Abstract: The invention provides a method of vaporizing and a device capable of thermally vaporizing a thermally vaporizable composition being drawn up by a porous absorbing body due to its capillary attraction.

Abstract: A novel ketene S,S-acetal derivative which is useful as an antimycotic agent and an agricultural chemical of fungicidal, plant growth regulating or insecticidal properties represented by the general formula (I): ##STR1## wherein R represents a hydrogen atom; an alkyl group having 1 to 8 carbon atoms; a cycloalkyl group having 3 to 6 carbon atoms; a methylene group; a lower alkenyl group; a lower alkyl group substituted by a halogen atom, a cyano group, a lower alkoxy group, a lower alkylthio group; a carbamoyl group, an acyl group, or an alkenoyloxy group; a phenyl group represented by ##STR2## (in which R.sub.

Abstract: An oilproof rubberized fabric is described, comprising a woven fabric as a strength member and having coated thereon an oilproof synthetic rubber, wherein simplicity of construction and ease of fabrication and symmetry of structure and physical properties on both sides of the woven fabric are attained by means of a resin having an oil-barrier property and an adhesive property applied so as to fill up interstices in the woven fabric.

Abstract: A retractable lamp which includes a lamp pivotally held at a first axis to be extended out of and retracted into a housing, a lampcover pivotally held at a second axis to open and close an opening of the housing for exposing and retracting the lamp, and a swing member for imparting motions to the lamp and the lampcover. The retractable lamp can reduce the open area between the lampcover and the lamp which are exposed out of the housing. Due to the reduction of the open area, a reduction in air resistance and noise is thus created and an improvement in the fuel efficiency of an automobile can be realized.

Abstract: This invention relates to an encased engine generator having an air-cooled engine and a generator housed in a case approximately structured in a rectangular parallelepiped, wherein a fuel tank is provided along the upper surface of the case, an engine having a cooling fan at its side is disposed within the case beneath said fuel tank, a generator interlocked with said engine is disposed at the downstream side of the cooling air from said cooling fan, a silencer is disposed between said fuel tank and generator so that its outer circumference may be cooled by part of said cooling air, and operating parts such as engine operation knob necessary for operation and maintenance are provided on the wall of the case which encloses the remaining cooling air.

Abstract: A fiber material for reinforcing plastics prepared by laminating at least one first fiber substrate in which the reinforcing fibers extend in two directions including the longitudinal direction and the transverse direction intersecting therewith at a substantially right angle with at least one second fiber substrate in which the reinforcing fibers extend in two directions including directions having angles of .+-.(25-65) degree relative to the longitudinal direction.

Abstract: A flexible membrane material of good water repellency comprising a base material and a water repellent layer on the base material, wherein the water repellent layer is a thin rubber layer having therein finely divided fluorinated resin grains scattered and rubbed in. This water repellent layer is firmly adhered to the base material and is substantially free from development of cracks during use. Furthermore the water-repellent layer prevents permeation of water and formation of a water layer on the membrane material. The flexible membrane material of the invention is suitable for use in the production of a radome for a satellite communication system, pneumatic membrane structures, or tents.

Abstract: A friction material obtained by flame spraying a metal which can be a sacrificial anode for iron on the surface of a friction material substrate in an amount of 0.5 to 8.0 mg/cm.sup.2 shows excellent resistance to judder and excellent rust prevention.

Abstract: A fiberscope, particularly, a fiberscope adapted to be inserted into a blood vessel or the like, having a reduced diameter and reduced flow rate of flushing fluid. A cylindrically shaped inflatable balloon is disposed around the flexible tube of the fiberscope somewhat rearward of the tip end. When an observation is to be performed, the balloon is inflated to reduce the flow rate of blood in the vessel. As a result, the amount and flow rate of the flushing fluid needed to provide a clear visual field between the tip of the fiberscope and the wall of the vessel to be observed are reduced.

Abstract: A method and system for determining weld quality in resistance welding in such a manner that acceptance or unacceptance is determined by comparing with their respective reference values the electrode voltage, the electrode current time, the number of electrode voltage pulse signals in excess of the reference value, and the integral of difference between the electrode voltage in excess of a base voltage and the base voltage, independently or simultaneously, in addition to the comparison of the electrode resistance with its reference value. The relatively low-priced system according to the present invention can determining weld quality accurately even when the electrode tips are deformed or crushed so as to form other current path areas.

Abstract: A method and system for controlling resistance welding whereby the preferred quality of resistance welding can be ensured automatically during the welding process by controlling the electrode pressure so that the electrode resistance changes in accordance with a reference resistance curve, or by additionally controlling the electrode voltage so that the electrode voltage changes in accordance with a reference voltage curve. The system according to the present invention comprises an electrode voltage sensor, an electrode current sensor, a reference resistance generator, a reference voltage generator, a differential amplifier, a pressure control device, a current controller and so on.

Abstract: A method and system for determining weld quality in resistance welding in such a manner that acceptance or unacceptance is determined by comparing with their respective reference values the electrode voltage, the electrode current time, the number of electrode voltage pulse signals in excess of the reference value, and the integral of difference between the electrode voltage in excess of a base voltage and the base voltage, independently or simultaneously, in addition to the comparison of the electrode resistance with its reference value. The relatively low-priced system according to the present invention can determine weld quality accurately even when the electrode tips are deformed or crushed so as to form other current path areas.

Abstract: A highly weather-proof high strength membrane material which comprisesa polyvinyl fluoride resin film coated with an adhesive layer on one side thereof,a urethane resin applied by spraying on the adhesive layer,a triaxially woven fabric of polyaramide fibers as reinforcing fibers adhered on one surface thereof onto the sprayed urethane layer, anda urethane resin applied by spraying on another surface of the fabric. This membrane causes creases to occur with difficulty and does not deteriorate radio wave permeability.

Abstract: Disclosed is a fabric structure for fiber reinforced plastics, which comprises at least two yarn groups composed of straight reinforcing filamentary yarns composed of carbon fibers being free of bends and gathered in one direction in the form resembling a sheet, wherein the yarn groups are integrated with each other by auxiliary filamentary yarns so that the sheet-like faces of the yarn groups are made to confront each other and reinforcing filamentary yarns of one yarn group intersect reinforcing filamentary yarns of the other yarn group, and the auxiliary filamentary yarns have a higher elongation at break than that of the reinforcing filamentary yarns.

Abstract: A mixture of an active ingredient such as insecticide, fungicide, repellent or the like and a blowing agent is heated with a hot air current produced by a suitable heat source and a fan to thermally decompose the blowing agent and cause the hot air current and the gas resulting from the thermal decomposition to vaporize and diffuse the active ingredient. The mixture is accommodated within a passage formed in a container and the passage is provided therein with a fan for forcing the hot air current therethrough. A fumigating method and an apparatus of this invention ensure very efficient, quick and uniform diffusion of the vapor of the active ingredients and are usable for controlling vermin and other purposes with high safety and great convenience.

Abstract: A mixture of an active ingredient such as insecticide, fungicide, antiseptic or the like and a blowing agent is heated indirectly with a heat evolved by contacting an exothermic substance with water to decompose the blowing agent and to volatilize the active agent. The mixture is accommodated in at least one compartment of a container while the exothermic substance is accommodated in at least one further compartment provided with water supplying means, said compartments being separated from each other by a partition which provides a heat transferring surface.

Abstract: A mixture of an active ingredient and a blowing agent is heated indirectly with a heating element to thermally decompose the blowing agent and to volatilize the active ingredient. The mixture and the heating element are separated from each other by a partition which provides a heat transfer surface.

Abstract: A control rod drive for a nuclear reactor which has an index tube coupling a control rod at one end and connecting a drive piston at the other end is adapted to vertically move the index tube by hydraulic pressure applied thereto. The index tube is formed with at least one helical groove on the outer surface and a plurality of recesses on the bottom surface of the helical groove. Collet fingers each having one end always urged against the index tube and the other end secured to a drive cylinder are provided for controlling the movement of the index tube. The collet fingers are able to engage with and disengage from the helical groove during rapid insertion of the control rod into a reactor core while able to slide in the helical groove during extraction of the control rod out of the core and to engage with the recess to prevent the movement of the control rod.

Abstract: A device for use in capturing cockroaches which comprises a container having at least one opening or entrance permitting cockroaches to enter therein and a slanting stepping plate extending inwardly upward from the bottom of the opening.

Abstract: In arrangement of a channel selecting device used for a UHF tuner of the continuously variable type, a taper clutch is employed for transmitting the rotation of the detented selector shaft to the output drive gear which is secured to the fine tuning shaft positioned inside the selector shaft. The taper clutch is formed by engagement of the annular inner surface of a hollow portion in the end of the selector shaft and the annular outer surface of a hub member of the fine tuning shaft, each of surfaces has a taper angle (2.theta.) in the range of about 20.degree. to 9.degree. to frictionally couple the selector shaft and the drive gear, and is coated with a layer of lubricant materials to permit the rotation of the fine tuning shaft independent of the selector shaft. This taper clutch provides stable and smooth operation in the extended temperature range and without any undesired creep between the selector shaft and the fine tuning shaft.