Abstract: A swimming pool bottom flushing device comprising a tubular supporting arrangement attached to a pipe arranged at the bottom of a swimming pool, and a water ejector nozzle axially fitted into said supporting arrangement in a rotatable, vertically shiftable arrangement. This device is characterized in that the nozzle is formed by an open-ended tubular body provided at least with one opening in its periphery and fitted with a tubular, rotationally positionable plug peripherally provided with openings of different diameters provided to selectively face the openings of the tubular body in order to control the outflow of the water jet being ejected for the flushing of the swimming pool bottom. The top plug is selectively secured by means of a bayonet attachment into a number of positions when fitted to the tubular body of the nozzle.

Abstract: A fluid distributor valve including a chamber formed by a body and bonnet and having an intermediary plate through which a central shaft extends, a rotor being fitted around said central shaft and being submitted to the action of the fluid flowing into said chamber, said body having fluid outlet bottom orifices being each closed by a respective stopper, the stoppers being prised open by activation of a reducing gear connected to said rotor, This valve includes a controlling and arresting device by which the fluid passage towards the rotor is controlled and can even be totally blocked in order to thus adjust the time during which each outlet will be held open, and also in order to keep a given outlet open and all of the remaining outlets closed when the valve has been arrested.

Abstract: A swimming pool bottom flushing device comprising a tubular arrangement attached to the pipe arranged at the swimming pool bottom, and a water ejector nozzle axially fitted into said supporting arrangement in a freely rotatable, vertically shiftable arrangement. The device is characterized in that the nozzle supporting arrangement comprises a socket attached to the inside of the pipe and does also incorporate a fitted-in ball-bushing housing the nozzle. Said socket has on its inner surface alternate, longitudinal protrusions some of which have a concave profile in the vicinity of one of the socket's openings, whereas the other protrusions have said concave profile in the vicinity of the opposed one of both socket's openings.

Abstract: The invention relates to an adjustable lamp which can be fitted into a wall such as the, wall of a swimming pool or other water tank the bulb of the lamp can be positioned so that it is parallel to the horizontal, or have with a downward slant, typically between about 3.degree. to about 8.degree.. The lamp can include an elbow duct for receiving electric cables to the lamp. The lamp can be directed in at least eight different angles relative to the point on the wall where these cables reach the lamp by positioning its lighting axis so that it is parallel to the horizontal, or with a downward slant, while the elbow duct for electric cables to the lamp, can be directed in eight different angles, towards the point on the wall where these cables reach the lamp.