US3810579A

US3810579A - Automatic sprinkling apparatus

Info

Publication number: US3810579A
Application number: US00244494A
Authority: US
Inventors: Palma H Di
Original assignee: PALMA H DI
Current assignee: PALMA H DI
Priority date: 1971-04-19
Filing date: 1972-04-17
Publication date: 1974-05-14
Anticipated expiration: 1991-05-14
Also published as: DE2218736C2; IT960895B; OA04078A; GB1393581A; AT337490B; DE2218736A1

Abstract

A sprinkling apparatus comprising two distinct parts, one movable part or carrier securing sprinkling, and a fixed part or frame provided with a drum and securing the recuperation and winding around this drum of an under pression water feeding pipe, connecting the said fixed part to the sprinkling movable one, the travelling of the sprinkling movable part being secured by means of the pipe and from a jack actuated during sprinkling by the pressure of the sprinkling water, this jack being fitted onto the fixed part and securing the rotary motion of the drum for the recuperation and winding of the said pipe.

Description

United States Patent [1 1 Di Palma [451 May 14, 1974 AUTOMATIC SPRINKLING APPARATUS [76] Inventor: Hugo Roland Di Palma, Lot et Garonne, Fauillet, France [22] Filed: Apr; 17, 1972 [21] Appl. No.: 244,494

[30] Foreign Application Priority Data Apr. 19, 1971 France 71.13802 Apr. 13, 1972 France 72.12990 [52] US. Cl. 239/197, 2'39/199 [51] Int. Cl B65h 75/00 [58] Field of Search 269/197,]98, 199, 189, 269/190 [5 6] References Cited UNITED STATES PATENTS 3,512,715 5/1970 Bryant 239/199 7/1933 Nielsen 239/199 2,602,696 7/1952 Salafin 239/197 2,755,035 7/1956 Moulder 239/199 3,477,643 11/1969 Braninga 239/197 Primary Examiner-Lloyd L. King Attorney, Agent, or FirmSherman Levy [57] ABSTRACT A sprinkling apparatus comprising two distinct parts,

one movable part or carrier securing sprinkling, and a fixed part or frame provided with a drum and securing the recuperation and winding around this drum of an under pression water feeding pipe, connecting the said fixed part to the sprinkling movable one, the travelling of the sprinkling movable part being secured by means of the pipe and from a jack actuated during sprinkling by the pressure of the sprinkling water, this jack being fitted onto the fixed part and securing the rotary motion of the drum for the recuperation and winding of the said pipe.

11 Claims, 18 Drawing Figures PATENTEBIAHMQM 31810579 sum uunr15 FIG. 4

PAYENTEBIAHMM 3.810.579

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.sum 15 0r15 1 AUTOMATIC SPRINKLING APPARATUS The present invention relates to an automatic sprinkling apparatus.

This sprinkling apparatus is characterized in that it is constituted of two distinct parts, a movable part or carrier securing sprinkling and a fixed part or frame provided with a drum and securing the recuperation and winding of an under pression water feeding pipe connecting the said fixed part to the sprinkling movable one, the travelling of the sprinkling movable part being secured by means of the pipe and from a jack actuated during sprinkling by the pressure of the sprinkling water, this jack being fitted onto the fixed part and securing the rotary motion of the drum for the recuperation and winding of the said pipe.

According to another characteristic of the invention,

the fixed part is provided with guiding means which' help to the pipe winding, said guiding means being drived owing to the water pressure which secures the drum rotary motion.

According to another characteristic, the drum is constituted by two plates connected to each other by a cylindrical part which is the winding support of the sprinkling pipe, the plates being integral to a hollow boss connected to both the water feeding and sprinkling pipe.

According to another characteristic of the invention, the movable part is constituted by a sleigh comprising a frame provided with shoes and by a rigid pipe, this pipe being connected at one end to the sprinkling pipe, and at the other end to a sprinkling device.

According to another characteristic, the fixed part comprises a supporting plate upon which the movable part is resting.

The invention is depicted by way of non-limitative example in the attached drawings, wherein:

FIG. I is a view of the right part of the sprinkling apparatus;

FIG. 2 is a view of the left part of the same apparatus;

FIG. 3 is a front view of the apparatus, from which the sleigh has been removed, a cross-section view according to A-A of FIG. 2;

FIG. 4 is a diagrammatical section-view showing the turret upon which is fitted the drum receiving the sprinkling pipe;

FIG. 5A and FIG. 5B are cross-section views, horizontal and vertical respectively, of the reversing box;

FIGS. 6 and 7 show details of the double-acting jack and of the driving piston;

FIGS. 8A and 8B are front views of the sleigh bearing the sprinkling element;

FIG. 9 is a lateral view of a sprinkling apparatus according to the invention, the carrier being in a lifting position onto the inclined plane provided to this end;

9. 015? r qw atLQQfstths:,sprin lins ratus shown in FIG. 9, the carrier being in a lifting position;

FIG. 11 is a view of the left part of FIG. 9;

FIG. 12 is a view of the right part of FIG. 9;

FIG. 13 is a lateral view of the device which secures the guiding of the pipe winding;

FIG. 14 is an upper view of FIG. 13;

FIG. 15 is a view of the right part of FIG. 13;

FIG. 16 is a diagram of the whole of the hydraulic circuit.

The sprinkling apparatus (FIGS. I, 2 and 3) according to the invention is constituted by a drum I, fitted to a frame 2 by means of a turret 3 of strut 4. This frame comprises, for example, a rear axle 5 and wheels 6, its forward end 7 is provided with supporting means 8 and hooking means 9 so as to be connected to a tractor vehicle.

The drum is intended to receive a sprinkling pipe 10 connected to a sleigh 11.

The boss of the drum 1 is formed by a hollow cylinder 101 and tight bearings 102. This boss secures the distribution of the sprinkling fluid that it receives from the feeding pipe 103, being connected to pipe 10 through pipe 104.

In FIGS. 1 and 2, the sleigh is in a resting position upon a supporting plate 12 integral to struts 4 of the turret. In that way, the sleigh support as well as the drum 1 are rotatingly integral to each other according to the vertical axis of the turret.

The forward end of the support plate 12 comprises an access inclined plane 13 shown in a lifting position.

When the sprinkling device is under use, the turret 3 is made pivoting in the chosen direction, the access inclined plane 13 is lowered and the sleigh ll pulled off.

This sleigh will be described with more details in relation to FIGS. 8A and 8B.

The turret 3 (FIG. 4) is constituted by a cup 31, integral toan axis 32 fitted into a ball-bearing 33 fixed itself to the frame 2. The outer edge 34 of the cup 31 rolls on a small-pulley path 35, also integral to the frame. The cup 3 is thus supported and maintained rotating, so as to have it receiving the weight of the sleigh and that of the drum provided with the pipe.

For working out the sprinkling device according to the invention, the turret 3 is made pivoting, and the drum is aligned according to the direction of the strip of ground to be sprinkled. Then, after having lowered the inclined plane 13, the sleigh 11 is pulled off so as to be placed at the chosen spot. Through this pulling off, the pipe which is integral to the sleigh 11 is unwinded; thus, the sleigh 11 is placed at one end of the field, the vehicle bearing the drum 1 being at the other end. It may also be proceeded in the reverse manner, i.e.: by carrying the vehicle 10 at the end of the field, intended to sleigh 11, then pulling off said vehicle and unwinding the pipe 10. When the vehicle bearing the drum 1 and the sleigh 11 are at the respective ends of the field to be sprinkled, the feeding pipe 14 of pipe 10 is connected to the water feeding point.

The sprinkling device provided on the sleigh 11 then starts a revolving sprinkling; at the same time, a part of the water under pressure arriving into the pipe 14 is also directed to the double-acting jack through the pipe 15. This jack 16 (FIG. 2) will be described in relation to FIGS. 6 and 7. y

The purpose of this jack is to make the drum 1 rotating little by little, by acting on the teeth 101 by means of the piston rod -161. Through an alternative movement, it communicates to the drum 1 a little by little forward movement. This rolling movement is transmitted to the pinion 18, connected, by an intermediate pinion l9 and two

chains

20, 21, to a pinion 22, which drives the guiding device 23 (FIG. 3) securing the winding of the pipe.

This guiding device is constituted of a hanger 231, provided with an aperture whose size corresponds to that of the pipe. This hanger is integral to a sliding casing 232 fitted and screwed on the one hand on a guiding rod 233, on the other hand on a threaded shaft 234 integral to the pinion 22. The intermediate pinions 19a and 19b are the inlet and outlet pinions of the reversing device respectively.

In effect, when the end of a winding layer is reached, the displacing direction of the hanger 231 must be changed in order to guide the returning winding layer.

To this end, the hanger 231 acts upon one of the stop-travel 235. These two stops 235 are integral to a rod 236, sliding according to its axis and driving a reversing tap 24. This reversing tap 24, which receives water under pressure, drives the reversing 25 (FIG. 3 and FIGS. 5A and 5B). The commutation of this reversing starts the change of rotation of the pinion 19b in relation to pinion 19a. This inversed rotation is transmitted to the threaded shaft 23, which removes the hanger 231 in the opposite direction. The winding is thus carried out as previously. A reversing tap 224 is necessary so as to avoid the blockage which could occur at the two ends of the displacement of the hanger 231, further to the little by little rotation movement of the drum 1.

As it is shown in FIGS. 5A and 5B, the reversing 25 is constituted by an inlet shaft 251, provided with two

pinions

252, 253, with an intermediate shaft 254 comprising

pinions

255 and 256 and with an outlet shaft 257. The outlet shaft 257, rotatingly integral to the pinion 19b, comprises a portion upon which a pinion 258 is provided.

In FIG. 5b, the

shafts

251 and 254, located in the same horizontal plane, are partly hidden.

According to the way the pinion 258 engages either the pinion 256 or the pinion 253, one obtainsa rotary movement either in one or the other direction. This movement is transmitted to the outlet pinion 19b.

The double-acting pinion 16 secures the rotation driving of the drum 1 with the object of FIGS. 6 and 7.

From the pipe 15, a pipe feeds the hydraulic drivings of the jacks with waterunder pressure. Each jack head is realized as shown in FIGS. 6, 7, ie that it comprises two series of two grooves realized in a different sheer plan, the series C and the series D. These two grooves are realized partly on the circumference of the piston, so that they are offset and opposed one in relation to the other in the two series.

This apparatus works as follows:

Upon the sleeve 172 of the piston head 17], four cross-arranged drillings 173 are made. An identical arrangement, with alternated grooves and water distribution apertures 162 is also made upon the head 164 of the jack 16. The water coming from the pipe penetrates the drilling 173 and, after having passed through the groove 174,, (shown in dots and dashes), passes through the aperture 173 and is canalized on the back of the piston 165 by the aperture of admission 166, which causes the forward movement of the axis 161, when the latter arrives at the end of its travel, regulated by the rod 167 and the stop 168 integral to the axis.

Compressed by the piston 165, the water, initially stored in the cylinder-chamber 169, is drained ofi through the aperture 170, canalized towards the aperture 173 penetrates the groove 174 and is then drained off through the aperture 173,. The water is then conducted to a drainage-jet which secures, in function of the adjustment of its drainage aperture, the rapidity of the cycle evolution, and, consequently, the moving forward of the assembly B.

When the stop 168 is put in contact with the end of the rod 167, the latter, integral to the piston 164, causes the displacement of said piston according to the arrow F 1.

When the head of the piston 164 is displaced so that the grooves 175 be facing the apertures 162, the water is then canalized through the fourth aperture (not shown in this Figure, which is a cross-section view).

From the aperture (not shown), the water is canalized towards the aperture 176, and acts through pressure on the surface of the piston 171 which moves again inside its cylinder 177 and makes then the grooves 174 alternating with the grooves 178, which reverses the movement which is made continuous by the water circuit and renews the displacement of the heads of the pistons.

The water stored inside the front part of the piston 171 is canalized through the aperture 179 towards the groove, penetrates the fourth aperture 173 (not shown in FIG. 6) and evacuates through the aperture 173:; towards a drainage-jet.

FIGS. 8A and 8B are diagrammatical views of supporting sleigh in the sprinkling device not shown; this sleigh 11 rests and slides upon three shoes 1 l1 and 1 12. It is connected to the pipe by a rigid tube 26, whose free end is ended by a vertical portion intended to receive the basis of the revolving sprinkling system. This sleigh 11 comprises a frame 113 which links the

shoes

111, 112 and supports the pipe 26.

The shape of the

shoes

111, 112 slides so that the supporting surface thereof be sufficient for the sleigh l 1 not to penetrate theground. The shoes 1 1 1 and 112 cooperate with guiding rails not shown, provided on the access inclined plane 13 and the supporting plate 12, so as to allow the automatic return of the carrier 11 upon this support plate. In fact, the little by little rotary motion of the drum 1 exerts a pull on the pipe 10 which pulls little by little the sleigh 11. As the drum 1 is still aligned with the sleigh 1 1 and that the support plate 12 is rotatingly integral to the turret 3 and the drum 1, is also aligned with the sleigh l 1, the automatic return of the sleigh 1 1 can easily be carried out onto this support plate 12.

So as to facilitate the taking up of the sleigh 11 upon the access inclined plane 13, the latter comprises at its forward end two guiding cylinders 131, the axis of which is substantially perpendicular to the access inclined plane 13 in a lower position.

In FIGS. 9 to 15 is shown another mode of embodiment of the apparatus according to the invention, this apparatus securing an automatic working out of the opening or closing of the feeding water circuit, relating to the stop of the sprinkling pipe winding and the adjustment of the winding speed in relation to the number of turns of pipe already winded around the drum.

This apparatus secures, besides, the automatic raising of an inclined plane upon which is placed the aprinkling carrier when it is no more under use.

This sprinkling apparatus comprises a frame 301, provided with wheels 302 and a stand 303, this frame supporting, by the intermediary of a turret 304 rotatively fitted and of a tubular frame 305, a drum 306 around which the pipe 307 connected to an elbowed tube 308 and a sprinkling basis 309 is winded.

The elbowed tube 308, which receives the nozzle 309 and the end of the pipe 307, is fixed upon a carrier 310 comprising three shoes 311 intended to secure the sliding of the carrier on the ground when pulled by the pipe 307 which winds around the drum 306 and while the nozzle 309 spreads over a great surface the sprinkling water.

On the frame 301 an inclined plane 313 is mounted pivoting in 312 which, when it rests on the ground, forms an inclined plane upon which the carrier 310 can be raised.

The raising of the inclined plane 313 is obtained by means of an hydraulic jack 314 feeded with water with the aid of the sprinkling circuits.

FIG. shows thus the assembly ready for being transported, the carrier 310 being placed on the inclined plane 313 in a lifting position.

The rotary motion of the drum 306 winding the pipe 307 and pulling towards the frame 301 the carrier 310, is obtained with the aid of a double-acting jack 315 whose rod 316 successively applies against the paddles 317 provided on the circumference of the drum 306.

The feeding'of water of the sprinkling apparatus is carried out through a tube 318 whose aperture 319 is connected to a pumping station. This tube 318 is assembled with the hollow axis 320 of the drum 306 and the sprinkling pipe 307 is connected to this hollow axis 320. The end of the hollow axis 320 of the drum 306, located towards the tube 318, comprises a filter 321, while the opposed end of said hollow axis 320 comprises a decanting filter 322. At the outlet of this filter 322 a canalization 323 is connected which constitutes an intake of under pressure water intended to the driving of various valves and distributors.

The hydraulic circuit of this apparatus comprises various elements the whole of which is shown in FIG. 16. In this Figure, it has been shown in 339 a pumping station producing under pressure water at a sufficient output. This pumping station is connected to the aperture 319 of the tube 318 and feeds with water the hollow axis 320 through the filter 321. On this axis 320 the pipe 307 is connected, as already stated, which feeds the tube 308 and the nozzle 309. This axis 320 also feeds the decanting filter 322 which, through the pipe 323, feeds the distributor 324. This distributor 324 puts alternatively under pression the two pilots of the two ways valve 325, so as to remove in each way the rod 316 of the jack 315. The swinging of the distributor 324 in one or another of these two positions is obtained by actioning the arm 327 which is mounted pivoting on the rod 326, itself mechanically connected to the rod 316 of the jack 315. The under pressure water feeding of the two waysvalve 325, for the feeding of the two chambers of compression of the jack 315, is obtained through the reversing valve 328, through a closing valve 332 and an adjusting valve 336.

The driving arm 329 of the reversing valve 328 is connected by a spring 330 to a cable 331 which is transversally placed onto the inclined plane 313, so that, when the carrier 310 is raised upon this inclined plane, it pushes away the cable transversally placed and then, through the spring 330, causes the driving lever 329 swinging. When this carrier 310 has caused the lever 329 swinging, the under pressure water circuit is closed on the jack 316 and settled on the jack 314, through the anti-return valve 337 and the drainingvalve 338. In this case, the jack 314 then acts upon the inclined plane 313 so as to take it up, the carrier being on this inclined plane.

On the turret 304 a rod 335 is also mounted pivoting which is pulled out by a spring 340 and which, thereby, applies against the winded portion of the pipe 307. This rod 335 is integral to a system of rods 334 which is besides connected to the adjusting valve 336 and to the closing valve 332 by the rod 333. I

Thus, due to this construction, when the turns of the pipe 307 are not correctly winded parallel on the drum 306, they are overlapping which causes extra thickness which much more incline the rod 335. Thus, when'the winding diameter of the pipe 307, around the drum 306, has reached a thickness not to be over-passed, the

. rod 334 makes free the rod 333 of the closing valve 332, which thereby interrupts the feeding of the chambers of compression of the rotating jack of the drum 315. Consequently, when there is a failure in the winding of the pipe 307 around the drum 306, this drum 306 stops immediately.

This rod 335 also allows to adjust the pulling of the Carrier 310 by the pipe 307. To this end, the rod 335 is .connected through the rod 334 to the regulating valve 336, so that, as the diameter of the turns of the pipe 307 progressively increases, the rod 335 is more and more inclined, which effect is to act upon the valve 336 so as to reduce the output of the water feeding of the jack 315, and therefore to reduce the rewinding speed of the pipe 307 around the drum 306. Consequently, as the pipe is progressively winded, the rotation speed of the drum slows down so as to keep a uniform moving speed to the carrier 310.

On the turret 304 is also fitted pivoting a paddle 342 upon which applies the rear end of the inclined plane 313 when the latter is in the upward position. This paddle 342 is connected by means of a system of rods 343 to a releasing valve 341 which may also be drived by hand by means ofa lever 344. When the inclined plane 313 reaches the upward position, the swinging of the paddle 342 causes the opening of the releasing valve 341, so as to brusquely put into communication with the open air the under pressdre water circuit. This putting to the open air of the water circuit then causes a sudden depression into the pumping station and the latter automatically interrupts the general feeding of the sprinkling apparatus.

It is then noticed that, through this device, as soon as the carrier is placed onto the inclined plane, which is itself in the upward position, the water circuit is interrupted and the feeding pipe may be disconnected so that the apparatus might be carried to another place intended to be sprinkled.

The rod 327 is hinged connected to the rod of the jack 315 which drives through the arm 327 the distributor 324, and is also connected at its end to a lever 345, itself mounted pivoting on an axis 346 transversally arranged at the rear portion of the frame 301, this axis 346 comprising a threaded part 347, on which is placed a bolt 348 integral to a claw 349 through which passes the pipe 306 in course of winding. On the lever 345 a pivoting pawl 350 is also fitted, so that during each displacement of the rod 327 in one way, the lever 345 entails the gearing ratchet 351, and therefore the axis 346, so as to laterally displace the bolt 348, and then the claw 349.

The gearing ratchet 351, as well as the screw 347 are studied in such a way that, for each revolution of the drum 306, the claw 349 is laterally displaced at a distance corresponding to a diameter of the pipe 307.

On the bolt 348 a stop 348 is provided, said stop being intended to apply against one of the

ring

352 or 352, provided on a bar 353 parallel to the screw 347. These

rings

352 or 352, slide along the bar 353 and can act by means of springs, either ,on a lever 354, or on a ring 355, these lever and ring being integral to the transversal bar 353.

For example, when the stop 348, applies against the ring 352, the latter, through a spring, pushes away the lever 354, so that to make a paddle 355 pivoting in 356 to which it is connected by a rod 357. This paddle 355 is provided with

hooks

357 and 358, so that, in the described example, the hook 357, be positioned in the course of the pivoting motion of the paddle 355, on the way of an arm 359, rotatingly integral to the pawl 350.

Consequently, when the stop 348, pushes away the lever 354 with the aid of the ring 352, the paddle 35S pivotes, so that the hook 357 be placed on the way of the bar 359 which is pivotingly entailed at the same time as the lever. 345 by the bar 327. Consequently, when the bar 327 pushes away the lever 345, the bar 359 comes into contact withthe hook 357 so that the latter pivotes on the contrary of the spring 360 and makes, at the same time, the pawl 350 pivoting too. This pawl 350 then comes into contact, by its other end, with the opposed flank of the ratchet gearings 351 so that any new actuating of the bar produces a rotary motion in the opposite way of that of the axis 346 and then of the screw 347. The bolt 348 is then displaced in the opposed direction for winding a fresh layer of turns of the pipe 307 around the drum 306.

Likewise, whenthe bolt 348 reaches the other end of the screw 347, the stop 348, acts upon the ring 352, in order to push away the ring 355 integral to the transversal bar 353. This bar 353 then pulls the lever 354, and then the rod 357, so as to make the paddle 355 pivoting in the other way, so that at that time it is the hook 358 which comes on the way of the bar 359 in order to make this bar pivoting again, and then the pawl 350, in the other direction.

During the swinging of the bar 359 from one of its po sitions to the other, the spring 360 passes from one side of the pivoting axis of the lever 350 to the other, on the lever 345. Thereby, the spring 360 still tends to maintain the lever 359 in the position it occupies.

When, at each change of way of the displacement of the claw 349, the lever 354 and the bar 353 have achieved their action on the paddle 355, the

rings

361 and 361 pushed by springs, bring the bar 3 53 and its lever 354 to a median position on account of which the paddle 355 is nor more on the way of the bar 359.

Of course the invention is not limited to the example of embodiment described and presented hereabove, and from which other forms and modes of embodiment I can be provided without, thereby, departing from the prising a framework, a turret mounted for rotation on a vertical axis on said framework, a drum mounted for rotation on a horizontal axis on said turret. a feeding hose for water under pressure winding around said drum and connected by one of its ends to the movable sprinkling part, means for rotating the drum and rolling up the hose, said hose causing displacement of the movable part, said means comprising a jack, said jack being positioned on the turret;

2. A sprinkling apparatus consisting of two distinct parts, one part being movable for effecting sprinkling, and one part being stationary, a framework for rotation on a horizontal axis and a feeding hose for water under pressure connecting the fixed part to the movable sprinkling part, means for rotating the drum, said hose causing displacement of the movable part, a jack adapted to be actuated during sprinkling, a turret mounted for rotation on a vertical axis on said framework, said jack being actuated by the pressure of the sprinkling water, said jack being positioned on the stationary part and adapted to rotate the drum in a selective manner, said turret providing a support for a guiding stirrup of the hose.

3. The sprinkling apparatus as defined in claim 2, and further including control means for reversing direction of rotation of a member when the stirrup reaches the end of its travel, the means for controlling the reversal of motion of the stirrup guide consists of at least-one abutment, a valve controlled by said abutment, the reversal means including a spindle and gears.

4. The structure as defined' in claim 2 wherein the turret comprises a receiving ramp on the movable part, contact means arranged on the ramp adapted to be actuated by the movable part when the same is placed on the ramp, said last-named means being connected to a water gate arranged in the seating circuit of the water by the jack.

5. The structure as defined in claim 4, wherein the ramp is pivotally mounted about a horizontal axis, a jack provided between the turret and the ramp for selectively lifting the same, said jack being initially actuated by the sprinkling water.

6. The structure as defined in claim 4, wherein a means of contact is provided by a cable placed transversely on the ramp and connected to the water gate.

7. The structure as defined in claim 4,-wherein the ramp permits contact at the end of the course that is operatively connected to the circuit of the sprinkling water.

8. The structure as defined in claim 7, wherein the contact of the end of the course of the ramp is connected to a water gate discharge means that is arranged in the water circuit by its fastening means.

9. The structure as defined in claim 4, and further including a transverse bar pivotally mounted on the turret adjacent the drum, said bar being mechanically connected to a water gate regulator for controlling the supply of water in the circuit that feeds water to the jack for rotating the drum.

10. The structure as defined in claim 9, wherein the transverse bar is mechanically'connected to a water gate stop member that is arranged in the circuit of the water feeding means for rotating the jack of the drum.

is also connected to a pivoting lever that supports a catch of a bobbin, said catch being operatively connected to a pivoting arm that is set in see-saw motion by a finger controlled initially by a screw mechanism.

Claims

1. A sprinkling apparatus consisting of two distinct parts, one part being movable for effecting sprinkling and one part being stationary, the stationary part comprising a framework, a turret mounted for rotation on a vertical axis on said framework, a drum mounted for rotation on a horizontal axis on said turret, a feeding hose for water under pressure winding around said drum and connected by one of its ends to the movable sprinkling part, means for rotating the drum and rolling up the hose, said hose causing displacement of the movable part, said means comprising a jack, said jack being positioned on the turret.

3. The sprinkling apparatus as defined in claim 2, and further including control means for reversing direction of rotation of a member when the stirrup reaches the end of its travel, the means for controlling the reversal of motion of the stirrup guide consists of at least one abutment, a valve controlled by said abutment, the reversal means including a spindle and gears.

4. The structure as defined in claim 2 wherein the turret comprises a receiving ramp on the movable part, contact means arranged on the ramp adapted to be actuated by the movable part when the same is placed on the ramp, said last-named means being connected to a water gate arranged in the seating circuit of the water by the jack.

7. The structure as defined in claim 4, wherein the ramp permits contact at the end of the course that is operatively connected to the circuit of the sprinkling water.

10. The structure as defined in claim 9, wherein the transverse bar is mechanically connected to a water gate stop member that is arranged in the circuit of the water feeding means for rotating the jack of the drum.

11. The structure as defined in claim 10, wherein the shaft that is connected to the piston of the rotating jack is also connected to a pivoting lever thAt supports a catch of a bobbin, said catch being operatively connected to a pivoting arm that is set in see-saw motion by a finger controlled initially by a screw mechanism.