Abstract: During the glass bottle forming process a pair of arms is used to form the bottle one after another is rapid succession; a bottle is formed in a glass machine in approximately three to four seconds. The machine is exposed to extremes in temperature as well as extremes in pressure. One of the chief issues with the operation of this machine are the interruption of use of the machine if the machine should fail or begin to produce defective bottles. Any shutdown of the machine leads to disruption in production and is unwelcome.

Abstract: A parison mold assembly for a press-and-blow glassware forming machine includes a neck ring for molding a finish portion of a parison, a parison mold for molding a body portion of the parison, and a plunger for insertion through the neck ring into the parison mold for pressing a hot glass gob against inner surfaces of the neck ring and the parison mold. The plunger has an outer surface of revolution around a central axis, including a first portion disposed within the neck ring when the plunger is fully inserted through the neck ring into the parison mold, a second portion spaced from the first portion, and a transition third portion extending between the first and second portions.

Abstract: A parison mold assembly for a press-and-blow glassware forming machine includes a neck ring for molding a finish portion of a parison, a parison mold for molding a body portion of the parison, and a plunger for insertion through the neck ring into the parison mold for pressing a hot glass gob against inner surfaces of the neck ring and the parison mold. The plunger has an outer surface of revolution around a central axis, including a first portion disposed within the neck ring when the plunger is fully inserted through the neck ring into the parison mold, a second portion spaced from the first portion, and a transition third portion extending between the first and second portions.

Abstract: A baffle assembly for controlling settle blow air delivery to a blank mold of a glassware forming machine, includes a baffle head, a holder and an outer ring. The baffle head has an air impervious base, a conical outer surface and an annular face. The holder has an air passage that opens at a position outside of the baffle head base. The outer ring has a first portion that slidably surrounds the holder, a second portion that surrounds the baffle head and has a conical inner surface, and a third portion for selectively engaging the mold and having an inner diameter greater than the outer diameter of the baffle head base. The baffle assembly is adapted for displacement through an intermediate position in which the baffle head separates from the outer ring so that settle blow air flows between the outer ring and the baffle head, and into the mold.

Abstract: A molding glass lens and a mold thereof are disclosed. The molding glass lens consists of an upper optical surface, a lower optical surface, two outers surrounding the optical surfaces and at least three grooves arranged in the form of a circle disposed on the lower outer and/or the upper outer. The disposition of the grooves has no affecting in original size of the outers as well as assembling with other mechanical parts in les group. The mold of the lens includes an upper molding unit and a lower molding unit. Cavity of each molding unit is composed of a central part for forming an optical surface of the lens and an outer circular part for forming outer of the lens. At least three protrudent parts with the same height are disposed in the form of a circle on the outer circular of the lower molding unit and/or the upper molding unit. Thus the air in the mold cavity is easy to exhaust through the gap formed by protrudent parts and glass preform.

Abstract: A forming device includes a sleeve member mountable between lower and upper mold units to hold a glass blank and having a stepped sleeve wall that defines first, second and third slot sections, and annular first and second shoulder faces. The second slot section is smaller than the third slot section and larger than the first slot section, and has top and bottom ends connected directly to the third and first slot sections. The first shoulder face extends radially at the junction of the first and second slot section to support the glass blank. A portion of the sleeve wall extends axially and upwardly from the first shoulder face to limit the glass blank from movement. The second shoulder face extends at the junction of the second and third slot sections to hold a lens formed from the glass blank.

Abstract: A baffle system for blank molds of a glassware forming machine, in accordance with an exemplary embodiment of the present disclosure, includes a first shaft mounted for movement in the direction of its axis and for rotation around its axis. A baffle arm is mounted to the first shaft and a manifold is suspended from the baffle arm. A plurality of baffle holders are suspended from the manifold, and rocker arms interconnect the baffle holders for equalizing forces applied by the baffle holders to the blank molds of a glassware forming machine. A second shaft is adjacent to the first shaft and a link arm extends between the second shaft and the manifold. The baffle arm, the manifold and the link arm form a linkage that moves the baffle holders between a first position overlying the blank molds and a second position spaced from the blank molds.

Abstract: A method and a machine for the production of hollow glassware articles, by the blow-and-blow, press-and-blow, press-and-blow paste mold and direct-press processes in a glassware forming machine including single or multiple machine sections each having single or multiple-cavity, comprising: forming a parison in an inverted orientation, into a blank mold and a first transferable and open-able neck ring mold held by an inverting apparatus having a first and a second diametrically opposed arms, each arm holding a transferable and open-able neck ring mold; inverting the parison held by the first transferable and open-able neck ring mold, by rotating the first arm 180° to an upright orientation at an intermediate station, while the second arm with a second transferable and open-able neck ring mold is simultaneously placed at the parison forming station; transferring the first transferable and open-able neck ring mold holding the parison in an upright orientation, from the intermediate station, to a blow mold statio

Abstract: A method and a machine for the production of hollow glassware articles, by the blow-and-blow, press-and-blow, press-and-blow paste mold and direct-press processes in a glassware forming machine including single or multiple machine sections each having single or multiple-cavity, comprising: forming a parison in an inverted orientation, into a blank mold and a first transferable and open-able neck ring mold held by an inverting apparatus having a first and a second diametrically opposed arms, each arm holding a transferable and open-able neck ring mold; inverting the parison held by the first transferable and open-able neck ring mold, by rotating the first arm 180° to an upright orientation at an intermediate station, while the second arm with a second transferable and open-able neck ring mold is simultaneously placed at the parison forming station; transferring the first transferable and open-able neck ring mold holding the parison in an upright orientation, from the intermediate station, to a blow mold statio

Abstract: A molded glass article manufacturing device, having a means of forcefully separating a molded glass article attached to the forming surface of an upper mold or a lower mold, and readily and reliably aligning the axes of the upper mold and lower mold, a molded glass article manufacturing method, and a method of assembling a molded glass article manufacturing device are provided.

Abstract: A method for forming glass sheets is performed by a system (10) that includes a furnace (12) having a heating chamber (14) in which a topside transfer device (20) has a downwardly facing surface (22) to which vacuum and pressurized air are supplied to receive and support a heated glass sheet from a conveyor (16) without any direct contact. A forming station (24) located externally of the furnace has a vertically movable upper mold (28) whose temperature is not greater than 500° C. The upper mold (28) cooperates with a horizontally movable lower ring (34) that transfers the heated glass sheet from the topside transfer device (20) to the forming station under the control of a first actuator (40). A second actuator (42) moves the upper mold (28) downwardly to cooperate with the lower ring (34) in forming the glass sheet. The external forming station (24) includes heat loss reducing apparatus (43) for reducing heat loss of the hot glass sheet during the forming.

Abstract: A method for forming glass sheets is performed by a system (10) that includes a furnace (12) having a heating chamber (14) in which a vacuum platen (20) has a downwardly facing surface (22) to which a vacuum is supplied to support a heated glass sheet received from a conveyor (16). A forming station (24) located externally of the furnace has a vertically movable upper mold (28) whose temperature is not greater than 500° C. The upper mold (28) cooperates with a horizontally movable lower ring (34). A first actuator (39) moves the vacuum platen (20) vertically to transfer a heated glass sheet from the conveyor (16) to the lower ring (34) which is then moved by a second actuator (40) to the forming station (24). A third actuator (42) then moves the upper mold (28) downwardly to cooperate with the lower ring (34) in forming the glass sheet. The forming station (24) includes apparatus (43) for reducing heat loss of the glass sheet during the forming.

Abstract: An H-28 machine has a plurality of identical sections each processing a gob of molten glass into a parison and then into a piece of ware each complete revolution of the section. Each section includes a blank mold displaceable between a parison forming position and a retracted position by blank mold down air.Each section also includes a plunger which is displaceable from an elevated position down to the parison forming position and a neck ring assembly which includes an air motor. Finally the section also includes a blow mold displaceable from a remote position to a closed position. The air motor is operated from the time that the blank mold begins its displacement from the parison forming position to the retracted position by a valve which connects blank mold down air to the air motor.

Abstract: A heat transfer method in a glass bending furnace, which has a top array of of successive heating sections (2) and under it a bottom array of successive cooling sections (3), and in which method glass sheets are conveyed on bending molds in mold carrying wagons on the top conveyor track from one heating section (2) to the next and on the bottom conveyor track from one section (3) to the next and the air heated by the bent hot glasses is sucked from cooling section (3) and blasted to the non-bent colder glasses in the heating sections (2). In order to intensify heat transfer, air sucked from the cooling section (3) is blasted as such, against the travel direction of the mold carrying wagons through the heating sections (2) to non-bent colder glass sheets in one of the heating sections (2) preceding the heating section (2) directly above the cooling section (3) from which the heated air is drawn as viewed in a direction of travel of the mold carrying wagons through the heating sections (2).

Abstract: A mounting structure for use in a glassware forming machine for moving an operative member, such as a funnel, baffle or blowhead, between an out of the way and operative positions. The machine comprises a vertical operating shaft and a parallel support shaft, and the mounting structure comprises a first link adjustably mounted on the operating shaft and a second link slidably mounted on the support shaft. The two links are both pivoted to a head and form a parallel linkage with it. A key and keyway, maintains the first link in a desired angular relationship with the operating shaft. The head is provided with a releasable device by which the operative member may be secured to the head in a desired angular relationship.

Abstract: Apparatus which is disclosed comprises a metal mold, a metal plunger and an annular manifold, and includes means for moving the plunger and the manifold between an open position in which the manifold surrounds the plunger and a gob of softened glass can be introduced into the mold and a closed position in which the manifold surrounds the plunger and the latter forms, with the mold and the manifold, a cavity in which a glass part can be formed. The manifold and the plunger have facing walls which are above the mold cavity, have portions which are in close fitting sliding engagement, and, thereabove, portions which diverge away from one another and form an annular space.

Abstract: When heating and bending glass sheets in a furnace, it is desirable to raise the sheets towards the furnace heat sources to increase obtainable temperature differentials and reduce heating power.

Abstract: A method and apparatus for pressing glass articles. A single mold may be utilized for each article being pressed. The plunger has a ring-like member movably attached thereto. After pressing, when the plunger is retracted from the plunger, the plunger retains the glass article thereon. The ring-like member is then lowered relative to the plunger, thereby removing the pressed article therefrom.

Abstract: Mechanism for moving an operative member such as a blowhead funnel or baffle in a glassware forming machine comprises a piston rod on which the operative member may be mounted and two piston heads on the rod which may be operated independently of each other, one to cause axial movement of the rod and the other to cause rotation of the rod.

Abstract: A neck ring mechanism of an H-28 glass forming machine is operated by a neck ring lever which is pivotally supported and controlled by a cam roller which is displaced along a timing cam. To precisely define the timing of the lever, the lever is displaceable relative to a sleeve which is secured to the shaft and a control knob operating through an adjuster plate assembly adjusts the axial location of the lever.

Abstract: A mold arranged between a pair of heater blocks for molding an optical element comprises a pair of first and second elements each having a molding surface for defining a cavity and an outer surface opposite to the molding surface and in contact with a corresponding heater block, and a ring member for guiding the first and second elements. The rear surface of at least one of the first and second elements has a part which is not in contact with the corresponding heater block. Also, another mold comprises a pair of first and second elements each having a molding surface for defining a cavity and an outer surface opposite to the molding surface, a first ring member for guiding the first and second elements, and a second outer ring member made of a material with a lower thermal conductivity than that of the first ring member. A molding method for optical elements is such that a glass with a viscosity of 10.sup.

Abstract: An assembly for preventing a flanged finish on the neck portion of a glass container by permitting continuous engagement between the neck ring and the guide ring even though the guide ring is subject to wear and by forcefully maintaining this continuous engagement with a spring urged centering sleeve which extends through a bore in the neck ring to engage the bottom of the guide ring. The neck ring includes a stepped interior annular groove into which a guide ring having an outer stepped annular portion is received. While the total height of the guide ring corresponds to the total height of the groove of the neck ring, the upper surface (70) of the bottom step (72) of the guide ring establishes a selected clearance (Z) with the upper surface (74) of the bottom portion (66) of the neck ring groove so that the continuous engagement can be maintained as the top surface of the guide ring wears.

Abstract: Parisons of molten glass for subsequent moulding are molded in a mould cavity formed from one-piece lower portion (10), a dividable neck ring (14), and a dividable central mould portion (24). A gob of molten glass is introduced into a gov uide (58) so that the gob passes into the mould through the neck ring (14). A plunger guide (42) which serves to guide the plunger (26) through the neck ring (14) is introduced into the gob guide (58) and a plunger (26) is introduced into the plunger guide (42) so that the plunger enters the mould through the neck ring (14). During pressing of the glass, the guide (42) which serves to guide the plunger (26) through the neck ring (14) is pressed downwardly on to the neck ring (14). The guide (42) defines a sealing surface (54) of the neck portion (16) of the mould cavity.

Abstract: A device (10) for registering together two cooperable glass article handling components (12,14) is disclosed as including a first registering member (16) on one of the handling components and a second registering member (18) on the other component. The registering members (16,18) are movable toward one another in a direction of registration A,A' and one of the registering members includes fixedly spaced rollers (20) for engaging the other registering member with rolling contact to provide registration between the handling components (12, 14) during glass article handling.

Abstract: A moving mechanism for moving a baffle (16), funnel or blowhead. A support (14) for the member is pivotally mounted on a first horizontal axis (20) on an arm (18) which is mounted to turn about a second horizonal axis (22) to move the member between operative and out-of-the-way positions. Driving means (24) is operable to turn the arm about the second horizontal axis and orientation means (42) maintains the member in a constant orientation during movement of the arm.

Abstract: The supporting means for a baffle used to close a mould of a glassware forming machine comprises an arm (12) mounted for vertical movement and for movement about a vertical axis. A support (14) is mounted on the arm and a baffle holder (28) is mounted on the support. The baffle holder is mounted on the support for limited vertical movement relative thereto against the action of resilient means (32) and also for limited movement in a horizontal plane.

Abstract: A moving mechanism for moving a baffle (16), funnel or blowhead. A support (14) for the member is pivotally mounted on a first horizontal axis (20) on an arm (18) which is mounted to turn about a second horizontal axis (22) to move the member between operative and out-of-the-way positions. Driving means (24) is operable to turn the arm about the second horizontal axis and orientation means (42) maintains the member in a constant orientation during movement of the arm.

Abstract: A neck mold for a glass champagne bottle forming system for forming bottles on the well-known I.S. forming machine is made of two matching halves that form the transfer bead and lower portion of the neck of the bottle mates with an annular, one-piece guide ring carried by the neck ring. The annular guide ring has a relatively sharp edge that matches with the plunger that forms the interior of the bottle finish and also has a flat surface, adjacent the sharp edge, that extends at a 25.degree. angle with the horizontal and forms a planar sloping surface on the inner, upper surface of the bottle with the planar surface being joined to a flat, generally horizontal surface that extends to a curved surface that in turn extends over the top of the bottle finish to an outer annular line where the guide and neck ring mold meet. The resulting bottle produced is one which does not require fire polishing to remove any mold match lines or beads that might interfere with proper sealing of the corks.

Abstract: A carrier arm for a glass blowing machine employing two or more holders with removable heads. The heads fit into the holders by the utilization of a bayonet fitting, and a retainer ring is provided that encircles the holders and maintains the heads in locked position in the holders without exerting any lateral forces on the heads.

Abstract: An improved blank cylinder mechanism for a glassware making machine which utilizes shims between the bottom plate and support in conjunction with the cam track to adjust the angular position of the cylinder in down position. Also, the blank cylinder mechanism uses a double tapered slot in the piston rod to provide cushioning.

Abstract: A parison is molded from a gob of molten glass by first increasing the volume of the interior of a cup-shaped main mold body by an extra volume. Then the molten-glass gob is inserted through an upper opening into the interior of the main mold body. A neck mold comprising a split neck ring is closed on the main mold body so that the neck mold and the main mold body together define a mold cavity partly formed by the interior of the main mold body. A plunger is inserted through the neck mold down into the gob in the mold cavity to displace molten glass and shape the gob into a parison. The extra volume of the interior of the main mold body is then decreased to zero at the latest until the time at which the parison is finished, so that the molten glass rises in the mold cavity up to a level above the top of the main mold body. Finally the parison thus formed is demolded.

Abstract: A glassware forming machine is shown which has a baffle support arm. The baffle support arm provides for four individual baffle holders which are grouped in adjacent pairs. The pairs of holders are interconnected by an equalizer arm and are biased into position by a leaf spring above and by a coil spring below. The equalizer arms are connected intermediate their lengths to a third larger equalizer bar which is pivoted for a rocking motion. The apparatus further comprises means for lifting and moving the baffle support arm and a latch means for changing the baffle holders.

Abstract: Glass or glass-ceramic vessels are formed with a pouring lip wherein wall portions of the vessel below the lip are of a thinner construction than the remaining wall portions so as to impede glass flow to the lip area and facilitate uniform glass flow to upper portions of the vessel during the forming process.

Abstract: An improved apparatus for the transfer of mold rings in a centrifugal casting process. One type of forming process for the funnel portions of color television picture tube envelopes utilizes a centrifugal casting process for the glass. This process requires a main mold body. An indexing mechanism moves from a station at which the mold ring is deposited on the main mold to a station where the mold ring is removed from the main mold after completion of the casting process. A movable shuttle member is connected to pivotally mounted pairs of support fingers for the mold rings through connecting rods. An external drive motor operates a single actuator at each machine cycle. This single actuator causes the entire shuttle to shift and a mold ring to be deposited at one station and a second mold ring to be simultaneously picked up at another station. Because of the mechanical linkage design, one pair of support fingers always opens while all the others close when the single actuator is operated.

Abstract: Apparatus for producing a glass parison comprises a spindle and a plunger mounted in the spindle for axial displacement. Mechanism is provided for axially displacing the plunger relative to the housing. A press mould has a cavity for carrying glass melt and is movable into a working position aligned with the plunger so that the plunger may enter the mould cavity. A recess is provided in the housing in communication with the mould cavity to receive excess glass melt displaced thereinto in response to positioning of the plunger within the mould cavity. The plunger functions as a valve to alternately block and establish access between a blowing air passage and the front end of the plunger to allow air to be blown against a glass parison being produced. Retaining ring segments which partly define the melt-receiving recess are pivotable between a first position retaining a parison in place, and a second position allowing removal of the parison.

Abstract: Stemmed glassware is produced by a method and apparatus in which the stem is formed separately and is subsequently joined to the cup at the final phase of the blowing operation of the cup glass. In the apparatus a first rotatable platen having cup molds is provided for blowing of the cups and a second rotatable platen having stem molds is provided for forming the stems. A drop of glass for producing the stems is dropped through a very short distance of about 20 to 40 mm. to prevent excessive cooling of the glass drop and to assist in centering the glass drop in longitudinally divided stem molds. A ring centers the mold halves of the stem molds and a surface on the ring molds a part of the stem base. The second platen rotates the stem molds through a pressing station at which the glass drop is pressed to form the stem to a transfer station at which a transfer means transfers the finished stems from the second rotatable platen and attaches the stems to the cups on the first rotatable platen.