Abstract: An apparatus for injection molding a product having a partly thin portion includes a molding die including a male die and a female die for defining a cavity having a volume larger than a volume of the product. A gate is provided to permit molten resin material from an injection molding machine to be injected into the cavity. A slide block disposed in either the male die or the female die has in cross section a dimension corresponding to a dimension of the thin portion of the product. The slide block is movable between a retracted position where the volume of the cavity is substantially maintained and an advanced position to project into the cavity to form the thin portion. A drive is provided for moving the slide block to the advanced position before the resin material injected into the cavity is solidified.

Abstract: A cobalt-containing ferromagnetic iron oxide powder of which constituent particles each is an aggregate of cobalt-containing ferromagnetic iron oxide micorparticles and has a spherical shape of 5 to 200 .mu.m in diameter has an angle of repose of 35.degree. or smaller and accordingly excellent flowability, as well as to a process for producing the iron oxide powder, are provided. This ferromagnetic iron oxide powder consisting of spherically shaped particles, are easily dispersed in an organic binder to return to the original state of microparticles, and provide improved magnetic characteristics when used as a material for magnetic recording media such as a magnetic tape and the like.

Abstract: A storage system which comprises a first storage unit such as an optical disk incapable of rewriting; a second storage unit such as a magnetic disk capable of rewriting; a control table for registering addresses of the first storage unit in which data are desired to be rewritten and addresses of the second storage unit in which the write-in data are temporarily stored; and a control unit for controlling the second storage unit in accordance with this control table such that the data desird to be rewritten into said addresses of the first storage unit are temporarily stored in the corresponding addresses of the second storage unit. The present invention enables the first storage unit incapable of rewriting to operate as is capable of rewriting. Using an optical disk or other large-capacity storages as the first storage unit will provide a mass storage system capable of rewriting.

Abstract: A vanity case includes a receptacle and a cover hinged with each other at rear ends thereof, the cover being maintained in a closed position by engagement between latch tongues formed on the receptacle and the cover. The receptacle is formed at the front end with a recess within which is slidably disposed a push piece having a front wall and an arm integrally formed with the front wall through a thin flexible section which permits the arm to tilt relative to the front wall. The upper end of the arm is positioned closely adjacent the lower surface of the cover, and the rear end of the arm abuts against the inner wall defining the recess and, upon rearward movement of the push piece, slides on the inner wall upwardly to tilt the arm whereby the upper end of the arm forces the cover in upward and forward directions to release the engagement of the latch tongues.

Abstract: A tube container for receiving semifluid material includes a tubular body formed of an elastic synthetic resin, a neck portion formed of a synthetic resin and integrally mounted on the body at a shoulder, and a valve member fitted in the neck portion. The valve member includes a side wall, an upper end plate, a valve sheet and a stopper. The side wall provides a tight fit with an inner surface of the neck portion and the end plate is formed with a passage for flow of the material to an outlet in the neck portion. Placed on the end plate is the valve sheet which is movable between the end plate and the stopper to open or close the passage in accordance with pressure applied to the body. Upper portion of the stopper is located adjacent to the outlet so as to minimize a space therebetween.

Abstract: A tubular container is molded with a cap by defining; at least one portion of a cavity for molding a neck portion between a female die for receiving a cap having a screw on the inside thereof and a male die having a fixed guide rod for insertion into the cap centrally thereof. A top end portion of a preformed container body is partly inserted into the cavity. A synthetic resin, which possesses compatibility with the container body and is not fused together with the cap, is injected into the cavity to form the neck portion integrally with the container body.

Abstract: A tubular container molding method includes the steps of inserting a core block having an upwardly projected annular flange at the top end into a preformed tubular member, closing the mold and thereby pressing an upper marginal portion of the tubular member against a cavity mold and bending inwardly such upper marginal portion to form a shoulder portion of the container, urging the inwardly bent marginal portion against an interior surface of the cavity mold by the annular flange to hold the shoulder portion between the core block and the cavity mold, and injecting molten resin into an air gap defined between the core block and the cavity mold, thereby molding conical and neck portions of the container integrally with the shoulder portion.

Abstract: In cylindrical insert loading apparatus of the type wherein an insert transfer unit is reciprocated by a transfer device between stationary and movable metal molds of a die cast machine and an insert supply unit, the insert transfer unit comprises a movable frame and insert loading cylinders are mounted on the movable frame with their operating axes cross with each other. After the inserts have been supplied from an insert supply furnace to the operating ends of insert loading cylinders, the insert transfer unit is moved between the stationary and movable molds while maintaining horizontal attitude. The movable frame is moved in the axial direction of the die cast machine until the insert transfer unit collides against the movable metal mold to align the inserts with the insert receiving sections in the movable metal mold. Thereafter, insert loading cylinders are operated to load the inserts and the insert transfer unit is returned to the insert supply furnace.

Abstract: An inverted U-shaped frame is provided to straddle the injection molding machine, and a chain conveyor provided with spaced apart groups of L-shaped insert carriers is moved along the frame. An insert chute is provided for working side of the frame for loading cylindrical inserts on the carriers. An insert transfer device is provided on the other side of the frame for transferring the inserts from the chain conveyor to an insert holder which is swung between the insert transfer device and the metal mold. The holder holds the inserts in a pattern corresponding to the pattern of the inserts when they are disposed in the metal mold. The chain conveyor is moved intermittently at a predetermined feed pitch. An insert detector is provided near the chute and when the detector detects that an insert carrier is not loaded with an insert, the direction of movement is reversed to return the empty insert carrier to the chute to load an insert thereon.

Abstract: An aluminum electrolytic cell wherein, in a sealed type electrolytic cell having a raw material aluminum chloride feeding port and chlorine gas discharging ports in a top section and a molten metal reservoir in a bottom section and provided with an electrode element in the intermediate section so that a molten salt electrolytic bath containing aluminum chloride is electrolyzed in the cell and molten aluminum is collected from the metal reservoir in the bottom section, the electrode element is formed of funnel-shaped electrodes laminated at a fixed distance between the electrodes or a pair of right and left electrode plate groups opposed to each other at a fixed separation between them and inclined to be lower inward at least one intermediate bi-polar electrode is provided between both cathode and anode and a gas rising passage is formed between the outer edges of the funnel-shaped electrodes or the electrode plates and inner wall of the cell to prevent the rechlorination of the aluminum after electrolysis.

Abstract: The disclosed composite fabric, useful as a substratum for artificial leather, comprises a woven or knitted frabic and at least one non-woven fabric firmly bonded to the woven or knitted fabric, and is produced by providing a precursory sheet with two or more layers from a woven or knitted fabric and one or more fibrous webs which consist of numerous extremely fine fibers having an average diameter of from 0.1 to 6.0 microns, and uniformly impacting the fibrous web surface of the precursory sheet with numerous fluid jets ejected under a high pressure of from 15 to 100 kg/cm.sup.2, at a ratio of a total impact area of the fluid jets on the precursory sheet surface to an area of the precursory sheet surface to be impacted of at least 1.

Abstract: A process for producing aluminum by electrolyzing fused aluminum chloride together with an alkali metal halide to produce chlorine gas at the anode surface and molten aluminum at the cathode surface where the electrolytic bath is of a molten mixed salt consisting essentially of 2 to 15% by weight AlCl.sub.3, 15 to 70% by weight CaCl.sub.2 and/or MgCl.sub.2, provided the amount of CaCl.sub.2 does not exceed 40% by weight, and 83 to 15% by weight NaCl. Metallic aluminum can be produced by electrolyzing aluminum chloride at a high current efficiency reaching about 90 to nearly 100%.

Abstract: Synthetic fibers capable of absorbing aqueous medium are manufactured by simultaneously extruding the fiber material and a second material in a core and sheath arrangement. Turbulence is produced in the zone where these two materials combine which results in undulations in their cross-sections. The second material is then dissolved away with a solvent to leave a fiber with an undulating surface. When the second material is extruded as the core, the fiber is hollow with undulations on the inside while when the second material is extruded as the sheath the solid fiber has an undulating outer surface.

Abstract: Thermoplastic synthetic polymer fibers having powder of metal attached to the surface of the fibers are subjected to a treatment for increasing the oxidation number of said metal from zero to a plus value, that is, oxidation in a broad sense. The resulting conductive synthetic fibers support a layer of a compound of the metal, i.e. an oxidized product of the metal in a broad sense, firmly and undetchably thereon, and have as low an electric resistivity as 10.sup.5 .OMEGA./cm or less. The conductive fibers can be blended to ordinary synthetic fibers to improve their antistatic property, or can be substituted for expensive metal fibers. The thermoplastic synthetic polymer fibers are sheath-core fibers wherein the sheath has a lower melting point than the core.

Abstract: The present invention is to provide a method of producing an adsorbent composed of micro-fibrils, comprising the steps of mixing two synthetic polymers in a mixing ratio of 20/80 - 80/20, both of said polymers being incompatible with each other when they are intimately mixed, subjecting the mixture in molten state to an extrusion molding to shape the article in the form of threads, ropes or films where at least one of the polymers assumes the forms of micro-fibrils, and thereafter treating the shaped article with a solvent which is incapable of dissolving or decomposing one polymer but capable of dissolving or decomposing the other constituent polymer.The polymer adsorbent obtained by the above method is characterized by superior adsorbing activity and high treating efficiency and can be used for a wide range of purpose of adsorption.

Abstract: The disclosed composite fabric, useful as a substratum for artificial leather, comprises a woven or knitted frabic and at least one non-woven fabric firmly bonded to the woven or knitted fabric, and is produced by providing a precursory sheet with two or more layers from a woven or knitted fabric and one or more fibrous webs which consist of numerous extremely fine fibers having an average diameter of from 0.1 to 6.0 microns, and uniformly impacting the fibrous web surface of the precursory sheet with numerous fluid jets ejected under a high pressure of from 15 to 100 kg/cm.sup.2, at a ratio of a total impact area of the fluid jets on the precursory sheet surface to an area of the precursory sheet surface to be impacted of at least 1.