Abstract: A machine for cleaning and polishing grains comprises at least one treatment chamber which includes an upper frusto conical baffle having a central opening to admit grains thereinto, an intermediate rotatory disc to impart movement to the grains falling thereon through said opening and a lower frusto conical baffle having a central opening to discharge the grains, said upper frusto conical baffle having a stationary brush and a stationary set of flexible fingers vertically hanging therefrom, and said rotatory disc having a rotatory brush and a rotatory set of flexible fingers hanging from its lower surface in a direction and to a distance suitable to confront the upper surface of said lower frusto conical baffle, whereby the grains are cleaned by the action of said stationary brush and set of fingers on the moving grains driven by the rotatory disc, and by the action of said rotatory brush and set of fingers on the grains sliding down said lower frusto conical baffle.

Abstract: The versatility of a grain husking and polishing machine to treat grains of different types is improved by providing a grain treatment chamber constituted by an abrasive rotor mounted on a fixed axis and a screen assembly surrounding said rotor and mounted on a movable annular plate actuated by a sidewardly movable mechanism capable of changing the eccentrically of said screen assembly with respect to said rotor. A more efficient combined husking and polishing action is accomplished by providing a rotor comprising a plurality of cam-like abrasive discs spaced apart by a corresponding plurality of spacer rings having a diameter smaller than that of the discs so as to form grain expansion chambers therebetween, whereby an energetic husking action followed by a moderate abrading polishing action are effected along the treatment chamber.

Abstract: High purity mucilage from Plantago psyllium seeds may be obtained by grinding the integral Plantago psyllium seeds by subjecting the same to pure impact grinding action without any rubbing, with an impact speed of from approximately 30 to approximately 40 meters per second and with a flow rate of the integral seed suitable to maintain the individual seeds spaced so that the impact strength is maintained constant for each seed, whereby the husk is removed from the core of the seed without fracturing said cores, in order to avoid contamination of said husk with particles of the core of the seeds.

Abstract: A screen and rotor assembly for a grain husking, decorticating, polishing and whitening machine, and including an abrading screen supported by a screen holder, and an abrading rotor concentrically arranged within the abrading screen. The spacing between working surfaces of the abrading screen and the abrading rotor is maintained at a constant value, despite wear of the abrading surfaces thereof, by a plurality of axially extending channels in the screen holder for housing a corresponding plurality of abrading members such that the abrading members in turn support the edges of a plurality of alternate screen members located between each pair of consecutive channels, the channels being provided with a plurality of adjustable fasteners for holding the abrading members and for adjusting the radial position thereof.

Abstract: A rice mill comprising grain feed means, grain husking means connected to said grain feed means, paddy removing means connected to said grain husking means, first grain elevating means connected to said paddy removing means, grain polishing and whitening means connected to said first grain elevating means, second grain elevating means connected to said polishing and whitening means, grain classifying means connected to said second grain elevating means, bin means connected to said grain classifying means, and pneumatic cyclonic separating means for removing light materials from said paddy removing means, said grain husking means, said polishing and whitening means, and said grain classifying means, is rendered capable of full pneumatic conveyance of the grain by the provision of first, second and third grain decelerating and abrading sifter means at the entrances of said grain husking means, said grain polishing and whitening means and said grain classifying means, respectively, and sieve means between each s

Abstract: A grain polishing and whitening machine, particularly adapted for treatment of rice, comprises a base box, housing means having first, second, third and fourth coaxially arranged housing sections, said second housing section being coaxially mounted on said first housing section such that it may be rotatably displaced with respect thereto, said third section being coaxially mounted on said second section, and said fourth section being coaxially mounted on said third section such that it can be rotatably displaced with respect thereto, concentric hollow rotor means extending through said first, second and third housing sections, grain feed means in said second housing section, screw conveyor means within said second housing section and having a helical rib lined with an abrasive layer, for displacing and rubbing said grains along said second housing section and into the third housing section, cylindrical indented screen means in said third housing section adjustable, diametrically opposed, diagonally fluted kni

Abstract: An induction type cyclonic separator particularly adapted for handling adherent or sticky materials, comprises downwardly converging lower frustoconical body means having a larger diameter upper circumferential edge and a smaller diameter lower circumferential edge for forming an outlet for separated solid material; downwardly diverging upper frustoconical body means having a smaller diameter upper circumferential edge and a larger diameter lower circumferential edge, said lower circumferential edge being introduced within the upper circumferential edge of said lower frustoconical body means in order to have said lower circumferential edge of said upper frustoconical body means arranged concentrically within the conical wall of said lower frustoconical body means; annular lid means between said upper and said lower body means for closing the span therebetween, inlet means tangencially arranged on the wall of said upper body means; circular lid means on the upper end of said upper frustoconical body means; ver

Abstract: A universal modular screening, classifying, cleaning and sizing machine for dusty material, comprising a frame which supports a screen box by means of cables permitting the free oscillation of the box; the screen box containing spaced parallel screens and having passages for the material to enter the screen box and to discharge same at various levels, including air flow entry and outlet channels, and at the bottom of the screen box, a mechanism to produce the oscillation of the screen box; wherein the mechanism for producing oscillation of the screen box is composed of overlying counterweights which are capable of being moved relative to one another, opening and closing in the manner of a fan, releasably clamped between a holder which is driven at variable speed and a rotating hub whose support shaft is fixedly attached to the bottom of the screen box and the oscillating mechanism is located away from the center of gravity of the screen box at the head of the machine toward the material infeed, producing an o

Abstract: A whitening, polishing or pearling machine for grains and cereals and more particularly for rice, vertically disposed, composed of an integral chamber which has an entry or grain feeder, said grain being transported to a section where it is treated in order to whiten or polish it, the grain once treated being passed through a centrifugal extractor to collect the product, or to a regulating hopper which is connected directly to another machine exactly like the first in order to complete the treatment or to another process if the grain has now been totally polished.The grain is treated by centrifuging by means of a rotor which casts it toward screens, raising it by the thrust of a feed screw which rubs the grains against each other, against the screens and also against work-intensifying knives located within the treatment section or chamber, driving out the particles of the flour produced during treatment to a discharge where they are collected.