Abstract: A control system for the ram of a hydraulic injection molding press, the injection speed or velocity of which is to be precisely controlled according to a predetermined velocity command signal. A programmable relief valve is used to effect accurate control over the flow of hydraulic fluid under pressure to the ram cylinder and is responsive to signals representing diverse conditions of operation of the press.In one application of the concept, velocity and subsequent holding pressure control of a ram are obtained.

Abstract: A method of manufacturing a color display tube of the refocusing type in which supports of insulation material are secured against an apertured metal plate. The supports are provided with a conductor at least on the side remote from the plate, so that the plate constitutes a first set of lens electrodes and the conductors constitute a second set of lens electrodes. The two sets of lens electrodes form a quadrupole lens in each aperture in the metal plate when a voltage difference is applied between the first set and the second set. The defocusing direction of the quadrupole lens is parallel to the phosphor strips of the display screen.

Abstract: A device for processing rare earths with a grinding vessel having ball-shaped grinding bodies and an agitator for rotating the bodies, said vessel having a connection for the supply of liquid hexane andhaving near the bottom a tapping opening communicating with an evaporation vessel, said vessels having connections with a vacuum source and for the supply of rare gas, the evaporation vessel having an outlet for the ground product, and an outlet for the vaporlike products communicating with a condenser, the outlet of the condenser communicating through a control vessel and a hexane supply vessel with the inlet of the grinding vessel.

Abstract: A strand guiding roller to be used in a continuous casting plant for supporting, bending, straightening and deforming a wide strand includes an axle, and a plurality of longitudinally divided rollers arranged on the axle and held thereon by bracing means.

Abstract: A method and apparatus for welding a header to a heat sensitive cap to form an electro-optic device housing without weld flanges. A collet electrode is used to provide a radially compressive force which provides good electric and thermal contact to the wall of the heat sensitive cap and maintains the glass to metal seal under compression.

Abstract: The fiberizer is constructed with a closed chamber provided with an inlet for a waste paper suspension as well as with discharge openings for stock, impurities of low specific gravity and impurities of high specific gravity. The rotor which serves to rotate the stock suspension within the vessel has a central duct which communicates the central part of the chamber with the discharge opening for the impurities of low specific gravity.In one embodiment, the vessel is mounted vertically and has a downwardly tapering wall which terminates at an opening for the discharge of impurities of high specific gravity. In a second embodiment, the vessel has a conical end wall opposite the rotor which has an apex directed towards the rotor. In this embodiment, the opening for the discharge of impurities of high specific gravity can be disposed in the base of this end wall if the vessel is vertically positioned or in a sidewall if the vessel is horizontally oriented.

Abstract: Method of manufacturing a cathode tube and for a ventilator used in its baking process which eliminates the need for a pre-baking process, and polyvinyl-alcohol (PVA) in the phosphor coating and an acrylic resin layer are completely baked and decomposed during the process of the frit-sealing furnace. A ventilator is used in its baking process. The panel portion and a funnel portion are placed in a frit-sealing furnace with a mutually coupled condition so that both portions are frit-sealed and the phosphor is baked. A bulb formed of the panel and funnel portions is provided with a ventilator means to carry out the baking operation.

Abstract: By embedding the impregnated and sintered molding of a dispenser cathode in a holder of metal foil of 10 .mu.m to 100 .mu.m thick, such that any gap between the molding and the holder is less than 10 .mu.m a dispenser cathode can be obtained having a long life and/or quick heating properties.

Abstract: A tire shaped article is blow molded by extruding a tubular parison between movable mold sections, sealing the open end of the parison, injecting air into the parison, moving a lower mold section and the bottom portion of the parison upwardly and expanding an intermediate portion of the parison radially outwardly into a mold cavity.

Abstract: A blade holder for machine blades, especially for blades which are arranged in an annular fashion along the periphery of cutting tools. The blade holder has a blade carrier and a blade holding plate which is detachably mounted on the blade carrier by at least one bolt. The blade holding plate at least partially covers the blade, which is supported on the blade carrier, while leaving the cutting edge exposed. The blade holder plate, which is removable from the bolt, is provided with an opening for a nut which is seated on the bolt.

Abstract: In a method for making an indirectly-heated cathode assembly, the steps of spacing the heater from the cathode substrate with a temporary volatilizable spacer, fixing the positions of the heater and cathode with respect to one another with the spacer therebetween, and then volatilizing the spacer.

Abstract: Method and apparatus for automatically controlling the pouring of molten metal into a series of closed casting molds is disclosed. Molten metal flows in a stream from a lip-pour or bottom-pour casting ladle into a pouring gate at the top of a mold and partially fills the gate. Visible light or infrared radiation is emitted from the metal surface in the gate and is detected by a sensing device. The sensing device generates a signal which is a function of the radiation received, and therefore the apparent area of the surface of metal in the gate. The signal operates a ladle control mechanism to control the flow rate of the stream to keep the gate level substantially constant during pouring.

Abstract: A rock-crushing apparatus is provided with a stationary annular member in which a rock-crushing mechanism is supported. The rock-crushing mechanism has at least two pivoted rock-crushing shanks which are successively impacted by an eccentrically mounted member. The eccentrically mounted member is rotatably driven by a motor and flywheel assembly. The shanks may be biased outwardly so as to trap rocks between the shanks and the stationary member whereupon the successive impacts from the eccentrically mounted member progressively crushes said rocks.

Abstract: In the operation of a grinding plant, including a motor-driven rod mill and an arrangement for controllably supplying material to be ground to the rod mill, the supply of material to the mill is adjusted in a manner such that the power consumption of the mill motor is maintained substantially constant at a value which exceeds the power consumption of the mill motor at the occurrence of a rod-jam by approximately 0.5-2%.

Abstract: A rolling mill having a rotary bowl supported on a casing of a step-down ve transmission has two parallel gear trains leading from a common input shaft to a spur output gear wheel arranged horizontally beneath the bowl. A vertical drive shaft is splined at opposite ends and transmits the gear wheel drive, without relative rotation to the bowl. The bowl is provided with horizontal and vertical bearings which are separate from the bearings of the output gear wheel. The drive shaft, by canting slightly, is able to transmit drive without lateral thrusts from the bowl to the gear wheel. As a result, wear of the gear wheel teeth produced by small misalignments of the axis of the bowl and gear wheel during operation of the mill is avoided and the life of the mill is prolonged. Provision is made for vertical removal of the shaft and the splined diameter at the lower end is less than that at the upper end to facilitate this. Involute teeth are used for the splines.

Abstract: Method of regeneration of plastics material with higher quality from scrapped plastics, in which scrapped plastics having deteriorated surface layer caused by, such as, exposure to ultraviolet rays etc. are chopped, broken or crushed into fragmented product and this product is subjected to agitation in the presence of aqueous medium and solid particles exhibiting higher hardness than the product to scrape off the deteriorated surface layer of the scrapped plastics, whereupon the plastics material is recovered.

Abstract: In an assembly of at least two electrodes which are connected together in an insulating manner, said electrodes are kept at a given distance from each other by at least one member of an electrically insulating material situated between the electrodes which comprises a core which determines the distance between the electrodes and a jacket which directly adheres to the electrode material by heating. The material of the core has a higher melting point than the material of the jacket so that the core during effecting a connection between the jacket and the electrode material maintains its shape.

Abstract: An implosion-resistant cathode ray tube has an envelope with a flared portion sealed to a skirt portion joined to the viewing portion of a face plate member. A pair of substantially flat rimbands each has one or more bracket members affixed thereto and an adhesive applied to the inner surface thereof. The rimbands are positioned on the skirt portion rearward of the jointure of the viewing and skirt portions and formed to encircle and adhere to the skirt portion by a strap member applying a compression force to the rimbands.The cathode ray tube is fabricated by selecting and positioning a pair of substantially flat rimbands in a jig for positioning brackets, welding the brackets to the rimbands, applying adhesive to the inner surface of the rimbands, placing the rimbands on the tube and encircling the rimbands with a strap member to form and compress the rimbands and adhere the adhesive to the skirt portion of the face plate member.

Abstract: An agitator mill for continuous fine grinding and dispersion of solid constituents suspended in a liquid has a grinding container, an agitator mounted for rotation in the grinding container, a charge of grinding elements within the grinding container, an inlet into the grinding container for flow of grinding stock to the charge of grinding elements and an outlet from the grinding container for flow of grinding stock away from the charge of grinding elements, pressure means for the application of pressure to the charge of grinding elements to vary the volume of the charge of grinding elements, the agitator having a shaft for rotating it, a drive bearing in the region of one end of the grinding container to permit rotation to be applied to the shaft in the region of a drive end of the shaft and an end bearing for the other end of the shaft, the said end bearing being disposed within the charge of grinding elements.

Abstract: A grinder apparatus for destroying disposable hypodermic syringes, needles, and the like having a feeder valve for delivering varying sized objects to a grinder which has a plurality of flexibly connected grinding means attached to a rotating shaft and an arcuate screen cooperating with the grinding means to facilitate comminuting of articles supplied by the feeder means.