Abstract: A mold for forming a waterproof cable has wire introducing openings 3a, 3b at both ends and a cavity 7 for loosely receiving a plurality of wires. Ridges 35a, 35b, which extend in such a transverse direction relative to a wire insertion direction, are arranged on an inner surface 7a of the inner space 7. Thereby, the mold for forming waterproof cables can provide an improved waterproof structure of the electric wire bundle.

Abstract: A printed wiring board with either a pin grid array, a ball grid array, a land grid array, etc. of electrical contacts is prepared with a heat sink attached in the usual manner. A passage is provided either in the printed wiring board or in the heat sink so that during the transfer molding process, fluid molding compound passes latitudinally under the heat sink into a cavity below the heat sink. The mold is provided with a biased plug that exerts pressure on the heat sink or printed wiring board to prevent molding compound from covering the heat sink. The biased plug also accommodates variations in the thickness of the printed wiring board.

Abstract: A loudspeaker cone assembly having a generally conical cone body and an annular flexible suspension rim. In making the cone assembly, a cone body having an outer free edge is placed within a female mold having an annular channel configured to form the suspension rim with the free outer edge of the cone exposed to the channel. A predetermined quantity of liquid plastic foam is deposited into the channel which is then substantially closed by a male die so as to seal off the cone body adjacent its outer free edge. The foam is then expanded and cured so that the resulting annular rim is integrally impregnated into the free outer edge of the cone body and forms high density closed-cell outer skin surfaces on opposite sides of a low density closed-cell inner core to provide a suspension rim having improved flexibility, strength and durability. A color coating may be applied to selective exposed surface areas of the suspension rim.

Abstract: A molding apparatus having an upper mold, a lower mold, and a cylindrical mold cavity defined between the upper mold and the lower mold and adapted to receive a molding material such as epoxy resin. An annular recess is defined in the lower mold adjacent to the mold cavity. A gasket is fit in the recess and made of lead. An oil passage is defined in the lower mold. Silicon oil as a pressure medium is fed to the recess through the oil passage so as to press the gasket against the upper mold. Then, the gasket is deformed to form a seal around a portion of the mold cavity where the upper and lower molds mate with one another. An annular spacer is placed in the bottom of the recess. An annular groove is defined below and along the bottom of the recess so as to allow the silicon oil to flow below and along the annular spacer, whereby sufficient pressure is exerted uniformly on the gasket to cause deformation of the gasket.

Abstract: Molds for use in making end moldings for high-voltage cables are described wherein the dielectric insulator of a cable is heated and molded to conform to a desired shape. As a consequence, high quality substantially bubble-free cable connectors suitable for mating to premanufactured fittings are made.

Abstract: A method of making a quartz dome for a reactor chamber from a substantially flat quartz disk. The quartz disk is placed on a graphite ring which is rotated. The quartz disk is heated until the disk is softened slightly and it begins to slump. The softened portion of the disk is drawn by a change in pressure to contact a fixed wiper blade. The wiper blade controls the size and shape of the deformation of the quartz disk to form the dome surface.

Abstract: A molding equipment for making composite molded article having:(a) a fixed side mold having a convex portion integral with a gate; the convex portion being formed according to the shape of the molded article; the gate being used for injecting melted resin into a resin molding space;(b) a movable side mold capable of being moved close to and away from the fixed side mold; the movable side mold having a concave portion; the concave portion being joined with the convex portion of the fixed side mold (1) to form the resin molding space when the molding equipment is clamped;(c) a set of slide cores being mounted between the fixed side mold (1) and the movable side mold; the slide cores being movable toward and away from the fixed side mold; and(d) a skin material setting frame being mounted between the fixed side mold and the slide cores; the skin material setting frame being capable of setting a skin material.

Abstract: A method and apparatus for preparing tissue samples for subsequent slicing in a microtone, utilizing a thermally transmissive body and removable mold heads to facilitate encapsulation of tissue samples in a gelatinous substance so that the samples may be selectively oriented for proper slicing in the microtone.

Abstract: A device for molding a buffer cap at the same time of fixing the cap to the bristle base implanting head of a toothbrush body preform. In the buffer cap molding and fixing device, a stationary molding plate is coupled to a mounting plate by a stop rod such that it is limited in its moving distance. The stationary molding plate has a plurality of sprues aligning with a plurality of gate holes. The bottom surface of the stationary molding plate has a plurality of top cavities, communicating with the sprues through their respective gates and each having a wider section provided with a pair of holding projections for holding a toothbrush body preform. The gates are formed at necks of the top cavities respectively. A back up plate is interposed between the stationary mounting plate and the stationary molding plate. A core plate comes into contact with the stationary molding plate at a parting plane. The top surface of the core plate has a plurality of bottom cavities corresponding to the top cavities.

Abstract: Multiple, typically 5+, trays of an identical special configuration are vertically stacked one atop the next, end-to-end reversed. Each tray has an overflow feature, normally in the form of either (i) a portion of a side that is reduced in height so as to form a lip, (ii) a corner hole protected by a removable baffle of selectable height, or (iii) a threaded standpipe that may be screwed to variable height. The overflow feature permits that liquid will overflow each tray only upon reaching a predetermined height in a reservoir of the tray. A liquid poured in the top tray cascades downwards from tray to tray, filling each tray to a uniform even level and ultimately reaching the bottom tray of the stack. The liquid that is within each tray is permitted to gel, forming thereby a gel state material that is suitable to receive samples upon which electrophoresis may be conducted. Combination spacer and toothed comb elements are optionally inserted between the stacked trays.

Abstract: A mold for joining a molded portion onto an end of an extruded weather strip without having any looseness in the joint formed therebetween, and which facilitates removal of a fin formed in the molded portion. The mold includes mold members defining a cavity at an end of which an end of the extruded weather strip is placed, and to which a molding material is injected. The mold members further define a tunnellike additional cavity in a parting plane therebetween. The tunnellike additional cavity extends along a peripheral edge of the cavity so that an end thereof is located at the position beyond the end of the extruded weather strip. A passage is also defined in the parting plane so as to interconnect the cavity and the tunnellike additional cavity for introducing a molding material into the tunnellike additional cavity. The passage extends to a position close to but not beyond the end of the extruded weather strip.

Abstract: A cover for an air bag unit is disclosed having a patterned tear seam therein defined by an integrally bonded, thermoplastic filler strip as the cover material and comprising a material having properties different than that of the cover material, Apparatus for forming the cover includes a thin shell mold having an inner surface that is heated to melt thermoplastic material cast thereon, A powder box adapted to contain thermoplastic material therein for distribution onto the thin shell mold carries a gasket having a shape corresponding to the tear seam shape. The powder box and gasket are adapted to be connected to the thin shell mold for forming a sealed footprint on the inner surface during distribution of the cast material against heated surface portions of the thin shell mold to form a thermoplastic cover with an opening therein that have the tear seam pattern, The opening is later filled with the lesser strength thermoplastic material to form an integrally bonded thermoplastic filler strip.

Abstract: Apparatus for the preparation of optical ferrules containing cylindrical members is disclosed. The apparatus utilizes guide means receiving the cylindrical member, a sleeve receiving a piston therethrough, and a pin extending into the sleeve. The apparatus also includes biasing means to position the piston, fill gates to dispense polymer into a defined cavity, and containment means which secure the apparatus components together. Injection molded optical fiber ferrules made according to the apparatus and process disclosed exhibit superior properties.

Abstract: A mold for forming coreless armatures having an upper mold and a lower mold. The lower mold has a mold cavity for receiving a shaft capable of supporting windings of a coreless armature. An elastic ring plate is placed between the upper and lower molds and is adapted for being compressed therebetween. The elastic ring plate is further adapted to contact terminal ends of the windings as they extend outside of the mold cavity, and to seal said mold cavity with the terminal ends extending therefrom.

Abstract: A mold for making bathtubs includes a mold receptor and a deck insert attached to the mold receptor face. The preferred deck insert has at least one projection designed to reduce the cross-sectional area of a portion of a void between the shell's deck and the deck forming face of the insert. Preferably, the distance from the outer edge of the shell's deck to the outer edge of the projection is about 16% of the length of the deck of the sanitary fixture. In an alternative embodiment, the deck insert has at least one outermost projection and at least one non-outermost projection. The outermost projection is preferably about half the height of the non-outermost projection. In another preferred embodiment, the deck insert includes at least one outermost projection and at least one non-outermost projection. The height of the outermost projection varies from a maximum height near the middle of the deck, to a minimum height near the end of the deck.

Abstract: A molding machine includes a mold composed of lower and upper mold sections. A recess is defined in the lower mold section to receive a lead frame or other objects. The lead frame is sandwiched between the upper and lower mold sections. A mold cavity is defined in the lower mold section below the recess so as to receive a thermosetting resin or encapsulant. A gasket groove is defined adjacent to the mold cavity to receive a gasket. The gasket is subject to plastic deformation upon application of force. An oil chamber is communicated with the gasket groove and contains hydraulic oil. The hydraulic oil is pressurized to urge the gasket against the lead frame. As a result, the gasket is so deformed as to closely contact the surface of the lead frame and seal the mold cavity. The hydraulic oil is preferably mixed with thermoplastic resin in powder form.

Abstract: A container is provided with an outlet opening and an annular insert embedded in the container at the opening. The insert surrounds the opening and includes an inner circumferential surface that is exposed within the opening. The synthetic resin material of the body surrounds the insert except for the inner circumferential surface so that the insert is substantially embedded in the body at the opening. The inner circumferential surface of the insert is threaded to receive an outlet coupling, and seats are defined between the insert and the interior and exterior of the container. A mold is also provided for forming a container within which an insert is embedded. The mold includes an insert assembly having a support and a heat sink which are able to shear free from one another during cooling of the container within the mold.

Abstract: An electric circuit wire clamping device of the injection molding machine includes mainly a clamping block, a clamping block cover plate, a cylinder and two push rods. The clamping block Is provided with a bevel slot. The clamping block cover plate is provided with a bevel holding block for holding securely the conducting wire of an electric circuit intended to be housed. The cylinder serves to actuate the two push rods so as to cause the bevel holdeng block of the clamping block cover plate to hold firmly the conducting wire of the electric circuit at the time when the injection molding process of housing the electric circuit is under way.

Abstract: A die-stamped frame is fastened to a heat sink metal baseplate by wedging flexible tabs into receiving indentations of the baseplate while keeping the frame substantially in contact with the surface of the baseplate. The wire welding operations may then take place on the end of the fingers of the patterned metal frame while the same are solidly resting on the surface of the baseplate thus facilitating the welding. The backing-off of the metal frame from the surface of the heat sink baseplate takes place upon the closing of the mold used for encapsulating in resin the device. The injection of the resin and its solidification "freezes" the pins in the backed-off position imposed by the mold upon closing, thus ensuring the electrical isolation between the pins and the integral heat sink baseplate.

Abstract: Method and apparatus for rotationally casting a plastic tank liner having a molded-in access fitting and for ensuring a uniform thickness of plastic in the wall of the liner and on the fitting. A hollow mold having a mold cavity surface conforming to the surface of the liner is provided. An access fitting is removeably mounted on the mold so that the interior surface of the fitting may be coated with the molding plastic and so that the molded liner and the filling may be removed from the mold as a unit. The mold is rotated about orthogonal axes while the mold is heated to a resin liquifying temperature. Additional heat is supplied to the fitting at a rate proportional to the mass of the fitting so that the temperature of the inside surface of the fitting is increased at a rate substantially corresponding to the inside surface temperature of the mold.

Abstract: A method and apparatus for forming runners (47, 56) in a mold assembly (10, 50). The mold assembly (10, 50) has a cavity plate (11, 51) and a sealing plate (12, 52). The sealing plate (12, 52) has a sealing plate cavity (18) in which a resilient material (14) is placed. A floating seal (13) is movably mounted to the sealing plate (12) such that the floating seal (13) is on the resilient material (14). A workpiece (19) is placed on the resilient material (14) and the cavity plate (11, 51) is mated with the floating seal (13) thereby forming the runners (47, 56). The resilient material (14) imparts a force on the floating seal (13) and pushes the floating seal (13) against the cavity plate (11, 51) to prevent leakage of encapsulating material from the runners (47, 56).

Abstract: A directed fiber, directed energy process provides both a method and an apparatus for making structural preforms. Fibrous reinforcement material is chopped into short lengths of fiber and propelled toward a perforate mold part. During propulsion and/or after deposition on the perforate mold part the fibers are sprayed with an electromagnetic radiation-curable binder. The binder-carrying fibers are held on the perforate mold part by a flow of air in that the perforate mold part is rotatably mounted in a plenum which provides an air flow therethrough. Rotation of the perforate mold part and scanning action of the fiber and binder propelling mechanisms effects even and complete coverage of the perforate mold part. After a mat of the chopped fibers has been applied to the perforate mold part, a conforming second mold part closes the mold and presses the fibers to replicate the shape of the three-dimensional rigid preform.

Abstract: An elastomeric seal used in molding articles is disclosed. The seal has a first lateral cross-sectional dimension larger than the opening of a seal groove and at least a second lateral cross-sectional extending beyond the opening of a seal groove which is smaller than the lateral cross-sectional dimension at the opening of the seal groove. The elastomeric seal is releasably retained in the seal groove and provides an improved molding cavity for molding articles such as sanitary fixtures, i.e., tubs, whirlpools, spas, etc. Also disclosed, is a molding apparatus including the elastomeric seals useful in molding sanitary fixtures.

Abstract: An apparatus for encapsulating an integrated circuit lead frame in plastic is disclosed. This apparatus includes an upper mold and a lower mold which, when properly joined together, define the package area of the lead frame as well as a reservoir for the molten plastic and a conduit and flow pocket for assuring uniform flow of plastic into the package area of the molds. The integrated circuit lead frame has a flow hole to allow the molten plastic to flow from the conduit into the flow pocket and into the bottom portion of the package area. The conduit also allows the molten plastic to flow directly to the top portion of the package area. With the plastic being more uniformly injected into both (top and bottom) package or cavity areas at once, the likelihood of air pockets, and to overcome wiresweep cavities and other imperfections in the final plastic package is reduced.

Abstract: The present invention is directed to a system for providing an embedded tissue specimen subsequent to fluid treatment of the specimen and preparatory to histological examination. The system includes the combination of a cassette for use in the preparation of tissue specimens for histological examination and an embedding mold having a first cavity for receiving the treated specimen and a second cavity for receiving the cassette in an interlocked position overlying the first cavity.

Abstract: A concrete pipe making machine having a vibrating core and counter-rotating roller head is used to form a concrete pipe within a form. A concrete pipe reinforcing cage located within the form is held in spaced relation relative thereto with a plurality of cage positioners. Each cage positioner has a moveable blade connected to a piston and cylinder assembly operable to move the blade to a cage holding position and a blade retracted position out of engagement with the cage. The piston and cylinder assembly has a cylinder with a internal chamber having a rectangular cross section. A rectangular piston within the chamber is secured directly to the blade.

Abstract: Disclosed is an apparatus which allows for selective employment of a plurality of collapsible support cores to provide shoring support to the interior walls of cabinets during insulating thereof. The cores can be selectively interchanged to utilize a core which corresponds to the size and shape of the particular cabinet to be insulated. Each of the support cores are insertable into the interior section of a cabinet and expanded therein to position a plurality of shoring panels, including separate corner shoring panels, into supporting engagement with the interior walls of a cabinet during insulating to prevent bulging of the interior walls associated with the insulating. After insulating, the core panels are retracted away from the cabinet interior walls so that the core can be inserted into and removed from the cabinet interior without contacting the interior surfaces during insertion nor removal.

Abstract: An apparatus used in connection with the construction of a duroplastic, fiber-reinforced article a fibrous web which includes continuously impregnating the web under subatmospheric pressure with a liquid, curable resin composition whose viscosity is gradually increasing. The prepreg thus obtained is covered on both its major surfaces by thin polymer sheets, then cut into the desired length, vacuum molded, pre-cured in the mold and finally cured outside the mold. Construction parts, car parts and boat bodies may thus be produced.

Abstract: An apparatus for producing a longitudinal multi-component frame element includes a longitudinal mold within which is positioning at least one longitudinal member to form a first component of the frame element. A second component of the frame element is formed by introducing into the mold a foamable and curable material such as polyurethane which cures to form a rigid plastic component connected to the longitudinal member. Before formation of the rigid plastic component, the longitudinal mold is bent in a direction opposite to a direction of anticipated warping of the frame element that would be caused by internal stresses therein. Thus, the frame element initially is formed within the mold to be of a bent configuration, and after removal of the frame element from the mold, the internal stresses transform such initial bent configuration into a straight or rectilinear configuration.

Abstract: An adjustable sealing system for use in a molding apparatus is disclosed. The molding apparatus is used for applying a coating of polymeric material to the surface of a shell. The molding apparatus includes a molding surface and a seal groove adapted for retaining a seal. The molding apparatus is capable of receiving a shell and forming a molding cavity between a surface of a shell and the molding surface. The seal establishes sealed contact between the shell and the molding surface when the molding apparatus is closed. The adjustable sealing system includes a seal for insertion and retention in a seal groove of the molding apparatus, so that a portion of the seal extends from the seal groove to a selected height when the molding apparatus is open. A seal height adjustment means is disposed under the seal in the seal groove. The seal height adjustment means is capable of adjusting the height of the seal above the seal groove to correspond to a particular contour of a shell being molded.

Abstract: A molding system for molding a plastic grip member and, at the same time, linking it to a linking protruding piece of a container closure body. The molding system comprises a rotary container closure body conveyor apparatus and a compression molding apparatus. The container closure body conveyor apparatus is provided with a rotary disc that has a plurality of container closure body-receiving portions formed therein and a rotation preventing mechanism that prevents the rotation of the container closure bodies held in the receiving portions. The compression molding apparatus has a mold constituted by a first mold portion and a second mold portion. The first mold portion includes a moving member that moves between a mold position and a separated position. The moving member has a supporting surface for supporting the skirt wall of the container closure body and a support projection for supporting the linking protruding piece of the container closure body.

Abstract: A head unit for a semiconductor lead frame leader including a vertical operating portion, a clamping portion having two pairs of jaws for clamping the lead frame and with the clamping portion interlocking with the vertical operating portion, a fixing portion with a pair of jaws secured thereto, an adjusting portion with a pair of jaws secured thereto for adjusting the distance separating each pair of jaws in order to accommodate different sizes of lead frames and which interlocks with the adjusting portion upper plate is disclosed.

Abstract: A skin or shell is disclosed for use in a mold process in which the skin or shell is placed in a mold in which foam precursors are directed onto the skin for reaction thereagainst to form a foam layer thereon; the skin includes integral connector features thereon adapted to be connected to the mold for stabilizing the location of the skin within the mold so as to prevent wrinkling of the skin during the mold process.

Abstract: A mold, adapted for resin transfer molding of composite articles, that has a seal for maintaining a vacuum resulting in denser composite parts. A mold body has at least two openings including an opening for removing the article therethrough. There are at least two mold closures adapted for closing the openings and two of the mold closures are in mutual contact within the interior of the mold. A seal is disposed between each closure and the mold body for sealing each mold closure to the mold body to continuously seal only a single surface. The mold has an improved seal for initiating and maintaining a vacuum thus reducing part porosity.

Abstract: The retractable pin for an injection mold machine used for molding golf balls has a frictionless bushing means affixed at its outer end which is slidable along a shaft. The shaft and the frictionless bushing means are coaxial and perpendicular to the retractable pin. The pin head is shaped substantially like a dimple.

Abstract: A mold for making bathtubes is disclosed. The mold includes a mold receptor and an insert attached to the mold receptor face. The mold receptor receives a shell which has a finish side and a non-finish side. The shell is placed in the mold receptor leaving a void between the non-finish side of the shell and the face of the receptor. The insert is attached to the face of the mold receptor to reduce the cross-sectional area of a portion of the space between the shell and mold receptor face. A male mold engages the finish side of the shell, sealably retaining the shell to the mold receptor. A polymeric foam material is introduced into the void between the receptor and the shell. The polymeric material fills the void and coats the shell. The molded bathtub is then removed from the mold receptor after the male mold has been removed. The insert is then removed leaving an area of reduced thickness and a periphery on the non-finish side of the molded bathtub which defines a lip.

Abstract: A mold for skin covered foamed plastic molding which utilizes a middle mold to be placed between an upper mold and a lower mold, capable of reducing the weight of the middle mold so that assembling of the middle mold becomes less troublesome, the assemblage becomes more stable and the appearance of undesirable spacing in the assemblage an be prevented. The mold includes an upper mold to be closed over the lower mold, having a bent portion with a bottom surface which is to be a part of molding surface; and a middle mold to be placed between the upper mold and the lower mold, having a hollow region into which the bent portion of the upper mold is to be engaged when assembled.

Abstract: A solid-state image pickup device comprises a semiconductor chip, a package with a recess in which said semiconductor chip is fixed, and a transparent protective member for protecting an image pickup surface of the semiconductor chip and guiding a light image onto the image pickup surface. The transparent protective member includes a transparent resin layer for covering the image pickup surface and the upper surface of the package without forming a space therebetween, and an incident surface formed on the resin layer in parallel to the image pickup surface. A method manufactures a solid-state image pickup device having a construction described above by using a mold.

Abstract: A mould for moulding the moulded product is also provided which includes a bottom and side wall formation surrounding the bottom proximate the periphery of the bottom, the bottom carrying on its surface a design to be carried by the moulded product, the bottom being separate from the side wall formation so that the side wall formation can be spaced from the bottom and be lowered to engage the bottom proximate the periphery of the bottom. The bottom may be one piece or may include a base supporting a tongue moveable to a raised position for receiving a bag or sack of material for the purposes of injecting foamable thermoplastics material onto the bag or sack.

Abstract: A mold for skin covered foamed plastic molding which utilizes a middle mold to be placed between an upper mold and a lower mold, capable of avoiding an excessive amount of pressure to be exerted on the upper portion of the lower mold so that the durability of the lower mold can be improved, and preventing gaseous leakage so that the penetration of the liquid foam resin to be poured on a skin cover becomes controllable. The mold includes an upper mold to be closed over the lower mold, having extended side portions which can reach the base of the lower mold when assembled such that the extended side portions can support the upper mold by themselves.

Abstract: A mold for manufacturing a skin covered foamed plastic seat capable of structually preventing the leakage of the liquid foam resin from a space between the skin cover and the bossings provided on the mold for the holes to be made on it. The mold includes a lower mold over which a sink cover is to be placed, having a protruded portion to be inserted into a hole on the skin cover corresponding to a hole to be made on the skin covered foamed plastic seat, the protruded portion having a circumference smaller than that of the hole on the skin cover, and the upper mold to be assembled with the lower mold, having a bossing for making the hole to be made on the skin covered foamed plastic seat, the bossing having a concavity to be engaged with the protruded portion of the lower mold at a bottom, and a circumference larger than that of the hole on the skin cover.

Abstract: A plunger (10) for supporting a wall (46) of e.g. a refrigerator door against deformation from an expanding, and hardening foamed plastic (52) on the other side of the wall. An evacuated bag-formed part (18) filled with a particulate material (20), has a surface (42) showing an impression of the form of the wall (46). The plunger (10) is reshapable, so that it can serve as a plunger for walls (46) of different forms.

Abstract: This invention relates to a mold for making a formed chair arm with passages therein.

Abstract: A transfer and molding apparatus for transferring an image or pattern from an elongate transfer film to a molded article. The transferring and molding apparatus includes a film feed-out mechanism for feeding the transfer film wound around a supply drum and introducing the transfer film between a stationary mold member and a movable mold member and a film take-up mechanism for taking up the transfer film positioned between the stationary mold member and the movable mold member onto a take-up drum. A longitudinal direction feeding device has a controlling motor for feeding the transfer film in a longitudinal direction thereof from the film feed-out mechanism toward the film take-up mechanism by a predetermined length during each molding cycle, and a longitudinal direction sensor for detects a position setting mark on the transfer film.

Abstract: An apparatus is provided for the integrated vacuum forming/reaction injection molding of a shaped polymeric laminate article, e.g., an item of sanitary ware such as a bathtub or a motor vehicle body panel, possessing a vacuum formed thermoplastic resin cosmetic layer bonded to a thermoset resin backing layer. In a preferred embodiment, the exposed surface of a vacuum formed preform is treated within the cavity of a sealed reaction injection mold, e.g., by plasma or chemically reactive gas, to modify the polymeric structure of the resin at such surface without affecting the bulk properties of the resin and thereby improve the adherent property of the preform for the subsequently formed theremoset resin layer.

Abstract: Method and apparatus are disclosed for injection molding an article having at least one sub-surface portion. The apparatus includes an article mold having at least one cavity with a wedge-receiving aperture and a wedge insertable within the wedge-receiving aperture for receiving the sub-surface portion of the article. The wedge is movable between a wedged position, wherein the wedge is firmly seated within the wedge-receiving aperture and an unwedged position, wherein the wedge is movable with respect to the article mold to free the sub-surface portion of the article when ejecting the article from the cavity. The sub-surface portion of the article can include a part to be held within the cavity during injection molding, or an injection molded portion of the article forming a normally die locked portion of the article. The apparatus can also include a multi-piece mold cavity removably engageable within aligned apertures of a separable mold base.

Abstract: This invention provides a cassette for pathological tissue examination which consists of a container proper and a lid thereof engageable therewith and detachable therefrom both made of a chemical-resistant synthetic resin, wherein the aforementioned container proper has a plurality of sample chambers independent and separated from one another when the container proper is closed, a large number of small through-holes are made in the bottom of the container proper having the aforementioned sample chambers formed therein and the lid, and either or both of the container proper and the lid is/are provided with a recording space in which the name, serial No. et cetera of the examinee can be written or otherwise recorded.

Abstract: A tool for holding threaded inserts in a rotational mold includes a stud which projects within the mold cavity and which has a diameter substantially equal to the minor diameter of the threads of the insert. A spring loaded detent on the stud is received by the internal threads of the insert for holding the insert firmly against the inner wall of the mold yet permitting simple removal of the molded part. A retractor mechanism for using the tool with threaded inserts placed across the axis of removal of the molded part, is also taught.

Abstract: A method of preparing window glass provided with a gasket at a peripheral portion of a glass sheet for a window includes placing a glass sheet in a shaping mold which has two mold parts to provide an inner cavity in which resilient sealing members are attached respectively to the two mold parts so as to come in contact with surfaces of the glass sheet so that a gasket forming cavity is formed at a peripheral area of the glass sheet by the cooperation of the inner cavity of the shaping mold, the resilient sealing members and the glass sheet. The resilient sealing member is then pushed to the contacting surface constituted by the resilient sealing member and a part of the shaping mold in the inner cavity via a pushing means after the assembling of the shaping mold and the glass sheet. A gasket material is then injected into the gasket forming cavity to form a gasket.

Abstract: A process for manufacturing moldings of plastic material includes successive cycles of conveying a succession of mobile molding tool parts independently of each other along lateral and vertical guideways of a conveyor to a work station holding a basic molding tool part.