Abstract: A sewage grinder pump system for use in moving sewage, having a vertically oriented cylindrical pump motor housing, a bottom plate affixed to and closing the pump motor housing, a motor supported by the bottom plate within the pump motor housing, the motor having a shaft extending through an opening in the bottom plate, a grinder pump supported to a lower end of the bottom plate and connected to the motor shaft, a closure member affixed to the pump motor housing top end and having a level detector receiving portion providing a liquid level detector opening therein externally of the pump motor housing, an elongated liquid level detector having an upper end received within the liquid level detector opening, and a circuit connecting the liquid level detector to control the motor to thereby drive the grinder pump in response to detected liquid level.

Abstract: A device 10 for crushing medicaments originally formed in pill of tablet contour into a fine powder. An impact device 140 moves from a first energy stored position latched thereagainst spring pressure awaiting tripping of the latch or cam 190 by the pill which has been ensconced in a container embodied as an envelope 260. The envelope 260 is placed in a slot 84 and oriented to trigger a switch 234 which releases from a captive position the hammer 142. The hammer 142 advances linearly impacting against an anvil 89 upon which the envelope 260 and the enclosed pill awaits. The explosive force of the hammer 142 creates a powder substance because of the explosive nature of the hammer's 142 contact against the anvil 89. While the hammer 142 is being withdrawn under motor drive 212, the envelope 260 may be removed for access to the interior contents for subsequent dispensation.

Abstract: Residues from fibermat materials are broken down and separated into wood fibers and other fibers so that the fibers may be recycled. If the fibermat residues are not recycled, they present a disposal problem due to the uncured resins that become toxic waste. The fibermat residues are cut and separated by rotating cutting heads within a cutting and separating chamber. The wood fibers, being the heavier fibers, settle out, pass through a screen into a collection chamber and the lighter textile fibers are sucked out of the cutting and separating chamber with a vacuum system.

Abstract: A coffee grinding apparatus which includes a coffee bean grinding mechanism and a weighing device associated with the grinding mechanism to weigh ground coffee. A receptacle is associated with the weighing device and positioned below the grinding mechanism for receiving ground coffee from the grinding mechanism. The weighing device generates an actual weight signal corresponding to the weight of the ground coffee dispensed into the receptacle. A selecting device is provided to allow a user to select a weight of ground coffee to be produced by the apparatus. A dispensing assembly may be associated with a whole bean hopper, the selecting device and weighing device are coupled to a control circuit which controls the grinding apparatus. The control circuit operates the dispensing assembly and/or the grinding mechanism as a function of a comparison of the actual weight signal and the selected weight signal.

Abstract: The load on a refiner motor is controlled by adjusting the motor load setpoint by monitoring load applied by the refiner and the plate gap between the refiner plates to define the curve of the load versus plate gap relationship. This slope of load versus plate gap relationship is estimated and when the sign of the slope of the curve changes sign indicating operation in an unstable zone of pad collapse and based on the tendency for the refiner to be in the unstable operation zone over a selected period of time exceeding a preset limit adjusting the setpoint lower to approach more closely the maximum load applied over the selected time.

Abstract: An apparatus for preparing hypodermic needle having a needle shaft with a pointed end and a hub end and having a needle hub joined to the hub end for safe disposal of the hypodermic needle includes a metal grinder assembly including a grinding member having a grinding surface and a mechanism for moving the grinding member, and a needle guide structure for holding the needle shaft adjacent to the grinding member and the pointed end oriented substantially toward the grinding surface, for guiding the needle shaft toward and against the grinding surface to progressively grind the needle shaft into very fine particles. The mechanism for moving the grinding member preferably includes an electric motor. The apparatus preferably additionally includes a housing enclosing the grinding member, having a housing wall.

Abstract: The invention proposes a novel automatic product feed in which an analog signal is formed and at least one other digital signal which is adjustable independently of the analog signal is generated and used for the automatic product feed for supervising the product feed functions by a mechanical probe (8) in the product flow. In this way, all previously known controlling and regulating functions can be realized with a minimum of electronics or at the highest level of computer control as a function of the product feed or for optimizing the grinding conditions, possibly with externally initiated digital signals for various stage adjustments and with the use of very simple automatic component means. The invention further proposes a corresponding method for grinding with a milling roller mill (1).

Abstract: A method of sorting plastic items by measuring the effect an item has on light directed at a stream of items from a light source, then selectively removing items from the stream based on a comparison of the light measured and the light emitted from the detector is provided. The invention also includes an apparatus for separating plastic items which comprises a light source, a detector for measuring the effect an individual item has on light emitted from the detector, and sortation means for selectively removing items from the stream based on a comparison of the light emitted by the light source and that measured at the detector. A method for separating single plastic bottles from engaged interlocked bottle clusters comprising directing an air jet at an item sufficiently forceful to displace a single bottle to a collection means but insufficiently forceful to displace an interlocked bottle cluster is also provided.

Abstract: A device for reducing paper, in particular valuable papers, such as bank notes, said device being provided with a reducing device as well as with a conveyor belt for supplying the paper to the reducing device, whereby the at least substantially horizontally extending conveyor belt is supported by a cabinet-like frame, which accommodates the reducing device, which is at least largely positioned under said conveyor belt. The discharge end of the conveyor belt is positioned above an opening provided in an upper wall of the cabinet-like frame, under which said reducing device is positioned.

Abstract: An integral, readily installed, universal pump assembly has an integral, liquid-tight outer housing for supporting within a single liquid-tight containment vessel an electric motor driven pump, and discharging liquid from a discharge outlet of the pump. The assembly includes at least one normal high and low liquid level sensing control pneumatic pressure operated electric switch supported within the housing for deriving on-off switching control signals for controlling normal on-off operation of the pump. At least one liquid level sensing diving bell is supported on the housing and has at least one lower open end exposed to the liquid in the collection tank for deriving varying pressure pneumatic liquid level indicating signals for application to the pressure operated switch for deriving the on-off control signal.

Abstract: A paper shredder includes a lower cabinet and an upper hood for covering the cutting rollers, The hood has a supply duct for material to be cut which conically narrows toward the cutting roller intake gap, The supply duct has an inlet opening whose upper edge in vertical projection is located laterally offset relative to the cutting roller intake gap, The supply duct for the material to be cut has a funnel-shaped cross section and a bottom side of the supply duct extends initially approximately horizontally and is then arc shaped and leads into the essentially vertically directed cutting roller intake gap.

Abstract: A cutting assembly for cutting propellant from a rocket motor. The cutting assembly includes a plurality of first cutting wheels, second cutting wheels and secondary cutters which are mounted to a mounting head. The mounting head is attached to an arm for rotation about an axis of rotation. Means are provided for rotating the mounting head. The cutting wheels are mounted to the mounting head for rotation about an axis of rotation transverse to the axis of rotation of the mounting head. Each cutting wheel includes a plurality of cutting blades extending outwardly from the rim. The cutting blades are each configured with a radially extending cutting edge for cutting in a direction substantially normal to the axis of rotation of the mounting head.

Abstract: The invention presents an easily carried out method for functional monitoring of mechanical paper shredders. The actual slow-down behavior of the cutter blocks is determined and compared with the slow-down behavior of well-functioning cutter blocks. Deviations in slow-down behavior indicate a functional impairment of the currently utilized cutter blocks. Measures are taken to eliminate the functional impairment in accordance with the degree of deviation.

Abstract: Impact mill comprising a housing (1) wherein a drivable centrifugal rotor (3) rotatable about a rotational axis (8) and an impact body (7) enclosing this centrifugal rotor are provided. At least one sensor (11, 111, 211, 311, 411) is assigned to the impact ring (7), which sensor functions during the operation of the mill and which is designed for detecting at least the operational efficiency, preferably also for determining the extent of the wear of the impact ring (7). The sensor (11) senses the impact body (7) through an opening (12) in its annular or cylindrically-shaped housing (13).

Abstract: Material reducing apparatus having a drive arrangement for a pair of shafts carrying double edge cutter discs, motor driven transmissions for each shaft having different speed characteristics for reducing motor speeds to double digit speeds, bearings mounted in pillow blocks so that the pillow blocks can be opened to allow removal of the bearings so the shafts carrying the double edge cutters can be repositioned to present the cutters selectively to reduce material with either edge of the double edge cutters. The drive arrangement is also duplicated at the opposite ends of the pair of shafts for selective connection to drive the shafts either by one of the drive arrangements or by the duplicate drive arrangement.

Abstract: A refuse disposal and recycling apparatus for use with a high rise building having a refuse chute, the apparatus including a carousel holding a plurality of refuse bins thereon, including a deposit position directly beneath the open, lower end of the chute, the carousel including a top plate on which the bins are positioned; a rotatable drive assembly for rotatably driving the carousel; an input conveyor for conveying empty refuse bins, onto the carousel; an output conveyor for conveying filled refuse bins from the carousel; a bin level sensor for sensing when a bin is filled to a predetermined level; a timer for setting predetermined time periods; a rotational position sensor for determining a position of the carousel; a control circuit for controlling the rotatable drive to rotate the carousel so as to move an empty bin to the deposit position at the predetermined time periods and when a bin at the deposit position is filled to the predetermined level; and a deflection wall positioned above the top plate fo

Abstract: A coffee grinding apparatus which includes a coffee bean grinding mechanism and a weighing device associated with the grinding mechanism to weigh ground coffee. A receptacle is associated with the weighing device and positioned below the grinding mechanism for receiving ground coffee from the grinding mechanism. The weighing device generates an actual weight signal corresponding to the weight of the ground coffee dispensed into the receptacle. A selecting device is provided to allow a user to select a weight of ground coffee to be produced by the apparatus. A dispensing assembly may be associated with a whole bean hopper, the selecting device and weighing device are coupled to a control circuit which controls the grinding apparatus. The control circuit operates the dispensing assembly and/or the grinding mechanism as a function of a comparison of the actual weight signal and the selected weight signal.

Abstract: The present invention provides a roller mill control method capable of automatically controlling a roller mill which is comparatively difficult to operate for operation in an optimum operating condition, and a roller mill controller for carrying out the roller mill control method. The roller mill controller stores beforehand a roller mill characteristic model representing the relation between changes in the values of the operating condition variables detected by a detecting unit (2) and operating parameters, restrictions on the values of the operating condition variables and the operating parameters, an index of performance for evaluating the values of the operating condition variables and the operating parameters.

Abstract: An arrangement in connection with the retail sales of coffee or similar, comprising a grinder and a supply chamber for conveying coffee beans or similar to the grinder. To enable versatile and environmentally friendly distribution, the arrangement comprises at least one storage chamber for coffee beans or similar, means for conveying coffee beans or similar from the storage chamber to a supply chamber, and equipment for controlling the grinder to grind a predetermined quantity of coffee or similar.

Abstract: A method is described for controlling the grinding of a dispersion of solid particles in a doughy-pasty mass, such as a chocolate mass, on a roller mill line having at least one preceding and one postponed roller mill (1 or 4), of which at east the postponed roller mill (4) is a roll refiner mill with a plurality of rollers (W1-W5). In this arrangement, the outlet roller gap of the preceding roller mill (1) is changed for decreasing or increasing the layer thickness of the mass in the postponed roller mill (4) having at least three rollers. Additionally and besides changing the outlet roller gap of the preceding roller mill (1) a control of the layer thickness of the postponed roller mill (4) is carried out according to a proportional-integral-differential control system.

Abstract: A multipurpose electric food mixing appliance specially adapted to mix and knead bread dough in combination with a blender device utilizes one power source to drive both the blender and the mixer. The appliance can sense when dough is properly kneaded and automatically shut itself off. A special dough hook/stator arrangement reduces drag on the motor and an upwardly extending cover maximizes the effective volume of the mixing receptacle. A special blender blade configuration increases the effectiveness of the blender.

Abstract: The invention proposes a novel automatic product feed in which an analog signal is formed and at least one other digital signal which is adjustable independently of the analog signal is generated and used for the automatic product feed for supervising the product feed functions by a mechanical probe (8) in the product flow. In this way, all previously known controlling and regulating functions can be realized with a minimum of electronics or at the highest level of computer control as a function of the product feed or for optimizing the grinding conditions, possibly with externally initiated digital signals for various stage adjustments and with the use of very simple automatic component means. The invention further proposes a corresponding method for grinding with a milling roller mill (1).

Abstract: A can compactor includes an electric motor connected to drive a chain which, in turn, drives a pair of crushing belts arranged in opposing fashion to form a V. One of the belts is driven clockwise while the other belt is driven counterclockwise. Cans to be crushed are placed through a guide in an open area at the top of the two belts, where they break a light beam, triggering a photo-sensitive switch, which starts the motor. A normally closed limit switch is placed in close proximity to the chain drive, and a special link on the chain is positioned to engage the limit switch to open the normally closed switch, and thus stop the motor after a single revolution of the chain. This is sufficient time for the crusher belts to thoroughly flatten the can. Can gripping lugs on at least one of the belts assure that the cans are positively fed through the mechanism and out the bottom of the V.

Abstract: A machine, such as a plough, is driven with a chain back and forth along a guide to strip mineral from a mineral face. The chain is entrained around chain wheels at ends of the guide and the chain wheels are driven by electric motors and gearing assemblies. Each gearing assembly employs an overload protection which generates a signal in the event of an overload. A control unit with a computer responds to the overload signal to provide a stop signal to actuate a clutch to disconnected the drive. Stops are provided at the ends of the guide and spaced from each stop there is a sensor which provides a signal indicative of the presence of the machine. The control unit responds to the detection signal and provides the stop signal at an optimum time calculated by the computer to ensure the machine is halted at or near each end stop.

Abstract: A motor-driven drive shaft is coupled to a grinding mill or other unbalanced rotatable member through a clutch arranged to accommodate misalignment, the clutch being so controlled during start-up as to be initially engaged to effect a first limited rotation of the mill in the drive direction, then disengaged to permit the mill to rotate under its own weight through a second rotation in the direction reverse to the drive direction and through a third rotation in the drive direction, and then to be re-engaged during the second rotation of the member in the drive direction. Clutch orbiting is thus reduced if not eliminated.

Abstract: An improved sugar cane juice extractor has removable crushing rollers. The juice extractor preferably includes a housing with a juice extracting compartment and a closure for accessing the compartment. The closure is preferably a clear plate which permits viewing of the compartment during operation and, when removed, allows access to the compartment for removal of the crushing rollers and cleaning of the rollers and the compartment. A safety switch can be provided to prevent rotation of the rollers when the closure is displaced. A guide into the compartment is preferably provided to direct the sugar cane and any flavorings into the crushing rollers. A waste channel is provided for the exit of crushed cane pulp.

Abstract: A paper shredder has cutting discs that are protected by detecting the approach of a metal object. When the object is detected, the motor that drives the discs is deenergized and a brake is applied to stop the cutting discs.

Abstract: The invention relates to an apparatus and a method for direct addition of solid ferrocene to fuels. The liquid addition or fortification of fuels with ferrocene is known. The new apparatus and the new method enable an addition of solid ferrocene to fuels. The apparatus according to the present invention comprises a grinder being connected to a fuel conduit or a fuel tank, said grinder being filled with solid ferrocene. The apparatus further comprises a step motor being coupled to the grinder and includes a control means for said step motor. With respect to the method of the present invention it is proposed to measure the amount of fuel flowing through a fuel conduit, to determine the required amount of ferrocene therefrom and to add the so determined amount of ferrocene to the amount of fuel by actuating the grinder at the corresponding number of revolutions.

Abstract: A shredder including a shredder housing having an inside, an outside, side walls, end walls, such that the end walls and side walls are engineered and joined together to maintain tight tolerance within the shredder. The end walls and side walls define a top inlet opening and a bottom outlet opening. Two parallel spaced apart shafts are horizontally aligned with each other and rotationally mounted through the end walls for receiving rotational power. Adjustable speed rotational motors engage each of the shafts for rotating them in counter-rotational directions. A plurality of uniform thickness disk-shaped blades are alternatingly positioned with interposed disk-shaped spacers placed therebetween. The spacers have a thickness slightly thicker than the blades.

Abstract: A rotor shearing type crusher for crushing municipal waste and industrial waste whether it is bulky or not. If any foreign material, which is impossible to crush, is mixed with the municipal waste or industrial waste, the foreign material is promptly discriminated and discharged separately. The crusher includes a casing, a feed plate and a cutter respectively rotatably mounted to the casing obliquely above two rotatable knives. The inclination of the feed plate and cutter can be changed freely. Cutouts rae provided on the top end of the feed plate and cutter in a comb-like manner to dodge cutting edges of the rotatable knives intersecting each other. A discharge port is divided into two sections. The crusher of such a construction performs a function of tearing off soft waste twining itself around the rotatable knives. Rigid material impossible to be crushed is separately discharged. Even dangerous small waste such as cartridges, cylinders, etc. can be crushed and degassed inside without fail.

Abstract: The invention relates to an air flow rolling mill for comminuting hard minerals such as slag or cement clinker. The discontinuities in operation occurring with high fineness levels are overcome in that with the grinding rollers are associated compression rollers for making the grinding bed uniform.

Abstract: A document shredder (11) has a cutting mechanism (13), which is driven via a gear (25) by an electric motor (26). In the return movement a diode (30) is connected in, which reduces the voltage supplied to the motor and therefore its maximum torque.This avoids material being jammed on the top of the cutting mechanism during the return movement in such a way that the cutting mechanism cannot be rotated again during the following forward movement.

Abstract: For use with coffee bean grinders, a safety switch is actuated by a pivot arm having a pivot point located below a contact area at which a removeable container engages the pivot arm. The pivot arm pivots about the pivot point on a substantially horizontal axis between a forward and a retracted position. Also, the contact area is disposed forwardly of a vertical plane containing the pivot point and the horizontal axis. This construction reduces the amount of force necessary to move the pivot arm and actuate the switch. Because this force is smaller than before, this safety switch can be used with thin-walled containers, like plastic bags, without compromising the proper operation or safety of the grinder.

Abstract: A household compactor and separator utilizes linear motion in crushing glass and metal refuse for comminution and separation. A crushing element disposed on a worm shaft crushes refuse against a steel grate, broken glass falling therethrough into a glass receptacle. Crushed metal cans fall into a metal receptacle when the grate is released to swing downwardly. The grate is restored to its original position by pulling control lines via a handle, and the grate is secured by solenoid operated latches. The worm shaft is driven by an electric motor operating through a gear box. The compactor is housed in an enclosure having upper and lower doors and pushbutton controls located in the front. Refuse is inserted through the upper door into a compaction chamber. The glass and metal receptacles are removed through the lower door for emptying. Safety switches sense door, grate, and crushing element positions, inhibiting operation if an unsafe condition is sensed.

Abstract: To improve the process control in a method and a corresponding device for regulating the rotational speed of agitator ball mills which have a grinding chamber with grinding balls contained therein, a rotatably mounted agitator body arranged in the grinding chamber and a drive for the agitator body, the rotational speed n of the agitator body being measured, the torque M of the agitator body is measured and the rotational speed n is so regulated that the rotational speed n, the torque M or the mechanical agitating capacity P satisfy desired values predetermined according to the relationP=2.pi..multidot.n.multidot.M(.pi.=3.141 . . .).

Abstract: A lamp crusher housing is mounted on the removable cover of a replaceable waste container to discharge crushed lamps into the waste container through an opening in the cover. An elongate, plastic sleeve is removably and sealingly secured at one end over the upper end of the waste container, and at its opposite end around the outlet of the housing from which crushed lamp particles are discharged. The sleeve has an excess portion folded into the waste container so that when the cover is lifted from the container opposite ends of the sleeve bag remained sealingly connected to the waste container and housing outlet so that no toxic gases are allowed accidentally to escape into their surrounding atmosphere. The apparatus includes a replaceable filter cartridge for filtering out mercury vapors, and the like. Each cartridge contains a fuse which is connected in the circuit that controls the motor that drives the lamp crusher.

Abstract: A material feeding and measuring device includes a housing defining an interior cavity or bin and having a plurality of agitators and an auger rotatably mounted therein. The agitators are arranged as a first upper row and take the form of a plurality of rotatably mounted rods extending across the bin. Each of the rods includes a plurality of tines extending radially outwardly. A lower level of agitators, having the same form, are provided adjacent the bottom of the bin. An auger is rotatably mounted near the bottom center of the bin. The auger extends a slight distance out of the bin into an exit flange which surrounds the periphery of the auger. A blower and conduit are arranged to cause an airstream to flow across the end of the exit flange to entrain the material in the airstream for conveyance. The entire housing is mounted upon load cells which are operatively connected to an electronic control device.

Abstract: The present invention provides an apparatus to strip material from material cores. The apparatus of the invention comprises a frame; a belt attached to the frame; means for rotationally driving the belt; and means for biasing material to be stripped against the belt. According to the invention, the belt is an endless conveying belt, driven by a motor, gear box controlled with an A/C variable frequency drive. The material being stripped is biased against the belt by a plurality of positioning members rotatably attached to the frame. The positioning members are spaced at intervals along the length of the conveying belt such that the distance between ecah positioning member is greater than the diameter of the expiring material core being stripped. Each positioning member and the rotating belt meet to create a nip. An expiring core is placed on the rotating conveying belt and the leasing edge of the material is self-threaded into the nip.

Abstract: A coffee grinder mount assembly for mounting a coffee grinder to a housing by a support member. The assembly located adjacent a coffee bean storage bin for receiving coffee beans therefrom for grinding. The assembly having a mounting bracket for supporting the coffee grinder and fixedly attaching it to the housing. The mounting bracket including a sliding mechanism for moving the coffee grinder between an operating position where the coffee grinder may be operated to grind coffee or like food product suitable for brewing, and a servicing position where the coffee grinder is disposed remote from the storage bin. The coffee grinder being movable with the sliding mechanism in a linear direction away from the operating position and then pivotable with the sliding mechanism to the servicing position.

Abstract: A digital control system for a coffee bean grinder, particularly one with a dual hopper, which is conveniently programmable and automatically operable for selecting bean type and grinding with a high degree of accuracy bean quantities ranging from a few ounces (e.g., 3 ounces or less) for brewing a few cups of coffee, to large quantities (e.g., 2 pounds or more) for brewing several gallons of coffee. The invention may be confined entirely to a grinder, or may be incorporated in a brewing system consisting of a brewer and one or more grinder. The invention allows one grinder to accommodate one or more coffee grinders either of the same type or of different types (i.e., a brewer for making multi-cup quantities or urns for making gallon quantities).

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 piston-and-cylinder retarder delays the switch opening of a switch actuated by a sensor in the path of paper introduced through the paper-feed shaft or chute of a paper shredder, thereby eliminating the need for more expensive and complex electronic time-delay systems to ensure that the shredding unit remains switched on until the trailing edge of the paper passes it.

Abstract: An ice crushing apparatus for use in combination with an ice making machine which has an ice storage bin. The ice crusher includes a plurality of rotatable blades which are mounted on a motor-driven shaft and which pass, preferably in sequence, through slots in a grate, for crushing the ice in an ice crushing zone. A mechanism is provided for bypassing the ice crusher and dropping ice directly from the ice maker to the ice storage bin. A mechanism is also provided for moving the grate to change the size of crushed ice particles. In one embodiment, a device is provided for breaking apart large sheets or other chunks of ice before they reach the ice crushing zone. An electronic control system provides ice crusher operation only when ice is harvested in the ice making machine.

Abstract: The present invention is directed toward an apparatus for compressing plastic waste for the purposes of minimizing space, maximizing manageability and otherise improving the logistics of household recycling. The claimed invention is an electrically powered machine that rotates a plurality of converging, tapered cylinders. Each cylinder has chisel pointed teeth arranged in a helical pattern along the surface of each cylinder. Once a piece of plastic material is placed between the cylinders, the motor is turned on. The cylinders all rotate in the same direction. The pointed teeth on the cylinders grab the plastic material, forcing it deeper between the converging cylinders. The rotation of the cylinder, with the protruding teeth, cause the plastic material to twist as it is pulled downward. Eventually, the plastic material is passed through the bottom of the converging cylinders, wherein the plastic material is oriented in a tightly compressed and twisted cylindrical form.

Abstract: A device for skiving and roller burnishing a workpiece (6) including a cutter (8) and a chip crusher (14) for crushing strings of chips (10). The crusher is positioned beneath the cutter such that low pressure coolant directs the chips from the end (12) of the workpiece and cutter directly into the crusher. The crusher includes rolls (26, 28) having a plurality of teeth (30) for pulling the strings of chips through the crusher.

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: A system for discriminating radiation-contaminated fragments on the basis of a predetermined radioactive concentration includes a detection device for detecting the radiation of the fragments, the detection device having a generally vertically-extending path of transfer of the fragments, at least one radiation detector disposed at one of the inside and outside of asid transfer path, and a transfer device for sequentially transferring the fragments in the transfer path; a convey device for conveying the fragments to said detection device; and a controller for determining the radioactive concentration of the fragments in accordance with the radiation detected by the detection device and for judging whether or not the radioactive concentration of the fragments is the predetermined radioactive concentration. The controller is also operable to control the transfer device so as to adjust the speed of transfer of the fragments in the transfer path.

Abstract: An electric kitchen appliance with mulitiple functions for treating foodstuffs comprises a casing (1,1') of which a base (2, 2') is adapted to receive various accessories comprising a bowl (3) provided with a cover (4) and a tool (5, 6, 8), and an electrical control device for the current supply of the motor comprising a detector for the presence of the cover on the bowl and a speed changer for the motor. The electric control device of the motor comprises also a detector of the presence of the bowl on the base, as well as structure for the identification of the covers which are associated with the detector for the presence of the cover on the bowl and which are adapted to control the speed changer so as to match to each cover an appropriate speed of the tool (5, 6, 8).

Abstract: A portable device for pulverizing pills, tablets and the like to form a minute substantially uniform powder therefrom. The device includes a cam-driven spring biased ram which reciprocates once on a vertical axis into and out of engagement with a pill disposed therebeneath with sufficient localized force to pulverize the pill. A microswitch interrupts power to the device until it senses that the pill is correctly disposed axially beneath the ram.

Abstract: A medical waste disposal system is provided for disposing of biologically contaminated waste material situated inside a rigid, form-stable container. The disposal system includes a processing unit for shredding the waste material into a shredded mass and for transporting the shredded mass into a disintegrator. The disintegrator mixes the shredded mass with a liquid disinfectant solution to disinfect the shredded mass and disintegrates the shredded mass into an unrecognizable particulate waste material.