Abstract: The apparatus consists of two chambers, one inside the other, the outer being substantially larger than the inner, with a space between the chambers, but with inner projecting bumps or lands that seal to the outside surface of the inner chamber. Both chambers have holes to admit and conduct fluid and one of the holes is a spray nozzle. The various plates, chambers bumps and holes are arranged so that when the outer chamber is in one position spray fluid is conducted to the back of the spray nozzle which sprays in the ordinary way. When there is a blockage the user rotates the outer chamber to the alternate position which covers the spray nozzle, makes it confluent with the inner chamber, aligns a new set of openings, bumps block others, so that in this alternate position spray fluid pressure forces the spray fluid into the space between the chambers, into the spray nozzle opening and out a debris flushing outlet. This reverse flow carries blocking debris from the spray nozzle and discards them.

Abstract: In a shower head (12) provided with hard-jet ports (84) and soft-jet ports (88), a partition wall between the distributor chambers (32, 82) communicating with these sets of ports is designed as an insert part (26) which can be inserted from the open end of the housing (14). The partition wall insert part has an integrally formed valve supporting section (38) with connection channels (42, 72, 74) to the feed port (44) and the two distributor chambers (32, 34) respectively and carries a linear slide change-over valve, whose valve seat (50) and valve slide (52) are made of a ceramic material.

Abstract: A nozzle for the gunning of monolithic refractories, being provided with a liquid adding mechanism (6), characterized in that an air or air-liquid mix feeding portion (4) having an inlet (4a) and a tube protecting pipe (3) are arranged in order following the liquid adding mechanism (6), a flange portion (1a) of a flexible inner layer tube (1) is anchored on the liquid adding mechanism side of said feeding portion (4) while another flange portion (2a) of a flexible outer layer tube (2) is anchored on the side of an outlet (10) of the feeding portion (4) thereby to insert the inner layer tube (1) into the outer layer tube (2), and an annular dead space (11) communicating with the inlet (4a) is formed between the inner layer flange portion (1a) and said outer flange portion (2a).

Abstract: An improved locking assembly is provided for releasably locking a valve unit incorporated into a sprinkler housing or the like, wherein the locking assembly prevents the valve unit from being driven from the housing as a projectile by water under pressure at the upstream side of the valve unit. The valve unit includes a mounting ring normally held seated upon a shoulder seat within the base of the sprikler housing by the locking assembly including a stacked pair of snap rings installed into an enlarged housing lock groove thereby positioning a movable valve member in association with a valve seat to control water flow into the sprinkler housing. The valve unit is removable from the housing, for example, for maintenance purposes by removing the two snap rings one at a time.

Abstract: A compost spreader has a hopper mounted on a turntable so that the hopper may be rotated lengthwise to go through gates but crosswise when spreading the compost. The frame of the spreader telescopes so as to accommodate the length of the hopper when the hopper is turned lengthwise. After the spreader has gone through the gate and the hopper turned crosswise, then the frame is shortened or collapsed. The compost is distributed from the hopper by an endless belt at the bottom of the hopper.

Abstract: A nozzle assembly adapted with an adhesive spray gun for forming a liquid adhesive/gas solution into a foam includes a nozzle formed with a chamber having a rearward end and a forward discharge orifice which is maintained at a pressure less than that required to maintain the gas in solution in the liquid. A turbulence plate having a front surface formed with a notch is mounted to the spray gun such that the notch extends within the rearward end of the chamber. The notch is formed with at least two input ends and a turbulence zone therebetween. The liquid/gas solution is conveyed to each input end of the notch where a separate stream of solution is formed. The streams move along the notch from each input end toward the turbulence zone of the notch where they impact one another within the chamber.

Abstract: The instant invention relates to a spray nozzle or showerhead which is operable to selectively discharge a continuously coarse spray, a pulsating spray, a variable combination of the coarse spray and pulsating spray, a continuously fine spray and a variable combination of the fine spray and pulsating spray. The nozzle housing is formed with three separate groups of discharge orifices. A flow directing plate is designed to direct flow through three set of passages to discharge said five types of sprays.

Abstract: A container having associated with it at least one memory device in which a record of the contents of the container is stored, the memory device being addressable such that the record of contents may be altered during use of the container to maintain a record of the remaining contents of the container.

Abstract: In an electromagnetic fuel injection valve of the axial flow type, a tubular member with both its ends open is disposed in a penetration path that is formed in a stationary core, and an area is sealed between the outer periphery of the tubular member on the side of nozzle and the inner periphery of the penetration path. Further, the path formed between the tubular member and the penetration path is communicated with fuel space formed around the outer periphery of the stationary core. Therefore, the fuel circulates when it is allowed to flow out or flow in via the inner path of the tubular member.

Abstract: The invention relates to a process and device for injecting at least one stream of a finely divided material into a hot gaseous flow, such as a plasma jet. According to the invention,--there is interposed on the path of said hot gaseous flow a screen pierced with a plurality of orifices spatially distributed about said hot gaseous flow so as to fractionate the latter into a plurality of elementary flows at least approximately in the same general direction; and--said stream of finely divided material, is led to at least one nozzle at least partially surrounded by said orifices, in order to create at least one stream of finely divided material whose direction is at least approximately similar to that of said elementary hot gaseous flows and surrounded by at least certain of them. The invention is particularly applicable to plasma chemistry.

Abstract: A hydrocannon system for removing deposits from surfaces, such as in the cyclone burner of an electrical generating station. A high pressure spray of water is propelled through the nozzle of a gun at high pressure to hydroblast material to be cleaned from the surface. The gun is self supported on a rack for adjustable vertical movement, up and down tilting movement, and swinging movement about an axis for a 360.degree. arc.

Abstract: An improved paint spray machine having a spray gun with an adjustable spray nozzle, apparatus for controlling the speed and acceleration of the horizontal and vertical movement of the gun, apparatus for controlling the number of passes by the gun, apparatus for controlling the dwell period at the end of each pass and apparatus for controlling flash time between coats of paint; wherein the improvement is the following: (1) a computer system: (a) capable of storing programs for multiple paint spray procedures with their specific operating parameters; and (b) capable of actuating, monitoring and correcting parameters of a spray procedure so as to insure accurate spray application of the paint; and (2) optionally, apparatus for connecting the spray machine to a remote computer system and apparatus for controlling the flow of paint to the spray gun.

Abstract: An improved electrostatic spraying apparatus for robot mounting is disclosed. The electrostatic spraying apparatus has a drive assembly connected to a spray gun assembly. The spray gun assembly has a base and a detachable barrel. The drive assembly acts to rotate the spray gun assembly through a plurality of preselected paths of movement. In addition, all coating contaminated parts can be removed from the apparatus by removing the detachable barrel.

Abstract: Water irrigation apparatus comprises a water supply pipe and means for moving it over the ground to be irrigated, the water supply pipe including a plurality of coaxial tubes, and a plurality of longitudinally-extending, circumferentially-spaced radial ribs supporting the inner tube within and spaced from the outer tube. Water is inletted into the inner tube, and outletted therefrom along longitudinally-spaced points.

Abstract: A spreader for particulate material, the spreader being of the broadcast type having a hopper from which particulate material is discharged onto a rotating impeller. To provide adjustment for materials of various physical properties, a conically-shaped deflector is mounted between the hopper and impeller. The deflector is helically shaped at the bottom so that it has a gradually varying radius. By rotary adjustment of the deflector, particulate material can be discharged onto a preselected portion of the impeller.

Abstract: A blowing device for compressed air or the like comprising at least one supply channel (15) which is connectable to a source of compressed air and outlet (19) which is shaped to impart to the compressed air a jet in the form of a ring or part of a ring, and at least one communication channel (20) adapted to connect the inside of the jet with the atmosphere. The object of the invention is to provide a blow nozzle with a large contact surface between outflowing pressurized air and the ambient air in order to provide an airflow with a low sound level, a large momentum, high efficiency and reduce striking velocity against the object intended to be cooled, dried or blown clean. This has been attained in that the product of the ratio between the outer plus the inner circumference (O.sub.2 and O.sub.1) of the outlet (19) and its area (A.sub.out) and, on the other hand the inner diameter (D) of the outlet and its width (S), is at least 4 mm/mm.sup.2, preferably considerably larger than 4 mm/mm.sup.2.

Abstract: The invention relates to a throttling-pintle nozzle for fuel injection in an internal-combustion engine, with a nozzle needle which lifts off from its needle seat under the pressure of the injected fuel counter to the direction of flow of the fuel. The throttling pintle of which is located within the spray hole in the closing position of the nozzle needle. To prevent an unduly sharp variation in the injection rate from occurring as a result of coking residues in the spray hole, the pintle is provided with a special flattened portion which is arranged obliquely relative to the center axis of the pintle, so that with an increasing stroke of the needle in the opening direction an increase in the passage cross-section represented by an oblique flattened portion takes place.

Abstract: An automatic fire-extinguishing device for an oil burner is disclosed which is capable of manually carrying out the fire-extinguishing at the occurrence of any trouble in the oil burner as well as at the occurrence of earthquakes with good reliability and significant simplicity. The automatic fire-extinguishing device includes a movable lever which is adapted to be operated by a manual operation lever mounted on a movable shielding plate at the time of fire-extinguishing to upward move a combustion cylinder with respect to a wick receiving case through a lever mechanism to form a space between the cylinder and the case and receive the shielding plate into the space, so that the fire-extinguishing may be accomplished.

Abstract: A rotary atomizer spray painting device having a nonconductive fixed, axial tube for feeding paint, and having a nonconductive rotor supported for rotation in a nonconductive housing about the tube on air bearings or nonconductive ball bearings, and having turbine drive blades proximate one end thereof, the rotatable rotor supported inside of a nonconductive housing which has a high voltage electrical path therethrough, electrically connected to one or more symmetrically spaced forwardly projecting needle electrodes, the rotatable rotor being fixedly attached to a nonconductive forwardly projecting bell-shaped atomizer, the housing having pressurized air inlets for directing air in driving relationship to the turbine blades.

Abstract: An electro-magnetically operable valve serving especially as fuel injection valve for a fuel injection device of internal combustion engines. The valve is composed of a valve housing, in which a magnetic coil is disposed around a core. The core has a concavely formed stop face against which, during excitation of the magnetic coil, a ball rests. The ball serves as an armature and movable valve part and cooperates with a fixed valve seat. The radius (r.sub.1) of the concavely formed stop face of the core is larger by about 0.1 to 1 mm than the radius (r.sub.2) of the ball. This causes a sufficient hydraulic cushion between the end face of the core and the ball when the ball is attracted toward the core upon magnetic energization of the latter and thus prevents a bouncing movement of the ball or its sticking to the core, when the ball is biased toward the valve seat upon de-energization of the core.