Abstract: An electrostatic particle spray gun having, in one preferred embodiment, a conical deflector of insulative material mounted in the nozzle in the particle path for forming a conical particle spray pattern. A resistive sheet connected to a high voltage electrostatic supply is sandwiched between the forward and rearward ends of the deflector, leaving only the perimeter of the sheet exposed at the peripheral region of the conical deflector. The perimeter of the resistive sheet functions as a multi-point circular electrode for charging the particles such that improved coating transfer efficiencies are achieved. Also, because of the resistive nature of the resistive sheet, the sheet constitutes a resistor in the electrical current path between the center of the sheet where it connects to a high voltage terminal and the circular periphery of the sheet which serves as the multiple point charging electrode, thereby minimizing unsafe electrical discharges should the electrode inadvertently approach a grounded object.

Abstract: An atomizer comprises a cylindrical mixing chamber with open entry and discharge ends. An inner barrel for a slurry or fluidized dry powder is connected to the entry end for supplying the slurry or fluidized fine powder into the mixing chamber. One or more atomizing gas ports extend at an angle into the mixing chamber for supplying atomizing gas to be thoroughly mixed with the slurry or fluidized dry powder in the mixing chamber. The atomizing gas ports are spaced upstream from the discharge end by from one to five times the diameter of the mixing chamber, and downstream from the entry end. A larger diameter volume chamber communicates with the discharge end of the mixing chamber and has at least one nozzle which permits the homogenized mixture to exit therefrom. An impact surface is positioned opposite the discharge end. The at least one nozzle is positioned around the impact surface.

Abstract: This invention concerns a liquid distribution system consisting of modular elements fitted with two or more outlets. Each modular element (1) has an external jacket (2) through which one or more tubular ducts (3) pass, each receiving two opposed stopcocks or control valves (15) connecting or shutting off the branch pipes (4) from the internal ports (9, 10) through which the liquid flows, these inner ports (9, 10) being fitted with a projection (12) and recess (11) fitting for assembly of the various elements so as to form the distribution system, the branch pipes (4) being fitted with a spike base (27) to be inserted into the flower pot or into the flower bed, the system permitting the obtaining of a perfect and homogeneous distribution of the liquid at a minimum pressure, low costs, limited space requirements and easy installation.

Abstract: A fuel injection nozzle for use in direct injection of fuel to an internal combustion engine, the injector nozzle comprising a body having a longitudinal fuel passage terminating in a port which in use communicate the fuel passage with the combustion chamber of the engine. A valve element to co-operate with a valve seat provided in the port to control fuel flow to the combustion chamber, and a fuel spray directing surface in the port extending downstream from the valve seat. The body including a cavity between the spray directing surface and that part of the body through which the fuel passage passes, with the cavity being shaped and located to restrict the area for conductive heat flow from the spray directing surface to fuel passage area of the body. The restriction of the heat flow maintains the spray directing surface at a temperature to combust particles of combustion products deposited thereon.

Abstract: A flexible pipe contains trickle irrigation emitters positioned inside the pipe. It consists of an inner plastics tube provided with spaced chambers and an outer plastics tube fused with the inner tube and covering all chambers, the outer tube being perforated by water outlets in respect of each chamber. The bottom of each chamber is perforated by water inlet openings, and each chamber contains a rigid, oblong emitter unit having a recessed top surface with a raised rim tightly fused to the outer tube; the bottom surface of the emitter unit is flat and parallel to the chamber bottom and contains a flow-restricting duct which communicates at one end with the chamber bottom and at the other with the recessed top surface.

Abstract: A bimetallic leaf seal 40 for forming an air seal between adjacent structures (38, 42). The bimetallic seal 40 comprises two metallic layers 46, 48 having different coefficients of thermal expansion. The seal moves in a preferred direction upon the application of heat to form an air seal upon the application of heat.

Abstract: A spray medium inset for a spraying pistol includes a spraying nozzle, and a needle for selectively closing the nozzle spray opening. The inset includes a connecting channel terminating in a cylindrical recess having an annular recess in the wall surrounding the cylindrical recess that snugly accommodates an annular ridge around the opening of a spray medium tank detachably secured to the connecting channel in the cylindrical recess. The connecting channel also includes a plug for normally keeping the spray opening closed with the jet needle. The tank has a concave bottom supporting a mixing shaft in a claw plug with a frangible annular zipper zone around the shaft. The mixing shaft is formed with a plug that engages a seat in the connecting channel bolt member that keeps the connecting channel closed and the spray opening closed with the shaft in its original extended position.

Abstract: In the use of a tractor to maneuver an airplane on its nose landing gear, which tractor includes a chassis (10); having a rear access (32) which receives said nose wheels and having two telescoping bars (38) the length of which can be adjusted by means of first hydraulic cylinders (40) and to the rear ends of which (38.2.1) pivotable pulling arms (54) are hingedly connected for engagement behind the nose wheels; and having a support surface (30.3) for the raising of the nose landing gear, which is performed by means of second hydraulic cylinders (44), in order to cause less wear on the nose wheels during loading and raising and to prevent damage to the tractor and/or nose landing gear in the attempt to pull said nose landing gear into the recess by means of the pulling arms, it is suggested:(a) to form the chassis in two parts and to hingedly connect its front portion (10.1) with its rear portion (10.

Abstract: The present invention is a gravity separator for classifying particulate matter as to weight. The invention herein uses a screened vibrating deck having a flow of air therethrough for separating the particulate matter placed thereon. The air flow is provided by a fan, located centrally of the housing below the deck and, which fan rotates about a vertical axis. Movement is imparted to the deck by a drive rod connected to an eccentric shaft. The eccentric shaft rotates about an axis transverse to the fan shaft. A single drive motor is used to operate both the eccentric shaft and the fan.

Abstract: This invention concerns a device for continuous adjustment of a set of workpiece mounts from a number of such mounts in defined work positions whereby the workpiece mounts are arranged with a certain spacing on an endless conveyor device that moves in rotation by increments such that the spacing corresponds to the length of one increment of movement of the conveyor device. Through additional simple adjustment means, the effect is acheived that the set of workpiece mounts in the working position can be adjusted to spacing that differ from the length of one increment of conveyor movement. Then the ork positions thus set are always maintained again in revolution of the endless conveyor device.

Abstract: An artificial snow generating apparatus having a vertical inner cylinder for generating and growing snow and an outer tank surrounding the inner cylinder and having a cooler for cooling the inner cylinder for an ice crystal quantitative feeder for generating and feeding a predetermined quantity of ice to a lower part of the inner cylinder from a cooled spray chamber into which a spray producing nozzle sprays water from a feed water tank by aspiration with air from a saturation tank containing water. A blower periodically blows humidified air through the spray chamber to blow ice particles into the inner cylinder. The apparatus also has a cloud-forming water quantitative feeder for generating and feeding a predetermined quantity of particles of cloud-forming water having a predetermined particle size to the inner cylinder at a position above the ice crystal quantitative feeder.

Abstract: A rotating spraying type coating apparatus having a spraying head attached to a rotating shaft of a rotating drive device, a paint supply passage connected to the proximal end of the spraying head, and a paint radiating portion formed at the distal end of the spraying head to thereby spray paint particles from the paint radiating portion. The apparatus is provided with a partition member which is disposed around the outer periphery of the spraying head in opposing relation to the latter, and at least a pair of air outlet ports which are disposed in such a manner that air is jetted out forwardly from the air outlet ports toward the outer peripheral surface of the partition member. Thus, the direction of spray of paint particles from the paint radiating portion is controlled by means of the jetted air, and it is possible to obtain elliptical and dumbbell-shaped spray patterns which cannot be obtained by the conventional rotating spraying type coating apparatuses.

Abstract: A duty-cycle type electromagnetic injector assembly has a valve and cooperating valve seat with the valve being positioned away from or against the valve seat depending upon whether an associated electrical coil is energized; a housing generally contains the valve and valve seat; a guide closely confines the valve permitting the valve to be freely moved toward and away from the valve seat while constraining movement of the valve in other directions; and a fluid pressure regulator forming a portion of the injector assembly establishes both the static rate and dynamic rate of liquid flow metered by the injector assembly.

Abstract: An apparatus for dispensing viscous fluid material having one-piece nozzles which produce a supply of drops of fluid material. The nozzles each include a nozzle body having a first end and a dispensing end. A gas flow path through the nozzle body has an array of outlet sections which terminate at the dispensing end of the nozzle body. The inlet section of the gas flow path is a cylindrical bore which feeds a stream of gas to each of the outlet sections. A plurality of viscous fluid material passageways closely surround the outlet sections of the gas flow path. As a stream of material is discharged from each material passageway, the expansion of gas emerging from the gas outlet sections breaks up the flowing material, thereby applying the material in a spray of droplets even though both the gas flow and material flow are continuous. The first ends of nozzles are attached to an elongated dispensing bar of an applicator.

Abstract: In a rotary irrigation mini-sprinkler of the kind comprising a housing having a housing inlet and a housing outlet and, intermediate thereof, a differential pressure control means responsive to variations in the pressure differential between the inlet and outlet and including a throughflow path serving to communicate with said housing inlet and outlet, the throughflow dimensions of the path varying in accordance with the differential, the improvement wherein the housing outlet includes an outflow port in direct communication with the path and having a non-circular cross-sectional shape such as to reduce substantially the velocity of water entering the port from the path and thereby ensuring that the water fully occupies the port.

Abstract: A rotary atomizer includes a generally circular integrated fan/cone assembly coupled to an hydraulic motor to effect the rotation thereof. The hydraulic motor is positioned upon and extends through a generally circular fixed shroud which is downwardly divergent and includes a center hub with air intake apertures. The integrated fan/cone assembly is positioned immediately below and within the shroud and further includes a disc-shaped base on the upper surface of which are disposed a plurality of spaced curvilinear blades and within the center portion thereof is located a truncated cone having an upper center hub and a plurality of spaced radial grooves around the lower inner surface thereof. Each of the grooves is defined by a pair of spaced, tapered ribs each of which, in turn, terminates in a respective generally rectangular tooth which extends downward from and beyond the lower lip of the cone.

Abstract: The disclosure relates to a method for making artificial snow involving the induction of compressed air into an annular disposed chamber and through a multitude of circumferentially and longitudinally spaced, radially inward directed orifices to be mixed with a steady stream of water. The mixture is then forced through a multitude of longitudinal directed orifices, where a substantial pressure drop subsequent to egress from the orifices causes a first stage atomization of the water into tiny, uniformly sized droplets and the concurrent pre-cooling of the droplets. The droplets are ten accelerated through an exit nozzle, where the final expansion of still partially compressed air to atmospheric pressure causes the final atomization, and the projecting of a thereby produced plume of water droplets through an trajectory within the cooler atmosphere along which the droplets are allowed to freeze into tiny, crystalline particles of ice before falling to the ground.

Abstract: An artificial snow making apparatus including a mechanism for changing artificial snow generated therein to wet snow which includes an apparatus for making artificial snow and a test chamber located therebelow for receiving the generated snow. An air channel is located within the test chamber and connected to the artificial snow generating mechanism. A blower sends air through the air channel for mixing with and carrying the generated snow along a flow path. A mechanism for supplying heated and humidified air to the air channel is disposed at a portion of the flow path which is downstream from where the generated snow is supplied to the air channel. A sample fitting frame is disposed in the air channel at a position downstream of the position along the air channel at which the heated and humidified air is supplied thereto.

Abstract: A paint color change system and method for sequentially supplying different color electrically conductive paints to an electrostatic applicator. Paint is supplied through a supply hose to a first isolated reservoir and the supply hose is purged and dried to form a voltage block. While paint is supplied through a first delivery hose from the first reservoir to an applicator, a second reservoir is cleaned, paint is supplied to the second reservoir through a supply hose, and the supply hose is purged of paint and dried to form a voltage block. Upon completion of coating with the first color paint, the first delivery hose is purged of paint and dried to form a voltage block and paint then is supplied from the second reservoir through a second delivery hose to the coating applicator. If the same color paint is applied from both reservoirs, the first delivery hose can be cleaned and dried after paint delivery from the second reservoir has started to permit continuous coating.

Abstract: A water-driven monitor is provided as a stand-by pre-aimed fire fighting device installed at a fixed location for fire protection of a structure or equipment, such as aircraft, in a hanger structure. The monitor is oscillated by providing a diversion of a minor flow of the water or water/foam to be discharged from the monitor, to reciprocate an annular piston in an annular cylinder in up and down directions. A pair of concentric barrel cams having helical cam tracks therein and a cam ring with attached cam rollers interconnect a fixed base assembly containing the piston and cylinder and a water or water/foam discharge assembly, such that linear piston motion includes oscillatory motion which is transferred to the discharge assembly. A four-way spool valve controls fluid flow to opposite sides of a piston head and a toggle action shuttle actuates the valve spool to reverse the piston movement and the direction of discharge tube oscillation.