Abstract: A conveyor system for a coffee grinder for taking ground coffee from the grinder to the packing machinery, and a laser test-meter used to analyze the granulometry of ground coffee test samples and compare them with a granulometric reference sample that are known. The system of the invention includes improvements which include a first device which continually receives undisturbed ground coffee samples and delivers these samples to a second device in which a gas stream blows a stream of coffee grains down a tube to the test-meter and a second stream of gas flowing at right-angles to the tube disperses any partially aggregated particles before they reach the test-meter. A third device creates a pressurized safety area around each lens of the laser test-meter. The area is partly closed so that laser beams can freely pass, and gas under pressure enters the area preventing coffee grains from entering the area and disturbing the lens.

Abstract: An apparatus for reducing, dispersing, wetting and mixing pumpable, non-magnetic multiphase mixtures comprises a sealed annular-gap chamber having an annular gap which forms a working chamber, into which the material to be worked flows in from the bottom and flows out from the top. This annular-gap chamber is formed by a double tube, the outer tube of which is surrounded by an outer exciter system and the inner tube of which is surrounded by an inner exciter system. In the working chamber there are, apart from the material to be worked, freely mobile magnetic working media, which move in the direction of the rotating electromagnetic fields within the multiphase mixture flowing through the annular-gap chamber and perform translatory transverse motions and tumbling motions. Within the working chamber or the annular gap there exist an inflow zone and an outflow zone, which are in each case free from working media.

Abstract: A medical waste disposal system includes an assembly for superheating a quantity of untreated medical waste which is partially saturated with water to an internal temperature of at least 275 degrees Fahrenheit for at least thirty minutes. After such superheating the vessel is rotated to cool the same to under 100 degrees Fahrenheit after which the contents are deposited into a matrix of grinding elements having surfaces of different grinding dimensions and capabilities such that the output thereof is unrecognizable as medical waste. Such output is then deposited into a microwave assembly to further disinfect and decontaminate the medical waste. After such treatment the output of the system may be treated in the same fashion as conventional household refuse.

Abstract: A high consistency pulp refiner of the type having a pressurized casing (12) containing opposed grinding discs (14,18) mounted for counter-rotation about a common axis (26) and between which material to be refined is introduced near the axis so as to move generally radially outwardly through an inner refining zone (40) between the discs while producing steam as a result of the refining action. The partially refined material and steam then move through a generally radially outer refining zone (50) between one of the discs (14) and a stationary grinding surface (54) situated generally radially outwardly of the other disc (18), whereupon the refined material and steam are discharged from the casing through a material outlet (62).

Abstract: An agitator mill for treating free-flowing grinding stock comprises a discharge device, which is provided with a separating device to be disposed in the grinding chamber. In the separating device a mixing device is arranged, which comprises a mixing body movable in longitudinal direction of the cylindrical separating device.

Abstract: A process for impact crushing of rock and ore lumps, in which a rock lump is subjected to a primary impact force P.sub.1, and then the plurality of resultant smaller pieces are subjected to a secondary impact force P.sub.2. The application of the impact forces P.sub.1 and P.sub.2 is synchronized in time. The velocity vector V.sub.1 of the lump subjected to the primary impact force P.sub.1 and the vector of the secondary impact force P.sub.2 lie on a line running through the center of the lump mass. The invention also covers an apparatus for performing the above process, which comprises a housing accommodating a primary crushing rotor and a secondary crushing rotor, and also means for synchronizing the rotation of the secondary crushing rotor and the primary crushing rotor, coupled kinematically to said rotors. The secondary crushing rotor has two hammers, and its mass increases along the longitudinal axis of symmetry in a direction away from the axis of rotation.

Abstract: At least one core hole is provided adjacent an edge of a rock crusher component and removably receives a connector capable of attachment to a lifting line. In one embodiment, the connector is a bolt and the core hole has an enlarged portion for receiving a nut in a non-rotating fit. The nut receives a set screw plug when the bolt is removed. In another embodiment a hook and eye member is employed and the hook portion thereof engages the enlarged portion of the core hole. The connector includes a bracket that connects it with a lift line.

Abstract: A bale opening machine is provided with a safety apparatus, by means of which there are produced safety barriers or fences parallel to lengthwise sides of a row of bales to be opened and/or substantially perpendicular to the direction of movement of the bale opening machine. The safety apparatus moves in conjunction with the bale opening machine. The safety apparatus can comprise mechanical and/or sensory protective structure. The sensory protective structure comprises one or more electro-acoustical transducers arranged in a sonic chute together with one or more reference reflectors such that transmitted acoustical signals are split into a measuring signal and a reference signal. The reference signal is reflected at one of the reference reflectors, whereas the measuring signal is reflected at a deflection reflector into the monitored area and back again by an object located in the monitored area.

Abstract: A rotor for an impact crusher which has rotor plates distributed along the length of a rotor shaft and secured to the shaft. Aligned, open, recessed cavities in multiple rotor plates receive a backing bar spanning the plates and the bar is secured to the plates. A removable hammer bar seats in the cavities and rests against the backing bar. Wedges held in place by retainers hook the hammer bar in place.

Abstract: A spring member includes a planar strip of elastic material formed with a plurality of spirally-extending slits at spaced locations to define a plurality of spirally-extending elements integrally formed with the strip. The spirally-extending elements are pressed out of the plane of the strip to produce a plurality of helically-extending springs integrally formed with the strip, each spring decreasing in diameter from the strip to the outer end of the spring. Also described is the use of such spring members in toothbrushes and keyboards. Further described are methods of making such a spring member and making brush heads including such spring members.

Abstract: A process for the production of an alkali dispersion includes charging a mixing vessel with a solid alkali metal, a liquid which is inert to the alkali metal and a grinding media. The vessel is connected to a vibrating driver which is vibrated until the alkali metal is ground by the media finely enough to form a dispersion in the liquid. Preferably the driver is a resonant driver which is vibrated at the resonant frequency of the driver. Mineral oils or other liquids containing organohalides such as PCBs can be used as a liquid which is treated during the grinding by the organohalide reacting with the alkali metal.

Abstract: A pneumatic pulverizer comprises an acceleration pipe for transporting powders under acceleration by a high pressure gas, a pulverization chamber, a collision member for pulverizing the powders ejected from the acceleration pipe by a force of collision, the collision member being provided against the outlet of the acceleration pipe, a raw material powder supply inlet provided on the acceleration pipe, and a secondary air inlet provided between the raw material powder supply inlet and the outlet of the acceleration pipe.

Abstract: An improvement in a bulk stacker/reclaimer of the type comprising a stacker conveyor for stacking bulk material into a pile, a reclaimer conveyor for removing bulk material from the pile and a removing means for transporting reclaimed material away from the stacker/reclaimer to a remote location. The improvement comprises a breaking means, interposed between the reclaimer conveyor and the removing means, to break apart frozen clumps of bulk material. The inflow to the breaking means is in communication with the discharge of the reclaimer conveyor and the outflow of the removing means is in communication with the breaking means.

Abstract: Pavement markers are provided that are equipped with installation tabs which permit marker storage vertically and which permit hand holding of the individual markers during installation. After a marker is installed, each tab is breakable adjacent to the marker upper surface in response to an applied small bending force. The tabs overcome the problem of installing pavement markers upon hot tar.

Abstract: The present invention is directed to a gripping system for holding a supporting ring member adapted to support a manhole cover in a tubular member having a peripheral horizontal shoulder. The gripping system has a plurality of rigid elbow-shaped members internally secured inside the ring member. The elbow-shaped members have a horizontal arm radially extending inside the ring member and a substantially vertical pending arm extending below the ring member and adapted to internally face the tubular member. A screw member is threadedly mounted through the vertical arm in the direction of the tubular member. The screw member is provided with a friction plate fixed at one end between the vertical arm and the tubular member for tightening the friction plate on the tubular member and for frictionally retaining the ring member to the tubular member. The friction force is adapted to vertically fix the ring member relative to the tubular member.

Abstract: An impact attenuator module having an interior domed shell positioned at a selected one of several heights within an annular shell for supporting a selected quantity of dispersable mass at a desired height above the bottom of the module.

Abstract: A field transportable battery disposal unit comprises a storage drum containing a neutralizing fluid and a cutting apparatus adapted to sit on top of the drum, the cutting apparatus including a cutting wheel, a driving apparatus for rotating the cutting wheel, an oscillating apparatus for oscillating the cutting wheel in a "back and forth" motion, slots disposed adjacent the cutting wheel adapted to receive one or more of the exhausted batteries, a water pump for lubricating and cooling the cutting wheel and providing a pre-neutralizing spray of water to the wheel and battery parts, and an air scrubber for neutralizing an acid mist and exhausting the neutralized acid mist, contained within the drum, to the surrounding atmosphere. The battery is inserted into one of the slots in the cutting apparatus, and the cutting wheel cuts the battery into pieces. The water pump sprays water over the cutting wheel and on the battery parts undergoing the cutting operation.

Abstract: The invention is directed to a new method for producing milled grain products such as flour, semolina, middlings, etc., wherein the material is repeatedly ground by means of rolls and sifted with the system of advanced milling. It is suggested that the material be guided again at least twice via double-roll grinding stages with sifting between the double grindings, wherein the material is sifted in each instance following the double grinding. In an especially preferred manner, a corresponding new mill with at least two double-grinding passes is preferably constructed as an 8-roll mechanism (70). In an especially preferred manner. The new mill comprises a combination of eight- (70) and four-roll mechanisms (142, 151). A screening surface which is at least 20 to 50% larger is used for the double grinding.

Abstract: A machine for automatically joining front and back parts of buttons employs a turntable with nests that are rotated through a series of stations at which the parts are placed in the nests in a desired orientation, joined, and checked for defects. Orientation of the parts is achieved by video imaging of a first part as it is randomly placed in a nest, and computer-controlled placement of the second part based on the ascertained position of the first part.

Abstract: A paper material screening and refining apparatus has a tank which receives a paper material to allow the paper material to accumulate therein; a cylindrical screen which divides the space in the tank into a primary chamber and a secondary chamber; a cylindrical rotary member carried by a rotary shaft and disposed so as to oppose to the screen; a rotational member carried by the rotary shaft and disposed near the end of the tank remote from the paper material receiving end of the tank; a water supply pipe for supplying water into the primary chamber from the region near the rotational member; a water supply valve provided in the water supply pipe; a discharge pipe for discharging the paper material in the primary chamber of the tank from a region near the rotational member; and a discharge valve provided in the discharge pipe.