Abstract: The invention relates to a rotary indexing press for the production of green compacts from powder substances. The rotary indexing press is provided with an indexing plate equipped with a plurality of tool cavities assigned to a plurality of tool positions, with said tool positions being at a minimum used for the filling, compacting, and ejecting of workpieces, and with at least one cavity being assigned to each tool position, and wherein the indexing plate having a form-closed and/or force-dosed connection with the body of the machine during compacting. The invention moreover relates to a method for the production of green compacts from powder materials using a rotary indexing press.

Abstract: A cup thermoforming machine includes a frame, a movable upper platen, a clamping grid and a movable lower platen. The movable upper platen is supported for vertical reciprocation by the frame, and carries a male die. The clamping grid is carried by the frame above a sheet of thermoformable material and has a clearance aperture for the male die. The lower platen is supported for vertical reciprocation by the frame beneath the clamping grid and carries a female die.

Abstract: The present invention relates to an apparatus for making a food product (2), said product having a solid outer shell (3) with top (4), bottom (5) and side (6) walls, and optionally an inner core (7) filled with liquid, semi-solid and/or solid filling, characterized in that said apparatus comprises: (i) a support frame (8) holding at least one matrix (9) that goes through said support frame (8) and has opposed openings, (ii) two punches (11a, 11b) disposed respectively each side of said matrix (9) and facing said openings, said punches having a cross section that corresponds to the cross section of said openings, and being movable along a common axis that corresponds to the longitudinal axis of said matrix, said matrix and said pair of punches defining respectively the side and the end walls of a mold (12), (iii) filling means for filling the mold (12), with a predetermined quantity of food product in a liquid or semi-solid form, (iv) actuating means for moving said punches (11a, 11b) and exerting a longitudin

Abstract: An apparatus for forming one or more blocks from carbon dioxide particle is configured to allow changing between precise thicknesses with very little downtime, utilizing both weight based and volumetric dosing. A spacer supports the lower ejection piston during block forming, with a shuttle discharging particles into the forming chamber while simultaneously pushing one or more previously formed blocks on to a conveyor. In one embodiment, the shuttle dosing cavity has a volume that is greater than the volume of the forming chamber volume, which allows more pellets, volumetrically, to be dosed into the dosing cavity than the volume of the forming cavity.

Abstract: Guide and retaining assembly for a press compensator comprising: a guide bushing (32) for the compensator (20) in its bore, said guide bushing being designed to be fitted around the compensator, a retaining nut (38) that that is configured to be screwed into the bore, the guide bushing (32) being located between a shoulder on the compensator and the retaining nut (38), and means (44) axially fixing the guide bushing (32) and the retaining nut (38) while maintaining an axial and transverse clearance between the guide bushing (32) and the retaining nut (38), said means (44) being such that the guide bushing (32) is free to rotate relative to the retaining nut (38).

Abstract: In a molding die for multicolored molding, a second fixed die includes a hollow shape portion which is arranged at a portion associated with an optical functional surface. The second fixed die further includes an abutting portion which abuts on the optical element excluding the optical functional surface.

Abstract: The invention relates to a device for forming moulded bodies from a mouldable mass comprising a matrix grid (19) in which at least one receiving chamber (21) is accommodated, and at least one tool (17, 18) with which the mouldable mass can be pressed into the receiving chamber (21). Said claimed device is characterised in that the tool (17, 18) can be displaced along a guide path (3A, 3B) that comprises a moulding section (A), in which a constant pressure is exerted upon portions of the mouldable mass on the strip by the tools (17, 18), said mass being disposed in the receiving chamber (21). The invention further relates to a method for forming moulded bodies, in which a mouldable mass is formed and is guided to at least one receiving chamber of a matrix grid (1).

Abstract: The invention relates to a device for forming moldable bodies (57) from a moldable mass by means of a matrix grid (19), in which at least one cavity (21) is formed by lateral limiting elements (20), and at least one tool (17, 18) which compresses the moldable mass into the cavity (21). The inventive device is characterized by a compression partition (38) that can be displaced on the matrix grid (19) for portioning the moldable mass. Said compression partition (38) comprises lateral limiting elements (39) that correspond to the lateral limiting elements (20) of the matrix grid (19). The invention also relates to a method for forming moldable bodies (57) consisting of forming a moldable mass and guiding it to a matrix grid (19) such that it rests on the front face (45) of the lateral limiting elements (20) of the matrix grid (19).

Abstract: An apparatus comprises an extruding device having a dispensing opening for extruding a flowable material along an exit direction through the dispensing opening, and a cutting arrangement for separating a dose from the flowable material, the cutting arrangement being movable with a motion component that is parallel to the exit direction.

Abstract: A method, control system, computer program, and article of manufacture for controlling hydraulic press systems, and a new press system that utilizes a number of improvements over the assignee's original system. The control system is designed to control a hydraulic press having a die, at least two separate sets of workpiece forming punches, and at least two hydraulic pistons, each operatively associated with one set of workpiece-forming punches. The control system includes a means for controlling a magnitude of a pressing force applied by each set of workpiece-forming punches, and a means for controlling a position of each set of workpiece-forming punches relative to the die.

Abstract: Self-supporting intermediate walls (12) for cellular division of mould lower parts in a concrete casting machine of the kind typically used for making cast items in the form of concrete blocks for wall construction and elements, solid blocks or blocks with cavities or recesses in two or more rows. By the self-supporting design, the distance between rows of products may be reduced for better utilization of the production plate while at the same time maintaining the replaceability of wear parts. By the invention is indicated a self-supporting intermediate wall (12) consisting of two halves, an intermediate wall with lower pins (18) and an intermediate wall with upper pins (20) which, when the two halves are assembled with the pins engaging a partitioning plate (8), form a self-supporting intermediate wall (12). For moulds with core supports (28), intermediate wall parts (22 and 23) are used with a recess (25) in which the boss (29) on the core support iron (28) fits.

Abstract: A lower punch is arranged to be inserted into a cavity of a die from a lower side of the die. A upper punch is arranged to be inserted into the cavity from an upper side of the die to compact the powder filled in the cavity, in cooperation with the lower punch. A feeder supplies the powder into the cavity. A first cam driving system has a first cam for vertically moving the die relative to the lower punch. A second cam driving system has a second cam for vertically moving the upper punch. A third cam driving system has a third cam for moving the feeder forward or backward relative to the cavity. A contact member is connected to the first cam driving system. A stopper is located above or below the contact member and regulates relative vertical movement of the die with respect to the lower punch, in cooperation with the contact member. A fourth cam driving system has a fourth cam for vertically moving the stopper. The first cam, the second cam, the third cam, and the fourth cam are rotated in synchronism.

Abstract: A powder compression molding machine is configured such that a plurality of lower and upper punches 61, 41 are allowed to enter a plurality of through-die holes 31 provided in first and second molding die sections 32, 33 of a slide plate 3 in a compression molding zone 21 to compressively mold powder and the slide plate 3 is slid to push out compacts downward and collect them in compact discharge zones 22a, 22b. Even when powder is compressively molded at a low compression force into solids having high porosity, compacts can satisfactorily be molded and collected without crumblingness, the compacts having sufficient high porosity and being dissolvable in water or the like.

Abstract: The present invention provides a method for manufacturing a molding with a core by using compression molding means having upper and lower double-structured punches; the method comprising the steps of supplying molding material for the core and molding material for the outer layer respectively, the step of compression-molding the molding material for the core and/or the molding material for the outer layer, and the step of compression-molding the whole molding with a core, wherein: the step of supplying the molding material for the outer layer posterior to the step of supplying the molding material for the core is performed until a tip of the lower center punch finally takes a position protruding from a tip of the lower outer punch; and the step of compression-molding the whole molding with a core is performed with the tips of the lower center punch and the lower outer punch aligned with each other.

Abstract: The manufacturing efficiency of a light emitter (product) having a lens member and a light emitting device is efficiently improved. With a molding die for forming a light emitter, a frame before the molding and bonding process, with a required number of light-emitting devices mounted thereon, is set on a setting section provided in an upper die. A required amount of transparent liquid resin material is supplied by a dispenser into each of cavities of cavity blocks provided in a lower die in correspondence to the light-emitting devices, respectively. A molding die is closed so as to elastically press the mouths of the cavities onto the light emission surfaces of the light emitting devices, respectively.

Abstract: The invention relates to a method for pressing a formed part, in which a ceramic and/or metallic material to be pressed, in particular powdery and/or granulated material (3) is being filled into the die cavity (2) of a die (1), in an axis of compaction (X) with at least one pressing punch (4, 5) the material (3) is being pressed, and in a direction, with a component of movement perpendicular to the first axis of compaction (X), a transverse punch (6) is being moved into the material (3) in a transverse axis (QX), with the movement of the transverse punch (6) being carried out during and/or after pressing of the material (3) in the axis of compaction (X), in particular during and/or after beginning of the compaction operation of the material (3). In particular there is carried out according to the method the actuation of pressing punches in the axis of compaction in such a way, that there act onto the transverse punch in the direction of the axis of compaction on both sides approximately equal forces.

Abstract: Molds are disclosed for forming golf-ball covers by casting. An exemplary mold includes first and second support members that are placeable in face-to-face opposition to each other. At least one respective mold-cavity insert, defining a respective hemispherical cavity, is mounted to each support member. The mold-cavity insert is floatable in at least three (e.g., x, y, z) degrees of freedom relative to the respective support member. Each mold-cavity insert on the first support member is in face-to-face opposition to a respective mold-cavity insert on the second support member whenever the support members are in face-to-face opposition to each other, such that the respective hemispherical cavities of each opposing pair of inserts form respective spherical ball-cover cavities. A respective z-direction bias is associated with each mold-cavity insert. Also, a respective self-centering device is associated with each opposing pair of inserts.

Abstract: A rotary press with a stand, in which a rotor driven by a drive motor is rotatably mounted around a vertical axis, wherein the rotor has an upper and a lower punch guide for upper and lower punches and a die plate between the punch guides, wherein further the compression punches co-operate with die bores of the die plate, and further with at least one filling- and dosage station arranged on a circle, which has a radial dosage cam element which is adjustable in its height by means of a dosage drive and which presets the height of the lower punches in the filling- and dosage station, with at least one compression station arranged on a circle with at least one upper and one lower compression roller, which co-operate with the upper and lower punches, wherein the compression rollers are adjustable in the height by a compression roller drive, and with fastening means for fastening the compression roller- and dosage drives on the stand, wherein the dosage drive and the compression roller drive have identical install

Abstract: The problem of a conventional press molder is insufficient rigidity of an annular cushion ring receiving inward force, which cannot prevent a lower portion of the cushion ring from deforming, i.e., bending and expanding outward. A press molder (1) according to the present invention comprises a die (2), a punch (3) and a cushion ring (5). The cushion ring (5) has a rib (51) which is a reinforcing structure so as to be prevented from being bent at the time of press molding, and the punch (3) is formed therein with a recess (31) which is a reinforcing structure a escape part so as to prevent the punch 3 from interfering with the rib (51) of the cushion ring (5).

Abstract: A powder compression molding machine is configured such that a plurality of lower and upper punches 61, 41 are allowed to enter a plurality of through-die holes 31 provided in first and second molding die sections 32, 33 of a slide plate 3 in a compression molding zone 21 to compressively mold powder and the slide plate 3 is slid to push out compacts downward and collect them in compact discharge zones 22a, 22b. Even when powder is compressively molded at a low compression force into solids having high porosity, compacts can satisfactorily be molded and collected without crumblingness, the compacts having sufficient high porosity and being dissolvable in water or the like.

Abstract: A technique for allowing the convenient and orderly withdrawal of contents is disclosed. An apparatus according to the technique may include a container which includes an enhancement at the rim of the container. The enhancement provides the functionality to move edible and/or inedible substances onto objects. In one example, the enhancement may protrude inwardly as a smoothed surface that may push substances onto objects as the objects are removed from the container.

Abstract: A cup thermoforming machine includes a frame, a movable upper platen, a clamping grid and a movable lower platen. The movable upper platen is supported for vertical reciprocation by the frame, and carries a male die. The clamping grid is carried by the frame above a sheet of thermoformable material and has a clearance aperture for the male die. The lower platen is supported for vertical reciprocation by the frame beneath the clamping grid and carries a female die.

Abstract: A mould set for making contact lenses comprising a first unitary half mould set comprising a plurality of male mould halves in a first array and a second unitary half mould set comprising a plurality of female mould halves in a second array, wherein the arrays are such as to permit the engagement of respective pairs of male and female mould halves to define a corresponding set of mould cavities therebetween, and to permit engagement of each said female mould half with a different said male mould half by relative rotation of the first and second array about an axis of rotation, such that the male and female mould halves can be engaged in a plurality of different relative orientations. The shape and/or orientation of the male mould halves in the first array, and the female mould halves in the second array is not identical for each mould half in each said array, whereby relative rotation results in the definition of different sets of respective mould cavities.

Abstract: The present invention includes molds for forming ophthalmic lenses, such as contact lens. In particular, the present invention relates to apparatus, molds and methods for fashioning mold parts used to fashion an ophthalmic lens which includes cooling a mold structure used to fashion a mold part prior to depositing a molten material into the mold structure.

Abstract: A method for separating a portion of extruded material from the continuous strip leaving an extruder, consisting of passing in front of the extrusion nozzle withdrawal means associated with at least one cutting means; said withdrawal means and said at least one cutting means are made to move independently of each other with velocities, in the sense of vectors, which differ from each other and differ in relation to the material portion separated.

Abstract: A platen press for pressing loose wood-based material into structural panels at high temperature while exhausting steam generated in the process through vents distributed across the face of a platen to thereby produce an improved product. The vents are periodically cleaned to remove elements of the panel material that have been deposited into the vents with steam flow or mechanical pressure by pins carried within the platen. The pins are positively extended into respective vents by actuating elements housed within the thickness of the body of the platen.

Abstract: Machine for forming caps by compression molding comprising: a first carousel rotating about a central axis and provided peripherally with a plurality of compression molding units mounted equidistant from each other and from the axis of rotation, said units comprising an upper punch and a lower die provided with a cavity, said punch and die being mutually movable along a common vertical axis in response to suitable operating means; a second carousel rotating about a central axis parallel to that of the first carousel and provided peripherally with means for feeding the charge of material to be molded to the die cavities of the first carousel, and means for collecting the molded caps abandoned by the punches of the first carousel; means for feeding charges of material to be molded to said second carousel; a possible third carousel provided peripherally with means for guiding and conveying the caps abandoned by the second carousel; said first and second carousel and said second and possible third carousel having

Abstract: A modular press assembly for performing multiple position pressing with a single press. The modular press assembly includes a floating mount attached to the upper platen of the press, a hydraulic cylinder, and a press ram coupled to the cylinder which automatically guides itself precisely into axial alignment with a die situated on a lower platen and containing material to be pressed. A plurality of such press assemblies are mounted on the upper platen and are connected through respective flow control valves to an independent hydraulic control system to allow adjustment of the travel of the multiple press rams. This configuration facilitates multiple position pressing and equally divides the total press force from the single hydraulic press, distributing it among each of the multiple positions independent of the final height of each pressed body.

Abstract: To manufacture a multi-core press-coated molded product efficiently and in a single step from molding materials, namely, powder or granular particles, a punch has been devised that is characterized in that the punch, consists of a center punch whose tip portion is split into two or more parts, and an outer punch enclosing the outer perimeter of the center punch, and whose tip portion fills the gap at the tip portion of the center punch, with both the center and outer punches being slidable and manipulatable for compression operation the method of manufacturing a multi-core press-coated molded product using the punch of the invention as compression molding means for at least the upper punch and preferably for both the upper and lower punches, and a rotary compression molding machine therefore is also discribed.

Abstract: The punch coated with Cr-Dopé-N is advantageous as a punch for preparing tablets containing an acidic substance or an adhesive substance and is excellent in corrosion resistance and releasing property.

Abstract: Modular die or mold assemblies comprise a platform, and at least one die or mold unit which is releaseably connected to the platform. The invention permits rapid changing of molds or dies, especially in the manufacture of detergent bars, such as soap bars. Surface ornamentation such as logos can be imparted to the detergent bars either directly from the stamping surface of the dies, from the stamping surface of the dies through an elastomeric lining, or from the surface of the elastomeric lining; in the latter case the indicia is imparted by a mold used to prepare the lining. The modular molds may be used where it is desired to coat the dies with elastomer, particularly where logos are imparted to the elastomeric layer, and where it may be desirable to change the logos, e.g., by changing the modular mold units.

Abstract: A die for a rotary compression press, comprising a die holder axially supported in a guide bore and a die insert which is seated in the end-side bore of the die holder via a trunnion-shaped projection and is adapted to be mounted via releasable fastening means, wherein the projection is helically guided in the bore between axially spaced stops and is biased by a spring towards the associated front-end face of the die holder.

Abstract: Plant for forming predetermined quantities of synthetic material comprising a rotary turntable carrying on its periphery a plurality of dispensing devices, and means for feeding the material in the molten state to said dispensing devices; the plant also comprises a fixed part directly connected to the molten material feed, a rotary sealed joint connecting said fixed part to the rotary turntable, operating means for interacting with the dispensing devices positioned on the rotary turntable to operate them in the sense of opening and closing them in response to the rotations of the turntable, and means for rotating the turntable.

Abstract: A sampling die and press for compaction of a powder sample are disclosed. The die is designed to serve both as a mold for compacting a powder sample into a tablet or caplet and as a container for sampling the powder that is to be compacted. The die is made in two pieces with the top piece of the die having a passage and the bottom piece of the die sealing the bottom opening of the passage to form a mold cavity. The invention also includes a press adapted for compacting a powder sample contained within the mold cavity of a die which serves both as a sampling container for the powder and as a mold for compaction of the powder.

Abstract: The present invention is directed to a process for instructing an operator during maintenance and/or repair work on a tablet press. The process is performed by a computer. The process includes selecting a tablet press function, whereby selection is read by the computer. A list of function sequences is output to an output device in accordance with the step of selecting. Each function sequence corresponds to repair/maintenance information pertaining to the selected tablet press function. A function sequence is selected from the list of function sequences. Finally, the selected sequence is output as a video sequence and/or an audio sequence.

Abstract: A chain die assembly for producing candy includes a plurality of first chain links each including a cutting edge, a plurality of second chain links each including a cutting edge and a common longitudinal center plane. A plurality of guiding housings is arranged right and left of the longitudinal center plane, and they each carry at least one die. A plurality of shafts each connects one of the first chain links to one of the second chain links and to the guiding housings. The second chain links each are fixedly connected to at least one of the guiding housings to be free from backlash and to be unrotatable with respect to the guiding housing.

Abstract: An object is to reduce mutual interference between a plurality of sets of molds coupled to a common frame stand to improve the processing accuracy. A plurality of sets (e.g. two sets) of molds are driven by servo motors (6a, 6b). The servo motors (6a, 6b) are individually controlled by servo amplifiers (8a, 8b), respectively. A control portion in the servo amplifier (8a) calculates a current (I) so that the measured value (X) of the rotating position of the servo motor (6a) follows a directing value (X0) sent from a CPU through a pulse generator (9). A torque detecting/limiting portion (25) limits the calculated current (I) so that a limit value of the torque sent from the CPU through a DA converter (12) is not exceeded and sends it to the servo motor (6a) through a current amplifier (26). When the torque of the servo motor (6a) reaches the limit value after the molds come in contact, the directing value (X0) is rapidly advanced in the mold-losing direction.

Abstract: Disclosed are a molding apparatus for glass optical elements a plurality of molds each constituted of an upper mold and a lower mold, a matrix supporting the molds, and heating means wound around the matrix for heating the molds, wherein the matrix extends in a longitudinal form and has a constant width, wherein the plurality of the molds are arranged in the matrix in a line so that the center of each mold is located on a center line of the matrix, and wherein a distance between the heating means and the matrix is constant at least at an edge of the matrix in a transverse direction, and a molding method for optical elements comprising the steps of: softening a plurality of glass material pieces by heat; and making a simultaneous press molding of the glass material pieces with a plurality of molds, constituted of upper and lower molds, arranged in a longitudinal form matrix, in a line extending in a longitudinal direction, wherein each mold is heated by thermal conductance from the matrix heated by heating mea

Abstract: This invention relates to a device to compact parts with an undercut out of powder material having an upper die moveable relative a lower die, at least one upper punch associated with the upper die for relative movement therebetween, at least two lower punches associated with said lower die for relative movement therebetween, the lower punches defining a lower cavity with the lower die for filling with the powder material when the dies are in an open position, the upper die contacting the lower die in a closed position for movement of one of the lower punches towards the upper die so as to transfer the powder material towards the upper die and then to compact the powder material between the upper and lower punches with said dies in the closed position so as to produce said part; said dies moveable to an eject position for ejection of the compacted part.

Abstract: A molding press for simultaneously molding a product and laminating a pattern layer to the surface of the molded product comprising a bottom mold plate, a top mold plate, a mold ring element surrounding the mold plates and moveable independently of the top and bottom mold plates, an upper surface on said mold ring for engaging a peripheral edge of the top mold plate, and a flat groove in said mold ring upper surface which is slightly deeper than the thickness of a pattern layer to be laminated to the top surface of the final molded product.

Abstract: An apparatus has an apparatus body and a support shaft rotatably supported on the apparatus body. An intermediate plate is provided at an intermediate height of the apparatus body with a plurality of dies arranged in a substantially parallel plane where corresponding forming chambers are defined. Relative to those areas corresponding to the forming chambers, upper punches are provided above the intermediate plate in a way to be movable in an up/down direction and lower punches are provided below the intermediate plate in a way to be movable in the up/down direction. The upper punch is held in a raised position in a given timing corresponding to the rotation of the main shaft at which time powder is fed into the forming chamber. When the upper punch is released from being held in a raised position, the upper punch is downwardly driven to allow it to enter into the forming chamber. The lower punch is held in that lowered position where the lower end opening is closed.

Abstract: A method and apparatus is provided for the formation of a tablet from tableting feedstock. An elongate die is provided which has a cavity defined by an inner wall. A pair of die punches are insertably positioned within the cavity. The die punches include opposed facing surfaces for supporting therebetween tableting feedstock. The die punches are relatively movable within the cavity to a tablet forming position to compress the feedstock into a tablet. The tablet forming positions defined by the facing die punch surfaces are spaced apart sufficient distance so as to maintain the formed tablet in contact with the inner wall of the cavity so as to retain the tablet within the cavity upon removal of the die punches.

Abstract: Disclosed is a process for producing a crimp-bonded fibrous cellulosic laminate. The process includes the steps of: 1) providing at least two superposed plies of a fibrous cellulosic material; 2) passing the superposed plies through a crimp roll arrangement including a rotating crimp element and a rotating anvil element; and 3) applying a pressure load against the rotating elements sufficient to crimp bond the fibrous cellulosic material plies into a laminate. The crimp element has protruding members configured in a discontinuous pattern aligned on an axis that is parallel to the cross-machine direction to provide a substantially continuous uniform area of localized surface contacts between the rotating crimp and anvil elements across the width of the plies. Also disclosed is an overall crimp-bonded fibrous cellulosic laminate and an apparatus for crimp-bonding multiple superposed plies of a fibrous cellulosic material.

Abstract: A device (24) for aligning with a feeding line (8) of a moving transfer conveyor (3) and for bending a round elongated dough piece (13) randomly placed on the moving transfer conveyor for transfer, including a pair of stoppers (26, 26) symmetrically arranged in a funnel-shape above the moving transfer conveyor (3) so that the dough piece (13) can be moved to a central position between the stoppers (26) and (26). The stoppers are rotatable to bend the dough piece (13) and movable to release it on the moving transfer conveyor.

Abstract: A method of manufacturing a powder molding having a undercut portion, etc. comprises filling a space of a die with a powder, pressing the powder in the space of the die by punches inserted therein through an opening of the die, and withdrawing a undercut portion shaping means from the space of the die for extracting the powder molding.

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: A press is provided for simultaneously pressing and piercing an object. The piercing means moves from a sheathed to unsheathed position in response to compressive pressure. The piercing means are normally biased in the sheathed position by a bias means. Methods and apparatus for piercing an object are disclosed. The press can be used to produce a pierced dispensing device having a compression coating by (a) charging to a die mold a quantity of powder to be compressed; (b) delivering to the die mold an unpierced dispensing device core; (c) charging to the die mold an additional quantity of powder to be compressed; and (d) substantially simultaneously (i) compressing the elements within the die mold to produce a compression coating, and (ii) piercing the compression coating. The compression coating can comprise, for example, a loading dose or a semipermeable membrane.

Abstract: Apparatus and method 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 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 rotary pelletizing machine includes a housing and a pelletizing assembly removably secured in the housing and including a rotatable matrix disc, upper and lower punches supported in the matrix disc for joint rotation therewith and axial displacement relative thereto, upper and lower cams for controlling positions of the upper and lower discs, and elements that enable rotation of the matrix disc relative to the cams. Upon releasing elements that secure the assembly in the housing, the pelletizing assembly can be lifted from a drive shaft that extends in the housing for imparting rotation to the matrix disc, as a unit.

Abstract: Apparatus and method for molding a plurality of articles having various masses and shapes wherein a parison mass is injected at constant back pressure through a time controlled valve from a supply of molten molding material at predetermined temperature and pressure. The articles are compression molded at predetermined pressures in accordance with their shapes or masses. The variable compression pressures are provided in one embodiment by similar actuators which are unequally excited; and in another embodiment an actuator is coupled to a mold cavity by a machine having a variable mechanical advantage. The actuators are pivotally mounted. A series of lenses including negative powers is particularly contemplated.