Abstract: In a glassware forming machine, an actuating assembly of an operative member has a connecting frame; a shaft for supporting the operative member coupled to the connecting frame to translate and rotate about a fixed axis thereof; a pneumatic jack for displacing the supporting shaft along the axis provided with a rod connected to the supporting shaft; a cam and tappet device for rotating the supporting shaft in opposite directions about the axis; and a hydraulic device for stabilizing the motion of the shaft; the rod having at least one hollow portion for housing the hydraulic motion stabilizing device.

Abstract: In a glassware forming machine, an actuating assembly of an operative member has a tubular connecting body; a shaft for supporting the operative member coupled to the connecting frame to translate and rotate about a fixed axis thereof; a pneumatic jack for displacing the supporting shaft along the axis; a cam and tappet device for rotating the supporting shaft in opposite directions about the axis and having a chamber and a cam and tappet assembly housed in the chamber and lubricated by a lubricating liquid contained in the chamber; and a hydraulic device for stabilizing the motion of the shaft; the chamber and the hydraulic stabilizing device constituting part of a single closed hydraulic circuit for feeding a common lubricating and operative liquid to the cam and tappet device and to the hydraulic stabilizing device.

Abstract: An I.S. machine has a blankmold which is open at the top and includes inner and outer annular top sealing surfaces. Associated with the blankmold is a baffle including a body having a cup shaped portion closed with a vertical cylindrical bore open at the bottom, an annular bottom sealing surface for sealingly engaging the blankmold outer annular top sealing surface, and a top having a hole. A tubular sleeve communicates with the hole and extends vertically upwardly from the top of the body. A piston has a cylindrical head including a top surface, a cylindrical sealing surface and an annular bottom sealing surface having a plurality of radial notch means across the bottom thereof. A tubular rod extends vertically upwardly from the top surface for slidable displacement in the tubular sleeve, and a collar is secured to the top of the rod.

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: An I.S. machine has a blankmold which is open at the top and includes inner and outer annular top sealing surfaces. Associated with the blankmold is a baffle including a body having a cup shaped portion closed with a vertical cylindrical bore open at the bottom, an annular bottom sealing surface for sealingly engaging the blankmold outer annular top sealing surface, and a top having a hole. A tubular sleeve communicates with the hole and extends vertically upwardly from the top of the body. A piston has a cylindrical head including a top surface, a cylindrical sealing surface and an annular bottom sealing surface having a plurality of radial notch means across the bottom thereof. A tubular rod extends vertically upwardly from the top surface for slidable displacement in the tubular sleeve, and a collar is secured to the top of the rod.

Abstract: An I.S. machine has a blankmold which is open at the top and includes inner and outer annular top sealing surfaces. Associated with the blankmold is a cup shaped baffle having an annular bottom sealing surface. A tubular sleeve extends vertically upwardly from the top of the body. A piston has a cylindrical head including a top surface, a cylindrical sealing surface and an annular bottom sealing surface having a plurality of radial notch means across the bottom thereof. A tubular rod extends vertically upwardly from the top surface for slidable displacement in the tubular sleeve. The collar is displaced vertically downwardly to bring the cup shaped portion annular surface into sealing engagement with the blankmold.

Abstract: An I.S. machine comprises a plurality of individual sections arranged in side by side relation. Each section has a section frame having a top wall having a front and a back and opposed sides on which is mounted a blank station including a mold opening and closing mechanism for forming a parison from a gob of molten glass, a blow station including a mold opening and closing mechanism for forming a parison into a bottle, and an invert and neck ring holder mechanism supported which is located between the mold opening and closing mechanisms for transferring a parison therebetween. The machine also has a baffle mechanism includinga blowhead carrier, a motor having an output, a transmission for transmitting the output of the motor to the blowhead carrier to displace the carrier, a housing for housing the transmission. The housing is secured on the top wall proximate the front thereof.

Abstract: A baffle assembly for use in a glassware forming machine to provide a settle blow to settle a gob in a parison forming mould cavity and a mould closing surface to close the mould cavity comprises a first member which comprises a mould cavity closing surface and settle blow air passages opening to positions spaced from the mould closing surface, and a second cup shaped member mounted on the first member for axial movement between an extended position and a second position in which a circumferential locating surface on the second member is substantially level with the end surface of the baffle head.

Abstract: Mechanism for moving an operative member such as a blowhead funnel or baffle in a glassware forming machine comprises a piston rod on which the operative member may be mounted and two piston heads on the rod which may be operated independently of each other, one to cause axial movement of the rod and the other to cause rotation of the rod.

Abstract: A moving mechanism for moving a baffle (16), funnel or blowhead. A support (14) for the member is pivotally mounted on a first horizontal axis (20) on an arm (18) which is mounted to turn about a second horizonal axis (22) to move the member between operative and out-of-the-way positions. Driving means (24) is operable to turn the arm about the second horizontal axis and orientation means (42) maintains the member in a constant orientation during movement of the arm.

Abstract: A moving mechanism for moving a baffle (16), funnel or blowhead. A support (14) for the member is pivotally mounted on a first horizontal axis (20) on an arm (18) which is mounted to turn about a second horizontal axis (22) to move the member between operative and out-of-the-way positions. Driving means (24) is operable to turn the arm about the second horizontal axis and orientation means (42) maintains the member in a constant orientation during movement of the arm.

Abstract: The plunger mechanism is for use in moving a plunger into or out of a mould cavity and has a piston movable in a cylinder with a piston rod projecting from the piston. A plunger can be mounted on the piston rod. A passage passes through the piston and the piston rod and communicates with a chamber in the plunger or with the mould cavity. A tube which can be connected to a source of air under pressure or to a vacuum source passes through the cylinder and enters the passage. The gap between the passage and the tube is sealed by an inwardly-contracting ring with an overlapping joint which makes sealing contact around the tube. A ring of resilient material may encircle the inwardly-contracting ring to seal the gap between the inwardly-contracting ring and the wall of a recess in which it is mounted.

Abstract: The plunger comprises a base portion adapted to be mounted on a piston rod and a tip portion which has a glass-engaging surface and a projection which enters a recess in the base portion. A generally cylindrical passage is defined by the base portion and the projection of the tip portion, the portion of the wall of the passage defined by the base portion being screw-threaded. A screw-threaded member is threadedly received in the passage and serves to retain the tip portion on the base portion by engaging a lip of the projection which projects across a portion of the passage.

Abstract: A method of cooling a blank mould which is used for making a parison in a glass container forming machine. The mould is provided with air passages which communicate with air passages in a baffle of the mould when the baffle is in position on the mould and air is blown through the passages in the baffle into the passages in the mould to cool the mould. The method may be used whether the parison is formed by blowing or by pressing. A baffle for use in the method is also claimed.

Abstract: An arm which may support a baffle or blowhead is adapted at one end for clamping to a vertical shaft. First and second holder units are supported by the arm between its ends. Each unit has a holder open at its bottom and into which a baffle or blowhead may be inserted from below. A spring biased latch is provided for each unit and adapted to prevent relative rotation between the holder and its associated baffle or blowhead. A manifold in the arm communicates with each unit by exposed conduits.

Abstract: Improved system for the fabrication of preforms used in the production of glass containers in I.S. machines, employing the blow-blow process to reduce the time delay of mechanical movement between the stages of crown formation and commencement of counterblowing, and the increase in counterblowing or molten glass gob inflation, thus improving glass distribution in the walls of the preform as well as in the finished container, resulting in an improved quality container and in increased production.

Abstract: Method and apparatus for forming glass containers by the blow and blow process in which a parison mold and blow mold are positioned relative to each other, such that parisons can be transferred by an invert arm. The parisons are formed with their necks down in the parison mold from a charge of glass delivered thereto, and vacuum is applied to the neck mold to settle the molten glass in the neck mold about a special neck pin to thereby form the finish portion of the container. The neck pin is pulled and counterblow of the charge into parison form is accomplished and the parison is transferred from the parison mold to the blow mold where it is expanded into final shape. The parison mold is coated with a "solid film lubricant" which provides a surface that has an insulating effect and requires less "swabbing" over its useable life.

Abstract: Apparatus for forming glass containers by the blow and blow process in which a parison mold having a plurality of cavities is centrally positioned relative to a pair of blow molds having a plurality of cavities. The parisons are formed with their necks down in the parison mold from a charge of glass delivered to each cavity. Vacuum is applied to the neck area of the mold to form the finish portion of the container. A neck pin is pulled and air under pressure is fed to the interior of the area from which the neck pin is drawn to expand the glass within the parison mold at a continuous rate until the glass within the parison mold comes in contact with a baffle which closes the upper end of the parison mold. The parison mold is then opened and the parisons are transferred alternately from the parison mold to the blow molds where they are expanded into final shape.

Abstract: Two rotary snubbers are shown, one having two movable vanes which force oil through two sets of successively closed openings in a stationary ring to achieve the snubbing force, and another version having one stationary vane and movable ring with the snubbing force nevertheless achieved in both directions with the two sets of openings defined in the ring.

Abstract: In apparatus for molding glass into hollow-shaped articles such as glass containers, glass is delivered to a parison mold wherein the glass is shaped either by a plunger or by a counter-blow with the end of the parison mold, through which the glass is delivered, closed by what is termed a "baffle." The mechanism for moving the baffle on a conventional IS machine must be capable of moving the baffle from an upper, radially displaced position, to a lower aligned position over the mold. The operation of the baffle seating motion is accomplished by the use of a vertically reciprocable, fluid-operated motor in which a baffle arm carrying piston rod of the motor is turned about its axis during its upward and downward movement. The control of the fluid supply to the motor and the exhaust from the motor is such that the rate of movement is monitored and controlled.