Abstract:
A method of producing an abrasive roll comprises the steps of forming a mixture of substances such as abrasive grains, a bond, a temporary caking agent and a pore forming agent, molding the mixture into a body having a predetermined shape, and drying and then burning the body. The pore forming agent is constituted from a rice hull powder sieved to have a predetermined particle size, thereby enabling to produce an abrasive roll of high porosity which has pores having substantially ball-like shape and substantially uniform size and includes a bond having portions of high SiO.sub.2 concentration each adjacent to and surrounding one of the pores.
Abstract:
A supply line for supplying a sealant from a sealant supply source to a sealing robot has pressure sensors and is coupled to relief valves through branch lines. If the pressure in the supply line excessively rises or drops, then the relief valves are opened to release the pressure from the supply line and the supply pump is inactivated. The pipes, devices, and pump on the supply line are therefore protected from damage. The sealing robot has an sealant applicator gun movable with respect to an article to which the sealant is to be applied by the sealing robot. A pump driving device is controlled to vary the rate at which the sealant is discharged from the pump as a function of the speed of relative movement of the sealant applicator gun with respect to the article.
Abstract:
Disclosed is a vibratory grain sorting machine which comprises an assembly to be vibrated at least including a frame and at least one stack of sorting plate members. The assembly to be vibrated is pivotally supported on a base structure by a plurality of strut units. At least one of the strut units has a top end pivotally connected to a side wall of the frame and a bottom end pivotally connected to the base structure. Each of the remaining strut units has a top end pivotally connected to a bottom wall of the frame and a bottom end pivotally connected to the base structure. A vibrating device is connected to the frame to apply a force substantially toward and away from the center of gravity of the assembly to be vibrated, thereby angularly reciprocating the assembly to be vibrated, around the bottom ends of the respective strut units.
Abstract:
A rice polishing machine comprises a rotatable shaft, a polishing roll mounted on the shaft for rotation therewith, and a perforated cylindrical polishing assembly disposed in substantially concentric relation to the shaft. The cylindrical polishing assembly has its inner circumferential surface which cooperates with an outer circumferential surface of the polishing roll to define therebetween a polishing chamber. Partition wall members engage with an outer circumferential surface of the cylindrical polishing assembly at a location below an axis of the shaft for dividing the outer circumferential surface into an arcuate bottom surface section and the remaining arcuate surface section and for defining an upper space to which the bottom surface section is exposed and a lower space to which the remaining surface section is exposed. An air delivery device delivers air such that the air is introduced from the lower space into the polishing chamber through apertures in the bottom surface section and then to be introduced from the polishing chamber into the upper space through apertures in the remaining surface section. The air introduced from the lower space into the polishing chamber through the apertures in the bottom surface section of the perforated cylindrical polishing assembly imparts an upward force to the rice grains which are liable to be collected and stagnated in the lower portion of the polishing chamber, to thereby make the rice grains uniform in density around the entire polishing chamber.
Abstract:
A particle scattering prevention device for use in a color sorting apparatus for sorting particles according to their colors, the apparatus being of the type having a photoelectric sorting chamber accommodating a photoelectric detectors; and a blowing nozzle device adapted to operate in response to the detection output from the photoelectric detector to selectively blow air to the flow of particles to sort out the particles of the different color. The device has a scattering prevention wall disposed between the photoelectric detector and the blowing nozzle device and having a passage bore to permit the flowing particles to pass therethrough, thereby to divide the space in the photoelectric sorting chamber into a light detecting section and a blowing sorting section. Thanks to the provision of the scattering prevention wall, the dusts and particles suspended by the blown air in the blowing sorting section are prevented from coming into the light detecting section to eliminate the erroneous sorting operation attributable to the presence of dusts and particles in the light detection section. The undesirable attaching of dusts to the photoelectric detectors, as well as suspension of particles by the air, is suppressed further by means of a suction blower connected to the blowing sorting section, or means forming air curtains in parallel with and in the close proximity of transparent window plates of optic detection chambers housing the photoelectric detectors.
Abstract:
Disclosed is the improvements in whitening apparatus for producing strongly glossy white rice without using any gloss additive. The improved apparatus wherein: friction between half-finished white rice grains which have been moistened while being supplied to a whitening chamber of the apparatus is caused by the rotation of a whitening roll axially disposed in a perforated bran-removing and whitening cylinder, said roll and said cylinder are defining therebetween said whitening chamber, whereby the surfaces of grains are fully cleaned of bran which is constantly discharged through the perforated wall of said cylinder, thereby enabling to expose hard portions of white rice grains devoid of bran. The ratio between the length and diameter of said cylinder experimentally substantiated for best results may be between 2:1 to 20:1.
Abstract:
A rice pearling apparatus of the type including a pearling chamber formed by a pearling roll and a multiple-holed debranning-pearling cylinder surrounding the roll, and a device for feeding rice to the pealing cylinder, further comprises a device for supplying water to the pearling chamber, flow meters for measuring and indicating the rates of rice and water flow into the chamber, and a device for regulating the respective flow rates of rice and water.
Abstract:
A flour milling method and system therefor comprising the steps of separating foreign materials from raw wheat, humidifying the raw wheat, polishing the raw wheat, and conditioning the polished wheat, further comprises a step of cleaning the polished wheat at a subsequent step of the polishing the raw wheat. The flour milling method and system therefor may further comprises a step of stirring the cleaned polished wheat at a subsequent step of the cleaning step of the polished wheat. The bran powder which has been entered into the creases of the polished wheat at the polishing step, absorbs cleaning water and then flows out from the creases with the cleaning water. Since the bran powders in the creases of the polished wheat can be removed effectively, the milling efficiency is improved.
Abstract:
A two-stator induction synchronous motor includes a unitary rotor having a first rotor assembly and a second rotor assembly each of which is formed by a permanent magnet and a rotor core. The first rotor assembly and the second rotor assembly respectively have a first pair of and a second pair of magnetic poles of the permanent magnets disposed in such a relative relation that the former and the latter are displaced by 180.degree. or 0.degree. with each other. The motor also includes a phase shifting means which produces a phase difference of 0.degree. or 180.degree. between a voltage induced in rotor conductive members by a rotating magnetic field generated around the first rotor assembly and a voltage induced in rotor conductive members by a rotating magnetic field generated around the second rotor assembly. The two permanent magnets are disposed in such a relation that the attracting or repelling action of one permanent magnet and the repelling or attracting action of the other permanent magnet cancel each other, so that the starting operation is not interfered with. The starting operation is the same as in an induction motor and the running operation is as in a synchronous motor.
Abstract:
An apparatus for evaluating the grade of rice grains includes a grain supply unit, vibrating troughs on which the rice grains run in their longitudinal posture, flow-down troughs having slits each opening to each of the flow-down troughs, a reflected light measuring unit having its light sources and its detecting element for detecting the amount of the light reflected from the rice grains, a transmitted light measuring unit having its light sources and its detecting element for detecting the amount of the light transmitted through the rice grains at the positions of the slits, and a calculation control unit for digitally calculating the values measured at the reflected light measuring unit and the transmitted light measuring unit for evaluating the rice grains into a plurality of grades. The light sources for reflection may be of visible light and the light source for transmission may be of infrared light. Also, it is possible to use a single unit, namely, a reflected and transmitted light measuring unit, having a reflected light detecting element and a transmitted light detecting element for measuring both the reflected light amount and the transmitted light amount from the rice grains at the same positions of the slits.