Abstract: A dry bay (4) in an aircraft wing (2) is filled with a large number of relatively small, preferably spherical, containers (12). Sealed inside each container (12) is a noncorrosive gaseous fire extinguishant (14). A number of containers (12) are opened by being broken by an impact force or melted or burst by the heat of a fire. Extinguishant (14) is released from the opened containers (12) to suppress a fire. The packing density of containers (12) in dry bay (4) may be varied by varying the size and/or shape of containers (12). Containers (12) may be introduced into dry bay (4) by pressure injection or by gravity. Containers (12) may be removed from dry bay (4) to allow maintenance and repair activities by allowing containers (12) to drop out of dry bay (4) into a suitable receptacle or by drawing containers (12) out of dry bay (4) with a vacuum powered device.

Abstract: A sprinkler comprises a nozzle and a distributor head mounted for both rotary and lateral movements with respect to the nozzle. The distributor head has two passageways formed such that when it receives the water jet in one or the other passageway, it directs the jet outwardly of the distributor head with the water applying a force tending to rotate the distributor head in one or the other direction. The sprinkler further includes an abutment, a first stop engageable by the abutment when the distributor head is rotated in the one direction by the flow of water through the first passageway to move the distributor head laterally of the nozzle to align its second passageway with the nozzle, and a second stop engageable by the abutment when the distributor head is rotated in the opposite direction by the flow of water through the second passageway to move the distributor head laterally of the nozzle to align its first passageway with the nozzle.

Abstract: An agricultural spray device comprising rotationally reciprocating spray heads moving in opposite directions relative to one another, provides for delivery of a liquid spray in a uniform pattern with little or no drift from the target zone. The spray heads which each carry one or more spray nozzles are set in rotationally reciprocating motion by eccentric drive connections from a common rotating drive. The spray nozzles are fed from a remote liquid supply tank through a liquid distribution system in which all joints between component parts are fixed relative to each other to eliminate the need for liquid seals between parts which move relative to one another.

Abstract: A multiple high pressure liquid nozzled gun system and flow controller therefor. The flow controller permits the connection of two guns and allows activation or de-activation of one gun without affecting the other gun. The flow controller has multiple internal channels which re-direct liquid flow upon activation or de-activation of a gun. The flow controller has high pressure channels through which liquid under high pressure flows to the gun nozzles and alternate channels through which liquid may flow when the guns are in a trigger-released or "dump" mode permitting liquid to flow through the controller, to the gun, and out of the gun's dump port.

Abstract: The airblast fuel injector capable of accommodating high fuel temperature at the injector tip without deleterious fuel vaporization problems and resultant combustion instability in a gas turbine engine includes an annular spring valve mounted on an annular shoulder of an inner injector body forming an inner air chamber with the valve having a cantilever valve head for controlling fuel flow from a fuel swirling orifice in the shoulder near the injector tip. The spring bias of the cantilever valve head is adjusted by lapping the valve head prior to fastening the spring valve to the inner injector body and before the inner injector body is assembled within an outer injector body having means forming an outer annual fuel chamber and air chamber.

Abstract: A two dimensional exhaust nozzle for a gas turbine engine having reverse thrust capability includes a pair of spaced apart converging flaps which are able to rotate about their respective axes until their downstream edges meet along the engine centerline to block the flow of gases through the engine and to redirect the flow through fixed area reverser outlet ports. The axes about which each convergent flap rotates are spaced inwardly from their respective convergent flap surfaces. The flaps themselves cover the outlet ports when the flaps are in forward thrust operating positions. The flaps move away from and unblock the outlets as they rotate to their reverse thrust position. The distance between the flap axis and its convergent surface is critical to being able to use short flaps while obtaining large reverser outlet areas.

Abstract: A portable electrostatic spray gun for liquid and/or pulverulent materials has a body with a grip and a second portion which carries a detachable barrel and has an inlet for admission of material to be sprayed. The rear side of the grip has a socket for a first unit of the high-voltage generator. A second unit of the generator is installed in a chamber provided in the second portion of the body and being accessible upon separation of the second portion from the grip. The grip contains a proximity switch which is actuatable by the trigger and can be deactivated by rotating it in the grip. The first unit of the generator has a transformer and an oscillator connected to a low-voltage input, and the second unit has a voltage multiplier connected with two high-voltage electrodes, one in the inlet and the other in an air admitting channel which is provided in the second portion of the body and includes a passage in the second unit of the generator.

Abstract: Apparatus for making snow using pressurized water and air wherein a housing is implanted into the earth at a selected location on a ski slope and connected to underground lines for supplying water and air thereto. An elongated extendable bichamberal spray head is slidingly mounted within the housing such that the introduction of pressurized air to the outer chamber of bichamberal spray head via the housing causes the spray head to rise to a predetermined elevation. Introduction of water to inner chamber of the spray head generates snow when the pressurized water is discharged to the atmosphere through the pressurized air. The spray head is stored within the housing when not in use to eliminate any hazard to skiers and the labor required to utilize a portable snowgun.

Abstract: A device for atomizing a liquid is disclosed. The device is mounted to a frame and is plumbed for fluid communication with an air source and a liquid source. The device includes a grommet with a passage therein for receiving a substantially symmetrical foil. The foil includes a flow dividing mechanism for aiding in mixing the air and liquid fluids.

Abstract: A spray gun has a housing with a piston chamber formed therein. A piston is movable within the piston chamber. One or more control rods connect to the piston and move in conjunction with the piston. The piston has a gas passageway in it. The gas passageway has a mouth which fits against a piston sealing member to control the flow of gas through the passageway. Each of the control rods includes a gas channel through the control rod extending from one end of the control rod to the other end of the control rod. Each of the control rods is associated with a spray component cavity with one of the ends of the respective control rods fitting in to a spray component seat within the component cavity. Movement of the control rod with respect to the seat serves as a valve for the spray component within the particular component cavity.

Abstract: A reversible fragrance emitting unit adapted to rest on a flat surface in either an upright or an upside down position, no fragrance being emitted in one position and fragrance being emitted in the other position, so that a switching action is effected simply by reversing the unit. The unit consists of a vented cylindrical shell closed at its upper end by a cover plate and at its lower end by a bottom wall. Disposed within the shell and secured to the cover plate is an absorbent pad. Joined to the pad is the leading end of a series of interhinged absorbent elements in an accordian formation, the trailing end of the series being joined to a weight whereby when the unit is upside down, the accordian is collapsed on the bottom wall and compressed by the overlying weight, and when the unit is reversed in position and is made upright, the weight drops to the bottom wall, thereby expanding the accordian.

Abstract: A snow generating and snowfall apparatus has a snowfall chamber having in a top wall thereof an opening, a vertically extending cooling tower having the bottom mounted on the top wall and surrounding the opening, a air first cooler connected to the tower for cooling the air in the tower, an inner cylinder positioned in the cooling tower and extending in the lengthwise direction thereof and having a bottom end opening connected to the opening in the top wall, a circulating passage connecting the top end of the inner cylinder and a lower end portion thereof to each other, a variable speed blower in an intermediate portion of the circulating passage, a humidifier connected to the lower portion of the inner cylinder for feeding water vapor into the inner cylinder in the vicinity of the lower end thereof, and a snow generating material feeder connected to the inner cylinder in the vicinity of the humidifer for feeding a snow-generating material consisting of ice crystals into the inner cylinder.

Abstract: A process and apparatus is disclosed comprising a high-speed rotation bell for applying quick-evaporating fluids, such as quick-evaporating liquid paint, wherein the impact deposition of largely evaporated paint particles on the high-speed rotation bell is prevented by affecting the flight path of the paint particles flying back in the zone of the toroidal vortex toward the high-speed rotation bell with electric or magnetic or aerodynamic forces or combinations of these forces.

Abstract: A hydrotherapy fitting assembly is provided, featuring: an axial nozzle socket and a nozzle therein, receiving an axial flow of water and air, and projecting them in admixture from the housing as a jet stream; the nozzle comprising two pieces threadably and fixedly linked together for pivoting and rotating movement together in the socket; a cylindrical housing piece defining a central chamber; a cylindrical plug valve piece having an axial water inlet at one end an axial water outlet at the other end, threadably mounted in the control chamber, and movable axially on the threads in the central chamber of the cylindrical housing between limiting positions extending across and closing off the side water inlets, and fully exposing and opening the side water inlets, with intermediate positions partially exposing and opening the side water inlets; and leaving the air inlet exposed and open in both limiting positions of the valve; and constraining water flow therethrough first in an axial direction, then in a direct

Abstract: A propulsion nozzle of a gas turbine engine comprising two mutually confronting spaced fixed side walls 14, 16 and two upper and lower mutually confronting spaced movable walls 20, 22 which locate and move in trackways 18 in the side walls. The movable walls 20, 22 each comprise a plurality of pivotally interconnected members which extend transverse to the fixed walls to define a convergent part and throat of the nozzle.A flap 28 is pivotally connected at its upstream end to a downstream end of one of the movable walls 20(b) and is operable, in at least one mode of operation, to cooperate with the fixed walls to define a divergent expansion ramp downstream of the throat of nozzle. In a first mode of operation, the movable walls 20, 22 can be moved along the trackway 18 to cause the members to define a con-di nozzle facing rearwards to produce forward thrust.

Abstract: An electrostatic spray system including a spray device having an electrode for electrostatically charging coating particles emitted from the spray device toward an article to be coated, a high voltage electrostatic supply, and a high voltage insulated electrical cable interconnecting the electrostatic supply and the spray device electrode. The high voltage cable includes a fibrous resistive core, preferably fabricated from silicon carbide fibers, a fiber-restraining layer of insulative thread tightly wrapped spirally around the entirety of the core to prevent fiber ends from projecting outwardly from the core, an outer dielectric sheath, and an intermediate sheath sandwiched between the spirally wound inner fiber-restraining layer and the outer dielectric sheath and having a resistivity lying between that of the inner resistive fiber core and the outer dielectric sheath.

Abstract: A hydraulically operated decoking tool capable of performing both boring and cutting operations with a simplified changeover between the operations that does not require removal of the tool from a coke bed is disclosed. The tool includes a body fabricated of durable material capable of withstanding the harsh environment in which it is used. Boring nozzles for boring a pilot hole in a coke bed and cutting nozzles for cutting up the coke for removal are provided on the tool. A coke bed is bored and cut by high pressure working fluid directed through the nozzles in a predetermined sequence. In the normal sequence, the boring operation is performed first followed by the cutting operation. The sequence of operations is controlled by a working fluid actuated shuttle sleeve or valve reciprocally mounted in the tool body. The sleeve is reciprocated by working fluid pressure moving from a first position corresponding to the boring operation to a second position corresponding to the cutting operation.

Abstract: Disclosed herein is an automatic shut off valve for a sprinkler system which closes the water flow path whenever a sprinkler head becomes dislodged from a riser pipe. The shut off valve includes a valve seat and a valve element. The valve element is attached to the stem of a valve assembly, which further includes a flange positioned in the water flow path. The valve element assembly is held away from the valve seat by a coil spring into which the stem of the valve assembly extends. The stem further includes a plurality of openings to allow water flow into the center of the flange and out through openings in the stem and thereafter through the center of the valve seat. The spring is calibrated in length and compression such that, during normal water flow with a head attached, the spring is not sufficiently compressed to allow the valve element to contact the valve seat.

Abstract: Two or more liquids are mixed continuously in very short times and in a highly uniform manner. Thin sheets of the liquids to be mixed are formed and contacted to produce a new mixed sheet. The newly formed mixed sheet is highly turbulent which substantially enhances mixing. Since the contacting of the liquids occurs on a scale of microns of thickness, mixing is not only rapid but complete and extremely uniform as well. Turbulence within the mixed sheet that further enhances mixing allows for mixing times as low as 0.1 millisecond, depending on flowrate and pressure drop, for low viscosity fluids.

Abstract: Generator for producing aerosols from liquids including an atomizer mounted in a vessel which is provided with an aerosol outlet. The outlet of the vessel is connected to an ejector operated by a gaseous driving agent. The atomizer is assembled from a plurality of vertically spaced rings with annular liquid outlets, a supply of compressed gas is discharged across the outlets causing the liquid to be drawn upwardly through the outlets.