Abstract: A sprayer for repairing a refractory lining comprising a vertical, axially movable and rotatable nozzle pipe; a stationary housing disposed about a portion of the pipe; a pair of parallel, connected turntables rotatably supported within the housing axial with and through which the pipe freely passes; motor-driven wheels mounted on the undersides of the turntables for supporting the pipe and driving it in either axial direction relative to the housing; and the combination of a first gear mounted on the upperside of one turntable coaxial with and through which the pipe freely passes intermeshed with a second, motor-driven gear mounted on the housing for rotating the pipe together with the wheels.

Abstract: A lining gun for spraying refractory lining on the interior of ladles and the like includes an elongated conduit which is suspended downwardly into the interior of the ladle. A reversible air motor rotates the conduit about its axis in one direction and then the other for approximately 360.degree. in each direction. A first pair of mixing nozzles mounted adjacent the bottom of the conduit direct refractory material passing through the conduit onto the bottom of the ladle and a second pair of nozzles direct the refractory material onto the side walls of the ladle. A flow splitter and diverter valve mechanism mounted within the conduit adjacent the nozzles selectively allows the refractory material to pass either through the first pair of nozzles or the second pair.

Abstract: Our improved nozzle mounting comprises a support member for the nozzle secured to the projecting end of the innermost or granular material carrying conduit. The nozzle is mounted on a horizontally disposed pivot, carried by said support member. Granular material is conveyed from the lower end of the granular conveying pipe to the nozzle through a flexible member and water is supplied to the mixing nozzle by means of a flexible water pipe or hose. Our improved mixing nozzle mounting is simpler in construction than the one shown in our aforesaid patent and hence is cheaper to construct and maintain inasmuch as we have eliminated various rotary seals, gears and the like.

Abstract: The bottoms of transport barge tanks when emptied of high consistency treated sludge are automatically and quickly hosed clean of heavy sediment, as much as a foot deep without labor and with an economical use of a reversely directed progressively self-rotated stream of water that is easily serviced.

Abstract: A tank cleaning machine which comprises a nozzle manifold having one or more nozzles, that can be fed into and retracted from a tank while rotating or oscillating while cleaning fluid is supplied from a hose so that jet cleaning streams are directed to only those areas inside the tank that require cleaning. A very important feature of this device is to be able to clean very long horizontal or high vertical tanks and have the nozzles move along the tank greatly reducing the distance that the jet cleaning streams must travel after leaving the nozzles resulting in greater impact scrubbing action and reducing the breaking up of the stream to give very high efficiency. The travel feature of the nozzle manifold also permits the addition of a mechanical scrubber, or scraper with a trip arm to allow removal of sludge as the manifold is removed from the tank.

Abstract: A fluid delivery system is disclosed utilizing a high pressure cleaning fluid, such as a blast of high pressure water, to remove material from the inside wall of the stator of a relatively large electric motor. In the preferred embodiment of this invention illustrated, the fluid delivery system includes a nozzle carriage having a high pressure nozzle movable along the length of the inside wall of the stator to be cleaned, a rotating carriage frame for rotating the nozzle about the inside wall of the stator to be cleaned, a vertically movable wall upon which the rotating carriage frame is mounted, and a base frame or skid on which the vertically moving wall is mounted. The nozzle can be positioned to move along a desired longitudinal path along the inside of the stator, such as along longitudinal grooves where the material to be removed is located.

Abstract: Apparatus is provided for manipulating and controlling the movement of a tool, and specifically a spray gun, through a plurality of predetermined motions. The apparatus includes, in a preferred form, a rectangular frame having crossing supporting rods extending between opposite frame members. A mounting member is slidably mounted on crossing portions of the rods with the spray gun carried thereby. The spray gun is connected to the mounting member in a manner such that it can be moved toward and away from the mounting member in a direction perpendicular to the plane of the frame. The spray gun can also be pivotally moved on a first axis which is parallel to the plane of the frame and pivotally moved on a second axis which can also be parallel to the frame and perpendicular to the first axis. The connecting means also enables at least a spray head of the spray gun, if not the whole spray gun, to be pivotally moved about an axis which is perpendicular to one of the aforesaid two axes.

Abstract: An improved apparatus for controlled application of granular refractory material to the linings of ladles, furnaces, and other open top vessels employed in the handling of molten metals. The apparatus comprises a generally vertically arranged pair of telescopically related conduits, there being a nozzle on the lower end of the innermost conduit. Granular material is supplied to the upper end of the innermost conduit and water is supplied through a member to the upper end of the outer conduit and from the lower end of the outer conduit to the nozzle. Means is provided for rotating the conduits and hence the nozzle. Other means is provided for raising and lowering the nozzle and the entire apparatus may be suspended from a crane or the like over the vessel whose lining is to be coated, repaired, filled, etc.

Abstract: The lining of a furnace is automaticlly repaired by use of a movable transport car on which a vertically disposed spray pipe is capable of being vertically displaced along its longitudinal axis and of being rotated about its longitudinal axis. The transport car is moved to a position underlying a furnace, and the spray pipe is elevated into the furnace to thereby dispose a spray nozzle on the end of the spray pipe within the furnace. The spray nozzle is directed to spray refractory material onto the abraded, eroded, and spalled areas of the refractory lining within the furnace.

Abstract: A sprinkler head comprising a stationary sprinkler body structure defining an inlet adapted to be connected with a source of water under pressure and a water-tight chamber communicating with the inlet, a movable tubular water distributing structure providing an inlet and a spaced discharge nozzle in flow communication relation therewith, a ball and socket connection for (1) mounting the water distributing structure on the sprinkler body structure with the inlet thereof within the chamber and the discharge nozzle exteriorly of the chamber for (a) rotational movement about a generally upright axis and (b) orbital movement in which the rotational axis of the water distributing structure describes a pair of cones whose apexes join at a point coinciding with the center of the ball and socket connection, and (2) providing a water-tight seal for the chamber between the sprinkler body structure and the water distributing structure in any position of movement thereof, a swirl plate within said chamber and an inverted

Abstract: A tank cleaning device, wherein a supply tube delivers cleaning fluid into a flushing head rotatable about the tube axis and then into the nozzle of a nozzle unit mounted in the flushing head for rotation about an axis perpendicular to the tube axis, comprises a hydraulic brake cylinder coupled to the nozzle unit for variably controlling the rotational speed thereof in dependence on the rotational position of the nozzle unit. A crank couples the brake cylinder (or piston) to the shaft on which the nozzle unit is rotated for oscillating the cylinder (or piston). A mechanism couples the piston (or cylinder) to the flushing head for rotating the flushing head about the supply tube axis upon oscillation of the cylinder (or piston).

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: Water jet apparatus comprising essentially a movable support platform swingable into alignment with such standpipe, water pipe means mounted on such platform, and slideable thereon into and out of said standpipe, power operated means for moving said water pipe, water jet means mounted at the end of said water pipe for directing one or more high pressure water jets substantially normal to the axis of said water pipe for breaking up deposits within said standpipe, coupling means in said water pipe whereby a front portion, carrying said jets may be rotated relative to a rear portion, power operated means coupled with said front portion of said water pipe for rotating the same, water supply means coupled to said water pipe, a high pressure pump for pumping water to said water supply means, water tank means for supplying said pump, recycle duct means extending between said water supply means and said tank for recycling water from said pipe back to said tank, when water is not required for said water jets, and valv

Abstract: An apparatus for spray washing the interior of vessels includes a body member secured to a fluid supply line, and a housing rotatably secured to the body and in flow communication therewith. A hub is rotatably secured to the housing on an axis transverse to the body-housing axis, and a plurality of nozzles extend radially from the hub perpendicular to the hub axis. A pair of reaction jets also extend radially from the hub to drive the hub in an oscillating motion. The hub is secured to a spindle which is joined to a lever which operates an over center toggle. The toggle operates a valve which alternates the fluid flow to the reaction jets to produce the oscillating hub motion. The lever also drives a ratchet mechanism which incrementally rotates the housing about the body member.

Abstract: An automatic high pressure spray cleaning apparatus and method for rapidly and efficiently removing material coated on the surface of an object are described. In accordance with the invention the axis of the cleaning liquid spray forms an acute angle with the object surface and such angle, as well as the distance along such axis between the spray nozzle and the object surface, are both maintained substantially constant over a given surface area. In addition, the pressure of the cleaning liquid at the surface of the object is also maintained substantially constant over such given area. The spray nozzles are automatically moved rotationally about a cleaning axis and longitudinally along such axis to scan over the object surface along a predetermined path while maintaining the spacing distance and angle substantially constant during rotation of the nozzles about the cleaning axis at a given longitudinal position on such axis, by motor operated drive means which may be controlled by an electronic computer.

Abstract: An upstanding support affixed to the floor of a plant adjacent an electric-arc furnace and having a truss member rotatably attached thereto. The truss member at its free end has a vertical support member rotatably attached thereto and upstanding therefrom. The vertical support at its upper end has affixed thereto a radius arm member. The radius arm has the same radius of curvature as the roof lining of the electric-arc furnace. A refractory spraying unit is attached to, and is movable back and forth along the length of, the radius arm. When the roof of the electric-arc furnace is swung outwardly of the furnace between heats, the truss is swung about the upstanding support to carry the vertical support and radius arm directly beneath the furnace roof. Rotation of the radius arm and movement of the spraying unit along the length of the radius arm causes the roof lining to be coated with refractory.