Abstract: In a multi container interlocked food machine having a power base with a bowl-supporting portion and driven shaft extending vertically therefrom, with an upstanding motor-containing housing, a processor bowl having structure locking it on the supporting portion and containing a cutter on the shaft, a lid on the bowl operatively connected to an interlock of an internal lid switch-controlled motor energizing circuit to deenergize said circuit on lid removal, an improved second interlock mechanism is provided comprising a separate smaller diameter blender jar and cutter disposable on the shaft, base securing structure on the jar locks it on the base portion concentric with the bowl locking portion, an internal separate jar switch is connected to the motor circuit in parallel with the lid switch, the base securing structure operatively connecting with the jar switch through a biased slider mechanism, whereby on mounting the jar on the base, the jar switch is closed to "on" position to automatically by-pass the li

Abstract: The moving parts of a tobacco cutting machine and the conveyor or conveyors which transfer tobacco to the cutting machine are driven by a variable speed motor whose speed is regulated in dependency on the volume of tobacco in a duct from which the conveyor or conveyors draw or receive tobacco for transfer into the machine. The height of the pile of tobacco in the duct is monitored by photoelectric cells which transmit signals to a speed regulator for the motor so that the speed of the motor increases and decreases when the height of the pile respectively increases and decreases. The duct receives tobacco from a magazine. Fluctuations of the height of tobacco pile in the duct are due to variations in the rate of tobacco feed from the magazine and/or to changes in size, moisture content and/or temperature of tobacco which is being supplied to the duct.

Abstract: A comminuter for metal turnings and the like has a rotor rotatable on a support about a fixed axis and carrying at least one outer rotor element and at least one inner rotor element which define a cylindrical orbit on rotation of the rotor. A housing surrounds this rotor and is formed by a U-shaped upwardly open portion of non-tapering cross-sectional shape and a flat cover part engageable over the open upper side and openable in order to clear a jam in the machine. Stator elements carried on this housing are spaced slightly from the rotor element so that as the rotor turns turnings and the like fed to the machine will be comminuted and passed from an inlet to an outlet end.

Abstract: The bearings for a rolling mill capable of carrying very large ore loads for grinding reduction therein are provided with an arrangement of a plurality of magnetic flux proximitors mounted in the bearing pads, to provide a readout of oil film thickness between the pads and the journal surface supported thereby. The arrangement permits achieving accurate alignment of the mill bearings in operation, and the control of operating conditions by maintaining the load bearing capacity within pre-set acceptable limits for the respective bearing.

Abstract: A grinding mill of the kind comprising a generally cylindrical grinding chamber defined by a screen having a shaft supporting a plurality of grinding hammers rotatable therein and being enclosed in a chamber to which suction is applied characterized by the provision of instrumentality for sensing the pressure within the enclosure surrounding the screen and actuating a safety device in the event that the pressure falls below a pre-determined value.

Abstract: A method and apparatus for detecting predetermined operating conditions of a machine driven by an electric motor, in which a filtered electric signal is utilized. The filter is designed to signal the occurrence of frequencies within a predetermined band, thereby enabling detection of an event characterized by the occurrence of such frequencies. The output of the filter can be used, for example, in a further device to operate an alarm, turn off the motor, reduce the feed to the machine, or any other suitable control action.

Abstract: Apparatus for sequentially compacting a plurality of containers includes first and second plates each juxtaposed with respect to the other and having respective compacting surfaces, one of the plates being operated by a cam for effecting the reciprocal operation toward and away from the other plate so as to crush containers between the two compacting surfaces. A magazine is provided above the compacting plates for feeding the containers into the space therebetween, the magazine being pivoted above the plates such that downward rotation of the magazine occurs responsive to the weight of a predetermined number of the containers to operate a switch which energizes the cam mechanism.

Abstract: In an electrically operable household appliance of the kind in which a detachable accessory, such as a vegetable cutter, is seated on the top of a base and includes a casing which contains working elements adapted to be coupled to the output shaft of an electric motor which is housed in the base and is controlled by a switch which is operable by a key situated in the top part of the base and is actuated by a push-button mounted on the accessory, the casing of the accessory is fixed to the base by at least one fastener comprising a hook which is articulated on the casing and has a hook portion arranged to come into engagement with the base, and the push-button is mounted on the hook.

Abstract: A Comminution Device in which the comminution structure has its upper portion enclosed during operation within a movable cover which cover controls the actuation of the flywheel to prevent rotation of the flywheel when opening the cover is initiated.

Abstract: Method and apparatus for conveying and disintegrating refuse and the like comprising a plurality of mutually cooperating, rotatable feed screws arranged in a common feeding-in chamber. The direction of rotation of at least one of said screws is intermittently reversed relative to at least one other of said screws according to a predetermined program for temporarily feeding part of said refuse backwards.

Abstract: A rotary shredder for waste materials has a pair of counterrotating cutting shafts, each of which mounts a series of spaced-apart disc-type cutters. The cutters on one shaft extend into the spaces between cutters on the other shaft so that the cutters on the two shafts coact to shred material fed therebetween. The two shafts are driven by a reversible radial piston hydraulic motor through a gear train arranged to rotate one cutter shaft at twice the speed of the other. The hydraulic motor is driven by an electric motor-driven fixed or variable displacement pump. A flow-reversing valve in the hydraulic motor control circuit controls the direction of fluid flow through the hydraulic motor. The reversing valve is electrically actuated automatically by a fluid pressure-operated switch to reverse flow and the direction of rotation of the cutters to prevent jamming whenever fluid pressure in the motor circuit rises to an abnormally high level.

Abstract: A waste disposal device includes a receptacle for holding liquid and waste materials, a liquid drainline secured to the receptacle, a collecting tank connected in the drainline to collect the liquid and waste materials from the receptacle, a waste disintegrator extending into the collecting tank, drive means for operating the waste disintegrator, and control means in the drainline for actuating the drive means upon collection of liquid over a given level in the collecting tank and upon the flow of the liquid out of the tank through the drainline. The waste disintegrator is a rotatable impact knife, the drive means is a motor coupled to the knife, and the control means includes a siphon tube directing the flow of the liquid over a given level out of the tank, and pressure sensitive switching means for sensing a change in pressure in the siphon tube upon the occurrence of the flow of liquid to actuate the motor.

Abstract: An apparatus for monitoring the output of a fiber cutter arranged to cut long fiber roving strands into short clippings and to feed the clippings into a slurry-containing mixer, the monitoring apparatus having a plurality of rotatably mounted assemblies each comprising a rotating shaft and a plurality of arms mounted thereon. During normal operation the fiber clippings fall through the moving arms and into an apparatus wherein the fibers are mixed into a slurry, such as a calcined gypsum slurry. Malfunction of the cutting apparatus resulting in the discharge of long fiber strands causes entanglement of the fiber strands with the moving arms, thereby causing rotation of the assemblies to discontinue and actuating an alarm and automatic switches, thereby rendering the entire apparatus inoperative and preventing serious entanglement of the mixing and conveying apparatus which could result in long shut-down periods.

Abstract: An electrical apparatus and method for producing pulsating high torque rotational vibration movement combined with a slow superimposed unidirectional rotary motion is disclosed. The apparatus includes an alternating current motor combined in a mechanically resonatable system with electrical apparatus producing a non-alternating component of magnetic flux in the motor structure. The torque generating ability of the motor is increased approximately five-fold even though the motor is operated from the same supply voltage. The disclosed apparatus is illustrated connected to a waste disposer device.

Abstract: A sewage grinder pump and access manway assemblage comprising a lower collection tank having a watertight and airtight cover and at least one sewage grinder pump unit suspended from a top cover plate for the collection tank and extending into the tank for grinding and pumping under pressure sewage collected in the tank. An integral manway housing member fabricated from fiberglass or other similar non-corrosive material is mounted over the collection tank and has enough enclosed space to accommodate a workman. The bottom cross-sectional dimensions of the manway housing member are slightly less than the cross-sectional dimensions of the collection tank. The collection tank has an upper peripheral wall section which coacts with a corresponding lower peripheral wall section of the manway housing member for securing the manway housing member and the collection tank together in a substantially airtight and watertight manner.

Abstract: A coffee mill comprising a vertical screw of generally cylindrical form, provided with at least one helical groove and mounted to cooperate with a truncated conical crushing chamber having a section decreasing towards a cylindrical bore at the lower end of the chamber, which section serves to guide the lower part of the said screw, said groove having a pitch which decreases progressively towards its lower end, and a depth which decreases progressively towards its lower end.

Abstract: Apparatus for crushing swarf and like materials in which the material to be crushed is received in a supply hopper which includes sensing switch means responsive to material in the hopper reaching a selective level for enabling a control circuit which controls operation of the crusher.

Abstract: For grating cheese for commercial purposes, a motor driven disk having grating surfaces is provided. A semi-cylindrical trough is aligned below the axis of rotation of the disk. A top is hinged to a housing for the motor and has a guard for the upper half of the disk and a cover for the trough. Within the trough is a pusher which pushes a block of cheese against the lower half of the disk. A motor advances the pusher through a rack-and-pinion drive. The top has a latch which engages the pinion to cause it to engage the rack when the top is down. Safety means are provided to stop the motors when the pusher is close to the disk. A further safety feature permits the motors to start only when the top is closed.

Abstract: An apparatus for comminuting bulky objects, especially vehicle tires and parts of automobile bodies, comprises two parallel shafts arranged for rotation in opposite directions and at different speeds, each shaft being driven by a separate hydraulic motor and provided with comminuting rings alternately axially staggered with respect to one another on each of the shafts. The rings are provided with means including sharp, pointed portions for seizing and comminuting the objects while conveying them through interstices defined between adjacent rings on the shafts and by smooth portions of the shafts themselves. The shafts comprise a number of alternately disposed grooved bearing surfaces and smooth surfaces constituting the smooth portions. The rings are formed of a number of ring-elements, each in the shape of a sector of an annulus and having a grooved, concave, cylindrical inner surface engaged with a portion of a grooved bearing surface.

Abstract: The preferred embodiment of the invention disclosed herein includes a motor operatively connected to drive a rotatable drum assembly including cutting means rotatable through a cutting station where brush and similar debris is cut into small chips. Adjacent the cutting station is a feed station from which the brush may be hand-fed to the cutting station and at the feed station is actuating means operative to actuate emergency shutoff means and emergency brake means, the former being operative to shut off the motor and the latter being operative to stop the rotation of the drum assembly. Preferably, the emergency brake means includes a band member including a brake lining located about the periphery of a portion of the drum assembly and having spaced apart end portions. One end portion of the band member is fixed to a frame and the other end portion is spring biased away from the drum assembly so that the brake lining is normally not engaged with the adjacent periphery of the drum assembly.

Abstract: High pressure sandmill operation is obtained by balancing the pressure within the vessel on one side of a rotor shaft seal with a higher pressure on the other side of the seal. Pressure switches are employed to sense the pressure within the vessel, the seal housing, and the cooling water jacket surrounding the vessel. The switches are connected in electrical control circuits to deenergize the product pump whenever the sensed pressures are beyond predetermined acceptable ranges. The control circuits also energize lights which indicate which pressure was out of its range and energize a light indicating that the pump motor is deenergized. The control circuit further includes means responsive to the temperature of the product being pumped to the vessel so that an audible warning signal is generated if the temperature exceeds a predetermined level.

Abstract: Apparatus for crushing swarf and like materials having a circuit for controlling the operation thereof which provides for operating the crusher for selected time durations in order to insure processing of a load of material, and including means for temporarily interrupting the operating cycle in response to any of a plurality of abnormal conditions and for shutting down the crusher if the abnormal conditions are not corrected within a predetermined time interval.