Abstract: A nozzle for directing a flow of lubricant particles vertically downwardly onto the surface of a disc moving horizontally across the discharge opening of the nozzle includes a pair of side plates which are secured together by end plates to form an enclosure having a narrow discharge opening at the bottom edge. The side plates are substantially in the form of isoceles trapezoids having a bottom edge wider than its top edge and having the end plates extending between the nonparallel edges of the side plates. An inlet port is connected to the top edges of the plates. The side plates have on their inner surfaces adjacent their bottom edges a groove which extends along the bottom edges to the end plates. The grooves are adapted to catch any lubricant which flows down the inner surfaces of the side plates and direct such lubricant to the ends of the discharge opening where the lubricant can drip from the nozzle.

Abstract: A system for burning a liquefied gas comprises a burner gun for spraying the liquefied gas into a combustion space, a pump for feeding the gas under pressure, pipe means connecting the burner gun with the pump, and a flow regulating valve provided in the pipe means, wherein the portion of the pipe means downstream from the valve has its inner diameter so determined in relation with the flow rate of the gas that the state of the gas flow through said portion falls within fog flow zone or bubble flow zone on Baker's two-phase flow diagram.In the system of the invention, unstable combustion of the liquefied gas due to vapor lock in the pipe means can be prevented even when the gas supply pressure is below the vapor pressure of the gas. Besides, the calorific value obtained with the system is variable over a wider range than with a conventional system. Thus the system has a remarkable industrial value.

Abstract: The applicator for applying adhesive to a work piece, for example in an edge glueing machine for work pieces moving continuously through the machine, has adhesive discharge holes (6). The adhesive is supplied through these holes (6) under pressure to the edge of work pieces. Any contaminating particles, which may be present in the adhesive prior to its application to the work piece, tend to travel upwardly with the adhesive in the adhesive supply conduit (2, 4), due to their lower specific weight, whereby the contaminations may clog the discharge holes (6) and prevent the proper application of adhesive to a work piece. For avoiding such clogging the nozzle body (1) is provided with a scavenging duct (5) which is connectable to the adhesive supply conduit (2, 4) for repeatedly passing a portion of adhesive out of the supply conduit (4), whereby the application of adhesive may be performed without any trouble. The discharge holes (6) are closed during the scavenging of a small portion of adhesive.

Abstract: A superheated steam generator for crude oil recovery systems includes a centrally disposed second stage electric superheated steam generating tank surrounded and fed by a plurality of radially spaced first stage electric steam generating tanks. A primary manifold system supplies water to each of the first stage tanks and includes a central reservoir communicating with a plurality of constriction fittings. Each constriction fitting includes a tapered nozzle directed interiorly of the manifold toward a removable plug closing an associated inspection orifice permitting cleaning of the manifold and removal of the associated constriction fitting. Tubes coupled to opposite external ends of the constriction fittings deliver water to the first stage tanks, and are coupled to elongated tubes having portions extending longitudinally interiorly of the first stage tanks.

Abstract: A color change valve structure for rotary head electrostatic spray coating systems, of the type to which a rapid rotation is imparted to a rotary spray head and coating material directed through an orifice against the head for discharge from a peripheral edge of the head in a spray, is characterized by coating material and dump valves behind the head in close proximity with the orifice. The coating material valve controls a flow of coating material from a supply line to the orifice, and the dump valve is operable to establish a passage from the supply line, through the material valve and to a dump outlet. To purge the system of coating material of one color in preparation for spraying material of another, the material valve is closed, the dump valve is opened and a flow of flushing media is established through the supply line, whereby the flushing media cleanses the supply line and material valve.

Abstract: A low pressure, trickle irrigation system and a method of irrigating utilizing the system are provided. The irrigation system includes a head control device for controlling the head of water providing pressure to the system with a water inlet to the head control device, and a pump operatively connected to the water inlet. A buried, generally horizontal main line is operatively connected to the bottom of the head control device, the main line of relatively thin-wall large diameter PVC pipe. A plurality of lateral lines are provided above the main line directly connected to the main line and also buried underground, and extending generally horizontally generally perpendicular to the main line and composed of PVC pipe having a diameter smaller than that of the main line.

Abstract: An aerator, that includes jet-defining slots and jet-fragmenting surface therein, formed in molded plastic parts, is provided with both self-cleaning character by using a movable valve member and a flow-directing washer of shape-retaining character upstream thereof, and with a noise reduction feature obtained by providing on the movable valve member a centrally located conical projection that, in the non-flow condition, extends through and upstream of the flow directing washer.

Abstract: New foam fire extinguishing unit for incorporation into rescue cars is described. It consists of a container which contains a liquid adapted to be used for foam production without adding further ingredients. To the container a device is connected which feeds the fire extinguishing liquid under pressure from the container to a hand-held foam generating nozzle. The device may comprise a motor driven pump or an air pressure device. The foam fire extinguishing unit may be a mixture of water and "Light Water". The new foam fire extinguishing unit can also be used as a stationary unit in work shops and warehouses.

Abstract: An arrangement for discharging liquid medium under a high pressure from a feed pipe having a tubular end portion, includes a jet support with a jet. The jet support is installed inside the tubular end portion of the feed pipe. The jet support has an inlet, an outlet and passages which connect the inlet to the outlet and are so formed and shaped as to increase the pressure of the liquid medium as the same exits the arrangement through the outlet. The jet support is screwed into the tubular end portion of the feed pipe and sealingly connected thereto.

Abstract: An industrial piece-part washer includes a plurality of risers depending from overhead liquid supply headers. Each riser is formed as a continuous length of pipe, along which nozzles are positioned to direct wash liquid to contact the articles to be washed. Each riser is bent, along its length, to angle said nozzles into a selected spray pattern, and each is attached at its upper end to a supply header, and at its lower end to an end cap having a weep hole formed therein. Said riser connections are formed as slipfittings so that no threads are required on the risers, and no threads are directly exposed to the liquid during washing operations.

Abstract: An aerator, that includes jet-defining slots and jet-fragmenting surface therein formed of or in molded plastic parts, is provided with a self-cleaning character that is achieved by providing a washer-shaped body that effects, upon initial flow of water into the aerator, a directed liquid flow at an increased velocity to effect a scrubbing action of the jet-defining slots to dislodge debris therefrom, and a plug member providing an open flow passageway through which the dislodged debris is then discharged, after which the flow passageway is automatically closed by a valve member and normal steady state aeration conditions then prevail in the aerator.

Abstract: Improved apparatus for flushing particulate matter from the pipeline of a center pivot irrigation system. The improved apparatus provides a length of downwardly extending pipe interposed in the pipeline in the immediate vicinity of or contiguous to the outermost mobile tower assembly of a plurality of such assemblies transporting the pipeline, permitting an operator standing on the ground to open the pipe during flushing. The downwardly extending pipe includes a restrictive opening for limiting the rate at which water is released from the pipeline during flushing.

Abstract: An improved premix gas burner design suitable for use in a metal melting furnace which has long service life, a low degree of maintenance, is easily cleared in case of burner blockage, allows inspection of the combustion chamber or furnace interior and still maintains the desired turndown capabilities of premix gas burners. These results are achieved by providing usual and/or physical access to the interior of the burner through a novel access tunnel and by providing a dual composition refractory combustion chamber.

Abstract: A rotatable spray manifold especially designed for a commercial dishwasher and in which the ends of the two hollow arms are closed by cleanout-caps, each cap being carried by a pair of rods that straddle the sides of each elongated arm and are pivotally secured thereto. The pair of rods form a frame that can swing the cap from closing the open end of the hollow arm into uncovering it, thus permitting access to the interior of each arm for cleaning the spray manifold. The cap is adjustably carried by the swingable frame so as to be movable into a water tight contact with the open end of the spray arm. No tools are necessary to be used in the opening or closing movement of the cleanout-cap and the cap cannot accidentally become lost.

Abstract: A hydrolysis column, used to hydrolyze uranium hexafluoride gas with water in an ammonium diuranate conversion process, which includes a pipe having a water inlet, a connector inserted in the pipe intermediate its length, and a gas nozzle connected to the connector to feed uranium hexafluoride gas into the water. Since the uranium hexafluoride gas will freeze at 147.degree. F, the gas nozzle is heated by steam which flows through internal passageways, thus imparting sufficient heat to the nozzle which then acts as a heat sink to maintain the gas in a fluid state. The gas-water mixture is then discharged through the pipe outlet to the next step in the process.