Abstract: Cleaning process for removing material coated on the inner surface of an enclosed vessel. e.g., photographic emulsion, photopolymer, subbing layer, chemicals, etc., comprisingA. forming a substantially continuous high pressure stream of cleaning liquid, e.g., water, solvent,B. supplying the stream of liquid at a pressure, 4000 to 8000 psi to at least one fixed point in the vessel,C. dividing the stream into at least two opposed paths, andD. directing the liquid onto said surfaces in a 360.degree. solid angle using the fixed point as the angle vertex.The process is particularly useful in cleaning photographic emulsions but is also useful in removing other chemical materials and chemicals from an enclosed vessel.

Abstract: Apparatus and method for removal of sludge (26) from a tank (10) having a floating roof (16) floating on the upper surface of oil within the tank (10). Discharge nozzles (58) are received within existing sleeves (22) on the floating roof (16) and positioned adjacent the upper surface of the sludge (26) for the recirculation of the contents of tank (10) directly into the sludge (26) from a position above the sludge (26). A recirculation pump (30) provides pressurized fluid to a manifold (48) on roof (16) for distribution through flexible lines (54) to the discharge nozzles (58).

Abstract: A water washing robot having features uniquely useful in cleaning the interior of oil storage tanks and which comprises components that can be independently moved inside a storage tank and conveniently assembled therein. The assembled robot comprises a frame, a positive displacement pump carried by the frame, an articulatable water washing nozzle detachably mounted on the frame for spraying water on the interior surfaces of a storage tank. The robot is hydraulically powered.

Abstract: An apparatus for cleaning a tank-like vessel comprising(a) a supporting arm attached to a fixing plate, which can perpendicularly extend downward,(b) a folding arm of which base portion is rotatably attached to the lower end of the supporting arm, a position of the folding arm being changeable between a housed position and a position in use wherein the folding arm is approximately horizontally stretched out,(c) a rope winded up and winded down by a hoist, and(d) a cleaning nozzle capable of injecting jet water in a two-dimensional direction or three-dimensional direction.

Abstract: A process and apparatus for removing solid propellant from a rocket motor case. Water is heated to a temperature of at least about 150.degree. Fahrenheit, pressurized to a pressure within the range of about 600 to 1200 psi, focused into a jet, and directed while moving relative to the propellant surface at an angle relative to the propellant surface which is in the range of about 15 to 45 degrees from a stand-off distance of up to about 20 inches.

Abstract: Submersible displacement apparatus 10 for periodically displacing a submersible suction cleaner connected to a suction source by a suction hose is disclosed. The apparatus 10 comprises a body 11 defining two converging flow passages 12 and 16 therethrough. Flow passage 16 is connectable in the hose with outlet 14 communicating with the source. Flow passage 12 at its inlet has a valve 17 for periodically opening and closing that passage. An actuation mechanism driven by water wheel 28 is provided for opening and closing valve 17. An impeller is rotatably mounted in passage 12 to drive propeller 20 when water is admitted through valve 17 thereby periodically to exert a displacement force on the body and therefore also on the suction cleaner.

Abstract: A hydraulic circuit and a wheeled self-propelled moveable frame provides a one-way feed of water under pressure selectively bearing a liquid soap or a liquid rinse chemical via a wind up hose mounted on a spool via a drive motor to axle to belt to clutch to shaft on the moveable frame through a multi-way directional valve to a water powered drive motor for driving the moveable frame forward and reverse relative to an open end of a vehicle body and said spool. A water cylinder changes the angle of inclination of a floor nozzle tube rotatable about its axis horizontally at the front of the moveable frame and bears a series of longitudinally spaced nozzles, when the machine travel reverses towards the open end of the vehicle body. The multi-way directional valve changes the water flow direction upon impact of a sensor operatively coupled thereto and projecting forwardly of the front of the wheeled self-propelled moveable frame.

Abstract: Apparatus for fighting fires within storage tanks includes a frame movably coupled to the lip of the storage tank. The frame includes rotatable members by which the frame may be moved around the lip of the storage tank. Attached to the frame is a holding device adapted to hold a fire extinguisher nozzle on the interior of the storage tank so as to direct fire extinguishing agents down the inside face of the storage tank. The apparatus may include a fire detector to detect the presence and location of the fire, propulsion means to automatically move the apparatus around the storage tank to a location adjacent to the fire source, and a storage tank for storing fire suppressing agents be used to extinguish the fire.

Abstract: A tankwasher which may be mounted permanently in a tank that requires frequent cleaning comprises a tube 1 connected to a source of cleaning liquid supply, a shaft 5 non-rotatably mounted in the outlet end of the tube 1 and having an enlarged head at the end thereof which protrudes from the tube 1, a liquid guide 3 surrounding said shaft 5 internally of the tube 1 and formed with helical grooves on its external surface, and a shaped liquid distribution disc 4 rotatably mounted around the shaft 5 between the head of the shaft 5 and the neighboring end of the liquid guide 3. An R-shaped resilient clip 2 constitutes the only connection of the shaft 5 to the tube 1 and, upon its removal, the shaft 5, the liquid guide 3 and the disc 4 can all be freely removed from the tube 1 and from each other for cleaning or other purposes.

Abstract: A method utilizing a portable hydraulic apparatus for cleaning the hydrocarbon contaminated sludge deposit of an oil storage tank with a fluidizing agent, the tank having a floor, a side wall and a passageway through the side wall positioned adjacent the floor of the tank, comprises a frame having a central portion and first and second end portions. The frame is configured and dimensioned to pass through the passageway. A pair of independently movable endless chain belts are position on opposite sides of the frame for selectively moving the frame within the oil storage tank to selected locations. A hydraulic line coupled to the central portion of the frame discharges the fluidizing agent onto an adjacent first portion of the sludge deposit so as to form a pool of sludge and fluidizing agent. A suction pump is positioned on the central portion of the frame for drawing up the pool of sludge and fluidizing agent.

Abstract: A device for cleaning channels of an endoscope has its main body in which a first check valve for permitting merely suction of a liquid detergent into said main body, a syringe for effecting suction and discharge of the liquid detergent and a second check valve for permitting only discharge of the liquid detergent from said main body are provided so that the channels can be cleaned by feeding the liquid detergent thereinto through liquid feed tubes. Further including a transfer valve, a pluraltiy of channels can be selectively and switchably cleaned. In addition, a filter apparatus is provided in the device so as to be able to prevent foreign matters contained in the liquid detergent from entering the channels of the endoscope.

Abstract: An improved water jet pool cleaner system includes a pool cleaner with a buoyant housing powered about the pool by forward and reverse driving nozzles so dirt and other debris is gathered at the low point on the bottom of the pool by the action of depending cleaner hoses. Water from the filter pump enters a fluid reservoir from which it flows along parallel flow paths to the forward and reverse driving nozzles, to a turbine, and to the cleaner hoses. Pressurized water is directed to the forward and reverse nozzles through a rotary valve which is rotated by the drive train connected to the turbine. The parallel flow paths permits water to be provided to the driving nozzles, to the turbine and to the cleaner hoses at pressures substantially equal to the fluid reservoir pressure. The system uses a flow diverter downstream of the main pool filter to divert the proper amount of water to the cleaner. Manual and automatic flow diverters and a novel in-line filter are also disclosed.

Abstract: An apparatus and process adapted to clean oil contaminated vessels which uses a closed fluidized system through which fluidized sludge is recirculated to be sprayed under pressure on interior walls of the vessel. Emulsifying agents are added to the vessel to initially form a pool of fluidized sludge in the vessel which is then conveyed to a tank and from the tank conveyed to a high pressure spray where it is sprayed onto the walls to fluidize more sludge.

Abstract: A fitting for a swimming pool return line comprising a housing with a cylindrical extension that may be inserted into the return line and an outer end closure in which the main nozzle is swiveled for directional control of surface circulation. A slot in the bottom of the housing is of adjustable size for bottom circulation. The fitting is secured in place by pulling sloping, radial legs toward planar disposition which would bear against the inner surface of the return line.

Abstract: There is disclosed in the present application, a decontamination system for reactor vessels. The system is operatable without entry by personnel into the contaminated vessel before the decontamination operation is carried out and comprises an assembly which is introduced into the vertical cylindrical vessel of the typical boiling water reactor through the open top. The assembly includes a circular track which is centered by guideways permanently installed in the reactor vessel and the track guides opposed pairs of nozzles through which water under very high pressure is directed at the wall for progressively cutting and sweeping a tenacious radioactive coating as the nozzles are driven around the track in close proximity to the vessel wall. The whole assembly is hoisted to a level above the top of the vessel by a crane, outboard slides on the assembly brought into engagement with the permanent guideways and the assembly progressively lowered in the vessel as the decontamination operation progresses.

Abstract: Hydraulically operated low pressure reservoir or pool cleaning method and apparatus wherein, by the controlled passage of water through actuating valves, plural water exhaust whips are submersibly extended from a pool shell into the closure to agitate the pool water and scour the shell walls and floor, thereby to perform the cleaning function. The whips may thereafter be retracted into the walls and floor and retained, pending further useage as extended cleaning elements. Method and apparatus present economies of operation and installation, hitherto unknown.

Abstract: An apparatus for safely slug feeding hazardous chemicals from conventional 55 gallon drums comprising a calibrated dip tube adapted to be moved in an up and down liquid-tight relationship through a first bung hole of the drum, a feed line adapted to remove liquid through the calibrated dip tube, check valve means adapted to prevent the flow of liquid into the drum, vacuum-producing means adapted to withdraw fluid from the drum through the dip tube, feed line, and check valve, and cleaning means adapted to be partially positioned within the drum through a second bung opening, said cleaning means including a spray nozzle positioned within the drum and air ventilation means outside of the drum, said spray means being adapted to receive a source of cleaning fluid under pressure. The dip tube may be fitted with a means for preventing its upward movement.

Abstract: A bathtub self-cleaning system includes a series of pop-out spray nozzles designed to be arranged about the confining walls of a bathtub and the like. The spray nozzles are connected by a manifold to a combined concentrate and dilutent mixing control valve. The control valve serves to initially mix the dilutent such as water with the concentrate such as a detergent to provide a diluted cleaning solution. Subsequently, the control valve discharges the cleaning solution via the manifold through the spray nozzles. The spray nozzles when popped-out are directed at the surfaces of the confining walls for their cleaning by the cleaning solution. Upon consumption of the concentrate within the mixing control valve, only dilutent is discharged therefrom to rinse the confining walls of residual cleaning solution or dirt. In this manner, a bathtub may be automatically cleaned without the necessity of any manual scrubbing thereof.

Abstract: A rigid water conduit is manifold connected to a rotary swivel connection and receives high pressure water therefrom and supplies the water to a plurality of jet nozzles. The jet nozzles are rotated about an axis offset from the nozzles and reciprocating means are connected to the manifold for reciprocating the manifold and nozzles about the swivel connection. The swivel connection includes a housing with a water inlet adapted to be connected to a water pump with a hollow mandrel rotatable in the housing and connected to the manifold and having an opening in communication with the water inlet. A bearing and a seal are provided between the mandrel and the housing on each side of the opening whereby the mandrel may be easily rotated. A track is positioned generally transverse to the manifold and a carriage movable on the track includes a pivoting support having bearings for supporting the mandrel but allowing movement of the mandrel transverse to the carriage.

Abstract: A rotational indexing nozzle arrangement has been devised wherein positive and consistent indexing action takes place under the influence of the application of fluid pressure and its relief by the action of an indexing or biased spring which becomes relaxed during the first stage (outward) movement of the indexing of the rotational nozzle head and which bites in and holds thereby causing the nozzle head to rotate during the second stage (inward) movement of the discharge head. The extent of the incremental indexing is determined by the length and angle of the biasing spring, or member. For improved operation a bearing of the ball or roller type may be disposed at the inward end of the nozzle arrangement whereby the resistance of the closing spring to rotation of the nozzle head is lessened.

Abstract: An apparatus for producing and dispensing a cold product comprises a scraper member operable to scrape a forming wall which is maintained near or below freezing temperature. A substance comprising the product in fluid form is directed to the scraper member and sprayed onto the forming wall during relative movement between the piston member and the wall where it forms a thin layer and the scraper removes the formed product. A cleansing fluid is selectively supplied in one instance to cleanse the apparatus between different substances dispensed, and in another instance, to cleanse and sanitize the apparatus.

Abstract: A swimming pool inlet location control is presented. The control comprises a flexible tube which is coupled between the prior art swimming pool inlet and the location where it is desired to bring in the incoming water. The flexible tube includes coupled to it a weight and a float which are utilized by the operator to place the inlet at exactly the point where it is desired. The tube includes a variable size quick release coupling means capable of coupling an adaptable to all pool return lines.

Abstract: Apparatus for cleaning the interior of the tank comprising a spray head which can be inserted into the tank, the head having spray arms which are rotated about a vertical axis by a shaft driven by a motor and are rotated about a horizontal axis through only substantially 180 degrees by gears in mesh with gear racks carried by a frame connected by a piston rod to a piston movable within a cylinder attached to the underside of a plate which mounts the spray head to the tank, the spray head being fed selectively with water from a tank and chemical cleansing liquid from a tank by a valve controlled system which includes a heater for heating water and a heat exchanger for heating the chemical cleansing liquid, said system including a pressure pump for supplying the water and liquid to the spray head and a scavenge pump for removing liquid from the tank.

Abstract: A cleaning head for connection at bottom surfaces of a swimming pool to an automatic pressure control system includes a chamber and a rotary expansion collar disposed in the chamber. The collar has relatively thin cylindrical walls and an inclined slot extending through the cylindrical wall, allowing the collar to expand in response to increased water pressure produced by the pressure control system. The slot is closed when the collar is relaxed and is opened in response to water being forced under high pressure into an interior portion of the chamber surrounded by the collar. Water ejected from the interior portion through the open slot causes the collar to rotate. As the water pressure increases, the collar expands further until its outside surfaces frictionally engage the chamber wall, stopping rotation of collar.

Abstract: Apparatus for intermittent delivery of a fluid under pressure wherein a plunger having a conduit is disposed in a housing for reciprocal, rotary motion and responsive to fluid pressure at the intake end, by means provided in the plunger pops out of the housing and rotates a pre-selected number of degrees. Means are provided to stop both rotary and axial movement simultaneously.

Abstract: An improved cleaning system for removing residue from the inside walls of a tank by directing a cleaning solvent flow completely over the tank inner walls at a controlled, minimum pressure. The cleaning solvent is directed through a ring assembly, which equalizes the flow of cleaning fluid through a series of equally spaced openings around the outer periphery of the ring assembly, and is supported such that the openings direct the fluid onto the uppermost surfaces of the tank interior wall. The ring assembly includes a series of releasably secured components and a valve for regulating the fluid flow rate through the openings.

Abstract: A decoking apparatus suitable for use on a reaction vessel for the thermal cracking of heavy petroleum oils the apparatus essentially including a rotatable main injection pipe to be disposed in the reaction vessel and having a multitude of jet nozzles along its length, and a second or auxiliary injection pipe positioned in the proximity of the main injection pipe to inject a scrubbing liquid over the outer peripheral walls of the main injection pipe to prevent deposition of coke. The main and auxiliary injection pipes are both supplied with heavy petroleum oil to remove the coke deposition from the reactor wall by the heavy petroleum oil jets from the main injection pipe while wetting the exterior of the main pipe with the heavy petroleum oil injected by the auxiliary injection pipe.

Abstract: For convenience, speed and economy in the reading of submerged water meters, as illuminated reading scope is provided which is extendable to draw in water. The scope is compressed after being placed over the face of the meter to expel the water from its interior in a jet stream which positively flushes the face of the meter so as to render it readily readable. The scope is simple and economical.

Abstract: An automatic cleaning apparatus for swimming pools in which one or more jet streams of liquid are maintained at or near the interior floor surface of the pool to agitate dirt settling to the floor of the pool. The jet streams are rotated 360 degrees through an air actuating mechanism with air being introduced into the jet streams intermittently to increase their agitating action and to help purify the pool liquid.

Abstract: Apparatus for cleaning a swimming pool wherein one or more automatically controlled water jets are strategically spaced about the floor of the pool, their periodic operation and their direction being controlled by air-actuated means in a manner which optimizes their effectiveness.

Abstract: Apparatus is disclosed for cleaning the inside and outside surfaces of a cooking pot. The apparatus includes an upwardly extending washer-scrubber unit for washing and scrubbing the inside surfaces of the cooking pot and a downwardly extending washer-scrubber unit for washing and scrubbing the outside surfaces of the cooking pot. The upwardly extending washer-scrubber unit includes a scrubbing element mounted on a rotating sprinkler having two sets of nozzles, one set of nozzles for producing rotational movement of the sprinkler and the other set of nozzles for spray washing the inside surfaces of the cooking pot. The downwardly extending washer scrubber unit includes a scrubbing element mounted on a rotating sprinkler having spray type end nozzles. A washing machine having a plurality of the upwardly extending washer-scrubber units and a plurality of the downwardly extending washer scrubber units for cleaning a plurality of cooking pots either simultaneously or in sequence is also disclosed.

Abstract: Teat cups are connected through a milk transport conduit to a receptacle communicating with a vacuum source, and a storage tank having a drain outlet is adapted to receive milk from the receptacle by way of a pump. A unit for controlling a cleaning procedure is connectable to the receptacle through the milk conduit. The pump can be connected selectively to either the control unit or a sprayer for cleaning liquid which opens into the storage tank; and the drain outlet of the tank can be connected selectively to either the receptacle or a discharge line.

Abstract: A trailer or container washing system includes a wheeled-cart adapted for being driven into and out of a container, such as a meat-hauling trailer. Water is supplied to rotating nozzles and a spray bar mounted to the cart. A valve system, including a a unique valve control, is provided to supply different volumes of water to the nozzles and spray bar during a cleaning process which includes pre-wash, floor cleaning, wash and rinse cycles. The cart is preferably mounted on a moveable or stationary dock for being located at the opening to the trailer or container and novel dock configurations are disclosed herein. One such dock includes an adjustable tip-pan for receiving water and debris draining from the container. Other features of the present invention include a novel hose reel, a specially designed system for controlling the winding and unwinding of the water supply hose as the cart moves into and out of the container, and a valve for diverting water from the nozzles to the spray bar.

Abstract: A drip-proof probe characterized by a telescopic stinger adapted to be connected with a closed system, inserted into a shipping container for toxic fluid for sequentially extracting the fluid from the container and delivering the fluid to the closed system, and thereafter employed for rinsing residue from the container, all without subjecting handlers to contamination through spillage or inhalation.

Abstract: An apparatus for cleaning tanks comprising in combination a rectangular box like frame having front, rear and longitudinal sides defined therein; a plurality of inlet ports at the rear coded for a particular liquid, a plurality of outlet ports similarly coded and similarly aligned at the rear, valves at each of the inlet and outlet ports; a first trunk line connected and fed by all of the valves, a pump fed by said first trunk line; an output line fed by the pump, a sonic or ultrasonic spray nozzle assembly at the end of the output line that is insertable into a tank to be cleaned, a return port in the frame for receiving materials from the cleaned tank, a return pump connected to the return port and a return trunk line fed by the return pump; and, a plurality of return lines connected to the outlet ports with a valve for each line, the valves all connecting to the return trunk line, the return lines feeding waste liquids from the return trunk lines to the outlet ports.

Abstract: A machine for cleaning the sealing surfaces of coke oven doors or door jambs. A high pressure water jet is emitted from a nozzle which is driven on a closed path adjacent the sealing surface, the nozzle block being rotatably mounted with respect to its carriage so that the nozzle block can be driven continuously in the same direction without twisting the water supply hose.

Abstract: A motor driven carriage includes nozzles for directing a cleaning solution to the inside of a trailer on an inward trip and means for stopping movement of the carriage as it approaches the front wall of the trailer. The return cleaning trip is delayed until the rinse water has cleared the cleaning solution from the supply hose. Several alternative dock arrangements are described whereby the carriage-mounted cleaning system may be used for cleaning trailers backed up to opposite sides of the dock, for trailers driven along-side the dock, or for cleaning a plurality of trailers each backed up to the same side of an elongate dock. The heating water and rinse water supply, storage and heating systems of the invention are described, as are the systems for permitting recirculation of water with the various dock arrangements.

Abstract: An automatic cleaning system for swimming pools connected to a source of fluid pressure and having a control system for allowing fluid to escape through the jets in predetermined cycles is provided. The cycling of the jets provides a sweeping action across the inner surface of the pool so that debris and sediment are progressively moved to the pool drain opening. The jets are used in conjunction with a fluid manifold system which permits the cycling to be accomplished. The fluid manifold system is conveniently fixed to the inner surface of existing pools near the water level and adjacent to the coping, or an in ground manifold system may be used in conjunction with in place wall fittings as in the case of new pool construction. The jets may be of an adjustable nature and may remain in a fixed position or allowed to oscillate.

Abstract: A method and a probe adapted to be inserted into a socket valve for an hermetically sealed container having confined therein a body of toxic fluid. The probe is characterized by a cylindrical configuration adapted to be telescopically inserted into a tubular sleeve of a socket valve and supported thereby for rotation relative thereto for thus opening and closing the valve, a container vent for introducing atmospheric pressure into the container as toxic fluid is extracted therefrom, and for washing residue from the internal surfaces of the container subsequent to extraction of the toxic fluid from the container.

Abstract: An improved apparatus for cleaning automatic automotive torque converters in which the torque converter consists of a hollow casing, the casing having a single opening and a hollow hub surrounding the casing opening and extending outwardly from the outer surface thereof, the turbine being provided with a central internally grooved bore extending through the center of the turbine coaxially with the hollow hub, the cleaning apparatus having a fluid reservoir and a stationary support for the casing and a fluid pressure pump for supplying the cleaner fluid to a fluid directing unit having a fluid inlet and a fluid outlet and a motor for rotating the turbine and operating the fluid pressure pump, the fluid directing unit directing the fluid under pressure through a central bore of the turbine and inner surface of the casing to the fluid directing unit and out the outlet opening therein to the reservoir for recycling the cleaner fluid through the torque converter.

Abstract: Methods and apparatus are disclosed for directing a fluid spray against the interior surfaces of a reaction vessel, without the need for operating personnel to enter the vessel, employing orbiting nozzles connected by a conduit to an annular piston assembly all of which are contained in a cylinder housing mounted externally on the vessel. A hydraulic or pneumatic force is alternately applied to one of the piston surfaces, the rate and direction of movement of the piston, and hence the spray nozzles being controlled by the discharge of fluid from the cylinder housing on the opposite side of the piston. In one embodiment the hydraulic pressure used to drive the piston is provided by the same pressurized fluid which is used in the spraying operation.

Abstract: Means for removing deposits formed due to foaming, etc., on the inner walls of a liquid reaction vessel which contains agitating means. Dispersing means are provided attached by arm means to the shaft of the agitator, which are adapted to engage the surface of the reaction mixture, and on increased rotation of said agitator shaft will spray or fling liquid reaction mixture onto said inner walls. The dispersing means can be curved tubular members, channel members, angled plates, paddles, etc. In one embodiment, the dispersing member is spring-biased, normally not engaging said liquid surface, and which will engage said liquid surface upon increased rotational speed.

Abstract: This apparatus has a unitary, flexible hose assembly with an inner hose for discharging fuel or other liquid under pressure into a tank to agitate its contents and an outer hose for withdrawing the liquid and entrained impurities from the tank. A pump and filters on a wheeled cart are detachably connected to the opposite end of the hose assembly to continuously recirculate and clean the liquid without intermediate storage of the liquid before it is returned to the tank. The discharge end of the inner hose and a nozzle thereon project several inches beyond the inlet end of the outer hose. An adjustable valve introduces air into the recirculated liquid stream between the outer hose and the pump inlet to increase the turbulence effect inside the tank. For the same purpose the outer hose may be formed with one or more openings near its inlet end.

Abstract: A blind cavity is thoroughly flushed free of foreign matter by apparatus for pumping hydraulic oil up through a tube of lesser diameter than the access opening to the cavity and returning the exit flow of the contaminated fluid to the pump through a coaxial bore surrounding the tube and of larger diameter than both the access opening and the tube.

Abstract: A carriage is driven from the back to the front of the inside of a trailer, either by rotating nozzles which discharge wash water against the inside of the trailer or by an electric motor. The carriage is guided by two laterally spaced rollers on each side. A hose supplying the wash water and later the rinse water, to the nozzles on the carriage, unwinds from a reel while the carriage is driven into the trailer, but the reel is turned by a motor to pull the carriage rearwardly of and out of the trailer. The trailer rests on an inclined ramp, with the rear edges abutting resilient pads for sealing purposes, the pads being placed around an opening in a partition in the building in which the carriage is housed. A wash tank receives liquid draining from the inside of the trailer, both wash water and rinse water, while a boiler heats the wash water.

Abstract: An automatic swimming pool cleaner comprised of a car adapted to travel underwater along a random path on the pool vessel surface for dislodging debris therefrom. The car wheels are driven by a water powered turbine to propel the car in a forward direction, along the vessel surface. In order to prevent the car from being driven into a position, as for example against a vertical wall, from which it cannot emerge, a wheel geometry is employed which, upon contact, develops a horizontal force component parallel to the vertical wall, to thus enable the car to spin off. Alternatively, or in combination, a water flow produced reaction force can produce a torque to turn the car with respect to the engaged wheel to enable the car to spin off. The car is designed with a low center of gravity and a relatively buoyant top portion so as to produce a torque which maintains the car correct side up when on the pool bottom.

Abstract: Apparatus and method is disclosed for washing out the interiors of truck and trailer bodies. A washer head is carried on an elongate boom which is mounted on a pedestal for traversing movement along a horizontal axis. The boom is moved by means of a drive motor which is in engagement with a chain having its opposite ends secured to opposite ends of the boom. The washer head includes a frame which is mounted on an end of the boom for pivotal movement between elevated and lower positions. The frame is constructed in a four-bar linkage arrangement for movement through a lateral angle to accommodate any misalignment as the boom enters the trailer. A cam engages a hoist arm connected with the frame of the washer head, and a motor is controlled to rotate the cam for raising and lowering the washer head. The washer head mounts a brush which is operated as the boom withdraws from the trailer interior.

Abstract: The present invention relates to apparatus for scouring sludge from a hot wort tank employed in a brewing process with the apparatus including an oscillating hot water pipe located within the tank and provided with jets for sweeping the sludge into a sump, the apparatus also including a drive located on the outside of the tank for oscillating said pipe.

Abstract: Apparatus and method is disclosed for washing out the interiors of truck and trailer bodies. A washer head is carried on an elongate boom which is mounted on a pedestal for traversing movement along a horizontal axis. The boom is moved by means of a drive motor which is in engagement with a chain having its opposite ends secured to opposite ends of the boom. The washer head includes a frame which is mounted on an end of the boom for pivotal movement between elevated and lower positions. The frame is constructed in a four-bar linkage arrangement for movement through a lateral angle to accommodate any misalignment as the boom enters the trailer. A cam engages a hoist arm connected with the frame of the washer head, and a motor is controlled to rotate the cam for raising and lowering the washer head. The washer head mounts a brush which is operated as the boom withdraws from the trailer interior.