Abstract: An exhaust nozzle for a gas turbine engine including a plurality of primary and secondary flaps which are pivotally positionable for varying the geometry of the nozzle and for providing thrust vectoring. Electromechanical actuators preferably are used to position the flaps. The inner surfaces of the primary flaps are preferably curved convexly to continually maintain the location of the nozzle throat on the primary flaps. Reverser doors can be added to permit thrust reversal and fairing flaps can be included outwardly of the primary and secondary flaps to maintain a smooth, aerodynamic flow.

Abstract: Semi-insulating granular bed material in a spout inlet region of a spouted bed vessel between a draft tube and a portion of the vessel base section adjacent a fluid inlet is aligned along the force lines of an imposed localized electric field to thereby afford improved control over spout inlet conditions which affect processes carried out in the spouted bed device.

Abstract: Silo discharge chute forming means, or a silo including such means fixed astride an upright slot opening in its wall. The discharge chute is comprised of a vertically disposed series of doors, each larger than the silo opening but vertically segmented so that each segment can be individually removed through the opening to erect or disassemble the discharge chute. The means for attaching the doors to the silo and supporting the same are suitably attached to the silo wall and can include ladder means to provide access to the top and interior portions of the silo through the usual exterior chute thereof.

Abstract: A fuel injector 10 includes a housing 12 which mounts a valve 56 closing off orifice 22 at one end of a fuel chamber 20 bounded at an opposite end by a piston 18 which is controlled by a tubular armature 16. The tubular armature 16 fits within an annular gap 40 without the housing 12 and is actuated by a coil 14. A pressure compensation vent 78 is in communication with a section 50 at the upper side of piston 18 to partially compensate for chamber combustion pressures which exert a closing force on valve 56. Energizing of the drive coil 14 moves the armature 16 which in turn moves the piston 18 downward which displaces fuel within the fuel chamber 20 which opens the valve 56 allowing fuel to pass through orifice 22.

Abstract: An inlet duct of generally rectangular configuration for supersonic aircraft in which a normal shock is produced in close proximity to the forward lip of the lower duct wall, and in which variable area sideplate openings are provided just upstream of the normal shock to achieve boundary layer control for the normal shock-boundary layer interaction during on-design operation and increasing flow area for spillage as the normal shock is moved forward during off-design operation.

Abstract: The bulk material receiver and dispenser includes a hopper with a lower material outlet opening and an upper material and air inlet opening. The upper portion or "bonnet" of the hopper includes a pair of air passageways with a filter in each passageway, and a vacuum pump and valve are connected to the air passageways. When placed in operation, the vacuum pump induces a flow of air inwardly through one air passageway and out of the other passageway to back wash one of the air filters, and after a short time lapse, air is drawn through both air passageways to induce a flow of bulk material and air into the hopper. When a desired amount of bulk material has accumulated in the hopper, the other air passageway and filter are opened to the atmosphere and a stream of air from the atmosphere back washes the other filter.

Abstract: Ring gap nozzle for distributing a fluid medium over a plate, comprising an axial channel passing through the plate, a cap which covers the channel, leaving a ring gap between it and the plate, and a connecting member extending coaxially through the channel for holding the cap in place. A wall which defines a rotationally symmetrical flow space extends from the connecting member to the outlet edge of the totally free ring gap. The annular flow space comprises a region of the channel, of a deflection space and of the ring gap. All the walls which bound it are arranged so that, starting at least in the deflection space, the flooded area of cross section of the annular flow space decreases continuously in the direction of the flow of medium towards the outlet edge of the ring gap.

Abstract: An automatic grain distributor for interfacing between a grain elevator discharge fitting and a plurality of remote delivery locations includes a grain distributor housing which is coupled by a grain inlet to the elevator discharging fitting and an inner spout which is disposed within the grain distributor housing and couples the grain inlet to a selected one of the grain delivery apertures. Movement of this inner spout from one grain delivery aperture to another grain delivery aperture is accomplished by means of an electromechanical mechanism which includes an eccentric plate and follower as well as a geneva-style mechanism. A gearmotor and clutch arrangement are coupled to the eccentric plate so as to provide a single revolution to the plate with each energizing command to the motor. As the eccentric plate makes a single revolution, it drives a follower which raises the inner spout to a slightly elevated position above its corresponding grain delivery aperture.

Abstract: A pneumatic conveying pipe extending through fine-grained material in a psurized storage tank and having ports in its side wall through which fine-grained material is forced by pressure in the storage tank. After being forced through the ports, the fine-grained material is conveyed along the pipe by an airstream. An annular valve abuts the inner periphery of the conveying pipe and is movable along the axis of the pipe from a position where it covers the ports to a position where the ports are exposed.

Abstract: Air actuated conveyor for containers using air jets and utilizing the containers as valving means while providing a positive air pressure therebetween to maintain the containers separated during conveyance. The single container speed within the conveyor and the speed of the serially configured container train are selectively controllable essentially independent one from the other.

Abstract: A valve assembly including an adjustable nozzle for directing an aimed thin stream of water soluble coolant to a machining cutter. The construction includes an elongated body which houses a valve, the nozzle in adjustable relation, and means for magnetically supporting the assembly upon a machine tool. The nozzle may be fed directly from a pump, or through a foot operated valve in series therewith. The valve is of thumbscrew type and includes a spherical ball which presses against a segment of flexible tubing passing through the valve body to obstruct the lumen of the tube without damage.

Abstract: A compact aerosol generator which produces, with a fresh air propellant, microscopically small liquid particles known as a dry aerosol particularly adapted for inhalation therapy has a cylindrical housing with a liquid container and a casing containing a baffling system. An air chamber and a manually operated liquid spray pump are defined by telescoping tubes in the housing. Liquid spray ejected from a nozzle at the outlet of the pump enters a jet tube which forms a venturi with a baffle adjacent the nozzle. Passages having their axes perpendicular to the axis of the nozzle provide communication between the air chamber and the jet tube in the vicinity of the outlet of the nozzle. When the telescoping tubes of the pump and air chamber enter each other, pressurized liquid spray and injected air, which is pressurized in this air chamber, flow and combine to efficiently form a spray which is atomized in the baffling system to provide the dry aerosol at the output of the generator.

Abstract: Control over the direction and inclination of a charge distribution chute within a blast furnace is accomplished with a compact and reliable drive mechanism. The drive mechanism includes a rigid control rod for varying chute inclination angle and a gear drive which translates angular position commands in the form of rotation about a vertical axis to reciprocation of the control rod. The control rod and its gear drive rotate with the chute while simultaneously varying the inclination angle.

Abstract: A portable device for collecting particulate gold bearing material from rock crevices and the like which include a gas engine driven air blower having shoulder straps for mounting on the back of a user, the air blower being connected by a flexible duct to an elongated flexible conduit having a nozzle or crevice tool connected to the conduit front end, a container having an air outlet connected to the rear end of the conduit and adapted to be dragged along on the ground, the duct having an outlet end connected to the conduit in communication with the conduit central passage so that the air blown into the conduit from the blower provides a jet pump action to suck particulate material into the nozzle, through the conduit central passage and into the container for collection with air being discharged through the container air outlet together with a deflector within the conduit central passage for radially deflecting the stream of particulate material flowing within the conduit central passage.

Abstract: An in-line emitter unit comprising a tubular connector member having end portions adapted to connect together two successive lengths of irrigation conduit, a well structure formed integrally with an outer wall portion of the connector member, an inlet formed in said outer wall portion serving to effect communication between the interior of the tubular connector and the well structure, a cover member for the well structure, an elongated groove formed in an inner wall of the cover member, a recessed cavity formed in said inner wall and communicating with one end of the groove and being of extended dimensions as compared with the width of the groove, an outlet bore constituting a unit outlet and formed coaxially in a base portion of the cavity and having a rim area substantially less than that of the cavity, a resiliently flexible membrane located in the well structure and juxtaposed with respect to the inner wall so as to define with said groove a flow restricting flowpath, a second and opposite end of the groo

Abstract: A profiled upright side support rail for supporting rollers for rotation about transverse axes suitably spaced apart in the longitudinal direction of a conveyor system is generally L-shaped in cross section and is elevated in spaced relationship to a base by leg angles. The rail includes a generally inwardly extending flange and a generally upwardly extending web portion angularly formed with the flange. The web portion of the rail is generally Y-shaped in cross section and includes a side member, at least three planar sections each provided in a different generally vertical plane, an inwardly projecting shoulder section, and an inwardly extending oblique section. An upper section of the web includes a plurality of upwardly opening notches for supporting the rollers, the notches being spaced apart longitudinally along the upper section by distances equal to desired spacing between the transverse axes of the rollers.

Abstract: This disclosure relates to a discharge chute for granular material which is associated with an apparatus wherein the apparatus is vibrated with the vibrations also being imparted to the discharge chute. It has been found that in such instances, the capacity of the discharge chute may be greatly increased by providing more than one sloping wall while at the same time not increasing the overall height of the discharge chute. Further, when the angle of the sloping wall above the sloping bottom wall is increased, the capacity of that wall is greatly increased.

Abstract: A fuel injection valve assembly is provided for use in a reciprocating gas engine. The valve assembly comprises a valve cage, a replaceable valve cartridge, a keeper ring, and an external spring. The valve cartridge is replaceable without the necessity of removing the valve cage from the engine.

Abstract: The invention relates to a water feeding head suitable for the water supply f row crops, first of all vineyards and orchards. Its use enables the drop feed type irrigation of loose soils so far unsolved.The water feeding head is assembled from two parts, i.e. from the body releasably connected e.g. with thread to the pipeline and from the replaceable nozzle fitted to the body. The nozzle is provided with one or several orifices discharging the water by drop feed method, and the heads are arranged along the pipeline at a distance from each other in accordance with the transmissivity of the soil.

Abstract: A gas turbine fuel injection nozzle is disclosed in which the secondary fuel is spread into a very thin film entirely within a region of low air momentum. The fuel is therefore not affected by turbulence, and this results in an evenly circumferentially distributed fuel film at the discharge orifice of the nozzle resulting in an even and extremely fine spray of fuel to enhance proper engine performance.