Abstract: An oscillating sprinkler adjustable to selectively alter and adjust the spray pattern as desired is provided. Adjustment is provided by an internal selectable cam connected to an external rotary dial at the distal end of the sprinkler. Placing the spray adjustment dial at the distal (non-hose) end of the sprinkler minimizes the chances of the operator getting wet while selecting the desired spray pattern while the sprinkler is in operation.

Abstract: A rotating spray nozzle has a nozzle mounting member, for attachment to a supply pipe. A nozzle body is rotatably mounted on the nozzle mounting member, and includes at least one, but preferably two, slot-shaped nozzles. Each slot-shaped nozzle generates a fan-shaped spray in a plane. Each nozzle is inclined to intersect the axis of the nozzle axis, to ensure thorough distribution of spray, on either side of the nozzle body, across the nozzle axis. The slot-shaped nozzles can be formed as slots in a unitary nozzle body.

Abstract: An irrigation sprinkler nozzle comprising a nozzle body having a range nozzle passage therethrough and a spreader nozzle disposed therebelow, the spreader nozzle being formed by a generally rectangular cross-sectional chamber having a generally rectangular cross-sectional outlet orifice, the chamber and outlet orifice being oriented with their long dimensions extending in a generally lateral direction substantially horizontal with the ground, the outlet orifice being laterally but not vertically smaller in size than the size of the chamber so that a vertically oriented fan-shaped spray pattern is produced by water projected from the outlet orifice.

Abstract: A flush sprinkler has a sprinkler unit raisable and lowerable in hydraulic manner in a shaft and, several nozzle units, which, as required, can be switched into a sprinkling state with an upper nozzle selecting handle and whose nozzle jets can be modified independently by a jet spreading member adjustable with an associated jet adjusting handle. There are also rings for varying a spray spreading angle as a function of size and position. The handles are raisable and lowerable with the sprinkler unit and therefore easily accessible. For cleaning the bearing of the sprinkler unit, an automatically valve-controlled flushing device is provided. For the reliable draining of the sprinkler, a drain valve is provided directly in the water flow and its body is clipped into a valve bore of the shaft.

Abstract: A sprinkler nozzle for distributing water from a source over an area of terrain comprising a body defining a passage having an inlet section connected by a curve to an outlet section extending at an angle to the inlet section, and a vent port in the passageway at the inside of the curve communicating with an annular chamber surrounding the inlet section for enhancing the reach of the nozzle.

Abstract: A sprinkler nozzle has a plurality of flow passages for forming a desired precipitation pattern between the nozzle and its full range. A conventional nozzle flow passage is used for long range coverage with other secondary flow passages used to provide for close-in droplet coverage. Some passages have a staggered flow wherein water flow is directed through large angle turns for close-in fall-out; secondary passages are also directed to impinge one stream at an angle into a second stream; and secondary passages are also directed onto a concave curved arcuate, or cylindrical, surface to splash outwardly and be deflected along the surface and exit at different angles for a distribution of droplet fall-out.

Abstract: Lawn sprinklers and related devices receive a fluid under pressure and convert its potential energy to kinetic energy; and their spreading range depends on the kinetic energy of the issuing jets. The object of present invention is a device of this class in which, however, the energy of a fluid from a single source is internally so redistributed, through pressure exchange, that different jets are made to issue from it at different kinetic energy levels, thereby making it possible for the sprinkling or spreading to cover a considerably wider area (for any given source pressure) and to do so more evenly.

Abstract: A displacing device for a swimming pool cleaner has a hollow housing with a cylindrical wall and end walls. Within the housing are two spaced partitions which divide the interior of the housing into three chambers. A first and second chamber have openings in the cylindrical wall with jet nozzles projecting therefrom. A ball is located in each of the first and second chambers which close off one opening at a time so that water then flows out of the or each other opening that is open. One end wall and the partitions each have an aperture in which a tube is slidable. The tube has holes so that water fed into the tube at one end flows through the tube and out through the holes into the first or the second chamber, depending on the position of the tube. The tube is moved up and down by an engine that does not form part of this invention. The outer end wall has a connector for connection to a source of pressurized water.

Abstract: A fluid device tank cleaning apparatus having a stationary housing, an outer Tee-housing which rotates about a first axis and nozzle assembly rotatably mounted to the Tee-housing for rotation about a second axis. The stationary housing is provided with passageways for communication with the Tee-housing. The passageways are configured so as to provide a substantially constant cross sectional area to the outer of the Tee-housing.

Abstract: A rotary sprinkler comprises a nozzle outputting a jet axially thereof; a rotor rotatably mounted with respect to the nozzle in alignment with the axial jet and having a surface formation impinged by the axial jet to deflect the jet laterally of the nozzle and to rotate the rotor; and a retarding device having a first surface rotatable with the rotor with respect to the nozzle, a second surface non-rotatable with respect to the nozzle, and a viscous liquid between the first and second surfaces; characterized in that the first surface of the retarding device is a cavity formed in a surface of the rotor opposite to that having the surface formation impinged by the axial jet, and that the second surface of the retarding device is carried by a pin non-rotatably mounted with respect to the nozzle and disposed within the cavity.

Abstract: A washing device mounted on a motor vehicle comprises cold water tanks and a high pressure boiler providing water at 100 to 250 bars. A rotary cleaning arm is supplied with the pressurized hot water and has nozzles at its ends directed towards the surface to be cleaned. A protective casing surrounds the rotary cleaning arm. The cleaninig arm can be mounted underneath the vehicle for vertical movement between operative and standby positions. The rotary arm has a rotation axis passing through its center and is provided with a nozzle at each end, the two nozzles being substantially identical, of flat triangular shape and having the same mean general plane. The nozzle therefore deliver two divergent flat jets that are substantially coplanar and which have different angles of attack on the surface to be cleaned. These jets can impinge on the opposite edges of an element of an irregular surface comprising facets perpendicular to the general plane of the surface, such as cobblestones and duckboards.

Abstract: A rotary sprinkler includes an impact member carried by a rotary nozzle for periodically receiving impacts to rotate the nozzle about its mounting, and a rotary deflector in the path of the water jet discharged from the nozzle and having a surface effective to periodically direct at least a portion of the water jet against the impact member to rotate the nozzle about its mounting.

Abstract: A rotor (11) is provided with a plurality of uniformly circumferentially distributed, radially projecting, tubular nozzle supports (3), which in each case carry a nozzle head (4) at the end. Each nozzle head (4) is circumferentially provided with several differently constructed nozzle units (6, 7, 8) with in each case a plurality of discharge nozzles (9) and in the manner of a turret indexing head is so rotatable about a control axis (30) with respect to the associated nozzle carrier (3), that any selected one of its nozzle units (6, 7, 8) can be brought into the operating position connected to a water supply. This offers numerous possibilities for adjusting the sprinkling pattern.

Abstract: A rotary sprinkler includes a nozzle producing a jet axially of the nozzle, and a rotor configured to deflect the axial jet laterally of the nozzle. The rotor is formed with a socket receiving a pin, and a high viscosity fluid in the rotor socket is effective to apply a retarding force to the rotor during its rotation with respect to the pin.

Abstract: A sewer pipe cleaning apparatus including a sled-like skid means carrying a pipe shaft, which has one end constructed for connection to a source of high pressure fluid and the other end connected to a sewer cleaning nozzle which has a non-rotating base member, a rotatable turbine member rotatably mounted on the base member with a plurality of jet orifices, a bearing means mounted on the base member in abutting engagement with the turbine member, a non-rotating nose cone mounted on the base member for retaining the bearing means and rotatable turbine member in place on the base member, and a plurality of fluid passages are formed through the base member and turbine member for the transmission of high pressure fluid from the pipe shaft and through said passages and out said jet orifices, and also through the bearing means for cleaning the same.

Abstract: Apparatus for effecting controlled and accurate moistening of an object is described. A hollow rotor is provided with at least one shaped portion in its surface, that portion having a row of nozzles therein. The nozzles are drilled completely through the rotor sidewall so that they comprise a conduit between the rotor's center and the outer surface of the rotor. An apertured plate and shutter plate are movably mounted between an object to be coated and the rotor. Fluid is delivered to the center of the rotor from a supply thereof by means of an inlet tube. The rotor is coupled at its other end, which is sealed to prevent fluid escape, to a motor and driven thereby to eject fluid from the nozzles, aided by the vacuum effect of the shaped rotor portion. Only that fluid escaping through the exposed section of the slot in the apertured plate strikes and thereby coats the object to be moistened.

Abstract: An improved swimming pool mounted rotatable head for a water jet pool cleaning system adapted to rotate in a non-uniform sequential manner during a pool cleaning operation to maintain deleterious matter in suspension so that it may be removed by the main drain or skimmer inlets of the water circulation system. A means is incorporated for flushing sand and other debris from around the moving head and from the immediate pool surface area surrounding the head.

Abstract: The spin blast tool includes a housing having a tubular member rotatably disposed on bearings in the housing. A nozzle is mounted on one end of the tubular member and the other end of the tubular member is connected to a pressurized air and sand source. That end of the tubular member adjacent the presurized air and sand source includes a counterbore for receiving a tungsten carbide throat insert. The throat insert has an inner diameter which is smaller than the inner diameter of the tubular member. The insert has an annular radial flange juxtaposed with the end of the pressurized air and sand source. A polyurethane seal washer circumscribes the throat insert and is housed between the radial flange and the end of the tubular member. A wafer spring section is compressed between the outboard surface of the radial flange and the end of the pressurized air and sand conduit. The wafer spring section provides constant pressure on the throat insert as the throat insert wears.

Abstract: A rotary spray arm structure for a dishwasher or the like rotatable about an axis of rotation, the spray arm structure having an entrance passage coinciding with the axis of rotation for receiving a pressurized column of liquid, the entrance passage opening to a hollow interior of the spray arm, and a plurality of nozzles spaced along each hollow arm of the spray arm means with each nozzle having an entrance end at the hollow interior and an exit end for discharging the liquid, the hollow interior in each arm constricting from adjacent the axis of rotation to adjacent the outer end of each arm and liquid supply ramp means leading from the hollow interior of each arm to the inner entrance end of each nozzle with each ramp comprising a groove angled outwardly toward its nozzle.

Abstract: An ice making machine of the type comprising a plurality of ice forming molds into which water is directed by means of a rotating spray bar supplied with water from an associated water sump or reservoir; the spray is mounted for 360.degree. rotation about a generally horizontal axis and includes a plurality of spray nozzles which operate to not only spray water toward the ice forming molds but also toward the water reservoir to provide agitation of the make-up water contained therein so as to prevent settling of any sediment or other impurities within the make-up water.

Abstract: A housing having an interior chamber with an inlet and outlet thereto is suspended by a crane within a ladle or furnace having an interior refractory surface to be relined. A feed conduit for conveying dry refractory material entrained in an air stream extends through the inlet into the interior chamber. A nozzle assembly having a pair of oppositely positioned spray nozzles is rotatably supported in the outlet of the housing. A conduit of the nozzle assembly is rotatably connected at one end by a coupling to the feed conduit within the housing and communicates with the spray nozzles. Each of the spray nozzles includes a water ring that receives a wetting agent, such as water, from a supply conduit that is connected by a swivel assembly to the nozzles to permit rotation of the nozzles relative to the supply conduit. Each water ring directs the water into mixture with the air entrained dry refractory material flowing through the nozzle.

Abstract: A water driven pool cleaning device to sweep a swimming pool floor which includes a housing and a conduit to connect the housing to a water source. Water flow is directed through the housing and through a rotatable pair of arms, journaled for rotation above the housing, to distally arranged nozzles which are arranged to cause the arms to rotate and to cause debris on the pool floor to be flowed by water toward the housing. The housing defines a trap to collect the debris. The arms are connected to the housing so as to permit travel of a roller on the arms over the high and low areas of a pool floor.

Abstract: An articulated spray applicator particularly suited for use in cleaning the interior of segmented flues and the like characterized by a plurality of series connected angularly related conduits, each having an internal passage a longitudinal axis and a plurality of spray orifices, each orifice having an axis extended tangentially to a circle concentric to the axis, a stationary support supporting adjoining conduits for rotational movement about the longitudinal axes thereof and interconnecting the passages in a fluid transferring series relationship, and a coupling connecting the passage of at least one of the conduits with a source of fluid under pressure, whereby the fluid is discharged as a spray from the orifices and a turning moment acting about the axes is established for imparting rotation to the conduits.

Abstract: A pool cleaning device for use in connection with a pump to circulate water of a pool, which device includes a housing with an outlet and structure connecting the outlet to the circulating pump and a rotatable arm journaled to the housing including a jet to cause the arm to rotate and including an inlet to direct water from the pool toward the housing, so that debris which is in the water adjacent the bottom will be directed to exit through openings in the housing and through the outlet of the housing to be filtered in a filter which is conventionally included in the combination with a pool pump.

Abstract: An apparatus for cleaning debris from ducts. The apparatus has a pair of rotatable jets with one of the jets having a zero orifice and the other jet having a spread orifice. A means supports the jets and fluid is supplied to them. Fluid leaving the jet having the zero orifice impinges the debris and cuts it from the duct and fluid leaving the other jet having the spread orifice produces a flushing action removing the debris after it has been cut from the duct.

Abstract: Absorption of treatment composition into a surface layer of particulate material in a moving bed is substantially increased by spraying a major portion of the composition through a first group of nozzles and a minor portion of the composition through a second group of nozzles, the nozzles being attached to the top of a common transverse spray header which is oscillated across the moving bed. The first group of nozzles directs a plurality of substantially parallel vertical jets onto the surface of the moving bed to form therein, on combined motion of the bed and spray header, a zigzag pattern of trenches. The treatment composition is retained in these trenches as it is absorbed by adjoining particulate material. Loss of treatment composition due to run-off over a sloping or insufficiently wetted surface is avoided.

Abstract: A rotary sprinkling system which is configured to minimize the accumulation and detrimental effects of debris, and which comprises a pop-up nozzle head secured to an inner housing slidably received within an outer housing and retained by the compressive force of a spring, such inner housing enclosing an impeller driven transmission subjected to only low pressure drops and having a speed-reducing gear train isolated from water flow, a simplified and easily adjustable direction controlling mechanism substantially inaccessible to intermeddlers, and a manually adjustable by-pass throttle to control the flow velocity of water driving a water-wheel impeller.