Abstract: A pneumatic vibrator is provided which operates without the use of bearings. The vibrator includes a generally cylindrically formed housing and a cylindrical shaped rotor contained within the housing. The housing includes an inlet for receiving pressurized fluid and an outlet for discharging the fluid. The rotor has a number of jets formed adjacent the periphery of the rotor and extending through the outer longitudinal surface thereof. The rotor also includes an axle member extending from the rotor and which engages a recess formed in an end of the housing. In operation, the inlet of the vibrator is connected to a source of pressurized air. At least a portion of one of the jets is aligned with the inlet to receive the pressurized air. The air discharged from the jet produces a thrust driving the rotor about the inner wall of the housing.

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: Deposit of solids on the walls of tubular continuous flow reactors is avoided by a process and apparatus in which an oscillating motion is superimposed on the linear flow of reactants in order to maintain turbulent flow throughout.

Abstract: Apparatus and method for producing a fuel comprised of oil and water in which a mixture of oil and water is constituted as an emulsion by exposure to agitation effective to cause cavitation within the mixture.

Abstract: A vibrator, actuated by a pressure fluid to impart oscillations to a working platform carrying the material being handled, comprises a stationary base on which an elastic member is mounted on the side facing said working platform so as to adjoin the working platform, said elastic member being made as a closed-contour collar having a lateral surface. Provision is also made for a working chamber defined by said base and said elastic member and communicating with a source of pressure fluid. It is the pressure fluid which makes the elastic member oscillate and imparts vibrating motion to said working platform.

Abstract: An oscillatory mechanism, designed particularly for use in a laboratory shaker, includes a member, or a system of members, arranged to perform oscillatory movements, the transmission of power to that member or system, whereby its oscillation is caused or maintained, being by means of fluid pressure, the mechanism comprising means defining one or more chambers each having an inlet connectible to a source of pressurized fluid and an outlet through which, when open, pressurized fluid supplied to each chamber can escape; the respective chamber being expansible under the action of said pressurized fluid when each said outlet is closed; and wherein the motion of the oscillatory member or system in operation cyclically opens and closes each said chamber outlet, the consequent expansion of the respective chamber upon closure of the outlet delivering an impulse to said member or system whereby the oscillation thereof is caused or maintained.

Abstract: A reciprocating pneumatic piston vibrator for flowing granular materials is cushioned at an impact and by an elastomer and at the other end by air for reducing the decibel level while transmitting sufficient impact force to begin and maintain granular material flow.

Abstract: A device for producing acoustic vibration in a flowing liquid or gaseous medium, whereby a liquid or gaseous medium is continuously circulated and periodically subjected to local compression which is converted into mechanical oscillation and the medium produces acoustic vibration. The proposed device for producing acoustic vibration in a flowing liquid or gaseous medium comprises a rotor and a stator in coaxial arrangement, their side surfaces being provided with at least one row of holes. In the rotor, the number of holes in each row is less than in the stator. The device further includes an oscillator of an elastically deformable material, which encompasses the stator and is arranged in immediate proximity to its side surface, opposite the rows of holes. The device of this invention considerably increase the intensity of acoustic vibration, which makes it possible to speed up production processes and enlarge the volume of media being processed.

Abstract: Concrete is manufactured by mixing cement with substantially the exact precise quantities of water needed to produce a setting of the cement, agitating the mixture until its viscosity is substantially reduced, adding dry sand or other agrigate, mixing with a slurry, patting the mixture through a nozzle where air is introduced under a pressure and air is emitted in the form of jets into the tapering part of the nozzle, and the mixture is vibrated to achieve maximized distribution of its components while being blended and recombined during the process of gunning and feeding to the location of distribution. The concrete mix may be applied appropriately to a gun assembly or a gun type device designed dispense entrained granular materials in a compressed stream onto a work area.