Abstract: An apparatus for adjusting the path that a web formed by striking a contoured surface baffle will take as it descends to a collection surface, in which the baffle is mounted on a pivot plate which will pivot and cause the web to leave the contoured surface baffle at the desired angle.

Abstract: An oscillating hauloff device for removing blown film from an extruding apparatus has an arrangement of idler rolls for passing film through the unit to provide constant film path length within the hauloff and constant speed of the film exiting the hauloff.

Abstract: A method and apparatus for spinning, drawing and winding a synthetic multi-filament yarn, wherein the yarn is subjected after drawing and prior to winding to a heat treatment for purposes of reducing its shrinkage tendency. In the heat treatment, the yarn advances along an elongated heating surface closely adjacent thereto but substantially in no contact therewith. The heating surface has a surface temperature which is above the melt point of the yarn. During the heat treatment, the yarn is subjected to a tension which is lower than the tension required for plastic deformation. The yarn wound by this method has a heat shrinkage tendency which is typically more than about 20%.

Abstract: A method and apparatus for producing highly-oriented polyester sheet comprises a two-stage drawing process. The first drawing stage is performed within a zero-gap milling and stretching roller assembly comprising a pair of opposed rollers defining a nip therebetween and wherein the rollers are rotated in opposite directions at different lineal surface velocities such that a predetermined draw ratio is defined therebetween. Amorphous polyester sheet is conducted through the nip of the opposed rollers, and as a result of the simultaneous milling and stretching of the polyester sheet, the amorphous polyester is transformed into crystalline polyester as a result of orientation-induced crystallization. The crystalline polyester sheet is heated above the glass transition temperature (T.sub.g) immediately downstream of the nip defined between the pair of opposed rollers, and an exit bridle assembly is disposed downstream of the pair of opposed rollers.

Abstract: An apparatus for preparing meatballs which comprises a meatball forming device and a meatball cooking device. The meatball forming device comprises a housing, which has a top opening communicating with a lower output tube. Between the top opening and the output is a mechanism having planar belts entrained around two pairs of rollers, said belts being opposably rotated by turning a crank handle on a single roller. The faces of the belts contact one another, and each face has matching, aligned semi-spherical indentions. Ground meat is pushed into the top opening, and the roller crank is turned to opposably rotate the belts. Meat is squeezed into the spherical space between the belts and communicated through the output. The meatball cooking device comprises several cooking trays with indentions for receiving a number of meatballs. The cooking trays are detachably connected to supporting members and may be stacked on top of one another in superimposed fashion.

Abstract: In an apparatus and process for manufacturing a thermoplastic sheet or film having superior optical characteristics such as improved transparency, gloss and surface smoothness, a thermoplastic sheet is extruded, passed between a cast drum and an endless metallic belt while being compressed and subjected to a primary cooling by the belt and drum. The sheet or film is secondarily cooled in a water bath, after which it is dewatered and subjected to a thermal treatment at a temperature in the range of 40.degree. C. below, to 15.degree. C. above the thermal deformation temperature of the resin sheet to produce the improved sheet of the invention. In addition to producing a film or sheet with improved characteristics, the apparatus of the invention allows production of sheets or films at a rate up to about 10 m/min.

Abstract: A withdrawal device for a plastic tubular film is manufactured in a blowing method by an extruder. To prevent the formation of center wrinkles in the withdrawal of plastic tubular film, at least one deflection cylinder and/or angle bar has a differing diameter across its length.

Abstract: A system is disclosed for molding parts. The system comprises a plasticator and press. The plasticator is capable of receiving a plurality of molding materials comprising a predetermined amount of a polyester, at least one other carbocylic and reinforcing fiber, such as glass fiber. The plasticator is characterized in that it is capable of simultaneously receiving contaminated molding materials and relatively long glass fibers and molding them into a billet wherein the fibers remain substantially undamaged. The billet is subsequently in a compression molding press where other materials may be molded or applied to its surface. The system is further characterized in that a single thermal rise is used to plasticate the molding materials.

Abstract: Apparatus and method for manufacturing a resin structure reinforced with long fibers by impregnating a continuous fiber bundle with a molten resin, shaping the resin-impregnated continuous fiber bundle so as to have a cross section of an intended final product; and then taking up the resin-impregnated and shaped continuous fiber bundle shaped with upper and lower endless belts or rolls. A comb-shaped structure is positioned at a location on an upstream side of the endless belts or rolls so as to hold the resin-impregnated continuous fiber bundle between two adjacent teeth thereof. The comb-shaped structure is oscillated in a widthwise direction of the endless belts or rolls with the resin-impregnated continuous fiber bundle held between the two adjacent teeth thereof so as to responsively oscillate the resin-impregnated continuous fiber bundle in the widthwise direction of the endless belts or rolls.

Abstract: This invention relates to a process and apparatus for forming a polyester polymer into particles. More particularly, this invention relates to a process and apparatus for forming crystalline, uniform pellets from an amorphous polyester melt. The polyester pellets have utility, for example, as feedstock for a process for producing higher molecular weight polyesters.

Abstract: In the extrusion of thermoplastic deformable plastics, especially the manufacture of plastic plates, an automatic regulation apparatus on the roller discharge ensures that the extruded plastic plate is directed horizontally along the device center after leaving the roller calender. The apparatus contains a sensor unit which transmits a position signal for the horizontal position of the plastic plate to a controller which, when a deviation of the plastic plate center from the device center occurs, activates two pneumatic plug cylinders such that the plug force of the haul-off rolls changes the roller diameter and thereby guide the conveyed direction of the plastic plate.

Abstract: An apparatus for preparing an article of ice confectionery has two tube assemblies which each have a mobile portion positioned coaxially one to the other. Each mobile portion has a distribution channel which extends to a nozzle delivery end configured in a fishtail shape for depositing material, the mobile portions being positioned and configured so that at least a portion of the distribution channels are separated for thermally isolating the channels and so that upon axial rotation of the mobile portions, material deposited from one nozzle is integrated with material deposited from the other nozzle. The mobile portions may be driven for rotation separately, or one mobile portion may be driven and connected with the other mobile portion for driving the rotation of the other mobile portion.

Abstract: Instant fresh corn dough or masa may be prepared in short processing times, with low energy consumption and without liquid wastes by extruding a mixture of corn flour, lime and water in an extrusion or kneading chamber until a homogeneous dough is obtained, heating the homogeneous dough to cooking temperature while kneading is continued, expelling the cooked dough through a die from the extrusion chamber to a holding chamber, cooling the dough in said holding chamber and discharging the cooked and cooled dough through a discharge orifice, whereby the total processing time may be reduced to between 1.5 to a maximum of 7 minutes for the preparation of a fully nixtamalized corn dough or masa.

Abstract: There is disclosed an apparatus for spinning of polyurethane elastic filaments, which includes an improved means for application of a finishing agent and/or an improved means for false twisting. Each of the improved means has a groove through which a polyurethane elastic filament is allowed to pass, at which time a finishing agent is applied to the passing filament before its contact with any solid face of the apparatus.

Abstract: A dough extruder extrudes a sheet of dough. A ram is reciprocable within a chamber, the chamber having an entrance for receiving dough from the hopper and an exit. Reciprocation of the ram drives the dough from the entrance out the exit to form a sheet of dough. A driver is coupled to the ram for driving reciprocation of the ram. A sensor senses a characteristic of the sheet of dough and generates a sensing signal based on the characteristic sensed. A controller is coupled to the sensor and the driver and receives the sensor signal. The controller controls the driver based on the sensor signal received.

Abstract: Process for producing a thermobonding product by extruding a thermofusible mass (1) and scraping it in molten state onto an incised cylinder (2) regulated as to temperature between about 120.degree. C. and 250.degree. C., calendaring the mass (1) with this cylinder (2) and an elastomeric silicone cylinder (3), while transferring it onto the elastomeric cylinder (3), which simultaneously effects a consolidation of the product (1) by cooling. The product is then transferred either onto a conveyor band (4) and brought by the conveyor, after passage through thermal treatment zones (5), to a roll winding-up station (6), or directly, in the form of continuous or discontinuous structure, onto a final utilization or transfer support (17). The invention is particularly applicable in the field of the textile industry, particularly for bonding or reinforcing.

Abstract: A flattening and removing device for a plastic tubular film web produced by a stationary film blowing head in a blowing process has two deflecting rollers and two turning bars. The first deflecting roller and the squeezing roller are mounted parallel to each other between mounting plates that are rigidly connected to a turntable mounted in turning fashion in the frame floor. The second deflecting roller is connected by a support frame to a retainer having ends which are connected to gearwheels in eccentric fashion. The turning bars are each connected by support frames to gearwheels, and the center lines of all the gearwheels are aligned with each other and with an imaginary swivel axis. Thus, the diameter of the turning bars can be increased to the desired degree without impeding the passage of the flattened tubular film when the device is installed.

Abstract: A foil or film of plastic or rubber is extruded and placed upon a cooled drum for the cooling of the film or foil with the aid of an air sheet derived from a nozzle section which extends above the drum transverse to the direction of displacement of the foil or film. The nozzle has flow deflectors which are responsible from the walls to vary the deflectors. The flow deflectors are convex toward one another and have air foil configurations while being designed to deflect respective streams outwardly along the edges of the foil to resist curvature.

Abstract: The present invention has several aspects: an extrusion apparatus, a method of making a curved extrusion, and a curved extrusion made by the method. In broadest terms, the apparatus of the present invention comprises: (1) an extruding means, typically an extruder, adapted to produce an extrudate having a cross-section; (2) a plurality of guide members arranged so as to form a curvilinear path through which the extrusion is passed, each of the guide members having an aperture having substantially the same shape as the cross-section of the extrusion, whereby the plurality of guide members are adapted to form the extrusion into a curved shape while maintaining the cross-section of the extrusion; and (3) mechanical means adapted to conduct the extrusion through said plurality of guide members, such as an extrusion puller.

Abstract: A method of manufacturing a rubber mixture includes the step of mixing at a first temperature in a batchwise operation a base mixture of rubber and non-reactive additives in a ram mixer. In a subsequent step the base mixture is removed from the ram mixer and formed to a strand. The strand is cooled to a temperature at which the strand is still warm. The warm strand is then fed to a ramless mixer and reactive additives are added. In a batchwise operation the base mixture and the reactive additives are mixed at a second temperature that is lower than the first temperature in order to form a finished rubber mixture. Preferably, cooling and feeding of the strand are performed simultaneously.

Abstract: A method and apparatus for producing an elongated beam from compressible material. A mixture of filling material and plastic material is delivered to a first space and there compressed. The compressed material is pressed through a nozzle into a second space defined by a matrix of wall parts, where the material is made more rigid. The wall parts of the matrix can be moved backwards and forwards in a particular sequence to enable beam parts to be fed continuously through the matrix.

Abstract: A method of forming an elongated trim strip product by extruding a first strip of thermoplastic material from a die having an outlet with an area at least substantially as great as the desired cross-sectional area of the strip product in planes perpendicular to the direction of extrusion. Immediately subsequent to the step of extruding and while the extruded strip is still in a plastic state, it is passed longitudinally between cooperating forming rolls to shape the cross section of the extruded strip to the desired shape and cross section of the strip product. While the extruded strip is passing between the cooperating forming rolls, a backing strip of foil or thin metal is directed between the rolls in alignment with the extruded strip to bond the backing strip to the extruded strip.

Abstract: A dough strip extruder, such as a lasagna noodle extruder, for extruding one or more ripple edge strips is oriented to extrude the strips horizontally. The extruded strips are supported as they leave the extruder to maintain the strips in the horizontal plane of the extrusion passageway for a distance sufficient to allow complete formation of the undulations on the edges. The support may be by a roller, cylindrical rod, or horizontal plate.

Abstract: A method utilizes a hot inert gas flow in an elongated upright heated tube (A) driving off the solvent carrying polymer forming filaments by arranging spinnerettes (B) each forming a bundle of filaments positioned at an upper end of the elongated upright heated tube and providing a horizontal cross-section in the tube corresponding to the spinneret plate (C) and providing an inlet (D) for distributing the hot inert gas flow about the spinnerettes into the tube and delivering the filaments through a slot (E) at the bottom of the tube (A) for winding as upon a beamer or cop winder (F).

Abstract: Apparatus for the apportioned release or metered dosing of flowable substances, including a distributor having a movable endless sleeve with a plurality of continuous openings for the passage of the substances, with the distributor having a distribution channel that is fed with these substances and has an inlet with a plurality of bores connected with an outwardly open recess that extends transversely to the direction of movement of the sleeve with the substances being deposited in portions or doses, via the recess, downwardly through openings in the sleeve, upon means for transporting, wherein within and along the distribution channel, a distribution conduit is arranged which includes an exit remote from the recess, with a flow of the substances occurring through the exit transversely to the distribution conduit.

Abstract: The invention concerns apparatus for molding tube (20) utilizing a travelling mold tunnel. The tunnel is made up of mold blocks (16) each comprising parts (13, 15) which are hinged together to be closeable to form the tunnel and openable to release tube from the tunnel. The opened mold blocks (16) from the downstream end of the tunnel are opened and returned to the upstream end without change in their orientation to reform the tunnel about an extrusion nozzle (18) for thermoplastic extrudate.

Abstract: An apparatus for making aromatic heterocyclic polymeric fibers having enhanced compressive strength is disclosed. Individual polymeric fibers, while being made according to otherwise conventional methods, are full twisted as they are drawn from a spinnerette hole so that their internal fibrils and microfibrils become entangled. The twisting is performed before coagulation of the fibers. The entangled fibrils and microfibrils are believed to provide mutual support to adjacent fibrils/microfibrils to resist buckling under compression.

Abstract: The inventive method and apparatus suggests guiding the pasta directly into a drying climate after exiting from the die. Pasta strands of short goods are fed directly into the drying device from the extrusion die. The pasta strands can be cut either directly at the extrusion die or subsequently into packaging lengths after drying by means of an additional cutting device. It is possible to operate only the initial drying in this way, particularly to heat up the goods and then to carry out the final drying in a manner known per se, e.g. by portions. However, it is also possible to carry out the drying in its entirety, i.e. the pre-drying and final drying, according to the invention, particularly for short goods. The goods can be intensively dried at previously unaccustomed temperatures of 90.degree. C. to 120.degree. C., particularly during final drying from 15% to less than 13% product moisture.

Abstract: There is disclosed an apparatus for spinning of polyurethane elastic filaments, which includes an improved means for application of a finishing agent and/or an improved means for false twisting. Each of the improved means has a groove through which a polyurethane elastic filament is allowed to pass, at which time a finishing agent is applied to the passing filament before its contact with any solid face of the apparatus.

Abstract: A device to mix and extrude various ingredients including pastas, pastries, baked goods, hors d'oeuvres, and cookies. The device includes novel measuring, mixing and extrusion assembly including: an automatic measuring cup; a subassembly to continuously mix and extrude ingredients without intervening cleanings; mixing and extrusion feed subassembly for handling different consistencies of ingredients; an integrated automatic cutter; motor cooling and extruded ingredient drying device; and various safety devices.

Abstract: The present invention relates to an apparatus and method for extruding a Bingham plastic-type material through a die having an auger rotationally mounted therein.

Abstract: An apparatus for forming pellets in which a medium to be pelletized is delivered to a distribution box, the distribution box intermittently expelling discrete portions of the medium outwardly to form droplets. A conveyor moves the droplets away from the distribution box, the droplets solidifying into pellets as they travel along the conveyor.

Abstract: A large-diameter plastic pipe is made by extruding from an extruding-nozzle assembly a hollow thermoplastic strip having an outer rectangular cross section and formed with longitudinally extending outer walls and webs having inner surfaces and defining a plurality of longitudinally extending internal cells separated by the webs from one another. Substantially only the inner surfaces of the outer walls and the cell-forming webs are then cooled to size the strip and provide it with a predetermined compressive strength stable up to a predetermined critical pressure of the design strength while externally shielding external surfaces of the strip and thereby preventing cooling of same.

Abstract: Apparatus for the continuous extrusion of composite solid articles from a substantially uniform mixture of particulate binder material and particulate primary material in which the feed mixture is forced through an extrusion die of substantially uniform cross-section and subject to heat, pressure and cooling which consolidates the feed mixture whereby it emerges from the die as a solid composite article and in which the pressure in the extrusion die is supplied by back-pressuring external of the die.

Abstract: A food depositing apparatus for depositing hash brown potato strands includes a plurality of depositing assemblies. Each of the depositing assemblies includes a plurality of outlets. A pump member coupled to the inlets of the depositing assemblies provides pressure to force a potato slurry through the outlets of the depositing assemblies. A plurality of rotary valve components are positioned adjacent the outlets of the depositing assemblies. Each rotary valve component includes a plurality of wiper blades which correspond to the outlets. Each wiper blade has a first state that permits the potato slurry to be forced through the corresponding outlets and a second state that stops the flow of potato slurry to create a hash brown potato strand. A conveyor positioned beneath the outlets carries the formed hash brown potato strands to a drier. The drier dehydrates the formed hash brown potato strands.

Abstract: The present invention relates to a method and apparatus for forming an extruded plastic lumbar product from a commingled plastic waste feed stock. The apparatus generally includes an extruder portion and a forming portion. The extruder portion includes a compound extruder which compresses and melts the waste product by a sudden transition within a constant pitch conveyor. From the compound extruder, the melt is introduced into a hot melt extruder which is formed so as to prevent vortex of the melt or mixing of the different resins. The hot melt conveyor includes a diminishing pitch along its length and a short transition section and metering section. The hot melt is then formed into a desired profile through a cross-head die in which a series of rovings are introduced into the melt. The rovings serve as a reinforcement for the extruded product as well as define the extruded profile feed rate.

Abstract: In a method of feeding a plastic material to a using apparatus such as a molding press or an extruder, a moldable or extrudable plastic material in elongated strand form is provided. The moldable or extrudable plastic material is arranged such as in a package comprising a plurality of convolutions. The package is supported adjacent to the using apparatus and successive increments of length of the elongated strand material are payed out and fed into the using apparatus.

Abstract: An apparatus (10) is disclosed for simultaneously forming two dough sheets from a single cooker extruder (12), with the dough sheets each being formed by a plurality of dough ropes which are guided by guide posts (44) at equally spaced intervals on a conveyor (16) for passing between the pressing rollers (42) of a sheeting device (18). Specifically, the die (24) attached to the die head (20) of the cooker extruder (12) includes a roof-shaped extension formed by first and second die plates (26) interconnected by their front edges at an obtuse angle. Top and bottom pates (28) are interconnected to the top and bottom edges of the die plates (26). The back edges of the die plates (26) and of the top and bottom plates (28) are interconnected to an annular connection plate (30) which is attached to the die head (20) by bolts (34) passing through counterbored bores (32) in the connection plate (30) and threaded into the die head (20).

Abstract: A die assembly (10) for controlling extrudate profile dimension. The die assembly includes a die block (12) having a feed passage (16) for movably supporting a diverter member (13) within the die block, and first and second die block passages (18, 20). The diverter member (13) includes a diverter passage (32) and first and second feed openings (34, 36) interconnected by the diverter passage. One of the first or second feed openings (34, 36) has a larger diameter than the other of the first or second feed openings. The diverter member (13) is movable with respect to the die block (12) for directing extrudate flow via the diverter passage (32) through the second die block passage (20), to thereby vary the profile dimension of the extrudate exiting the die block. The die block (12) additionally includes a disposal passage (22).

Abstract: A process and apparatus for controlling the thickness of film made in a blown film machine having a rotating die, wherein a variable speed motor is used to control the haul-off speed of the film from the machine, by subdividing the die rotation into angular segments, measuring the blown film thickness at a point fixed in space and across each of the angular segments, and calculating an average film thickness for an angular segment, and comparing the measured thickness against a preselected desired thickness, and increasing or decreasing the speed of the variable speed motor to change the haul-off speed to bring the measured thickness into agreement with the preselected thickness.

Abstract: A method and apparatus for the continuous extrusion of composite solid articles from feed mixtures comprising a substantially uniform mixture of particulate binder material and particulate primary material in which the feed mixture is forced through an extrusion die of substantially uniform cross-section and subject to heat, pressure and cooling which consolidates the feed mixture whereby it emerges from the die as a solid composite article and in which the pressure in the extrusion die is supplied by back-pressuring means external of the die. Solid filter elements of activated carbon particles for a wide variety of filtering applications may be formed using the process and apparatus.

Abstract: A method of manufacturing a reinforced component of a motor vehicle tire carcass, in particular a body ply (2) and/or tread ply (3), whereby an elongated reinforcing element (5) is fed onto a substrate (7) along a generally sinusoidal path to form a reinforcing layer (29) defined by a succession of straight, substantially parallel portions (27) of the elongated reinforcing element (5) joined successively by curved end portions (28) thereof; the reinforcing layer (29) being moved substantially transversely in relation to the straight portions (27) to cooperate with an extrusion unit (34) which covers at least one surface of the reinforcing layer (29) with a covering layer (27,38)(37a,38a) of uncured elastomeric material.

Abstract: A calibrating unit for an extruder includes an inner calibrating member, and a plurality of outer calibrating members at least partially surrounding the inner calibrating member and forming a gap therebetween through which a plastic material may be extruded, the plurality of outer calibrating members including a base member and at least a first lateral member. The calibrating unit also includes an integrated joint connecting the first lateral member to the base member. The first integrated joint includes a circular cylindrical hinge pin integrally formed along a longitudinal edge of the first lateral member, and a cylindrical circular bearing shell formed in the base member. The circular cylindrical hinge pin is received within the circular cylindrical bearing shell of the base member so that the first lateral member is rotatably interconnected to the base member.

Abstract: Multiple extruder apparatus for compounding thermoplastic resin and reinforcing fibers incorporates a resin extruder in which thermoplastic resin pellets are melted and a compounding extruder in which the molten thermoplastic resin is mixed in intimate contact with long reinforcing fibers of at least one inch in length. The melted thermoplastic resin is introduced into the compounding extruder at a point downstream of the inlet point for the reinforcing fibers, so that the fibers are mechanically worked and heated before coming into contact with heated, molten thermoplastic resin.The extrudate from the compounding extruder consists of a homogeneous, molten mass of thermoplastic resin having discrete lengths of fibers randomly dispersed therein.

Abstract: Apparatus for handling large diameter horizontally extruded plastic tubing includes a number of driven endless belts positioned around the path of travel of the extrusion to transport the extrusion while it cools. The belts are individually driven either by hydraulic or electric motors, the speed of travel of each belt is continuously monitored and a feedback system including a microprocessor controls the driving motors so as to maintain the speed of travel of the extrusion at an adjustable controlled value. The belt positions are hydraulically controlled to accommodate tubing of a range of sizes and the level of the hydraulic fluid in its reservoir, its pressure and its temperature are also monitored by the microprocessor. In the event of component fault or failure, the microprocessor returns the affected belt or belts to manual control so that the product line need not be shut down.

Abstract: A reconfigurable fiber-forming resin transfer molding system including a sealed chamber with first and second spaced flexible diaphragms for holding a fiber workpiece and press and die mold surfaces for forming the fiber workpiece.

Abstract: An extruded, smooth finished solid sheet or film of thickness <1 mm is prepared from a thermoplastic plastic having a glass transition temperature >50.degree. C., by extruding the plastic in the thermoplastic state through a slot nozzle to form a flat extruded strip, which is introduced into the roll gap of a roll stack having a smoothed upper roll and a lower roll, with the upper roll being maintained at a temperature below the glass transition temperature of the thermoplastic plastic and with the lower roll being maintained at a temperature in the plastic state domain of the thermoplastic plastic, and, after exiting the roll gap, the extruded strip is moved resting on a smooth-finished endless belt which passes around the lower roll, thereby smoothing the surface of the strip; and cooling said extruded strip below the glass transition temperature.

Abstract: A process for preparing a substrate sheet for optical recording mediums includes the steps of extruding a molten resin to form a resin sheet and bringing the resin sheet into pressure between a preformat roll and a roll disposed opposingly to said preformat roll to transfer a preformat pattern to the surface of the resin sheet, wherein the roll disposed opposingly to the preformat roll includes a roll whose surface is covered with an elastomeric resin.

Abstract: Plasticized polyvinyl butyral sheet optionally containing a gradient color band is formed by continuously extruding a sheet having a predetermined region across its width formed from melt issuing from a die at an increased mass flow rate in comparison with other portions of the melt forming the rest of the sheet and then forwardly distorting such sheet immediately after forming by preferentially stretching the side containing the predetermined region to form an arcuate shape of substantially uniform thickness. Arcuately shaped sections are then cut from the sheet to form discrete, shaped interlayer blanks having improved thickness uniformity and dimensional stability providing improved performance when used in laminated safety glass.

Abstract: The present invention relates to a method and apparatus for charging a high-viscous material in a material tank into a charging tank. The high-viscous material, namely, putty is used preferably as a material for correcting the dynamic unbalance of a rotary body. When the material is charged from the material tank into the charging tank through a nozzle, the pressure of air in the charging tank is reduced and the pressure of air in the material tank is increased to drop the high-viscous material in droplets without taking air thereinto and air which has permeated into the material in the material tank can be removed.