Abstract: A display terminal equipment for information processing system comprising an image storage unit and an image synthesizing unit. Information to be displayed is divided into a fixed background picture such as graphic patterns, tables and flowsheets produced by a video camera and stored in the image storage unit, and a foreground picture mainly made up of numeric characters and is supplied from a computer. The background and foreground pictures are mixed by the image synthesizing unit and displayed on a CRT screen.

Abstract: Measurement of an integrated weight of a particulate material being continuously fed to a powder treating system or the like by providing a powder delivery port in a lower portion of a pressurized powder feed container for supplying the particulate material to a blowing port of the treating system, connecting a pressurized powder replenishing container to an upper portion of the powder feed container for replenishing the power feed container with the particulate material under pressure, continuously feeding the particulate material along with part of a pressurized carrier gas introduced into the delivery port of the pressurized powder feed container, communicating the powder replenishing and feed containers with each other with suitable timing for replenishing the particulate material, sequentially measuring the weights of powder contents in the containers to measure the integrated weight of the particulate material fed through the delivery port during a time period of operation; batchwise combining the weigh

Abstract: A method of and apparatus for optimizing the rate of material air supply to an air separation plant, for preserving a stable operation of the plant, through stabilizing heat balance and material balance in the plant irrespective of variation in the flow rate of a gas through an expansion turbine incorporated in the plant and the flow rate of product gases so as to optimize the purity and amount of produced gas. The control for the optimization is performed making a ratio of the difference between the flow rate of the material air and the flow rate of the gas through the expansion turbine to the flow rate of the product gases, as an essential factor for the control.

Abstract: A method and apparatus for automatic change of operations in an air separation plant in increasing or decreasing the amounts of products. The present invention is characterized in that intended change values of the flow rate of feed air to be introduced into an air separation plant, the flow rate of liquid air recycled to an upper tower from a lower tower of a rectification column, the flow rate of recycled liquid nitrogen and the flow rate of an expansion turbine gas flowing in an expansion turbine are computed from the values of increased or decreased amounts of products.

Abstract: Disclosed is a new and improved method for automatically balancing the temperature of a plurality of reversing heat exchanger units provided in parallel relation with each other. The balancing method comprises the steps of: detecting the temperature in portions of each core of the reversing heat exchangers whenever the flow paths of a feed stream and a heat medium stream are changed over, calculating a mean temperature of each core from the said detected values during the most recent certain changeover period from the current time point, calculating a mean temperature for all exchangers from the said calculated mean temperatures of each core, calculating deviation and deviation trend in temperature of respective exchangers depending on a difference between the mean temperature of each core and the mean temperature of all exchangers, feeding back a system deviation in dependence on the said deviation and deviation trend to control valves for balancing the temperature of reversing heat exchangers.