Abstract: The present invention provides methods and devices for producing a subassembly for devices designed to receive particulate matter in a compartment of predetermined shape.

Abstract: A method for the fabrication of concrete blocks (2) or concrete slabs of various forms and sizes, fabrication taking place on the basis of vibrational compaction in concrete-filled molds or dies, the block surface or slab surface of the concrete blocks or concrete slabs being subjected to at least one post-forming treatment and subsequent curing. The post-forming treatment includes gentle contact of the surfaces of the concrete blocks or concrete slabs with soft materials.

Abstract: A vacuum molding process includes selecting a flexible polymer cover for covering a selected cement container and at least partially filling the container with a cement mixture. The polymer cover is removably attached to the partially filled cement container and a vacuum is applied to the cement mixture in the container. The process may also include connecting a vibrator to the container for simultaneously vibrating the container and the placing of a hollow mold core member having a plurality of apertures therein in the middle of the container for the gas bubbles to escape as a result of the vibration of the cement mixture in a vacuum.

Abstract: A device and a method for producing concrete paving stones. These paving stones can be made from coarse grained concrete and a series of layers of colored concrete material. These layers of colored concrete material are placed in a container on top of a slider that is transversely displaceable. There is also an additional slider and a closing member disposed at the bottom of the container. The first slider, can be moved to form a passage slot between the first slider and the housing. The second slider can be moved to form a passage slot between the second slider and the housing. In addition, between the first slider and the second slider is a first deflecting curve for the colored concrete to mix around and between the second slider and the closing member is a second deflecting curve for further mixing of the colored concrete. This colored concrete is then added to the coarse grained concrete and compacted with it to create paving stones.

Abstract: Apparatus for molding blocks with laterally projecting, undercut side features includes a mold box having split mold parts defining a mold cavity open at the top and bottom. A top plate overlies the mold parts and is formed with an opening aligned with a cavity. Moldable block material is charged into the cavity from a feed box, and the material is compacted and shaped between a lower pallet and upper stripper head which are moved to close the bottom and top of the cavity during vibration of the mold. The mold parts are retractable beneath the top plate to release the block for stripping through the bottom of a mold. A plurality of fluid outlets in the top plate communicate with problem areas of the recessed mold parts which are prone to accumulate residual block material. Pressurized clean-out fluid, such as air is directed through the outlets onto such problem areas to cleanse the mold surfaces of the block material between mold cycles.

Abstract: A method for molding a block for an outdoor staircase stair includes filling a form with zero slump mix, the form having outer walls and a core member which includes a vertically disposed central recess extending into the core from its lower surface, filling the recess in the core member, agitating the filled form and recess, compressing the top of the mix in the form, passing a compression head through the form to transfer the formed mix to a pallet, and then curing the formed mix in a misting kiln.

Abstract: The present invention provides a method and apparatus for achieving ornamental dispersion of particles in a molded article thereby increasing the ornamental desirability of the article. The method for achieving ornamental dispersion of small planar particles in a resin molded articles comprises the steps of preparing a basic plate with any patterns engraved therein, pouring moldable fluid resin mixed with small planer particles into the patterns engraved in the plate, shaking the plate in circular vibration, hardening the resin and grinding the surface of the plate. When the patterns are is filled with a fluid resin material to which planar particles have been added, the action of the apparatus serves to ornamentally disperse the particles within the fluid resin while maintaining a pearl-like dispersion of each particle until the resin has set.

Abstract: A method and apparatus for preparing single layer tiles or slabs from a mixture of a granulated stone material having a selected particle size, and from a slurry formed by cement, a quantity of between 0.25 and 0.36 parts by weight of water relative to the weight of cement, and a plasticizer for cementitious slurries, in which the quantity of slurry added is slightly in excess of the quantity corresponding to the void fraction of the granulated material, in forming mould, containing a layer of predetermined thickness of the mixture, to be subjected to a first very short deaeration step under the effect of a very high vacuum and to a subsequent vibration step under a lower vacuum, after which the mould goes on to seeing and hardness steps.

Abstract: A method and apparatus for producing tubular molded products from molding material includes a mold casing and a mold core having a common longitudinal central axis which is vertically disposed. The mold casing and mold core are spaced from one another to define a molding space therebetween. A supply device supplies molding material from above the molding space into the molding space. Treatment apparatus is disposed at treatment zones on the mold core for treating the molding material in the molding space, the treatment including treating the molding material by shaking the molding material or treating the molding material by heating the molding material, or both.

Abstract: A method for molding a thermoplastic resin by filling a molten thermoplastic resin into a mold which comprises carrying out the molding of the resin while reducing the solidification temperature of the resin surface which contacts with the mold during the step of filling the resin. According to this molding method, the state of the mold surface can be faithfully transferred to molded articles.

Abstract: Molten resin material is continuously extruded from a first extruding hole extending in a width direction of a first extruding nozzle, and is passed through a second extruding nozzle which is arranged a front surface of the first extruding nozzle and has a second extruding hole at a position corresponding to the first extruding hole. The second extruding hole is a single extruding hole having a plurality of longitudinal rectangular openings arranged at the same pitch in the width direction, and a communicating section with which one end of the respective rectangular openings communicate, and the first extruding hole is a single extruding hole having coupling-element-molding openings arranged corresponding to the rectangular openings and a base-member-molding opening corresponding to the communicating section.

Abstract: A concrete product molding machine supports a vibratable mold having an open top and an open bottom. A stripper head is movable from a position above the mold to an intermediate position ready to strip the molded product from the mold and then on to a lower position in which it has. A pallet receiver is movable from a lower position to a mold closing position in which a pallet it carries closes the bottom of the mold. Disengageable linking mechanism is provided for coupling the striper head and pallet receiver frame for conjoint travel in movement of the stripper head through the mold. A connector assembly connects with a pallet receiver lift arm and incorporates an actuator for varying the position of the upper end of the lift arm and thereby varying the vertical position of the pallet receiver.

Abstract: A method and system for de-molding golf balls having a casted layer is disclosed herein. The invention includes exerting a first lateral force against a top mold half of a mold assembly and exerting a second lateral force against a bottom mold half of the mold assembly to separate the mold assembly and de-mold the golf balls from the top mold half. Preferably, the mold assembly is used to form a thermoset polyurethane cover over a core and boundary layer. The bottom mold half may have a double tapered pin, or a retractable pin with a single taper. The method and system allow for hot de-molding of golf balls from the mold assembly.

Abstract: A method of producing three dimensional ordered arrays of particles. The method may be used for the preparation of nanocomposite materials with highly periodic structures. More particularly the invention provides a method of producing three dimensional arrays based on applying a controlled oscillatory motion to settling dispersions of colloid particles. The controlled oscillatory motion is characterized by G=A&ohgr;2/g, wherein g is the gravitational constant, A is the displacement and &ohgr; is angular frequency. G is maintained in the desired range by varying values of A within an effective range of displacements and &ugr; within an effective range of frequencies.

Abstract: A method of preparing stackable block structures from raw concrete mixes and block structures prepared in accordance with the method, wherein the process utilizes a mold box configured to form the block on its side surface. The mold box is arranged to travel along the surface of a moving conveyor belt, with the box having an open top, an open bottom, and lateral side panels supported on the conveyor belt surface, and with the panels having core bar receiving openings formed therein. The core bars are introduced and removed from the mold box along an axis which is parallel to the surface of the core bars and to the motion axis of the conveyor belt, and with the core bars configuring one of the two opposed side surfaces of the stackable block. A reciprocating top shoe arranged for reciprocatory up and down motion engages and configures the top surface of the raw concrete mix held within the walls of the mold box.

Abstract: A method for molding a thermoplastic resin by filling a molten thermoplastic resin into a mold which comprises carrying out the molding of the resin while reducing the solidification temperature of the resin surface which contacts with the mold during the step of filling the resin. According to this molding method, the state of the mold surface can be faithfully transferred to molded articles.

Abstract: A system for making extruded cement-based articles. The process can include forming a cement-based feed mixture including water, aggregate and binder and directing the feed mixture to a vacuum zone, wherein sufficient vacuum is maintained in the vacuum zone to remove entrained air and, preferably, excess water, from the feed mixture. The feed mixture is held in the vacuum zone at a negative pressure for a time sufficient to form a vacuum-treated or densified mixture. The vacuum-treated or densified mixture is passed through an extruder at an elevated pressure to provide an extruded cement-based article.

Abstract: The present invention is directed to derivatized polycarboxylate dispersants for cementitious mixtures, including those mixtures with high percentages of pozzolan cement replacement and dry cast applications. In particular, the invention is directed to a cementitious mixture comprising cement, including cements with high percentages of pozzolan cement replacement, water, coarse aggregate, fine aggregate, and including a dispersant, wherein said dispersant is a derivatized polycarboxylate dispersant, or combination of polycarboxylate dispersants, which is a derivatized polymer comprising a backbone having moieties derived from (a) an unsaturated hydrocarbon; (b) at least one of a substituted carboxylic acid monomer, a substituted ethylenically unsaturated monomer, and maleic anhydride; and (c) optionally including an N-polyoxyalkylene succinimide; and wherein derivative moieties are pendant to the backbone monomer by at least one ester linkage and at least one amide linkage.

Abstract: A process for forming molded articles from particulate thermoplastic material, the process comprising:

Abstract: A method of molding composite articles including arranging a pair of matched-tool mold sections in an opposed relationship, each mold section having a rigid housing and a thin, semi-rigid membrane removably and sealably mounted on the housing so as to define a fluid-tight chamber; filling the fluid-tight chambers with a non-compressible backing fluid; and accommodating thermal expansion of the backing fluid by an expansion chamber in fluid communication with the fluid tight chambers. The method further includes defining a mold plenum between the semi-rigid membranes when the mold sections are closed together; inserting reinforcement materials between the semi-rigid membranes prior to closing the mold sections; and injecting and curing a molding fluid after closing the mold sections.

Abstract: The invention relates to a process for preparing free flowing particles covered with a layer of water glass, comprising the steps of: (a) providing a mixture containing particles to be covered, water and 0.1-5% by weight water glass, calculated on the basis of the weight of the particles, the water glass being dissolved in said mixture, and (b) stirring the mixture mechanically, optionally by supplying heat from an external heat source, and permitting the water to evaporate from the mixture until at least so much water is evaporated that said mixture is no longer sticky. Furthermore, the invention relates to a process for preparing an article with a detailed surface.

Abstract: A method for forming a concrete masonry block having external plates. The external plates with anchors are indexed on pallets that are fed into concrete casting machines by proper location of the plates. Concrete mixture is deposited inside of a mold and compressed into the mold with anchors being located in the concrete material and having at least one external plate. Thereafter, the concrete masonry block with the external plate is removed from the mold and cured.

Abstract: A method for forming shaped fibrous articles. The method involves introducing at least a portion of a fibrous element into a shaping tool and subjecting the fibrous element in the shaping tool to ultrasonic energy. This imparts the shape of the shaping tool to the surface of the fibrous element. The apparatus has a guide-holder to receive and removably retain a fibrous element and an ultrasonic shaping tool which can be applied to the fibrous element. The shaping tool has a recess corresponding to a predetermined shape for the article. Preferably, the shaping tool and guide-holder are reciprocally moveable with respect to one another.

Abstract: The present invention relates to a cementitious structural panel and its method of manufacture. The method of manufacture involves encapsulating a top and bottom layer of porous reinforcing material with a cementitious mixture by vibration. The structural panel may be coated with a layer of waterproof material.

Abstract: A method for making thermotropic liquid crystalline polymer films with improved transverse direction properties comprises two preferably embossed rollers which oscillate oppositely with respect to each along their respective rotational axes. Film made by passing a liquid crystalline polymer between such rolls has improved transverse direction properties. Such films are useful in multilayer containers and for circuit boards.

Abstract: A device for receiving formwork elements used to manufacture concrete elements has a bearing static structure and a flat formwork joined therewith which can be driven to vibrate by an exciting device in order to compact the still-plastic concrete. The sound-insulating joining devices are inserted between the formwork shell and the static structure. The exciting device bypasses the joining device and acts directly or indirectly on the formwork shell.

Abstract: A method and apparatus for the manufacture of a composite component by locating a composite lay-up between a mould surface and a backing surface, each surface forming a wall of a respective pressure chamber. Securing the chambers together to retain the lay-up therebetween with at least one of the said walls movable relative to the other, under the influence of pressure in the chamber incorporating the movable wall, to sandwich the composite therebetween. Then circulating fluid under pressure through each of the chambers at substantially the same pressure to compress the composite lay-up between said mould and backup surfaces to compact the composite lay-up. While the fluid is circulating elevating the temperature thereof to effect curing of the composite. One of the walls between which the composite lay-up is located is of a flexible or semi-rigid construction and the opposing surface of the other wall is shaped to impart to the composite the required surface contour in the product.

Abstract: In a method for compacting a granular, loosely coherent mass, such as moist mortar, to obtain end products such as paving stones, kerbstones and the like, an installation is used which includes a vibrating table, a mold for the mass to be compacted, a stamp for pressing the mass into the mold, a hydraulic exciter and a hydraulic pressure element respectively connected to the vibrating table and the stamp, and a driver and a controller for controlling the exciter and pressure elements.

Abstract: An inexpensive, lightweight, strong and durable casting that has a surface appearance simulating carved stone, and is especially adapted for use as a transition between a brick or stone wall and window and door openings. Further, it provides architectural detail to building constructions, especially as a surround for window and door openings. The casting is produced from a mixture of graded aggregates and a resin binder, combined in predetermined proportions to make a soupy mixture that is cast in a mold. The mold is vibrated to cause migration of air bubbles away from the surface of the molded product, and to cause realignment and orientation of the aggregate materials in a way to enhance the structure and surface density of the product. After the casting has set, it is removed from the mold and cured and the surface is sandblasted to erode away some of the resin binder and portions of the aggregate at the surface to produce an appearance that is an accurate simulation of carved stone.

Abstract: A method for manufacturing preforms used in molding optical elements includes: (1) forming an array made from a material for optical elements, in which a plurality of preform portions used in molding optical elements are connected; (2) applying vibration to the outer peripheral part of the preform portion in the thickness direction of the array by a pair of punches; and then (3) punching the preform portions.

Abstract: A method of forming a refractory die, and a method for forming a metal article using a refractory die. The refractory die is formed of a ceramic material by casting a slurry containing particles of the ceramic material onto a mold. Then the mold is vibrated while excess liquid medium from the slurry is simultaneously removed, whereby ceramic particles continue to flow into surface details of the mold. The present method of forming a refractory die minimizes drying and firing shrinkage, and even adjusts for drying and firing shrinkage by inclusion of kyanite in the refractory die. According to the method of forming a metal article, a particulate material containing powdered metal is compressed on a refractory die at an elevated temperature and pressure. The consolidated particulate material is differentially cooled, wherein a first, low mass portion contacting the refractory die is cooled more quickly than an opposing, high mass portion of the consolidated body.

Abstract: A method for making a container for an electrowinning cell where the first step 10 provides a mold plug 11 and woven glass rovings 12 are applied in the second step shown at 13. Vinylester resin is applied to the glass rovings at 14 to a thickness of about 4 mm. The liner shown at 14 is 97% vinylester resin. The liner is then allowed partially to harden. The liner 15 is then completely removed from the mold plug and then placed on a slightly smaller support 16 which forms the inner portion of a mold having its walls built up around the support 16 with the liner 15 in place as shown at 17. The mold is supported on springs and a vibrator 18 is employed to vibrate the mold as the outer supporting layer is being poured. Four separate pours 19, 20, 21 and 22 are employed. Each pour has progressively less resin. Pour 19 comprises 12% resin, 0.5% glass, 30% fine and coarse river sand and 57.5% gravel mix. Pour 20 comprises 11% resin. 0.5% glass, 30% fine and coarse river sand and 58.5% gravel mix.

Abstract: A method for manufacturing of slabs of granulated stone material and/or sands bound with a resin which can be hardened, and preferably hot with the aid of a catalyst. The mixture of granulated material and/or sand and resin is deposited as a layer of uniform thickness and a predetermined outline onto a support protected by a first sheet of material, and the upper surface of the layer and its sides between the lower surface and its upper surface, is also protected with a similar second sheet of material. Then, the protected layer is subjected to vibratory compaction under vacuum and to a hot hardening process in the presence of the catalyst. The two protective sheets are made of resilient material, particularly of natural or synthetic rubber, such as neoprene, and after hardening of the sheets, the sheets are removed, by pulling them from the covered and protected surfaces of the resulting slab.

Abstract: A method for forming a test specimen from an asphalt concrete mixture includes providing a mold to receive a quantity of the mixture and adding a predetermined quantity of the mixture to the mold. The mixture in the mold is compressed at a pressure of at least about 7 psi while vibrating the mixture in the mold at a rate of at least about 2400 cycles per minute. The method also includes maintaining the vibration of and the application of compressing pressure to the mixture in the mold until the mixture obtains a predetermined mix design density within a range of about 90-97%.

Abstract: A method of making an article from a lightweight cementitious composition includes molding a castable cementitious mixture including an aqueous slurry of at least perlite and concrete into an article, such as a hollow, decorative article. The castable cementitious mixture can include a fibrous material, for reinforcing the cement and perlite, and an air entraining agent, for facilitating mixability and reducing a density of the cementitious mixture and facilitating casting. The mold can include an external mold form that contains the cementitious mixture and an internal mold form that displaces the cementitious mixture within the external mold form to cast the hollow article in various shapes and with various surface textures. The external and internal mold forms include liners made of a lightweight flexible material that can be removed, unfolded, and prepared and/or cleaned.

Abstract: A method of making a cast concrete stepping stone whose exposed upper surface has the appearance of two or more grouted attractive natural stepping stones. A liquid release agent is applied to the mold which is then placed on a vibrator table and filled with wet concrete. The mold is vibrated for about 30 seconds and the surface of the concrete troweled smooth. Dry body color is sprinkled over the concrete surface and troweled to completely cover the concrete. A dry release agent containing powdered color having a darker shade than the body color is sprinkled over the dry body color covering the concrete. The desired pattern is then pressed into the surface of the concrete and after a six hour drying time, the cast stepping stone is removed from the mold. Excess body color and release agent are washed away and the washed surfaces totally dried. Finally a clear concrete sealer is applied to the exposed upper surface of the concrete stepping stone.

Abstract: An apparatus for making a lightweight, thin wall, seamless, hollow structural profile using a simple mold. The apparatus includes a base for supporting a mandril and a two piece outer form which bolts together assembled. A mixture is poured or injected into the space between the mandril and the form to produce a profile upon hardening of the mixture of either cement, fiberglass or polymers. The hollow area of the structural profile may be filled with various materials. The base comprises a plurality of upwardly rising columns or blocks and posts around the inside perimeter of the mandril and blocks around the outside perimeter of the form for proper positioning of the mandril and the form, which are separated by a predetermined distance in accordance with the desired features and dimensions of the structural profile.

Abstract: A woody group material and cement are combined to form a construction material. The material has an aggregate of finely split pieces formed by splitting wood, bamboo or the like in a fiber direction. The split pieces are formed in one or more layers and are surrounded by, and buried in, a mortar. A construction material can be provided which is fire resistant and has a strength comparable to a lumbered product such as wood material obtained by cutting raw wood. The finely split pieces of wood, bamboo or the like are very strong and tough because they closely adhere to the mortar. Moreover, it is possible to use a fiber structure of raw material. Since the finely split pieces can use a small diameter wood, lumbering byproducts, and other waste material, it is possible to achieve effective use of forest resources and low manufacturing costs.

Abstract: A method for making a building product from products of firing a clay-containing material and products of processing a lime-releasing material. The method comprises firing at least a clay-containing material up to at least beginning of its sinter, obtaining a molding mix comprising lime and products of firing a clay-containing material, molding a body of building product from the mix, and treating the body in a humid medium or in a medium containing water vapor. The products of firing a clay-containing material include a mixture of first and second portions that have been heated to respective first and second temperatures that are different from one another, the two different temperatures being within the temperature range from a temperature of beginning of dehydration to at least a temperature of sinter of clay, so that the products of firing comprise both products of dehydration and products of amorphization of clay.

Abstract: Polymer composite products, including products made of polymer concrete, reinforced polymer concrete and reinforced plastics, such as bulk molding compound, sheet molding compound, mineral molding compound and advanced molding compound systems, are produced by the simultaneous application of vibration, heat and pressure to a mixture of filler and polymeric binder. The simultaneous application of vibration, heat and pressure provides a protective layer of polymerized binder that protects the surfaces of the mold and provides products that are substantially free of curling, cracking or voids. The process of the present invention substantially reduces the time required to cure polymer composite products.

Abstract: A process is for producing machine components from highly corrosion and water-resistant cast mineral, especially for the production of monolithically cast pump housings or parts in which the binder is first mixed with the filler in a positive mixer and the finished mixture is poured into a mould and hardened. In order to obtain a dense and non-porous casting which needs no further machining, a heat-curing synthetic resin-curing agent system is used as the binder. The binder and filler are mixed in a heatable, evacuated positive mixer at a temperature of over 20.degree. C. and a pressure of under 80 mbar. The casting take place in a preheated mould as a rising casting. The cast mineral in the mould is first cured at a temperature of over 60.degree. C. and the cured casting is removed from the mould, cleaned, measured and if necessary post machined. Finally the casting is cured in an annealing furnace at over 120.degree. C.

Abstract: A novel process for creating aesthetically pleasing multicolor designs and patterns in cast materials, particularly cementitious materials, which may be used to imitate natural stone in appearance. The process includes the steps of preparing multiple colors of the casting material, geometrically loading these colors in a three dimensional array in a holding container according to formulas corresponding to particular patterns to be created, placing the geometrically loaded colors into a mold by means which include pouring, extruding and spraying, consolidating the mixtures in the mold and allowing them to set, and removing the cast structure from the mold followed by polishing and sealing if required. A removable matrix in the holding container provides the ability to reliably repeat patterns according to the loading formulas.

Abstract: An installation for compacting concrete mix includes a frame which has a lower plate and an upper plate between which concrete mix can be accommodated. The plates can be pressed in the direction towards one another and can be made to vibrate with respect to one another in order to compact the mix. Each plate is connected to the frame via an associated spring-mounted massive body.

Abstract: The manufacture of moldable concrete products with deferred mold release incorporates molding means bm1 into optimized rotary structures 1, 5, 7, 9, 12 in the form of modular cylinders having at least two faces, the cylinders being equipped and/or associated with means which group together the main work-stations MP, MT, B, D, NH so as to assign a rotary travel of more than 270.degree. and preferably equal to 360.degree. to the curing of the molded material with or without recourse to any means for accelerating the curing.

Abstract: A process for fabricating a seamless flush mounted countertop sink, which includes the steps of constructing a sink bowl (22) that has an outwardly extending peripheral top flange (26). The sink bowl is then captivated upside-down on a flat mold (34) and uncured filled polymer (40) is poured on the mold and flattened to a level above the flange, creating an integral countertop sink (44). The polymer is vibrated and cured. In the preferred embodiment, the top surface of the countertop is sanded smooth and, in the second embodiment, a clear gelcoat is added prior to pouring, creating a glossy finish. The third embodiment spaces the sink bowl flange within the thickness of the countertop (42) and is finished by either sanding, or a previous gelcoat is added, as above.

Abstract: An automotive interior trim part (10) is made by molding a substrate retainer layer (16), forming a skin layer (12) and forming an intermediate layer (14). The intermediate layer (14) is formed from a plurality of clusters of entangled high melt and low melt kinked fibers of polyethylene terephthalate (PET). The PET layer is blown into a partially closed mold that has the skin and retainer positioned in each mold die. The mold undergoes induced vibrations to promote tightening of the packed clusters. The mold is then fully closed to compress the PET fibers into full density. Heated air is then blown into the mold to soften the low melt fibers to adhere them to the retainer layer and skin. Cool air is then blown into the mold to resolidfy the clusters and form the intermediate layer into its molded shape.

Abstract: A material powder is packed in a cavity of a mold with high and uniform density to manufacture a powder molding a material powder in a shoe box 12 is fed into a cavity 6 formed in a mold 1 by moving the shoe box 12 over the cavity 6 while oscillating the shoe box until the density of the powder in the cavity increases to at least 1.1 times the apparent density. The powder is then compression-molded.

Abstract: An injection molding machine equipped with an assembly for vibration processing which efficiently performs processing operations on the resin in the mold with vibration overcomes the restriction of vibration frequency due to the limited response of return springs and due to vibration transfer loss from the vibratory rods to the vibratory plate when operating at a high frequency. The injection molding machine performs both vibration and ejection without an ejector plate by making the vibratory plate serve a dual purpose and thus enable reduction in both mold size and production cost.

Abstract: A vibration apparatus for a molding box which enlarges the range in which a vibrating force can be increased and decreased. In the apparatus, a first gear pulley 16 for rotating a first rotary shaft having a first eccentric weight fixed thereto and a second gear pulley 17 for rotating a second rotary shaft having a second eccentric weight fixed thereto are disposed on the same plane, and similar third and fourth rotary shafts are disposed immediately below the first and second rotary shafts, respectively. An endless timing belt 37 is passed around a prime mover gear pulley 33 and a gear pulley 36 disposed on a slidable base 31 capable of horizontal displacement in such a manner as to extend from the lower side of the first gear pulley 16 to the upper side of the second gear pulley 17 and from the upper side of the fourth gear pulley 19 to the lower side of the third gear pulley 18, and the slidable base 31 can thus move in a direction parallel to the timing-belt 37.

Abstract: An apparatus for shaping deformable materials during molding processes. Such an apparatus includes, among other things, a vibrating wall assembly. The vibrating wall assembly fits the contours of at least a portion of a mold's cavity. The vibrating wall assembly includes a pliable wall positioned within the mold. The pliable wall is positioned such that its outside wall surface is adjacent to a portion of the mold's inside wall surface; and its inside wall surface defines a portion of the geometric configuration of the material passing thereover. The pliable wall is designed to deform from its original shape when a positive or negative pressure is exerted on its inside or outside wall surface. This positive and/or negative pressure is generated, at least in part, by the displacement of a displaceable fluid. This fluid is contained within a chamber. The chamber is in communication with a portion of the pliable wall's outside wall surface.