Abstract: The invention relates to an impeller of a rotary pump having an annular upper part defining a central inlet opening, a drive-adjacent disk-shaped lower part, and a plurality of blades secured between the upper and lower parts. The upper and lower parts are separate parts which secure together. Each blade is integrally formed with either the upper part or the lower part. Every other blade is formed with the upper part, and the remaining blades are formed with the lower part. Each blade has a free edge, remote from a base thereof, which has a projection which extends into a recess or opening formed in the part to which it is not integrally molded. After the upper and lower parts are assembled together, free spaces around the projections are filled with injected plastic, thereby securing the upper and lower parts together and securing the free ends of the blades.

Abstract: A centrifugal blower impeller has wide, backwardly inclined blades of the type that require the addition of a locking ring in order to stiffen and stabilize the blade tips. The blade tips and locking ring incorporate special notches and interfitting channels that allow the locking ring to be simply pushed down and onto the blade tips, self retaining without the necessity of any extra assembly steps like staking or welding. The side edges of the blade tip notches wedge against the walls of the channels if the blade tip attempts to bend in either direction.

Abstract: A ventilation system for a car including an outside air channel, an interior air channel, and a radial fan having a suction side and an exhaust side. The fan is situated at junction between the outside air and interior air channels, so that the outside air and interior air channels are axially connected to the suction side of the fan. A partition wall is movable within an unrestricted cavity, so that the outside air and interior air channels are situated at different sides thereof.

Abstract: A wind power or hydraulic power machine with axial feed, radial outflow and variable geometry vanes is disclosed. This machine has a support that channels the flow, in limiting the escape flows to the maximum, and provides protection in giving to this wind power or hydraulic power machine excellent resistance to axial stresses, and plays the role of an inertia wheel.

Abstract: An impeller for a centrifugal pump is disclosed for attenuating the effects of pressure and flow surges experienced by the pump. The impeller includes a rotatable impeller shaft to which a plurality of circumferentially-spaced vanes are mounted for rotation therewith, the vanes extending outwardly relative to the impeller shaft and each including first and second axially spaced edges. First and second axially-spaced cover members are provided for the plurality of vanes, the cover members being mounted for rotation with the impeller shaft and extending outwardly relative to the axial direction of the impeller shaft. The first cover member is disposed adjacent to first edges of the vane and the second cover member is disposed adjacent to second edges of the vane so as to provide an impeller chamber between the first and second cover members which is divided into subchambers by the vanes.

Abstract: A turbine alternator comprising a central clear optical path through which certain objects or optics may pass unimpeded. This design features a means for internal safe arming of the munition in which the turbine alternator is contained. In addition, this turbine alternator features a rotating stator and stationary windings.

Abstract: A centrifugal fan includes a fan wheel having airfoil blades mounted for pivotal movement about their center of gravity. A yoke mechanism exterior of the fan wheel, when moved axially of the fan wheel drive shaft axis, causes actuator rods to move through the sidewall of the fan wheel. The axial movement of the actuator rods is translated first into rotary movement of a quill hub relative to the fan wheel and finally to radial movement of blade pivoting levers interior of the fan wheel. The movement of the blade pivoting levers causes the pitch of the individual fan blades to be changed in accordance with the degree of movement of the yoke mechanism. The yoke mechanism, actuator rods, quill hub and blade pivoting levers operate independently of the fan wheel so that blade pitch can be varied over an operating range irrespective of whether the fan wheel is stopped or is rotating.

Abstract: A cup shaped disc (13) consisting of a central portion (20) having radially extending blades (18) is attached with its central portion to the protruding hub portion (12) of a radial flow turbine wheel (2) consisting of a backing plate (10) extending transversely to its rotational axis (7) and having axially protruding turbine blades (11) in addition to the protruding hub. At high rotational speeds this disc (13) will tend to straighten out, whereby the effective portion of the turbine blades will be reduced and the increase in the rotational speed restricted. This is of importance in ram air turbines for missiles.

Abstract: The rotary surface aeration device used to rotate and aerate sewage is provided with a carrying part connected to a vertically running drive axle. A plurality of liquid transporting units also fastened to the carrying part.In order to improve the oxygen input, the liquid transporting units, which are adjacent to each other viewed in the circumferential direction of the rotary aerating device, have different jet exiting speeds. This is achieved by giving the scoop outlet edges of these liquid transporting units, which are adjacent to each other, a different distance (d, d') from the drive axle of the rotary aeration device. The liquid transporting units are arranged and constructed in such a way that the liquid jets of at least two liquid transporting units, which are adjacent viewed in the circumferential direction of the rotary aeration device, exiting from said units during the operation of the rotary aeration device strike each other before reentering into the liquid to be aerated.

Abstract: A centrifugal fan wheel is provided with blades 10 which may have their pitch changed through circumferential movement of a ring 30 tied to an outer tube 28 encompassing a drive shaft 24 and capable of having its rotative position relative thereto changed, through the axial movement of a control rod 38 to which is attached a pin 44 extending into the control rod through a diagonal slot 42 in the outer tube and an axial slot 40 in the drive shaft. In a further embodiment an inlet vane 50 has its angle changed through its pivotal relation that one edge of the vane with a slot 60 in the outer tube, so that both blade 10 pitch and vane 50 angle are concurrently changeable.

Abstract: A vortex pump which has been converted from a centrifugal pump by interposing an annular spacer between the power frame and casing of the centrifugal pump to provide space for a vortex impeller which has been substituted for the centrifugal impeller. An adjustable vortex impeller consisting of a hub portion with an annular flange having a plurality of sets of holes circumferentially spaced thereon, a plurality of vanes each having a plurality of holes in its root portion, and bolts for fastening each of the vanes in a plurality of different positions on the hub by passing through different pairs of aligned holes in the flange and in the roots to provide different impeller diameters while maintaining the discharge angle of the vanes within a small predetermined range. A plurality of sets of vanes of different sizes can be selectively mounted on the hub to further extend the range of impeller diameters.

Abstract: A surface aerating rotor has an intake zone for circulating and aerating a liquid, and includes a supporting assembly, a driving shaft connected to the supporting assembly, fixed flow guidance devices disposed in the intake zone of the rotor, and a plurality of fluid throughput units. Each fluid throughput unit has a discharge opening, and includes a vane which has an adjustable discharge angle with respect to the radial direction, and at least one flow guide wall. At least some of the fluid throughput units include an extension member downstream of the discharge opening, a flow guide profile on the extension member, and a baffle downstream of the flow guide profile. Connecting pins join the fluid throughput units to the supporting assembly, for adjustment of the vane discharge angle within a predetermined range.

Abstract: In a rotary ventilator having a vertical shaft rotatably supporting a rain plate, a vertically movable ring, diametrically equal with the rain plate, surrounds the depending end portion of the shaft. A plurality of elongated vanes, vertically disposed in circumferentially spaced relation extend between the rain plate and movable ring and are supported for angular rotation about their vertical axes by the peripheral edge portion of the rain plate. The depending end portion of each vane is provided with a depending tab given a quarter twist about its vertical axis which projects through a cooperating slot formed in the peripheral edge portion of the movable ring. A lever, pivotally connected with the depending end portion of the shaft for vertical movement of its respective ends, lifts the movable ring toward the rain plate and imparts a partial angular rotation to the respective vanes, about their respective axis, from a normal open position to a ventilator closed overlapping position.

Abstract: A centrifugal impeller for use in a combination centrifugal-turbine pump capable of pumping liquids at or near the boiling point thereof with suction heads not greater than about one foot and wherein the entrance portion of the centrifugal impeller includes a plurality of vane inserts removably mounted therein, with adjacent ones of the inserts having vanes that are aligned with each other to define liquid-feeding spiral vanes that extend through the plurality of inserts.

Abstract: A centrifugal impeller for use in a combination centrifugal-turbine pump capable of pumping liquids at or near the boiling point thereof with suction heads not greater than about one foot and wherein the entrance portion of the centrifugal impeller includes one or more of vane inserts removably mounted therein, with adjacent ones of the inserts having vanes that are aligned with each other to define liquid-feeding spiral vanes that extend through the plurality of inserts.

Abstract: 1.

Abstract: An adjustable centrifugal impeller including a hub, a plurality of elongated vanes located circumferentially on the hub with each of the vanes having inner and outer portions, an annular ring mounted for circumferential sliding movement on the hub, first fasteners extending directly between the inner portions of the vanes and the annular ring for fastening the inner portions of the vanes directly to the hub, and second fasteners extending directly between each of the outer portions of the vanes and the hub for fastening the outer portions directly to the hub, and a plurality of locations on the vanes for receiving the second fasteners to thereby adjust the positions of the vanes on the hub, each of the vanes having a flat face which bears against flat faces of the annular ring and the hub to provide a rigid connection therewith through full face-to-face contact of the overlapping parts.

Abstract: An impeller which is adapted to be affixed to a rotating shaft is provided for aerating a liquid and includes a support disk having a circular outer edge. The support disk is affixed to the rotating shaft in such a manner that it is maintained in a substantially perpendicular relationship with the shaft. A plurality of impeller blades are affixed to the support disk in such a manner as to be spaced from the shaft and extend above the upper surface of the support disk and below the lower surface of the support disk. The impeller blades further extend outwardly from the circular outer edge and have an upper edge which lies in a plane substantially parallel to the support disk. Each impeller blade which is tapered causing the blades to be widest at the portion closest to the rotating shaft and progressively more narrow as the blades extend outwardly from the support disk.

Abstract: A horizontal multidirectional turbine windmill comprising a housing having apertures on all sides for ingress and egress of air and a rotor on a drive shaft within the housing, each aperture being the larger end of a funnel-shaped passage, the smaller ends of said passages being positioned to deliver air at relatively high velocities against the rotor buckets, the air entering the housing through one or more apertures on the windward side thereof and being exhausted through apertures on the leeward side. The housing is preferably so shaped that ambient air impinging on the housing surface without entering an aperture will flow around the housing and create a low pressure zone adjacent the exhaust funnel apertures, and the housing is also preferably so shaped that a plurality of units can be stacked vertically with their drive shafts coupled together. The rotor buckets are flexible and their profiles are varied automatically as a function of wind and rotational speed.