Abstract: Method and apparatus are shown for the continuous feeding of pulverized material to a high pressure container. A rotor is located within the high pressure container. The pulverized material is fed from a feed hopper through a stationary feed pipe to a vented spin-up chamber to a plurality of two-stage sprues mounted in the rotor. Control nozzles downstream from the sprues meter the flow of coal through the sprues.

Abstract: Apparatus for distributing flowable material over a base surface comprising 3 rotary members with mask means arranged to interrupt 40 to 60 percent of the flowable material from said first and second members and means for conducting the interrupted flowable material to the third rotary member.

Abstract: The application of liquid to a moving fabric is effected by delivering same to a rotatable spinning disc which centrifugally impels the liquid against the fabric. This action overcomes surface tension causing the liquid droplets to break up into a fine mist so that a large area of fabric is wetted with an amount of liquid which is substantially less than the fabric weight. Also, the velocity imparted to the liquid droplets in mist forms enhances absorption of the liquid by the fabric.

Abstract: Centrifugal blasting apparatus comprising a rotatably supported blasting wheel having a plurality of radially extending impeller blades positioned adjacent the periphery of the wheel. The blades are relatively short and have their inner ends spaced a uniform and substantial distance short of the axis of rotation of the wheel so as to define an abrasive supply space between the inner ends of the blades. A tubular member extends into the abrasive supply space for delivering abrasive onto the impeller blades and comprises a main passageway portion having an axis generally parallel to and spaced radially outwardly from the axis of rotation of the blasting wheel and a discharge extension on the inner end of the main portion extending radially outwardly and terminating in a discharge opening adjacent to and in a closely spaced relationship with the inner ends of the blades. Pressurized air propels the abrasive through the tubular member onto the impeller blades.

Abstract: A method and apparatus for randomly applying a foam composition containing a coloring agent dispersed therein onto a textile fabric is disclosed. The coloring agent is mixed into the foam in a non-homogeneous manner and randomly applied onto a fabric in a system having random application means for delivering the foam-coloring agent composition to a depositing means which is rotated and moved transverse to the direction of travel of the fabric being treated. The foam-coloring agent composition is caused to flow axially and in one embodiment over the edges of a baffle means in a random manner onto the textile fabric being treated so as to impart a random application of the coloring agent thereon.

Abstract: Apparatus is shown for adjusting the feed rate of pulverized feed material into a pressurized container. The apparatus also has utility for compensating for variations in the permeability of the feed material. A rotor that includes sprues with provision for controlling the pressure distribution along the sprues is located within the pressurized container. The rotor hub is connected to a drive means and a material supply means which extend through the wall of the container. A line for controlling pressure along the sprues by gas injection is connected to a chamber between sections of the sprue for controlling gas pressure at that point. The gas pressure control line is connected to a pressurized gas source and a control system external to the rotor.

Abstract: A portable pump spraying device includes a container for the liquid to be sprayed, a housing positioned above the container having a spraying chamber, a pumping unit to elevate the liquid to the spraying chamber, and a rotating disc in the spraying chamber to attenuate and impel the liquid by centrifugal force through an egress port in the housing. Interceptor baffles within the spraying chamber finely trim the liquid spray as it leaves the egress port and direct the excess liquid back to a reservoir for recirculation. The pumping unit includes a rod that is reciprocated by an eccentric on the rotating shaft on which the disc is mounted. The rod acts as a piston which on its suction stroke withdraws liquid from the container and on its compression stroke discharges the withdrawn liquid and forces it through a nozzle onto the disc in the spraying chamber.

Abstract: A coating spraying system is shown for use in spraying the internal surfaces of a hollow container. The system includes a spinning element for dispersion of the coating and a specifically configured metering orifice for preshaping the mass of the coating radially disbursed by the spinning head.

Abstract: Electrostatic paint spray apparatus having rotary spray head with an air seal. To prevent paint or solvent from entering antifriction bearings, the shaft rotating at high speed is provided with an air seal in an intermediate zone between the bearings and the spray head. Air from a source of compressed air communicating with inlet flows through channel into groove and from there via passageways into the annular air feed chamber. Air leaves the feed chamber between depending lip and shaft, preventing the entry of paint or solvent, and operating even when the apparatus is not spraying. Air is throttled in the other direction through the air flow path to an expansion chamber and then is vented to the atmosphere via vents without contaminating the bearings.

Abstract: A mobile irrigation system of the type including an elongated horizontal water conduit assembly having support structure spaced therealong for support from and movement over the ground is provided. One end of the water conduit assembly may be communicated with a source of water under low pressure and a plurality of discharge pipes are supported from the assembly at points spaced therealong and open upwardly and outwardly from the interior of the conduit assembly. A plurality of motor driven generally horizontal and centrally apertured discs are journaled from the assembly and the discharge pipes project upwardly through the central apertures in the discs.

Abstract: Apparatus for building up and repairing a refractory lining of an industrial oven or like hot-running vessel comprises a disc rotatable in a horizontal plane in either direction for centrifugally depositing a granular refractory material on a portion of the lining to be built up or repaired, a conduit having an outlet opening above the disc for feeding the granular material thereto, and a drive shaft for the disc and for mixing and conveying elements for the granular material in the conduit, these elements being capable of conveying the granular material to the rotatable disc in either one of the selected directions of rotation of the disc.

Abstract: A humidification apparatus including a housing, a fan assembly mounted in the housing and having conduits extending therein, a slinger assembly rotatably mounted in the housing adjacent to and coaxial with the fan assembly and having vanes on a surface thereof, and water feed means for delivering water through the conduits in the fan assembly to the surface of the slinger assembly.

Abstract: An aerator for the biological purification of waste water comprises an undulating annular disk of sheet material, centered on a vertical axis of rotation, forming interleaved sets of upper and lower sectors interconnected by generally vertical, radially extending webs. Each lower disk sector defines with the adjacent webs an upwardly open channel whereas each upper disk sector defines with its associated webs a downwardly open channel. A central sleeve, descending from the level of the alternately upwardly and downwardly open channels, obstructs the inner ends of the latter but opens into the inner ends of the former whose effective cross-sectional area is adjustable with the aid of a vertically shiftable shutter ring inside the sleeve.

Abstract: An oil burner which operates on all grades of fuel oil, even dirty oil, has a rotating burner element spinning in a hollow container, with the fuel oil being fed to the burner element. Air is fed in from below. The burner element is of fan-like form with radially extending vanes, and causes forcible recirculation of the burning gases through the fire zone repeatedly, so as to ensure complete combustion.

Abstract: A wear-resistant rotor wheel for use as an atomizer wheel for the atomization of slurries of highly abrasive materials or as a rotor wheel in an agigator or pump of the centrifugal type. The cylindrical side wall of the wheel is formed with ejection orifices and defines together with a body of revolution arranged around the wheel hub a bowl-shaped space which is downwardly limited by an annular plate of wear-resistant sintered material covering the wheel bottom. The annular plate is arranged to be spaced from the wheel bottom with its outer circumference sealingly joining the inner side of the side wall, so that solid particles from a slurry are not allowed to enter between the circumference of the plate and the side wall, while the side wall is allowed to follow deflection of the wheel bottom without subjecting the annular plate to deformation forces.

Abstract: An improved nozzle for use in a cooling tower comprises a connecting member defining an orifice and a spinner rotably mounted on the connecting member so that liquid passing out of the orifice impinges on and thereby rotates the spinner. The spinner defines a plurality of arms projecting from a central section, each arm being spaced from adjacent arms by grooves or slots. The trailing edges of at least some of the arms are inclined at an angle of 10.degree. to 25.degree. with respect to the travel direction of liquid passing out of the orifice. With this construction, liquid to be cooled can be sprayed into the cooling tower in the form of a substantially uniform pattern of very fine droplets.

Abstract: A centrifugal blasting apparatus with a spindle arranged vertically, a boss fixed to the spindle, and a plurality of vanes provided circumferentially on the boss. The vanes are slanting with respect to the axis of rotation and an axis perpendicular to the axis of rotation. The apparatus throws abrasive particles in the axial direction permitting minimal size.

Abstract: A coating apparatus for coating the interior surface of a relatively long, narrow pipe without any portion of the apparatus contacting the interior of the pipe has been provided, and comprises a mobile vehicle carrying a traveling boom on which is mounted a coating or spraying device for coating the pipe, an adjustment mechanism for moving the boom relative to the vehicle and to align the boom with the pipe, and a driving and supporting mechanism for the boom which drives and also supports the boom as it moves into and out of the relatively long, narrow pipe. In addition, several alternative embodiments of spraying devices for the coating apparatus are disclosed which eliminate or reduce "ghosting" or "shading" problems frequently experienced in coating such pipe.

Abstract: A spray dispenser for dispensing liquid in spray form, having a housing, a rotatable spraying disk mounted to the housing, a liquid feeder for supplying liquid from a receptacle to the underside of the disk, and a fixed member spaced below the underside of the disk. The fixed member cooperates with the disk to define a metering opening which regulates the volume of liquid fed to the disk and which can be set in a zero position. A fixed threaded collar is in threaded engagement with a control cap having a tapered inner flange.

Abstract: A rotary atomizer comprising an axially apertured disc of reticulated metal foam, means for feeding liquid to be atomized to the surface of the aperture, and means for rotating the disc at such speeds that the liquid to be atomized travels radially through the disc and is atomized at the outer surface thereof.

Abstract: A large scale liquid cooling assembly has two stages for air cooling of hot liquid. Each stage has a plurality of liquid spray units for selective controlled projection of liquid drops in at least one trajectory extending generally perpendicular from its unit and in a common horizontal direction therefrom. The drop sizes, velocities and volume rates of the liquid spraying are adapted to provide a directional wind effect across the unit along the common horizontal direction. The water can be initially cooled in the first stage, and subsequently further cooled in the second stage. At least some of the units of the second stage are adjacent some of the units of the first stage, and create directional wind effects complementary to the directional wind effect of the first stage.The alignment of the liquid spray units in the two stages can take several different forms.

Abstract: A bulk tank cooling and storage apparatus has heat exchange surfaces substantially covering the side and end walls of the tank. The tank is supplied with a horizontal rotating disc liquid distributor which uniformly distributes the liquid in a sheet over the heat exchange surfaces so that it flows downwardly over the surfaces in a thin film and is cooled by heat exchange operating in cooperation with the heat exchange surfaces. Even distribution of the liquid is provided by the rotating disc distributor which expels liquid from the periphery of the rotating disc and propels the liquid against the walls of the tank. Liquid fed into the tank is directed to the center of the rotating disc where a cylindrical dam or well holds a reservoir of the liquid and distributes it on the surface of the disc. The periphery of the disc may have a knife edge which helps the film of liquid to flow off smoothly without atomization.

Abstract: An atomizer wheel comprising an annular chamber provided with a number of conical outlet holes lined with bushings extending a distance into the chamber.

Abstract: An atomizer wheel for the atomization of dispersions of very highly wearing materials for example a caoline dispersion, said wheel comprising an annular bowl-shaped space defined by a hub, a cylindrical wall concentrically surrounding the hub, and a bottom part connecting said hub and said wall. The wall is provided with a number of holes lined with bushings of a highly wearproof sintered material embedded in cylindrical bushings of a material able to resist tensile stresses such as steel or plastic, said cylindrical bushings fitting loosely in the holes and abutting at their outer end an inwardly projecting edge of the holes and with their inner ends projecting a distance into the annular space.