Abstract: Nitric oxide is removed from industrial gases by absorption in an aqueous solution containing ferrous ion and a chelate ligand in the form of a ferrous chelate complex which captures the nitric oxide (NO) as a nitrosyl ligand.

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: 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 process for converting inferior heavy oil into light oil and gasifying the same characterized in that a hydrocracking zone comprising coke fluidized bed and a gasification zone comprising a molten alkali salt are provided, the raw oil is fed in said hydrocracking zone to be hydrocracked and produce coke to form a fludized bed, and a part of the raw oil is fed in said gasification zone for obtaining the fluidizing gas.

Abstract: An engine cover removably secured to the cylinder head of an internal combustion engine for housing suction and exhaust valves and a valve operating mechanism is provided with an arm which is pivotally connected to a stationary support located close to one side of the engine so that the cover can be rotated or shifted in the lateral direction.

Abstract: An impingement separator for gas-liquid mixtures, in which at least two separating elements are spaced apart and held upright substantially in parallel to each other so as to provide a passage or passages for liquid-carrying gases. Each element consists of two outer plates bent in a zigzag fashion and spaced in a substantially parallel fashion with horizontal slits formed in the plate portions where the direction of the flow along the plate surfaces is deflected, and a bent inner plate intervening between the outer plates thereby defining liquid passages each facing one of the slits, so that an upward or downward stream or streams of the mixture impinge upon the baffling sections of the outer plates and the liquid is thereby separated out into the liquid passages through the slits and is collected away from the fluid.