Abstract: The disclosure provides an improved construction for a ten-section IS glass forming machine which incorporates on and in the machine frame, all of the control valving and piping necessary to operate all of the sections of the machine according to any selected one of a plurality of different types of processes, resulting in a significant decrease in the proliferation of pipes and valves that were previously required to be added to, and then removed from, the machine as the machine operation was changed from one type of forming process to another. The apparatus of this invention further applies individual controls for effecting the cooling of each parison mold cavity and each blow mold cavity of each multi-cavity section of the machine.

Abstract: A mine roof bolt of the type used in supporting the ceiling or roofs of underground mine passages is disclosed. The mine bolt includes an elongated shaft, threaded on one end with a stop member in the form of a hemispherical head provided at the other end. A bolt head is force fitted onto the shaft into abutment with the outer stop member. Similarly, a washer is also force fitted onto the shaft and into abutment with the bolt head. An inner stop in the form of an annular bead is formed on the shaft adjacent the underside of the washer.

Abstract: Two sections of a multiple section-type of glass forming machine are disclosed in which each section is comprised of a single parison forming station and two blow molding stations with a pair of transfer arms for alternately transferring and reverting the formed parisons from the parison station to the blow molding stations. A take-out means is provided for each blow molding station to move the blown ware to a dead plate. A sweepout device moves the ware from the cooling dead plate to a conveyor. A common conveyor for all of the forming machine sections is provided for conveying the ware away from the sections which are physically arranged as in-line forming machine sections.

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: An improved apparatus for the transfer of mold rings in a centrifugal casting process. One type of forming process for the funnel portions of color television picture tube envelopes utilizes a centrifugal casting process for the glass. This process requires a main mold body. An indexing mechanism moves from a station at which the mold ring is deposited on the main mold to a station where the mold ring is removed from the main mold after completion of the casting process. A movable shuttle member is connected to pivotally mounted pairs of support fingers for the mold rings through connecting rods. An external drive motor operates a single actuator at each machine cycle. This single actuator causes the entire shuttle to shift and a mold ring to be deposited at one station and a second mold ring to be simultaneously picked up at another station. Because of the mechanical linkage design, one pair of support fingers always opens while all the others close when the single actuator is operated.

Abstract: A compact valve block for an IS glass forming machine in which a plurality of vertically positioned poppet valves which are in two rows and in staggered array, are controlled by solenoid operated pilot valves of equal number to the poppet valves. An air manifold communicates with all of the poppet valves and the air is selectively delivered to the "kiss block" of an IS machine to provide the functional operation of various mechanisms on the machine. The deenergization of the solenoid operated pilot valve associated with any of the poppet valves permits the poppet valve to return under spring pressure to connect its output passage to an exhaust passage. All the exhaust passages on all of the poppet valves enter a common header which in turn communicates with an exhaust chamber, thus muffling the sound of air normally associated with the exhaust of the pneumatic motors of an IS machine.