Abstract: A method of producing amorphous alloy thin strip suitable for use in commercial frequency band transformers utilizes a high-quality molten steel suitable for electromagnetic silicon steel plates but containing insufficient silicon and boron. The molten steel is divided when tapped out of a converter or after a vacuum degasifying steel making process, and silicon and boron are added with heating to create the desired composition. The molten steel is formed into thin amorphous alloy strip by quenching.

Abstract: A gaseous atmosphere having a predetermined composition is formed near an injected molten metal flow and an injection nozzle of the atmospheric gas so as to manufacture a thin metal strip exhibiting excellent surface property. A thin strip manufacturing apparatus includes an injection nozzle 1 for injecting a molten metal onto a cooling roll 2, an atmospheric gas injection nozzle 3 for injecting an atmosphere having a predetermined composition, a sensor 5 for measuring the concentration of the atmospheric gas, a control device 6 for adjusting a flow rate of the atmospheric gas on the basis of the output of the sensor 5, a cover 4 for maintaining the concentration of the atmospheric gas, and a heating device for preventing cooling of the injection nozzle 1.

Abstract: A method of guiding and transferring a rapidly quenched metallic tape includes steps of peeling the rapidly quenched metallic tape produced by solidification through rapid quenching on a circumferential surface of a single cooling roll rotating at a high speed, introducing the metallic tape into a cylindrical transfer guide to a pinch roll unit arranged at a terminal end of the transfer guide to catch the metallic tape by the pinch roll unit, and moving the pinch roll unit to a winder for the metal tape. The metallic tape is fed in the transfer guide substantially without being in contact with the transfer guide.

Abstract: Concrete/mortar is manufactured with a small amount of water by using fine polymer particles containing frozen water. The water becomes available when the particles thaw or the particles may be used directly without freezing.

Abstract: Naphthoquinone having a purity of higher than 95% is separated from an aqueous slurry of naphthoquinone and phthalic acid prepared by contacting, with an aqueous medium, a reaction mixture gas containing naphthoquinone and phthalic anhydride formed by a catalytic vapor phase oxidation of naphthalene. An extraction of naphthoquinone is carried out with a chain or cyclic saturated hydrocarbon at 60.degree. to 110.degree. C. under the condition adjusting pH to 1.2 to 5 and substantially dissolving phthalic acid in the aqueous phase and leaving resinous materials as a bottom.

Abstract: The known muffler of an industrial engine, in which a channel communicating with an exhaust gas outlet is integrally formed on the inside of a muffler main body made of an aluminum diecast, and an inner lid is mounted to the open side of the channel to form an exhaust gas passageway serving also as a tail pipe, within the muffler main body as disclosed in Japanese Utility Model Application No. 63-127369 (1988) is improved. The improvements reside in that a cross-section area of the channel is reduced gradually or in a stepwise manner from its inlet towards the exhaust gas outlet so as to prevent carbon from adhering to the exhaust passageway, and in that at the exhaust gas outlet is formed a projecting wall adapted to butt against the inner lid, integrally with the muffler main body so as to prevent the exhaust gas escape without passing through the exhaust gas passageway.

Abstract: Concrete/mortar is manufactured with a small amount of water by using a dry clathrate water mixture. The dry clathrate water is used in a state wherein the water is impregnated into a water absorbent polymer.

Abstract: Disclosed is a construction material containing bitumen comprising (A) a polyol component, the polyol component consisting essentially of (a-1) a hydroxy-polyoxyalkylene ether of bisphenol A and/or bisphenol F, and (a-2) an aliphatic polyol, (B) a polyisocyanate component, (C) a bitumen, and/or (D) an aggregate. The construction material has improved water-proof and mechanical properties.

Abstract: Method and apparatus for analyzing the propagation of arterial pulse waves in a patient's circulatory system. The apparatus comprises R-wave detecting means for outputting an R-wave timing signal at the time of detection of the R-wave component contained in a detected electrocardiographic signal. A pulse wave peak detecting means is provided for outputting a peak timing signal at the time of the detection of a selected peak of the arterial pulse wave detected in the peripheral blood vessels of a patient's circulatory system. A pulse wave propagation time counter is provided for successively counting the time interval from the input of the R-wave timing signal to the input of the peak timing signal, and a pulse wave propagation time analyzer is provided for analyzing the distribution of pulse wave propagation times and other detected biophysiological parameters, from which an effective diagnosis of the condition of the patient's circulatory system can be made.

Abstract: An apparatus for transferring a rapidly quenched metallic tape, which is produced by solidification through rapid quenching on a circumferential surface of a single cooling roll rotating at a high speed, from the cooling roll into a winder, comprises a transfer means provided with a pinch roll unit for catching and feeding out the peeled metallic tape, a fan for breaking and discharging the metallic tape fed out from the pinch roll unit, and a dust device for recovering metallic pieces and powder generated in the breakage of the metallic tape by the fan.

Abstract: A container for storing blood for a long period of time to keep the quality of the blood in good condition, is formed of a laminated film type bag composed of at least one thermoplastic resin film layer and at least one addition polymerization type silicone rubber film layer, the surface of the laminated film which comes in direct contact with the blood is made of the addition polymerization type silicone rubber film layer; the thermoplastic resin film layer has a permeability to carbon dioxide gas of 6,000 to 70,000 ml/m.sup.2.24 hr. for a thickness of 0.025 mm at 25.degree. C.; and the whole laminated film type bag has a permeability to carbon dioxide of 5,000 ml/m.sup.2.24 hr.atm at 25.degree. C. for storing whole blood and packaged red blood cells, and a permeability to carbon dioxide of 2,000 to 9,000 ml/m.sup.2.24 hr. atm at 25.degree. C. for storing platelet preparations.

Abstract: A cuff pressure regulator for controlling the pressure in an annular, collapsible and inflatable bag-like cuff of a cuffed endotracheal tube inserted in a patient's trachea, while allowing superposition of the patient's ventilatory pressure variation on the cuff pressure. The regulator has a second chamber communicating with the inside of the cuff and a third chamber communicating with the inside of the tube inserted in the patient's trachea. A diaphragm portion of the partition between the second chamber and the third chamber is connected to a cuff pressure setter, so that the pressure in the second chamber is set at a desired level by the setter and controlled in response to the pressure variation in the third chamber.

Abstract: A preserving solution for blood or packed blood cells comprising an anticoagulant solution containing citric acid, sodium citrate and glucose; an effective amount of glycerin; and an effective amount of mannitol. The use of the blood preserving solution makes it possible to preserve blood at a low temperature of from the freezing temperature of plasma (about -1.degree. C.) to 3.degree. C. and to extend the period of preservation to 4 or 5 weeks without any further special additives.

Abstract: Cooling rolls which receive a falling stream of a metal melt, and rapidly cooling and solidifying it. Each of the cooling rolls comprises a roll base body and a sleeve which is fitted around a barrel periphery of the roll base body and forms a cooling water flow path between the roll base body and the sleeve. The sleeve is only partially tightly fixed to the roll base body. End portions of the sleeve are joined to the roll base body in such a soft structure that movement of the sleeve in the roll axial direction due to the thermal expansion is not interrupted at end portions of the sleeve.

Abstract: A device for opening and closing the seating plate of the lavatory unit of the seat type wherein the unit is provided with only the seating plate. The device includes a spring for connecting a movable member attached to the unit body with the seating plate freely swingably pivoted on the unit body at one end rim thereof, an opening mechanism for moving the movable member to reverse the urging direction of the spring from its seating-plate-closing direction to its seating-plate-opening direction, and a closing mechanism for causing the seating plate to be closed. When the opening mechanism is made operative, the urging direction of the spring is reversed to open the seating plate. When the unit is provided with the seating and the cover plate.

Abstract: A cuff regulator for an endotracheal-tube cuff comprising a first chamber connected to a pressurized gas supply source, and a second chamber connected to the first chamber through a pressure regulating valve and having an opening connected to a cuff of the cuffed endotracheal-tube. An orifice open to the external environment is provided in a part of a gas conduit between the second chamber and the cuff. A third chamber is also provided having the same pressure as that of the environment in which the cuff is existent. A valve driving apparatus drives the pressure regulating valve in response to the pressure difference between the third chamber and the second chamber, and a pressure setting device sets a desired cuff pressure at which opening and closing operations of the pressure regulating valve are actuated.

Abstract: Steady insufflation of a gas starts before the beginning of each inhalation, and a pulse-like peak flow insufflation of the gas is superposed on the steady insufflation for a short period of times at the beginning of the inhalation, and the steady insufflation is terminated before the end of the inhalation, so as to improve the inhalation efficiency of insufflated gas extremely.

Abstract: A breath-synchronized concentrated-oxygen supplier comprising an oxygen concentrator for producing and storing oxygen-enriched gas, and a buffer tank having an inlet connected to the oxygen concentrator and an outlet for temporarily storing the oxygen-enriched gas obtained from the concentrator. A valve is mounted in the outlet of the buffer tank so as to control flow of the oxygen-enriched gas from the buffer tank to the respiratory system of a living body, the valve having a gas flow path that is open to the atmosphere. A sensor, provided for sensing the respiration of the living body, generates an output signal indicative of the inhalation and exhalation phases of the respiration. An input device, on which a ratio between the entire length of the inhalation phase and a specific end portion thereof is set is included as is a regulator responsive to the sensor and input device for detecting the duration of each inhalation phase in succession based on the output signal from the sensor.

Abstract: A hollow plate made of synthetic resin characterized in that the plate is made of synthetic resin to have hollow portions therein and that a reinforcement member is forcedly inserted into at least one of the hollow portions. The hollow portion into which the reinforcement member is forcedly inserted extends from one side of the plate to the other side thereof and an opening through which the reinforcement member is inserted is formed at that side of the plate which corresponds to the hollow portion. The strength of the plate can be thus enhanced without making its appearance unattractive and thus surface of the plate can be made plain and smooth. Therefore, it can be satisfactorily used as luggage panels or the like.

Abstract: An oxygen concentrator for supplying enriched oxygen gas to an open breathing system of a human being or the like in synchronization with a breathing cycle of a patient is disclosed, comprising a thermocouple sensor and a control device for synchronizing the timing of opening an electromagnetic valve provided in the gas passageway with the beginning of an inhalation phase of the breathing cycle. The thermocouple sensor, located near the patient's nostrils detects the change in temperature of breathing air flow of the human being or the like and generates a detection signal indicating the instantaneous temperature of the breathing air flow. Thereafter, the control devices detects the beginning of an inhalation phase by comparing the successive two voltage levels of the detection signal. When the breathing cycle enters the inhalation phase, the control device opens the electromagnetic valve thereby permitting the flow of oxygen to the patient.