US3680780A

US3680780A - Ablutionary appliances

Info

Publication number: US3680780A
Application number: US118108A
Authority: US
Inventors: Dennis C Arbon
Original assignee: Kohler Mira Ltd
Current assignee: Kohler Mira Ltd
Priority date: 1971-02-23
Filing date: 1971-02-23
Publication date: 1972-08-01
Anticipated expiration: 1989-08-01

Abstract

An ablutionary appliance comprising a water catchment member in which water cannot be retained, a water delivery pipe which is adjustable so that its outlet end can be disposed in a range of different positions over the catchment member, and at the outlet end, an adjustable spray nozzle is mounted for controlling the rate of flow of water and the trajectory of the water spray.

Description

United States- Patent Arbon 1451 Aug. 1, 1972 541 ABLUTIONARY APPLIANCES [72] Inventor: Dennis C. Arbon, Cheltenham, England [73] Assignee: Walker Crosweller 8: Company Limited, Cheltenham, England [22] Filed: Feb. 23, 1971 21 Appl.No.: 118,108

[52] US. Cl. ..239/26, 239/30, 239/587 [51] ..E03b 9/20 [58] Field of Search ..239/24, 26, 27, 28, 29, 30,

[56] References Cited UNITED STATES PATENTS 2,790,632 4/1957 Mellettew, ..239/26 1,109,441 9/1914 McGowan ..239/26 X 2,011,446 8/1935 Judell ..239/587 X An ablutionary Ward ..239/587 2,570,635 10/1951 Beyer, Jr ..239/26 2,878,059 3/1959 Limle ..239/26 2,786,718 3/ 1957 Middlestadt ..239/587 X 3,032,272 5/1962 Nesky ..239/26 X Primary Examiner-M. Henson Wood, Jr. Assistant Examiner-Thomas C. Culp, Jr. Attorney-Imirie and Smiley [57] ABSTRACT appliance comprising a water catchment member in which water cannot be retained, a water delivery pipe which is adjustable so that its outlet end can be disposed in a range of different positions over the catchment member, and at the outlet end, an adjustable spray nozzle is mounted for controlling the rate of flow of water and the trajectory of the water spray.

5 Claim, 4 Drawing Figures PATENTEUAUG 1 I972 SHEET 1 BF 3 IwvEN-raR DENNIS d. ARBoN 1 ABLUTIONARY APPLIANCES This invention relates to ablutionary appliances primarily intended for washing any selected one or more parts of the human body.

The most common and traditional method employed by any person when washing his or her hair, face and/or any other upper body part includes, first of all, running a supply of water from a hot water tap and/ora cold water tap, or a mixing tap or valve, into a wash basin where the water is retained by closing the waste outlet of the basin with a plug or stopper: then soap or analogous cleansing medium and some of the water in the basin, are applied to the body part or parts either by the persons hands, or by a sponge or flannel: finally, the water is used for swilling the cleansing medium from the said part or parts into the basin. However, the method has the disadvantages that, first, it is not entirely efficient because, both during the application of the cleansing medium and the subsequent swilling operation, the water in the basin is contaminated by the medium so that, unless the contaminated water is discharged through the waste outlet and replaced by fresh water from the tap or taps, it is difficult to swill the medium from the body part or parts in its entirety: secondly, the method is inconvenient since, with the exception of the hands and forearms, it is not suitable anthropometrically for washing the upper parts of the human body: thirdly, since in the majority of instances, the method results in more water, particularly hot water, than is necessary being used, it is uneconomical: and, fourthly, the method is unhygienic since, when drying the swilled body part or parts with a towel, the cleansing medium not removed by the swilling operation is liable to be transferred to the towel and, particularly when the water is hard, scum formed on the surface of the contaminated water is liable to be deposited on the surface of the wash basin.

On the other hand, although the above disadvantages are eliminated, at least to a large extent, by washing in a conventional showerbath because the contaminated water does not accumulate in a basin or equivalent water catchment member and the cleansing medium may be swilled, without undue difficulty, from the head, arms and trunk by uncontaminated water, such a showerbath is not suited anthropometrically for washing, or for swilling the cleansing medium from, the remaining parts of a human body, particularly the peripheral zone.

The principal object of the present invention is to provide an improved ablutionary appliance which eliminates, or at least minimizes, the above disadvantages.

In accordance with the said invention, an ablutionary appliance comprises a water catchment member having an uncontrolled waste outlet so that it is unable to retain water received therein, a water delivery pipe which is adjustable so as to locate its outlet end in any one of a range of different predetermined positions above the catchment member, and an adjustable spray nozzle mounted on the said outlet end and adapted to control the rate of flow of water therethrough and the trajectory of the water spray discharged therefrom, so as to ensure that the spray is received by the catchment member.

Preferably, the spray nozzle comprises a head mounted upon the outlet end of the pipe and having a passage whereby communication is established between the interior of the pipe and a hollow body which, at one end, is assembled to the head in coaxial relationship to the passage, is rotatable manually relatively to the head and about the common axis between two extreme positions spaced apart, is formed, in the opposite end, with a system of perforations opening to a flat external body surface inclined to the said axis, and is provided with means adapted to control the flow of water through the nozzle so that the flow is at a maximum when the body is located in a selected one, is restricted when the body is located in the other, and is either cut off or is negligible while the body is being turned from either one to the other, of the two extreme positions.

In order that the invention may be understood and carried into practice more readily, three typical embodiments thereof will be described with reference to the accompanying drawings wherein:

FIG. 1 is an elevation partly in section, of an ablutionary appliance primarily intended to be used for washing the upper parts, namely the hands, arms and head, of a human body.

FIG. 2 is a sectional elevation, on an enlarged scale, of the water supply pipe and spray nozzle of the appliance shown in FIG. 1.

FIG. 3 is an elevation of an alternative appliance primarily intended for use as a showerbath.

FIG. 4 is an elevation of another alternative appliance primarily intended to be used in conjunction with a conventional showerbath.

The appliance shown in FIG. 1 comprises a catchment member 1 consisting of a shallow basin having, at least along its rear upper edge, an external flange 2 which is located in, or is parallel to, the plane of the mouth of the basin, is bounded by upwardly and downwardly extending walls 3, 4 and has a central aperture 5 therein. A waste water outlet 6 is located in the bottom of a well la in the floor of the basin and the remainder of the floor is inclined downwardly to the periphery of the well so that any water received by the basin, enters the well and is discharged through the outlet.

A cylindrical, externally threaded bush 7 extends through and is clamped within, the flange aperture 5.

A delivery pipe 8 is curved along the major portion 8a of its length, and this portion extends through and is displaceable lengthwise of the bore of the bush, is a water-tight, sliding fit within a resilient sealing ring 9 (see FIG. 2) installed in the upper end of the bore, and makes telescopic engagement with an intermediate pipe 10 which is curved along its length at the same radius as, and is concentric to, the said major portion, is coupled by its upper end to and concentrically of the lower end of the bush in a water-tight manner by a cap nut 11 and resilient washer l2, and of which the internal diameter exceeds the external diameter of the delivery pipe.

The lower end of the intermediate pipe is connected in a water-tight manner by a union 13 to one end of a supply pipe 14 (see FIG. 1) into the opposite end of which water is adapted to be fed from a hot and cold water mixing valve of any known and suitable kind (not shown). Relative rotation between the two curved pipes 8 and 10 is prevented by providing the intermediate pipe with an internal longitudinal rib 10a which engages a recess in an external circumferential rib a on a castellated and ported cap 15 secured to the lower end of the delivery pipe, and making a sliding fit within the intermediate pipe.

Inadvertent longitudinal displacement of the delivery pipe within the intermediate pipe by water fed into the interior of the latter from the supply pipe, is prevented by a resilient bell-shaped gland 16 having, at its larger diameter end, an external flange which is clamped between the washer 12 and the upper end of the intermediate pipe, whereas the smaller diameter end encircles and is urged into resilient, circumferential abutment with the delivery pipe internally of the intermediate pipe.

The remaining and relatively short portion 8b of the delivery pipe extends from and is inclined to, the upper end of the major curved portion and the spherical head 17a of a spray nozzle 17, has a diametrical passage 17b extending therethrough and is secured to the free extremity of the said relatively short pipe portion so that the passage is in uncontrolled communication with the bore of the pipe 8.

The spray nozzle comprises, in addition to the spherical and passaged head, a substantially cylindrical adaptor sleeve 18 which is screw threaded part way along its length from its end adjacent to the head and has a circumferential rib 18a within its threaded end portion and, in its external surface beyond the said threaded portion, a part circumferential groove 18b which spans an are slightly in excess of l 80.

A substantially cylindrical liner 19 which is a close fit within the threaded sleeve portion and the rib and extends beyond the rib towards the opposite end of the sleeve, is secured against rotation relatively to the latter, is formed with an internal concave, annular seat 19a in its end adjacent to the head and with a longitudinal port 19b in its wall; the port extends from the rib to the opposite end of the liner and, due to the presence of the rib, an annular clearance 170 is created between the internal surface of the sleeve and the ported portion of the liner.

The sleeve and liner assembly is mounted upon and secured against movement relatively to, the spherical head, by an annular cap 20 of which the internal periphery seats upon the head and which is screwed on to the threaded sleeve portion until the seat 19a abuts and is clamped against the head. External radial vanes 19c on the liner fit within notches in the sleeve to locate the liner axially of, and prevent its rotation relatively to, the sleeve.

A cup 21 is socketted, mouth foremost, part way into the liner end remote from the head. The wall of the cup is a rotatable fit within the liner, reaches beyond the liner port 19b and is formed with two diametrically opposed, longitudinal ports 21a, 21b both of which are of the same width as the liner port; the port 21a is considerably longer than the port 21b and terminates, at its end adjacent to the cup base 210 in a considerably narrower seepage port 21d which is located beyond the liner and reaches to the said base. Radial vanes 2le provided on the external surface of the cup base engage radial slots 22a in a nozzle body 22 which is screwed on to and is rotatable about the threaded portion of the adaptor sleeve and is a close fit around the unthreaded and grooved portion of the said sleeve.

The engagement of the vanes 2le in the slots 22a ensures that the cup rotates with the nozzle body and that the base of the cup is unable to choke the inner end of a

discharge passage

22b, 22c formed in the body on the opposite side of the said slots to the spherical head, and thereby prevent water flowing from the annular clearance to the passage.

The inner portion 22b of the body passage is coaxial to the sleeve, liner and cup whereas the axis of the remaining and outer portion 220 of the passage is inclined to the common axis of the sleeve, liner and cup at an angle of, or in the region of, 135. The said outer passage portion is spanned by a wall 22d having three concentric and annular groups of perforations 22c through which water is adapted to be sprayed from the nozzle.

The nose of a locating screw 23 carried in the nozzle body engages in the groove 18b so that the body and cup may be turned manually through around the sleeve and within the liner, between two extreme positions in one of which, as shown in FIG. 2, the shorter cup port 21b registers with the liner port 19b, to permit a restricted flow of water from the head passage 17b the registering ports, and the annular clearance 170, to and through the

body passage

22b, 22c preparatory to being sprayed from the nozzle: in the other of the said two extreme positions of the body and cup, the longer cup port 210 registers with the liner port to permit a maximum flow of water from the head passage to the body passage. When the body and cup are located between the two extreme positions and neither of the cup ports overlaps the liner port, the flow of water to the body passage is cut off except for a relatively small flow which is able to seep through the narrower cup port 21d to give a visual indication that water is being supplied to the nozzle through the pipe 8.

If desired, the rim of the screw-threaded portion of the adaptor sleeve 18 may be formed with four radial recesses which are spaced apart by 90 so that, before screwing the head-supported cap 20 on to the sleeve, two diametrically opposed radial studs projecting from the head, may be engaged in either of the two pairs of aligned recesses and, therefore, the sleeve may be secured in either of two alternative positions, spaced at 180 apart, relatively to the head.

Preferably and as shown in FIG. 2, the perforations 22e are formed by a plurality of concentric rings which fit one within the other and within the outer body passage portion 22c the internal and/or external periphery of each ring having a system of grooves extending between its opposed faces. The rings are retained in the said passage by a bolt 24 extending through the innermost ring into engagement with an integral transverse bridge 22f located internally of the nozzle body so that, if and when it is desired to change the character of the spray discharged through the perforations, the rings may be removed and replaced by other rings having grooves of different cross-sectional dimensions; further, the hot and cold water mixing valve may be mounted alongside the basin in a position where it is readily accessible for operation by a person using the appliance.

The arrangement is such that, by telescoping the delivery pipe 8 to the limit of its travel inwardly of the intermediate pipe 10, its relatively short portion 8b may (as shown in chain dot lines in FIG. 1) be located close to the upper end of the bush with the spray nozzle overhanging the flange midway between the sides of the basin, whereas, by extending the delivery pipe to the limit of its travel outwardly of the intermediate pipe (as shown in full lines in FIG. 1) the said portion 8b may be raised from, and moved towards the front of, the basin to a position wherein the nozzle is located above the basin and is spaced forwardly of the shelf by a distance in the region of one-third to one-half of the distance between the shelf and the front of the basin.

When the delivery pipe is at the limit of the said inwards travel, the nozzle body is turned about the adaptor sleeve to the extreme position shown in FIG. 2 wherein the plane of the outlet ends of the perforations 22e faces upwardly but is inclined downwardly towards the front of the basin and the shorter cup port 21b is in register with the liner port so that, upon opening the mixing valve, a restricted flow of water is sprayed upwardly and forwardly from the nozzle along a trajectory confined within the periphery of the basin and adapted to impinge on the face of a person leaning comfortably over the basin. Hence, the nozzle is located in a position wherein it is suited anthropometrically for face washing purposes and all the discharged water, whether or not contaminated with soap or other cleansing medium to be applied to or swilled from the face, is received within the basin and drains away through the waste outlet 6 immediately it enters the latter.

While the delivery pipe remains at the limit of its inward travel, the nozzle body may be turned to its alternative extreme position wherein the plane of the outlet ends of the perforations, faces downwardly but is inclined upwardly towards the front of the basin so that the flow of water through the nozzle is substantially unrestricted and the nozzle is suited anthropometrically for washing the hands and forearms.

On the other hand, when the delivery pipe is extended to the limit of its travel outwardly of the intermediate pipe and the nozzle body is turned to its extreme maximum or unrestricted flow position, the plane of the outlet ends of the perforations, faces downwardly and is horizontal, or substantially horizontal, and the nozzle is suited anthropometrically for washing the hair and/or shoulders of a person leaning comfortably over the basin.

In the alternative embodiment of the invention shown in FIG. 3, to a wall-mounted appliance, the intermediate pipe 10 is omitted, the supply pipe 14 is embedded in, or fastened upon the surface of, a wall 26 with one end portion projecting from the wall at right angles, the delivery pipe 27 is straight, and its opposite ends are assembled respectively to the extremity of the said end portion and to the spherical head 17a of the spray nozzle, by knuckle couplings which permit the delivery pipe to swing relatively to the supply pipe, and the nozzle to swing relatively to the delivery pipe, about horizontal axes which are parallel to the wall surface.

When the appliance is to be used in conjunction with a basin similar or identical to the basin 1, for washing the upper parts of a human body, the projecting end portion of the supply pipe is located mid-way between the sides, and at a distance, equal to the length of the delivery pipe, above the mouth of the basin, the said length being such that, when the delivery pipe is swung upwardly to the position shown in chain dot lines, the nozzle body is located in its extreme, unrestricted flow position, and the nozzle is swung about its knuckle coupling to the pipe to locate the plane of the outlet ends of the perforations in a downwardly facing, horizontal position, the spray is discharged along a trajectory confined within the area of the basin and, again, is suitable anthropometrically for hair and/or shoulder washing. On the other hand, by swinging the delivery pipe downwardly about its knuckle-coupling to the supply pipe to the position shown in full lines, the nozzle may be located close to the rear shelf of the basin whereupon, after turning the nozzle body to its opposite, flow-restricting position and swinging the nozzle about its knuckle-coupling to the delivery pipe to locate the plane of the outlet ends of the perforations in a position wherein it faces upwardly but is inclined downwardly towards the front of the basin, the spray is still discharged along a trajectory confined within the area of the basin but is suitable anthropometrically for face washing purposes.

However, if desired, by omitting the basin, locating the projecting end portion of the supply pipe at a suitable predetermined position above the customary floor tray serving as the water catchment receptacle, and if necessary, increasing the length of the delivery pipe, the appliance may as shown in FIG. 3, be converted either for use as a shower bath or for washing and swilling the perineal area of the body. In the former case, the delivery pipe 27 is swung about its knucklecoupling to the projecting end of the pipe 14 until it is in the upwardly inclined position shown in chain-dot lines, and the nozzle body is turned to its maximum flow position in which the plane containing the discharge ends of the perforations 22e is horizontal and is facing downwardly; in the latter case, the delivery pipe is swung to, or towards, the limit of its downward travel to the position shown in full lines so that the nozzle is located in the region of two and a half to three feet above the catchment tray, and the nozzle body is turned to its opposite, flow-restricting position with the plane of the discharge ends of the perforations facing upwardly but inclined downwardly, at a small angle to the horizontal, away from the wall 26.

In the further alternative embodiment of the invention, shown in FIG. 4, to an appliance for use as an additional or ancilliary component of a conventional showerbath installation, a straight delivery pipe 28 of which one, relatively short, nozzle-carrying, outer end portion 28a is swept through to the longer straight portion, makes telescopic engagement in the lower end of a vertical intermediate pipe 29 of which the upper end is fixed to the horizontal projecting portion of the pipe 14. Such an alternative appliance is suited anthropometrically for spraying the water on to the body at, or slightly above, waist level when the delivery pipe is at the limit of its travel inwardly of the intermediate pipe and locates the nozzle in the region of 3% to 4 feet above the catchment tray with the nozzle body set in the maximum flow position and the plane of the discharge ends of the perforations inclined downwardly away from the wall 26 all as shown in full lines in FIG.

4. Then by pulling the delivery pipe 28 part way out of the intermediate pipe to locate the nozzle in the chaindot position 28b, in the region of 2, to 3 feet above the catchment tray, and turning the nozzle body to its restricted flow position, the appliance is conditioned for perineal zone washing and swilling. Finally, by pulling the delivery pipe to the limit of its travel outwardly of the intermediate pipe so as to locate the nozzle in the chain-dot position 280 in the region of 1 feet above the catchment tray, and returning the nozzle body to its maximum flow position, the appliance may be in condition for feet washing and swilling.

I claim:

1. An ablutionary appliance comprising a water catchment member having an uncontrolled waste outlet so that water cannot be retained in said catchment member, a water delivery pipe having an outlet end disposed above said catchment member, adjustable mounting means for said water delivery pipe for adjusting said outlet end to any one of a range of predetermined positions above said catchment member, a substantially spherical head mounted on said outlet end and having a through passage communicating with the interior of said water delivery pipe, a substantially cylindrical sleeve mounted on said head, a substantially cylindrical liner located and seated within said sleeve and said liner engaging with said head for swivelling movement of said liner and said sleeve relative to said head, an internal bore in said liner communicating with said through passage, a valve cup received within said liner for rotation relative to the axis of said liner between two extreme positions spaced 180 apart, first and second diametrically opposed ports of different cross-sectional areas formed in said valve cup, a chamber extending between said sleeve and said liner, said chamber having an entrance through a port formed in said liner arranged to register with one or other of said first and second valve cup ports depending on said extreme position of rotation of said valve cup, a nozzle body mounted on said sleeve for relative rotation and defining an outlet passage communicating with said chamber, means on said nozzle body engaging with said valve cup for rotating said valve cup in response to rotation of said nozzle body, and an apertured wall of said nozzle body terminating said outlet passage, whereby said nozzle body may be swivelled and rotated to change the trajectory of water discharged through said wall, and on rotation, when the valve cup is at the first of said extreme positions flow is at a maximum, and when said valve cup is at the second of said extreme positions flow is restricted, whilst during rotation between said first and second extreme positions any substantial flow is prevented.

2. An ablutionary appliance according to claim 1 wherein said apertured wall of said nozzle body extends in a plane inclined to the axis of rotation of said nozzle body and is constituted by at least one perforated element detachably secured to said nozzle body.

3. An ablutionary appliance according to claim 2 wherein said means for rotating said valve cup in response to rotation of said nozzle body comprises interengaging vanes and recesses.

4. An ablutionary appliance according to claim 3 wherein said adjustable mounting means for said water fifil ixe itfiill fim ii i iaif'illli dc ill pipe.

5. An ablutionary appliance comprising a water catchment member having an uncontrolled waste outlet so that water cannot be retained in said catchment member, a water delivery pipe having an outlet disposed above said catchment member, a bush through which said water delivery pipe is displaceable lengthwise for adjusting said outlet end to any one of a range of predetermined positions above said catchment member, an intermediate pipe having one end connected to said bush and within which said water delivery pipe may be displaced, a connection at the other end of said intermediate pipe for connection to a water supply pipe, a substantially spherical head mounted on said outlet end and having a through passage communicating with the interior of said water delivery pipe, a substantially cylindrical sleeve mounted on said head, a substantially cylindrical liner located and seated within said sleeve and said liner engaging with said head for swivelling movement of said liner and said sleeve relative to said head, an internal bore in said liner conununicating with said through passage, a valve cup received within said liner for rotation relative to the axis of said liner between two extreme positions spaced apart, first and second diametrically opposed ports of different cross-sectional areas formed in said valve cup, a chamber extending between said sleeve and said liner, said chamber having an entrance through a port formed in said liner arranged to register with one or other of said first and second extreme positions of rotation of said valve cup, a nozzle body mounted on said sleeve for relative rotation and defining an outlet passage communicating with said chamber, means on said nozzle body engaging with said valve cup for rotating said valve cup in response to rotation of said nozzle body, and an apertured wall of said nozzle body terminating said outlet passage, whereby said nozzle body may be swivelled and rotated to change the trajectory of water discharged through said wall, and on rotation, when the valve cup is at the first of said extreme positions flow is at a maximum, and when said valve cup is at the second of said extreme positions flow is restricted, while during rotation between said first and second extreme positions any substantial How is prevented.

Claims

1. An ablutionary appliance comprising a water catchment member having an uncontrolled waste outlet so that water cannot be retained in said catchment member, a water delivery pipe having an outlet end disposed above said catchment member, adjustable mounting means for said water delivery pipe for adjusting said outlet end to any one of a range of predetermined positions above said catchment member, a substantially spherical head mounted on said outlet end and having a through passage communicating with the interior of said water delivery pipe, a substantially cylindrical sleeve mounted on said head, a substantially cylindrical liner located and seated within said sleeve and said liner engaging with said head for swivelling movement of said liner and said sleeve relative to said head, an internal bore in said liner communicating with said through passage, a valve cup received within said liner for rotation relative to the axis of said liner between two extreme positions spaced 180* apart, first and second diametrically opposed ports of different crosssectional areas formed in said valve cup, a chamber extending between said sleeve and said liner, said chamber having an entrance through a port formed in said liner arranged to register with one or other of said first and second valve cup ports depending on said extreme position of rotation of said valve cup, a nozzle body mounted on said sleeve for relative rotation and defining an outlet passage communicating with said chamber, means on said nozzle body engaging with said valve cup for rotating said valve cup in response to rotation of said nozzle body, and an apertured wall of said nozzle body terminating said outlet passage, whereby said nozzle body may be swivelled and rotated to change the trajectory of water discharged through said wall, and on rotation, when the valve cup is at the first of said extreme positions flow is at a maximum, and when said valve cup is at the second of said extreme positions flow is restricted, whilst during rotation between said first and second extreme positions any substantial flow is prevented.

4. An ablutionary appliance according to claim 3 wherein said adjustable mounting means for said water delivery pipe comprises knuckle couplings having hinge axes extending normal to said water delivery pipe.

5. An ablutionary appliance comprising a water catchment member having an uncontrolled waste outlet so that water cannot be retained in said catchment member, a water delivery pipe having an outlet disposed above said catchment member, a bush through which said water delivery pipe is displaceable lengthwise for adjusting said outlet end to any one of a range of predetermined positions above said catchment member, an intermediate pipe having one end connected to said bush and within which said water delivery pipe may be displaced, a connection at the other end of said intermediate pipe for connection to a water supply pipe, a substantially spherical head mounted on said outlet end and having a through passage communicating with the interior of said water delivery pipe, a substantially cylindrical sleeve mounted on said head, a substantially cylindrical liner located and seated within said sleeve and said liner engaging with said head for swivelling movement of said liner and said sleeve relative to said head, an internal bore in said liner communicating with said through passage, a valve cup received within said liner for rotation relative to the axis of said liner between two extreme positions spaced 180* apart, first and second diametrically opposed ports of different cross-sectional areas formed in said valve cup, a chamber extending between said sleeve and said liner, said chamber having an entrance through a port formed in said liner arranged to register with one or other of said first and second extreme positions of rotation of said valve cup, a nozzle body mounted on said sleeve for relative rotation and defining an outlet passage communicating with said chamber, means on said nozzle body engaging with said valve cup for rotating said valve cup in response to rotation of said nozzle body, and an apertured wall of said nozzle body terminating said outlet passage, whereby said nozzle body may be swivelled and rotated to change the trajectory of water discharged through said wall, and on rotation, when the valve cup is at the first of said extreme positions flow is at a maximum, and when said valve cup is at the second of said extreme positions flow is restricted, while during rotation between said first and second extreme positions any substantial flow is prevented.