Abstract: A distributing arrangement for a pressurized cooling fluid, especially air, for cooling a forming tool of a machine for forming thermoplastic material, especially molten glass, wherein the forming tool includes at least one split mold including mold segments which are respectively mounted on mold segment holders for movement therewith relative to one another and each of which is provided with a plurality of fluid channels for the flow of the pressurized of fluid channels for the flow of the pressurized cooling fluid therethrough, comprises a fluid distributing box including for each of the mold segments at least two branch channels individually communicating with at least one of the fluid channels when the distributing box is mounted on the mold segment holder.

Abstract: An arrangement for adjusting the mass of gobs of thermoplastic material, especially molten glass, which are deformed in a positive manner in the mold of a molding machine by means of a pressing member which penetrates into the gobs. A distance transducer mechanically detects the maximum depth of penetration reached by the pressing member during each molding-machine operating cycle. The distance transducer is connected with a metallic actuating element for a differential transducer, at whose output is produced an electrical signal proportional to the maximum penetration depth reached, this signal being applied to an automatic regulating circuit which adjusts the setting of a dosing structure which controls the mass of the gobs.

Abstract: A cooling arrangement for use in a machine for treating a thermoplastic material, especially molten glass, for cooling a split forming tool, parts of which are mounted on the machine for pivoting about a first pivoting axle, by a pressurized cooling fluid, especially air, includes at least one supply conduit stationarily mounted on the machine and operative for supplying the cooling fluid, and at least one articulated connecting conduit extending between the supply conduit and a respective fluid distributing means mounted for joint pivoting with the forming tool parts about the first pivoting axle, each articulated connecting conduit having at least two components one of which is pivotally mounted on a second pivoting axle arranged at the supply conduit, and the other of which is connected to the one component by a third pivoting axle for relative pivoting and is pivotally mounted on the fluid distributing means for pivoting relative thereto by a fourth pivoting axle, the first, second, third and fourth pivot

Abstract: A mold has a mold cavity centered on an axis and formed with a plurality of arrays of passages each lying at least approximately in a respective plane including the mold axis. Fluid is passed through these passages in order to cool the mold, and fluid may be passed more rapidly or under greater pressure or under lower temperature through some of the passages than through others in order to increase the cooling effect. Similarly inserts may partially insulate some of the passages for cooling some parts of the mold more or less than others. A plurality of temperature sensors each connected to a respective control valve may serve to control the fluid flow through each of the passages or sets of passages for continuous cooling control.

Abstract: Each station has a push-off unit which transfers glass articles produced at such station onto a common outfeed conveyor. Each push-off unit comprises a cylinder-piston unit mounted for swinging movement on a vertical swing shaft, the piston thereof carrying a push-off arm. The push-off arm extends and engages the articles to be transferred, the cylinder swings towards the belt transferring the article, and the push-off arm retracts and the cylinder swings back. The push-off units of the plural stations are activated sequentially, in correspondence to the sequence in which glass gobs are fed into the respective machine stations. Plural electric motors are provided, one per station, and the swing motion of the push-off unit is generated by the respective electric motor. The rotation of each electric motor is controllable, by open- or closed-loop control, independently of the other electric motors. The operator selects the sequence in which the electric motors are to be activated.

Abstract: The apparatus includes a photoelectric sensor associated with a predetermined zone of a hollow glass article to be examined for faults. During one testing operation, the photoelectric sensor successively detects all faults in that zone and generates for each a fault signal whose value is dependent upon the characteristics of the fault. The fault signals are applied to a threshold circuit which generates an output signal only when the fault-signal value exceeds a threshold-signal level. The setting-up procedure involves performing at least one preliminary testing operation upon a preselected sample or standard article having acceptable faults. Each threshold-circuit output signal automatically results in a circuit adjustment which reduces by a predetermined amount the extent to which the respective fault-signal value exceeds the threshold-signal level.

Abstract: A moulding tool for a machine for moulding plastic material, especially molten glass, comprises at least one mould middle section divided into a plurality of middle section parts, and operating means having members each carrying with clearance a respective one of the mould middle section parts for opening and closing movements transversely of the longitudinal axis of the mould and transversely guiding the parts in two axially spaced guide planes by means of guide elements.

Abstract: A press-and-blow container making machine wherein one of two rotary tables supports a set of blank molds receiving gobs from a gob feed and the other rotary table supports a set of blow molds serving to convert parisons obtained from the blank molds into finished containers. An endless flexible conveyor carries neck rings which transport parisons from the first table, past a preliminary treating unit and on to the blow mold. The neck rings also transport finished containers away from the blow molds.

Abstract: A machine for forming hollow articles of vitreous material includes at least one forming station provided with at least one forming means and for each forming means a neck ring means carrying a parison and including a pair of neck ring halves and a guide ring coaxially carried by the neck ring halves and rotatable relative thereto. The guide ring which engages the parison at its mouth is rotated to thereby impart to the parison a rotary motion relative to the remainder of its forming means which may comprise a split mold to thereby avoid formation of seams or fins on the finished hollow article and to improve the surface quality thereof.

Abstract: An apparatus for cooling tools of glass-forming machines, especially plungers and molds, in which the tool surface to be cooled is substantially covered by cover means in contact with the tool surface and in which a cooling liquid is applied to the cover means so that the liquid will evaporate and cool the cover means, as well as the tool surface in contact therewith.

Abstract: A device for shearing gobs from at least one strand of material in plastic condition, for instance molten glass, comprises two blades movable toward and away from each other, one of which is tiltable about its longitudinal axis, and the other about an axis transverse to its longitudinal axis.

Abstract: An arrangement for successively feeding gobs of plasticizable material into blank molds arranged on a turntable of a bottle making machine from a gob supply means stationarily arranged relative to the turntable. The feeding arrangement preferably comprises a feed channel for each mold and means carried by the turntable and supporting each feed channel at two points at different elevations. The support means are adjustable during rotation of the turntable in such a manner so as to successively align the upper end of each feed channel with the gob supply means for receiving a gob therefrom, and the lower end with the respective mold for supplying the received gob into the latter while a press plunger cooperating with the mold is in an upwardly withdrawn position.

Abstract: A plurality of articles are to be transferred simultaneously from one position in which they travel on a first conveyor in a first direction to another position in which they travel on a second conveyor at a slower speed and in a second direction transversely of the first direction. A pusher bar is provided which extends parallel to the first direction and mounting links pivotally mount the pusher bar for displacement across the first conveyor toward the second conveyor in a direction having one component of movement in the second direction and another superimposed component of movement in the first direction. A crank drive is spaced from the pusher bar and is connected with the same by a connecting rod which is so associated with the mounting links as to include an angle with the latter in all of its positions which it can assume relative to the mounting links when actuated by the crank drive.

Abstract: A machine for forming hollow articles of vitreous material includes at least one forming station provided with at least one forming means and for each forming means a neck ring means carrying a parison and including a pair of neck ring halves and a guide ring coaxially carried by the neck ring halves and rotatable relative thereto. The guide ring which engages the parison at its mouth is rotated to thereby impart to the parison a rotary motion relative to the remainder of its forming means which may comprise a split mold to thereby avoid formation of seams or fins on the finished hollow article and to improve the surface quality thereof.