Abstract: A hose connection element integrally cast as part of a cast structure such as a water outlet conduit for a vehicle engine comprises a tubular structure including a circumferential hose retaining bead with a flawless sealing surface between the bead and a proximal end thereof. A set of three vented tooling elements is used in creating a polystyrene pattern of the cast structure including integral hose connection element including first and second tooling elements to create first and second half-sections of a for a body portion pattern. The first and second tooling elements include a recess at one end thereof to form a socket depression in the body portion. The third tooling element comprises a cylindrical cavity including an outer wall and an inner wall, with the outer wall being uninterrupted by vent openings and including a circumferential area of protruberance near one end thereof, the parting line for the third tooling element being positioned along a crest of the protuberance.

Abstract: The present invention is directed to a reuseable mold for casting a hollow form made of an aggregate filled thermosetting resin. The reuseable mold includes an outer mold, made from sheets of thermoplastic resin, and an inner mold, also made from sheets of thermoplastic resin, having a base with plugable opening(s) for connecting an air supply for popping the inner mold from the cast hollow form fabricated in the reuseable mold. The sheets are preferably 1" sheets of polyethylene.

Abstract: The invention relates to seals on equipment used to make concrete pipe. Such equipment includes two generally vertical cylindrical surfaces, a core and a mold, with upper and lower end forming rings. The lower end forming ring, a pallet, has inner and outer vertical surfaces. Seals of the present invention are formed by using two hollow tubes of soft rubber. The tubes are housed in lower portions of the core and the mold so that they are in alignment with the inner and outer surfaces of the pallet. The tubes are pressurized into tight engagement with the pallet to prevent the outward flow of slurry from the space between the core and the mold.

Abstract: A cup-shaped mold for the shaping and baking of bread or cookie dough comprises an upper cupped molding member and a lower, slightly larger, cupped molding member. Each molding member has a flange horizontally extending from its edge. When the molding members are placed together with the dough between them, thereby forming the dough into cup-shaped, the flanges are in continuous contact along their length. During heating of the mold for baking, a plurality of clamps press the flanges together at between 0.5 and 1 p.s.i. to prevent escape of the dough from the mold while allowing partial escape of moisture from the mold.

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: A U-shaped, half-room precast concrete building unit is molded in an open box-like framework having four L-shaped corner assemblies, facing pairs of horizontal legs of which are respectively joined by laterally-extending telescoping spacers, and facing pairs of vertical legs of which are respectively each joined by two laterally-spaced longitudinally-extending plates. Inserts having alternating voids and blocks are placed longitudinally between the vertical leg pairs to form complementary block and void patterns on the molded unit juncture edges. Retainers having projections are placed over the top edges of the plates to form complementary tongue and groove portions. Relative dimensions of the molded unit are selectable through adjustment of the relative positionings of the corner assemblies.

Abstract: Apparatus for producing plastic parts with a resilient projection, such as connectors for corrugated tubing. The apparatus includes means for flowing plastic material on a core provided with a recess to mould the resilient projection, plural core cam surfaces to extract the resilient projection out of the recess, after the mass of plastic material is solidified and extract the solidified part from the core.

Abstract: A tape cassette reel molding apparatus which includes upper and lower opposed molds for forming upper and lower flanges of the tape cassette reel and first and second hub molds provided between the upper and lower molds, the first and second hub molds each having an opposing face which has a semicylindrical cavity therein, at least one of the first and second hub molds being slidable in a direction parallel to the face of the upper mold and away from the other of the first and second hub molds so that when the upper and lower molds and the first and second hub molds are slid into position against each other, the respective cavities therein are all contiguous and a unitary tape cassette reel can be molded.

Abstract: A method and apparatus for precision molding soluable polymers is disclosed, in order to form an exact and precisely shaped product, such as contact lenses and surgical implants. A preferred mold for forming contact lenses includes a female part having an indentation and a sharp circumferential edge surrounding the indentation. The mold also includes a male part which is adapted to contact the sharp circumferential edge of the female part to form the molding cavity between the indentation of the female part and the male part. A semi-permeable gate is formed between the female part and the male part for introducing coagulating fluid into the molding cavity while preventing the escape of the polymer solution from the molding cavity. The semi-permeable gate allows the diffusion of the coagulating fluid into the molding cavity at a faster rate than the rate of diffusion of solvent out of the molding cavity.

Abstract: A injection-molded connector for single-mode optical fibers includes two mating plugs having aligned fiber-receiving holes. To keep transmission losses in the connector at an acceptable level, the eccentricity of each hole relative to its plug profile must be maintained within a fraction of a micron. The mold utilized to form the plugs includes a dual-eccentric-cam adjustment mechanism that comprises nested conically shaped cams. In a method for fabricating such plugs, rotation of the cams serves to move a part of the mold that positions a hole-forming pin. By rotating this mechanism, the eccentricity of the fiber hole relative to the profile of the molded plug can be established and maintained within the required precision.

Abstract: Molding apparatus, for example for molding components of polymerized resin without drawing, comprises a mold defined by a mold wall having a first thermal expansion coefficient, and a die including a die wall having a second thermal expansion coefficient greater than the said first coefficient, a molding operation being carried out by inserting the die into the mold at a first temperature, heating the die and the mold to a second temperature higher than the first temperature, and subsequently cooling the die and the mold after a component has been molded. In accordance with the invention, the die wall includes a plurality of separate sectors which are pivotally mounted on a common support member and which are arranged and dimensioned such that, at the second temperature, the radially outer faces of the sectors adjoin one another contiguously to define the molding face of the die wall.

Abstract: A method and apparatus are described for forming a closure device having a cylindrical plug and a cylindrical collar extending coextensively and coaxially from a cap. The apparatus includes an outer mold defining an injection mold cavity. A cylindrical hollow outer core extends into the injection mold cavity and a cylindrical inner core extends into the injection mold cavity within the hollow outer core. Pushing means separate the molded part from the inner core. A stripper separates the part from the outer core by engaging an annular shoulder on the part. The part is pushed free of the mold's inner core after the outer mold is removed but before the stripper is advanced to engage the annular shoulder.

Abstract: Injection molding methods and apparatus for the production of casting molds for toric lenses having ballast oriented properly with respect to the cylinder axis of the toric surfaces. A calibrated rotatable ring mechanism is used within the injection molding body, for producing a slot or other alignment means on the lens casting mold at a point which is offset a predetermined number of degrees from the axis of the toric surfaces being formed in the casting mold. When the casting mold containing a newly cast lens is mounted on a precision lathe, the mating of the slot with a permanent ridge on the lathe spud ensures that the mold seats on the lathe at the same established place each time with respect to the position of the cutting tool. The offset between the toric axis and the position of the cutting tool has already been established, and therefore there is no need for the lathe operator to make any measurements or resetting of the cutting tool.

Abstract: An apparatus wherein a pan member includes a perimeter rim and a matrix of variously configured cookie mold members, with an upper cutting edge mounted on the pan member. The pan includes securement loops mounted on the floor of the pan to permit vertical storage of the pan against a wall and the like, with the various molds in a protected orientation within the perimeter flange when against a vertical wall surface. Modifications of the invention include selectively removable mold members formed with a magnetic base for securement to the pan floor. A further modification of the invention includes an upper mold member mounted with a lower mold member when positioning a dough portion therebetween, wherein the upper mold member is directed in a complementary manner to the lower pan and effects severing of the dough defining a first cookie portion and a second cookie portion formed by interaction of the mold member relative to the pan.

Abstract: An apparatus for molding a cap (16) including a base portion (18) and peripheral skirt (20) extending axially from and about the base portion (18) includes an outer surface forming mold (44) for forming an outer surface of the base portion (18) and the peripheral skirt (20) and an inner surface forming mold (46) seatable within the outer surface forming mold (44) for forming an inner surface of the base portion (18) and the peripheral skirt (20). The outer surface forming mold (44) is retractable from seated engagement with inner surface forming mold (46) for exposing the molded cap (16) therebetween. The inner surface forming mold (46) includes a core portion (52) and lug forming mold portions (54) disposed radially peripherally thereabout, the lug forming mold portions (54) being able to project axially from and retract radially inwardly relative to the central core portions (52) for releasing and ejecting the molded cap (16) from the inner surface forming mold (46).

Abstract: A method is disclosed for manufacturing a double-walled hollow lost casing for use in the production of marine engineering civil works having inner and outer walls each made of pre-cut plates of such size and shape that the lost casing has a polygonal cross-section throughout its height. The method includes the steps of assembling a jig by interconnecting a plurality of standard frames stacked upon each other to a desired height which together present an outer surface generally corresponding to a wall of a lost casing to be produced, assembling on and releasably attaching the pre-cut plates to the outer surface of the jig and seamlessly joining the assembled plates, and then releasing the completed wall from the jig.

Abstract: The combination of a mold body for molded plastics or the like with a materials alloy core pin which at one and the same time establishes an aperture in the molded material and substantially reduces the mold cooling time by being formed from an alloy which rapidly dissipates heat that includes copper, nickel, silicon and chromium. The percentages of each material in the alloy can vary in a range but there is a preferred percentage to total materials for rapid cooling purposes.

Abstract: An apparatus for manufacturing an otoplastic. An otoplastic is manufactured directly in the ear of a hearing-impaired person in that a deformable envelope is pulled over a die or over a shell or over an overlayed over-shell. This apparatus is then supplied with flowing otoplastic material between the die and the envelope, being supplied therewith in the ear. The envelope expands and assumes the shape of the auditory canal. After hardening or curing of the otoplastic material in the ear of the hearing-impaired person, the envelope and the die are removed and a module of either an in-the-ear or of a behind-the-ear hearing aid is integrated therewith.

Abstract: A mold for forming a synthetic resin tray to be used in molding chocolate bars comprises a female mold portion defining a mold cavity and a male mold portion including a skirt projecting into the cavity. A plate is disposed in the male mold portion and engages an inwardly extending lip at the free end of the skirt. The plate is provided on a side facing the mold cavity with an inscription and is pressed against the lip by a pressure block disposed in the male mold portion. The pressure block is shiftable to enable a substitution of another inscription plate. The inscription plate may be provided with a projection on the inscription side for forming an opening or a recess in the injection molded tray.

Abstract: A metal mold for injection molding tubular or columnar products is provided in which those portions of matching surfaces of the metal mold members close to end portions of an annular or cylindrical cavity are provided with grooves extending continuously or intermittently so as to surround the cavity's end portions.

Abstract: This invention is a method and casing (1) for constructing a rigid structure upon the bottom of the water. The casing to be used is a lost pillar casing of particular shape. It is larger at the bottom than at a higher level and preferably is composed of flat plates formed into a polygonal cross sectional shape with similarity to a multiple sided pyramid. It can be combined with wall casings slit into recesses of the pillar casings. The wall casings can be double wall casings in which case concrete is filled therein and bulk stoney material is filled into the interior of the pillar casings or between the casings.

Abstract: A curved concrete forming structure to provide a 1000 psf system for forming curved walls having a radium in excess of 5'. The structure includes a series of arcuately curved metallic panels secured in stacked side-by-side assembly. The improvement particularly concerns a panel which is comprised of a flexible metallic skin plate. Spaced vertically extending ribs are positioned along the length of the panel on one side thereof. The ribs and the skin plate have essentially the same vertical dimensions. A pair of vertically spaced arcuately curved angles are provided which angles have identical diameters that correspond to the diameter of the concrete wall to be poured using the concrete forming structure. The curved angles are substantially stiffer and inflexible compared to the flexible skin plate.

Abstract: Disclosed herein is a die member for forming a lost foam pattern for casting a cylinder block having a cylindrical bore with an axis and a helical transfer passage including a first portion permitting die member separation in a direction along the axis of the cylindrical bore and a second undercut portion preventing one-piece die member separation in the direction along the axis of the cylindrical bore, which die member comprises a projection forming a first cavity corresponding to a first part of the first portion of the transfer passage, and a core carried by the die member and movable relative to the die member between an extended position forming a second cavity corresponding to a second part of the first portion of the transfer passage and the undercut portion of the transfer passage, and a retracted position affording separation of said core through the second part of the first portion of the transfer passage and in common with separation of said projection from the first portion of the transfer passage

Abstract: A segmental formwork for round structures has a framework consisting of soldiers (6) and polygonal stretchers (5) that can be adjusted angularly at the corner points. The formwork boards (12) of the formwork shell bear directly against the stretchers (5) and have a continuous curvature. The stretchers (5) are formed from structural shapes.

Abstract: A mold and process for integrally forming a modular helical shaped device such as a screw conveyor. The mold has a center operating axis (26) and includes a first section (20A) which forms a portion of the axial member (33). The first section (20A) also forms one of the helical surfaces (36A) disposed around the center axis (26) which has an amount of rotation no greater than 360 degrees. In a similar manner, a second section (20B) is adapted for reciprocating movement along the center axis (26) between an open and closed position with respect to section (20A). The second section (20B) forms the other one of the helical shaped flight members (41). Thus, the two mold sections define a substantially enclosed cavity having an elongated axial portion and a helical shaped flight portion with a selected cross-section that forms the helical shaped device.

Abstract: An apparatus for making parts having complex geometric shapes by injection molding apparatus. The apparatus avoids the formation of a parting line in the molded object. The apparatus includes an injector plate, an ejector plate and a floating plate. The injector plate has at least one mold cavity for making a part and a passageway to allow molten plastic to enter the mold cavity. The ejector plate has at least one mold cavity corresponding to the mold cavity in the injector plate. The floating plate has at least one projection. The plates are adapted to fit together when the mold is closed so that the floating plate is between the injector and ejector plates and the projection fits centrally between the cavities of the injector and ejector plates. A mechanism moves the injector plate, ejector plate and floating plate with respect to one another.

Abstract: A mold comprising a mold core and mold cavity defines means which permits and controls a slight outward stretching of the mold cavity from a first positively centered position to a second positively centered position. By this means, precision centering of the mold and core can be achieved even under ultra high molding pressures without significant core shift.

Abstract: This invention is a method and casing (1) for constructing a rigid structure upon the bottom of the water. The casing to be used is a lost pillar casing of particular shape. It is larger at the bottom than at a higher level and preferably is composed of flat plates formed into a polygonal cross sectional shape with similarity to a multiple sided pyramid. It can be combined with wall casings slit into recesses of the pillar casings. The wall casings can be double wall casings in which case concrete is filled therein and bulk stoney material is filled into the interior of the pillar casings or between the casings.

Abstract: A mold to manufacture an improved press-on bottle cap is disclosed. The cap has a top disk and a thin-walled outer skirt dependent therefrom with an annular tear score line on its inside wall and a laterally projecting tear tab which permit the cap to divide into a lower portion an upper reclosure cap. An annular lip is provided about the outside wall of the cap, approximately in the middle of the reclosure cap. The lip is discontinuous with an open sector above the tear tab. The mold has its parting line in the plane of the annular lip and the lower half of the mold has a lateral cavity to form the tear tab. In this manner, a laterally offset tear tab is provided without splitting the mold cavity along an axial plane.

Abstract: A unitary mold for making ice sculpture includes: a mold made of elastomer material having an inner cavity concave downwardly for forming a model of an ice sculpture such as an animal, a building or a person or an article; a perforating bar or needle poking through the mold which can be warmed up to slightly melt the ice surrounding the bar or needle for its easy withdrawal from the ice product and forming a through hole of the ice sculpture for decorative, carrying, or water-drainage purposes; and an expansion-releasing element such as a flip-flop member formed as a part of the mold, serving as a buffer for the expansion of the water during its refrigeration process.

Abstract: A mold, typically an injection mold, having a mold core and a mold cavity has centering rib means at its parting line defined on one of the core and cavity, projecting in the closed position into a groove defined by the other of the mold core and cavity in the closed position. By this invention a wear member is removably secured in the groove at a position which is radially inward of the centering rib. The wear member defines a radially outer face that is acutely angled outwardly from the longitudinal axis of the mold relative to the centering rib. The radially inner surface of the centering rib defines a plane parallel to the radially outer face and positioned whereby the radially outer face and radially inner surface abut each other in the closed position.

Abstract: An injection molding apparatus is used to line flanged pipe elbows. The pipe elbow is clamped by the flanges to two pivotted platens, one of which has a curved mandrel to shape the inside of the elbow lining.

Abstract: A transfer film comprising a base film and a releasant layer, an ink layer and an adhesive layer laminated on the base film in this order is inserted into a cavity of an injection mold, and injection molding material is injected into the cavity. After the molded article is removed from the mold, the base film is peeled off and the ink layer is transferred to the surface of the molded article. The injection mold has a coring pin for forming an opening in the molded article and the contact surface of the coring pin to be brought into contact with the adhesive layer of the transfer film has poor adhesion to the adhesive layer so that the bond strength between the contact surface of the coring pin and the adhesive layer is lower than those between the ink layer and the releasant layer and between the releasant layer and the base film.

Abstract: A mold, typically an injection mold, comprises a cavity member and a core member relatively movable between open and closed positions to define a first parting line and a molding chamber between the core and cavity members in the closed position. A sprue aperture is provided, communicating with the molding chamber to provide molding compound to the chamber. In accordance with this invention the cavity member defines forward and rearward portions movable between open and closed positions and proportioned whereby objects molded in the molding chamber can be removed from between the forward and rear portions when the cavity member is in its open position.

Abstract: Injection moulding core for pipe bends, with at least one straight pipe terminal portion, wherein the bend core is divided in various segments (a) which are preferably wedge-shaped when viewed sideways and which are connected by appropriate elements preferably mushroom-shaped projections (c) to form a chain so that the medial line (b) of the chain of segments may form a straight line, and which are mutually fixed by appropriate elements, preferably centering pins (d) or adjusting springs and/or an edge overlapping the various segments (a), in order to avoid any displacement and torsion, and which comprise one or a plurality of holes (e) through which pass one or a plurality of traction elements, preferably metal cables (f) which are connected to the last segment (a) of the chain, whereas they are connected to displacement elements (i) at the other end of the chain by means of a core (h) fixed preferably to that end of the chain and provided for the straight pipe terminal portion.

Abstract: The invention is a flexible mask for use in charging a flowable material into selected cells of a honeycomb structure and is of particular utility in charging a sealing material into the ends of selected cells of such a structure during fabrication of solid particulate filter bodies and other selectively plugged honeycomb structures. The mask has a central body with a set of openings extending therethrough which allow passage of the flowable material through to the selected cells and a second set of protrusions extending from one of the surfaces of the mask which are used to align the mask to the end face of the structure and which extend into and sealably cover the cells which are not to receive the flowable material. The mask may be formed from a polymer, preferably an elastomer, using any of three disclosed die apparatuses.

Abstract: A mold and process for integrally forming a modular helical shaped device such as a screw conveyor is disclosed. The mold has a center operating axis (26) and includes a first section (20A) which forms a portion of the axial member (33). The first section (20A) also forms one of the helical surfaces (36A) disposed around the center axis (26) which has an amount of rotation no greater than 360 degrees. In a similar manner, a second section (20B) is adapted for reciprocating movement along the center axis (26) between an open and closed position with respect to section (20A). The second section (20B) forms the other one of the helical shaped flight members (41). Thus, the two mold sections define a substantially enclosed cavity having an elongated axial portion and a helical shaped flight portion with a selected cross-section that forms the helical shaped device.

Abstract: An injection molding mold including an insert in-part defining the mold cavity and readily accessible for replacement from the side of the mold. The insert has a molding head at the mold cavity, a shank extending into a socket in the mold, a mortice in the shank for receiving a retainer to hold the insert in place and, preferably, a camming surface on the end of the shank for dislodging the insert from the mold. The retainer will preferably be a sliding pin having a bifurcated keeper portion providing two tapered prongs engaging opposed slots on the insert's shank for holding the insert in place during molding and subsequently for camming the insert loose from the socket at replacement time.

Abstract: An injection mold assembly including a plurality of locking bars for securing the mold sidewalls in a mold closed position. The locking bars project from one mold plate and are positioned outwardly of the mold sidewalls and include ends adapted to engage the other mold plate when the mold is closed and to function as wedges preventing outward movement of the mold sidewalls.

Abstract: A bucket-shaped container having a rim opening smaller than the diameter of the side wall thereof is injected molded from thermoplastic material using a die set including a molding core which collapses to allow axial removal of the molded container from the mold. The molding core comprises a plurality of individual, wedge-shaped outer core sections which collectively form a continuous molding surface and are slideably mounted on a tapered inner core to allow axial sliding movement of the outer core section relative to the inner core. The sliding movement of the outer core sections on the inner core is provided by a plurality of keylocks which are fixedly secured in corresponding axial keyways in the inner core and which slideably engage corresponding axial keyways in the outer core sections.

Abstract: Apparatus for forming a plastic pilfer-proof cap that comprises a ring, a plurality of inwardly directed hooks joined to one edge of the ring by hinge portions, and a weakened region is integrally molded with a main closure portion comprising a closed end and a skirt extending from the closed end and having an edge to which the pilfer-proof is attached during the molding. The hooks define sectors of a generally frusto-conical shell and extend inwardly and upwardly toward the closed end from the remote end of the ring. The hooks are released from the mold by rotating a mold portion that forms the respective hidden surfaces of the hooks and by pivoting the hooks radially outwardly toward the respective parts of the inner surface of the ring with respect to which the hidden surfaces are juxtaposed.

Abstract: A mold for making a bucket having a pivoted handle. The mold has cooperating mold parts defining cavities for molding a bucket and slotted bail retention means. The mold parts are movable only linearly to release the molded product.

Abstract: Apparatus are disclosed for injection molding a generally cylindrical sleeve-like penile prosthesis from a thermoplastic or thermosetting material utilizing a male mold core and a pair of female mold halves in which the molded prosthesis has encased in a wall therein a portion of a pre-formed length of resilient tubing, the remaining length and free end of the tubing extending from the molded prosthesis as a length of free tubing projecting therefrom. The apparatus includes a mandrel for carrying the mold core and is adapted for mounting between the female mold halves, and means for anchoring one end of the preformed tubing at a selected position on the mold core.

Abstract: A thin-walled, injection-molded plastic container having a thickened sealing rim acquires a particularly smooth sealing rim, onto which a covering film can be sealed in a bacteria-tight, gas-tight and liquid-tight manner, if the gate is located on the sealing rim instead of on the bottom of the container.

Abstract: A spring member (40) is integrally molded to a radial flange (36) of a coupling nut (30), the spring member including a detent tooth (42) and having one end thereof being formed into the flange and the other end free to flex radiallyinward and outward to engage successive ratchet teeth (14) around the outer periphery of a plug shell (12) to which the coupling nut is rotatably mounted.

Abstract: A mold for forming a plastic cap and removing a cap from such a mold. The mold comprises female and male members which, together, form a mold cavity in which the cap is formed. The female member includes an upper assembly and a plurality of cams. The cams have radial protrusions engaging the male member to form annular recesses in the cap. The cap is removed from the mold by moving the upper assembly of the female member axially and the cams thereof radially away from the cap, and then removing the cap itself from the male member of the mold. Preferably the cap is shrunk onto the male member to develop a space between the cap and the female member of the mold prior to moving the female member away from the cap.

Abstract: A top concrete section for a manhole assembly is cast with a plurality of bolt slot inserts each insert having a substantially inverted T-shaped hollow interior for slideably receiving a nut which may be moved to any desired position along the base of the insert for threadedly engaging a threaded rod employed to rigidly secure a cast iron cover frame to the top section.The method for casting a manhole top section comprises the steps of releasably mounting each insert within the mould assembly by means of a retaining slide which itself is slideably received within a pair of holding brackets provided on each of the inner and outer mould members, the insert being substantially fully closed on all sides thereof and having a top surface formed of a thin web which is easily fractured or cut away after the top manhole section is cast. The fully enclosed insert prevents any concrete from entering into the interior thereof.

Abstract: A method and apparatus for the forming of a champagne bottom plastic bottle wherein the bottom is reinforced by internal radiating ribs which are formed by solid material. The bottle is formed in the customary manner by utilizing a preform which has molded on the inner surface thereof longitudinal ribs. The preform is formed by conventional injection molding equipment which has been modified only to form along the lower part of the customary core member longitudinally extending rib forming grooves.

Abstract: A method and an apparatus for producing concrete articles, such as shaft rings, with projecting elements such as climbing irons or stirrups, by means of an automatic inserting mechanism which removes the climbing irons from a magazine and automatically inserts them into a mold core. These climbing elements are guided automatically to a core segment and are brought into housings therein during a time interval between the ejection of a completed concrete article from the mold cavity in a first working cycle and the next following work cycle in timed overlap with carried out work steps during this time interval. This automatic process takes place while the operator withdraws and takes away a completed article from the machine at the end of a work cycle and prepares the machine for the next work cycle. This leads to equally short machine cycle times for completion of concrete articles with or without climbing elements.