US2604360A

US2604360A - Water sprayer

Info

Publication number: US2604360A
Application number: US788137A
Authority: US
Inventors: Sigmund Miroslav
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-11-12
Filing date: 1947-11-26
Publication date: 1952-07-22
Anticipated expiration: 1969-07-22

Description

y 1952 M. SIGMUND 2,604,360

. WATER SPRAYER.

Filed Nov. 26, 1947 Patented July 22, 1952 WATER SPRAYER Miroslav Sigmund, Gosforth, England Application November 26, 1947, Serial No. 788,137 In Great Britain November 12, 1945 Section 1; Public Law 690, August 8, 1946 Patent expires November 12, 1965 Claims. (Cl. 299--68) The present invention relates to improvements in water sprayers of the type comprising a nozzle usually rotatable, and a water diffusing or atomising element rotatably mounted on the nozzle so that the periphery thereof projects into the path of the Water jet from the nozzle, rotation of the diffusing element and if necessary also the nozzle, being eliected byreaction pressure of the water jet emerging from the nozzle, and the extent to which the said diffuser or atomiser element projects into the path of the water jet being variable.

In accordance with the invention a water sprayer is provided comprising a jet nozzle and a rotary diffusing element for the jet, said diffusing element being arranged to rotate in a plane of rotation intersecting the path of the jet about the axis of a supporting member itself movable relative to the jet nozzle under the reaction pressure between the jet and the diffusing element to move the axis of rotation of the diffusing element and thereby vary the extent of the projection of the diffusing element itself rotatable in a bearing connected with the jet nozzle and constructed to permit movement of the shaft towards and away from the nozzle, the'said shaft being utilised in conjunction with suitable reduction gearing to impart rotation to the jet nozzle.

The invention is illustrated by way of example in the accompanying drawings in which Fig. 1 is a view in side elevation of a complete sprayer,

Fig. 2 is a view in section on the line 22 of Fig. 1, and on a larger scale, of the gearing utilised to rotate the jet nozzle,

Fig. 3 is an end view partly in section andon a larger scale looking towards the end of the nozzle in the direction of the arrow in Fig. 1; and

Fig. 4 is a sectional view of the jet nozzle taken on the line 44 of Fig. 1.

Referring to the drawings, the jet nozzle is formed by a tubular barrel I having a suitable jet aperture 2 at one end and fixedly connected at the other end to a curved hollow body 3.

The curved hollow body 3 is fixedly connected with an inner tubular extension 4 which is a rotating fit within a sleeve 5 supported by a collar 6 in a tripod 1, the lower end of the tubular ex- 2 tension 4 engaging a shoulder 8 within sleeve 5. The sleeve 5 is provided at its lower end with a junction piece 9 for connection with a water supply pipe (not shown).

At the upper end of the sleeve 5 is'fixedly mounted a ring i0 within which the tubular extension 4 can rotate, the ring in being provided with a radially outwardly directed flange ll Packing rings l2 are provided between the sleeve 5 and the tubular extension 4 to provide a watertight joint.

The curved hollow body 3 at its lower end is surrounded by an integrally formed curved section flange [3 which covers the radial flange ll on ring l0, and the space within the flange I3 is closed from below by a ring l4 between which and the lower side of radial flange I I is mounted an anti-friction thrust bearing l5. The outer periphery of radial flange II is toothed to form a worm gear wheel. 7

When the sprayer is mounted, as shown in Fig. 1, the barrel l extends at an upward inclination and is adapted to rotate on the bearing l5 about the vertically disposed axis of sleeve 5.

The barrel 1 at the outlet endis preferably filled with a nest of parallel tubes-l6, Figs. 1 and 4, to eliminate or reduce turbulence. I

The diffuser is in the form of a spoked wheel I! having a plurality of uniformly inclined vanes [8 formed on its periphery. As an examplethe vanes are inclined at an angle of about 45 to the plane of the wheel and may be of uniform angular width and spacing with the exception of two or more vanes l8 equally distributed around the periphery; which are of. approximately twice the angular width and radial length of the others. The circumferential spacing between adjacent vanes I8 may be a small fraction e. g. one fifth the angular width of the small vanes, the spacing between a large vane i8 and adjacent small vanes however being somewhat greater.

The diffuser or vane wheel I! is fixedly mounted on the end of a shaft I 9 extending alongside the nozzle I and rotatably supported in bearings connected with the nozzle, the plane of rotation of the vane wheel or difiuser l1 extending in a general direction normal to the axis of the nozzle and with the peripheral vanes I 8 and I8 thereof arranged to project into the path of a water jet emerging from the nozzle.

The wheel I! is preferably braced by means of a spider the arms 20 of which radiate from an extension of the wheel hub.

The bearing for the forward end. of the shaft i9 is formed by a bush 2| which is carried in trunnion bearings 22 between the extremities of a pair of arms 23 rigid with, and extending outwards from, a yoke 24. The ends of the yoke are mounted on pivots 25 provided on diametrically opposite sides of the barrel and axially aligned with one another so that the yoke may swing towards and away from the barrel I. The axes of the trunnion bearings 22 and of the pivots 25 in the case illustrated lie in or near a common plane. A flange 26 serves to limit the longitudinal movement of the shaft |9 in the bush 2| in the outward direction i. e. to the right in Fi 1.

The other end of the shaft is provided with a sliding coupling formed by a pin 21 on the main part of the shaft sliding in longitudinal slots 28 in a sleeve extension 29, and the sleeve extension is connected through a flexible joint 30 with the spindle 3| of a gear worm 32 mounted in bearings in a casing 33 fixed to the flange 53 on curved hollow part 3.

The worm 32 (Fig. 2) meshes with a worm wheel 34 fast on a spindle 35 driving a further worm 36 which meshes with the teeth on the periphery of the radial flange H on ring it fixed at the upper end of stationary sleeve 5.

When the sprayer is set in operation the water jet from outlet 2 impinges upon the inclined vanes l8, l8 of the vane wheel I! the direction of impact being such as to deflect the water upwards. The wheel I! is thus set into rotation together with the shaft I9 on which the wheel is fixed, so that drive is imparted to the

gearing

32, 34, 36 and the barrel or jet nozzle is rotated about the vertical axis of the stationary toothed flange I|. Pressure of the jet on the vanes of the wheel I! during speeding up causes the rotating shaft I9 to move, first a small distance longitudinally along the barrel asis permitted by the sliding coupling 21, 28, 29, to bring the flange 26 fast on the shaft |9 into engagement with the end of the bush 2 I, and thereafter the yoke 24 and the integral arms 23 carrying the bush 2| are rocked about the pivots 25 so that the bush 2| is moved outwards from a position close to the barrel l as shown in dotted lines in Fig. 3, to a position such as that shown in Fig. 1 or in full lines in Fig. 3, the bush turning in its trunnion bearings 22, so that the forward end of the shaft |9 takes a position further from the axis of the barrel as clearly shown in Fig. 3.

The vanes of the diffuser I! are thus caused to withdraw at least partially from the path of the water jet as shown in Fig. 3 so that the water impinges upon the edges or peripheries of the small vanes l8 instead of in the region of the centres thereof while still meeting the large vanes l8 near their centres.

Under these running conditions continued rotation of the vaned wheel I! with shaft l3, and therefore also of the jet nozzle about thevertical axis, is effected at least for the main part by impact of the jet on the larger vanes It. Movement of the shaft l9 and the diffuser I! in the reverse direction to that described above, 1. e. when returning to rest after use, or upon re duction of the water pressure, is effected in the case illustrated by gravity.

In use the water is distributed by the diffuser I! in the approximate form of a flat curtain closely simulating rain, the curtain moving slowly about the vertical axis of rotation of the jet nozzle.

Water striking the large vanes i8 falls to the ground in such manner as to form approximately the half of the curtain nearest to the sprayer whilst the more distant half or part of the curtain is formed by water which has been deflected by the smaller vanes l8.

As an example, with a water pressure of about 60 lbs. per square inch the diffuser will rotate with a speed in the region of 3500 revs. per minute, the jet nozzle making one complete turn in about 1 minutes.

The length of the curtain can, within limits, be maintained approximately constant with different water pressures by varying the area of the jet orifice e. g. by substituting one nozzle end for another.

I claim:

1. A water sprayer comprising a jet nozzle adapted to project a water jet at an upward inclination when in use, a rotary diffusing element adapted to rotate in a plane intersecting the path of the water jet from said nozzle so as to break up the water jet, a shaft carrying said rotary diffusing element and rotatable therewith, a bearing for said shaft including a sleeve itself mounted to rock in a plane substantially parallel with the jet nozzle, a carrying member for said sleeve pivoted on the jet nozzle for movement of the sleeve carried by said carrying member to wards and away from the jet nozzle, and a flange on the shaft adapted to engage and move the sleeve in the direction away from the jet nozzle by an endwise movement of the shaft imparted thereto by pressure of the water jet on the diffusing element.

2. A water sprayer comprising a jet nozzle, adapted to project a water jet at an upward inclination when in use, a rotary diffusing element adapted to rotate in a plane intersecting the path of the water jet from said jet nozzle so as to break up the water jet, said rotary diffusing element being also adapted for movement of limited extent in the direction of its axis of rotation, a shaft extending alongside and longitudinally of the jet nozzle said shaft carrying said rotary diffusing element and being rotatable therewith, a bearing for said shaft, a carrying member for said bearing freely pivoted on said jet nozzle to swing said bearing towards and away from and longitudinally of said jet nozzle and in a plane substantially parallel with said jet nozzle, said pivoted carrying member being movable in one direction about its pivot by movement of the rotary diffusing element in the direction of the axis of the said shaft, by pressure of the water jet on said diffusing element.

3. A water sprayer comprising a jet nozzle adapted to project a water jet at an upward inclination when in use, a rotary diffusing element adapted to rotate in a plane intersecting the path of the water jet from said jet nozzle under reaction pressure of the Water jet, and thus acting to break up the water jet, said rotary diffusing element being also adapted for movement of limited extent in the direction of its axis of rotation, an axis shaft for said diffusing element, means supporting said axis shaft parallel to the generaldirection of the axis of said jet nozzle, said supporting means including a bearing member for said axis shaft and a carrying member for said bearing member located near the end of said axis shaft adjacent said diffusing element and freely pivoted for swinging movement on said jet nozzle to move said bearing member in a plane substantially parallel with the jet nozzle,

and an abutment on said axis shaft adapted to transmit axial movements of said diffusing element and its axis shaft to said bearing member and said carrying member to effect swinging movements thereof in said plane and movement of the axis shaft towards and away from said jet nozzle, thereby varying the extent of the projection of said diffusing element into the path of the jet.

1. A water sprayer comprising a base support, a jet nozzle mounted for rotation about a fixed axis on said base support and adapted to project a water jet at an upward inclination when in use, a rotary diffusing element adapted to rotate in a plane intersecting the path of the water jet from said jet nozzle under reaction pressure of the water jet, and thus acting to break up the water jet, said rotary diffusing element being also adapted for movement of limited extent in the direction of its axis of rotation, and axis shaft carrying said diffusing element and rotatable by and with said diffusing element, means supporting said axis shaft parallel to the general direction of the axis of said jet nozzle, said supporting means including a bearing Inember for said axis shaft and a carrying member for said bearing member located near the end of said axis shaft adjacent said diffusing element and freely pivoted for swinging movement on said jet nozzle to move said bearing member in a plane substantially parallel with the jet nozzle, an abutment on said axis shaft adapted to transmit axial movements of said diffusing element and its axis shaft to said bearing member and said carrying member to effect swinging movements thereof and movement of the axis shaft in said plane towards and away from said jet nozzle, thereby varying the extent of the projection of said diffusing element into the path of thejet, gearing between said axis shaft and said rotatable jet nozzle and a sliding coupling between said axis shaft and said gearing whereby said gearing may be driven by said axis shaft and said jet nozzle rotated on said base support.

5. A Water sprayer comprising a base support, a jet nozzle mounted for rotation about a fixed axis on said base support and adapted to project a water jet at an upward inclination when in use, a rotary diffusing element adapted to rotate in a plane intersecting the path of the water jet from said jet nozzle under reaction pressure of the water jet, and thus acting to break up the water jet, said rotary diffusing element being also adapted for movement of limited extent in the direction of its axis for rotation, an axis shaft carrying said diffusing element and rotatable by and with said diffusing element, means supporting said axis shaft parallel to the general direction of the axis of said jet nozzle, said supporting means including a bearing member for said axis shaft and a carrying member for said bearing member located near the end of said axis shaft adjacent said diffusing element and freely pivoted for swinging movement on said jet nozzle about an axis in a substantially vertical plane containing the axis of the jet nozzle, and approximately normal to the axis of the jet nozzle, to move said bearing member in a plane substantially parallel with the jet nozzle, and an abutment on said axis shaft adapted to transmit axial movements of said diffusing element and its axis shaft to said bearing member and said carrying member to effect swinging movements thereof in said plane approximately parallel with the jet nozzle, and movement of the axis shaft towards and away from said jet nozzle, thereby varying the extent of the projection of said diffusing element into the path of the jet.

MIROSLAV SIGMUND.

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

UNITED STATES PATENTS Number Name Date 1,763,979 Nelson June 17, 1930 2,310,796 Lappin Feb. 9, 1943 2,535,469 Wanke Dec. 26, 1950 FOREIGN PATENTS Number Country Date 143,109 Austria Oct. 25, 1935 265,225 Great Britain July 21, 1927 275,593 Italy June 27, 1930 561,670 Germany Oct. 17, 1932