US2570605A - Water sprayer - Google Patents

Description

oct. 9, .A1951 M S,GMUND- 2,570,605

WATER SPRAYER Filed Sept. 24, 1948 3 Sheets-Sheet l Mu osLAv SGMUND- (Mvc-NTO@ GLA ATTN S.

' M. SIGMUND WATER SPRAYER Oct. 9, 1951 5 Sheets-Sheet 2 Filed Sept. 24, 1948 MHQOSLAV Swarm/No M. slGMUND 2,570,605

Oct. 9, 1951 WATER SPRAYER Filed Sept. 24, 1948 3 Sheets-Sheet 5 FIGA.

FIGS.`

Patented Oct. 9, 1951 oNlT-ED STAT es WATER SPRAYER Miroslav SigmundGosforth, England,

Application September 24, 1948; SerialNo. 515,060' In Great Britain October 1, 19475' The present invention lrelates* to improvements in Water sprayers of:` the. type-comprising a ro.- tatable nozzle, and a water'difiusing or atomising element rotatably mounted on the nozzle, rotation of the diiiusing element and the nozzle beingjeiected by. reaction pressure of the Water jet emerging from the.` nozzleand impinging on the diffusing element.

In. accordance with the. invention ar water sprayer is provided comprising a jet nozzle, a' support therefor. upon which said jet nozzle is capable. of rotating, a rotary diffusing, element mounted: onthe: jet.nozzle;and rotatable thereon as aj-result of therreaction-v pressure..` between the water-y jet from. the nozzle andV said d iiusing element-,means driven by said: rotary' diiusing element forl rotatingth'ezjet nozzle upon itsk support andi means for reversing@ theV direction of the rotation.y ofy the jet nozzle on' the support under the drive of the diflusingelernent.v

In accordance with` a further feature of the invention means: are provided: whereby the direction of rotation. of the jetnozzlefmay be reversed at` predetermined variable points-` aboutvv itsV axis of rotation on the supp-ort sothatwatery from the jet may be; applied repeatedly. overaselected sector of aL circular area.

An embodiment of` theVI invention. is.y illustrated by wayof example in. the. accompanying drawings in which4 Fig. 1 isf ar viewin eleva-tion. and partly in sectionA of a complete water-sprayer, Fig. 2 is a view in elevation anal-,on-v a larger scale of a part ofthe transmissionior inl-parting rotational movement to the sprayer. nozzle. Fig. 3 isI a view in. elevationfrom the. rear of Fig. 2, Fig. 4 is afview in. side4l elevation and partly in sectiontakenfromtherig-ht h andside in Fig. 2 aridFig.V 5 is. aview inplan o f the par-ts shown in Fig. 4.

Referringto Fig. 1V. of. the drawings, I isl the jet. nozzle for-Ined-. by a` tube or barrel having a.- suitablev jet outlet aperture 2 atv one end'. and connected at the otherend to a` curved hollow body 3 the lower end` ot` whichl isv formed as a cylindrical parti A` which is a rotatable t in aring 5 xed at the upper end of a tube 6 fixed to and. carried by a collar 'I andA a tripod or equivalent stand 8. The tube 6 is of a form at its lowerl endv 9- to.b.e coupledto a water supply ort hose pipe (notA shown), An extension. tube IU is tted within the; lower.' cylindrical part ll: of the curved hollowbody 3, said tube I5 extending. into asuitably countereboredf portionv of :Nr oFFrc-e erably illedwithafnestl off parallel water tubes I to eliminate or reduceturbulence.

In operation, the' barrel I'is: arranged. at an upward inclination as shown in Fig. 1 androtates about a generalf vertical axis? on the' stationary support; against the bearingy I4.

Whilst al portabletripod orf like: stand 3- is shown in the` drawings it wiil be` understood that the barrel I- may befmountedI for rotation in bearings orany other convenient form of support e. g. at the upper end ofja hydrant fixed toor forming partei airigidiwatersupply conduit.

The diiuserr I6 is in; thef form ofa a' spolred wheelhaving af plurality of inclined vanos I'l formed on its.Y periphery, sa-id'f diffuserv I6- being mountedon.. a rotatable' spindle It carried in bearin'gsfin1 a gear'boX I'9fs'upported on the end ofv the barrel I and' disposed. soi that the spindle I8 extends* atan inclination to thefaxis of the barrel I e. g. approximately?verticallyas in the case; illustrated;

As an example', the vanes I-'I are inclined at a'n angle of about 45"A tothe generalplane of the wheel IIi` and. are of uniform radial length and angular' width and spacing`A with the excels'- tion oftwo or` four vanesl' I'I, equally distributed aroundI the periphery, which are.' of approximately twice the angularwidth and radialF length of? the other varies H The' spacing between ad-r jacent small' vanes IV'I` may be a smallz' fraction e. g. one vfifft'hofthe angular. width of 'the small vanes, the spacing between the; large vanos Il" and-between the largevanes and' adjacent small vanes being somewhat greater.-

The spindle.- Iq8', carrying. the" diffuser I6; is provided withY a helical' groove 4% in which engages theend of a pin'` it]` fixed in the boss or hub.v of the diffuser I6', the arrangementfbeing such that the diuser is capable of limited up and' down movementon the spindle: I8 as determin'ed. by the'movement of the pin 41 in the groove'.r dit.. The plane. of' rotation: of.' the dif fuser It', when in its-v lowest. position onA the spindle I8, as determinedv by gravity, is such thatV all' theV vanes. I'I: andf I'I-A project into the pathof the-waterjlet', issuing` from thejetoutlet 2 of nozzle` I., so that strongrotational. impulses' are imparted through all the vanes I1 and I1 to the diffuser at starting, making for a rapid running up to speed. Due to its rotation the diffuser IB is moved vertically upwards on the spindle I8 by virtue of the engagement of the pin 41 in the helical groove 4&5. lThis vertical movement partially withdraws the smaller vanes I1 from the water jet and thereafter rotation is maintained mainly by impingement of the water jet on the larger vanes I1', whilst the water jet is effectively broken up into a curtain. When the diffuser I6 reaches its uppermost position against a xed stop 48 on the upper end of the spindle I8 it imparts rotation to the spindle I8.

Rotation of the diffuser I6 and the spindle I8 by the Water jet is utilised to impart the rotation to the nozzle I about the vertical axis on its support.

For this purpose a worm (not shown) on the spindle I8 within the gear box I3 makes driving engagement with a worm wheel xed on a spindle 20 projecting laterally from the gear box I5, and the end of said spindle carries a crank arm 2|, the crank pin 22 of which is connected to one end of a rod 23 extending longitudinally of the jet nozzle I. The other end of the rod 23 is pivotally connected with the upper end of a lever 24 mounted at its lower end for movement about one end of a spindle 25 extending through bearings in a gear box 26 carried by the curved hollow body 3 at the lower end of the ,iet nozzle I.

The spindle 25 extends horizontally through the vertical plane containing the axis of the nozzle I and the lever 24 is of greater length than the crank arm 2i, so that the lever 23 is caused to make to and fro rocking movements of given angular extent in a vertical plane about the axis of the spindle 25.

Upon the spindle 25, between the end of the gear box 26 and the lever 24 is keved a ratchet Wheel 21, and within the gear box 25 the spindle 25 carries a fixedly mounted worm 28 making meshing engagement, through an aperture in the wall of the gear box 26. with the teeth 29 (Fig. l) of a worm-ring 3|] surrounding and fixed to the upper end of the fixed ring forming a part of the station-ary support.

Drive is imparted from the rocking lever 24 to the spindle 25 and therefore. through the reaction between the worm-ring 30 and the worm 28, to the nozzle I relative to its stationary support, through the (Jo-operation of a pawl 3|, carried by the lever 24, with the ratchet wheel 21.

The pawl 3| is formed as a three-armed body mounted to rock about a fixed pivot 32 on a lateral projection 33 intermediate the ends of the rocking lever 24, two of the arms 34 and 35 of the pawl 3| terminating in teeth each adapted to make one-way driving engagement with the teeth of ratchet wheel 21, the said teeth of the ratchet wheel 21 being of symmetrical form as shown. The pawl 3| is adapted to take either one of two alternative positions relative to the lever 24, in which one or the other but not both of the teeth on the two arms 34 and 35 is in engagement with the ratchet wheel and the arrangement is such that with the tooth on arm 34 of the pawl 3| in engagement with the ratchet wheel 21 stepby-step rotational movements are imparted to the ratchet wheel and therefore to the nozzle I in one direction during successive rocking movements of the lever 24 in one direction about the spindle 25, whilst with the tooth on the other arm 35 of the pawl 3| in engagement with the ratchet wheel, step-by-step rotational movements are imparted to the ratchet wheel 21 and to the nozzle I but in the opposite direction, during successive movements of the lever 24 in the other direction about the spindle 25. The pawl 3| is retained in the selected one of its two alternative positions by the engagement of the end of a spring-loaded plunger at one `side or the other oi a projection 31 onthe edge of the pawl 3| (Fig. 2), the said plunger 36 being capable of yielding to an extent permitting the back of that tooth on arm 34 or 35 of the pawl 3|, whichever is engaged with the ratchet wheel 21, to slide over the teeth of the ratchet wheel during the idle stroke of the pawl 3 I.

Means are provided to move the pawl from one of its two positions relative to the rocking lever 24, to the other to reverse the direction of rotation of the nozzle about the vertical axis on its support at each end of .a movement of predetermined angular extent by the nozzle, so that the water spray may be deposited repeatedly over the same sector of a circular area.

For this purpose a setting member is provided in the form of a lever 38 xedly mounted at one of its ends on a vertical spindle 39 carried in bearings at the end of the gear box 2E remote from the pawl 3 I. rlhe free end of the lever 38 is furnished with a two-armed yoke 40 the arms of which extend one on each side of the third and upwardly extending arm 4I of the pawl 3| but spaced therefrom, the width between the arms of the yoke 40 being such as to permit the pawl 3| normally to move in unison or substantially in unison with the lever 24, that .is to say without the third arm 4I of the pawl 3| engaging said arms. The spindle 39 extends below the gear box 26 and at its lower end carries a crank arm 42 on the end of which is a downwardly extending pin 43. Near the upper end of the xed base support for the rotatable nozzle I is xedly mounted a surrounding ring 44 carrying stop members 45 adjustable in position on the ring 44 about the vertical -axis of rotation of the nozzle I, these stop members 45 lying in the path of the above described downwardly extending pin 43.

The operation is as follows:

With the apparatus erected on its stationary support and tripod as in Fig. l and the water connection made at point 9, the water jet emerging from the outlet 2 from the nozzle I impinges upon the vanes I1 and I1 of the diffuser I6 so that the latter is caused to rotate with its spindle I8 on the nozzle I. Rotation is imparted from the worm on the diffuser spindle I8 to the worm wheel on spindle 20 in the gear box I9 near the outlet end of the nozzle and the crank-arm 2| rotated to reciprocate the rod 23 extending along the jet nozzle I, to move the rocking lever 24 to and fro about the axis of the spindle 25. Movement is imparted from said lever 24 to the ratchet wheel 21 and the worm spindle 25 on which it is mounted, during the successive movements of the rocking lever 24 in one direction and according to the position of the three-armed pawl 3| relative to the lever, that is to say according to which of the teeth on the two arms 34 and 35 o the pawl 3| is in engagement with the ratchet Wheel 21, the same tooth of the pawl 3| sliding over the ratchet wheel 21 during movements of the lever 24 in the reverse direction. v

Thus the jet nozzle I is rotated on the xed support formed by parts 5, 6, 1, 8, in a succession of steps in one direction through the engagement in gear box 26, with the xed worm ring 30 on the upper end of the support.

Rotational movement of the nozzle I in that direction continues until the downwardly extending vertical pin 43 on crank arm 42 at the lower end of spindle 39 makes engagement with one of the set adjustable stops 45 on the fixed ring 44 surrounding the fixed support. Thereafter, as the jet nozzle I is further moved, said pin 43 is held and the lever 38 mounted at the upper end of the spindle 39 supported by the gear box 26 moving with the jet nozzle I is caused to rock on the gear box 26 into position to change the relative positions of the arms of the yoke 40 and the third arm 4I of the pawl 3I, and in such a manner that as movement of the rocking lever 24 continues the third arm 4I of the pawl body 3I engages a limb of the yoke 40 before the stroke of the lever 24 is completed and the pawl 3| is held and caused to rock relative to the lever 24 against the restraint of the spring-loaded plunger 35 to disengage the previously operative tooth on one of the arms 34 or 35 of the pawl 3I from the ratchet Wheel 27 and engage the alternative tooth on the other arm 34 or 35 of the pawl 3l with the ratchet wheel 2'I, the spring-loaded plunger 36 engaging at the other side of the projection 31 on the pawl 3l to maintain the latter in the new position relative to the lever 24. Thereafter the jet nozzle I is rotated step-by-step but in the reversed direction until the other set stop 45 is engaged by the downwardly extending pin 43 to again move the lever 38 bearing the yoke 40. The direction of rotation of the nozzle I about the vertical axis is reversed each time the said pin 43 engages a stop member 45.

It will thus be seen that the diffused Water jet from the nozzle may be caused to fall repeatedly upon the same selected sector of a circular area.

I claim:

A water sprayer, comprising a jet nozzle, a support therefor upon which said jet nozzle. is capable of rotating, a rotary diffusing element mounted on the jet nozzle and rotatable by the jet of water from the nozzle, and means driven by said rotary diffusing element for rotating the jet nozzle upon its support in either direction, said means in cluding gearing between the rotatable jet nozzle and its support and a transmission between the diffusing element and said gearing comprising a ratchet wheel carried with and rotatable on the jet nozzle, a rocking member carried with the jet nozzle and rockable in a plane normal to the axis of the ratchet wheel, a double-ended pawl member pivoted on said rocking member for step-bystep driving cooperation with the ratchet wheel and means for moving said double-ended pawl between alternative positions on said rocking member, said means for moving the double-ended pawl member comprising a vertical spindle, bearings on the jet nozzle, said vertical spindle being supported in said bearings, a yoke iixedly mounted at the upper end of said vertical spindle and embracing a part of the double-ended pawl member with clearance, a crank flxedly mounted on said spindle and stop means connected with the stationary support for the rotary jet nozzle for engagement by the crank when the rotary nozzle reaches a selected point in its rotational movement on the support, to rotate said spindle and cause the said yoke to contact the double-ended pawl during a subsequent movement of said pawl with the rocking member to cause the doubleended pawl member to take its alternative position relative to the rocking member and reverse the direction of the step-by-step rotation of the jet nomle on the support.

MIROSLAV SIGMUND.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,594,729 Higgins Aug. 3, 1926 2,029,788 Ostlng Feb. 4, 1936 2,029,795 Richard Feb. 4, 1936 FOREIGN PATENTS Number Country Date 633,933 France Feb. 6, 1928 y810,555 France Mar. 24, 1937

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