Abstract: A cavitator comprising a cavitator plate mounted within a container is vibrated by an oscillator comprising a mechanically rotatable eccentric body to provide low frequency high power vibration. A mechanical linkage between the oscillator and the cavitator plate is tuned so that the frequency of oscillation matches the natural frequency of vibration of the linkage. The tuning can be achieved by modifying the length of the linkage or by choosing the necessary properties of the linkage or by varying the frequency of vibration of the oscillator. Various possible linkages include a pipe formed in sections, an elongated beam supported at its nodes, an annular pipe, and a pipe arrangement with overlapping section. The arrangement is of particular advantage when used with complex cavitator plates including vanes, paddles or rods or when using a cage grinder incorporating a plurality of balls for acting upon the material.

Abstract: Two flyweight shafts 12,22 are coupled by means of gears 18,30 each attached to one flyweight shaft 12,22 and two intermediate gears 54,56 each engaging one of these gears 18,30 and mesh with each other. Each of the intermediate gears 54, 56 is mounted on one of the oscillating cranks 32, 34 pivotably mounted on the associated flyweight shaft 12 and 22, respectively. The oscillating cranks 32 and 34 are held parallel to each other and can be pivoted to effect a relative phase displacement of the flyweight shafts 12, 22. The oscillating cranks 32,34 are provided with counterweights 62,64 and are thereby mass balanced to prevent oscillations from becoming effective on the oscillating cranks 32,34 and thus on the adjusting mechanism 60 during vibratory operation due to intertial forces.

Abstract: A vibratory container for flocculating waste water obtained upon vibratory abrasive finishing or the like, having an outlet and a feed connection which continues into a feed channel which extends into the inside of the container and is arranged in siphon-like manner with respect to the outlet pipe. For improved treatment of even chemically complex working liquids, the inside of the container is subdivided by partition walls into a plurality of chambers arranged one downstream of the other in the direction of flow. Connections are associated with the first two chambers arranged downstream of the feed channel within the initial region of the flow. The connections serve to introduce flocculation preparation chemicals, while a final connection is provided for the addition of the flocculating agent.

Abstract: This invention pertains to unidirectional vibration apparatus using resilient shock absorber mounting means to change multidirectional vibration into unidirectional vibration forces. Two embodiments are directed to a motor means, usually electric, which drive one or more eccentric weights at the desired speed. In each embodiment the motor is carried by a ring mounted and secured to a resilient disk. One or more weights are carried on a shaft in axial alignment with the motor shaft.

Abstract: A rotary vibrator having a cylindrical shape and an outer cam strip running the length thereof is mounted in a housing which has a matching inner cam strip and is affixed to a structure to be vibrated. Vibrator migratory movement during operation causes the vibrator cam strip to engage the adjacent surface of the housing and the housing cam strip to engage the adjacent surface of the vibrator. This wedging effect gives rise to a third point of vibrator-housing contact located essentially equidistant from the other two contact points and displaced therefrom approximately 120.degree.. Thus, a secure inter-locking between the vibrator and its mount is achieved. A source of compressed gas may be attached at either end of the vibrator and an exhaust outlet located in the vibrator directs the pressurized driving fluid into the space between the vibrator and housing for vibrator cleaning and lubrication and for quieter vibrator operation.

Abstract: This invention pertains to induced vibrations and the dampening of these vibrations in the motor means. Vibrations induced by rotating a shaft having eccentric weights thereon have been used to produce all kinds of shaking apparatus including large car shakers in which the induced force may be much as eight thousand two hundred pounds. These vibrations may be as much as five thousand six hundred vibrations per minute and may be employed in hugh bins and hoppers in which the capacity is as great as one hundred fifty thousand pounds. Vibrators using air, electric or hydraulic motors can be tuned or adjusted to provide the desired results. Most of these vibrators using a tuned motor may be temporarily or permanently attached. Conventional motor driven vibrators, as far as is known, transmit the vibrational forces into the shaft of the motor. Said motors, which are usually conventional off-the-shelf units have their rotor bearings designed for rotary motion rather than combined with a vibratory force.

Abstract: This invention pertains to unidirectional vibration apparatus using resilient shock absorber mounting means to change multidirectional vibration into unidirectional vibration forces. Three embodiments pertain to the use of pressurized air for driving an eccentric weight at a desired speed. One embodiment employs a turbine which is carried between and by resilient disk members secured to mounting rings. A roller is driven by pressurized air and the vibrating apparatus is carried within and by a resilient ring. A ball vibrator also uses a resilient ring as a shock absorber.

Abstract: Apparatus for riddling bottled wine having an elongated frame carried on resilient supports along the longitudinal sides of the frame and having a motor-driven eccentric weight carried on the frame for vibrating the frame and cases of bottles thereon in directions perpendicular to the longitudinal center line of the frame, together with rows of inflatable air bags along opposite sides of the frame for alternately lifting such sides and jostling bottles of wine within their compartments in cases supported on the frame. A clock system controls the power supply to the vibrator motor and the air supply to the inflatable air bags, the clock system being adjustable for supplying electrical current to the vibrator motor at pre-selected times and for periods of pre-determined duration, and for supplying air under pressure alternately to the air bags at one side or the other of the frame at selectively pre-determined intervals and for periods of pre-determined duration.

Abstract: This invention pertains to unidirectional vibration apparatus using resilient shock absorber mounting means to change multidirectional vibration into unidirectional vibration forces. Three embodiments pertain to the use of pressurized air for driving an eccentric weight at a desired speed. One embodiment employs a turbine which is carried between and by resilient disk members secured to mounting rings. A roller is driven by pressurized air and the vibrating apparatus is carried within and by a resilient ring. A ball vibrator also uses a resilient ring as a shock absorber. Two embodiments are shown with electric motors as a power source. In each embodiment the motor is carried by a ring mounted and secured to a resilient disk. One or more weights are carried on a shaft in axial alignment with the motor shaft.

Abstract: An actuator (22) for a vibratory finishing machine or the like includes a housing (24) with a rotatable quill shaft (44) of comparatively low bending stiffness extending therethrough. Mounted on each end of the quill shaft (44) is a journal (46) which defines a hydrodynamic bearing with an adjacent corresponding internal surface of the housing (24). The quill shaft (44) is axially constrained within the housing (24) by an inward thrust bearing (68) and an outward retainer (56), dynamic seal (64), static seal (62) and spring (66) located on opposite sides of each journal (46).

Abstract: Apparatus for creating a path through particulate material such as granular or pulverulent material in a storage container is lowerable into the material in the container and includes an upper part attachable to a lowering device and a lower part. The lower part has a downwardly and inwardly inclined outer wall extending to a lower central area, a vibrator for vibrating the outer wall along a substantially vertical axis, and an air nozzle at the lower central area to which air can be supplied.

Abstract: A method of mixing chemically bonded foundry sand by introducing the sand and binders into a lengthwise extending spiral shaped mixing trough and vibrating the trough is disclosed.

Abstract: An apparatus for shaking an aerosol spray paint container includes a base having a cradle for receiving the container and a pair of clamps for removably securing the container within the cradle. The base is releasably secured to the movable driven member of a hand-held power tool for shaking the container. If a hand-held power sander is utilized to shake the container, then the base of the shaking apparatus is clamped to the vibrating sanding plate of the sander. If a drill or other hand-held power tool having a rotatable chuck is utilized to shake the container, then the shaking apparatus includes a first drive shaft rotatably mounted to the base; a second drive shaft is concentrically mounted to the first drive shaft and is engaged by the rotatable chuck of the power tool for causing the base to rapidly oscillate and vibrate.

Abstract: A mechanical vibrator assembly adapted to be attached to a device to be vibrated and wherein a shaft has a first weight system eccentrically fixed to the shaft, and a second axially displaced balancing weight system rotatable on the shaft. Stop surfaces limit rotation of the second weight system to approximately 180.degree., from a counterbalancing position substantially 180.degree. removed from the first weight system to a shaft vibrating position just short of circumferential alignment with the first weight system. A motor drives the shaft in a direction of rotation such that a slackening of speed removes the second weight system to the 180.degree. removed balanced position.

Abstract: A vibratory actuator (22) includes a housing (62), a rotatable shaft, (78) extending through the housing, and an eccentric member (80) to which the shaft is secured. Vibration is effected upon rotation of the eccentric member (80) by the shaft (78). A hydrodynamic fluid film gap is provided between a partial cylindrical journal surface of the eccentric member (80) and a full cylindrical bearing surface of the housing (62), and the housing contains hydrodynamic fluid. Radial loading between the housing (62), shaft (78) and eccentric member (80) is more uniformly distributed to reduce structural deflections and thus facilitate maintenance of the proper film of hydrodynamic fluid during operation of the actuator (22). If desired, the fluid can be circulated through the housing (62) for cooling purposes.

Abstract: A rotary vibrator having a housing, a rotating shaft, and one or more eccentric weights having a hub portion mounted on the shaft and an eccentric portion extending outwardly from the hub generally perpendicular to the rotational axis. Each eccentric portion is defined by leading and trailing edges extending generally radially from the hub and connected to an outer periphery. Air inlet and outlet passages are arranged longitudinally in the housing at each end thereof for the purpose of admitting and circulating air in and around the bearings of the vibrator. The faces of the leading edges of the eccentric weights are beveled toward the outlet passages in a manner so that upon rotation of the vibrator, the leading edges will act like a propeller to draw air in through the inlet passages, circulate it through the housing and push it out through the outlet passages, thereby to ventilate and cool the vibrator bearings.

Abstract: A vibration generator has a driven excitation shaft on which are fixed two axially-spaced first eccentric weights. A second eccentric weight positioned between the two first eccentric weights also rotates with the excitation shaft but is angularly adjustable thereon about the longitudinal axis of the shaft in order to adjust the vibration amplitude. Such adjustment employs a pawl mounted on one of said first eccentric weights for two-and-fro movement tangentially of a gear ring mounted on said second eccentric weight and with the toothed periphery of which the pawl engages. The second eccentric weight is lockable in adjusted position by a friction disc mounted on said one first eccentric weight and into frictional engagement with which the second eccentric weight is urged by a set of annular disc springs disposed in compression between the second eccentric weight and the other of said first eccentric weights.

Abstract: A variable mechanical vibrator includes a first eccentric weight fixed to a rotatably mounted shaft. A second eccentric weight is rotatably mounted on the shaft, and the two weights are rotated together under control of mating engagement abutments, one carried by the shaft and one carried by or comprising a surface of the second eccentric weight. In one embodiment, first and second prime movers are used to rotate the shaft and the second eccentric weight, respectively; and when primary rotation of the shaft is effected by the first prime mover, the first and second eccentric weights are diametrically oppositely aligned with respect to one another on the shaft providing a balanced operation. In this mode of operation, the abutment carried by the shaft drives the abutment on the second weight to rotate such weight set with the shaft.

Abstract: A vibrating device having a mass rotated about a first shaft while the first shaft is rotated about a second shaft.

Abstract: An easily adjusted vibratory device useful, for example, on soil compacting vibratory rollers. One or more mass elements are supported eccentrically on a rotating shaft. The mass elements are pivotal about a pivotal axis or shaft perpendicular to the rotating shaft. Pivoting the mass elements during rotation of the shaft moves the center of gravity of the mass elements toward or away from the rotating shaft and thereby continuously alters the magnitude of the centrifugal force acting on the mass elements to cause vibration. The mass elements are formed, with respect to the pivotal shaft, to minimize the force necessary to pivot the elements by maintaining the moment arms from the axis of the pivotal shaft to the centrifugal force resultant at or near zero. In a specific embodiment the rotating shaft is cylindrical, the mass elements and pivotal shaft are supported within the rotating shaft.

Abstract: Two eccentric weights of a vibrator are mounted, respectively, on two coaxial shafts, one of which is a hollow shaft mounted on the other shaft. The two shafts can be connected for rotation in unison, and can be separated for relative rotation to alter the angular relationship between the weights. The mechanism is provided to alter the angular relationship between the weights while both shafts continue to rotate. An electric clutch is connected between the driven shaft and the hollow shaft to connect the two coaxial shafts for rotation in unison, and a brake is provided to slow the rotation of the hollow shaft after the clutch is disengaged. Thus, the angular relationship between the eccentric weights, and hence the stroke of the vibrator, can be changed.

Abstract: A vibrator with attached prongs which achieves the breakup of compacted materials in structures similar to silos, grain elevators and railroad cars is set forth. Attached to the pronged vibrator is a cable which allows the vibrator to be lowered into the structure where breakup is to be accomplished. The vibrator is housed within a shell of dimensions applicable to the particular use. Secured to the vibrator shell are a multiple of prongs. The vibrator when in operation causes not only the sphere to vibrate, but also the attached prongs. The vibrator is capable of imparting varying frequencies to the compacted materials and may be adjusted to reach the natural frequency of the compacted material. Thus where the vibrator comes into contact with the compacted material, breakup is achieved both by the physical action of the prongs and also by achieving the natural frequency of the material which in and of itself causes breakup.

Abstract: A clamp means is provided for holding at least one vessel so that the vessel can be agitated by a drive means with the clamping means permitting the vessel to move with the clamping means defining the null point of the movement. The clamp means may provide a rack for resiliently clamping the vessel. Preferably, the clamping means is for resiliently clamping the vessel at a position remote from the bottom thereof. Drive means are provided for imparting motion, such as orbital motion, to the agitating means whereby fluent contents of the vessel are agitated. The apparatus is adapted for the holding and agitating a single or a plurality of vessels, such as a plurality of test tubes. The drive means also is capable of pulsing the orbital motion.

Abstract: A relatively quiet vibrating screen has a rotatable eccentric mass drive supported on the screen body by isolator mounts which transmit vibratory forces at shaker frequency unrestrained to the screen body and attenuate forces at higher harmonics of shaker frequency that would otherwise excite wall panels of the screen body into resonance, thereby reducing the noise level of the screen.

Abstract: Apparatus for mixing liquids such as paints in closed containers, including a motor drive unit coupled to a drive pulley to produce a constant rotational speed. The drive pulley is connected via an eccentric crank to a shaker plate which has mounted therein a container housing, the shaker plate being also supported from at least two other points by similar crank couplings so as to produce a circular oscillating motion when the drive motor is actuated.

Abstract: A device for cleaning articles such as jewelry by vibrating a container for a cleaning solution in which the articles are immersed at sonic frequencies with a motor which drives an eccentric weight. The cleaning device is made mainly of molded plastic parts which can be assembled with minimal need for tools so as to minimize manufacturing and assembly costs.

Abstract: A spectacle washer including a washing tub of a generally rectangular shape and a vibrator of not ultrasonic but mechanical type. The washing tub is formed at one of its longer side walls with a nose-shaped bulge which bulges thereinto and extends along the vertical center line of that particular side wall. The bottom wall of the washing tub is partially raised to form a raised bottom which extends around that center line and merging into the nose-shaped bulge. This raised bottom is shaped and sized to allow both the lower portions of the paired rims and the paired nose pads of a pair of spectacles to stably rest thereon, while one of the sides of the spectacles being placed on that portion of the bottom wall, which is left unraised. The mechanical vibrator is equipped with an electric motor and an eccentric weight. The electric motor has its vertical shaft of rotation positioned in the vertical center plane, in which the afore-mentioned center line extends.

Abstract: The invention relates to vibratory material handling apparatus and more particularly to a dual exciter system derive for vibrating the apparatus wherein the exciters are positioned on either side of the center of gravity of the apparatus and direct vibrations at obtuse and acute angles, respectively, through the center of gravity of the apparauts, the arrangement being much whereby the vibratory force exerted by each exciter may selectively be varied so as to cause the apparatus to vibrate vertically, or displaced from the vertical, so as to convey in one direction or the opposite direction. The arrangement is such that the spring system connecting the exciters to the material-handling apparatus acts as isolation springs when the vibration generator associated therewith is inoperative, and as tuned natural frequency systems when the vibrator is actuating.

Abstract: A vibrator is prevented from transmitting its vibratory motion to the vibrator holder, such, for example, as a handle, by interconnecting the vibrator and handle with a spring arranged so that the spring serves as a resilient cantilever. Amplitude of vibrations are enhanced without a corresponding increase in the amount of vibration transmitted to the handle by arranging the resilience of the spring and the mass of the vibrator to be resonant at the frequency of vibrations or at a submultiple of those frequencies.

Abstract: There is provided a mixing apparatus wherein liquid or pulverous material is mixed by shaking a can containing the material to be mixed. An inner frame of the apparatus is provided with a table for the can and a means for clamping the can to the table. The inner frame is arranged for vibration relative to an outer frame. An electric motor is mounted on the outer frame and drives by way of a transmission system the clamping means, which comprises a screw/nut assembly. Two parallel links couple the inner frame to the outer frame and the motor power is transferred.A pulley/belt assembly transfers the motor power to that part of the transmission system which is mounted on the inner frame. The pulleys of this assembly are substantially coaxial with the pivot axes of the links.A remote control system is provided for automatic sequential and controlled operation of the apparatus functions during a mixing cycle, i.e. clamping shaking and releasing a can.

Abstract: Powdered material such as insecticide or the like is moved from a hopper by the combined effect of gravity, vibration and induction of a rotary blower for distribution as a gas-powder suspension. The element for vibrating the powder is driven by the blower to induce vibrations in the material along a plurality of different directions. Alternate versions include a canister of material removably located in the hopper, and a container that replaces the hopper and is removably secured to the apparatus.

Abstract: A low profile material carrier which, in a preferred embodiment, comprises a grain trailer with a low rear opening for dumping. Most of the load, approximately 80%, dumps through the opening under the influence of gravity. The remaining portion of the load is assisted through the opening by a unique vibrator assembly attached to an interior sloping surface of the trailer. The assembly includes an elongated vibrator bar, which extends the length of and is parallel to the downwardly sloping surface of the trailer which leads to the opening. A motor driven shaft having a plurality of eccentric weights positioned thereon is located intermediate the vibrator bar and the inclined bottom surface and is attached to the bar by a plurality of bearings. Upon actuation of the motor, the shaft, and hence the bar, are vibrated so as to serve as a direct stimulus for the emptying of the material in contact therewith.

Abstract: A vibration device for a silo for bulk material having a funnel-shaped delivery outlet comprises an elastically suspended support carrying a jolting motor and provided with downwardly extending guide wings in the configuration of a rosette of blades extending into the outlet passage and a cage surrounding the guide wings and formed with downwardly converging walls parallel to the walls of the delivery funnel. The cage may be provided with an array of downwardly extending rods and is supported against the sides or walls of the funnel by elastic members or buffers, the entire assembly being elastically suspended in the funnel, e.g. by tension springs. Between the jolting motor and the cage, there are provided longitudinally and torsionally elastic spring elements so that the assembly comprises two independently vibrating masses set into vibration by the jolting motor.