Abstract: An apparatus for controlling a gob distributor of an IS or RIS machine for manufacturing hollow glass articles. The apparatus comprises a hydraulic drive, which is connectible to a position control device associated with the gob distributor, so as to move the distributor in oscillating or swinging motions. The hydraulic drive is controlled by a valve which, in turn, is actuated by a computer unit. The electronic arrangement of the apparatus includes an adapter, a digital-analog converter operatively connectible between the valve and the adapter, a parallel interface and connectible to the latter, a computer, a memory, and a synchronizer. The apparatus affords swift, precise, and controlled deposition of a glass gob which leads to the production of a parison in glass article manufacture.

Abstract: Hollow glassware is made in a method wherein a necking shear is displaceable between one end position blocking one end of a passage of a preform mold and another end position at a final mold and a liquid is sprayed into the other end of the passage of the preform mold. In addition the necking shear is temporarily retained in an intermediate position between the two molds and simultaneously the liquid is sprayed into the passage. This passage is upright and the one end is below the other end. Thus a pocket of air that would prevent the mist from settling in the passage is not created, and the passage can be effectively wetted even by a relatively small volume of liquid. A bottom-blowing unit constituted as a vertically displaceable plug is provided below the preform mold. This plug is raised once the gob is in place and during top blowing to form the initial hollow in it and is shielded during spraying of the liquid into the passage.

Abstract: A feeding device has the object to ensure the supply of a continuously flowing glass strand and to divide it into predetermined gobs thus establishing the weight of the individual gob and thereafter to proceed with the final sectioning. It is known to activate the drives of the moving mechanical parts of such a feeding device by compressed air. Because of the compressibility of the air, and depending, among others, on the length of the piping, its clear cross section and the prevailing air pressure, an accurate control is not possible, especially when the masses to be moved are large. In order to avoid these disadvantages, the invention makes use of hydraulic piston units for the drive of the translatory movement of the stopper and of the pipe and the use of a hydraulic rotary piston for the rotational movement of the cutting device. The turning movement of the pipe is achieved through a hydraulic rotary piston.

Abstract: A glassware-making apparatus has a premold adapted to make a parison and a final mold spaced from the premold and adapted to receive and blow-mold the parison. An arm removes the parison from the premold and displaces it along a path to the final mold. A scrap chute can be displaced by a controller into a position intercepting this path to catch the parison and divert it to a recycle/scrap bin when the controller detects a malfunction at the final mold or downstream therefrom.

Abstract: An apparatus for making hollow glassware has at least one preform provided adjacent a turntable rotatable about an upright axis and carrying at least two angularly spaced final molds. The turntable can rotate about this axis so as to orbit the final molds through a transfer position close to the perform and a takeout position angularly offset from the transfer position and remote from the preform. At least one arm is provided above the turntable and final molds and carries at least two respective mold heads. This arm is pivotal about the axis with the mold heads being vertically alignable and engageable with the respective final molds. The arm and mold heads can be pivoted about the axis independently of the turntable and a source of air at a pressure different from ambient is connected to the mold heads through the arm.