Abstract: A water distribution system for spraying a plurality of fine streams of water in a relatively uniform manner onto an ice forming surface. A hollow spraying tube is rotationally and coaxially disposed in a shielding tube of larger diameter. The shielding tube has an elongate slot extending substantially the axial length of the spraying tube such that streams of water are sprayed through those orifices in the spraying tube not shielded by the shielding tube and through the elongate slot. The width of the slot determines the angular arc of spray from the system. The shielding tube is adjustably secured to one side of a turbine housing to adjust the spray direction. A turbine blade assembly is rotationally disposed within the turbine housing and is operatively connected to the spraying tube. Pressurized fluid through an inlet of the turbine housing rotationally drives the blade assembly and the spraying tube and the water is discharged in an unpressurized condition through an outlet of the turbine housing.

Abstract: There is provided a drive for an orbital nozzle comprising a housing having a fluid inlet and containing a fluid driveable impeller from which the fluid, in use of the drive, flows through a passage within the housing, an epicyclic rotary speed reducing mechanism in the housing, an output shaft driven by the epicyclic at speed reduced below the impeller speed, an element driveable by the output shaft mounting the nozzle for rotation, including an element for delivering fluid from the passage to the nozzle, as well as an orbital nozzle unit which incorporates such a drive and a hydraulic cleaning head which incorporates such a drive or orbital nozzle unit.

Abstract: A spray nozzle construction which includes a nozzle holder, a nozzle sleeve enclosing the nozzle holder, a nozzle cap arranged at a front end of the nozzle holder, and an annular channel, formed by the nozzle sleeve and nozzle cap, extending outwardly in a radial and axial direction. The nozzle cap is freely rotatable about the axis of the nozzle construction with a pneumatic drive being provided for rotatably driving the nozzle cap.

Abstract: Improvements in sprinkler systems having fluid under pressure flowing therethrough and a sprinkler head with a pop-up nozzle actuated by fluid pressure. An impeller is actuated by the fluid flow to rotate the nozzle and thus rotate the spray of fluid threfrom. A transmission is disposed between the impeller and the nozzle for transmitting rotation of the impeller to the nozzle. Means are provided for regulating the rate of rotation of the impeller, and then the nozzle, under varying volume flow of fluid being sprayed thereout. This may be accomplished by a substantially constant velocity of incoming fluid impinging on impeller blades.

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: A rotary sprinkling system which is configured to minimize the accumulation and detrimental effects of debris, and which comprises a pop-up nozzle head secured to an inner housing slidably received within an outer housing and retained by the compressive force of a spring, such inner housing enclosing an impeller driven transmission subjected to only low pressure drops and having a speed-reducing gear train isolated from water flow, a simplified and easily adjustable direction controlling mechanism substantially inaccessible to intermeddlers, and a manually adjustable by-pass throttle to control the flow velocity of water driving a water-wheel impeller.