Abstract: The present invention provides an industrial washing machine in which articles or parts to be cleaned are supported in a basket rotated by a jet spray and cleaned by a cleaning spray, maintained at a desired pressure. The jet spray provides an overflow relief to avoid unacceptable increases in the cleaning spray pressure with the rotating basket being provided with a brake to substantially maintain a predetermined rotational speed of the basket.

Abstract: A wheel washer has first and second applicators which each have a row of plural spaced nozzles for delivering high pressure fluid to the wheels of a vehicle. The first applicator is fixedly mounted adjacent a track which guides the tires at the driver side of the vehicle. The second applicator is mounted by parallelogram support structure for movement toward and away from the tires at the passenger side of the vehicle. This second applicator is shifted to maintain a desired spacing between the nozzles and the wheels being cleaned, regardless of the width of the vehicle. Cleaning fluid is delivered to one nozzle of each applicator and a laterally disposed nozzle of the other applicator at a time. In succession, the pairs of nozzles apply cleaning fluid to the wheels as the vehicle travels through the vehicle wash. Treadle switches, angled relative to the direction of vehicle travel, are utilized to control the flow of fluid to the desired nozzles of the applicators.

Abstract: In the disclosed glass washing machine each spray curtain comprises a vertically slitted sheet of supple plastic and a similarly slitted guard sheet of a stiffer but flexible smooth-surface plastic. The guard sheet extends down through about the upper half of the height of the supple sheet and overlies its side from which glasses approach it, prolonging the life of the supple sheet by decreasing rubbing and sharp flexing due to passing glasses. A grid of vertical slats closely underlies the top wall in each cleansing zone, causing upwardly sprayed liquid to fall from it in numerous uniformly distributed streams that are effective in cleansing exterior surfaces of glasses. Each spray nozzle assembly is removable without tools by loosening one wing nut and pulling out of the assembly a male fitting on a hose that communicates the assembly with another part of the machine.

Abstract: A flitch washer includes inner and outer cylinders, the space between which is closed at its ends by bulkheads. The inner cylinder defines a passageway open at an entry end and an exit end. A conveyor is provided for conveying a flitch through the passageway from the entry end to the exit end. Nozzle openings are provided through the inner cylinder into the space. Nozzles and plugs are inserted into the nozzle openings to provide a desired pattern of spray of a washing fluid from the space between the cylinders through the nozzles into the passageway. A filter mechanism is provided for trapping debris and the like removed from the flitches by the washing fluid. The filtered washing fluid is then returned to the space between the cylinders for recycling through the nozzles. The filter and conveyor are oriented so that the conveyor also conveys accumulated debris from the filter to a receptacle for disposal.

Abstract: A machine for cleaning a coupler consisting substantially of a male coupler element and a female coupler element, especially mating surfaces related parts thereof is proposed for avoiding fouling thereof in advance of practical coupling of both the elements. The machine is provided with a ring tube type cleaner unit suspended from a detachable top cover of a cleaning box. The inside space of the ring tube constitutes a liquid chamber supplied with cleaning water from a source and delivers from a number of nozzle openings formed through the inner wall of the ring tube, for delivery of sweep water jets in the center of the ring tube, where the tip and to-be-coupled ends of both the coupler elements are positioned at a small mutual distance. After cleaning jobs, either one of the male and female coupler elements is advanced to mating position for establishing a tight contact with the other one of the coupler elements for avoiding otherwise frequently encountered, disadvantageous fouling.

Abstract: Cleansing apparatus comprising a pair of rotating cylinders with spray nozzles in the walls thereof. The cylinders provide cylindrical cleansing chambers which have their axes displaced from each other at an angle of approximately 30 degrees to comfortably receive the hands and forearms of a user. Certain of the nozzles in each cylinder are disposed in a helical array to sweep the forearm of the user with cleansing fluid as the cylinder is rotated. Each cylinder preferably has an inner liner and an outer liner with space there between providing a passageway for cleansing fluid to the nozzles which are preferably formed in the inner liner. An elastomeric support for each cylinder is provided. A blower may be associated with the cylinders for drawing air into the cylinders to reduce external splashing of cleansing fluid.

Abstract: A continuous article has its surface treated twice by first and second jets of fluids as passing though a tunnel provided on a pass line. A fluid flow is supplied through each of first and second introducing ports into the tunnel where it is converted into each of the first and second jets of fluids, one rushing over the article in the same direction as the article and the other rushing over the same in the opposite direction thereto for effecting surface treatments respectively by the first and second jets of fluid. Each of the first and second jets causes a negative pressure to be developed at each inlet and outlet outlet of the tunnel through which the article enters and exits the tunnel. The negative pressure in turn draws in the ambient air through the inlet and the outlet over the article to thereby provide an air seal at each inlet and outlet, preventing the fluids introduced in the tunnel from escaping outwardly thereof.

Abstract: An upstanding helmet window panel has a pressurized fluid manifold extending along the upper margin of the window panel including longitudinally spaced spray jet outlet structure for spray discharging fluid from the manifold onto the upper margin of the window panel at an acute angle relatively thereto. A combination of cleaning liquid (water) and gas (air) is supplied to the manifold under pressure and the water and air are discharged from the jet outlet structures in a pulsating manner with the pulsating discharges of water serving to increase the cleaning action on the window panel and forming a layer of water flowing over the panel and the pulsating discharges of air serving to form a curtain of air over the layer of water on the window to smooth out and maintain a generally constant thickness of the water layer and thus increase visibility therethrough.

Abstract: A system which is particularly useful for use with lavage hand and arm washing machines supplies pulsating jets of water alternately to a first bank of nozzles (for the right hand) and a second bank of nozzles (for the left hand) without causing on/off shocks to be applied to the water supply system. This is accomplished by supplying the water from the water supply (either from a pump and reservoir or a municipal water supply) to the inlet of a rotating distributor located inside a housing. Outlet pipes for the two banks of nozzles are located on diametrically opposite sides of the housing and communicate with the interior. The distributor is designed to increase the flow through one of the outlets while simultaneously decreasing the flow to the other outlet by a corresponding amount, in a manner which produces a sinusoidal pulsation of the water flow out of each of the banks of nozzles. The flow through the first bank of nozzles, however, is 180.degree.

Abstract: Apparatus for the care of contact lenses is disclosed. The apparatus includes a container for a treatment liquid, a contact lens holder which fits into the container, and nozzles positioned in the container for spraying treatment liquid onto contact lenses supported by the contact lens holder and for agitating the treatment liquid.

Abstract: Improvements in pot and pan washing machines (as opposed to dishwashing machines and drinking glass washing machines); a device adapted to receive large pots and pans used in cooking operations in a restaurant or the like which is downstream, typically, in the work process of cleaning pots and pans, from an initial scraping and scrapping tank, then, typically, is followed by a rinsing tank, the latter then followed by a sanitizer tank; a pot and pan washer tank utilizing a multiplicity of relatively high velocity, underwater, spaced apart water input jets on one wall thereof which provide a tank-wide circulating flow from upper back to lower front and then upwards and back within the tank from the front wall, the jet nozzles being positioned below the operating water level, there preferably being an overflow opening above the jet nozzles and pipes associated therewith, a pump circulating water from a lower portion of the tank at one side thereof to the noted jet nozzles, a faucet being preferably provided abo

Abstract: A closed system paint or varnish stripping apparatus in which the surface finish of furniture and the like can be removed with very little operator contact or maintenance. The system recycles the stripping chemical with only a minimum of filtering being required. Nozzles having an unique design in which the diameter of the orifice is greater than one-half the inside diameter of the supply pipe facilitate spraying the recycled chemical with very little possibility of the nozzles plugging. Moreover, the use of these large orificed nozzles allows the chemical to be sprayed at a high flow rate providing for the drenching of a work piece in several seconds and eliminating much of the mist production and evaporation losses previously associated with paint and varnish stripping operations. In addition, this high flow rate is achieved with only low pressure loss so that low pressure pumps with small motors can be used.

Abstract: A degreasing and cleaning machine for removing grease, oils and other substances or residues from the surfaces of machine parts and/or various articles of manufacture which includes a porous and continuous transporting conveyor having a section which extends through a chamber so as to be completely submerged in a cleaning solution and wherein flow controllers cycle a major portion of the cleaning solution through vertically spaced headers so as to direct the solution toward both the upper and lower sides of the transporting conveyor while minor portions of the solution are simultaneously passed through a non-turbulent skimmer chamber wherein greases, oils and other residues are continuously removed from the cleaning solution.

Abstract: A portable sailboard frame comprised of an upper tubular structure and a lower supporting rack which can be assembled and disassembled because of its modular features. The frame is also multifunctional and facilitates the maintenance of sailboards, surfboards and similar craft.

Abstract: A vehicle headlight having a glass front and an outer frame surrounding the glass front and supporting at least one sprayer directed towards the same; which frame is hinged to the headlight in such a manner as to turn about an axis in relation to the same, by virtue of a hydraulic piston powered by a compressed fluid supplying the aforementioned sprayer.

Abstract: A parts washer and a method of washing parts. The parts washer has a cabinet having a rotatable turntable for carrying parts in a circular path and an oscillating spray manifold has spray nozzles directed toward the top, bottom and side of the parts and is caused to oscillate in an advancing movement counter to the direction of travel of the parts on the turntable and a return movement. The rate of travel of the spray nozzles varies in the two directions of movement with slower travel in the advancing movement and fast return movement to insure that successive sprays delivered by the spray nozzles in the advancing movement overlap on the parts to avoid any striping effect on the parts.

Abstract: Vertical photoresist developer for processing of any size of printed circuit boards carried on a processing cassette. The processing cassette is carried by a chain through a main chamber, a rinse chamber and a drying chamber, all the processing chambers in line with each other. The processing system is electromechanical and electrically controlled, as well as air and liquid flow control. The developer is system oriented and symmetrical in operation to either side of the board. A printed circuit board holder with gripper fingers mounted in removable plastic chain cassette carries the board through separable processing chambers.

Abstract: Vertical photoresist developer for processing of any size of printed circuit boards carried on a processing cassette. The processing cassette is carried by a chain through a main chamber, a rinse chamber and a drying chamber, all the processing chambers in line with each other. The processing system is electromechanical and electrically controlled, as well as air and liquid flow control. The developer is system oriented and symmetrical in operation to either side of the board.

Abstract: A releasably retainable fresh water flushing adaptor and method of manufacture thereof for outboard and stern-drive marine engines having an external lower propulsion housing which includes at least one fresh water intake port along the bottom forwardly bulbous portion of the lower housing. The flushing adaptor includes a molded cover which is mateably, releasably self-retaining over this forwardly portion of the lower housing and also includes a fitting connected or connectable into the bottom forwardly portion of the cover for releasable attachment to a supply of fresh water. The fitting has an internal passage in alignment and in fluid communication with the housing water intake. A water distribution groove formed into the interior surface of the cover adjacent the fitting for an increased water flow into the water intake is also provided.

Abstract: A portable frame for holding and washing scuba equipment comprised of a lower rack structure designed to hold the equipment and a tubular spraying assembly detachably mounted over said structure. The modular arrangement of the frame allows for multipurpose uses including maintenance, transportation and storage of such equipment.

Abstract: A metal product having at least one plane surface, e.g. steel strip, is cooled by means of an aqueous fluid as it moves along a predetermined path by apparatus comprising a wall disposed opposite the plane surface of the product and substantially parallel thereto so as to form a chamber of substantially constant thickness between the plane surface and the wall, at least one aperture in the wall communicating with the chamber for the passage of the aqueous fluid connected to the aperture through the wall. The aperture is connected to a source of the aqueous fluid. The rate of flow of the aqueous fluid and the spacing between the wall and the plane surface are both adjustable.

Abstract: An apparatus for cleaning both the interior and exterior of a paint dispensing roller that has a water inlet attachable to a faucet with a one-way valve to prevent reverse water flow through the inlet, a first water outlet from which water is supplied through a conduit into the inside of the roller flushing it clean, and a ring holding the roller having a second water outlet communicating with the water inlet to supply water to clean the exterior of the paint roller. The ring snugly fits around the roller in order to hold it in place, and also functions to wipe the water from the roller.

Abstract: According to the present invention there is provided a cleaning apparatus for cleaning a paint roller and the like. The cleaning apparatus comprises a handle having an axial passage therethrough and a curved cleaning head, adjacent one end of the handle, having an annular passage in fluid communication with the axial passage of the handle. A plurality of spaced, radially inwardly extending nipples are positioned circumferentially along the inner surface of the curved cleaning head. Each of the nipples has an end face provided with a fluid outlet and a fluid passage extending from the fluid outlet to the annular passage of the curved cleaning head. Means for attaching the cleaning apparatus to a cleaning fluid supply are provided at the other end of the handle.

Abstract: A chemical contamination monitoring system is provided for monitoring and decontaminating protective clothing that has been exposed to toxic chemicals. The system includes a decontamination chamber in which the clothing is supported and a spray assembly, including a plurality of suitably directed spray nozzles, for spraying the clothing with a wash-solvent. Hot air is directed over the clothing to volitalize the contaminates and, after passing over the clothing, the hot air is withdrawn for analysis using gas chromatography or other known techniques. The used solvent can also be analyzed.

Abstract: A cleaning tool for removing deposits from plural surfaces, such as the precipitator plates and wires and the like of coal burning electrical power plants or other fossil fuel combustion systems. The tool includes multiple jets which deliver high pressure streams of water or other liquid in opposite directions for simultaneous cleaning of parallel surfaces. One or more jets are also provided for spraying in a direction perpendicular to the direction of the sprays of the multiple jets for removing deposits from the wires disposed between the surfaces. The tool is coupled to a high pressure fluid source and may be lowered or raised between the plates for effective cleaning.

Abstract: An apparatus that cleans printed wiring assemblies. A plurality of assemblies are positioned in a rack on their respective edges so that each of them is maintained in a substantially vertical plane. A spray header member mounted for reciprocation between an uppermost and a lowermost position has a plurality of horizontally disposed support members that are positioned in staggered relation to the assemblies to be cleaned so that when the header member travels downwardly, the support members enter into the spaces between the rows of assemblies. A plurality of nozzles are formed on the support members, and direct a fan-shaped spray onto the assemblies both during the downward travel time of the spray header member and its upward travel time. The spray impinges the assemblies at a forty five degree angle. Depending upon the cycle being undergone, the nozzles discharge a caustic cleaning solution, domestic potable water, or a dionized water rinsing solution.

Abstract: Disclosed is a system and method for cleaning radioactively contaminated articles, including tools and like items of hardware. The system includes a cleaning chamber for receiving and sealing therein the contaminated articles, a high pressure spray gun disposed within the cleaning chamber for spraying the contaminated articles with a clean solvent to dislodge and dissolve the contaminants, and a system for decontaminating the solvent for reuse. The cleaning chamber includes a drain having the capacity to remove contaminated solvent at a rate at least as great as that at which the solvent is sprayed into the chamber, such that substantially no contaminated solvent collects in the cleaning chamber.

Abstract: A paint roller cleaning device comprising an annular sleeve adapted to have an interference fit with a pad on a roller of a paint roller, liquid passage means within the sleeve, liquid entry means to said liquid passage means and liquid outlet means communicating with the liquid passage means on the inner surface of the annular sleeve.

Abstract: A solder leveller comprising a solder bath into which a board to be soldered can be inserted and then, as it is withdrawn, levelled by air knives positioned above the bath. Recirculating means are provided in the form of ducts on each side wall of the bath, the ducts having ports directing a flow of solder against opposite sides of a board to bias the board away from the sidewalls of the bath, thereby reducing the risk of the board being scratched as it is inserted and withdrawn from the bath.

Abstract: A method for cleaning cathode and/or anode plates which are obtained in the electrolytic refining of metals and which are lifted in groups suspended on bars or lugs from the electrolytic bath and thereafter the plates are washed by passing in succession through the washing operation individually or in pairs inclined in substantially V-manner with respect to each other. Additionally, three or more plates, inclined away from each other substantially in fan manner, may pass through the washing operation. The flat sides of the plates are sprayed at least partially by nozzles which execute a relative movement along the flat sides.

Abstract: A cleaning device to be used during dental surgery and dental treatments for cleaning, disinfecting and drying instruments, in particular turbine drills, comprising a box-container, including a vertical cylindrical chamber delimited by a tubular body, provided with an opening in the top wall of said container, body which is formed by three coaxial elements assembled to each other and which can be disassembled. The chamber is barred at the bottom by a removable grate which is designed to support the instrument during the cleaning operations, which are performed by means of jets of pressurized water and air fed through nozzles, while lower nozzles deliver pressurized air containing a nebulized disinfectant. The discharge of dirty water used for washing is carried on through the waste-pipe and is promoted by at least one jet of pressurized air, which creates a suction effect towards the bottom of the chamber and at the same time prevents drops from coming out through the opening.

Abstract: Bituminous and other coatings are removed from a pipe surface by directing powerful water jets, e.g. under a pressure of 300-600 bars, and preferably under an acute angle of incidence, against such pipe surface. The apparatus has one or more nozzles, each provided with water supply means, in a frame that can be mounted around the pipe to be treated. In a preferred embodiment, the nozzles are arranged in groups on rotatable annular discs which surround the pipe with some clearance and which receive a reciprocating rotary movement during operation, while the frame carrying such discs is adapted for travelling in longitudinal direction of the pipe. If both movements are coordinated, i.e. effected simultaneously then, each nozzle will follow a zigzag path along the pipe surface, thereby covering a vast area and removing bituminous or other coatings in a fast and efficient way.

Abstract: A flushing device (15) for supplying water to the cooling water inlets (14) of an outboard motor (10) uses a connecting pin (18) extending through the inlets (14) to attach a pair of sealing cups (16 and 17) over the inlets (14). A sliding spring latch (19) releasably attaches one of the cups (17) to the connecting pin (18). A hose connection (25) allows water to be supplied to the inlets (14) through the cup (16).

Abstract: After subjecting a semiconductor element to etching, it must be washed with water and then dried so as to remove any etchant therefrom. In the course of the washing and drying steps, the semiconductor element may undergo quality changes due to its contact with water. Such quality changes become remarkable when the semiconductor element is kept for a long time period in the resultant washings. The above quality changes can be successfully avoided by holding an etched semiconductor element horizontally over a water-washing tank, pre-washing its downwardly-directed front surface with an upward jet of water, thoroughly washing the front surface with pure water blown upwardly from a lower part of the tank while washing its upwardly-directed rear surface with water so that both surfaces of the semiconductor element are washed completely, and then immediately spin-drying the thus-washed semiconductor element.

Abstract: A paint roller cleaning device (20) comprising an annular sleeve (22) adapted to have an interference fit with a pad on a roller (55) of a paint roller. The paint roller cleaning device (20) includes liquid passage means (28) within the annular sleeve (22), liquid entry means (36) to said liquid passage means (28) and liquid outlet means (38) communicating with the liquid passage means (28) on the inner surface (24) of the annular sleeve (22). A plurality of scrubber elements (44) are positioned circumferentially about the inner surface (24) of the annular sleeve (22) along a longitudinal portion thereof. The liquid entry means (36) includes a threaded cylindrical portion (42) in parallel orientation with the annular sleeve (22).

Abstract: An assembly of a washing container and a water supply attachment. The container is designed to maintain a continuous flow of washing liquid such as water at a constant level therein, and the attachment is designed to supply said continuous flow of washing liquid through a lower spray ring which causes the liquid in the container to flow upward towards the center of the liquid level, and through an upper spray ring which causes liquid to be sprayed down from above the surface of the liquid towards the center of the liquid level. Thus, items to be cleaned, placed in the liquid within the container, are caused to be circulated up from the bottom of the container towards the surface of the liquid and to be sprayed in a continuous manner to assist the cleaning thereof.

Abstract: A printed circuit processing apparatus includes a modular tank arrangement with each of the tanks receiving a printed circuit board to be processed on edge, or in other words vertically, and which guides the printed circuit board through the tank for processing without leaving marks or "tracks" on the sides of the board. The boards are driven by rollers on which the lower edges of the boards rest. The boards are held vertically through the use of a plurality of vertically spaced longitudinally extending wires. Spray nozzles are positioned on opposite sides of the boards and are simultaneously operated to generally equalize the pressure on the opposite sides of the board. The spray nozzles contain the necessary solutions for processing the boards, and the guide wires are small enough so that they don't leave any areas of the board unprocessed, nor do they leave "tracks". The modular tanks permit one or several operations in a continuous path with connecting sections between the modular tanks.

Abstract: Cleaning of objects from adhering liquid surface treating medium after galvanic and/or chemical surface treatment and recovery of the liquid medium is performed by lifting objects treated in a working container by a drum aggregate, bringing two half shells over the drum aggregate to embrace the latter so that at only a lower region of the drum aggregate a gap remains, and blowing a gas stream through the half shells to the drum aggregate so that an adhered treating medium is removed from the objects and flows directly back to the working container through the gap.

Abstract: Articles which require the removal of an adhering substance, such as residue of a galvanizing bath, are rinsed by spraying an aqueous rinsing agent against them repeatedly. Each spraying interval is followed by a run-off interval during which the sprayed-on rinsing agent can run off the articles. The length of the run-off intervals is equal to, or greater than, the length of the spraying intervals.

Abstract: Disclosed is the continuous processing of flat workpieces such as printed circuit boards which are suspended by a hanger conveyorized for continuous horizontal transport. More specifically, the conveyorizing passes the workpieces through a plurality of chambers having slotted-end members, one such chamber spraying to remove the photoresist, and another such chamber spraying etching solution to remove the copper cladding. Each station has a slotted cover, and the conveyor suspends a plurality of workpiece holders, each of the holders being joined by chain links of an inert material which overlie the slot in the covers for the chambers. The photoresist chamber is provided with a continuous filter for cntinuously removing and filtering the sludge, thereby reducing the tendency of the removal solution to dilute and become ineffective. All of the chambers are modularized, and the system is compatible with continuous processing for the plating of the printed circuit boards.

Abstract: A filter-cleaning apparatus comprises a hollow, elongate body provided with cleaning fluid inlet and exit means at respective ends thereof. The cleaning fluid inlet means comprises an annulus which extends peripherally around one end of the hollow body and which defines together with the outer wall of the hollow body a space for receiving cleansing fluid from a source of such fluid. The interior of the hollow body communicates with the space defined by the annulus through a series if holes formed in that part of the wall of the body located within the confines of the space. When cleaning a filter, the filter is inserted into the hollow body through the inlet means herefore and the source of cleaning fluid activated. The filter is then moved axially in the hollow body, past the series of holes, until all the filter has been cleaned. A closure means is provided at the cleaning fluid inlet, to prevent the escape of cleaning fluid during operation.

Abstract: A portable lavage device comprising a moveable tank for holding a cleansing liquid, a pump coupled to the tank for circulating the cleansing liquid under a pressure which varies from a maximum to a minimum and spaced nozzles coupled to the circulating pump and arranged to spray the cleansing liquid under varying pressure against an item to be cleaned.

Abstract: Video discs are dried by first spraying the surface with liquid fluorocarbon to remove water and heating the disc so as to prevent water condensation during evaporation of the fluorocarbon, preferably in a fluorocarbon vapor.

Abstract: A roller apparatus is disclosed for use in a steel sheet transporting device including a table, a plurality of rolls upon which the steel sheet is transported, and water spray nozzels for cooling the rolls and the steel sheet. The roller apparatus including a plurality of helically arranged grooves for tracking the steel sheet to keep it centered as it passes over the transporting device, and for maintaining a controlled and even film of water over said rolls to cool the rolls and steel sheet while preventing the sheet from hydroplaning.

Abstract: A cleaning apparatus for components has means for washing components with high pressure water at a pressure above 1000 psi and preferably about 3000 psi, and an airknife drying means for drying components with a high volume of air at low pressure. Valve means are provided in the high pressure water line so as to selectively control the application of the water.The washing and drying means may be effected at different stations, transfer means being provided for transferring components between stages, or alternatively the washing and drying may be carried out at the same station. The dirty water from the washing is recycled for re-use.

Abstract: An improved apparatus for washing semiconductor materials is provided, which comprises any type of washing container in which a predetermined number of semiconductor materials held in a carrier are washed with pure water, and one or a plurality of shower devices mounted above said washing container to thereby wash the semiconductor materials held in a carrier with new pure water when the semiconductor materials are being lifted up.

Abstract: A self-gripping spring-biased accessory for directing water from an outside source to flush out the cooling system of a marine engine. The accessory comprises a U-shaped retainer terminating at its upper ends in a pair of resilient suction cups which are constructed to bear against the cooling water intake ports on opposite walls of the engine housing. At least one of the cups is connected to an external source of flushing water. A particular feature of the invention, disclosed in several different embodiments of the invention, is that the U-shaped retainer is provided with an auxiliary device to impart a spring-bias to the legs, urging them to move towards one another to secure the suction cups in resilient sealed relation against the cooling water intake ports. In a further modification, a device is provided to apply the flushing water simultaneously to intake ports on opposite walls of the engine housing.

Abstract: A high speed furniture stripping apparatus of the solvent recirculating type comprises an array of solvent-carrying tubes within an enclosure. The solvent-carrying tubes have spray nozzles in their side walls, and internal air-carrying tubes, coaxial with the solvent tubes and having pin holes aligned with the solvent nozzles. When air is supplied to the air tubes under pressure, blasts of air from the pin holes atomize the solvent into fine droplets and project the droplets at high velocity against the furniture. Each of the air tubes is affixed to a nipple threaded into an end wall of a solvent-carrying tube. Rotation of the nipple adjusts the relationship between the nozzles and the pin holes for optimum spray conditions.

Abstract: The spray booth assembly of this invention is used for washing or chemically treating various kinds of objects in various industrial fields. The assembly is substantially characterized by providing a vacuum zone at or below a hanger path which allows the hangers suspended by the conveyor means to travel in a longitudinal direction in the open-type spray booth while carrying the objects to be sprayed. Whereby, the spray booth assembly can prevent the water or chemical moisture from flowing out through the hanger path toward the hanger conveying means.

Abstract: A blast head including a plurality of spray nozzles mounted in a chamber for receiving a workpiece. The several spray nozzles concurrently direct a plurality of streams of a pressurized gas and abrasive grit mixture toward a peripheral portion of the workpiece to remove particulates or debris therefrom. An exhaust outlet is formed in the chamber for discharging the particulates and spent grit.