Abstract: A system for operating a two-cycle spark ignition engine, comprising an ultrasonic atomizer that is disposed in an intake pipe of the spark ignition engine. When the engine is to be started, a fuel for starting is supplied to the ultrasonic atomizer, and after the engine has been started, a gas oil is supplied to the ultrasonic atomizer to atomize and spray it into the intake pipe, thereby enabling an increase in the flow rate of fuel atomized and sprayed by the ultrasonic atomizer and realizing combustion of gas oil, and thus achieving a lowering in the fuel cost, ensuring safety and making it possible to provide a lightweight emergency pump unit which is suitable for use in vessels, for example.

Abstract: A process for treating waste water containing radioactive substances comprising treating the waste water by reverse osmosis in the presence of at least one organic surfactant selected from the group consisting of anionic surfactants, cationic surfactants and nonionic surfactants.

Abstract: Sealing apparatus used for sealing the gap between flanges which comprises an O-ring engaged with a circular groove formed in the coupling surface of one of the flanges and two backup rings engaged with the groove and the O-ring, each of the backup rings having an inclined surface to be axially urged by the O-ring whereby the upper backup ring is moved according to the gap to close it.

Abstract: A catalyst for the gasification of heavy hydrocarbons in a fluidized bed which contains CaO and has high catalytic activity, long life and mechanical strength, and further characterized in that a part or the whole of said CaO exists in the form of at least one member selected from the group consisting of 2CaO.Fe.sub.2 O.sub.3, 2CaO.SiO.sub.2 and 3CaO.SiO.sub.2 is disclosed.

Abstract: Spray apparatus for coating bottles with resin except on their bottoms, for the purpose of preventing the explosion of the bottles. In order to prevent adhesion of the resin to the bottom, bottles are suspended and moved in a row and a belt is provided to move together with the suspended bottles below and near their bottoms and at the same speed as the bottles.

Abstract: Apparatus for assembling hull modules for shipbuilding comprising two opposed chassis for supporting longitudinal assemblies and opposed second devices for supporting deck and bottom assemblies, all being constructed to be moved in the vertical and horizontal directions to adjust the position of the respective assemblies. The chassis is supported on cars by a plurality of interconnected oil cylinders adapted to enable the chassis to float on the oil in the cylinders and to permit both tilting and lateral displacement of the chassis on the cars.

Abstract: Arrangement of heat transfer tubes in a heating furnace in which the heat transfer tube is divided into several paths in the radiant heat transfer zone and these branched tubes are arranged in juxtaposition and alternative relation in each row and divided into a plurality of groups in a cycle of the alternation, and burners are provided in front of each tube group.

Abstract: The pulse control circuit comprises an up-counter, a pulse generator connected to supply a pulse train having a fixed repetition rate to the up-counter to cause it to count-up to a preset count, a detector connected to the output of the up-counter, a gate circuit responsive to the output of the detector for controlling the input of a preset count to the up-counter, an up-down counter connected to supply the preset count to the up-counter through the gate circuit, a variable pulse generator connected to a count modifying input terminal of the up-down counter for changing the count stored therein, means for storing a preset count in the up-down counter, and means for varying the repetition rate of the output pulses supplied by the variable pulse generator and for controlling the direction in which the up-down counter operates to either add to or substract from a preset count stored in the up-down counter to thereby control the period between the output pulses produced by the pulse control circuit.

Abstract: Climbing crane for construction characterized in that a superstructural portion of the climbing crane is removably fixed on the tower, the superstructural portion provided with a travelling device for moving on the built structure.

Abstract: In a PPI display type radar system wherein a sector shaped unit scanning surface is established in a scanning plane and a unit scanning surface is shifted progressively in the radial and circumferential directions to seach the received pattern for judging a target. The received pattern is identified by dividing the unit scanning surface into a plurality of annular sections derived from a plurality of concentric circles. The scanning unit for scanning surfaces having approximately the same area over the entire scanning surface is designed in such a manner that the ratio (percentage of extraction) of a number of sampled scanning beams to the number of actual scanning beams is a maximum when scanning an annular section which is located most remotely from the center. The percentage of extraction is gradually decreased toward the center so that the percentage of extraction becomes a minimum 1/n (where n is an integer) when scanning an annular section closest to the center.

Abstract: A shaft sealing apparatus has a housing having axial symmetry about the axis of a shaft disposed therethrough. A seal ring supporting member is slidably disposed about the shaft and is enclosed by the housing. Seal rings are disposed in the seal ring supporting member. A means for moving the seal ring supporting member along the axial direction is provided so that the amount of overlapping area between the seal rings and a sealing portion of the shaft may be controllably varied.

Abstract: For a crane having a boom for hanging loads apparatus for detecting overload is provided which comprises a boom bending moment set value generator, which is determined by a variable quantity corresponding to the operating radius of the crane, a boom bending moment detector having transversely spaced strain gauges mounted on the boom, a comparator for comparing the output of the boom bending moment set value generator with the averaged output of the boom bending moment detector, and means operated by the output of the comparator which is produced when the output of the detector exceeds the output of the boom bending moment set value generator.

Abstract: A process for carrying out continuous contact steam decomposition reaction of atmospheric distillation residual oil or reduced pressure distillation residual oil at a temmperature of 700.degree. to 1000.degree.C. in the presence of a catalyst which has been prepared by mixing and kneading calcium oxide with 5 to 20% by weight of iron sesquioxide and 10 to 30% by weight of silicon oxide of which proportions are to be compared with the weight of said calcium oxide, or further adding proper amount of at least a member selected from the group consisting of magnesium, aluminum and chromium oxides and burning the result at high temperature.

Abstract: In a ship for transporting cold pellets of iron ore a perforated piping is arranged in the holds of the ship and exhaust gas from the boiler or engine of the ship is ejected into the cold pellets loaded in the holds through the perforations of the piping thus drying and hardening the pellets during the voyage.

Abstract: A device for damping waves comprising an inclined frame having a plurality of barriers and moored to the sea bottom so as to be downwardly sloped against the wave in the sea water, and an upright frame having a plurality of barriers provided on the upper end of said inclined frame and perpendicular to the plane of the inclined frame.

Abstract: A container yard is provided with a first container handling machine installed in the transferring area of the yard, a second container handling machine free to move in the yard, a vehicle for transferring the container, a gate located in another transferring area of the yard, and a control center responsive to the input and output information of the containers for commanding and supervising the loading and unloading operations of the first and second machines and of the vehicle in the yard.

Abstract: Apparatus for constructing a block tower for a suspension bridge includes a working platform, means for raising and lowering the platform vertically along a pre-erected base of the tower, and a carriage movable horizontally on tracks on the working platform. The carriage moves between a block loading station lateral of the base and a block unloading station above the top of the tower base where the block is superimposed on other blocks of the pre-erected base. The carriage is specially designed to raise and lower the lower block and to disengage the same at the block unloading station for return to the block loading station. A method is also disclosed for constructing a tower of built-up blocks.

Abstract: Apparatus for coating bottles with resin in order to prevent the explosion thereof characterized in that the bottle is held by a holder at the mouth portion and at its inner wall, so that the bottle may be invisibly coated with resin except for the mouth portion and bottom.

Abstract: Rail crossover arrangement characterized in that wheels can pass through the crossover without shock. To this end flanged portions of the wheels are supported on the crossover plate provided in the intersections of the rails when the wheels pass through the intersections.

Abstract: A method of disposing of solid or paste-like paint waste in which the paint waste is firmly comminuted and mixed with waste oil and water, preferably with detergent present, to form a low-sedimentation rate slurry, and the slurry then incinerated to provide substantially complete combustion of said paint waste.