Abstract: The present vibrating bucket screen attachment for cleaning beaches and for being mounted on mobile machines such as skid-steer loaders includes an outer excavating bucket with a sand-scooping blade and runners on the outer bucket for supporting the outer bucket relative to the beach. An inner vibrating screen bucket is resiliently mounted in the excavating bucket and includes a hydraulically operated vibrator. Resilient bumper pad mounts disposed between the inner and outer buckets suppress the vibrations of the inner vibrating bucket relative the outer excavating bucket. A floor screen portion of the inner bucket is mounted above bottom, sand-engaging portions of the outer bucket such that the screen portion is spaced from the surface of the beach to vibrate freely during the separation of sand from litter.

Abstract: In a screening machine comprising two screening frames (13 and 31) each having mutual oppositely located feed and discharge ends on which there is arranged an elastic screening lining (54) and which are caused to oscillate by independent oscillating drives wherein the two screening frames (13 and 31) are associated with each other at different heights in such a way that the lower region of the upper screening frame (31) and the upper region of the lower screening frame (13) lie in a common plane, that the elastic screening lining (54) is secured to the two screening frame (13, 31) in the common plane thereof and that the upper screening frame (31) is independently driven in a circular configuration at the feed end and the lower screening frame (13) is indepndently driven in a circular configuration at the discharge end.

Abstract: The method of screening solid materials resides in feeding a solid material onto a sifting surface and imparting oscillations to surface under the action of an effort directed at an angle to the longitudinal axis of the sifting surface, providing for moving particles of the solid material directly engaging the sifting surface from the loading zone to the discharge zone at an acute angle to the vertical component of the applied effort, and limiting their displacement in a direction normal to the sifting surface. The apparatus for performing the method comprises a box carrying a vibrator and a support frame with a sieve secured thereto at an angle to a vertical plane including the longitudinal axis of the box, the sieve being associated with a screen for limiting the displacement of the solid material particles in a direction normal to the surface of the sieve.

Abstract: A screening machine with two driven systems driven in circular oscillation by means of at least one eccentric shaft. The shaft is mounted on both frames simultaneously which are separated from one another and each of the frames comprises a plurality of crossmembers fastened parallel to one another to the respective pair of uprights. The crossmembers of the respective frames, lying in a respective screening plane, alternate with one another and are driven by the systems in a way resulting in a stretching and contracting motion of an elastic screen fastened to the crossmembers and, consequently, the screen material is cast from the surface of the screen.

Abstract: A game toy wherein a vibrator is incorporated in a scooper for scooping up a model piece of a goldfish or the like put in a vessel, and whereby competition is made for catching the model piece in the condition that the vibrations of the vibrator are propagated to the scooper.

Abstract: A screening basket has one or more screen decks and has upright side walls integrated with cross beams. A side beam, at approximately the center of gravity of the basket, is integrated with each of the side walls as well as with the cross beams to provide a unitary, rugged basket capable of vibratory movement on a support frame. A pair of cross shafts extend transversely of the screening basket and project beyond the side walls. These shafts are journaled in the side beams and have one projecting end geared together for opposite rotation. These projecting ends carry semi-circular eccentric weights of different mass to provide an oval vibratory stroke of the screening basket upon rotation of the shafts. Adjusting mechanism is provided to adjust the relative position of the weights on the shafts to vary the angle of stroke. These weights are arranged to receive auxiliary weights to vary the amplitude of vibratory stroke as well as the shape of the stroke.

Abstract: In a vibrating screen, an oscillation driver is connected with a box carrg a screen member at a portion wherein one center of oscillation of the box is located, and is disposed relative to the screen member of the box in an opposite relationship with a bearing damper. Bearing levers supporting the box are disposed substantially perpendicular to the central axis of inertia of the latter and are adjacent the box at a portion of location of its another center of oscillation.

Abstract: Opposing rotationally adjustable vibration motors mounted externally to opposite side walls of a rectangular or circular separator greatly facilitates access to the motors for servicing and/or replacement and enables varying the intensity of vibration of the separator screen over a wide range while motor speed remains constant. Simplicity of construction, compactness and ruggedness of motor mountings is achieved.

Abstract: A vibratory separator for separating drill solids from drilling mud after return from the well bore, including a separator screen and a screen cleaning device positioned adjacent the screen. The screen cleaning device is supported by suitable means to permit filtered mud to pass freely through the device for collection below. The screen is a fine wire mesh mounted in a unique manner to the separator housing such that it vibrates during operation of the system to keep drilling solids from clogging the wire mesh and restricting the flow of drilling mud. The screen cleaning device serves to support the screen and mud thereon in addition to vibrating and wiping the screen as the device rotates due to the orbital oscillatory vibrations of the system.

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: A foundry sand reclaiming apparatus is provided in which lumps of used foundry sand are introduced into a vibrating chamber. The lumps abrade each other to produce discrete particles of reusable foundry sand. As the sand builds up in the chamber, the vibratory action moves the sand to an exit opening from which it is discharged from the vibrating chamber. The vibratory conveying action produced during the sand abrading step may be reversed to cause irreducible particles to move toward and be removed from a discharge outlet.

Abstract: The vibratory screener presented is of a design to convert rotary vibration directly to an unsupported portion of a wire mesh or perforated plate screening surface, while imparting no vibratory energy to the screen's main supporting framework.