Abstract: A cylinder liner having an outer circumferential surface having a plurality of groups of annular grooves, wherein each of the groups of annular grooves has two longitudinal grooves communicating the individual annular grooves with each other, forming an outlet and an inlet for the cooling oil and disposed at locations spaced apart by 180.degree. in a circumferential direction, and the outlet communicates with the inlet in series in the adjoining groups of annular grooves. The outer circumferential surface has further a longitudinal groove connected to the lower end of the longitudinal groove forming the outlet of the lowermost group of annular grooves, a circumferential groove connected to the lower end of the longitudinal groove, and a longitudinal groove having the upper end connected to the circumferential groove and the lower end released, and the lowermost longitudinal groove is disposed at a circumferential position differing from the longitudinal grooves in the groups of annular grooves.

Abstract: Inside a syringe (1) slides a plunger (2) which bears a joint (4) sliding sealingly over the internal wall of the syringe. The flexible membrane (6) of the joint (4) fixed to the end of the plunger (2) bears a closing component (25, 27) which follows the movement of deformation or displacement of the membrane through the effect of the pressure built up during the injection stage, but which is retained by immobilizing strips (17) in a position in which it opens the orifice, breaking the seal between the top and the bottom of the joint, as soon as the membrane returns to its initial position.

Abstract: A resin composition which comprises(A) a saponified ethylene-vinyl acetate copolymer,(B) a polyolefin resin,(C) a graft polymer obtained by grafting an ethylenically unsaturated carboxylic acid or a derivative thereof to a polyolefin resin and reacting the adduct with a polyamide oligomer or polyamide, and(D) a hydrotalcite compound representable by the general formulaM.sub.X Al.sub.y (OH).sub.2x+3y-2z (E).sub.z.aH.sub.2 Owherein M is Mg, Ca or Zn, E is CO.sub.3 or HOP.sub.4, x, y and z each independently is a positive number and a is 0 (zero) or a positive number.

Abstract: In accordance with this invention, a waste gas containing toxic NF.sub.3 gas is contacted with a honeycomb structure of a carbonaceous material to thereby convert NF.sub.3 into nontoxic CF.sub.4 and H.sub.2 gases with high efficiency.

Abstract: A variable ratio steering system on a motor vehicle can vary the ratio of the angle through which the steerable road wheels are steered to the angle through which the steering wheel is turned by the driver. The variable ratio steering system includes an input shaft coupled to the steering wheel, a first ball screw mechanism including a first nut threaded through balls over the input shaft, an output shaft coupled to the steerable road wheels, a second ball screw mechanism including a second nut threaded through balls over the output shaft, and a steering angle ratio adjusting mechanism, mechanically coupled to the first and second nuts, for varying the ratio of an axial displacement of the second nut to an axial displacement of the first nut.

Abstract: A conveyor comprising a plurality of self-propelled carriers adapted to run along a rail, the rail having a first drive wheel bearing surface facing upward and a plurality of downward teeth formed at least at a gradient portion of the rail, each of the carriers having a first drive wheel rollable on the wheel bearing surface of the rail, a first electric motor for driving the first drive wheel, a gear meshable with the teeth of the rail and a second electric motor for driving the gear.

Abstract: In a device for welding structures, such as motor-vehicle bodies or parts thereof (for example, sides), constituted by loosely preassembled, pressed sheet-metal elements, a station for welding the elements includes two rotary drums for rapidly changing the frames for positioning the elements to be welded in the operative position, according to the type of structure to be welded. The various positioning frames are rotated by rotors and guided on annular tracks on each rotary drum. A sector of each annular track can be separted and moved along a line transverse the conveyor line for the structures to be welded in order to bring a certain positioning frame into the operative position.

Abstract: An air conditioning system which uses the high dielectric constant of water and inverse pressure to adapt the evaporator and condenser cycles of a conventional air conditioning system to use water instead of freon. The energy-intensive compressor of the conventional system is replaced by pumps which use pressures to effect the vaporization and condensation cycles. Unlike other water-based systems, all atmospheric high kinetic energy gases such as nitrogen and oxygen are excluded from the closed cycles to prevent interference with the polar attractions between the condensing vapor molecules. The air conditioning system is also adapted for use in removing water vapor from gas such as air. The system comprises a passage for the flow of gas therethrough, a fan or the like for causing a flow of air through the passage and at least one porous structure composed at least in part of solid desiccating material located within the flow passage.

Abstract: Plasminogen activators of the tissue-type and plasminogen activators of the urokinase-type appear to have a synergistic action in vivo when administered together as thrombolytic agents. Use in pharmaceutical compositions and in methods for the preparation and use thereof are set forth.

Abstract: In a hydraulic braking pressure control system for a rear wheel brake wherein a control piston normally works to provide a hydraulic braking pressure control by cooperation with a cut-off valve interposed between an input chamber leading to a master cylinder and an output chamber leading to a wheel cylinder of the brake, the cut-off valve has a valve seat piston whose pressure-receiving area facing the output chamber is larger than the pressure-receiving area facing the output chamber. This ensures that opening and closing of the cut-off valve can be repeated in accordance with the output pressure from the master cylinder, so that the output pressure from the master cylinder can be reduced and applied to the brake wheel cylinder.

Abstract: A device for supplying plastic material into a flask under pressure and a flask with the device, which are used for preparation of a denture. The device includes a cylinder having the inside end communicated to a cavity in the flask, a piston slidably inserted in the cylinder, a spring urging the piston toward inside of the flask, a stopper restricting the outside stroke end of the piston, and a device for adjusting elastic force of the spring. The adjusting device preferably includes a spring receiver abutting against the outside end of the spring, a screw-mechanism for moving the spring receiver in the axial direction of the cylinder, and a handle member for operating the screw-mechanism.

Abstract: A transmission equipped with torque converter having a forward/backward change valve for supplying working oil selectively to any one of a forward clutch or a backward clutch. A shock diverter valve is installed between the forward/backward change valve and a working oil supply source. The shock diverter valve is so designed as to include plural throttles having different bore diameters through which working oil is passed to reduce a rise speed of downsteam side hydraulic pressure. A lever for changing the shock diverter valve is installed at an outside of clutch. An operator can select a drive feeling easily from at least two kinds of feeling by operating a lever.

Abstract: The process of this invention for preparing 2,6-naphthalene-dicarboxylic acid comprises a reaction step (Step A) wherein 2,6-naphthalene-dicarboxylic acid potassium salts consisting of 2,6-naphthalene-dicarboxylic acid dipotassium salt and/or 2,6-naphthalene-dicarboxylic acid monopotassium salt are allowed to react with benzene-carboxylic acids in the presence of water to yield 2,6-naphthalene-dicarboxylic acid and benzene-carboxylic acid potassium salts and a separation step (Step B) wherein the crystallized 2,6-naphthalene-dicarboxylic acid is separated from the benzene-carboxylic acid potassium salts dissolved in the aqueous solution and provides 2,6-naphthalene-dicarboxylic acid, useful as raw material for polymers, at low cost on a commerical scale with recycle of potassium.

Abstract: This invention relates to a flexible robot arm comprising a plurality of disc-shaped elements arranged in a series so as to consist of a flexible arm, both surfaces of each of the elements being formed in convex having an arched opposed single curve so as to form contact surfaces, and a plurality of wire-like actuating devices for allowing the flexible arm to curve or bend in a desired direction. The flexible robot arm of this invention is directed to make motors for driving the actuating devices compact in size and light in weight and also a drive unit section compact in size and light in weight. The flexible robot arm includes two drive units each interconnected to the proximal ends of respective pairs of actuating devices (e.g. 3a and 3c, and 3b and 3d) disposed oppositely to each other on the diagonal and driven through rotary members (5a, 5b, 9a, 9b or 12a, 12b, 12c, 12d) each being rotated by one of the motors (8a, 8 b) in both the clockwise and the anti-clockwise directions.

Abstract: A detector circuit for coupled connectors is provided with one connector housing, the other connector housing and a lock confirming slider. A sensor circuit terminal and a short-circuiting terminal are oppositely arranged in respect to the one connector housing and the lock confirming slider. Springs are arranged between the terminals. The lock confirming slider is moved forward by the springs when both connector housings are completely fitted to each other. Thus, the sensor circuit terminal and the short-circuiting terminal are contacted to each other.

Abstract: A partitioning member having therein a space is provided at the opening of a thermal insulation box having an outer and inner boxes forming a space in between said outer and inner boxes. The two spaces communicate with each other and filled integrally with a thermal insulation material by injecting into the space between said outer and inner box an expandable thermal insulation material, which diffuses into the space inside said partitioning member, to thereby provide in a simple and economical way a thermal insulation box having a small number of components but as uniform thermal insulation.

Abstract: A designing and construction process for raising the height of old buildings suitable for use to raise the height of old buildings of 2-6 stories, or of 7-9 stories if necessary. With this method, it is possible to add 5-8 stories to the old building with no need to demolish the old building and to move the residents to other places. Owing to the employment of supporting frame structure, which is independent of and directional pivotally connected to the original building, the weight of the new building is not supported by the old building, and owing to the employment of shock absorbing devices for building and "shock isolator for buildings", the aseismic capacity of the building is greatly enhanced. This method of raising the height of low-storeyed building of the invention solves a number of problems in relation to rebuilding buildings and avoids great waste.

Abstract: In a process or an apparatus for producing an oxide superconductive material by firing, a gas passage is formed in a firing furnace and a material to be fired, consisting of a ceramic superconductive powder and/or a powder expressing superconductivity when heated, is placed in the gas passage. A gas is passed through the gas passage in one direction to contact with the material. A both ends-opened cylindrical inorganic material is provided in a firing zone of a muffle of a bell-shaped furnace, and a bottomed cylindrical material of a substrate and an oxide superconductive layer is provided inside or outside the both ends-opened cylindrical inorganic material.

Abstract: A fiber reinforced composite belt in which a stainless steel fiber aggregate having a diameter of from 5 to 50 .mu.m and impregnated with 1 to 10% by weight of a thermosetting resin such as an epoxy resin is buried as a reinforcing material in a base material for belt, and a process for preparing the above-mentioned fiber reinforced composite belt are provided. This fiber reinforced composite belt is much more excellent in flex resistance, durability, water resistance and coefficient of linear expansion, as compared with not only a rubber belt and a synthetic resin elastomer belt but also belts reinforced by directly burying a stainless steel fiber and a steel fiber in the rubber.

Abstract: A method for correction of the counting error in liquid scintillation counting in the attenuation of light passing through a sample solution is measured before or after the actual liquid scintillation counting takes place. By means of the attenuation measurement the error in the liquid scintillation counting result, caused by the colorness of the sample solution, and/or by the counting apparatus, is corrected. The apparatus has a liquid scintillation counter provided with cylinder shaped optics. A photometer is incorporated in the liquid scintillation counter. By means of the photometer, the attenuation of light passing through the sample solution is measured before or after the actual liquid scintillation counting measurement, where said attenuation is caused by the colorness of the sample solution and/or due to features of the apparatus.