicular direction into a case to form a layer within the case.

Abstract: Improved method and apparatus for continuously folding, heating, and tacking to the sides of the package panel the excess packaging material created by forming the package from a web of polyfoil material. The method and apparatus is particularly useful in form, fill, and seal machines that form a plurality of aseptic sealed packages from a continuously advancing tube filled with a product, and incorporate a plurality of package receiving means mounted on a continuously advancing structure that forms sealed product filled packages into rectangular finished bricks by squaring the package, heating the excess material, folding the excess material against the package until it cools to thereby tack it.

Abstract: A technique is described by which a predetermined amount by weight of ground coffee can be packaged into a container while the coffee density may vary within a range. The amount of ground coffee is supplied into a container along a feed path to fill the container and form a column that extends above the upper rim of the container. The ground coffee is compressed to a predetermined head level by compressing a region around the feed path while leaving a small column of uncompressed coffee. In another embodiment, the volume of the container is expanded during compression by outwardly deforming a container end. This enables the stiffening of the ground coffee to support a smooth unbeaded outer wall after vacuum packing without paneling effects.

Abstract: An apparatus for increasing the volumetric efficiency of a shipping container of standard tire carcasses is shown as a powered attachment to a standard warehouse tug or forklift. A horizontally extending steel plate, extending forward from the front of the tug, is powered for vertical motion by a double action, two stage hydraulic cylinder. The plate is enclosed by tightly fitting sliding stripper bars, which are spring-loaded into both the top and bottom surface of the plate; the stripper bars have a bronze wiper bushing at the point of contact with the plate, and are powered for wiping motion across the plate by a pair of balanced hydraulic cylinders.A vertical set of powered outriggers is installed on vertically acting hydraulic cylinders to provide a reacting force against the roof or side wall corners of a shipping container.In use, a standard, interleaved rick of tires is installed in a normal manner within a container.

Abstract: With the device and method, ground meat is pumped through an elongated discharge tube into a plastic bag at the bottom of a frustoconical-shaped mold casing. The mold casing cooperates with a pneumatic or air inflatable elastic resilient piston that causes the meat being pumped through the discharge tube to be packed tightly down to a desired texture. As more meat is pumped into the bag and mold casing, the piston when inflated has a varying diameter and the mold casing moves axially downward with respect to the resilient piston to allow for more room for meat in the mold casing and bag until a point is reached where the discharge tube along with the inflated piston are forced out of the mold casing by downward movement of the mold casing.

Abstract: Pneumatic synthetic resinous foams are used as dunnage. Foams are added to a package under fluid pressure; the package closed, the pressure reduced to atmospheric, and particulate pneumatic foam expands to fill container.

Abstract: A continuously operating automatic vacuum bagging device equipped with shaping and compacting boxes and with a bag-holder chute is characterized by a rotating platform carrying a vertical turntable and a number of shaping and compacting boxes equal to the number of working positions. Each position is intended to carry out a complete packaging operation, including the placement of a bag on a chute, its filling and the compaction by vibration, its placing on the vacuum, and its closure.

Abstract: A portable apparatus for handling cheese, including a base and a turntable mounted on the base. The turntable has cutout recesses in the periphery thereof for moving molds in a circular locus. A platform is provided on the base for supporting the molds as they are being moved in a circular locus. The base includes stations. A filling and weighing station is provided on the base whereby curd is filled into the molds and weighed to a predetermined level. A compacting station is also provided on the base whereby the curd in the molds will be pressed to remove the air therefrom and packs the cheese within the molds. The recesses and the turntable are in registry with the stations on the base.

Abstract: Disclosed is an apparatus for crushing differently shaped and/or sized containers of waste material without disassembly of the device. A mold, having an inner cavity sized so as to accommodate a larger container, has a sleeve located therein which can be locked to the mold for simultaneous operation. The sleeve has an inner cavity of a shape and size so as to contain the smaller container and also to allow a ram to move through the sleeve cavity and compress the smaller container. The ram also has a structure for locking the sleeve to the ram so as to permit the sleeve ram combination to crush a larger container which has been located in the mold cavity. The locking and unlocking of the mold/sleeve or sleeve/ram as well as the mold movement and ram movement are all remotely controlled so as to permit crushing of various sized and shaped containers without disassembly of the press and the consequent exposure of workers to possible hazardous conditions.

Abstract: A receptacle for use in compacting liquid laden trash and removal of liquid from said trash. The receptable is a bag made from a porous fabric of hydrophobic material which resists leakage of the liquid within the trash. The bag is crushed within a compactor causing liquid to pass out through the wall of the bag. The receptacle includes means to suspend the bag with the opening up in the compactor and to close the opening once the receptacle is removed from the compactor. A handle on the receptacle facilitates removal of the filled receptacle.

Abstract: Apparatus for packing bulk material including high moisture agricultural products such as grain in plastic bags has a transferring mechanism with a rotating device disposed in a generally upwardly directed plane relative to a support frame for positioning and locating the rotating device to create a rotating wedging action against bulk material within a plastic bag to provide an acceptable level of density both for ensiling of agricultural products and for storage of bulk materials.

Abstract: This invention relates to improvements in refuse bins incorporating compacting means for domestic use, wherein the compacting plate comprises two upwardly oriented tabs which are placed in housings in the lid to be slidably associated with a control member. Catches facing opposite each other and borne by said tabs come into slides in the control member embedded in a groove in the lid. In this way, by subjecting the control member to a translation, it may, at the end of a stroke, be pivoted with respect to the catches in order to orient it vertically with a view to vertically actuating the compacting plate.

Abstract: A trash compactor is disclosed which has a wheeled bin within a trash compactor cabinet. The bin is adapted to contain a trash bag and the trash compacted therein and then may be withdrawn partially from the cabinet so that a handle may be inserted downwardly into vertical apertures in the front of the bin. A fixed pin and latches provide a reaction means to secure the handle in a downward position in the bin front, and this also secures the front wheels of the bin in a downward position of a lost motion between the front wheels and the bin. The wheeled bin may then be completely removed from the cabinet and wheeled to the disposal site. The container front may be unlatched and hinged forwardly and downwardly so that the trash bag may be pulled horizontally out of the wheeled bin for ready removal.

Abstract: A trash compactor and collapsible box for use therewith to handle waste material generated during flight of passenger-carrying aircraft. The trash compactor includes a housing formed with front and rear box chambers to receive first and second collapsible trash-receiving boxes. A front door is provided for the housing having a trash-receiving chute in its upper portion. The first box is initially disposed in the front box chamber. When it is filled, the front door is opened and the first box is pushed to the rear box chamber. The second box is then positioned within the front box chamber to receive trash, and the front door is shut. The collapsible boxes have a front wall disposed at the same elevation as the lower edge of the chute, while the tops of the side and rear walls are at a higher elevation than the top of the front wall to permit the boxes to receive a maximum amount of trash for their size. The bottom portion of the wall is of liquid-tight construction.

Abstract: Compression packaging of flexible hose into a packaging container using an elongated peripherally closed housing supporting and surrounding an elongated section of flexible hose. A piston is placed at one end of the housing in peripherally sealed relation to the housing. A packaging container is placed at the second end of the housing. Suction is applied at this second end of the housing to create a pressure differential across the piston without creating a pressure differential across the hose wall, causing the piston to travel the length of the housing for axial compression of the hose into the packaging container.

Abstract: An apparatus and method for case packing flexible product-containing bags is described. Rows of flexible product-containing bags are fed onto a tongue assembly. The tongue assembly has a flat plate which guides the bags into a carton, a movable lip which supports the bags from below and means for moving the lip from a bag-supporting position to a non-supporting position. The tongue assembly containing the bags is inserted into the carton and the movable lip is moved into a non-supporting position, allowing the bags to drop into the carton. The flat plate is also used to partially compress bags which have already been deposited in the carton.

Abstract: A method of and an apparatus for the packaging of radioactive waste wherein a steel container is placed in a horizontal hydraulic press chamber with the open end of the container turned toward a hydraulic ram, radioactive waste is accumulated ahead of the open end of this container, the ram is advanced to displace the radioactive waste into the container and then to corrugate the container wall and compress the radioactive waste against a retractable wall and the wall is then retracted to permit the ram to force the package out of the chamber.

Abstract: Method and apparatus which reduces the charger height and the total cycle time when packing leaf or stripped tobacco by the two fill approach. When the first fill is completed, an air pressure differential is established across the tobacco in the charger from top to bottom, the pressure differential compacting the tobacco to make room for the second fill. The second fill is then supplied and the two fills are compacted into the compression chamber by the packer ram. The air pressure differential is established by providing a volume of air under pressure between the press head of the ram and the tobacco of the first fill and withdrawing air from the bottom of the charger, and withdrawal of air is continued during the second fill and the compression stroke of the ram.

Abstract: A bag folding and loading machine has a pivotal swatter which transfers thin film bags from delivery conveyors to a folding assembly. Vanes on the swatter are located on planes substantially aligned with the direction of motion of the swatter which contacts the bags along three sides of the vanes to form the bags into a U-shaped configuration upon delivery. Pivotal flippers are at the sides of a U-shaped channel into which the bag is delivered. Flippers rotate through 90.degree. to fold the bag in thirds, after which it is transferred to the carton by a stomper.

Abstract: This relates to an apparatus for forcing fill-goods into a container immediately before the lid is applied to the container. There is provided a tamper head which engages the product to force the solids into the container. Associated with the tamper head is a separately axially moved spring-loaded hood having a tapered lower surface which serves first to align a container with the tamper head, then squeeze off any fill-goods which overlies the rim of the container, and then forms a seal with the container rim to prevent liquid fill-goods from overflowing the container as the projecting fill-goods is pressed into the container. The tamper head has a liquid cavity which opens through the lower part of the tamper head and which is controllably opened to the exterior of the tamper head to receive excess liquid during the pressing in of the fill-goods.

Abstract: A pack or bundle comprising a bag of thermoplastic film such as polyethylene, individual packages of rolls of paper, such as packages of four rolls of toilet tissue, packed in the bag, a closure panel inserted in the bag engaging the contents, the panel being heat-sealable on its outside face, the bag having a marginal lip at its mouth projecting beyond the closure panel folded over on the outside face of the closure panel and heat-sealed thereto to close the bag, and the method of making such bundles involving inserting the contents and the closure into the bag through its mouth, and folding over the lip and heat-sealing it to the panel.

Abstract: An autoclave for sterilizing used medical equipment and compacting same for disposal comprising a sealable receptacle lined with a thermoplastic liner wherein the liner forms an interior region for receiving used medical equipment. The sealable receptacle is provided with a hydraulic ram for compressing and crushing the equipment contained in a thermoplastic wrap. Thus the medical discards are compressed into portable capsules which then may be discarded in landfills. The hydraulic ram includes controls for automatic cycling of the compression and ejection strokes and the autoclave itself is provided with a steam inlet means through which steam is injected into the liner both to soften the liner and to sterilize the debris before compression. The ram actuation may be coupled to a recorder which records the sterilization temperatures and may include interlocks and clock limits to preclude injury to the operator.

Abstract: A machine for cleaning the flanges of cans. After fruit has been deposited in cans being carried by a conveyor, pistons that are slidably carried by a second conveyor are caused to enter each can. Each piston is so constructed that it severs fruit material on the can flange and compresses the fruit therein.

Abstract: The waste collecting apparatus includes a container with a movable wall which rises during accumulation of waste within a container and which compacts the waste within the container. Outlets for the exhaust of the carrier medium are provided in the stationary wall of the container in one embodiment or in the movable wall in a second embodiment. Compressed air may also be delivered to the container in a pulsed manner so as to impart a tamping action to the movable wall during a filling operation.

Abstract: The present invention relates to a device for feeding a substrate into the cells of a set of growing cells placed underneath the device. The feeding device includes two horizontal feeding rolls parallel to each other. Each feeding roll includes a plurality of pin elements which project radially from the face of the rolls in an outward direction. The pins are placed in the normal planes of the axes of the feeding rolls in an alternating fashion with respect to the rolls. This arrangement allows the pins to interlock with each other in the vertical plane through which the substrate is fed. The substrate, by the effect of the circumferential velocity of the feeding rolls, is introduced into the cells so as to compact any material deposited earlier into the cells.