In an apparatus for the hydrotherapeutic treatment of breasts, the spray unit which rotates in the bottom of the conventional hollow bell-shaped body is made of two frustro-conical members, preferably of molded plastics, which are applied against each other, one at least of their facing sides being formed with grooves which realize in the assembly radial canals and tangential nozzles adapted to propel the unit by reaction effect, while the inner frustro-conical member has radial lines of perforations which communicate with these canals to produce the conventional inwardly directed treating jets. The central annular portions of the frustro-conical members are mounted on a common hub whereon they define an inner annular space which receives water under pressure from the fixed tubular shaft of the apparatus through radial perforations provided in same and through radial passages provided in the hub. The latter may be made of two sleeves the abutting ends of which are formed with indentations which protrude axially and radially.
A massage device for the bust comprising a bell shaped housing having a bust supporting cage or basket within it. A rotor is provided with a plurality of jets or jet arms arranged for rotation in the space between the housing and the cage. The jets on the jet arms are oriented to provide for a massaging effect with a stream of water flowing therefrom, at the same time utilizing the jet streams for driving the arms rotatively. The directions of the streams from the arms are oriented at different angles to a plane parallel to the arm tangential to a frusto-conical surface. Flow in one direction primarily acts to drive the arms rotatively while the flow in the other directions is utilized primarily for massage.
A hydrotherapy apparatus having a single nozzle which is continuously rotated through a circular path by a water wheel. Conduits divide a source of pressurized water into first and second portions, the first portion flowing past the water wheel before rejoining the second portion. Thereafter both portions flow through a venturi where they are aerated, through the center of the rotating flywheel, and through the rotating nozzle from which they are discharged. A valve can be manually adjusted for varying the amount of pressurized water that flows past the water wheel to alter its speed of rotation.
A hydrotherapy apparatus incorporating a water wheel coupled to a reduction gear assembly for providing a strong jet of water at an extremely uniform rate of rotation, even at slow rotational speeds. The water wheel has a relatively small diameter so that it may be driven at a high rate of speed to minimize any rotational speed variations of the water wheel itself. The water wheel is non-rigidly coupled to the drive shaft of the nozzle by a helical gear which causes the drive shaft to rotate at a slower rate than that of the water wheel.
