US2047348A - Water sprinkler - Google Patents

Description

July 14, 1936. c. 0. WILSON WATER SPRINKLER Filed Aug. 7, 1955 INVENTOR.

m m AM v m A e m @w Patented July 14, 1936 UNITED defies 2 min ATER SPRINKLER entries 6. wl'o'h, Mji iar; Aiipucatiohiiughsl 'z, 1935, Serial No. 35,144

i ai l iei j ie ifib at v w kle". were scribed in the body of this spec ficatipm lustrated by theaccompanyingdrawing, in Figure 1 is avertical sectionalvi'ewof ti z r t egloi lin d- Q' ffi n Figure 12 is a vertical sect'qnal view'thereof takzon talrot how inllieur al ansl l d I alt-l2 DSC13116 uppers d ihe ei r a i n. and;

olaraiseili csitie he glFie r i-e iniwbi h. t, 0 isstopped1batheconta tnaci e dlsheulde 1.1. washerlB between said shoulders being desirably providedhmu rm. at; @2135 .qizoi ivkfl 'iThe" head i. 2 has ,a horizontallyraxial;circular; chamber .lA..with..angularly-.- spaced Qpenings L5,, 55" leading from the pipe and l6, l1 leading to the N1 5 (snarled-c9)" horizontally extending (or approximatelyhorizontally extending) nozzles l8, l9. A valvular member Z-El'inthe chamber coaxial therewith and freely rotatable about its mounting pivotpin 21 (extending through the removable cover. 220i: 5 the chamberand threaded in its opposite side), is rotated by the flow of water through the pipe and] the chambers inlet opening iii, the axis of said members rotation being laterally ofiset from the' di'rection of said flow as shown. A

This valvular member is desirably triangular, and preferably equilaterally triangular, in transa'iiial section as shown thus forming three any gularly spaced peripheral portions 23 adjacent the culfved'inner-surface ofthe chamber these por- 15' tions 'attheirextremities being formed concentric l with the said axis andspaced inwardly therefrom, as'fshown at 26 to form passages:- between them and said surface but someof-these extremities mayextend into sliding contact with said surface as shown at- 24 in Figure 4. 1 i i .l '1

' In 'theillustrated constructiomsaid nozzlesL=l8,,,5, IS eXtend oppositely from the head theinozzle ill-l havingits discharge 'vent 25 directed through its vertical side 26 so that the head is rotated byiwaw 5' ter pressure in the usual manner. "The other nozzle lB'preferabIy extends somewhat upwardly froni the had soas tothrow the .water farther: therefrom. If, the valvular member 2 3, .be in the; turned position seene'in Figure 1,-. 5011183015: the- 6' water flowingthrough the inlet opening .l5iinto the-chamber androtating this member in the; directionof the arrows willbedischarged through outl t-openingl6 'and nozzle l8, and some of the water ;will pass-theiextremities 24 and; be .discharged through the'outlet opening ll and the nozzle 19. 'W-hen" by; the rotation of the 5 valvular :member one or saide'iitrernities is broughtinto registration;

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with ahy of said openings especially: with-the inlt-oper1ing IS, the flow of .water through the: head will be thus retarded so that theopressure of the water will raise the head to the position shown in'Figure 4-, in which the shoulders ,or rotative bearings II], II are brought into contact thus increasing the friction between the pipe, 1-. e. its shoulderv LIL-and the head, i. e. itsshoulder l l. This increased friction retards the heads rota-- tionwhichresults in throwing the water farther radially from the pipe.- i v 'Whenthe valvular me ber is in the turned p0; sition seen in Figure 1 in which said extremities are not in registration with the openings l5,-. :6, ll jthe, water passing around said extremities is not thus retarded and the head falls to the posi-- 55 tion shown in Figures 1 and 2 thus separating the shoulders or rotative bearings II], II so that the head may rotate more rapidly whereby the water is discharged on a less area about the pipe.

In Figure 5, the nozzles as shown in solid lines are in a position in which the head is being rapidly rotated, the valvular member being at that moment in a position (as that shown in Figure 1) in which the flow through the head is unretarded. As indicated by the direction of the spray issuing from the nozzles, a less circular area is thus sprinkled than when the head and nozzles are being more slowly rotated and are momentarily in the position shown in dotted lines, at which time the valvular member is in a turned position retarding the flow and the spray extends farther from the head thus sprinkling a Wider area.

When the valvular member shown in Figure 4 is in the turned position seen in that view, its extremity 24 acts positively as a valve to momentarily close the inlet opening 15. This creates greater friction between said shoulders than that exerted by the form of said member shown in Figures 1 and 3 and a consequently slower rotation of the head which rotation nevertheless continues by virtue of the heads momentum.

It will be seen that there is a constant fluctuation in the operation of this sprinkler as the valvular members rotation alternately retards the flow and permits unretarded flow of water through the nozzles. A pair of nozzles as shown seems desirable although only a single nozzle may be necessary.

It will be seen that a valvular member triangular in cross section permits a wider passage 21 along its sides than is possible with any member otherwise polygonal in transaxial section, and that such a member thus triangular equilaterally has a more steady and uniform rotation under the pressure of the stream of water than if otherwise triangular; and that such an equilaterally triangular member will turn by gravitation to the position of rest seen in Figure 1 in which a side 28 thereof is directly transverse the direction of the ilow.

It will also be seen that the rotation of the valvular member causes the retarded and nonretarded flow of the water through the nozzle or nozzles in regular sequence.

It is manifest that the shoulders I0, I I need not be actually separated in any case from each other or from the washer l3 therebetween, because although always in contact the friction between them is increased by a slight upward movement of the head and decreased by a downward movement thereof.

The invention being intended to be pointed out in the claims, is not to be limited to or by details of construction of any particular embodiment thereof illustrated by the drawing or hereinbefore described.

I claim:

1. In a water sprinkler: a vertical pipe for water under pressure having a horizontal hearing; a sprinkler head mounted on the pipe for horizontally rotative movement and for limited vertical movement and having a hollow horizontal rotative bearing, a nozzle extending radially and rearwardly for causing the head to rotate by the passage of water therethrough and an axially horizontal circular chamber with angularly spaced openings from the pipe and to the nozzle respectively; a valvular member in the chamber rotatable about an axis concentric with the chambers axis laterally offset from the direction of the flow of water from the pipe into the chamber so that said member is rotated by said flow, said member having angularly spaced peripheral portions adjacent the curved inner surface of the chamber adapted to retard the flow of Water through at least one of said openings in one turned position of said member and to permit comparatively unretarded flow of water through said opening in another turned position of said member, the head being adapted to be raised to a position wherein said bearings frictionally contact each other by water pressure increased by the movement of said member into its first-mentioned position and for the purpose of increasing friction between the pipe and the rotating head thus to retard the rotation of the head.

2. In a water sprinkler: a vertical pipe for water under pressure having a horizontal bearing; a sprinkler head mounted on the pipe for horizontally rotative movement and for limited vertical movement and having a hollow horizontal rotative bearing, a nozzle extending radially and rearwardly for causing the head to rotate by the passage of water therethrough and an axially horizontal circular chamber with angularly spaced openings from the pipe and to the nozzle respectively; a valvular member in the chamber rotatable about an axis concentric with the chambers axis laterally offset from the direction of the flow of water from the pipe into the chamber so that said member is rotated by said flow, said member being triangular in transaxial section but with the extremities of its portions adjacent the curved inner surface of the chamber formed concentric with said axis and adapted to retard the flow of water through at least one of said openings in one turned position of said member and to permit comparatively unretarded flow of Water through said opening in another turned position of said member, the head being adapted to be raised to a position wherein said bearings frictionally contact each other by water pressure increased by the movement of said member into its first-mentioned position and for the purpose of increasing friction between the pipe and the rotating head thus to retard the rotation of the head.

3. In a water sprinkler: a vertical pipe for water under pressure having a horizontal bearing; a sprinkler head mounted on the pipe for horizontally rotative movement and for limited vertical movement and having a hollow horizontal rotative bearing, a nozzle extending radially and rearwardly for causing the head to rotate by the passage of water therethrough and an axially horizontal circular chamber with angularly spaced openings from the pipe and to the nozzle respectively; a valvular member in the chamber rotatable about an axis concentric with the chambers axis laterally offset from the direction of the flow of water from the pipe into the chamber so that said member is rotated by said flow, said member being triangular in transaxial the extremities of its portions adjacent and spaced inwardly from the curved inner surface of the chamber formed concentric with said axis and adapted to retard the flow of water through at least one of said openings in one turned position of said member and to permit comparatively unretarded flow of water through said opening in another turned position of said member, the head being adapted to be raised to a position wherein said bearings frictionally contact each section but with other by water pressure increased by the movement of said member into its first-mentioned position and for the purpose of increasing friction between the pipe and the rotating head thus to retard the rotation of the head.

4. Ina water sprinkler: a vertical pipe for water under pressure having an annular shoulder; a sprinkler head mounted on the pipe for horizontally rotary movement and.for limited vertical movement and having an annular shoulder below the pipes shoulder, a nozzle extending radially and rearwardly for causing the head to rotate by the passage of water therethrough and an axially horizontal circular chamber with angularly spaced openings from the pipe and to the nozzle respectively; a valvular member in the chamber rotatable about an axis concentric with the chambers axis laterally offset from the direction of the flow of water from the pipe into the chamber so that said member is rotated by said flow, said member being equilaterally triangular in transaxial section but with the extremities of its portions adjacent and spaced inwardly from the curved inner surface of the chamber formed concentric with said axis and adapted to retard the flow of water through said openings in one turned position of said member and to permit comparatively unr'etarded flow of water through said openings in another turned position of said member, the head being adapted to be raised to a position wherein said shoulders frictionally contact with each other by water pressure increased by the movement of said member into its first-mentioned position and for the purpose of increasing friction between the relatively rotating shoulders thus to retard the rotation of the head.

5. In a water sprinkler: a vertical pipe for water under pressure having a horizontal bearing; a sprinkler head mounted on the pipe for horizontally rotative movement and for limited vertical movement and having a hollow horizontal rotative bearing, a nozzle extending radially and rearwardly for causing the head to rotate by the passage of water therethrough and an axially horizontal circular chamber with angularly spaced openings from the pipe and to the nozzle respectively; a valvular member in the chamber rotatable about an axis concentric with the chambers axis laterally offset from the direction of the flow of water from the pipe into the chamber so that said member is rotated by said flow, said member being triangular in transaxial section but with the extremities of its portions adjacent the curved inner surface of the chamber formed concentric with said axis, one of said extremities being in sliding contact with said surface and another of said extremities being spaced therefrom and adapted to retard the flow of water through at least one of said openings in one turned position of said member and to permit comparatively unretarded flow of water through said opening in another turned position of said member, the head being adapted to be raised to a position wherein said bearings frictionally contact each other by water pressure increased by the movement of said member into its first-mentioned position and for the purpose of increasing friction between the pipe and the rotating head thus to retard the rotation of the head.

CHARLES 0. WILSON.

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