Abstract: The position of a ship moored by at least three anchor ropes extending between the ship and independent remote anchor points is corrected by a control system comprising a rope orientation angle detector, a device for designating the angle and amount of movement of the ship which are necessary to correct the position of the ship, a position correction parameter designating device which determines whether parallel movement or swinging movement is to be made to correct the position of the ship and sends the result of determination to the rope orientation angle detector, a deviation operator which compares the angle of movement with the rope orientation angle for producing an output corresponding to the differential angle, a rope extension and contraction control device responsive to the outputs from the deviation operator and the rope orientation angle detector for producing an output for commanding paying out or taking up of respective anchor ropes, and winches mounted on the ship for operating respective ancho

Abstract: Vertical tube type cracking furnace in which a convection-heating section for preheating the process fluid is provided above the combustion chamber, and gas passages connecting the convection-heating section and the combustion chamber are symmetrically provided.

Abstract: In a simulator of the class which is operated repeatedly according to the same program there are provided a mini-computer, a time axis controller and a communicating device. The time axis controller provides a pulse to the mini-computer for controlling the timing of the programmed processing operation thereof and is provided with means for manually varying the period of the pulse thereby to vary the timing of the programmed processing operation while observing the content of the display provided by the communicating device.

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: 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 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.