Abstract: The invention relates to a light source unit control method and a light source control unit, and a light source unit comprising a filament lamp with a characteristic of having a light quantity changing almost in proportion to a control voltage, which comprise: a current detection sensor connected in series to the lamp; a multiplication circuit for generating a voltage Vw proportionate to the product of a terminal voltage V of the lamp and an output voltage V1 of said current detection sensor; a multiplication circuit for generating a voltage VWW proportionate to the square root of said voltage VW; an error amplifier circuit for controlling an error to the minimum by comparing the output voltage VWW of said multiplication circuit and the control voltage V1 and a constant voltage power source unit for supplying an electric power to the filament lamp, the unit being connected to an output terminal of the error amplifier circuit, wherein the light quantity of the lamp is controlled by controlling the control volt

Abstract: The invention relates to a light source unit control method and a light source control unit, and a light source unit comprising a filament lamp with a characteristic of having a light quantity changing almost in proportion to a control voltage, which comprise: a current detection sensor connected in series to the lamp; a multiplication circuit for generating a voltage Vw proportionate to the product of a terminal voltage V of the lamp and an output voltage Vi of said current detection sensor; a multiplication circuit for generating a voltage VWW proportionate to the square root of said voltage VW; an error amplifier circuit for controlling an error to the minimum by comparing the output voltage VWW of said multiplication circuit and the control voltage Vi and a constant voltage power source unit for supplying an electric power to the filament lamp, the unit being connected to an output terminal of the error amplifier circuit, wherein the light quantity of the lamp is controlled by controlling the control volt

Abstract: The invention relates to a light source unit control method and a light source control unit, and a light source unit comprising a filament lamp with a characteristic of having a light quantity changing almost in proportion to a control voltage, which comprise: a current detection sensor connected in series to the lamp; a multiplication circuit for generating a voltage Vw proportionate to the product of a terminal voltage V of the lamp and an output voltage V1of said current detection sensor; a multiplication circuit for generating a voltage VWW proportionate to the square root of said voltage VW; an error amplifier circuit for controlling an error to the minimum by comparing the output voltage VWW of said multiplication circuit and the control voltage V1 and a constant voltage power source unit for supplying an electric power to the filament lamp, the unit being connected to an output terminal of the error amplifier circuit, wherein the light quantity of the lamp is controlled by controlling the control volta

Abstract: There are disclosed an automatic ice maker and its operating method. A pair of ice making chambers are longitudinally arranged to face each other across a cooling tube. A plurality of ice making compartments are defined in each ice making chamber. On the open side of the ice making chamber, water trays for opening/closing the ice making chamber are arranged in parallel to be laterally moved. The water tray is moved between an ice making position for closing the ice making chamber and an open position for opening the ice making chamber by an opening/closing device. When a deicing operation is carried out, the water tray is laterally moved to the open position while ice cubes are frozen thereto to remove the ice cubes from the ice making compartments, and the cubes are deiced from the water tray in this open position.

Abstract: The invention relates to a light source unit control method and a light source control unit, and a light source unit comprising a filament lamp with a characteristic of having a light quantity changing almost in proportion to a control voltage, which includes: a current detection sensor connected in series to the lamp; a multiplication circuit for generating a voltage Vw proportionate to the product of a terminal voltage V of the lamp and an output voltage V1 of the current detection sensor; a square root circuit for generating a voltage V2 proportionate to the square root of the control voltage V1; an error amplifier circuit for controlling an error to the minimum by comparing the output voltage Vw of the multiplication circuit and the output voltage V2 of the square root circuit; and a constant voltage power source unit for supplying an electric power to the filament lamp, the unit being connected to an output terminal of the error amplifier circuit, wherein the light quantity of the lamp is controlled by c

Abstract: There are disclosed an automatic ice maker and its operating method. A pair of ice making chambers are longitudinally arranged to face each other across a cooling tube. A plurality of ice making compartments are defined in each ice making chamber. On the open side of the ice making chamber, water trays for opening/closing the ice making chamber are arranged in parallel to be laterally moved. The water tray is moved between an ice making position for closing the ice making chamber and an open position for opening the ice making chamber by an opening/closing device. When a deicing operation is carried out, the water tray is laterally moved to the open position while ice cubes are frozen thereto to remove the ice cubes from the ice making compartments, and the cubes are deiced from the water tray in this open position.

Abstract: The invention relates to a light source unit control method and a light source control unit, and a light source unit comprising a filament lamp with a characteristic of having a light quantity changing almost in proportion to a control voltage, which comprise: a current detection sensor connected in series to the lamp; a multiplication circuit for generating a voltage Vw proportionate to the product of a terminal voltage V of the lamp and an output voltage V1 of said current detection sensor; a square root circuit for generating a voltage V2 proportionate to the square root of the control voltage V1; an error amplifier circuit for controlling an error to the minimum by comparing the output voltage Vw of said multiplication circuit and the output voltage V2 of said square root circuit; and a constant voltage power source unit for supplying an electric power to the filament lamp, the unit being connected to an output terminal of the error amplifier circuit, wherein the light quantity of the lamp is controlled b

Abstract: A beer pouring faucet 14 provided in front of the server main body 12 extends from the faucet main body 18 and includes the operating lever 20 which functions to change pouring of beer or the head by tilting the lever back and forth. The drive apparatus 26 which is capable of automatic operation of the operating lever 20 comprises a housing 32 provided movably vertically with respect to the server main body 12, a horizontally movable slider 34 in forward and backward directions housed in the housing 32 and a drive mechanism 36 which moves the slider 34 forward and backward, The drive apparatus 26 is positioned at an operating position where the operating lever 20 is inserted into the engagement hole 61 of the slider 34 or at a non-operating position where the operating lever 20 is separated from the engagement hole 61 by moving the housing vertically.

Abstract: A drive apparatus is easily detachable from an operating lever, and the manual and automatic operation of the lever can be easily changed.

Abstract: A dishwashing machine the washing tub of which is opened at the top and is provided at its bottom portion with lower nozzle arms 51, 52. An upper opening of the washing tub is closed or opened by a door 20 which is provided with a top plate 21 of semi-circular cross-section and rotatable in its semi-circular direction along a pair of side walls of the washing tub. An upper nozzle arm is provided inside of the top plate at the central portion thereof. A water supply passage is provided along an internal surface of the door to supply a portion of hot wash water or rinse water supplied to the lower nozzle arms to the upper nozzle arm. When the upper opening of the washing tub is opened, the door and upper nozzle arm are housed in a rear portion of said washing tub.

Abstract: A high aromatic-content solvent having a boiling point range of 185.degree.-245.degree. C. and a mixed aniline point of not higher than 21.degree. C. is produced by reforming a petroleum fraction containing at least 50% by volume of components having a boiling point range of 150.degree.-215.degree. C. and then subjecting to a fractional distillation.

Abstract: A dishwashing machine having a washing chamber, a wash tank provided at a bottom of the washing chamber to store an amount of hot wash water therein, a wash pump mounted to a bottom portion of the tank to pump up the wash water therefrom, a pair of wash arms supplied with the wash water by the wash pump, a rinse pump arranged to pump up fresh hot water supplied thereto from a source of hot water, and a pair of rinse arms supplied with the fresh hot water by the rinse pump, a drain box arranged within an upper portion of the tank and associated with a side wall of the tank to form an opening in communication with the bottom portion of the tank, a drain pipe connected to a bottom wall of the drain box and being extended outwardly through the bottom wall of the tank to drain the wash water received by the drain box, an overflow pipe secured to the bottom wall of the drain box to permit the upward flow of wash water from the bottom of the tank, and a tiltable plate arranged above the drain box to introduce the wa

Abstract: A process for producing methylnaphthalenes is disclosed, comprising subjecting a fraction containing at least 50% by volume of components within the boiling range of 195.degree.-215.degree. C., which is obtained by distilling a raffinate resulting from the recovery of normal paraffins from a hydrodesulfurized kerosene fraction, to reforming reaction and then recovering methylnaphthalenes from the product oil.

Abstract: In a dishwashing machine having a washing chamber, an electrically operated wash pump for pumping out wash water from a wash tank in the washing chamber, an electrically operated rinse pump for pumping out heated water from a gas booster heater, and wash and rinse arms arranged within the washing chamber to be supplied with the wash and heated water from the wash and rinse pumps for directing jet streams of the wash and heated water to tableware racked in the washing chamber respectively, an electric control apparatus is arranged to mix cold water from a source of cold water into the heated water to form mixing water and to control the rinse pump such that the rinse arm directs jet stream of the mixing water to the racked tableware.

Abstract: A binaural sound reproducing system includes a transducer for translating the recorded binaural information into an electrical signal on each of separate channels and a convolution integrator on each separate channel connected to receive the output from the transducer to compensate for acoustical differences resulting from the facial difference between the dummy head used for recording the binaural signal and a particular listener.

Abstract: A binaural four-channel stereophony comprises at least two dummy heads each provided with microphones at the ears of the dummy to pick up signals from various sound sources or groups of sound sources. The binaural signals representing each sound source or a group of sound sources are coupled to an acoustic crosstalk cancellation circuit and eventually applied to two front or two rear loudspeakers. Each sound source or group of sound sources is localized between adjacent ones of the four speakers to simulate the binaural effect produced in a closed-circuit type binaural sound reproducing system.