Abstract: A neck ring holder device intended to be used at a mould for forming glass containers (30), wherein the neck ring (41) for realizing the mouth (32) of the container can be opened and consists of a plurality of circumferential sectors (44) that can be moved apart from a closed position of the neck ring (41), in which the circumferential sectors (44) are coplanar and form a substantially continuous annular element, up to an open position of the neck ring (41), in which the circumferential sectors (44) are rotated out of said coplanar configuration, moving away from each other, about axes directed perpendicular to the direction of the axis (45) of said annular element, is characterised in that the movement of the circumferential sectors (44) from the closed position to the open position.

Abstract: Process for removing peripheral portions such as bead regions of a glass sheet including a step of pushing the glass sheet in the peripheral portion using a pushing mechanism such as a pushing bar, and corresponding apparatus. As a result of the use of the pushing mechanism, the engagement completion time for suction cups, if used, are reduced significantly. A process without using suction cups is enabled with enhanced yield. The increased process stability and enlarged process window are particularly advantageous for processing glass sheets having high flexibility.

Abstract: A process for manufacturing a hollow glass body by means of an individual section (IS) machine in a press and blow, narrow-neck press and blow, or blow and blow process, with a driving means that moves a plunger axially, to produce selected geometrical contours in a glass gob.

Abstract: A glass bottle includes a body having a closed end, a shoulder spaced from the end, a neck extending from the shoulder, and a neck finish at an end of the neck for attachment of a closure, characterized in that the neck finish and at least a portion of the neck adjacent to the neck finish have non-circular internal surfaces.

Abstract: The method for making a lens with a first convex lens surface (32) and a second lens surface (33) includes feeding a glass melt drop into a concave mold (2, 10), precise pressing both sides of the glass melt drop in the concave mold (2, 10) together with a press die (20) and immersing the press die (20) in the glass melt drop so that a supporting rim (34) with predetermined dimensions, which protrudes beyond a highest point of the second lens surface (33), is formed on the lens by glass material displaced by the precise pressing. The apparatus for precise pressing includes an upper mold part (10) a lower mold part (2) and the press die (20).

Abstract: A method of fabricating a randomly-colorized glass vessel includes gathering an initial gob of molten primary glass. A quantity of secondary-glass particles is introduced into the initial gob in order to form a particle-containing gob. The secondary-glass particles are made from a secondary glass that contrasts in color with the primary glass. The particle-containing gob is then heated sufficiently to melt the secondary-glass particles and create flows of the secondary glass within the primary glass. Once the desired flows have been created, the gob of primary and secondary glass is introduced into a vessel-defining mold. The mold is sealed and a quantity of gas is injected into the mold in order to form the gob of primary and secondary glass into a vessel.

Abstract: The invention proposes a process for the production of a container for pharmaceutical and medical applications made from glass, preferably from a borosilicate glass, wherein the container is produced by a press-blow process where the container is initially preformed in a pressing step, by making a ram press a dispensed glass drop into a mold that is open at its bottom, and where the parison so produced is given its final form by a subsequent blowing step.

Abstract: A narrow neck glass container includes a container body and a container neck finish. The container neck finish has an external closure attachment diameter of not more than 36 mm, and the container body has at least one internal embossment of predetermined geometry. The at least one internal embossment preferably comprises a plurality of internal embossments in a geometric pattern.

Abstract: A parison (12) is subjected to final blowing in a blow-mold (2) of a blow-molding station (1) to produce a finished glass container (19). The blow-mold (2) comprises blow-mold halves (3, 4) and a block mold (18) which is not divided longitudinally and which is encompassed by the blow-mold halves (3, 4) when the blow-mold (2) is closed. Compressed air (15) can be introduced by means of a blowing head (13) into the interior of the parison (12), until the finished glass container (19) has achieved its final form. In order to remove the glass container (19) from the blow-mold (2), it is grasped by its mouth (11) by means of a takeout mechanism. The blow-mold halves (3, 4) are then opened and the block mold (18) is moved downwards until it reaches a removal position.

Abstract: A method and a device whereby optical glass articles can be produced economically and can be reproduced at a high level of contour accuracy and surface quality. The cost effective press technology that is suitable for mass production is maintained, while at the same time, avoiding the associated disadvantages. A multi-phase press process is utilized whereby the final geometry of the blank is achieved iteratively. Accordingly, a pre-blank is produced from a gob of glass that is fed by way of a feeding device to a press device. The press device is a pre-press including a pre-press punch. The pre-press device produces a blank whose geometry, while coming close, does not yet correspond with the desired final geometry. This first press step is followed by a second one, whereby the pre-blank is transformed into the end product. The press process is broken down into two individual press steps.

Abstract: A method of fabricating at least one hollow glass article by implementing fabrication cycle consisting, specifically, in stretching the blank prior to inflating it by transferring the blank into a finishing mold that includes a suction cup in its mold cavity, the suction cup being movable in translation parallel to the axis of the mold over a stretching stroke between firstly an extended position inside the mold and secondly a retracted position in which the suction cup is situated at the bottom of the mold. The method includes the step of establishing suction in the suction cup prior to the bottom of the blank coming into contact therewith, thereby uniting the bottom of the blank with the suction cup while it is placed in its extended position, and then displacing the suction cup to its retracted position in order to stretch the blank.

Abstract: Vertically aligned first (30) and second (32) combined blowhead and takeout mechanisms are provided to sequentially blow glass parisons (P) into containers (C) in a mold set (22) and to transfer blown containers to a deadplate (40) of a glass containing forming machine (20). Each of the combined mechanisms is pivotally suspended about an axis A from a carrier arm (36) that is pivotally attached to an end of an oscillating arm (38), an opposed end of which is pivoted about an axis (B). The axis (B) of each combined blowhead and takeout mechanism is periodically raised and lowered to permit the other combined blowhead and takeout mechanism to oscillate therebeneath, to thereby permit overlapping cycles between the blowhead and takeout mechanisms. Each blowhead and takeout mechanism is provided with a chuck or tong assembly (54) to engage or release each container by its finish (F).

Abstract: A device and process for forming hollow glassware comprising producing solid glass blanks in a manufacturing line, storing the blanks, feeding the blanks to a manufacturing line for forming hollow glassware, preheating the blanks during the feeding step, supplying the preheated blanks to a heating stage, heating to form solid plastically deformable glass globs, transferring the glass gobs to a blow molding stage and blow molding the glass gobs supported by a bottom lifter in a blow mold.

Abstract: A blank mold valving system for supplying vacuum/counter blow air to a blank mold of an I.S. The system includes an exhaust valve displaceable between open to exhaust and closed positions, a vacuum valve displaceable between open to vacuum and open to counter blow positions, and a counter blow valve displaceable between closed and open to counter blow air positions.

Abstract: A semiconductor material having more excellent electric characteristics than polycrystalline semiconductor materials and readily formed on various kinds of substrates is provided. The semiconductor material is made of substantially single crystalline semiconductor crystal grains 3a. These crystal grains 3a are preferentially oriented in a common surface orientation, such as {100}, {111} or {110}-orientation, and grain boundaries 3b of adjacent ones of the crystal grains 3a are in substantial lattice matching with each other at least in a part thereof. In case of {100} orientation, each crystal grain 3a has an approximately square shape, and they are regularly aligned in rows and columns. In case of {111} orientation, each crystal grain 3a has an approximately equilateral hexagonal shape, and they are aligned in an equilateral turtle shell pattern.

Abstract: The present invention is directed to an apparatus and method for forming glass article from sheet glass. More specifically the apparatus comprises a mold, a plunger being cooperative alignment with the mold, wherein the mold and the plunger form a cavity exhibiting the shaped of the glass article, an outer trimmer for separating the glass article from the surrounding excess sheet glass, and an inner trimmer for forming the aperture in the glass article, and the method involves forming the aperture during the hot-forming process, therefore eliminating a post-formation step.

Abstract: A method and apparatus for forming a glass container in a blow-and-blow process. The apparatus includes an air flow controller having a housing defining a chamber, a piston disposed for reciprocal movement from a first position to a second position within the housing for moving a slide block therein, first and second passages extending through the slide block, a first port in the housing in flow communication with the second passage and a transducer when the piston is in its second position to create a negative air flow through the second passage and first port when a pressurized air flow is induced through the transducer to draw a vacuum beneath a gob in a blank mold to form a finish in the gob and sweep debris away from the gob and blank mold, and a second port in communication with the first passage and first port when the piston is in its first position to provide pressurized air to the gob.

Abstract: A forming process which utilize blown-blown technique has an initial phase, a transfer phase, and a finishing phase for producing a hollow glass object provided with a neck. During the initial phase all or part of the internal profile of the neck is molded by a mechanical element.

Abstract: A machine is provided for molding an optical element by using a molding block having upper and lower molding dies, a sleeve die and a glass blank combined integrally with each other. The machine includes a chamber which accommodates a heating zone having a plurality of sections for heating the molding block from above and below, a deformation zone for pressing the molding dies and a cooling zone having a plurality of sections for cooling the molding block. The chamber is formed with an inlet and an outlet for the molding block. The sections of the heating zone, the deformation zone and the sections of the cooling zone are provided independently of one another. A transport member is provided for sequentially transporting the molding block through the heating zone, the deformation zone and the cooling zone, and first and second shutters are provided for opening gas supply member is provided for introducing nonoxidizing gas into the chamber.

Abstract: Molding is effected while pressing pressure is continuously or stepwise controlled so that at the initial stage in which the temperature distribution of a glass blank is not sufficiently uniformized, molding may be effected with relatively low pressing pessure and in a state in which the whole of the glass blank is uniformly increased in temperature, press molding may be effected with the pressing pressure increased. In a press molding apparatus for an optical element, during press molding, the glass blank is press-molded while the pressing pressure is continuously or stepwise varied so that at a temperature whereat the glass viscosity of the glass blank corresponds to 10.sup.21 -10.sup.11 poise, molding may be started with pressing pressure of 10 kg/cm.sup.2 -100 kg/cm.sup.2, and thereafter in a temperature range in which the glass viscosity x of the central portion of the glass blank corresponds to 10.sup.11 -10.sup.10 poise, pressing pressure in the range of 10.times.(10.sup.11-x)-100+10.times.(10.sup.

Abstract: A method for manufacturing a glass fiber having a polygonal cross section is provided. According to the method, a glass fiber having an orbicular cross section is manufactured by drawing molten glass supplied into a crucible heated at higher temperatures than a softening point of glass out of a nozzle having an orbicular cross section heated at lower temperatures than the heating temperature of the crucible and at higher temperatures than the softening point of glass. Then, the glass fiber is passed through a slit of a twin roller, having a predetermined shape, whereby glass fibers having a polygonal cross section are successively manufactured. The twin roller is heated at slightly higher temperatures than the softening point of the glass.

Abstract: A gob of glass sucked from a glass metal and held in a suction mold (7) is further processed by preshaping the glass in the mold by a punch (4) having a projection (9) for forming in a recess or cavity (14) in the gob in the opening in the mold, and a plate-like surface (10) for forming a plate shaped bead (5) around the opening. This results in a large contact surface against which a blowpipe (1') with a transverse attachment plate (6) having a working surface flush with the end of the bore (3) of the blowpipe is pressed to attach the plate (6) to the bead (5). With this arrangement, the bore cannot become blocked with glass during the pressing operation.

Abstract: A method and apparatus are provided for producing an optical glass element, including displacing a gob of optical glass on a first heat working jig to a second heat working jig by making the gob of optical glass adhere to the second heat working jig due to a difference in wettability with high temperature glass between the first heat working jig and the second heat working jig. The gob of optical glass on the second heat working jig is thermally deformed to form an optical glass preform. The optical glass preform is formed under heat and pressure by using pressure molds to form an optical glass element.

Abstract: For manufacturing a glass article for precision-optical purposes, a preform is provided which is unwrought relating to the desired shape of the glass article to be manufactured and exhibits within the surface areas serving for the formation of optical effective planes a high surface quality. The preform is pressed at a sufficiently high temperature in a mold, the function layers of which, serving for the formation of the optical suitable planes are hard and wear resistant, optionally containing hard nitrides and/or carbides, being mechanically unwrought structureless thin layers coated by cathode sputtering, for example, on a working surface of the basis of the mold. At the beginning of the pressing process, the preform and at least one of the function layers of the mold exhibit a difference in temperature amounting at least to 30 K, but less than a value where inhomogeneities in and/or surface defects on the glass molding may be produced.

Abstract: A manufacturing method of a fluorescent lamp having a bent discharge path, which comprises the steps of press-molding a straight glass tube, after heating and softening it, into a bulb having a bent discharge path, while blowing a pressurized gas into the discharge path. A fluorescent lamp having a U-shaped discharge path which is integrally connected through a narrow plate. A slit is formed at least in a portion of the narrow plate adjacent to a sealing portion.

Abstract: A glass object having protrusions and/or recesses, for example a glass lid (1) with a handle (2), is produced in an IS machine by pressing molten glass from above in a mould with the cover of the mould, in a mould defined by said cover, by a shaping mould (11) and by a mouth mould (13) disposed under the shaping mould. When the glass lid is formed its handle projects downwards and lies in the mouth mould. SUbsequently the glass lid is transferred together with the mouth mould to the finishing mould (12) and is at the same time returned into a position in which the handle projects upwards in the finishing mould in which it is cooled supported by the finishing mould.

Abstract: According to a method of molding a glass body, a glass preform is placed between upper and lower molds of a mold assembly. The mold assembly is then heated to a predetermined heating temperature falling within a heating temperature range corresponding to a glass viscosity range of the glass preform of 10.sup.8 to 10.sup.10.5 poise. A pressure high enough to mold the glass preform is applied between the upper and lower molds when the glass preform is at the predetermined heating temperature, so that an unfinished glass molded body is formed. The pressure is released, and the unfinished glass molded body and the mold assembly are gradually cooled to a temperature within a glass viscosity range of 10.sup.11.5 to 10.sup.14 poise while the unfinished glass molded body is held in the mold assembly. A glass molded body is then released from the mold assembly.

Abstract: In a pressing machine for the manufacture of glass articles, which comprises, a base; a gyratory table composed of mold supporters equidistantly laid out around the table, thereby carrying the molds from one station to the next as the table gyrates intermittently, said table comprising a number of stations, among which are stations of charging, stations for pressing and cooling articles, extracting stations and stations for the cooling of the molds, wherein such stations includes a series of mechanisms; means to drive the rotating table coupled to said table to rotate the same; and a feeder in combination with said machine which provide a gob of glass to the station of charging by each cycle of the machine, a method and an apparatus is provided to controlling the cycle of operation of the machine and the operation of the diverse mechanisms including: a sensor to determine the instant in which a gob of glass is cut from said feeder and position sensors to detecting the real position of the diverse mechanisms o

Abstract: A method for molding calcium phosphate type glass, which comprises pouring a melt of calcium phosphate into a mold, and cooling and solidifying it, wherein the mold contains boron nitride at least at the surface thereof.

Abstract: In a method for the mechanized processing of vacuum molded glass lumps, particularly of heavy glass lumps which could hitherto be further processed only with a large outlay in personnel, the preliminary blowing and the transport of the glass lump to the marver, to the heating oven and to the fashioning station, the final blow-out and the transport to the lehr are all carried out by means of a manipulator. This manipulator has a turntable mounted on a driveable undercarriage, a blowing iron arranged in a holder device, a unit for rotating the iron about its longitudinal axis, an arm for pivoting the blowing iron about an axis at right angles to its longitudinal axis, an air supply system for inflating the glass lump, a two-part marver for supporting the glass lump and operating elements for controlling the drives.

Abstract: A method and apparatus for manufacturing glass bottles and more specifically an apparatus and a method for forming parisons is disclosed. At least one blank mold defines a mold cavity having an opening at its upper end for receiving a premeasured gob of molten glass from a loading cavity member. A plunger having a volume of at least 15% of the volume of the mold cavity is completely extended into the mold cavity prior to the reception of the molten glass. The molten glass is moved downwardly from said loading cavity member into the mold cavity. Fluid force presses the molten glass against the walls of the mold cavity and against the extended plunger. The opening in the mold is closed by a baffle and the plunger retracted. Compressed air is applied through the neck of the parison to expand the parison outwardly against the mold cavity and a mold surface defined by the baffle means. The parison is then separated for further processing in the bottle making operation.

Abstract: A method of forming parisons in machines for making glass bottles which includes introducing a gob of molten glass into a blank mold, moving a cavity plunger to form a parison cavity and subsequently subjecting the gob to a predetermined pressure separate from the cavity plunger to apply pressure urging the molten glass into conformity with the mold.

Abstract: A method of forming glass bottles from a short parison is disclosed, which method includes the steps of mechanically elongating the parison in a blow mold to an extent that the exterior bottom of the elongated parison is near, but not at, the bottom of the blow mold cavity and subsequently expanding the elongated parison by vacuum on its exterior and/or by air pressure on its interior, and finally removing the blown bottle from the blow mold.

Abstract: A glassware handling system transfers formed articles of glassware from a blow station of a glassware forming machine to conveying means and comprises two heads each of which is capable of releasably holding a plurality of articles of glassware. The heads are supported for reciprocatory movement in a carriage which is movable to allow the heads to remove the glassware from the blow station in turn, whereby the transfer of formed articles of glassware from the blow station to the conveying means is shared between the two heads, thereby enabling a high rate of transfer to be achieved.

Abstract: A process and apparatus for the manufacture of large glass containers, comprises preparing a glass gob of a predetermined weight in an automatic mechanical feeder and feeding it to a first preparatory mold at a predetermined frequency. A parison is formed in the preparatory mold, at the same frequency, the parison comprising a finished mouth of the glass container to be formed. The parison is then transferred to a second, prefinishing mold, and, at the same frequency, a prefinished parison is formed. The prefinished parison is transferred to a third, finishing mold, and, at a frequency in a ratio of from 1:1 to 1:4 of the predetermined frequency, the finished glass container is formed. The expansion of the prefinished parison is controlled by the action of compressed air conveyed to the interior of the parison from its mouth.

Abstract: A transparent, electrically conductive film of tin oxide is formed on the inner surface of tubing or blown glassware by dispensing therein a solution containing tin chloride and hydrofluoric acid. The solution is dispensed while the glassware is being formed and while the glass is in a softened state.

Abstract: Glassware forming apparatus includes a turret mounted for rotation about, and projection along, a vertical axis. First, second, third and fourth arms are rigidly mounted on said turret to extend horizontally and radially outwardly. The first arm supports a first neck ring. The second arm supports a second neck ring. The third arm supports a first blow head. The fourth arm supports a second blow head. The apparatus further includes a parison mold and first and second blow molds. Each of the blow molds is divided into two mold portions joined along a vertical hinge. The axes of the blow mold hinges extend generally parallel to the turret axis.

Abstract: Glassware forming apparatus includes a first arm for supporting a first neck ring and a second arm for supporting a first blow head. The first and second arms are supported from a vertical column for projection along its axis and for independent pivotal movement about the axis. The apparatus also includes a parison mold and two blow molds. Each of the blow molds is divided into two portions, the portions of each mold being joined at a hinge. The axis of each hinge extends generally parallel to the column axis. Apparatus is provided for opening and closing the molds, and for pivoting and projecting the first and second arms to convey glassware blanks supported by the neck ring alternately to the two blow molds from the parison mold, and to move the blow head between the two blow molds to blow the glassware blanks into articles of glassware.

Abstract: Glassware forming apparatus includes a parison mold, a blow mold, a pair of neck rings for supporting glassware blanks, first and second invert arms for supporting the neck rings and first and second arbors for supporting the first and second invert arms, respectively. The invert arms support their respective neck rings for movement in a common vertical plane. The axes of the arbors extend generally parallel to one another and generally perpendicular to the common plane. The molds have parallel vertical axes lying in said common vertical plane. Apparatus is provided for shifting the arbors such that their axes move toward and away from one another during an operating cycle. Apparatus is provided for pivoting the arbors about their axes to move the neck rings in invert and revert arcs between the parison mold and the blow mold.

Abstract: A decorative pattern is formed on the inner surface of the blow molded glass article by imprinting the pattern on the surface of the glass gob by means of a die having the pattern formed thereon and subsequently blow molding against the imprinted surface.

Abstract: A method wherein the material for manufacturing the fitting is supplied into the mold to the point of intersection of its side channels which are arranged substantially horizontally, and pressing is performed simultaneously in all of the above channels of the mold.

Abstract: Method for forming glass containers by the blow and blow process in which a parison mold having a plurality of cavities is centrally positioned relative to a pair of blow molds having a plurality of cavities. The parisons are formed with their necks down in the parison mold from a charge of glass delivered to each cavity. Vacuum is applied to the neck area of the mold to form the finish portion of the container. A neck pin is pulled and air under pressure is fed to the interior of the area from which the neck pin is drawn to expand the glass within the parison mold at a continuous rate until the glass within the parison mold comes in contact with a baffle which closes the upper end of the parison mold. The parison mold is then opened and the parisons are transferred alternately from the parison mold to the blow molds where they are expanded into final shape. During the transfer of the parisons from the parison mold to the blow mold, air under pressure is maintained within the hollow interior of the parison.

Abstract: A method for producing one-material optical fibers having at least one light conducting component supported in a protective sleeve or casing characterized by forming a one-piece blank having an open cross section by either pressing, continuous casting, chill casting or rolling, working the blank to close the cross section, heating the blank with the closed cross section to a suitable temperature for drawing and drawing the blank with the closed cross section into the one-material optical fiber having a closed cross section. Preferably, the protective casing during the step of forming is formed in two casing components having edges extending along the length of the blank and spaced apart and the step of working the blank forces the edges into engagement with each other to form a closed cross section.

Abstract: An improved method is disclosed for forming glass bottles by the blow and blow process. A parison mold having a one-piece annular blank mold section and split neck and shoulder mold sections is charged fully with molten glass. Air is subsequently blown through a manifold covering the upper end of the parison mold to force the molten glass into an annular space defined by a cavity in the neck mold section and a neck pin projected into the neck mold cavity. The neck pin is then reciprocated from the neck mold cavity, and air is blown through the molded neck to cause the molten glass to chill its surface by pressure contact with the inside of an upright truncated pyramidal-shaped cavity formed in the blank mold section. The glass which comes into contact with the cavity walls in the blank mold section develops a very uniform enamel due to the uniform cooling achieved with the solid annular blank mold section.