Abstract: A resin molding system 1 comprises a gripping device 3 provided with a gripping frame 30 for gripping a resin sheet material 2, a heating device for heating the resin sheet material 2 and a molding device for clamping a lower die 61 and an upper die, and affixing the resin sheet material 2 to a substrate 63. The molding device is provided with: a lowering device for lowering the gripping device 3 and causing the resin sheet material 2 gripped by the gripping frame 30 to approach the lower die 61; and a pair of bent posts 67, 68 which are provided on both Y-direction sides of the lower die 61, and which come in contact with portions of the gripping frame 30 when the gripping device 3 is lowered, and which convexly bend the gripping frame 30 upward as viewed from the side along the Y-direction.

Abstract: A vacuum valve for use with a blow mold in an I.S. machine. When the blow molds close around a parison, vacuum is applied to the wall of the blow mold. At some time following the application of the vacuum, final blow will occur blowing the parison into a bottle. This vacuum will be applied until the parison has been blown into a bottle. During the period during which vacuum is applied but final blow has not started, vacuum is reduced by operating a needle valve in the vacuum line.

Abstract: A vacuum valve for use with a blow mold in an I.S. machine. When the blow molds close around a parison, vacuum is applied to the wall of the blow mold. At some time following the application of the vacuum, final blow will occur blowing the parison into a bottle. This vacuum will be applied until the parison has been blown into a bottle. During the period during which vacuum is applied but final blow has not started, vacuum is reduced by operating a needle valve in the vacuum line.

Abstract: A plunger for use in forming parisons during the manufacture of glass containers having a biased open valve therein.

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 microstructure is formed in a viscous glass or plastic substrate by pressing a structured surface of a forming tool corresponding to a negative of the microstructure to be produced in the viscous glass or plastic substrate. After the microstructure has been formed, the forming tool is removed from the surface. In order to help form the microstructure and remove the forming tool from the substrate the forming tool has an at least partially porous base body (1) and an operative layer (2) structured with a negative structure consisting of grooves (11) extending to the porous base body (1). The forming of the microstructure in the substrate is assisted by applying suction to the porous base body (1) so that the grooves (11) fill more easily and completely with melted glass or plastic material. The removal of the forming tool after forming the microstructure is assisted by applying an overpressure to the porous body to help release the solidified glass or plastic material from the forming tool.

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 vacuum system is disclosed for opposed engaged pairs of blow mold halves on a section of an I.S. machine. The system includes a bottom housing which is open at the top and closed by a top plate assembly including a top plate having a vertical opening for each of the opposed pairs of blow mold halves and an annular manifold support portion below the top plate. A vacuum manifold which has a cylindrical inlet conduit and a vertical outlet conduit beneath each of the top plate vertical openings is supported by the annular mold support portion. A vacuum tube slides into the cylindrical inlet conduit and is mounted on the annular manifold portion. The vacuum tube has a hole for communicating with each of the vacuum manifold vertical outlets.

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: The method and apparatus for producing a hollow glass article permit removal of a resulting hollow glass article without severing a moll. By this, glass powder which would otherwise be caused and fallen into the hollow glass article during severing the moil may prevented. The invention also permits elimination of a means for positioning a respective blow head and for stopping rotation thereof. A quantity of molten glass of a disk-shaped configuration is supplied onto a support ring. Each blow head is lowered onto a corresponding support ring. The molten glass on the support ring is held by the blow head by its periphery. Then, the support ring is removed or withdrawn. A quantity of air is blown into the molten glass by means of the blow head so as to form a hollow glass article. Subsequently, the holding ability of the blow head is eliminated, so as to remove or unload the resulting hollow glass article. Alternatively, the support rings may be omitted.

Abstract: A valve assembly for controlling the application of suction and counterblow air to a blank mould of a glassware forming machine. The assembly comprises a body (1, 2, 3, 4) in which are enclosed a first valve (5) for controlling the application of suction, a second valve (6) for controlling the flow of counterblow air, and a third valve (7) for venting the blank mould. The body (1, 2, 3, 4) has a central chamber (32) through which the suction is applied when the first valve (5) is open, through which the counterblow air passes when the second valve (6) is open, and through which the mould is vented when the third valve (7) is open.

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: The bottom plate mechanism has an adaptor plate (10) on which bottom plates of one or more moulds are mounted. The adaptor plate contains passages (14,20) which connect an inlet (16) thereof to a source of vacuum through a filter (72). In order that the filter may be rapidly changed, the adaptor plate is supported by a vertically-extending tubular member (24) which is supported for height adjustment, with a cylindrical projection (12) of the adaptor plate telescopically received within the tubular member. The arrangement is such that the adaptor plate (10) may be lifted away from the tubular member (24) so that the cylindrical projection (12) and filter (72), which is mounted on the cylindrical projection, leave the tubular member.

Abstract: Two mould portion carriers (14,16) are supported for pivoting movement about a column (12). Two cooling passages (44,48) pass through the column and each is connected to a passage (56,96) in one of the carriers. Each passage (56,96) in a carrier is connected to passages (82,84,86,88) in a mould portion (18) supported by the carrier (14,16) so that air under pressure supplied to the passages (44,48) in the column (12) is supplied to the passages in the mould portion to cool the mould portion. The air supply to each of the passages in the column is controllable independently so that the air supply to each mould portion is independent.

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: An apparatus for manufacturing glass bottles is disclosed which includes consecutively delivering gobs of molten glass into a blank mold, forming each gob into a parison, transferring the parisons alternately into at least two sets of blow molds, allowing said parisons to reheat, and expanding the parisons in the blow molds. The sets of blow molds recipricate along a substantially vertical path. A first position where the parisons are alternately received by the blow molds and blown containers removed is located on the vertical path. The parisons are expanded and cooled in the blow molds by blowing them out or by applying a vacuum, or a combination of those means at a second position on the vertical path. The apparatus is an improvement to forming sections of the well known Hartford type I.S. machine.

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.