A process for producing glass bottles with shoulders includes a preform preparation step and a finishing step, in which a compressed gas is blown and the preform is rotated by 180 between the preform mold and the finishing mould. Preform preparation is achieved by introducing a glass gob into the mold through an upper aperture; inserting a blowing sleeve into the glass gob, the end of the sleeve extending beyond the shoulders of the outline of the preform of the bottle, the sleeve being closed by a plunger element slidable within its interior; opening the cavity of the sleeve to disengage the plunger element; and blowing air through the sleeve, wherein the final finishing step is achieved in an open preform mold, the volume of the cavity of the finishing mold being greater than the volume of the cavity of the preform mold by 5-20%.

A neck ring holder device intended to be used at a mould for forming glass containers (30), wherein the neck ring (41) for realizing the mouth (32) of the container can be opened and consists of a plurality of circumferential sectors (44) that can be moved apart from a closed position of the neck ring (41), in which the circumferential sectors (44) are coplanar and form a substantially continuous annular element, up to an open position of the neck ring (41), in which the circumferential sectors (44) are rotated out of said coplanar configuration, moving away from each other, about axes directed perpendicular to the direction of the axis (45) of said annular element, is characterised in that the movement of the circumferential sectors (44) from the closed position to the open position.

A method of making a hollow container-shaped glass article composed of soda-lime-silica glass includes forming a particulate feedstock comprised of pulverized soda-lime-silica cullet particles into a hollow monolithic glass container preform without melting the cullet particles. The hollow monolithic glass container preform has a container shape that includes a wall defining an interior containment space and an opening to the interior containment space and, upon formation, has a temperature above the glass transition temperature of the soda-lime-silica glass. The hollow monolithic glass container preform is eventually cooled into a hollow, amorphous soda-lime-silica glass article, such as a partially-formed container or a finished container, that retains the previously-established container shape.

An inverter unit for a hollow glassware forming machine comprises a supporting structure; a first and a second pick-and-place arm having one or more recesses for picking up glassware and coupled to such supporting structure so as to rotate about a first axis and so as to translate along such first axis between an open position and a closed position; and a centering device having a head, which can rotate about a second axis. The centering device also has a transmission mechanism, which converts the rotary motion of the head into a translational motion of the supporting structure along the first axis with respect to a fixed base.

An inverting mechanism of a glass forming machine includes: a supporting structure; a shaft horizontally located over the upper portion the supporting structure; drive means coupled to a shaft to provide rotational movement to the shaft; a cylindrical body having a longitudinal opening in an eccentric reference axis, which is coupled to the shaft through its longitudinal opening, in an eccentric position; at least one hollow cylinder coupled with each cylindrical body having attached supports to its outer part which are connected to neck ring holder arms so that, by means of a first sliding movement of the hollow cylinder on the cylindrical body, it provides a lateral movement to open and close the neck ring holder arm supports in parallel and, by means of a rotational movement, it moves the neck ring holder arms with a 180 movement from a parison mold to a finish blow mold.

A method and apparatus for forming a glass parison are disclosed. A glass parison forming apparatus includes a feeder spout having an orifice ring, a plunger carried in the feeder spout and including a blow conduit therethrough, and a neck ring located immediately downstream of the orifice ring, with no chutes, scoops, or other gob handling devices therebetween. A glass container produced by the disclosed method and apparatus is also described.

An assembly for forming a parison within a mold of a glass forming machine includes a plunger cylinder having a first end configured to be received by the mold and form the parison and a second end. The cylinder is configured for movement along a translational axis. An alignment plate defines a bore through which the cylinder extends. The alignment plate is configured to be affixed to a fixed member of the forming machine after movement of the alignment plate in a plane perpendicular to the translational axis to align the translational axis of the cylinder with a centerline of the mold. A height adjustment plate is spaced from, and hung from, the alignment plate and configured to support the second end of the cylinder. The height adjustment plate is movable relative to the alignment plate to cause a corresponding movement of the cylinder along the translational axis.

The present invention relates to a particle filter (F) for a glass forming machine operating according to a blow-and-blow process or according to a press-and-blow process, said particle filter (F) is adapted for placing in at least an air channel (14a) serving pressurized air for counter blow (5) of a parison (P) in a blank mold (2) forming station of said glass forming machine, and/or an air channel (14b, 20) serving pressurized air for final blow (11) and/or for finish cooling (21) of a glass container (12) made of said parison (P) in a finish mold (8) station of said glass forming machine, said particle filter (F) comprising a surface filter as a main filter media (MF) and said particle filter (F), if placed in at least said air channel (14a) serving pressurized air for counter blow (5) of said parison (P) in said blank mold (2) forming station of said glass forming machine, and/or said air channel (14b, 20) serving pressurized air for final blow (11) and/or for finish cooling (21) of said glass container made of said parison (P) in said finish mold (8) station of said glass forming machine, avoiding passage of particles above a certain size from a dirty side of said main filter media (MF) to a clean side of said main filter media (MF) and thus, also avoiding final passage of said particles above said certain size into said parison (P) or said glass container (12) blown by said glass forming machine and a plunger unit (PU), a blow head (BH), a blow head support and a glass forming machine adapted for a particle filter (F) according to the present invention.

The present invention relates to a support block with individual hollow sections, for a machine for forming glass objects, and to its manufacturing method. The support block comprises: a single-piece support body formed by a front wall, a rear wall and lateral walls, thus forming a hollow rectangular body; an intermediate wall and a plurality of cross walls located inside the internal periphery of the support body, in a grid arrangement, forming a first plurality of hollow sections aligned along the front wall and a second plurality of hollow sections aligned along the rear wall, each first hollow section and each second hollow section being aligned and disposed one behind the other; a support section for each first hollow section and each second hollow section, each support section being connected near to the bottom part of each of the walls forming each first hollow section and each second hollow section, to support the different mechanisms of the machine for forming glass objects; tubular cavities located in a vertical position for each plurality of cross walls, for inserting lubricating pipes or cables, the tubular cavities being formed between each of the cross walls located inside the periphery of the support body; and aligning means located in a bottom part of the support body, for aligning the support block with respect to a determined installation area.

The present invention relates to a roto-linear mechanism for a glassware forming machine adapted to be connected to a funnel-holding arm, a shutter arm, an arm for a blowing head or a similar mechanism, to simultaneously perform an axial and radial movement to each of such arms from a first position to form glass articles to a second position outside the forming process thereof.