Abstract: A transfer mechanism for transferring glass parisons in an I.S machine from a blank station to a second station comprises two neck-ring mechanisms which operate alternately. While one neck-ring mechanism carries parisons from the blank station in a vertical plane to the second station, the other neck-ring mechanism rotates about a vertical axis to move out of the way of the first while moving from the second station back to the blank station.

Abstract: A section of an I.S. machine for manufacturing glass containers. A gob of molten glass is delivered to a blank mold to be formed into a parison. The formed parison is then transferred to a blow mold so that an initial blowing operation can be performed to stabilize the parison. The blow mold with the stabilized parison is then transferred linearly to a final station where the parison is blown into the container.

Abstract: A method for manufacturing glass containers in a section of an I.S. machine. A gob of molten glass is delivered to a blank mold to be formed into a parison. The formed parison is then transferred to a blow mold so that an initial blowing operation can be performed to stabilize the parison. The blow mold with the stabilized parison is then transferred linearly to a final station where the parison is blown into the container.

Abstract: A heat transfer system includes first and second surfaces which are at different temperatures. A bed of fluidizable material is provided in a cavity which is located between the first and second surfaces, and gas from a supply means is supplied to the cavity to form a fluidized bed from the fluidizable material and thereby to enable heat to be transferred between the first and second surfaces. Control means is provided for alternately forming and collapsing the fluidized bed in order to regulate the rate of transfer of heat between the first and second surfaces. The heat transfer system has particular application in the cooling of a forming mould in a glassware forming system.

Abstract: There is described an improved method of cooling a blank mould used for the formation of a parison in glassware forming apparatus. Jets of cooling gas are delivered on to the outer mould surface through vertical rows of apertures and the gas which impinges on the outer mould surface is prevented from rebounding away from the mould surface but is caused to flow through a confined space close to the mould surface so that the cooling gas removes the boundary layer of air which is in contact with the outer mould surface and thereby markedly improves the cooling effect of the gas. Between the vertical rows of apertures there are provided vertical channels into which the cooling gas can expand and through which it will exhaust after it has effected cooling of the outer mould surface.

Abstract: A glassware forming system includes a forming mould and cooling means for removing heat from the forming mould. The cooling means comprises a cooling chamber which is spaced from an external surface of the forming mould by a cavity which contain fluidizable material. Means is provided for circulating a cooling fluid, such as water, through the cooling chamber. The cooling means further includes means for forming a fluidized bed from the fluidizable material within the cavity whereby heat may be transferred from the mould to the cooling fluid when a fluidized bed is formed in the cavity. The rate of transfer of heat from the external surface of the forming mould may be varied by controlling the rate of supply of gas to the cavity and thereby varying the degree of fluidization of the fluidized bed, by varying the rate of flow of cooling fluid through the cooling chamber, or by varying the temperature of the cooling fluid which is passed into the cooling chamber.

Abstract: A control system for a cyclic process includes a pulse generator incorporating three rotatable gears for generating pulses. A first gear having n ferromagnetic teeth is mounted on a main generator shaft for generating a train of pulses in a magnetic perception head upon rotation of the main generator shaft, and also mounted on the main generator shaft is a second gear wheel having n + 1 teeth. The second gear wheel drivingly engages with a third gear wheel having n teeth which is mounted for rotation on another shaft, and the second and third gear wheels each carry a ferromagnetic element movement of which past respective further magnetic perception heads causes the generation of a single pulse during each rotation of the second and third gear wheels.