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: Method and apparatus for injecting foam into a pipeline. Foam is produced and delivered under pressure to the inlet of a flexible foam-conducting tube. An inflatable plug slidably encircles the tube, so that the tube can be adjusted to extend any desired distance beyond the plug. The plug can be enlarged by inflation to bear against the wall of the pipe and also against the wall of the tube, so as to prevent the foam from flowing back beyond the plug.

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

Abstract: A high pressure fluid delivery system is disclosed in which a source of fluid is connected by a rotating mechanism to an elongated lance or a cleaning head each of which includes one or more outlet nozzles for providing a cleaning jet of fluid. The lance or spray head is rotated by the rotating mechanism to provide substantially complete cleaning of the inside of a tubular member. The rotating mechanism may also be connected between a hose reel and the fluid source to permit the payout of a hose from the reel to the fluid delivery apparatus of the system.

Abstract: In a pipe cleaning apparatus with a rotatable lapped coil spring for insertion into a pipe to be cleaned, a flexible tube is accommodated in the coil spring throughout a length thereof which at its one end is connected to an injection nozzle in communication with an end of the flexible tube which at its opposite end is connected to a high pressure water supply source.

Abstract: Apparatus to apply dyes to a moving material to print the same which employs dye applicator gun bars to direct a plurality of streams of dye onto the moving sheet in a predetermined pattern, and wherein means are provided for accurately positioning and adjusting the gun bars on their support frame to facilitate accurate placement of the dye streams on the moving material during the printing operation.

Abstract: A tube cleaning device including a water lance and a movable carriage with a driving mechanism for extending and retracting the lance, lance guides and a device for supplying water under pressure to the lance; the driving mechanism being located close to the lance tip when the lance is in its retracted position.

Abstract: A drain clearance device comprising a length of flexible hose having at one of its ends means for connecting it to a source of water under pressure and at the other end a nozzle of elliptic contour longitudinally thereof and of a size to fit into a drain pipe. Said nozzle has four circumferentially spaced, slot-shaped orifices in the flanks of its rounded front end that are adapted to emit flat jets of water under increased pressure forwardly at an oblique angle against the inner surface of the drain pipe to dislodge and flush away any foreign matter that may have accumulated on the wall of the pipe and impede the free flow of water through the pipe. Intermediately of its ends the hose carries slidably mounted thereon means that may be manipulated to close the space around the hose to block back flow of water to the entrance opening of the drain during operation of the device.