Abstract: An indexed unidirectional rotary inverting apparatus (UIA) for a glassware forming machine of single or multiple-cavity mounted on an apparatus support frame.

Abstract: An invert mechanism for a glassware forming machine includes a support frame having a base adapted removably to be mounted on a forming machine frame. A linear actuator is suspended from the support frame and a linear gear rack extends from the actuator within the support frame. A hollow shaft has a central portion carried for rotation on the support frame and oppositely extending end portions with axial external splines and open ends. A gear is coupled to the central portion of the shaft for co-rotation with the shaft and has external teeth coupled to the gear rack. A pair of ball nuts are disposed on the end portions of the hollow shaft, and a pair of hollow pneumatic pistons are respectively disposed on the ball nuts over the open ends of the shaft. Invert arm mounts are respectively disposed on the pistons, and a spring is disposed within each piston operatively extending between the piston and the shaft to bias the pistons to a position adjacent to the support frame.

Abstract: An invert assembly for an individual section glassware forming machine includes an invert base that is oscillated about an axis between angularly spaced apart first and second positions, a double ended ball screw positioned co-axially with the axis and having spaced apart oppositely threaded portions, first and second nuts each threadably engaging one of the oppositely threaded portions of the ball screw so that the nuts reciprocate toward and away from each other in response to rotation of the ball screw, and first and second neck ring arms respectively engaging the first and second nuts so that the neck ring arms reciprocate toward and away from each other along the axis with the first and second nuts. Preferably, the invert base is oscillated about the axis by a first reversible electric motor, and the ball screw is driven for rotation in opposed directions by a second reversible electric motor to move the nuts and neck ring arms toward and away from each other along the axis.

Abstract: An invert mechanism for moving parisons between a pre-forming station and a finishing forming station of a glass forming machine is disclosed. The mechanism is disposed above a cover plate of a frame of the glass forming machine. An electric motor is disposed with its horizontal longitudinal axis above the cover plate. A driven shaft of the electric motor is connected to a horizontal invert shaft by means of a transmission. Between the driven shaft of the electric motor and the transmission a planetary gear is connected.

Abstract: A neck ring arm assembly for a glass container forming machine of the individual section type comprising a horizontally extending invert shaft and a vertically extending cylinder with a rack that engages a spur gear attached to the invert shaft to oscillate the invert shaft. In a first embodiment, the invert shaft has an inner annular sleeve keyed to it, and the inner annular sleeve has a polygonal exterior, preferably a hexagonal exterior. First and second outer annular sleeves surround the inner annular sleeve to be oscillatable therewith, but reciprocable with respect thereto.

Abstract: A neck ring arm assembly for a glass container forming machine of the individual section type comprising a horizontally extending invert shaft and a vertically extending cylinder with a rack that engages a spur gear attached to the invert shaft to oscillate the invert shaft. The invert shaft has an inner annular sleeve keyed to it, and the inner annular sleeve has a polygonal exterior, preferably a hexagonal exterior. First and second outer annular sleeves surround the inner annular sleeve to be oscillatable therewith, but reciprocable with respect thereto. Each of the first and second outer annular sleeves has a polygonal interior which is complementary to the polygonal exterior of the inner annular sleeve, and each is provided with a plurality of replaceable wear pads each of which is adjustable toward a surface of the polygonal exterior of the inner annular sleeve to provide for close, low backlash engagement of the inner annular sleeve by the outer annular sleeves over a prolonged duration.

Abstract: A glass object having protrusions and/or recesses, for example a glass lid (1) with a handle (2), is produced in an IS machine by pressing molten glass from above in a mould with the cover of the mould, in a mould defined by said cover, by a shaping mould (11) and by a mouth mould (13) disposed under the shaping mould. When the glass lid is formed its handle projects downwards and lies in the mouth mould. SUbsequently the glass lid is transferred together with the mouth mould to the finishing mould (12) and is at the same time returned into a position in which the handle projects upwards in the finishing mould in which it is cooled supported by the finishing mould.

Abstract: An invert/neckring mechanism for an individual section (I.S.) glass forming machine including a rectangular shaft and a pair of neckring arm holders having a central passage which mates with the rectangular cross-sectional shaft to limit the movement between the shaft and the arm holders to axial movement all rotated through the invert arc by a hydraulic actuator in juxtaposition therewith. A plurality of springs bias the arm holders together to a closed position and a hydraulic double piston cylinder assembly is mounted adjacent to the shaft between the arm holders to open and close the arm holders.

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 neck ring mechanism for transferring a blank or parison from a blank mold section to a blow mold section of an I.S. glass forming machine includes a rock shaft and a pair of spaced cylinders reciprocable in opposition directions on the shaft. The rock shaft is provided with a plurality of longitudinal grooves, and a like plurality of followers are arranged in the grooves so as to contact at least one side wall of each groove. The followers are supported on each cylinder. One or more piston rings are seated in associated annular grooves in the rock shaft so as to preclude air leakage.