Abstract: A drive mechanism for a swiveling fan-jet sprinkler comprising a water-driven turbine, a reduction gear drive and, on the final drive shaft of the latter, a rotary cam member cooperating with a cam follower on the nozzle cylinder. The rotary cam member is preferably a swash plate with an elliptical torus-like rim, engaged by a fork-shaped cam follower. The mechanism may include adjustability of the swivel angle of the nozzle cylinder through a swash plate with an adjustable inclination on the final drive shaft.

Abstract: A swivel arm irrigator includes a tubular swivel arm with radial bores and a support structure formed by two straight metal arms parallel to the axis of rotation of the swivel arm and by two substantially triangular side pieces disposed at the ends of the swivel arm and the metal arms. The ends of the straight metal arms are extractably housed in corresponding seats of the side pieces.

Abstract: A subsoil irrigation system comprising a flexible conduit with a longitudinal row of spaced outlet nozzles passing through the conduit and exteriorly protected by a flat having an edge secured to the conduit, a free edge with a bead, and wherein the conduit is formed on a slight curve so that when it is straightened in position underground the free edge of the flat will lie in intimate contact with the conduit to prevent the intrusion of foreign particulate matter in the nozzles.

Abstract: A swivelling fan-jet sprinkler which is convertible from a coarse sprinkling mode in which it covers a relatively large irrigation area to a gentler spraying mode in which it covers a smaller area, the conversion being achieved by means of a removable spinner cage which surrounds the nozzle cylinder of the sprinkler. The spinner cage has a captive snap ring cooperating with a groove in the nozzle cylinder to produce a detent action for attachment and removal of the spinner cage. The latter is driven by the water jets which are disturbed in the process.

Abstract: A tool for cutting a material along a path with a liquid jet directed onto the material for hydromechanical or hydraulic mining or for cutting mineral or bituminous material is disclosed. The tool includes a housing having an interior chamber with an opening adjacent the chamber. A nozzle body is mounted to the housing through the opening for swiveling motion about a swivel axis. The nozzle body has a first portion including a cylindrical stem symmetrically disposed about the swivel axis within the chamber and a second portion extending through the opening including a nozzle having a nozzle bore for discharging the liquid jet. A drive, operatively connected to the first portion, is provided for swiveling the nozzle body about the swivel axis.

Abstract: A forward motion arresting means is added to a fluid powered lance to reduce the harmful effect of the stopping of the lance forward motion. A plug member mounted on the lance mates with a body member within the housing to prevent fluid flow and reduce the lance forward motion. Rearward motion arresting is achieved by the addition of a reservoir portion which acts as a hydraulic stop in conjunction with the lance piston.

Abstract: A shower device in which the head which carries one or more water-nozzles oscillates around its middle axle, so that the water spray can cover a big portion of the body.The oscillating movement is activated by the water used for the shower.

Abstract: An ornamental lawn sprinkler which includes a figure holding a nozzle of the garden hose, the figure being activated by the moving water so to pivot reciprocally to opposite right and left about a horizontal axis, and at a same time rotate directionally about a vertical axis.

Abstract: A two-piece adjustable dial assembly between a link and a water discharge tube of a sprinkler for causing the rotational movement of the water driven shaft of the sprinkler to be transmitted through the link to the water discharge tube in any selected one of a plurality of different oscillatory cycles of movement. The two-piece adjustable dial assembly includes an arm member molded of plastic material having a mounting portion fixedly secured to the water discharge tube and a cylindrical portion having an axis disposed parallel to the oscillatory axis of said water discharge tube, and a dial member molded of plastic material extending through the cylindrical portion of the arm member and rotatable with respect thereto about the axis thereof. The dial member has a knob portion manually engageable to effect rotation of the dial member, a pivotal connection with the other end of the link and an elongated resilient cantilevered latching portion formed integrally with the dial member.

Abstract: A part-circle sprinkler having a sprinkler head incorporating a nozzle continually oscillates between two positions. The sprinkler head is connected to a transmission driven by an impeller The impeller is driven by a reversible stator which can direct a plurality of channelized streams of water against either side of the blades of the impeller and thereby cause the impeller, sprinkler head and nozzle to rotate in a clockwise or a counterclockwise direction. The reversing stator is controlled by a resilient switching arm operated by adjustable fingers on the exterior of the sprinkler head, which set its limits of rotation. As each limit of rotation is reached, one finger exerts a torque on the switching arm. The torque causes the arm to twist until it exerts sufficient force on the reversing stator to overcome the force of the water on the stator vanes and thus reverse the direction of the stator. The sprinkler head then rotates in the opposite direction, which brings the other finger toward the switching arm.

Abstract: A lawn sprinkler having a perforated spray hose that is selectively flexed into a desired curvature and secured fixedly in the desired curvature in order to produce a variable water spray pattern, the device including, in one design, an adjustable jack mounted on rotatable adapters at the hose ends.

Abstract: A lawn sprinkler is disclosed of the kind in which a tubular perforated rocking member dispenses irrigation water, the improvement consisting in that the mechanisms which impart to the tubular perforated member the rocking motion are enclosed in a sealed box the lid of which is conveniently removable, the gears and other component parts of the rocking mechanism being so arranged as to be capable of being individually removed and reassembled, each component part being univocally positioned. Thus maintenance, cleaning and replacement of the component parts of the rocking mechanism becomes both an easy and convenient operation.

Abstract: A snap-action toggle valve reverses the direction of an oscillating sprinkler powered by a paddle-piston motor. Adjustable stops on the sprinkler tube trip the valve at the end of each sweep, alternately opening left and right motor chamber channels interconnected to a sprinkler supply channel feeding the sprinkler tube without interruption. A special vane on the sprinkler tube where it intercepts the sprinkler supply channel prevents vortex action. The edges of the paddle-piston are sealed to the motor chamber by a flanged slip-on wiper.

Abstract: For overcoming the dead centers of the motion of an oscillable sprinkler of the kind used for watering "greens", gardens and the like, in which the swing of the sprinkling arm is determined by the water itself, an oval cam mechanism is provided which can also limitedly adjusted as to its angular phase. A more uniform watering density can be obtained the whole watered plot throughout.

Abstract: The present invention discloses a reversible turbine-driven sprinkler head which includes a vaned turbine motor for rotatably driving a nozzle. The turbine is unresponsive to the norml flow of fluid through the sprinkler head to the nozzle. Switchable deflection means are included for deflecting the flow of fluid through the body against the turbine to cause rotation thereof in either of two directions. By deflecting the fluid flow to cause the turbine to rotate in one direction, the nozzle is rotated in one direction. By switching the direction of fluid deflection to cause the turbine to flow in the opposite direction, the nozzle is rotated in the opposite direction. Adjustable means are provided for setting the positions relative to the rotation of the nozzle whereat the deflection of the fluid flow is reversed, whereby the nozzle is caused to repeatably oscillate between a first and a second position.

Abstract: An oscillating lawn sprinkler which gives more uniform distribution of water and includes a base, a water driven motor mounted in the base, a crown gear attached to the base, a pinion on the gear meshing therewith, a link having one end connected to the center of the pinion and the other to the drive shaft of the motor concentric with the gear and a connecting rod pivoted to the perimeter of the pinion gear and to one end of rocking arm of the sprinkler outlet.

Abstract: An oscillating wave type lawn sprinkler having a spray tube that is angularly oscillated about its axis by a spray tube linkage assembly that is driven by a water-actuated motor. The linkage assembly is coupled to the spray tube by a releasable coupling that disengages whenever the spray tube is subjected to an external force which exceeds a predetermined magnitude, thereby permitting the spray tube to angularly deflect out of its normal alignment. Normal alignment of the spray tube is restored by manually rotating the spray tube until the coupling is again engaged.

Abstract: In an oscillating sprinkling device, control of the change of direction of oscillation of a sprinkler is achieved by deviating a jet of the sprinkling liquid impinging a driving turbine to change the direction of rotation of the turbine.

Abstract: An adjustable nozzle for rotary pop-up sprinklers which allows an operator to accurately position the arc of coverage to any desired location while the pop-up sprinkler is in operation without rotating the entire sprinkler relative to the riser on which it is threaded.