Abstract: In an internal combustion engine, a spark timing control device adjusts spark timing in accordance with detected value of vibration in combustion pressure. A sensor detects vibration in combustion pressure within the engine. The detected combustion pressure vibration is converted into a correlation value relating to combustion condition of the engine. The current correlation value is compared to a reference value corresponding to the correlation value which was obtained during idling operation of the engine. This comparison is to determine whether or not a malfunction of the spark timing control device occurs. The spark timing is controlled in accordance with the detected combustion pressure vibration and also with the determination as to whether or not a malfunction of the spark timing control device occurs.

Abstract: In an internally cooled tubular ozonizer, there is built into the interior of the glass tube (5) a cooling tube (9) whose outer diameter is only slightly smaller than the inner diameter of the glass tube (5). The annular gap left is filled up with a temperature-resistant casting compound (10) which conducts heat well. In the case of a synthetic resin casting compound (10), the cooling tube (9) is connected galvanically via contact springs (11) to the metal layer (8), serving as the inner electrode, on the inner wall of the glass tube (5). The heat transfer from the cooling agent in the cooling tube (8) to the glass tube (5) is not impeded by the casting compound (10). Temperature stresses between the glass tube (5) and the cooling tube (9) are largely reduced, as a result of which the operational safety of the ozonizer is increased, especially at fairly high power densities.

Abstract: An air cleaner of the type utilizing the corona discharge phenomenon, which cleaner has a greater dust-collecting capacity and which does not stain a wall even if the cleaner is installed along the wall. The air cleaner of the present invention comprises a substrate, a pair of anodes mounted on the substrate, a cathode mounted on the substrate and interposed between the pair of anodes, a cover mounted on the substrate, which covers the pair of anodes and the cathode, the cover having an inlet formed in the region near from the cathode and a pair of outlets formed in the region near from the pair of anodes. The inlet and the pair of outlets are arranged such that when a negative and positive voltage is applied to the cathode and the pair of anodes, respectively, air is inhaled into the cavity defined by the substrate and the cover from the inlet and is vented therefrom through the pair of outlets.

Abstract: An aqueous liquid dye composition improved in storage stability, which comprises a bifunctional reactive dye of the following formula, ##STR1## wherein D is an organic dye residue having at least one sulfonic acid group, R.sub.1 and R.sub.2 are independently a hydrogen atom or an unsubstituted or substituted lower alkyl group, A is an substituted or substituted phenylene or naphthylene group, X is a halogen atom, and Y is --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 Z, in which Z is a splittable group by an alkali, in an amount of 5 to 50% by weight based on the weight of the liquid dye composition, the liquid dye composition having a pH value of from 3 to 7.

Abstract: A vinylnorbornyl alcohol of 5- or 6-vinyl-2-hydroxymethylbicyclo[2.2.1]heptane which is represented by the following structural formula: ##STR1## The compound has particular fragrance of a mint-like note partaking of camphor tone.

Abstract: A system for controlling the power supply to an automotive vehicle lamp in which two switch means are connected in series with each other, an interior room lamp in the vehicle compartment, and the power supply, i.e., a vehicle battery, one switch means being closed when a detachable back door is open and open when the back door is closed and the other switch means being open when the back door is detached from the vehicle body. Therefore, the interior room lamp is turned off when the back door is detached even though the first switch means is closed. Consequently, wasteful power drain on the vehicle battery can be avoided when the back door is detached.

Abstract: A surfactant is obtained by treating a mixture of 20 to 95 wt. % of a thermal cracking oil fraction obtained by thermally cracking a petroleum heavy residual oil at 400.degree. to 700.degree. C., for example, by delayed coking and 80 to 5 wt. % of other aromatic source, for example, an aromatic fraction having a comparatively high boiling point with an acid catalyst, and sulfonating and neutralizing the product. This surfactant is used as a dispersing agent for a coal-oil mixture (COM).

Abstract: An apparatus for improving the visibility of objects within the visual field of a vehicle driver and a process therefor are disclosed. The apparatus includes a light caster casting intense visible light toward a reflective object at a frequency no lower than critical fusion frequency, an image pickup device picking up an image of the object and outputting corresponding image data, an image data amplifier, a picture signal generator and a display. The image data are processed to yield a picture signal which yields a clear picture of the object on the display. The apparatus can give the driver of a vehicle a clear picture of the objects within forward visual field of the vehicle at night without dazzling the drivers of vehicles in the opposite lane.

Abstract: Dielectric ceramics represented by the following general formula and substantially having the K.sub.2 NiF.sub.4 type crystal structure,aSrO.bCaO.cTiO.sub.2.dSnO.sub.2(wherein 0.39.ltoreq.a.ltoreq.0.70, 0.ltoreq.b.ltoreq.0.28, 0.27.ltoreq.c.ltoreq.0.35, 0.ltoreq.d.ltoreq.0.04, and a+b+c+d=1), have a high dielectric constant and an unloaded Q as high as 6000 and more in the high-frequency region of super high frequency band, and are therefore best suited for use in dielectric resonators, dielectric substrates for micro wave integrated circuit, and the like.

Abstract: The derailleur is provided with a base member; a linkage mechanism including a support member, a pair of linkage members, and a movable member; and a chain guide having a guide sprocket and a tension sprocket. The support member is supported swingably relative to the base member through a first horizontal shaft, and the chain guide is supported swingably relative to the movable member through a second horizontal shaft. Also, first and second springs are provided between the base member and the linkage mechanism, and the movable member and the chain guide. The first and second springs balance with each other to set the position of the guide sprocket with respect to a selected particular rear chain gear. The spring force of at least one of the first and second springs is changed with respect to the other by the swinging motion of at least one of the linkage mechanism and the chain guide in excess of a predetermined angle, thereby yielding an optimum distance between the guide sprocket and the rear chain gear.

Abstract: A shoe making machine is disclosed. It comprises a base; a slide table movably mounted on the base; a supporting member fixedly mounted on the slide table and having a clamping device for clamping the heel portion of a shoe body; a pair of guide shafts bridged in parallel each other above the slide table; a tiptoe portion carrying member having the tiptoe accommodating member mounted on its top and a pair of guide members connected to its lower end; locking device for locking and unlocking the tiptoe portion carrying member relative to the slide table, a processing tool table for processing the under-surface of the shoe body and having a constant original position to return slightly away from the tiptoe portion in the set state; and a device for controlling the movement of the tool table in the back and forth direction and up and down direction and of the slide table carrying the shoe body in the right and left direction.

Abstract: A rotational motion sensor has a circular, tubular body (1) filled with a fluid. A sensor head (6) forming part of the body houses a movable detecting element in the form of a piston (7) which is magnetically levitated so that it is kept out of contact with the sensor body. Movement of the piston is detected in a number of different ways including using a variable magnetic reluctance pick-off (4, 5).

Abstract: An inventive release system for a seat occupant restrained by a seat belt in a vehicle can be operated both inboard and outboard. The system includes a seat belt retractor locked in response to abrupt deceleration or collision, a mechanism emergency-releasing the retractor after the retractor has been locked, and a manual control including a control terminal exerting a control power for actuating the mechanism and also including inboard and outboard control lever mechanism manually actuated to move the control terminal.

Abstract: An apparatus responsive to a change in the position of an accelerator pedal for controlling movement of a throttle valve situated within an engine induction passage. The apparatus includes a control circuit for determining a demand value corresponding to a setting of the position of the throttle valve in response to an electrical signal indicative of the position of the accelerator pedal. The calculated demand value is modified whenever the speed of movement of the throttle valve exceeds an upper limit determined in accordance with transmission gear position.

Abstract: A device for detecting the residual amount of bobbin thread in a lock stitch sewing machine is arranged such that a detector detect the number of rotations of an arm shaft or oscillating shaft, or the number of cycles of vertically reciprocating movement of a needle bar of a lock stitch sewing machine including the arm shaft, and oscillating shaft, and needle bar. The detector provides an output for the detected of rotations. The residual amount of bobbin thread wound on a bobbin in a bobbin case is then detected based on the detected number of rotation output. The detected residual amount of bobbin thread is then compared with a predetermined value which is predetermined in dependence on conditions such as the thread and needle to be employed, and the workpiece.

Abstract: This invention concerns a production process of an antithrombogenic and antiadhesive material which can favorably be used as artificial blood vessels, artificial valves, grafting patches for cardiovascular organs, artificial heart catheters and so on. The gist of this invention is constructed substantially of subjecting glycidyltrialkylammonium halide such as glycidyltrimethylammonium chloride to the reaction with a material comprising pure collagen or collagen and other components like mucopolysaccharide in order to introduce a cationic quaternary functional group in collagen molecules of the material and then subjecting heparin to the ionic combination with the cationic functional group introduced.

Abstract: An engine has a crankshaft and cylinders. Each of the cylinders is associated with an ignition coil and a power transistor for controlling the ignition coil. Reference signals are generated at reference crank angles corresponding to the cylinders respectively. The cylinders are separated into groups and the cylinders in a common group are different from each other by an interval of 360.degree. in crank angle. The reference signals corresponding to the cylinders in a common group are similar to each other. The reference signal corresponding to the cylinder in a group is different from the reference signal corresponding to the cylinder in other group. The reference signal corresponding to preset one of the cylinders is different from the reference signals corresponding to the other cylinders.

Abstract: A method for producing cycloalkanols important as a material for caprolactam, adipic acid and the like, which comprises carrying out the catalytic hydration of a cycloalkene using as a catalyst an aromatic sulfonic acid having at least one hydroxyl or ether group and separating the resulting cycloalkanol from the reaction solution by extraction.

Abstract: In modern ozone generators, high power densities are achievable when dielectrics (3) based on ceramics or filled plastic dielectrics and corresponding gap widths and dual cooling are used. With respect to efficiency, such ozone generators are inferior to those with a glass dielectric.To improve the efficiency and the resistance to the discharge attack, it is proposed to glaze the titanium oxide ceramic on the surface and to coat the plastic dielectrics with a high-temperature ceramic adhesive based on SiO.sub.2.

Abstract: A water-insoluble disperse dye composition comprising a combination of a dye represented by the following formula (I), ##STR1## wherein X is hydrogen, halogen, lower alkyl or lower alkoxy, in an amount of 95 to 20% by weight, and a dye represented by the following formula (II), ##STR2## wherein Z, Y.sub.1 and Y.sub.2 are independently hydrogen or halogen, and the ring A is a benzene or naphthalene ring unsubstituted or substituted with a carboxylic acid ester group, in an amount of 5 to 80% by weight, which is useful for dyeing polyester fiber materials to obtain dyed products having both extremely high light fastness and excellent thermal resistance.