Abstract: There is provided a device for manufacturing a molded glass body, including a fall-prevention means for preventing the glass molded body which has stuck on the upper mold from falling down on the lower mold. Thus, the molded glass body does not damage the lower mold, even if the molded glass body which has stuck on the upper mold falls down from the upper mold, during a period from an end of the pressure molding to releasing and withdrawing the molded glass body obtained by the pressure molding from the any one of the upper mold and the lower mold.

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: An automatic, rotary, glass-making press comprises a base, a rotary table mounted for rotation on the base, and glass-forming mechanisms on the table and base, for formation of glass articles at work stations around the press. A rotator is mounted for rotation to the base, and a drive pin is mounted to the rotator. The drive pin is advanced and retracted into engagement and out of engagement with the table. A rotator drive drives the rotator in reciprocating rotation, and includes opposed hydraulic drive and cushion cylinders mounted between the base and the rotator. The drive cylinder advances the rotator; the cushion cylinder cushions the advance, and returns the rotator to starting position. The drive and cushion cylinders are trunnion mounted to the base, for arcuate motion of the rods of the cylinders during rotary motion of the rotator. A control co-ordinates the advance and retraction of the drive pin and the drive and return of the rotator, for incremental forward advances of the press rotary table.

Abstract: A variable index molding press having a mold table rotatably placed on a base including a plurality of mold positions on the table for locating various numbers of molds thereon with molding means on the base for cooperating successively with one or all of the molds on the said table at a molding station, table drive means for rotating the table, electronic index control means connected to the drive table means and the molding means including a digital computer programmed for number, type and spacing of the molds, molding times for controlling and synchronizing the molding and the table rotation and a time signal source adapted to generate time representative signals to the computer.

Abstract: An improved drain hole is provided for a pneumatic line of a gas turbine engine. The improvement is essentially comprised of an enlargement that prevents liquid surface tension at the drain hole outer opening from inducing buildup of liquid inside the pneumatic line.

Abstract: In the production of a glass vessel (such as a goblet) comprising a receptacle part (e.g. a goblet bowl) and a stand part (e.g. a stem with a base plate), the receptacle part is formed by pressing in successive moulds carried by a rotary table and the stand part is formed by injection moulding, being simultaneously united to the receptacle part. In carrying the invention into effect the mould for the receptacle part is charged from a feeder in free drop fall; the table is then rotated to bring the pressed receptacle part into register with an injection mould for the stand part, and an injection device, of which the injection mould forms part, is charged from the same feeder by way of a drop guide channel.

Abstract: In a turret press for moulding glass, a turntable is equipped with a plurality of equally circumferentially spaced mould-receiving stations which move past stationary operating stations comprising at least one glass charging station, at least one glass pressing station and at least one product withdrawing station. The turntable is driven by a Maltese cross mechanism connected to a continuously running motor by a clutch and brake device. Scanners provided for uncoupling and braking the Maltese cross mechanism are disposed at each said operating station to co-operate with actuators of the mould-receiving stations on the turntable. Any one actuator is operative to co-operate with the scanners only when a mould is present at the respective mould-receiving station.