Abstract: A color image forming apparatus having a function for duplicating an image in two desired colors. A color of an image of an original document is read into color elements of a red (R), a green (G), and a blue (B) color, represented by corresponding image signals R, G, and B, respectively. The image processing unit distinguishes between a first case that the read color is a chromatic color and a second case that the read color is an achromatic color. When the color is distinguished as a chromatic color, the image processing unit converts the color into one of two predetermined colors, each defined by color elements C, M, Y, and K corresponding to image signals C, M, Y, and K, respectively. When the color is distinguished as an achromatic color, the image processing unit converts the color into the other one of the two predetermined colors.

Abstract: A process is described for the selective decomposition of aromatic primary hydroperoxides by contacting a hydroperoxide mixture containing aromatic primary hydroperoxides and aromatic tertiary hydroperoxides obtained by oxidation of alkylaromatic compounds under non-aqueous conditions with an alkali and an organic aromatic carboxylic acid salt.

Abstract: An amount of resin necessary for lining an inner surface of a pipe is calculated. A lining pig is inserted in the pipe from an open end thereof, and the calculated amount of resin is supplied in the pipe from the open end subsequent to the insertion of the lining pig. A blocking pig is inserted in the pipe behind the resin, and a pressurized non-compressible liquid is supplied in the pipe subsequent to the insertion of the blocking pig thereby feeding the charged resin through the blocking pig until a front end of the resin reaches an inner end of the pipe. The resin is sucked together with the lining pig and the blocking pig so that the inner surface of the pipe is lined with the resin.

Abstract: A calibration pipe having a predetermined length is connected to an end of a pipe to be measured. A sound emitter and a sound receiver are connected to a base end of the calibration pipe. The sound emitter emits a sound into the calibration pipe and the pipe to be measured, and the sound receiver receives a sound reflected from a discontinuous portion of the pipe. A calculator is provided for calculating a period of time from emitting of the sound to receiving of the reflected sound. The length of the pipe is calculated based on speed of the sound in the calibration pipe.

Abstract: A color correction device used for a color electrophotographic machine or color printing machine. The device includes a hue area judgement unit for judging to which hue area among at least three predetermined hue areas the hut represented by input color image signals belongs by comparing the input color image signals with each other. With respect to the judged hue area according to this judgment, color correction parameters are set, and in accordance with the set color correction parameters, the input image signals are converted to output color image signals used for printing.

Abstract: A color correction device used for a color electrophotographic machine or color printing machine. The device includes a hue area judgement unit for judging to which hue area among at least three predetermined hue areas the hue represented by input color image signals belongs. With respect to the judged hue area according to this judgement, color correction parameters are set, and in accordance with the set color correction parameters, the input image signals are converted to output color image signals used for printing.

Abstract: A black color component extracting apparatus used for a color image reproducing machine. The apparatus includes a hue area judgement unit for judging to which hue area among at least three predetermined hue areas the hue represented by input color image signals belongs. With respect to the judged hue area according to this judgement, the black color extraction parameters are set, and in accordance with the set black color extraction parameters, black color component is extracted. The black color extraction parameters are determined from two chromatic colors P and Q positioned in respective boundary planes which defines the judge hue area, and from an achromatic color N.

Abstract: A digital color copying machine including a color-decomposing circuit for decomposing an incident color image into three fundamental colors and generating respective corresponding digital color signals; a color conversion circuit connected to the color-decomposing circuit for extracting a black component and one signal with the greatest density level from the three digital color signals and generating a plurality of fundamental color signals corresponding to the three digital color signals, and a first signal corresponding to the black component and a second signal corresponding to the one signal with the greatest density level; an image recorder connected to the color conversion circuit for recording on a predetermined medium images in the color corresponding to at least one of the fundamental color signals, the first signal and the second signal supplied thereto from the color conversion circuit; and a control circuit for controlling the color conversion circuit to deliver to the image recorder either the f

Abstract: An image information processing method comprises a step of generating electrical color image signals representative of the quantities of light of separated colors from an object, and a step of converting the generated color image signals to signals with values substantially proportional to the cubic root of the quantities of light from the object with respect to the respective separated colors. The method comprises a step of adjusting recording gradation characteristics of respective colors to be recorded such that the values of color image signals to be recorded are substantially proportional to the cubic root of recorded reflectivities, respectively, and a step of determining recording gradations of the respective colors in accordance with the color image signals by using the adjusted recording gradation characteristics.

Abstract: A support device for an independent tank, wherein a first support member secured to the tank is adapted to be supported on the top surface of a second support member attached to a ship's hold. Particularly in the case of a spherical tank, a horizontal ring projecting from adjacent the equator of the spherical tank is adapted to be supported on a support deck installed around the inner periphery of a ship's hold, with a pressure-resistant heat insulating material interposed between the ring and the support deck. In such support device, an anti-floating member is provided on and projects from either the first support member or the second support member through the other member without touching the same. When the tank tends to float up, the free end of the anti-floating member and the mating member engage each other with the pressure-resistant heat insulating material interposed therebetween, thereby preventing the floating up of the tank.

Abstract: A support deck extends on a level above the bottom of a hold of a vessel carrying low temperature liquified storage spherical tanks, from bulkheads of the hull so as to surround such spherical tanks, while a horizontal support ring projects from the outer surface of the spherical tank and is supported on the support deck through support chocks. The circular inner peripheral edge of the support deck is supported by brackets erected on the bottom plate of the hold and radially extending toward the bulkheads or by columns erected on the bottom plate of the hold. In one construction, the inner peripheral edge of the support deck has an annular girder attached to the under side thereof and such girder is supported by brackets or columns. Further, in another construction, arcuate girders are provided only in regions close to longitudinal or transverse bulkheads and supported by brackets, and adjacent girders are interconnected by an arcuate leg plate erected on the bottom plate of the hold.

Abstract: A support device for an independent tank, wherein a first support member secured to the tank is adapted to be supported on the top surface of a second support member attached to a ship's hold. Particularly in the case of a spherical tank, a horizontal ring projecting from adjacent the equator of the spherical tank is adapted to be supported on a support deck installed around the inner periphery of a ship's hold, with a pressure-resistant heat insulating material interposed between the ring and the support deck. In such support device, an anti-floating member is provided on and projects from either the first support member or the second support member through the other member without touching the same. When the tank tends to float up, the free end of the anti-floating member and the mating member engage each other with the pressure-resistant heat insulating material interposed therebetween, thereby preventing the floating up of the tank.