Abstract: A fluid control valve which regulates a flow rate of a liquid and, more particularly, which controls a fluid by axially moving a valve body fixed to a valve shaft. The fluid control valve comprises a device for absorbing vibrations of the valve shaft in a direction perpendicular to the axis thereof. More specifically, there is provided a device for exerting a pressing force to lightly press the valve shaft against the inner walls of bearings. Alternatively, the valve shaft may be held between a plurality of elastic plates fixed on the inner surface of a valve casing.

Abstract: A naphthyloxazolidone derivative of the formula: ##STR1## wherein R.sup.1 is hydrogen atom, hydroxy group, nitro group, amino group, sulfo group, aminosulfoyul group, a lower alkenyloxy group, a lower alkynyloxy group, a mono or di(lower alkyl)aminocarbonyloxy group, a lower alkanoyloxy group or a lower alkoxy group which may have a substituent selected from an aryl group, a cycloalkyl group, an oxygen-containing heteromonocyclic group, hydroxy group, a lower alkoxy group, cyano group, a di(lower alkyl)amino group, aminocarbonyl group, a lower alkoxycarbonyl group, a lower alkanoyloxy group, a lower alkylthio group, a lower alkylsulfinyl group and a lower alkylsulfonyl group; R.sup.2 is hydroxy group, a lower alkoxy group, a lower alkylsulfonyloxy group, triazo group or an amino group which may have a substituent selected from a lower alkyl group and a lower alkanoyl group, and a pharmaceuticaly acceptable salt thereof are disclosed.

Abstract: The fabric finishing agent is a solution of a graft copolymer composed of an organopolysiloxane moiety and a grafting moiety thereon obtained by the graft copolymerization of an acrylic or methacrylic monomer, optionally, in combination with monomers of other types. The fabric finishing agent is capable of imparting various kinds of fabric materials with greatly improved soft but non-sticky feeling of touch with resilient elasticity and the effect of treatment is durable and resistant against laundering and dry cleaning.

Abstract: A process for producing a cyanopyridine which comprises reacting the corresponding methylpyridine, ammonia and an oxygen-containing gas in the presence of a catalyst comprising a vanadium oxide, a chromium oxide, a boron oxide and optionally a phosphorus oxide and/or molybdenum oxide held on silica is disclosed. According to the present invention, the reactivity of the raw material and the yield of the reaction product are high.

Abstract: A process for producing dioctamethylene triamine is disclosed which comprises dimerizing octamethylene diamine in the presence of a zeolite catalyst, characterized in that the catalyst is represented by the formula:Na.sub.2 O.cndot.xSiO.sub.2 .cndot.yAl.sub.2 O.sub.3wherein x and y are so selected that the molar ratio of Na.sub.2 O to Al.sub.2 O.sub.3 is in the range of 0.02 to 0.05 and the molar ratio of SiO.sub.2 to Al.sub.2 O.sub.3 is in the range of 1 to 10.

Abstract: There is disclosed a lactam derivative of the formula: ##STR1## wherein R.sup.1 is a substituted or unsubstituted phenyl group; R.sup.2 is a substituted or unsubstituted phenyl group, a cycloalkyl group or a nitrogen-containing 6-membered heterocyclic group; Z is oxygen atom or sulfur atom; and n is an integer of 2 or 3,and a salt thereof.The above lactam derivative is novel and useful as a pharmaceutical compound.

Abstract: Automotive engine idle speed control device meters the flow rate of air supplied to the engine bypassing an intake pipe thereof during engine idle operation to thereby control the engine idle speed. An actuating vacuum is produced in accordance with an electrical signal and acts on a diaphragm fixed to a valve movable with the diaphragm to meter the bypass air flow. To cancel any external force acting on the valve, adjusting means is provided to control the vacuum on the diaphragm independently of the electrical signal to displace the diaphragm in a direction opposite to the direction of action of the external force on the valve.

Abstract: A turbocharger having a rotor shaft supported by bearing portions of a bearing housing through floating bushes. Holders for the floating bushes are replaceably secured to the inner peripheral surfaces of the bearing portions opposing to the outer peripheral surfaces of the floating bushes. When the holders are worn down, the holders solely can be replaced with new ones, so that it is not necessary to renew the bearing housing as a whole.

Abstract: An exhaust bypass type turbo-charger includes a turbine driven by an exhaust gas from an internal combustion engine, a compressor driven by the turbine and supplying a compressed air into the engine, an exhaust bypass valve for controlling an amount of the exhaust gas bypassing the turbine, a drive mechanism for fluidly driving the exhaust bypass valve, and a transducer. The transducer communicated fluidly with both the drive mechanism and an outlet of the compressor, and amplifies the pressure variation of air discharged from the compressor so that the amplified pressure variation is applied in the drive mechanism. The drive mechanism, therefore, can start to open the exhaust bypass valve at a relatively smaller pressure, and fully open it at a relatively larger pressure.

Abstract: In an exhaust bypassing system for a turbocharger for use with an internal combustion engine such as automobile engine, an opening is provided in the wall of an exhaust passage so as to introduce the exhaust pressure of the engine into the interior of a diaphragm of a valve assembly which adjusts the quantity of exhaust gas to be bypassed and in which a rod having a valve body at its fore end is attached to the diaphragm.

Abstract: A recirculation duct with a check valve is connected to an exhaust duct communicating with the engine and a turbine of a turbocharger and an delivery duct communicating with the engine and compressor of the turbocharger. A branch duct is connected to the delivery tube upstream of the recirculation duct. In the branch duct, a control valve is provided for controlling a quantity of air flowing in the branch duct according to both a pressure in the exhaust duct and a pressure in the delivery duct downstream of the branch dust to lower the pressure in the delivery duct downstream of the branch duct thereby recirculating part of the exhaust gas. The control valve is provided with a dashpot and push rods, and driven by an accelerator when the engine runs at high load. The dashpot damper a rapid movement of the control valve made by the accelerator.