Abstract: A device for comminuting feed material with first comminuting tools and second comminuting tools, which are arranged inside a housing coaxially to an axis and which are axially spaced apart to form a comminuting zone, and of which at least the first comminuting tools perform a rotational movement about the axis. In a contact area between a first tool carrier and the first comminuting tools and/or in a contact area between a second tool carrier and the second comminuting tools a plurality of channels for the passage of a process gas are provided. The channels each have a radially inner inlet opening through which the process gas enters the channels and a radially outer outlet opening through which the process gas emerges from the channels. Among other things, this achieves improved cooling of the comminuting zone.

Abstract: A biomass torrefaction system includes a mill which receives a raw biomass feedstock and operates at temperatures above 400 F (204 C) to generate a dusty flue gas which contains a milled biomass product.

Abstract: Rotor mill for laboratory operation, comprising a rotor coupled to a drive motor as a milling tool, a ring sieve (28) surrounding the milling chamber (25) of the rotor mill (18) and an annular connecting container (26) for the ground milling material, which collecting container is arranged on the outer circumference of the ring sieve (28) and can be inserted into the housing of the rotor mill and is provided with a cover (29), the milling unit comprising the rotor (18), the ring sieve (28) and the collecting container (26) being closable by a housing cover (15) having a milling material inlet opening (17), is characterized in that at least one component of the milling unit and/or of the rotor mill that directly or indirectly surrounds the milling chamber (25) of the rotor (18) is designed for conducting and/or accommodating a cooling medium and/or for cooling by means of a gaseous cooling fluid flowing around on the outside, said gaseous cooling fluid having been introduced into the housing.

Abstract: A device (1) for grinding roasted grains, in particular coffee beans, of a kind including a grinding chamber (9) in which one or more electrically operated grinders grind coffee beans in order to reduce them to powder. The grinding chamber of the device is equipped with a plurality of cooling fins (29) that assist in removing heat produced during grinding, without the need to use cooling fins or similar cooling devices. Thanks to the provision of the cooling fins (28), the device (1) is inexpensive and compact and avoids an excessive increase in coffee temperature during grinding, thereby preserving the organoleptic qualities of the coffee.

Abstract: Systems, methods, compositions, and devices related to the delivery of one or more biologically active agents to a body include the admixture of one or more biologically active agents with one or more biocompatible polymeric mixtures in a solid-state shear extrusion system. The extrusion systems may include one or more extrusion screws. One or more portions of the one or more extrusion screws, one or more extrusion system active elements, one or more barrel sections, and/or one or more extruder work zones may be temperature controlled to maintain a temperature of the biocompatible polymeric mixture in contact therewith at or below the liquefication temperature of the biocompatible polymeric materials. The resulting compositions from the extrusion systems may be fabricated into devices to deliver the one or more biologically active agents to a body.

Abstract: A reducing machine having an air cooled cutting discs is disclosed. The air cooled discs have cutting surfaces on both sides. The cutting surfaces have edges which are sharpened for cutting input material when the cutting surface is facing the cutting surface of the opposed disc. When the cutting surface of the stationary disc is facing the housing, the cutting surface acts as a heat sink to air cool the stationary disc and the mill assembly in general. Air inlets in the housing lid permit air to flow over the cooling surface of the stationary plate. Air inlets in the carrying plate permit the carrying plate to channel air flow over the rotating cooling surface. A damper restricts air flow over the air cooling surfaces to control the temperature of the reducing machine, such as during start up.

Abstract: The present invention relates to a device (1) for grinding roasted grains, in particular coffee beans, of a kind including a grinding chamber (9) in which one or more electrically operated grinders grind coffee beans in order to reduce them to powder. According to the invention, grinding chamber (9) of device (1) is equipped with a plurality of cooling fins (29) which assist in removing heat produced during grinding, without need to use cooling fins or similar cooling devices. Thanks to the provision of said cooling fins (28), the device (1) according to the invention is cheap and compact and allows avoiding an excessive increase in coffee temperature during grinding, thereby preserving the organoleptic qualities of the coffee.

Abstract: A device for disposing of a container having a biological fluid contained therein. The device includes a housing having a first end and a second end. Proximate the first end is an opening through which the container is received. A shredding chamber, between the opening and the second end and within the housing, is configured to break the container into a plurality of pieces. A collection grid is positioned between the shredding chamber and the second end and within the housing. The collection grid is slidable with respect to the housing and is porous to the biological fluid and not to the plurality of pieces. A port, proximate the second end, is configured form removal of the biological fluid from the housing.

Abstract: A reducing machine having an air cooled cutting discs is disclosed. The air cooled discs have cutting surfaces on both sides. The cutting surfaces have edges which are sharpened for cutting input material when the cutting surface is facing the cutting surface of the opposed disc. When the cutting surface of the stationary disc is facing the housing, the cutting surface acts as a heat sink to air cool the stationary disc and the mill assembly in general. Air inlets in the housing lid permit air to flow over the cooling surface. A damper restricts air flow over the air cooling surface to control the temperature of the reducing machine, such as during start up.

Abstract: A food heating device contain: a cup and a base used to hold the cup and including a transmission mechanism. The cup includes plural ribs mounted around an inner wall thereof, and each rib extends downwardly along the inner wall of the cup. The cup also includes plural protrusions fixed on a bottom end thereof and a shaft secured at a central position of the bottom end thereof. The shaft has a blade disposed on a top end thereof, such that the shaft is inserted through the bottom end of the cup and is connected with a transmission mechanism via a bearing. Thereby, ingredients are crushed into juices after the transmission mechanism drives the blade, and during a crushing process, the shaft nibs with the bearing to produce a high temperature, and the ingredients are crashed in the cup by the plural ribs and the protrusions to be heated quickly.

Abstract: A device for comminuting bulk charge stock with a housing surrounding a rotational axis. The housing has a first front wall, a second front wall plane parallel at an axial distance and a shell wall connecting the first front wall and second front wall on the circumferential side, which together form a comminuting chamber. A comminuting system rotating about the rotational axis is arranged in the comminuting chamber, which comminuting system has first comminuting tools and second comminuting tools interacting therewith, which form a concentric comminuting zone for charge stock. In order to cool the comminuting zone effectively and economically, a cooling channel is provided, which surrounds the shell wall outside in the plane of the comminuting chamber, wherein the cooling channel has an entry opening for charging with cooling gas and an exit opening for the discharge of the cooling gas.

Abstract: A thermally controlled coffee grinder and method are disclosed. In some embodiments, a thermally controlled coffee grinder may have a heating or cooling element to adjust the temperature of a component of the coffee grinder in response to a measured thermal state of a component in the grinder in order to improve dosing consistency, ground coffee quality, etc. In other embodiments, a thermally controlled coffee grinder may detect a thermal state in the coffee grinder and utilize a computer control to adjust for consistent dosing amounts.

Abstract: A device for processing roasted coffee beans, including a unit for grinding the beans, and a method for processing coffee beans, wherein the coffee beans are ground and the temperature of the coffee to be ground, at least at the start of the grinding operation, is between 30° C. and 150° C., in particular between 35° C. and 100° C., preferably between 40° C. and 90° C., and more preferably between 40° C. and 60° C. For this purpose, the device includes a thermal unit.

Abstract: A mixing machine adapted to mix a liquid mixture containing bitumen with solid granules so as to obtain a homogenized bituminous mix. The machine includes a cylindrical container arranged coaxially to a vertical axis and capable of containing the liquid mixture containing bitumen and the solid granules, a heating circuit for heating the inner side surface of the cylindrical container, a mixing assembly mounted axially rotatable within the container to rotate about the vertical axis, and a driving unit adapted to rotate the mixing assembly about the vertical axis. The mixing assembly includes a helicoidal blade which extends coaxial to the axis within the container and has its outer peripheral edge in contact with the inner surface of the container so as to scrape the material adhering on the inner surface during its rotation.

Abstract: A grinding apparatus for dispensing a dose of ground frozen material starting from a frozen block. The apparatus comprises a grinding unit, for grinding the frozen block in order to provide an amount of ground frozen material and a feeding unit for feeding the frozen block to the grinding unit. In particular, the feeding unit comprises a feeding member that is adapted for moving frozen block for a desired predetermined grinding stroke against grinding unit such that a grinding length of block is ground. A grinding unit provides at least one grater and one motor for causing the grater to rotate. In order to obtain a desired weight of the dose, a volume of frozen material is calculated that corresponds to said weight, since the density of the frozen material is known.

Abstract: The invention relates to a method for reusing material by pulsed power, according to which a series of electrical discharges are generated between at least two electrodes in a reactor receiving an ambient liquid as well as the materials to he reused, characterized in that the series of said electrical discharges produce, as a result of the energy, the frequency of the electrical discharges, as well as, as a result of the voltage between the electrodes and the switching time, a mechanical shockwave which propagates over the materials to be processed in the reactor, and in that, during the implementation of said method, said ambient liquid is cooled by a continuous or carousel cooling system, said method enabling the production of nanoparticles.

Abstract: A biomass fractionator and method are described for inputting ground biomass and outputting several vapor streams of bio-intermediate compounds along with syngas and biochar. A method for biomass fractioning comprises dispensing biomass into thin sheets of ground biomass; subjecting the thin sheets to ramps of temperature; and selectively collecting various groups of compounds as they are released from the thin sheets.

Abstract: A machine for distributing insulation from a bag of insulation is provided. The machine includes a chute having an inlet end and an outlet end. The chute is configured to receive the bag of insulation. The inlet end of the chute has a cross-sectional shape that is substantially vertical and the outlet end of the chute has a cross-sectional shape that is substantially horizontal. A plurality of shredders is mounted at the outlet end of the chute and is configured to shred and pick apart the insulation. A discharge mechanism is configured for distributing the insulation into an airstream. The chute has a cross-sectional shape that approximates the cross-sectional shape of the bag of insulation and the plurality of shredders and the discharge mechanism are positioned beneath the outlet end of the chute.

Abstract: Disclosed is a media mixing mill, which is capable of obtaining a high-quality product while ensuring adequate pulverization/dispersion functions. The media mixing mill of the present invention includes a grinding container having a material inlet and a spherical-shaped grinding chamber, an agitating member rotatably installed inside the grinding chamber and in adjacent relation to an inner wall of the grinding container, grinding media contained in the grinding chamber, and a centrifugal-type media-separating member rotatably disposed inside the grinding chamber and in opposed relation to the agitating member.

Abstract: A process for milling amorphous solids using a milling apparatus can result in particles having a median particle diameter d50 of <1.5 ?m. The process includes: operating a mill in a milling phase with an operating medium selected from the group consisting of gas, vapor, steam, a gas containing steam and mixtures thereof, and heating a milling chamber in a heat-up phase before the actual operation with the operating medium in such a way that a temperature in the milling chamber, the mill exit or both, is higher than a dew point of the operating medium.

Abstract: A system and a method for producing a quantified defined portions of powder from at least one biological material at cryotemperature is shown, comprising means for grinding the biological material deposited in at least one first vessel to the powder; means for loosening the powder resulting from grinding the biological material in the first vessel; means for positioning at least one first opening in the first vessel, and means for transferring the quantified defined portions of powder in a plurality of second vessels by using the first opening as a transfer way.

Abstract: The invention discloses a system for processing bone product comprising at least a mincer and a comminuter (10), a method to operate such a system and a comminuter (10) for use in such a system and method.

Abstract: A mixing machine adapted to mix a liquid mixture containing bitumen with solid granules so as to obtain a homogenised bituminous mix. The machine comprising a cylindrical container arranged coaxially to a vertical axis and capable of containing the liquid mixture containing bitumen and the solid granules, a heating circuit for heating the inner side surface of the cylindrical container, a mixing assembly mounted axially rotatable within the container to rotate about the vertical axis, and a driving unit adapted to rotate the mixing assembly about the vertical axis. The mixing assembly comprises a helicoidal blade which extends coaxial to the axis within the container and has its outer peripheral edge in contact with the inner surface of the container so as to scrape the material adhering on the inner surface during its rotation.

Abstract: A high frequency disintegrator includes a plurality of high frequency vibration generators, a plurality of connectors, and at least a heat exchanger. The high frequency vibration generators each have an operational portion that axially outputs high frequency vibration energy. The connectors are respectively connected to the high frequency vibration generators, and each include an action portion for allowing the operational portion to axially output the high frequency vibration energy, an inlet, and an outlet, wherein the inlet and the outlet are connected to the action portion. The connectors are connected in series. The heat exchanging device dissipates heat from the connectors. The high frequency disintegrator eliminates the drawbacks of the conventional techniques.

Abstract: Apparatus for grinding biological samples contained in tubes (12) carried by a turntable (10) driven with oscillating motion, the zone in which the tubes (12) oscillate being surrounded by cooling means (30) enabling the samples in the tubes (12) to be maintained at a desired low temperature, e.g. 4° C., while they are being ground.

Abstract: A cryogenic grinding mill for grinding organic base material pieces into sub-micron-sized powder particles. An upper grinding block is rotated relative to a stationary lower grinding block by a motor, and is maintained at a temperature below ?150° C. by a cryogenic system including an annular liquid nitrogen chamber disposed around the grinding blocks. The upper grinding block defines a trench for receiving base material pieces fed by a feed system, and includes through-holes that extend from the trench to a grinding region formed between the grinding surfaces of the upper and lower blocks. When the upper grinding block is rotated, the base material pieces are gravity-fed from the trench to the grinding region, and ground powder material is forced to a peripheral edge of the grinding region. The powder material is then filtered, and particles having an undesirably large size are fed back into the trench for re-grinding.

Abstract: The present invention relates to a milling and water-air combined cooling system for bottom ash from heating furnaces for solid fuels, able to maximize the efficiency in milling and cooling also large ash lumps at high temperature and in improving cooling air fluid dynamics which passes said system in counter-flow. The system comprises a crusher (1) provided with a pre-crusher integral with the crusher's (1) port, a water cooling system (3-4), and a separation (5-6) of the flow of the fine material entering the crusher (1) from the lump sized ash. The pre-milling device (2) allows a partial milling of the large lumps and it is actuated by laser or equivalent sensors (7) which detect the presence of ash agglomerates in the milling area. The cooling water passes preferably throughout the shaft (8) of the toothed rotor (9) and/or throughout the fixed slab (10) and moves therefrom, through suitable ducts (4) and nozzles (3), to the milling area.

Abstract: A system and a method for producing a quantified defined portions of powder from at least one biological material at cryotemperature is shown, comprising means for grinding the biological material deposited in at least one first vessel to the powder; means for loosening the powder resulting from grinding the biological material in the first vessel; means for positioning at least one first opening in the first vessel, and means for transferring the quantified defined portions of powder in a plurality of second vessels by using the first opening as a transfer way.

Abstract: An exemplary grinding machine includes a grinding unit and a receiving unit. The grinding unit includes a rotor, a first spindle, and a first driver unit connected in series. The first spindle has a first end coupled to the rotor. The first driver unit is coupled to an opposite second end of the first spindle and configured for driving the rotor to rotate relative to a first axis. The receiving unit includes a container configured for receiving the rotor therein. The container has an inner spherical grinding surface defining a central second axis. The first axis is parallel to and spaced from the second axis.

Abstract: An apparatus for comminuting material includes two disks arranged coaxially to one another inside a housing that encloses a comminuting room. At least part of the opposing surfaces of the disks are provided with interacting comminuting tools thus forming a comminuting zone, whereby at least one of the disks rotates around a mutual axis to generate a relative movement of the disks. At the same time, the material, which is a mixture of gaseous and solid materials is axially fed by one of the disks into the comminuting room and is radially conveyed to the comminuting zone. Thereby, cooling gas is additionally channeled into the comminuting room. The comminuting room is partitioned into one chamber through which the mixture of gaseous and solid materials flows, and at least one additional chamber dedicated to the cooling gas.

Abstract: A rolling mill system has oppositely driven, temperature-controlled first and second rolls, each having a first roll half with a first end face, a second roll half with a second end face, and a roll center. The first roll has a peripheral surface with open grooves arranged on the first and second roll halves and with ribs between the grooves. The grooves of the roll halves are arranged opposed to one another at an obtuse angle and symmetrically to the roll center. The width of the ribs is smaller than the width of the grooves. The grooves extend continuously between the end faces. The second roll has a smooth peripheral surface. First and second cutting devices are arranged at the first and second end faces of the first roll, respectively. The cutting devices are arranged near open ends of the grooves.

Abstract: A process and apparatus for recovering conductor material from an installation cable with bunched conductors and plastic insulation cuts the installation cable into segments, presses and rolls the segments at an increased temperature ranging from 70° to 130° C. with the longitudinal axes of the segments perpendicular to directions of the rolling and sieves the segments for separating conductor material from the segments and, thereby, recovering the conductor material.

Abstract: The invention relates to a device for disaggregating pieces of derived timber products from cellulose and/or lignocel-lulose-containing products, especially particle boards, medium-density fiber boards and the like, with a transport device and at least one disaggregation container. The inventive device is also characterized in that the disaggregation container and the transport device are configured as at least one common densifier screw (1) with a housing-mounted outer shell and a driven shaft located therein. The shaft is provided with helices of a predefined pitch. The pieces of derived timber products are transported in the axial direction of the densifier screw (1) from a feed opening in the outer shell towards an outlet opening on the front side thereof in the axial direction (direction of transport). A feed opening (7) for vapor is provided in the outer shell between the inlet opening and the outlet opening.

Abstract: Coarsely crushed toner particles comprising at least a binder resin and a colorant are effectively pulverized by a mechanical pulverizer including a generally cylindrical rotor rotating about an axis and a stator surrounding the rotor with a minute gap from the rotor. Each of the outer wall of the rotor and the inner wall of the stator is provided with a plurality of grooves which extend generally in parallel with the rotation axis of the rotor and are formed of a wave-shaped plurality of projections and intervening recesses. Each recess on at least one of the rotor and the stator is provided with a flat-shaped bottom between a forward corner and a rear corner adjacent a forward slope and a rear slope respectively, with respect to the rotation direction.

Abstract: A device for grinding biological samples to extract DNA, RNA and proteins including a multiplicity of rotary hammers supported by a hammer-carrier block and a lower mobile tray, the tray being movable between an operating position close to the hammer-carrier block and a rest position away from the hammer-carrier block, each of the hammers comprising at least one conduit for distribution of liquid.

Abstract: This invention is directed to a shredding machine utilizing a lubrication process to increase the shredding capacity and service life of the machine. More specifically, the invention discloses a distribution manifold containing a plurality of uniformly dispersed pores which discharge fluid across the cutting elements of the shredding machine in a precise and even manner. The pore diameter and length can be chosen to provide for variable fluid discharge rates. Additionally, this invention relates to a lubrication discharge system which utilizes an actuating means that controls the discharge intervals over which the porous manifold releases the fluid. Provisions are included which allow for the lubrication discharge system to operate by use of a pump, or by the mere force of gravity in combination with a control valve.

Abstract: A bag opener for opening bags containing recyclable materials includes a source of heat sufficient to melt the bags and an assembly that brings the bags into the vicinity of the source of heat to open the bags. In a preferred embodiment the source of heat includes a heated member and the assembly brings the bags into contact with the heated member to open the bags.

Abstract: Apparatus and method for separation, recovery, and recycling municipal solid waste and the like by introducing solid waste materials into a pressure vessel having a rotatable section. The vessel is disposed for subjecting the waste material to heat and pressure while simultaneously applying an extruding action to the solid waste material. The extruding action is achieved by a rotatable extruder mechanism carried in the pressure vessel and rotated in response to the rotating section thereof. The rotation forces the processed solid waste material through a pair of constricted areas before the waste material is expelled from the pressure vessel by rotation of the extruder mechanism.

Abstract: This invention provides a method and a combination for automatically oiling a paper shredder with oil drops when it is running in the reverse direction, and after a predetermined running time in the forward direction.

Abstract: A device for processing materials such as rock, ore, clay, bulk materials and agglomerated pulverized materials includes at least two tools having working surfaces thereon of at least partially circular cylindrical cross section. The tools are oriented such that the working surfaces thereof are in opposed horizontally spaced relation, and the device includes a mechanism for moving at least one of the tools with an up and down pendulum motion about the respective axis thereof. The tools include upper surface portions and lower surface portions, and the upper surface portion of at least one of the tools has a plurality of comminuting projections thereon for preprocessing relatively large sized materials. The lower surface portions of the tools are substantially smooth, and they are positioned in closely spaced relation for processing materials therebetween to form a finely milled and product.

Abstract: For the recovery of the protein from oil seeds, particularly from soy beans, grinding is effected under omission of a suspension liquid, i.e. substantially in dry condition of the oil seed, by applying pressure and friction until the cell walls of the oil seed are opened. This is preferably realized on a friction roller refiner comprising at least two rollers of different speed, i.e. for example on a three-roller-refiner, a five-roller-refiner or also at least two two-roller-refiners. Surprisingly, in this way the expenditure in energy is reduced and the quality of the product is improved.

Abstract: An attachment for the boom structure and hydraulic system of a hydraulic excavator, including a pair of relatively swingable jaws for crushing concrete slabs and the like, each of the jaws having a grid like jaw structure with elongate rigid plates extending outwardly from the pivot structure, there being a multiplicity of tapered tooth like projections on the grid structure of the jaws, the tooth like projections being of various lengths, at least one of the jaws being connected to the hydraulic system to open and close the jaws to apply pressure and fracture concrete structures being gripped and crushed.

Abstract: Three mill units are mounted axially in series in a mill housing with a cover. Each mill unit has a rotor disc between two stator discs. The rotor discs are secured to the rotor shaft at their radially interior region. The stator discs are secured to the housing wall at their radially outer region. Individual pulverization gaps are formed between the stator discs, which gaps run around the rotor discs and in longitudinal cross section extend sequentially with a serpentine shape. The outer parts of the pulverization gaps form individual gap loops the inner ends of which are connected or "short-circuited" via ball return channels. During operation, the grinding elements are accelerated outward by centrifugal forces, and are concentrated into the gap loops. The grinding elements in each of the individual stages may be kept separated from the grinding elements in other stages; and they may have different sizes from stage to stage. The individual mill stages can be replaced as units.

Abstract: Automatic apparatus for dispensing a food material such as pizza meat. The apparatus utilizes a rotatable valve for conveying a food material from a source thereof to an intermediate, or portioning, cylinder, to a main cylinder where it is introduced into a dispensing station which includes a reciprocatable knife plate. An air actuator is used to rotate the rotatable valve. Non-contact solid state sensors, and pneumatic control valves are employed to control the continuous movement of a food material through the apparatus.

Abstract: The present invention relates to a fluid processing apparatus particularly useful for processing fluid foods in a highly uniform, "non-statistical" manner at controlled temperatures and high shear rates. The apparatus comprises a first means including an essentially smooth and unencumbered concave cylindrical surface of constant radius; a second means including an essentially smooth and unencumbered convex cylindrical surface having a constant radius which is less than, but not more than about 2 mm less than, the constant radius of said first means; said first and second means being arranged in mutually concentric relation with one another and such that there is a uniform annular treatment zone consisting of the gap formed between said first and second means, said treatment zone being arranged in heat transfer relation with a source of heat transfer medium; and, a third means for providing relative rotary motion between said first and second means, about the common longitudinal axis of symmetry thereof.

Abstract: An apparatus for fine grinding of, in particular, material samples for laboratory experiments. The apparatus has a fixed grinding member and a rotating grinding member, which are disposed in such a way that each has a surface facing the other and slightly spaced therefrom, with the material which is to be ground being received and passed between these surfaces. The problem faced by such an apparatus is that samples have to be introduced and discharged one by one, so that the work is carried out as a batch process. It is also difficult to accurately adjust the grinding degree. In order to solve these problems, and to carry out a continuous grinding of hard and very hard materials, as well as to be able to adjust the grain size of the grinding, the invention proposal is that the grinding members on the one hand be a fixed cylindrical body and on the other hand be a roller body which rotates coaxially therein.

Abstract: Apparatus for grinding materials, particularly sticky materials of organic and inorganic origin. The apparatus has a cylindrical casing in which, along its axis, a rotor in the shape of a disc mounted, the disc being driven by a prime mover. The disc has evenly distributed along its circumference on both of its sides. One of the openings in the casing is closed by a fixed front cover having a receiving neck, disposed along its axis and counter-pins designed on the inside of the casing and evenly distributed along a circumference. A ground material discharge opening is disposed between the disc and a back cover for the casing. The rotor is enveloped by a bushing firmly fixed to the casing and longitudinal races are disposed on the side of the rotor, and on the external side circumference cooling closed races are located.

Abstract: A coffee grinder grinds a predetermined amount of roasted coffee beans based upon the weight of the beans. The beans fall from a hopper into a grinding head which grinds the beans in a two-stage process. The first stage includes a cracking cutter, consisting of a cone cutter and a reel cutter, which reduces the beans to an initial particle size of approximately 1/16 of an inch in cross-section. The particles are then progressed by the grinding head, for the second stage of fine grinding, to an adjustable micro grinder consisting of two opposing rings having micro teeth on their inwardly facing surfaces. The cutters and grinder rings are mounted on thermally conductive metal hubs and a fan draws air around and behind the cutting teeth to cool them and avoid heating the coffee particles during the grinding process.

Abstract: A tissue pulverizer for pulverizing specimens of living tissues for facilitating chemical testing and the like. The pulverizer has a base, a guide member for emptying into a receiving tube and an elongated pestle member. The parts are cooled with liquid nitrogen and the specimen inserted, covered with the cooled pestle and frozen. The pestle member is then struck with a hammer to pulverize the frozen sample.

Abstract: One aspect of the invention is a tire debeading machine (10). A tire is supported on a guide apparatus (15) and raised to an operative position by the action of a support arm (21). A cutting blade (33) is moved against the sidewall of the tire, cutting off the bead. After the initial cut is made, the tire is raised slightly further by the combined action of an initially interlocking vertical arm (75), which extends from said support arm (21), and a roller (71) on an L-shaped arm (69). The further cut by blade (33) is closer to the bead. Another aspect of the invention is a granulating machine which includes three feed rollers (93) (95) (97) which feed the debeaded tires into a cylindrical cutting chamber (106). Inside the cutting chamber (106) are a plurality of rotary cutting blades (127) mounted on mounting plates (130), which cooperate with stationary cutting blades to produce granulated rubber particles and fiber particles.