US2560279A - Adjustable nozzle - Google Patents

Description

July 1o, 1951 C, R CURHS 2,560,279

ADJUSTABLE NOZZLE Filed Aug. 7, 1948 2 Sheets-Sheet l July l0, 1951 c. R. CUR-ns 2,560,279

ADJUSTABLE NozzLE Filed Aug. 7, 194s 2 Sheets-Sheet 2 .55 54 46 155.6 @L i-i2? 5315 62 ANL@ 2% I: 'I ff fLV 41 4.9 .50 5;, l

* /fcf Hm JET Patented July 10, 1951 [TED *S1 TTE S PATENT OF F I C E DJUSTABLE NOZZLE Clarence-Ri CurtisLombard; 'assignor to'F. H. #Smith Manufacturing` 00j.,v Chica-go, Ill., vay co1'- normanni-Iliinois In the art of adjustableflnozzles;many types of nozzleiconstructions havelbeen-propose'dandi employe'dfor specic purposes, uHowever, eachof the "varied and complicated. Ynozzle A`structures of the prior. art hasbeen limited in itsapplication toaa v.relatively.smallfs-number of speci-o luses". The present inventionnow provides animproved, simple, easily .manufactured and inexpensive forme of adjustable. nozzle, the :novel features of whichl may be employed ini nozzles: ofwidelyvary-v ing construction and use,` For example. therpresent invention is'particularly described, herein as; embodied in a shower head, but-,fit should be appreciatedthat the samenozzle construction may be employed in a fountain spray or as av fuel nozzle in heat` exchange apparatus employingliquid iuel.

It is, therefore, an important object of the .presentinvention to. provide an improved nozzle capable-of being utilized fora number of different uses,'the nozzle beingsimple and 'ruggedinconstruction-and adapted for inexpensive produc- I tion.

Itis. afurther object. of this.' invention "to. provide a nozzlein which a member extendingtransversely to theiiow of water through "the 'nozzle is provided to overlie shoulders extending into the iiuid stream.,r the position'ofsaid member relative tov said 'shoulder determining the character 'of the fluid stream from the nozzle.

`Itis `a yet further object'of `the'present invention to provide an `adjustable nozzle of simple and inexpensive "construction, the nozzle being capable of completely modifying the character'of the stream issuingtherefrom'upon very limited adjustment of the nozzle.

It is still vanother object'V of the present invention to provide anY adjustable nozzlein which the character of the `stream issuing therefrom may be modified by relative adjustment of 'fa' plurality of parts of the nozzle. Y

Otheiand further objects of this invention will become apparentv from the disclosures inth'efspecification and the accompanying` drawings.

On the drawings: l e v AYFigure l1 is an elevational view ofthe nozzleof the present invention Figure 2iis van enlarged cross-sectional VAview of the nozzle of-Fig'ureIltakenonthe Aplan'efIl-II ofFigurel; y

Figure 3 is an exploded sectional view illu-s- 2. trating the construction and the assembly ofthe nozzle of the present invention;

i Figure 4 is a cross-sectional view taken along the plane IV-'IV of Figure 2;

Figure. 5- is a schematic cross-sectional view of the Hfluid directing members of the nozzle ofFigu're 1 showing'tlie members at the zero`position;

Figurel'is a, schematic plan view 'showing the fluid directing members at an' intermediate position;

`Figure'7 is a schematic Vcross-sectional view taken on the` plane yVlI---VII'of'Figure 6;

4vligu're 8 is a. schematic perspective view similar to Figure` 6; and

Figure 9 is a schematic plan view showing. the fluidy directing members vat the right-angle. position.

`As"shown on the drawings:

As vbestshown in Figure 1, theadjustable nozzle of .the present/invention, indicated generally by the'reference vnumeral I and 'illustrated as employed in a shower head, comprises essentially a p'ipeiitting Il, `a ball member I2, ahousingf` f3,v anda nose i I'4. Thetting I I ,"'thehousing I3 andthe nose I4 are'each provided with knurledv portions to facilitate the grasping of these portions of the nozzle by the hand ofthe operator both during the assemblyand the use of the nozzle.

More'particularly, the pipe fitting I I is provided with acentral threaded aperture i5- so-that the nozzle; Hl may be secured to a suitablesource of liquid-'under pressure. The pipe tting H is also provided with a lower vcentral, aperture I1 in ful-1 communication with the threaded aperture i6.

VThe ball member I2 is provided with a centrai upwardly extendingportion I8. contoured to provide a shoulder |9,-and above the shoulder I9 providing an upstanding cylindrical portion 2li of slightly smaller diameter than the aperture I7 in the-pipe fitting Il. Ball member I2 isr provided with a centrally vextending, aperture 2l flared outwardly atits upper end asat 22. As illustratedin Figure 2, the upstanding portion 2i) of the ball lmember I2 is. adapted to be received by the aperture Il of the pipe fitting II With the shoulder I 9 resting against the lower surface Ila of the pipe fitting. That part of the portion 2E! extending into the pipe fitting II is peened outwardly to overhang the aperture li retaining the portion 20 in position Within the aperture I7 with the ball I2 depending from fitting II.

A YAsshown in Figures 2 and 3, aportion ofthe aeodzve riphery of the ball |2 to permit swivelling mover ment of the entire housing I3 so that the stream of liquid passing through the nozzle may be dil rected as desired. The aperture l24 is internally v threaded as at 21 intermediate thel extreme endsv oi the nut 23. Nut 23 carries a depending skirt portion 23a extending beyond the threads 21.

A body portion 28 externally threaded about its upper end as at 29 is adapted to be threaded into the nut 23, the threads 29 engaging the internal threads 21 of the nut 23. The body 28 is centrally apertured to provide 'internal shoulf-f ders 30, 3| and 32, dening stepped apertures 39a, 3|a and 32a respectively, as shown in Figure 3- Free passage of liquid through the body portion is provided by the aperture 34 in the lower sur.- face of the body 28 and in communication with the aperture 32a. The shoulder 32 is formed with an annular upstanding ridge 33 surrounding the aperture 34 in the lower extremityof the body member28. The body 28 is also provided with an external shoulder 3S positioned directly beneath the threads 29.

A washer or sealing ring 31 of rubber or suitable plastic material such as nylon -is adapted to be positioned in the aperture 30a of the body portion 28, the washer being in surface contact with the lower portion of the ball I2 when the body member is threaded into the nut 23. An arie' nularring 33 is adapted to be Seated on the shoulder 3| of body member 28 beneath the wash-v er 31, the upperextremity of the ring beingin sealing contact with the lower surface of the washerrwhen the nozzle is assembled as shown in Figure 2. The ring 38 is provided with a conical internal face 39 about its lower extremity, the ring having diametrically opposed recesses 40 formed in the face 39. and extending upwardly into the body of the ring.

A sleeve 4| carrying an outwardly extending" annular shoulder 42 at its upper edge is adapted to be inserted within the body portion 28. The. shoulder 42 is provided with a depending annular ridge 43 corresponding to the ridge 33 of the shoulder 32. A washer 44'is adapted to be received between the shoulders 32 and 42 to insure a liquid-tight seal therebetween. The sleeve 4| is exteriorly threaded as at 46 in a-position adjacent its lower extremity. The sleeve l4I is also provided with an aperture 41 in its upper extremity, the aperture 41 sloping downwardlyn and inwardly as at 48 to dei-lne a restricted oriflee 49. Orifice 49 is in full communication with a plurality of stepped apertures 5B, 5| and 52 formed in the sleeve 4| below the orice 49. TheY stepped apertures 5|]-52 increasey in size beyondv the orifice, the aperture 52 being larger than the aperture 5I and the aperture 5| being larger than the aperture 59. The sleeve 4| is also provided with opposing upstanding, segmental shoulders 53 formed integrally with the sleeve 4| and defined by removing diametrically opposed portions of the sleeve 4| about the periphery of the aperture 41.

' The plate 54 is adapted to `be seated on the 4 shoulders 53 in a position directly overlying the restricted oriiice 49. The plate 54 carries integral upstanding projections 55 of suitable size to be readily received by the slots 40 formed in the ring 38. The plate 54,.as best illustrated in Figure 4, extends transversely across the aperture 32a formed in the body portion 28 and has a pair of curved segmental sides 54h and'54c having a radius of curvature approximately equalto that of the shoulders 53 and a pair of parallel, oppo- Lsitely disposed straight sides 54d and 54e. The

lplate 5.4,.is movable upon the shoulders 53, the movementY of the sleeve 4I relative to the slotted ring38 causingnrelative movement between the vplate 54 andthe shoulders 53.

Rotationalmovement of the ring 38 within the nut 23 is prevented by the snug engagement of the washer 31v against the periphery of ball I2 and of the ring 38 against the lower surface of the washer. The ring 38, bottomed on shoulder 3|, is thus heldv against rotationnponthreading the body 28 into the nut 23. By preventing rotation of the ring 38, any rmovement ofthe sleeve 4| will cause relative movement between". the shoulders 53 and plate 54. Y

The nose portion I4 of the nozzle assembly is centrally apertured as at 56,v the aperture 56 beingconcentric with and smaller in diameter than the Yaperture 34 `of the body `member 28. The aperture 59 is counterbored a'ndinternally threaded Vas at 51 Ato threadedly receive the threads 49 ofthe sleeve 4|. The nose I4 is threaded on the sleeve 4| until the lower surface 4|a, of .the sleeve abuts shoulder 59 of the nosev I4 dened at the bottom ot counterbore 51, thus providing a` rigid connection ofrnose member|4 and sleeve 4| for co-ro'tation."A spring washer 6U Vis provided between -the nose I4 andthe under surface or the bodyl member 28 to permit relative rotational movement therebetween and to- mantain shoulder seats 33 and 43 in sealing contact with washer 44. f

Theeeasel and economy of 'rrianufaotulre.Y ofthe nozzle of the present invention will be readily apparent from the above description. Substantially all of the major components of the'nozzle are adapted for production by the use ofrstandard screw machine techniques and, withA the exceptionof washers or seal rings,`may be prepared from .easily worked, relativelysoft metals, such as brass. The exterior surfaces of the nozzle may preferablybe chromiumplated to improve the appearance rand durability of the nish. The construction makes the rapid Y and ,simple assembly of the apparatus possible .while-.the .employment of threaded ttings facilitates repair and inspection of the device.

- In the operation of the nozzle of thepresent invention, the pipe tting- I'I is threaded into a source of liquid underpressure,1such'as a city water line. The-.liquid under pressure ilowsfrom the pipe tting through the aperture 2| of the ball I2. The liquid'flowing` through the aperture 2| passes through the central vaperture of the. ring 38to impinge directlyupon the plane upper surface 54a. oftheA plate 54.A Any'leakage of liquid upwardly is prevented by the seal ring 431 while any leakage between the flanges 42 and 32 is prevented-by the seal ring 44 positioned therebetween. Following the striking ofthe upper surface 54a, the 'liquid flows pastutheplate through the passageway provided by the plate 54 andthe shoulders 53 and then through the aperture `41, and the restricted orifice 49.- Followingthere-v steppedapertures or chambersk50-52,.inclusivegn the sleeve4 I: andthroughthe Ala-rger. aperture 56 to-fissue `fromthe nozzle l0. Y f

The characteristicsofthe `liquidstream issuing from the nozzle l mayf'fbe-variedlbyhmerely changingthe-setting ofthe p1atel54fwith respect tothe sleeve-4l. rllhe-'changingmof the relative positions of these members Amay-be brought `about by the rotationof the sleeve4 I within lthe housing |3-by-turning the nose in eithera clockwise orcounter-clockwise direction; as -by grasping its exterior knurledvsurface.

Figures 44` and-5,2 'the plate 54- is illustrated ascentered vupon the-shoulders 53,` so that the side'surfacesi53a-53d of the shoulders 53 .are parallelV to thestraight, opposing sides54d-and 54e`oplate'54. The angle between thesidesurfaces Aof the'plate-and'the side surfaces of the shoulders is zero so this position is herein referred to as the zero position -Inv this position, the passages ll provided by the straight parallel sides ofv the platein cooperation with the shoulders-and the circular-wall surfaces of the aperture 32a are open to their`` fullest extent. The liquid impinging uponthe upper surface54a of the-plate 54 is v*divided into afpair of separate streams -which 4iiowover the vsides of the plate into the passages l The liquid-*entering each of the radially opposed passages 6l is directed inwardly toward the axis ofA the sleeve 43 as shown by the directional arrowsin FiguresA 5. That portion of the stream-entering each of the passages 6l will impingefupon the ystream entering the opposing passage; The vdirection-of travel of the liquid is substantially axial tothe axis of the cylindrical Asleeve4|,V since substantially all of the forces lwhich might tend toimpart rotational movement'tothe stream vvlllbe nullied bythe direct impingement of the two streams ahead of the orice. 'I'he stream passing axially through the apertures 50,5! and 52 will tend to create asmall semi-evacuatedregion around the upper, peripheral section of` the. chambers 5| and 52 with' the result that a portion ofl the streamwill be drawn into the `upper portions of these chambers to impinge against theside ywalls of the chambers.

It will .be s een by those skilled in the artr that the liquid. .streamv issuingV from the nozzle,y when the plate 54 and the shoulders 53 are in'zero position, vwill be substantially cylindrical due to thezpredominantly axial flow of the liquid. This type.` offcylindrical stream is to be desired for thetthorough drenching or wetting of aY relatively small vcross-sectional area.

...'As illustrated in Figures 6 8, inclusive, :the sleeve ,4l may .be rotated within'the nozzle so that'fthe-,side surfaces 'of' the shoulders underlie the plate54 at an angle to the straight parallel sides of the plate. As shown in-the drawings, the sides 53a and 53d extend beyond the connes of theplate` 54 and when viewed in plan elevation, as in Figure .6, the sides 53a and v53d forman obtuse angle with the straight parallel sides 54d and 54e of the plate 54. These positions .areherein referred to as the' intermediate positions.

:In any intermediate position, the passageways-6| are somewhat morevrestricted than'in the zero position was illustrated in YFigure 4. However, the liquidimpinging' upon the upper surface '54aof the plate'54flows over the sides of -the `4r plate into Y"the passageways 16| J as describedk `irl-connection with the parallels position.'

That fliquid .flowing 'past the .plate in .the .proximity of the surfaces 53a and53d-will-bedeilected alongthesesurfaces and will .leavelv-the surfaces in a direction-substantiallyparallel lto the surfaces to enter Uthe 'chamber 1.41 along abpath formed I substantially as -aprojectionk of. the Vsurface 53a or-53d. The? stream -of Iliquidstriking' the :circular -wall of the 'chamber 41, traveling ina path substantiallytangential to the-wall. of chamber4l, willfbe deected intoa-circular path, the directional -movement impartedtothe stream -by the shoulder surfaces tending to' direct thestream in a pathabout the vinner surface of the circular chamber 4l. The waterthusf circulated -lin 'a lsubstantiallyl circular Ipath-'within the chamber-41 forms a vortex? upon contact withv the generallyconical walls 348, `the-axis yof the yvortex being-identicalwith the axis oflthe sleeve 4l. That fluid ventering the passageways 6| at points spacedifrom the surfaces 53a and 53dI will also be deflected ina path-parallel-to the surface-53 by the motion of the liquid zadjacent the v surface. Thus, A substantially? all yof the liquid entering the chamber 4lv is rvdeilected into -a circular-path as shown in Figure.

The uid striking the surfacesf53b--and 53e of shoulders 53 will not flow directly intolthe chamber 41, since these surfaceswill'actasbarriers to the normal flowof fluid into thefchamber A4l. The-flow of the main liquid-stream through the passages 6! will-serve tosetup eddy currents in the'confined Vlluid'as indicated by the directional arrows 62. l Y

Bothan axial and a" radial component of force are imparted to the'fluidentering the orifice- 49. If a widely divergent spray is desired, thehluid stream may -be released from thenozzle immediately following its passage through` theforice 49. However, in most 'applications,V as in a shower'head, it is 'desirable to' limit the conical spray angle,'as by the conically steppedlchamber 50-52. That portion of theV stream having the greatest rotational component of velocity is deflected into the main fluid'stream by the'conningfinterior walls of the chambersl soithat the conical conguration of the stream .is limited during its passage through that `portion of the nozzle lying beyond the orice.

"Thus, the cone of dispersionof the conical stream is determined by the 'size and location of the stepped apertures l50--52 and theV liquid issuing'from'the nozzle Ill continues its conical path due to the rotational force'imp-artedl-to the liquid. during its passage through the nozzle. The liquid is broken up into a nely divided stream by the combination of the swirling motion, their direct impingement upon the surfaces of the chamber 4l and the stepped chambers 543-52.. Thus, arne conical spray may be ob- ,tained from the nozzle l0 lby relative adjustment of the plate and the sleeve to the intermediate f position, and the intensity of the fluid flow is determined by the specific position of the shoulders relative-to the plate. Thisrlnely divided lconical spray is to be greatly'desired when evenly distributed vline showers of liquid are desired, asin heat exchange apparatus employing liquid .fuel, in a shower head, or in a lawn sprinkling nozzle.

As shown in Figure 9, the sleeve maybe rotated relativev to the plate '54 to still another .position in which the shoulder surfaces 53a-53d are' each' at right angles to vtheirrespective adjacent straight .plate .sides 54d iand'r54e. :.Thefangle` esagera.

betweenV theiside surfaces ofthe; plate` and. the shoulder, surfaeesinthisinstanceis 9.0i and .this position A.herein referred to,l as the fright angle position?.v furthe-right angle.. position.` four PaS- sasestl of equal :,szeare .nrovidedatpaced pointsoverlying therestrctedrice, The liquid `fiowfentering each of` the passages 6l will ,be deflected inwardly toward the axis of thesleeve as shown by the directional arrows in Figure 9e The stream portions, directedinwardly by the `shoulder surfaces53a-53d, inclusive, will be directed at each other as shown by the arrows andwill impnge diretlyiupon each. Qther- Due to the t direct '.impingement .of the opposing streams, anyrotational movement imparted to anyone of theA streams will be nullified by the oppositely directed stream impinging directly thereon. Accordingly, a'straight now of liquid through the sleeve willbe obtained inthe manner described in connection with the zerolposition, and a relatively straight, generally cylindrical flow streamwill be obtainedas described above.

It is to be noted that in each position of the plate relative to the sleeve, the characteristics of the stream are determined following the passage of the streamA beyond the plate 54. The different characteristicsV ofthe stream are obtained by the manner of now into the chamber 41 as determined by the positioning of the plate relative to the shoulder. Accordingly, the naturev of the upper surface 54a of the plate has relatively little effect upon the character of the stream, and the upper plate surface 54al may be of any desired shape.

1t is also to be noted that in each of the positions a relatively large passage is provided for the fluid stream throughout all portions of the nozzle. Even in the 90 position, the passages 6l are relatively large while the height of thepassage, determined by the height of the shoulders 53, remains constant. This feature of the present invention makes possible the self-cleaning of the nozzle with the elimination of foreign particles which would clog the restricted opening of conventional nozzles.

It should be 'understood that the design herein presented may be greatly modified without affecting the efficiency or mode of operation of the nozzle.

For those applications where a single stream configuration is desirable, the design of the nozzle specifically described herein may be greatly modifled and simplified while retaining the large fiuid passages. The desired characteristics of the nonadjustable stream may be selected from the wide variety of stream contours and intensities which may be obtained by changing the relative positions of the plate and sleeve or by changing the number and size of the conically stepped apertures 50-52. Thus, it will be appreciated that the design of the sleeve 4l and of the plate 54 may be employed in many different types of nozzles with the same beneficial results as obtained in the illustrated embodiment, since the present invention is not limited to the employment of the element in a shower head such as that as has been hereinbefore described. For example, it has been found' that this type of construction may be advantageously employed in a nozzle for the introduction of liquid fuel into a furnace or other heat exchange apparatus. Also, by slight modification this construction may be employed in a fountain nozzle or other similar device.

Accordingly, it will, of course, be understood that the 4various details of construction may be modified throughout a wide rangewithout depart-f in'ggfrom' the principles of. this invention, vand it is, therefore'not the purpose `tolimitthe patent granted hereon otherwise y,than necessitated by the Scopeof the appended `claims... Y. Y

I claimasmyinvention: Y i V; Y, .Y

1. In an adjustable spray .nozzle includingv a ball member secured to aA source of fluid under pressure and having ,a centrally extending aperture for the V,passage of fluid therethrough, the improvements of an internally threaded nut mounted on said ball forl swivelling movement, a hollow body portion having one end threadedly retained `in said nut and having an annular inwardly directed shoulderformed at its other end, a cylindrical sleeve havinganannular shoulder formed about one nend bottomedvon said Ybody shoulder and havingv a centrally located restricted orifice formed internally of said sleeve, said sleeve having a plurality of stepped apertures in communication with said orifice and increasing in diameter downstream of said orifice, a pair of upstanding shoulders on said sleeve upstream of said orifice, an elongated plate seated'in flatwise contact with said upstandingrshoulders and disposed transversely to the fluid fiow through the nozzle, and means for effecting yrelative rotative movement between said plate and said shoulders.

2. In an adjustable nozzle having a housing adapted `for the flow of fluid therethrough, the improvements of a relatively flat elongated plate positioned in said housing and extending transversely across the now of fiuid with its longest dimension lying normal to the path of fluid flow, a sleeve carried by said housing and disposed in the fluid flow downstream of said plate, said sleeve having an Y aperture directly underlying said plate, a restricted orifice intermediate the confines of said sleeve and stepped apertures of increasing diameter downstream of said orifice, supporting means carried by said sleeve and extending upstream toward said plate into atwise contact therewith for supporting said plate within said housing and cooperating therewith to define a passage for fluid to said orifice, and means for effecting relative movement between said plate and said supporting means in a plane lying normal to the path of fluid flow.

3. In an adjustable spray nozzle, a housing secured to a source of liquid under pressure and adapted for swivelling movement, a sleeve rotatably retained in said housing, said sleeve having a restricted orifice for the flow of liquid therethrough and a plurality of stepped apertures of increasing diameter downstream of said orifice, a pair of opposed shoulders on said sleeve-ahead of said orifice, and an elongated plate seated fiatwise on said shoulders with its longest dimension lying substantially normal to the path of liquid fiow through said housing, said sleeve being rotatable to move said shoulders into and out of alignment with the longest dimension of said plate.

4. In an adjustable spray nozzle, a housing secured to a source of liquid under pressure and adapted for the fiow of fluid axially therethrough, a baffle plate positioned in said housing and having an upper baiiie surface extending radially of the housing in a plane substantially normal to the flow of fluid, means positioned in said housing defining a restricted orifice directly downstream of said plate, a pair of spaced separate supporting means carried by said housing interposed between said plate and said orificeto support said plate and cooperating with said Vplate to define a remeans into and outof alignment-to vary the path` followed by; the lipid' ,streamjntroducedilintolsaid orice.

5. In .anadjustable Yn o?zle,means for controlling the ilow of fluid'through the axial bore ofl an elongated housingcomprisingv ra- 'baille membervpositioned withinthef-bore and extending radially thereacross-.in a .plane normal to the -ilow. of iluid through .thehousing a second -member disposed insaid .housingl bore providing an arcuate rotatable, mounting. shoulder for supporting said'flrst member and cooperatingthere- With-to define a passageway directly downstream .ofsaid baille member, and -means secured to said second member and extending exteriorly of said housing for effecting rotation of said second member relative to said baille member.

6. An adjustable spray nozzle comprising a housing having an axial bore for the flow of fluid therethrough, a generally flat plate positioned in said housing and having its two longest Vdimensions extending radially across the bore of said housing and a sleeve rotatably disposed in said housing downstream of said plate, said sleeve having a pair of upstanding arcuate shoulders abutting the under surface of said plate and a central restricted orice directly downstream said plate, said plate and said shoulders cooperating to dene a passage for fluid beneath said plate to said orice and being capable of relative rotational movement about the axis of the bore of said housing to vary the path of fluid ilow to said orifice.

7. An adjustable spray nozzle comprising a housing having an internal bore adapted for the flow of fluid therethrough, an annular ring seated in said nozzle and having a central bore aligned with that of said housing, said ring being xed against relative movement in said housing and having opposed slots formed in its lower annular face, a sleeve rotatably supported within said housing and defining a restricted orice aligned with said bore for fluid flow through said housing downstream of said ring, said sleeve having a pair of upstanding shoulders extending toward said ring upstream of said orifice, an elongated plate seated on said shoulders with its under surface in flatwise contact therewith and having its longest dimension extending radially across the housing bore in a p-lane normal to the path of fluid flow therethrough, said plate cooperating with said shoulders to denne a passage for fluid between said shoulders downstream of said plate and upstream of said oriflceand having projections formed in the upper face for insertion into the slots in said ring to prevent rotation of said plate within the housing, and means for eiecting rotation of said sleeve relative to said plate.

8. In an adjustable spray nozzle including a ball member secured to a source of fluid under pressure and having a centrally extending aperture for the passage of fluid therethrough, the improvements of an internally threaded nut mounted on said ball for swivelling movement, a hollow body portion having one end threadedly retained in said nut and having stepped internal shoulders formed therein, a seal ring mounted on one of said shoulders in sealing contact With said ball, an annular ring mounted on a second of said shoulders in sealing contact with said seal ring-andhaving ,slotsformedf in Aits vlower end face, acylindrical sleeve `having an annular shoulder formed about one end bottomed on a thirdone-ofjsadbodyshoulders and having a centrally `located restricted orifice-formed internally of said sleeve,.said'sleeve/havinga plurality j ofstepped apertures in communication with said orice and-increasingvin diameter downstream f 'said orifice, a pair of upstanding shoulders on saidsleeve upstream `of said oriilce, an elongated plateseated on vsaid upstanding shoulders and 'l'i'avingff' its two greatest .dimensions extending ifnormfallyto the pathiof viluid ow through the nozzle, said {plate l. having upstanding projections insertedirito the slots formed in saidannular ;rin'g, and means extending exteriorly of said .bodypor-tionand,engaging .said Isleeve for effecting`re'lative rotationv between said plate and said shoulders.

9. In an adjustable nozzle, means for controlling the flow of fluid through an apertured housing comprising an elongated baille member positioned in the housing and having its greatest dimension extending in a plane normal to the direction of fluid flow through the housing and flow controlling means in said housing providing a pair of separate arcuate supporting shoulders engaging said baille member and being rotatable relative thereto, said arcuate supporting shoulders having plane flow directing side surfaces downstream of said baille member, said baille member having opposed recessed sides serving to divide fluid flow through the housing into a plurality of separate streams and the flow directing surfaces of said shoulders cooperating with said member to direct said streams through said housing in a spiral path determined by the relative positions of said member and said surfaces.

10. In a nozzle, means for controlling the flow of liquid through the bore of a housing having a discharge outlet comprising a baille member` positToned in the housing and having its greatest dimension extending normal to the flow of fluid through the housing upstream of said outlet, and flow controlling means in said housing providing a pair of projecting shoulders extending along the path of liquid flow therethrough and abutting said baille member, said baille member and said shoulders being relatively rotatable about the axis of said bore and said shoulders having flow directing side surfaces extending downstream from said baffle member, said baffle member serving to divide fluid flow through the housing into a plurality of separate streams and the side surfaces of said shoulders cooperating with said baille member to direct said streams through said housing in a spiral direction determined by the relative angular position of said baille member and said shoulders.

ll. In an adjustable spray nozzle provided with an axial bore adapted for the flow of iluid therethrough, the improvement of a baille disc extending radially across said bore, said disc having flat faces and arcuate portions removed from opposing curved edges thereof, an axially bored sleeve carried by said housing downstream of said disc and having a pair of arcuate upstanding shoulders engaging said disc and defining plane flow-directing side surfaces directly downstream of said disc, and meansfor eifecting relative movement between said disc and said sleeve to change the path of fluid flow about 'saidgdisc between s ai d shoulder side surfaces and'through the hereof said-sleeve.

12. In an adjustable s pray'nozz'le having`V an Y axially bored housing adapted tothe ow of fluidtherethrough, `the improvement of a'disc having flat-.faces extending in a plane lying normal to .the path'of udflow through said housingand having arcuate portions removed from opposing Vcurved edges thereof, a sleeve rotatably mounted in saidhousing downstream of said disc, said sleeve having a pair of arcuate shoulders pro- Y Yjectingv from the` sleeve thereof for abutment against'one face of said disc and having a ref duced orice downstream of said disc, and means for rotating said'sleeve relativeto said discjto bring said shoulders into and out of registry with those portions of said disc from Whichthe arcs have beenf removed to changeV the path'of fluid now-about said dise to said orifice. Y Y VCLARENCE R. CURTIS.V

A VREFERNCESCITED The 'following referenoes are of I record in the file of this patent: Y

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