Abstract: An odor filtering device for space dispensing a volatile oil by soaking a porous substrate with a malodor counteractant composition. The exposed surface of the substrate permits evaporation of malodor counteractant creating an internal vapor pressure differential which drives the counteractant from the interior of the substrate to the surface to replace the surface loss. Particular devices are formed and arranged to permit controlled release of the malodor counteractant over an extended period of time.

Abstract: Described is a method of making fluid-issuing openings through the wall of flexible plastic members, particularly fluid conduits, by forming each opening through a small radius of curvature portion of the conduit wall while the respective wall portion is of curved oblong shape in cross-section, such that during use of the conduit, it assumes a circular shape, thereby increasing the radius of curvature of the wall portion and reducing the cross-sectional area of the outer part of the opening formed therethrough. The method is particularly described for producing linear-source water irrigation emitters which have a smaller sensitivity to clogging, which are easier to clean, and which have a smaller sensitivity to pressure variations in the water supply line.

Abstract: A rotary sprinkler is provided with structure for adjusting the force applied to the impact arm by the impact arm spring. The sprinkler has a laterally directed nozzle cooperating with the arm to rotate the nozzle and an impact arm journaled on a shaft extending above the nozzle. The arm is mounted within a cage extending above the nozzle. The cage includes a pair of arms extending from the nozzle on opposite sides of the shaft and terminating at their upper ends remote from the nozzle in a top plate. A helical spring surrounds the shaft and is secured at its lower end to the arm. A bushing assembly is mounted in the top plate of the cage and receives the top end of the spring. The bushing assembly may be manually adjusted relative to the top plate to vary the force applied by the spring to the impact arm. The sprinkler is mounted in a bucket-like housing positionable within the ground such that the mouth of the housing is flush with the ground surface.

Abstract: A mobile watering apparatus has a framework which is provided with wheels and supports a watering nozzle as well as a drum forming rotary magazine for a pipe, one end of which is connected to the nozzle. The other end of the pipe, leaving the drum, is adapted for connection to a water supply station on the land. A hydraulic motor, actuated by water under pressure, allows the traveling of the apparatus and the joint winding of the pipe on the drum, with however, a slip clutch in the second case. This slip clutch is preferably controlled by a means responsive to the tension being exerted on the pipe.

Abstract: A cordless pneumatic tire built on a conventional tire building drum by placing an extruded piece of uncured rubber, including tread and sidewall compounds, between a pair of beads positioned on a pair of rubberized strips, with reinforcing cords, disposed in parallel relation around the building drum. The ends of the strips extending beyond the beads, are reversely turned back over the beads into contacting, adhering relation with the sidewall stock, forming an uncured tire body, which is then removed from the building drum, placed in a mold and heated to vulcanize the tire.

Abstract: A fuel injector, which is principally for use in a compression ignition engine, comprises a body having a bore therethrough in which a valve member is slidably mounted for co-operation with a seating to contro1 the flow of fuel past the latter, the valve member being biased into engagement with the seating by a compression spring. The biasing force of the spring, and therefore the fuel pressure at which the valve member opens, can be adjusted by rotating a collar relative to the body. The collar is both internally and externally screw-threaded, and engages complementary threading on the interior of the bore. An externally screw-threaded retaining member engages the internal threading on the collar and also has an abutment which engages the body, the retaining member serving to retain the collar in position in the bore. Once the biasing force of the spring has been set by rotating the collar, the retaining member prevents the collar from being inadvertently rotated subsequently.

Abstract: Liquid spray devices are known in which a liquid is emitted from an orifice in the form of a thin sheet of the liquid which subsequently breaks down to form droplets but normally the spray contains very many droplets of very small size which are subject to drifing in cross winds. In this invention means are provided to subject the spray sheet itself to atmospheric environmental conditions such that the sheet breaks down nearer its point of origin and the tendency is for droplets of greater size to be formed with consequent lower tendency to drift. In carrying out the invention hot gases can be released in the environment of the spray sheet and suitable gases can readily be obtained from combusted gases, possibly from the exhaust of the engine of a tractor towing the device.

Abstract: An accumulator-distributor for gathering a quantity of water under pressure and rapidly discharging the quantity of water in bursts whereby large agricultural areas can be watered from a low volume source of irrigation water is shown. An expandible chamber is provided having a flexible diaphragm as one wall thereof. Bias means carried by the flexible diaphragm are adapted to exert a pressure upon the valve member closing the outlet opening from the chamber an amount insufficient to retract the valve member against the differential pressure of the accumulated water acting on the valve member. A second member is adapted to contact and lift the valve member from the valve seat at the point of maximum expansion of the chamber whereby the differential pressure is removed from the valve member and the bias means is able to rapidly withdraw the valve member completely from the outlet opening from the chamber to allow the rapid and complete expulsion of the accumulated water therein in an optimal manner.

Abstract: A rotary irrigation sprinkler of the impact drive type is provided wherein a stream deflector for driving the sprinkler is supported adjacent the outlet of the sprinkler at one end of an elongated spring, the other end of the spring being secured to the sprinkler body.

Abstract: Disclosed is a fog generating apparatus having adjustable metering valve in which the liquid atomized at the nozzle of the apparatus is drawn past a valve opening of adjustable size and flows through the cooperating valve stem to a conduit leading to the atomizing nozzle.

Abstract: A plurality of circumferentially spaced teeth are positioned in a predetermined manner on the end of a pattern-forming sleeve for a liquid discharge nozzle. Each of the teeth is provided with a stream-deflecting surface which is disposed to deflect portions of the discharge stream angularly into intercepting relationship with each other to increase the liquid particle breakup in the stream and improve the uniformity and homogeneity of the stream pattern.

Abstract: A convergent-divergent exhaust nozzle is provided with a four-bar linkage system which allows effective variation of both the primary nozzle throat and exit areas, as well as movement of the outer nozzle, by movement of a single cam roller assembly. In addition to the convergent and divergent flaps, the linkage system includes a rigid link extending out from the exhaust duct and a compression link pivotally interconnecting the rigid link and the divergent flap. Nozzle area variations are accomplished by rotating the convergent flap about a pivot attached to the exhaust duct, with the divergent flap and the outer nozzle flap being moved accordingly. The desired nozzle throat/exit area ratio relationship can be appropriately established by proper selection of the lengths of the individual links and location of their connection points. Provision is made to readily change the length of one of the links to thereby modify the area ratio schedule as desired.

Abstract: A composition for and a method of causing rainfall in which crystals of a metallic iodide, such as lead or silver, are suspended and dispersed in a solvent, especially an organic solvent which, upon volatilization, chills the crystals suspended and distributed therein to that temperature at which the crystals are effective for causing rainfall to be initiated.

Abstract: A heat sensitive release device, for example a sprinkler, comprises two relatively movable components, for example a yoke and valve member. A collapsible strut system is located between the relatively movable components. The collapsible strut system includes a catch element having opposed wings between which is held a heat sensitive element, for example a double ended heat sensitive cartridge. The collapsible strut system also includes a lever fulcrummed on one of the components and a strut engaged between the other component and the lever adjacent the fulcrum. The strut or the lever bears against the heat sensitive element while the lever or strut is connected to or integral with the catch element.

Abstract: A hydraulic installation includes a gate valve and an injector rectilinearly mounted in series in a water inlet conduit which feeds a turbine. The injector includes a central body portion in which first and second servo-motors are housed. The first servo-motor controls the tip of the injector and the second servo-motor controls the movement of the plug of the gate valve. A single crosspiece secures the injector to an outer annular casing and also absorbs hydraulic forces otherwise exerted on the gate valve and the injector.

Abstract: A pressurized safety nozzle and storage rack assembly comprising a substantially rigid tubular fluid conduit having an enlarged diameter portion adjacent its outlet end, and a rack having a nozzle support and anti-kickback semicollar feature which substantially surrounds the conduit and is adapted to engage the enlarged portion thereof and prevent accidental axial withdrawal of the nozzle from the rack when fluid pressure is applied to the nozzle.

Abstract: A jet proportioning and liquid mixing pump system having one or preferably more than one proportioning stages with the first stage operating at a low ratio below 1 to 5 to minimize degradation in which solvent under kinetic flow energy initially mixes with free flowing solute at substantially environmental pressure to prevent vaporization effects upon the solute, and, controlling the desired ultimate ratio with high accuracy by either varying the effective flow area of the solvent flowing under kinetic energy in a final mixing zone, or varying the mixer induced output pressure upon the mixture as it leaves a mixing stage after the kinetic flow energy in the mixture therefor has been converted to pressure flow to maintain a positive pressure upon the solute at the proportioning stages.

Abstract: A novel fountain device for a swimming pool is disclosed which features an adjustable jet pump for controlling the elevation of the water column as it is ejected from the fountain and the rise and fall of said column from a minima to a maxima.

Abstract: An improved paint spray gun assembly of the syphon type having a vented paint supply container, is characterized by a conduit connectable either between the container vent and a compressed air inlet to the gun, or between the vent and a fitting remote therefrom and open to atmosphere. With either connection, the conduit prevents dripping of paint from the vent upon manipulation of the gun by an operator, and with the connection of the vent with the compressed air a positive pressure is generated within the container to increase the paint flow rate from the gun.

Abstract: An improved paint spray gun assembly of the syphon type having a vented paint supply container, is characterized by a conduit connectable either between the container vent and a compressed air inlet to the gun, or between the vent and a fitting remote therefrom and open to atmosphere. With either connection, the conduit prevents dripping of paint from the vent upon manipulation of the gun by an operator, and with the connection of the vent with the compressed air a positive pressure is generated within the container to increase the paint flow rate from the gun.