Abstract: A spray cultivator having a frame with unequal rigid side elements pivotally connects to define between pivots a parallelogram with opposite sides equal and parallel. The frame is fixed by a first side element to a lift bar of a prime mover for pulling the cultivator over level and non-level fields. The remaining three side elements comprise the remaining parallelogram sides and the free ends thereof extending downwardly and rearwardly beyond the pivotal connections of the parallelogram. A second side free end engages level and non-level field surfaces with a sliding shoe. A third side free end that is parallel to the fixed first side element supports a spray pipe and nozzle that is continuously perpendicular to a field's level and non-level surfaces at a constant height thereabove responsive to the field surface engagement and pivotal parallelogram connections of the frame side elements.

Abstract: A fuel injection apparatus for a diesel engine comprising a holder body having an accumulator chamber and a spring chamber, a nozzle body detachably connected to the holder body, the nozzle body having formed therein a stepped longitudinal bore, a pressure chamber intermediate the stepped longitudinal bore and an injection orifice communicating with the longitudinal bore, a check valve disposed in a passage communicating a fuel injection pump with the accumulator chamber, a solenoid-operated spool valve mounted in the accumulator chamber, a communication passage having an upper end selectively connectible with the accumulator chamber through the spool valve and a lower end being in constant communication with the pressure chamber, a needle valve fitted in the stepped longitudinal bore and movable therein, and a spring accommodated in the spring chamber for biasing the needle valve toward closing the injection orifice.

Abstract: In a high pressure fluid system for providing fluid to a hand held nozzle, an improved power assisted dump valve which may be remotely located and controlled. The dump valve includes a stepped piston positioned in a stepped bore with one end of the piston adapted for sealing off a pressure relief outlet. A fluid conduit, preferably a passageway through the piston, conducts high pressure fluid to the valve chamber at the large diameter end of the piston. A control valve either seals off the large diameter end of the chamber or vents it to ambient pressure so that differential pressure supplied by the working fluid itself drives the valve piston to its open or closed positions. An electrical, hydraulic, or mechanical actuator operates the control valve, remotely if desired, to control the flow of high pressure fluid to the nozzle.

Abstract: An unfoldable divergent nozzle for a rocket engine comprises a set of elementary individual panels of a refractory material articulated together and with respect to a fixed upstream portion of the divergent nozzle in the vicinity of the neck of the nozzle. The articulations between two adjacent panels arranged to be folded on one another with their inner surfaces facing one another; each comprise at least one hinge with two axles inserted in the walls of the two panels articulated to one another, and held at a constant distance from one another by a link set back with respect to the thickness of the panel. Two adjacent panels have in the vicinity of a hinge two cylindrical surfaces respectively centered on each of the axles and rollable without sliding on one another.

Abstract: An agricultural sprayer, particulary effective for use in orange groves or orchards utilizes a high velocity, high volume axial flow fan which directs air through a plenum chamber in which the air is divided to flow towards opposed lateral openings at the sides of the sprayer. The sprayer is provided with an oscillator for directing the flow of air so that the air flow varies from a substantially downward direction to a substantially upwards direction during the spraying operation. The axial flow fan is mounted relatively high with respect to the ground to avoid the pick up of debris and the like.

Abstract: A grain distributor assembly for a grain elevator which includes a manifold plate having a plurality of discharge openings connected to respective downspouts. A distributor elbow having an inlet at its upper end coaxial with the central axis, and an offset outlet at its lower end, is arranged to discharge into any one of the discharge openings. Mounted below the elbow and swingable with it is a closure disc seated upon the manifold plate and having a single window therein providing passage for the lower end of the elbow. The remainder of the disc seats upon and closes off the inactive, non-registering ones of the discharge openings. A selector is provided for swinging the closure disc and elbow in unison about the central axis for positioning the elbow and window in angular register with a selected one of the discharge openings while maintaining all the other such openings securely covered.

Abstract: An electronic differential speed control circuit for driving the inboard and outboard A.C. wheel motors at different relative speeds depending upon the steering angle during a turn. An electrical circuit for sensing the torque of the tractor's wheel motors to maintain a constant implement draft. A hollow tubular axle pivots around the tractor's longitudinal material-transferring tunnel to conserve space and permit mounting of the wheel motors within the axle. The tunnel has two material-transferring compartments or passageways, and has vertically movable extensions on either end to facilitate coupling to accessories. An electrical power outlet is provided for energizing non-motor driven accessories.

Abstract: A gravity chuting system having track sections in the form of thin, upright, spring tempered steel rails on which a plurality of rollers are mounted to provide a supporting and conveying surface for workpieces. Similar spring tempered retaining rails on the track sections extend downwardly toward the workpiece supporting rollers and are adjustable vertically relative to the rollers by means of vertically elongated slots.

Abstract: An air table system which utilizes air jet openings in the table surface of a pattern configuration to lift, support and direct movement of containers to feed same from a plurality of sources to fewer destinations or vice versa. With suitable cover configuration, partially closed and open covers, movement of the containers around or to one side of blockades to accomplish controlled movement of the containers is made possible.

Abstract: Rollers are provided for roller conveyors. The roller comprises a sleeve body receiving roller bearings in the ends thereof, the bearings receiving a spindle. One race of each bearing supports the sleeve body, whilst the other has a bore engaged by the spindle. The engagement between the said bore and spindle is by means of a flexible seal so that the bearing can slide relative to the spindle in an axial direction, but the seal prevents flow of water along the spindle. There may be a single spindle extending through both bearings of each roller, or there may be two stub axles, one for each bearing. The races of the bearings are preferably of plastics material.

Abstract: A chute-hose coupler unit includes a first coupler and a second coupler each adapted to be detachably connected to ends of the respective chute-hoses, each coupler including a leaf spring which has a stop pin provided in its free flexible portion, and additionally including a cam means adapted to slide under the leaf spring of the mating coupler, the stop pin having a tendency of being inserted into the chute-hoses under the urge of the leaf springs, thereby blocking the component parts in the chute-hoses against dropping out of the open ends of the couplers when the couplers are disconnected from each other.

Abstract: An aggregate feed chute for an asphalt plant includes a diverter wall which may be selectively actuated to capture the entire discharge stream of a material conveyor for sampling purposes without the necessity of moving the feed chute with respect to the drum mixer or the conveyor.

Abstract: An emitter of very small size connects to a water supply tube by a hollow shank which conducts water to an interior chamber in the emitter housing. Between the chamber and an outlet in the housing the water flow is throttled through an elongated channel having both a wide shallow profile and a narrow steep profile. A free floating (within limits) resilient wafer covers the channel. At initial, very low water pressure at start-up, the wafer does not flex into the channel, thereby affording maximum flow to purge the emitter of unwanted dirt particles and the like. At relatively low operating pressure the wafer flexes into the wide shallow portion of the channel, reducing the flow to a predetermined amount, such as one gallon per hour. At relatively high pressure the wafer flexes further, intruding into the narrow steep slot, thereby compensating for the increased pressure and maintaining fluid flow at said predetermined rate.

Abstract: A fuel injection nozzle is proposed having a valve needle which opens in the direction of fuel flow and a throttle point controlled in accordance with the stroke of the valve needle which is loaded by at least two closing springs, in order to obtain a distinct pressure jump with respect to the required opening pressure when the throttle point is rendered ineffective. As a result, the throttle point is fully effective during idling and at relatively low partial loads and is only rendered ineffective when the supply of fuel is relatively great.

Abstract: A spray head for use with conventional air-atomizing spray equipment is disclosed which has spray-forming means that includes a secondary atomization annulus which provides improved atomization of liquid materials and which is especially suitable for spray devices having electrostatic induction charging means. The secondry annulus minimizes deposition on the spray head of particles electrically charged with a polarity opposite that of components of the spray head and provides re-atomization of sprayable material which collects on the walls of the nozzle.

Abstract: A three-part valve means is used in an electromagnetic fuel injector to control fuel flow out through a metering orifice, defined by the valve means in an open position relative to an associated valve seat, to an injector discharge orifice located closely downstream of the metering orifice. The three-part valve means includes a valve member provided with a flat surface on one end thereof and a semi-spherical seating surface at its opposite end for seating engagement with the valve seat; a movable armature having a flat at one end thereof for abutment against the flat surface of the valve member; and, a valve retainer operatively connected to the armature for supporting the valve member with its flat surface in abutment against the flat of the armature for movement therewith, the valve retainer permitting the flat surface of the valve member to move transversely relative to the flat of the armature.

Abstract: The velocity of grain falling in an inclined conduit is prevented from attaining a damaging rate by a variable accumulator and gate. The apparatus is responsive to the volumetric rate of flow of the grain, to accumulate and accommodate surges in the rate of flow of the falling stream. A densified discharge stream is established, with lower dust emission upon discharge.

Abstract: A thrust reverser for a fan jet engine. The engine has a primary nozzle for the rearward passage of primary gases and a fan associated therewith. An aerodynamically streamlined cowl surrounds the fan and is spaced from the primary nozzle. Space therebetween forming a fan nozzle for the passage of fan gases. The cowl has a fixed forward section and a translatable aft portion. Stowed the aft section abuts the forward section and forms a continuous inner and outer flow surface and when translated rearward to a deployed position an opening is formed between the sections. A pair of blocker doors are each rotatably connected to the forward cowl section through a pair of longitudinally translatable pivots. The pivots are normally biased in a forward position by a biasing spring. Links are pivotably attached between the blocker doors and the aft cowl section.

Abstract: An all purpose mobile scouring machine includes a rolling carriage on which is arranged at least one slider carrying a battery of nozzles parallel to one another supplied with fluid under high pressure. The slider is arranged to be driven with continuous to-and-fro movement on a horizontal axle transverse to the carriage, this movement being effected on each side of a median position and driven by a suitable motor. The machine includes at least one nozzle-holder apron, at least two cross-members on which each of the nozzles is pivotably fixed, the assembly of the nozzles of each apron thus being continually movable, in the manner of a deformable parallelogram, in one direction and then in the other, on corresponding oscillating movement of the slider.

Abstract: A fuel injection nozzle for internal combustion engines, in which the valve needle together with the valve seat of the nozzle body forms an electric switch which by its opening and closing indicates the injection onset and the injection duration. A spring-elastic conductive element is disposed inside the closing spring and connects the attachment piece with the valve needle.