Abstract: There is disclosed a nozzle apparatus for spraying a mixture of gas and liquid. The apparatus comprises a casing having therein a gas jetting nozzle member and a liquid chamber. The liquid flows out of the chamber in directions to cross at a predetermined angle with a direction in which the gas is jetted out of the nozzle member.

Abstract: An oxygen-fuel cutting torch having an easily manufactured preheat tube assembly assuring complete mixing of the oxygen and fuel, and minimizing the danger associated with flashback of the flame into the torch. The preheat tube assembly includes an outer tube, an inner tube, a mixer tube, and a nozzle fitting. The inner tube and mixer tube are joined together end to end by the nozzle fitting and are both positioned within the outer tube. A chamber is formed in the oxygen channel at the juncture of the nozzle fitting and the mixing tube for increasing the turbulence of the oxygen prior to mixing with the fuel and to attenuate the shock wave generated by flashbacks.

Abstract: A top feeding atomizer having a body, and in which the body has an open ended cutout portion at one end thereof and a chamber at the other end thereof. A plurality of longitudinally extending openings interconnect the cutout portion with the chamber. In addition, a plurality of longitudinally extending passageways interconnect the chamber with the outside of the one end of said body. Continued rotation of the body, while liquid is fed into the open end cutout portion, forces the liquid through the interconnecting openings into the chamber and from the chamber up the passageways and out the passageways in a fine globular spray.

Abstract: An oxygen-fuel cutting torch having an easily manufactured preheat tube assembly assuring complete mixing of the oxygen and fuel, and minimizing the danger associated with flashback of the flame into the torch. The preheat tube assembly includes an outer tube, an inner tube, a mixer tube, and a nozzle fitting. The inner tube and mixer tube are joined together end to end by the nozzle fitting and are both positioned within the outer tube. A chamber is formed in the oxygen channel at the juncture of the nozzle fitting and the mixing tube for increasing the turbulence of the oxygen prior to mixing with the fuel and to attenuate the shock wave generated by flashbacks.

Abstract: A water sprinkler device of the type having a reciprocating or oscillating sprinkler nozzle is provided comprising a novel fluid drive system for the nozzle movement. Water upstream from the spray nozzle is partially diverted to a piston chamber. Water entering the chamber moves a piston in reciprocating movement within the chamber. A rack is connected to the piston to move outside the chamber with the same reciprocating motion as the piston. The rack engages a gear associated with the sprinkler nozzle to impart oscillating rotational movement to the sprinkler nozzle as the rack moves in its reciprocating motion.

Abstract: The electrostatic nozzle may be used to spray one or more charged clouds in different areas of an enclosed room to allow different materials to be deposited on different sections of the surfaces. The nozzle includes a conduit through which air passes over one or more airfoils to entrain a liquid across the surface. A charged electrode, facing the surface, inductively charges the liquid on the surface. The liquid is atomized at the trailing edge of the airfoil by a cross-current created by an air deflector near the trailing edge of the airfoil.

Abstract: Discrimination apparatus for use in a fire and explosion detection and suppression system which includes plural detectors and suppression apparatus operated thereby and including apparatus for sensing detection by a first number of detectors within a predetermined time period and providing an output signal only when the first plurality of detectors detect within the predetermined time period and apparatus operative in response to the output signal for inhibiting operation of the suppression apparatus.

Abstract: Electrostatic spray coating system wherein the output voltage is maintained constant over the working range of the system and wherein the power is automatically interrupted whenever the load current exceeds a predetermined amount, as for example, about 120 microamperes.

Abstract: Apparatus in which water and liquid detergent meet in a venturi chamber to be commingled there, the detergent being drawn into the venturi by the condition of unbalanced (lowered) pressure there resulting from the velocity of the water flowing through the venturi throat. Compressed air is introduced into a nozzle in communication with the venturi, and the commingled water, detergent, and air are then discharged for use in the form of a foam. The water inlet includes a removable insert separate from the venturi, the upstream end of the insert being exposed for direct accessibility for a mounting tool, and an annular chamber located upstream from the discharge end of the venturi outlet initially receives the compressed air which is then caused to be discharged in an annular condition about the commingled detergent and water flow.

Abstract: A spray gun is disclosed intended alternatively for the application of plaster to walls, and the application of particulate finishing materials to the wet plaster. The gun has a hand held stock supporting a tubular housing, which receives at its front end interchangeable barrels having apertures in their side walls which can be brought into coincidence with an aperture in the housing communicating with a supply of material to be sprayed. One barrel has a handle so that it can be rotated in the housing to adjust the degree of coincidence between the openings and thus control release of particulate material into the barrel, while the other barrel is provided with a nozzle for the spraying of plaster. Compressed air for carrying out the spraying is admitted through an axial pipe connected to an external trigger.

Abstract: A spray gun nozzle including a threadably attached cap having a plurality of air passages therein, centered about an axial fluid passage and orifice, including an orifice locating disc affixed in the cap for precisely axially locating the fluid orifice relative to the axis of the air cap and for precisely defining an annular air passage surrounding the orifice. The method includes the steps of simultaneously making the orifice locating hole and the annular air passage in a single drilling operation.

Abstract: A reaction drive sprinkler, particularly of the large gun type, is provided with an improved drive assembly adapted for full- or part-circle rotation of the sprinkler in steps about the axis of a water supply standpipe. The sprinkler includes a relatively large and outwardly inclined range tube from which a relatively high energy water stream is projected a substantial distance for irrigation purposes. The drive assembly comprises a drive nozzle mounted on the range tube for bleed passage of a relatively low energy portion of the irrigation water supplied to the range tube and for directing this low energy stream into engagement with one of a pair of oppositely angled deflector spoons at the end of a counterbalanced and pivotally mounted reaction drive arm.

Abstract: A reaction drive sprinkler, particularly of the large gun type, is provided with an improved drive assembly adapted for full- or part-circle rotation of the sprinkler in steps about the axis of a water supply standpipe. The sprinkler includes a relatively large and outwardly inclined range tube from which a relatively high energy water stream is projected a substantial distance for irrigation purposes. The drive assembly comprises a drive nozzle mounted on the range tube for bleed passage of a relatively low energy portion of the irrigation water supplied to the range tube and for directing this low energy stream into engagement with one of a pair of oppositely angled deflector spoons at the end of a counterbalanced and pivotally mounted reaction drive arm.

Abstract: An improved method of and apparatus for making artificial snow. The snow making machine disclosed for practicing the invention includes a ducted fan for generating a substantially unidirectional, high volume air current over the area to be deposited with snow. High velocity water sprays are injected into the air current from above and below the air current via a plurality of nozzles connected to a annular water manifold circumferentially disposed around the output end of the fan duct. Nucleated ice crystals are also injected into the air current by a high velocity vapor spray emitted from a pair of seeder nozzles disposed at the center of the annular water manifold. The vapor spray is comprised of a mixture of water and compressed air which is vaporized in a venturi-type expansion chamber prior to emission through the seeder nozzles.

Abstract: A portable hand-held material broadcasting device having a housing with a manually engageable handle and providing a storage chamber for flowable granular material superimposed over a normally horizontally rotating impeller for gravitational flow of material from the chamber to the impeller, a valve member movable to regulate the material flow and having closed, intermediate and full open positions, a manually displaceable actuating member positioned adjacent the handle and having a connection to the valve member for displacement thereof, and a manually adjustable cam member for limiting the opening movement of the valve member and corresponding position of the actuating member for setting the rate of flow of the material, the improvement of the invention including a stop mounted on the handle and positioned to engage and support the actuating member when moved to its full open position, and a special connection being made between the actuator member and the valve member to permit forced displacement of the a

Abstract: A valve 10 for controlling the flow of propulsive fluid, for use for example in the reaction control system of a VTOL aircraft includes a generally muff-shaped manifold member 15, a hollow piston member 21, and a propulsive jet outlet 16. The manifold member 15 includes an inlet 17 and a cylindrical inner wall 18 itself defining a bore, and together with jet outlet 16 defining an annular port 19. The piston member 21 is slidably housed in the bore for movement between a position in which the port 19 is open to allow propulsive fluid to pass through the manifold to jet outlet 16 and a position in which the port is closed. Movement of the hollow piston member may be effected by fluid operated jack arrangement 25 housed at least partially within the piston.

Abstract: An apparatus (10) for distributing a substance (18) from a container (16) among a plurality of delivery channels (22) is disclosed. Apparatus (10) includes an auger (20) for moving a stream of substance (18) upwardly for outward centrifugal deflection by paddles (44) into a plurality of distributor pockets (60). Substance (18) which impacts and is retained in distributor pocket areas falls gravitationally into delivery tubes (22) for subsequent movement by pressurized air to outputs (26).

Abstract: Apparatus for effecting controlled and accurate moistening of an object is described. A hollow rotor is provided with at least one shaped portion in its surface, that portion having a row of nozzles therein. The nozzles are drilled completely through the rotor sidewall so that they comprise a conduit between the rotor's center and the outer surface of the rotor. An apertured plate and shutter plate are movably mounted between an object to be coated and the rotor. Fluid is delivered to the center of the rotor from a supply thereof by means of an inlet tube. The rotor is coupled at its other end, which is sealed to prevent fluid escape, to a motor and driven thereby to eject fluid from the nozzles, aided by the vacuum effect of the shaped rotor portion. Only that fluid escaping through the exposed section of the slot in the apertured plate strikes and thereby coats the object to be moistened.

Abstract: Lawn sprinkler incorporating a novel water distributing head having a "wobbling" motion. The base of the head is mounted loosely between shoulders near the end of a tubular water-supplying support arm. A water jet emerging from a nozzle at the end of the arm strikes internal vanes at the discharge end of the distributor head to cause the wobbling action. The support arm is journaled within a vertical bearing, and the action of the water jet causes the arm to be driven slowly through a circular path.

Abstract: A fuel injection nozzle for internal combustion engines, provided with a valve needle and an induction coil, which sits in a spacer plate mounted between the nozzle body and the nozzle holder. The valve needle projects into the induction coil and acts upon the magnetic domain of the induction coil by the action of its movement, whereby a signal dependent on the velocity of the needle is produced. The induction coil is provided with laterally disposed contact prongs which are connected with extended connecting wires by means of a weld or solder joint. The connecting wires lead through boreholes in the nozzle holder. The injection nozzle is distinguished by an especially small electrical line resistance, and by the fact that, with appropriate dimensioning and construction of the ends of the connecting wires, which carry the extended connection contacts, there will be no special contact measures necessary for disassembly.