Abstract: An automatic wafer orienting apparatus comprising a first orienting device for driving and rotating a wafer thereby orienting the wafer while utilizing a peripheral edge and an orientation cut thereof as the guide, a device for disengaging the thus oriented wafer from the first wafer orienting device, and a second wafer orienting device for re-orienting the wafer by pressing a lateral edge and an orientation cut thereof against orienting members provided on a wafer chuck.

Abstract: In a chart recorder using a fiber optics tube, a method and apparatus for recording signals on a record medium such as a photo sensitive paper by simultaneously scanning a beam in the fiber optics tube both horizontally and vertically.

Abstract: An apparatus for cooling a rod delivered successively from a hot rolling mill while transferring it. The apparatus has a laying reel for forming the rod into successive rings, and a conveyor having a coil receiving portion for receiving the rings and forming them into a densely packed coil having a plurality of overlapped rings with the centers of the rings offset in a transferring direction. The conveyor has at least one step for loosening the coil when it is conveyed over the step. An enclosure is provided for enclosing. The sections of the conveyor between which the step is located. The enclosure has stirring devices for keeping the gaseous heat transfer medium within the enclosure at substantially uniform temperatures, which progressively decrease in the direction of movement of the conveyor. A plurality of coolant nozzles are provided at the step for blowing coolant on to the back of the vertically dropping rings.

Abstract: In a contact drive assembly for use with test equipment for testing, for example, an IC element, a movable contact piece is brought into contact with a terminal pin of the IC element to connect it to a measuring circuit. A flexible tube is disposed adjacent the movable contact piece and compressed air is supplied to the flexible tube to inflate it, biasing the movable contact piece to engage with or disengage from the terminal pin.

Abstract: A magnetic reversal type display panel which provides clear display of records which can easily be raised by an erasure magnet. A liquid dispersion is sealed between two opposed surface plates, preferably in a cell structure. The liquid dispersion contains fine reversible magnetic display grains having magnetic poles of opposite signs tinged with different colors, a dispersion medium and a fine grain thickener. The fine reversible magnetic display grains have a residual magnetic moment within the range of 0.2 to 10 emu/g and a coercive force of not less than 500 oersteds and the liquid dispersion has a yield value of not less than 5 dynes/cm.sup.2.

Abstract: A nutritional composition for pediatrics having specified amino acids and amounts thereof is disclosed.

Abstract: A welded structure and a method for making same wherein a plurality of weld metals, such as martensitic steel and austenitic steel, differing in coefficient of thermal expansion from each other are deposited in a plurality of layers thicknesswise of the welded structure in a gap defined by structural members to be welded in such a manner that a layer of the weld metal of higher coefficient of thermal expansion is covered by a layer of the weld metal of lower coefficient of thermal expansion in a weld formed, to improve brittle fracture strength, fatigue strength and stress corrosion cracking resistance of the weld. By subjecting the welded structure to stress relief annealing treatment, it is possible to produce compressive stress on the surface of the layer of the weld metal of lower coefficient of thermal expansion.

Abstract: A multifarious boring device includes a work table and a head with a variety of machine tools or cutters. The work table and the head are controlled by a computer through a shifting device and a power device. The computer computes distances and directions between the cutters and working points on a workpiece on the work table. Thereby, the shifting means controlled by the computer shifts the work table having the worked material thereon. The power device controlled by the computer powers one of the cutters. Codes of the type of holes and working points are fed into the computer. Thereby, a desired hole can be made at a desired point on the workpiece, and different patterns can be made in different types of workpieces.

Abstract: The magnetic tape device includes a supply reel which has a wound tape therein. The device further includes a pair of pulleys. The axis of the first pulley is, at the same level, in parallel to the axis of said supply reel. The axis of the second pulley is not inclined to a rightangle to the direction of the tape length but is at a twisted position against the position which is in parallel to the axis of the first pulley. Therefore, the tape is twisted when it travels "between" said pulleys. The device also includes a take-up reel, the axis of which is, at the same level, in parallel to the axis of said second pulley. The supply reel and the take-up reel are not supported with one common double shaft but are supported with their own strong shaft at their own places. The device, of course, has other means which ordinary magnetic tape devices have.

Abstract: A bulk polymerization reactor takes the form of a vertical, cylindrical vat of a jacket construction defining a reaction chamber which a rotary drive shaft having an off-center longitudinal section with perforated discs and shearing blades extends vertically through. Successful preclusion of abnormal stagnation of the liquid phase in the reaction chamber during polymerization avoids undesirable coloring in the product while assuring stable polymerization and high yield.

Abstract: An oil-containing waste water treating material, comprising an active carbon upon whose surface is chemically bonded at least one nitrogenous compound which is an amine or a quaternarized derivative thereof.

Abstract: An inorganic ion exchanger prepared by kneading a blend of anatase type titanic acid or amorphous titanic acid with sulfuric acid, hydrochloric acid or phosphoric acid and water, extrusion molding the blend, and thereafter, heat treating the extruded product at an elevated temperature. The inorganic ion exchanger has high strength in water and is suitable for use in the removal or the concentration and recovery of injurious or beneficial materials contained in water.

Abstract: A box annealed steel strip having small strains is produced by: pretreating a steel strip in such a manner that a side edge portion thereof is thermally treated under a different condition from another condition under which the remaining portion, including an opposite side edge, thereof is thermally treated, so as to cause the longitudinal length of the side edge portion to be different from that of the remaining portion; winding the pretreated steel strip under tension to form a coil in such a manner that greater tensile stresses are produced in the other one of the side edge portion and the remaining portion, which one has a longitudinal length smaller than that of the other one, than those produced in the other one; placing the coil on a base plate so that a side edge included in the portion having the greater stresses comes into contact with the base plate, and; box annealing the coil on the base plate in a box annealing furnace.

Abstract: 1,1,3,4,4,6-Hexamethyl-1,2,3,4-tetrahydronaphthalene (HMT), which is an intermediate for the production of acetyl HMT valuable in the art of perfumery because of its musk-like odor properties, is produced with industrial advantages by reacting p-cymene with 2,3-dimethylbutene using a catalytic amount of an anhydrous aluminum halide in the presence of at least one member selected from secondary alkyl halides, tertiary alkyl halides, propargyl halides and allyl halides; and 7-acetyl HMT is obtained by acetylation of the above-obtained HMT.

Abstract: Expanded particles of a crosslinked polyolefin resin, each particle with uniformly spherical shape, having an average diameter of 1.4 to 5.5 mm, an average expansion ratio of 18 to 37 and specific compression coefficient of 1.6 .times. 10.sup.-3 to 4.0 .times. 10.sup.-3, are found to be produced by two-step foaming operations. They are useful for various purposes such as filtrating material, fillers in stuffed specimens and, especially for preparation of molded articles having constricted portions, giving excellent moldings having smooth surface without failure at corner or edge portions.

Abstract: Expanded particles of a crosslinked polyolefin resin, each particle with uniformly spherical shape, having an average diameter of 1.4 to 5.5 mm, an average expansion ratio of 18 to 37 and specific compression coefficient of 1.6.times.10.sup.-3 to 4.0.times.10.sup.-3, are found to be produced by two-step foaming operations. They are useful for various purposes such as filtrating material, fillers in stuffed specimens and, especially for preparation of molded articles having constricted portions, giving excellent moldings having smooth surface without failure at corner or edge portions.

Abstract: An high precision positioning device, wherein a stage is supported for parallel movement relative to a guide member by an air bearing. If the position of the stage along a certain direction is not the desired position, the balance of the supply air pressure of a nozzle for supply air in said certain direction is changed to change the position of the stage to the desired position, thereby effecting high precision positioning of the order of micron.

Abstract: A process for fermentatively producing vitamin B.sub.12, which comprises cultivating a vitamin B.sub.12 -producing microorganism belonging to at least one of the genus Arthrobacter and the genus Propionibacterium in the presence of a pre-cultivation product of a vitamin B.sub.12 -producing microorganism belonging to at least the other genus, and separating vitamin B.sub.12 from the culture broth.

Abstract: A process for isomerization of .alpha.-olefin dimers which comprises dimerizing a lower .alpha.-olefin with a Ziegler type catalyst comprising a nickel compound and an organo-aluminum compound, and then continuing the reaction with addition of at least one compound, prior to deactivation of said catalyst, which is selected from the group consisting of the following organo-halogen compounds of the formulae (I), (II), (III) and (IV), ##STR1## wherein X.sup.1 to X.sup.11 are the same or different and are each a halogen or hydrogen atom or an alkyl group having 1 to 20 carbon atoms and at least one of them in each formula is a halogen atom, R is a hydrocarbon group having 1 to 20 carbon atoms, R.sup.1, R.sup.2 and R.sup.3 are the same or different and are each a hydrogen or halogen atom or a hydrocarbon group having 1 to 20 carbon atoms, R.sup.4 is a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms, R.sup.5 and R.sup.

Abstract: A method of producing resin powder in which a resin solution prepared by dissolving a resin in a water-miscible solvent is sprayed from a nozzle while spraying water from another nozzle located close to the first-said nozzle so as to form fine emulsified droplets of said resin solution in water, then at least a substantial portion of the water-miscible solvent in said emulsified droplets is rapidly transferred into water to produce a suspension of resin powder. The suspension is then filtered. Apparatus for practicing this method is also provided.