Abstract: A vibrator device for use in a concrete block maker in which the mold box and the underlying pallet of the device reciprocate in opposite directions relative to each other, providing compaction of the concrete mix within the mold box as supported upon the pallet.

Abstract: A new system and method for making agglomerates of chopped glass fiber strand segments is disclosed as are the agglomerates produced. The agglomerates, made by feeding wet chopped fiber strand segments into a wave chamber having a vibrating curved surface that produces a wave-like flow pattern in the segments and agglomerates, have a substantially higher bulk density and greatly improved flow characteristics than conventional chopped strand reinforcements. The wet agglomerates are usually dried in any conventional dryer.

Abstract: The invention concerns a vibrating machine for vibrating and compacting of compactable materials, in particular raw concrete filled into concrete molds for concrete mold parts, preferably low water content raw concrete, wherein the vibrating machine is comprised of a machine base (1), an oscillator (6) and a vibrating table (4) which can be caused to vibrate by oscillations of the oscillator (6), upon which a concrete mold (16) for the concrete molded parts can be placed, wherein means are provided for coupling the concrete mold (16) and the vibrating table (4) to each other for reduction of noise. The means for coupling comprises a vacuum coupling (4, 13, 16), which draws the vibrating table (4) and the concrete mold (16) form locking towards each other during the vibrating process.

Abstract: A vibratory apparatus and method for agglomerating chopped bundles of wet fiberglass strands into uniform segments includes a container having a curved inner surface disposed about a generally horizontal axis where the container is mounted on a plurality of springs. The chopped bundles of wet fiberglass strands to be agglomerated are placed onto the curved inner surface at an input end of the container. A vibratory force is produced to cause the chopped bundles of wet fiberglass strands to be moved from the input end toward an output end of the container. The vibratory force causes the chopped bundles of wet fiberglass strands to be directed in a rising and falling path of rolling movement within the container. As a result of the rolling movement of the chopped bundles within the container which is produced by the vibratory force, the chopped bundles of wet fiberglass strands are converted into uniform segments by reason of agglomeration of the wet fiberglass strands.

Abstract: The invention relates to a concrete compacting device for compacting plastically deformable concrete in a formwork, comprising at least one vibrating unit which is attached to the formwork and has a vibration-generating unit. The compacting device is characterized in that the vibrating unit comprises an acceleration sensor for generating a signal corresponding to a vibration generated by the vibration-generating unit at the level of the formwork, and a control unit which is impinged upon by said signal and serves to control operating parameters of the vibration-generating unit.

Abstract: A main frames having bottom and top frame parts for concrete molding machines of the kind which are used in making slabs or blocks for covering surfaces and erecting walls are usually made by welding together cut standard steel sections of the types HEM, RHS, UNP, etc. The requirements to materials and welds at the making of bottom frames of this kind are high due to the fact that welded structures subjected to vibration only has 10-15% of the basic material strength in the welding zones. Thus, the main frame has a bottom frame part (40) formed of two flame cut bottom plates (42, 44) arranged in parallel as an upper plate (42) and a lower plate (44) and forming the basic shape of the bottom, the bottom plates (42, 44) being interconnected by at least two longitudinal plates (46, 48) and a number of transverse plates (50, 52, 54). In this way, substantial savings are achieved as the main frame can be made with fewer or no welds in the critical areas, or with welds of a lower class.

Abstract: A vibrator device for use in a concrete block maker in which the mold box and the underlying pallet of the device reciprocate in opposite directions relative to each other, providing compaction of the concrete mix within the mold box as supported upon the pallet

Abstract: A vibration drive particularly suited for a mold for producing concrete molded bodies comprises of at least one piezoelectric vibration exciter which is fixedly attached onto the mold. The vibration exciter comprises a housing in which an unbalance mass is movably supported and is drivingly connected to a piezoelement which is also located in the housing to produce vibration. When an AC voltage is applied to the vibration exciter a deformation movement occurs which is converted into an oscillating motion of the unbalance mass and which thus produces vibrations of the mold.

Abstract: A method for producing shaped bodies of particulate material by introducing an easily flowable slurry of water and particulate material into a mold with perforated walls and by applying a sufficiently high pressure to the slurry in the mold so as to express a sufficient proportion of the liquid to allow physical contact and interengagement between the particles. The method may be carried out continuously in an extrusion process including introducing the slurry under high pressure into a extruder and conveying the slurry through a shaping section of the extruder to a draining and consolidation section of the extruder with drain holes and slits whereby a non-flowable, consolidated, shaped body leaves the extruder through an exit section.

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 unit designed to vibrate concrete products includes elements designed to impart asymmetrical vibrations to a mould, the motion in one direction being much faster than the motion in the opposite direction. The unit includes a pair of motors which drive two cams on each of which rests an idle roller, connected via a linkage to a table on which the mould is positioned. The rotation of the cams causes the table to vibrate, causing it to move upwards with strong acceleration and then descend with a slower and more regular motion. This system produces a type of vibration which allows concrete to be compacted rapidly without becoming detached from or partly exiting from the mould.

Abstract: A vibrating screed for processing a floor layer, more particularly a so-called vibrating beam, of the type including a vibrating board (2), a vibrating mechanism (3) cooperating with the vibrating board, and a handle (4) whereby the vibrating mechanism comprises an eccentric (7) seated in bearings (5-6) and a motor (8) for driving the eccentric, wherein the bearings and the eccentric are fixed in a split body by means of a clamping mechanism on the split body.

Abstract: A vibration apparatus has a vibration table and pairs of vibration driving shafts and vibration driven shafts having eccentric weights for vibrating the vibration table and disposed symmetrically about a central axis of the vibration table. First and second rotation transmission mechanisms transmit rotation of a respective one of the vibration driving shafts to a respective one of the vibration driven shafts. An interlocking mechanism interconnects the first and second transmission mechanisms to one another and has a connecting rod having a first end connected to a support arm of one of the rotation transmission mechanisms and a second end connected to a support arm of the other rotation transmission mechanism. A driving mechanism drives the connecting rod of the interlocking mechanism to pivot the support arms to thereby vibrate the vibration table.

Abstract: A vibrating screed for surfacing concrete comprises a surfacing blade, a pair of handle assemblies mounted to said blade, a motor, vibration causing mechanism and a transmission connecting the motor to the vibration causing mechanism such that, when the motor is in operation it causes the transmission to rotate with the transmission being adapted to impart a vibratory motion to the blade. The transmission includes a flexible joint having an angled configuration to allow the motor to be mounted rearwardly of a leading edge of the blade. Each handle assembly comprises a main elongated tubular member and a handle mounted at a proximal end thereof. The handle includes a first tubular element mounted around the main tubular member, a second tubular element extending sideways from the first element and a third tubular element extending around the second element, with a grip member being mounted to the third element.

Abstract: A vibrating device for processing a floor layer. The device includes a vibrating board, a vibrating mechanism and a handle. The handle is attached to the vibration board with at least one clamping coupling. The clamping coupling includes at least two connecting elements, each having conical parts wherein one of the conical parts is adapted to fit within another of the conical parts. The clamping coupling further includes a tensioning device that is arranged to axially tighten the conical parts against each other.

Abstract: A vibratory screed device for levelling freshly poured concrete surfaces consists of an elongated vibrated screed beam delimited by a flat underside, a first and a second longitudinal side and a top; of a vibratory assembly for bringing the vibrated screed beam into vibration; and of a handle assembly which can be fixed in a detachable manner to the vibrated screed beam at an upward slope with respect to the flat underside. The first and the second longitudinal side are differently profiled and each has a surface suitable for vibratory levelling. The handle assembly can be fixed to the vibrated screed beam in two positions, in the one position sloping upwards obliquely at the first longitudinal side in order to make the first longitudinal side the active surface and in the second position sloping upwards obliquely at the second longitudinal side in order to make the second longitudinal side the active surface.

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: 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: A system for the molding of tubular goods, comprising at least one mold having an inner mold part and an outer mold part which together define a mold cavity and an upwardly open annular pouring gate, the system additionally comprising a plurality of vibrators and devices for lifting the vibrators from and lowering these into the mold cavity through the annular pouring gate. The positioning devices are adapted to displace the vibrators radially with respect to the annular pouring gate, and each of the positioning devices is provided with a separate controllable drive unit which is adapted to displace the vibrators individually. This results in a more flexible system for the molding of tubular goods which may be adapted to various pipe types, such as egg-shaped, four-sided, circular and other forms.

Abstract: A method for controlling the viscosity of molten polymers, such as polycarbonate, takes place prior to a molding operation such as injection molding, extrusion, thermoforming or blow molding.

Abstract: Apparatus and methods for stabilizing soils and other granular materials at the site at which they are located. The apparatus includes a platform, fixed or mobile at a contamination site, carrying a hopper for receiving contaminated material to be stabilized including additives as required, a mixer for introducing additives to the material connected to the hopper, a mechanism for transporting contaminated granular materials from an adjacent contaminated site to the mixer, at least one mold having at least one movable wall, a harmonic compactor to form a uniformly dense, solid compacted preform body, and a discharge station for handling or holding the preform. Where desired or required an air dryer, thermal curing chamber or sintering furnace may be used to dry and/or fuse the preform into a final block.

Abstract: Method and device for relaxing a sheet of dough, comprising a first conveyor belt, a second conveyor belt, a supporting device disposed between the first and second conveyor belts and a vibration generator interacting with the supporting device, in which the first conveyor belt conveys the sheet of dough at a first speed of conveyance on the supporting device, the vibration generator by way of the supporting device exerts a mechanical vibration with an essentially constant frequency on the sheet of dough, and the second conveyor belt discharges the sheet of dough at a second speed of conveyance which is essentially the same as the first speed of conveyance of the supporting device.

Abstract: A vibrating hand trowel for finishing plastic concrete. The vibratory mechanism includes piezoelectric elements which vibrate at a high frequency when a voltage is applied to them. The trowel as a whole includes a top piece including a cover plate and handle, and a bottom piece including the piezoelectric elements mounted on a rib and a flat bottom which contacts the concrete. The top and bottom piece are preferably attached by a series of screws. The vibrating trowel is pulled over the concrete creating a smooth, wet layer useful for lubrication of the area where the trowel and concrete are in contact. This layer develops because the vibrations cause water and air to rise to the top of the concrete. The invention will allow for easy finishing of plastic concrete because of its lightweight and simple design. The invention will also create a smooth finish of the hardened concrete.

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: An apparatus and method includes a mold which defines a mold cavity with an inlet through which a molten, moldable material can pass into and/or through the mold cavity. A feeder for preparing the molten, moldable material, is spaced from the mold and expels the material to the mold cavity or to an accumulator connected to the mold cavity. A mechanism for controlling the temperature of the material in the feeder, accumulator, and the mold, as well as at least one gas injection unit with controls for the gas before, during and after its injection into the mold cavity and/or into gas channels located within and/or around the mold cavity are provided. A closed loop regulating system easily adjusts and regulates the gas flow and monitors the average gas pressure of the injected gas according to a programmed conditioning signal. The gas injection unit has relief valves and gas tanks.

Abstract: An agglomerator structure, used in conjunction with a sifting structure, is described to provide variable sized agglomerates and uniform agglomeration, using at least one cone, with apex pointing toward the feed flow, and an inverted cone with a screen below. The agglomerator structure is provided to enable convenient use in a sanitary environment, with the system including an agglomerator cone above the inverted cone, which defines a central opening for feeding the material to one or more screens. The system is primarily designed for use with a vibration-imparting structure to better enable use in a sanitary environment.

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: 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 recycling previously used agricultural plastic film mulch in which the plastic film mulch is fed by a conveyor along a predetermined path of travel, while being agitated and shaken on the conveyor to dislodge and remove dirt, debris and the like therefrom, shredding the plastic film mulch into discreet pieces in a shredder while removing additional dirt, debris and the like therefrom, conveying the shredded plastic film mulch through a vertical separator along a second, tortuous path of travel, while drying the shredded plastic mulch by heated air and agitating the plastic film mulch by projections extending into the second path of travel to dislodge and remove still further dirt, debris and the like therefrom, and extruding the cleaned and shredded plastic film mulch into a reusable form in an extruder, which melts the plastic film mulch, screens solids from the molten plastic, and extrudes the molten plastic into a reusable form, such as pellets.

Abstract: A compaction head of a production machine for reinforced concrete pipes has a smoothing cylinder, non-rotatably mounted on its drive shaft, for smoothing the inside of the concrete mixture that has been filled into a vertical mold. On a covering wall of the smoothing cylinder, the rolls, for the radial compaction of a concrete mixture, are mounted axis-parallel and orbiting on a circular path around and driven by the drive shaft at a specified orbiting speed about the axis of the drive shaft and about their own axis, such that the direction of rotation of each of the rolls about its own axis is opposite to that of the covering wall also driven by the drive shaft.

Abstract: A vibrating table for compaction of a mass such as concrete. The vibrating table includes a table top adapted to support the mass to be compacted. Support members support the table top above a floor and provide the table top with two degrees of freedom of movement in a principal plane which is substantially horizontal. The support members rigidly support the table top against movement in a generally vertical direction. An excitation shaft is coupled to the table top and has an axis of rotation which is generally perpendicular to the horizontal principal plane. The excitation shaft includes an unbalanced mass for the creation of an excitation force which provides movement of the table top in the horizontal principal plane.

Abstract: A system for continuously forming a concrete structure that extends in a generally horizontal direction and has a predetermined cross-sectional configuration is provided. The system includes a frame, a first form, and a second form. The first and second forms are coupled to the frame and support at least a portion of the sides of the concrete structure being formed. The second form forms a pattern in one of the outside surfaces of the concrete. The first form may also form a pattern. The pattern includes concave and convex portions that extend other than just in the horizontal direction. The second form coacts with the first form to enclose an area having a cross-sectional configuration corresponding to the predetermined cross-sectional configuration of the concrete structure. The frame includes a side arm assembly that slidingly engages the outside of one or both of the forms.

Abstract: Vibrational energy introduced into plastic concrete structures, such as concrete slabs, decks and similar or related concrete structures, at or near the natural resonant frequency of the liquid concrete mass, expedites the consolidation and setting of the concrete. A vibrating apparatus imparts controlled vibrations either onto the surface or beneath the surface of the concrete mass in sequential stages, the frequency of vibrations generally increasing with each subsequent stage, corresponding to the increase in the natural resonant frequency of the progressively-narrowing liquid concrete at the top of the structure. The relatively more consolidated and more dry concrete (typically near the bottom of the slab) is substantially unaffected by the non-resonant frequencies vibrations. In one modification, sensors determine the resonant frequency of the liquid concrete mass during each pass of the vibrator apparatus, and the frequency of the vibrating member is automatically adjusted, accordingly.

Abstract: A portable concrete molding apparatus for forming concrete structures of a predetermined configuration, either on-site or at a central manufacturing facility. The apparatus includes a trailer having furnace plenum bounded by a pair of fixed walls. Each fixed wall cooperates with a movable wall for forming a mold therebetween. Each movable wall includes a concrete inlet for introducing concrete into the bottom portion of the mold. The fixed and movable walls include push-off valves for ensuring separation of a concrete structure from the mold walls, as the mold walls are separated.

Abstract: A vibrating unit having a table driven by two oppositely-rotating vibration generators arranged in parallel. Each vibration generator has coaxial first and second eccentric mass shafts which are relatively rotatable between a first position producing no vibration and a second position where vibration is produced. First and second driving systems respectively include a first double-toothed drive belt drivingly engaged with each of the first shafts to effect counterrotation thereof, and a second double-toothed belt drivingly engaged with each of the second shafts to effect counterrotation thereof. A position adjusting assembly is associated with one of the driving system for permitting the eccentric mass shafts associated therewith to be angularly adjusted relative to the eccentric mass shafts of the other driving system during rotational driving of the vibration generators to permit the vibration generators to be adjusted between a vibration-producing position and a nonvibrating position.

Abstract: A vibration controller has a vibratory mechanism with a pulley assembly with four pulleys coupled in pairs on two shafts linked by two belts. The pulley assembly is mounted under a reception table or tables for products to be vibrated and compacted. The pulleys receive offcenter weights for forming an unbalance. The weights are placed only on a aliametric portion of the pulleys. The pulleys are mounted in pairs on the two shafts associated with an phase-shifting device that rotates certain pulleys with respect to each other to vary the relative orientation of the corresponding weights. According to this orientation one can obtain maximum, partial or minimum vibration, one of the shafts being driven by a motor unit.

Abstract: The present invention provides 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.

Abstract: A concrete block molding apparatus and component molding parts coated with a flame spray refractory material and binder composition. The coatings can be smoothed to provide a finished surface for the blocks as by polishing, pressure on the coated surface or preferably by a coating of a thermoset resin as a binder. A preferred thermoset resin includes polytetrafluoroethylene (PTFE) in the coating to improve slipperiness. The parts have a greatly increased life cycle and the apparatus has a much longer cycle time between changes of the parts.

Abstract: An improved pneumatic vibrator configuration is provided. Specifically, the vibrator is annular in configuration which enables functional elements of adjacent components in a multi-component system to be passed through the vibrator. The configuration of the annular vibrator of the present invention conserves space in multi-component manufacturing systems.

Abstract: The present invention pertains to a device for preparing and feeding a monolithic ceramic mass into a metallurgical melting vessel, including a mixer 30 and a feeding device 32, characterized in that the mixer 30 and the feeding device 32 are designed as a compact unit 28 for arrangement above the metallurgical vessel, wherein the mixer 30 and/or the feeding device 32 are arranged relative to one another and movably such that the mass prepared in the mixer 30 can be directly introduced at any desired point of the metallurgical vessel via the feeding device 32.

Abstract: A method for manufacturing concrete panels by continuously pressing and an apparatus for carrying out the method. The concrete panels are successively manufactured by continuously feeding pallets onto a conveyor, feeding a concrete material onto the pallets, continuously pressure frames against the concrete material from the upper side and both lateral sides of the concrete material while imparting vibrations to the pressure frames, forming hollows in the concrete material by thrusting a rotary screw-type core rod therethrough to provide a panel shape hollow molding, and cutting the molded concrete material into a length corresponding to the length of each pallet. In the manufacture process, an organic or inorganic fiber material may be incorporated into the concrete material for the purpose of reinforcement of the finished products.

Abstract: An improved combination counter rotating packerhead and vibrator assembly is provided. A counter rotating packerhead including counter rotating roller assemblies, longbottom assemblies or a combination thereof is disposed directly over an annular pneumatic vibrator. The coaxial drive shaft for the counter rotating packerhead passes through the vibrator thereby permitting the power transmission means to be located below, and isolated from, the vibrator. The vibrator is disposed below, but adjacent to, the counter rotating packerhead for faster pipe production.

Abstract: An apparatus for shaping, and/or directing the flow of deformable materials, wherein the apparatus includes a novel vibrating wall assembly having at least one surface which defines a specific geometric shape over which the deformable material will pass. The novel vibrating wall assembly of this present invention includes the following components: (a) a plurality of pulsating, polygonally-shaped surface elements which are movable between a resting position and an energized position; (b) an energizing device for moving at least one of the plurality of pulsating surface elements from its resting position to its energized position, to form an energized surface element; (c) a biasing device for moving the energized surface element from its energized position back to its resting position; and (d) a linking device for interconnecting the plurality of pulsating surface elements, wherein the linking device allows for the limited pulsating movement of the plurality of pulsating surface elements.

Abstract: The present invention aims to evenly and surely knead a concrete material comprising less water amount. Concrete material layer entered into a kneading tank is cut in an up-and-down direction and divided into a plurality of layer sections arrayed side by side along a right-and-left direction,, and one of the divided layer sections is piled up another one of the divided layer sections in the up-and-down direction, then the piled up concrete layer sections are compacted, in other words are pressed in the up-and-down direction and extended in a horizontal direction, and further these steps are repeated.

Abstract: Method for continuously forming concrete blocks or pavers includes a frame for defining a supporting structure with a mold box flexibly mounted thereon, the mold box having internal cavities contoured to define preselected block patterns, wherein a feed device for receiving concrete material is operable for selective positioning over an upper surface of the mold box for investing concrete material into the cavities. First and second sets of vibrators are mounted, respectively, generally at opposite ends of the mold box means and are operable for being selectively driven by associated first and second power drives. The first and second power drives are selectively operable for synchronizing or independently actuated the first and second sets of vibrators, respectively, so that concrete material invested into the cavities of the mold box may be vibrated so that the concrete material is evenly distributed in substantially equal masses throughout the cavities in the mold box.

Abstract: A concrete pipe making machine having a pair of combined roller head and vibrating core assemblies are used with two molds to prepack and vibrate concrete within the molds to simultaneously produce two concrete pipes. A controller is programmed in response to packing forces of the packerheads to control conveyors that discharge concrete into the molds and the lift speed of the packerhead and core assemblies to produce concrete pipes having uniform density throughout the length of the concrete pipes.

Abstract: An apparatus is provided for forming a miniature pot. A pottery wheel has a diameter no larger than two inches and rotates about a vertical axis. The wheel has a facing flat surface for supporting the miniature pot. A motor is coupled to the wheel for rotating the wheel about the axis at an adjustable rotational speed of between 200 and 10,000 revolutions per minute. A support base contains the motor and further includes a power source. The wheel extends above the base, and preferably includes the rotor portion of the motor. The wheel further includes a disk shaped platform and a support shaft. The platform is disengagable from the shaft so that a replacement platform may be engaged with the shaft. The platform further includes a clay preform attached to the surface of the platform. The apparatus is preferably small and light weight enough so that it may be supported by a hand and easily carried therein.

Abstract: Apparatus for continuously forming concrete blocks or pavers comprises a frame for defining a supporting structure with a mold box flexibly mounted thereon, the mold box having internal cavities contoured to define preselected block patterns, wherein a feed device for receiving concrete material is operable for selective positioning over an upper surface of the mold box for investing concrete material into the cavities. First and second sets of vibrators are mounted, respectively, generally at opposite ends of the mold box means and are operable for being selectively driven by associated first and second power drives. The first and second power drives are selectively operable for synchronizing or independently actuated the first and second sets of vibrators, respectively, so that concrete material invested into the cavities of the mold box may be vibrated so that the concrete material is evenly distributed in substantially equal masses throughout the cavities in the mold box.

Abstract: An apparatus for the production of a symmetrical oval concrete pipe including an oval male joint member and an oval female joint member formed on opposite ends of an oval pipe body having a form including an outer jacket and an inner core disposed in spaced relationship relative to each other to form the oval pipe body therebetween; an upper pallet and a lower pallet configured to form the oval male joint member and the oval female joint member respectively, and a pallet positioning structure configured to engage the upper pallet and the lower pallet to operatively position the upper pallet and lower pallet relative to the outer jacket and inner core such that corresponding points on the upper pallet and the lower pallet are aligned relative to each other whereby corresponding points of the oval male joint member and the female joint member are aligned relative to each other.

Abstract: Overall production line equipment is utilized in producing many large concrete panels, in an initial horizontal position, during each day of many operational days, with these panels preferably being later installed vertically with other like panels to form a sound barrier alongside a vehicle way. Each concrete panel has its own integral pilasters at respective edges, in turn having respective tongue and groove edges; respective patterns and color accents on each side, with the pattern on the then top side being formed by using a rockable stamp subassembly, mounted on a cart; reinforcing throughout the panels, inclusive of the integral pilasters; lifting subassemblies; and anchoring subassemblies, adapted to be later mated with a receiving subassembly anchored in a concrete footing, located where the panel with other panels forms a sound barrier alongside vehicle ways.