US2942789A - Sprinkler - Google Patents

Description

Filed larch 26, 1958 June 28, 1960 L. B. SMITH SPRINKLER 3 Sheets-Sheet l 2 3 24 5' I739 I b A IIMIIIIIIIIIII 'IIIIII INVENTOR.

Lloyd B Smith %,M #W

Httornevs June 28, 1960 L. B. SMITH 2,942,789

SPRINKLER Filed March 26, 1958 3 Sheets-Sheet 2 Q o v N 8 &

3 a: Q 9' m o a w 2 I I INVENT OR. UgydB. Smith I72 tag nay S June 28, 1960 B. SMITH 2,942,789

SPRINKLER Filed March 26, 1958 3 Sheets-Sheet 3 INVENTOR.

L/0yd B. Smith United States 'I rlis-in'v'entioii-relates to a sprinkler arid mbr'epar'tig larly'to a wav'e type-sprinkler adapted 'for' sprinkling lawns andtli'e like? p u 7 An object of my' invention isto' providea sprinkler ot the character designated in which the'w'ate'r is distributed evenlyover theentire sprinkler pattern, whereby there is no' excess'of-wa'ter adjacent theouter edge or the pattern. p t s Another object-of my invention is' to provide a sprinkl'r" of'th'e" character designated which shall embody'a vfaite'r" motor having a vane-mounted for pivotal n'iove ment and a sprinkler c oii'duit connected non rota'tably to the va'ne, m eaier with pressure release means for by: passing watertothspriiikler conduit, whereby the by passed water does nofact'upon the vane fiJrther in creasethe speedof; oscillation" smegma; providing awt'ater niotorwhicli oscillates ata predetermined speed.

A furthe'r object of 'my invention" is to prot' ide' a wa'ye type water sprinkler'of thech'araqter designated which the" angular pivotal movement ofthe" sprinkler is adjust able whereby-the sprinklerpattern may be'varied,

A still further object of my'invention-is 'to' provide a sprinkler of the character designated which shall be simple of construction, economical of manufactureand one which is trouble'free in" operation and requires a minininm of maintenance.

Heretofore' in theart to which my invention-relates; various types of wave type sprinklers have been proposed. However, such sprinkle'rs with which I am far'riilar are unsatisfactory due to the fact that the Water motor is actuated by Water which does not pass through the sprinkler conduit. Thatis, the Water which actuates the water motor is discharged from thewater motor without enter ing the sprinkling conduit. Also, wave type sprinklers heretofore employed} have required a complicated as sembly of parts which requires considerable maintenance to maintain the same in trouble free operation. Furthermore, no effectiye means has been provided to regulate'thespeed at which the sprinkler conduit oscillates.

Briefly; my'impr'oved' sprinkler comprises a water meter havinga vane/mounted for pivotal movement in a casing and including a'waterinlet and a Water outlet. A sprinkler conduit is connected to th e vane of the motor and the'water outlet thereof and is'adapted 'to'oscillate therewith. V To regulate the speed at which the vane and the sprinkler conduit oscillate, I provide pressure release means'to bypass water to the sprinkler conduit when'the water pressure-exceeds a predetermined amount;

Sprinklers embodying features of my invention are illustrated in the accompanying-drawings, forming a part of this application, inwhichf Fig. 1 is avertical-sectiorial View, showing one fdriifoi the s rinkler; V

Fig. 2 is an enlarged view takengeri'ei'ally 'along'the line z 2- of Fig: 1, thehbu sing 'and'wall best/aside two casings being omitted'for the sake of clarity;

partlybroken away,

atent "'ice Patented June 28, 1950 2 Fig; 3' is? an enlarged view taken generally along the mspser Figal; V

Fig; 4 is an exploded" View showing the vane" and the mechanism for introducing water into the water motor cas'iiig adjac'nt opposite sides of the'va'ne; V Fig: 5 is an enlarged flagmental view, partly broken away and in section," showing the pressure release means associated With'the' apparatus shown in Figs. 1-4; V Fig. 6 is a perspective View showing the valve of the pres'siire'release mass shown in'Fi'g. 5 M H Fig. 7 is a vie'w' taken generally along the line 7-7 ofFi'g. 8' and showinga modified form o f sprinkler;

Fig. 8 is asectional view taken generally along the iiaes ssrri fl; V q p p Fig. 9i's a perspective view showingi the yalve plate member for regulating" the fiow ofwatez to the water ra'owr' and the pressure release'nieans for the sprinkler showniii Figs. 7 andB}; I 7 V m, M Fig. 10 is a side elevational view, partly broken away and insec'ti nQshoWing another form of sprinkleri r Fig. ll enlarged fragmental view taken generally along'theline11 1'1'ofFig.'10;" v up Fig. 12isl a'perspectiv'e view showing the' 'wat'er motor vane forthe sprinkler shown in Figs." 10 and 11'; p v Fig? 1-3 isa side elev'ationaliviewg partly broken'away and section,"showing' a' further modified form of my in rtia; l. s, .l M

Fig 14 is air enlarged sectional view tak'e'fi' generally alongtheline'flldoffigl 13; Fig. 15 sa side elevationalfviewi lay and secii0n," slio\ ving a still" further modified fdl'ifi' (if my r na Eigi 16fi s a sectipn'al viewtak eif generally alongthe 35. f -Y 5 Referring now to 'tlie'"drawings for a better understand. ing otj'zn'y invention, aasmore aaamaay 'to Figs. 1;-6, I show a housing 10' for the" sprinkler which may be mounted o'r'i a suitable stand, not s howu The hbusing IO is divided by a wall 11' toproyidea water motor casing 12 and a" second casing, 1310i supplying water to the by'aisuitable hosec'oiinecition l i. I w v Eatendingthrough' the" 'aterYrnotcr casing lgl and adaptedjor pivotal movement'relative s the r-ear wall of the housing lllaiid' the li 'is a tubularimember 16 having elongated openings 17 w and 1-8 att opposite sides'jthere'oi as shov'rii in Figs; 1 and Telescoping Wanama-mbna mentbaiisis a sprinkler cendu it 19 having'el'orig'ated openings}! and 22 therein wl1ich'1are inregister withithe openings lj and 13in the tubular m'ern'beill Thetubular member 16 and theconduit' 19 are secured non-rotatably to tab]; other by suitable neans, such as by'a pin 23.' While lshow the conduit 19 asbeing separate from the tu'oular member lti, it will'be ap parent thatth members and 19 could-be formed as an integral member; The conduitlfi extends outwardly of the housirig'lfl; and isfprovided with a plurality of, sprinklingorificesz i therein for discharging-water as the conaunts oscillated; Secured to the tubular member 16 and adapted for pivotalmove nent: therewith isa water motor vane Zfil wlnch slidably engages the :inner surface water motor casing; Water is; supplied to' the casing 13 of the casing. 12, shown in Fig, 1.1 Preferablyflhe e-;

riph'ery of the vane id is' 'tape'red to provide a relatively thin outer contactsu'rfaee 27 which wipes against the" innersurfacef ofthewater'niotor casing -12 to form an efiective sealtherewithr,

Telescoping within the-conduit 19 atubular member disposed. to engage the partition 29, as shown in Fig. 5,

34 which is interposed between a spring abutment 36 carried by the valve member 32 and the adjacent side of the partition 29. It will thus be seen that as the pressure within the tubular member 28 increases to a point that it overcomes the force exerted by the spring 34, the disc-like member 33 is moved outwardly from the partition member 29 to allow water to flow through the opening 31.

Oppositely disposed openings 37 and 38 are provided in the tubular member 28 at opposite sides of the partition 29 whereby they are in alignment with the elongated openings 21 and 22 in the conduit 19. It will thus be seen that with the tubular member 28 in the position shown in Fig. 3, the water entering the tubular member passes through the openings 38, 22 and 18 into the casing 12 adjacent one side of the vane 26. .Any water on the opposite side of the vane 26 then flows into the tubular member 28-through the openings 17, 21 and 37 at the opposite side of the partition 29 whereby the water is discharged through the conduit 19 and sprinkler orifices 24. The tubular member 28 is also provided with oppositely disposed openings 39 and 41 which are positioned at opposite sides of the partition 29. As shown in Fig. 3, the openings 39 and 41 are spaced angularly from'the openings 37 and 38 whereby upon rotation of the tubular member 28 in a counter-clockwise direction from the position shown in Fig. 3, the openings 39' and 41 move in 'to'register with the openings 21 and 22 in the conduit 19. In this latter position, the water entering the inlet end of the tubular'member 28 passes through the openings 39, 21 and 17 into'the adjacent side of thecasing 12.

alternately with the openings 37 and 39 and 38 and 41,

respectively, whereby the water is introduced alternately at opposite sides of vane 26. In view of the fact that the openings 37 and 41 move in to register with the openings 17"2 1 a.nd.1822 as the vane 26 is oscillated, the water 'is exhausted alternately through the openings 37 and 41 into the tubular member 28 and the conduit 19 where his conveyed to the sprinkling orifices 24. Mounted adjacent each side of the tubular member 16 within the casing 13 are outwardly extendingmembers 42 and 43. Telescoping over the inlet end of the member 7 16 is a collar 44 having an outwardly projecting arm 46 which is in position to be engaged by the-projections 42 and 43 as the vane 26 oscillates the tubular member 16;

Secured to the outerend of, the tubular member 28 and adapted for pivotal movement therewith is an'outwardly projecting arm 47. Pivotal movement of the arm 47 is limited by adjustable stop members 48 and '49 which are carried by an actuating member 51. Connecting the outer ends of the arms 46 and 47 is a spring member 52 which urgesv the arms 46 and 47 in opposite directions when the pivotal connection between the arm 46 and the spring 52 passes dead-center of a line extending radially projection 43 engages the arm 46 and moves the same" toward the left or in a clockwise direction. As the pivotal nection between the arm 47 and the spring 52, the spring 52 causes the arm 47 to move quickly toward the right and into engagement with the stop member 49. In the latter position, the 'water is introduced into the casing 12 through the opening 39 and discharged therefrom through the opening 41.

The actuating member 51 is provided with a control knob 53. Interposed between the control knob 53 and the housing 10, as shown in Fig. 1, is a compression spring 54 which urges the knob 53 outwardly of thehousing 10. As shown in Fig. 4, the actuating member 51 carries a series of notches 56 which are in position to engage a stop member 57 to hold the actuating member 51 in selected position. To operate the actuating member 51, the knob 53 is pushed inwardly against the compression of spring 54 whereupon the notches move out of engagement with the stop 57 to permit free rotation of the actuating member 51. Upon moving the actuating member to the desired position, the'knob53 is released to return the actuating member in the desired locked position. With the actuating member 51 extending in a horizontal plane; as shown in Figs. 1 and 4, the sprinkling conduit 19 oscillates equal distances at each side ot a vertical plane passing through the center of the conduit 19. Preferably, in this position, the conduit oscillates 45 at each side of the vertical plane passing through the axial'icenter line of the conduit19. To cause the conduit 19 to rotate a further angular distance toward either side, the control'knob 53' is actuated to move the stops 48 and 49 in the proper direction. That is, if it is desired to oscillate the conduit 19 further toward the counter-clockwise direction, the control, knob is pushed inwardly and turned in a counter-clockwise direction to reset the actuating member 51. On the otherhand, if it is desired to oscillate the conduit 19 further in a clock- I wise direction, the control knob 53 is pushed inwardly and rotated in" a clockwise direction to reset the actuating member 51. The stops 48 and 49 are thus positioned at selected angular positions whereby the angular movement of the sprinkling conduit 19 may be varied.

I From the foregoing description, the operation of my improved sprinkler shown in Figs. 1-6 will be readily understood; The hose connection 1'4 is connected to a water supply hose and the knob 53 is set at the desired position to determine the angle of oscillation of the sprinkling conduit 19. With the tubular member 28 in the position shown in Fig. 3, wateris'introduced through the connection 14 into-the casing 13 and thence through the inlet of the tubular member 28. The water then passes through the openings 38, 22 and 18 into the casing 12 adjacentthe right side, of the vane 26, as viewed in Fig.3, The water at the other sideof the vane 26 is then exhausted. through the openings v17, 21" and 37 into 'jection1'43 engages the arm '46"and,frotates.the same in a a clockwise direction. As the pivotal connection between the arm 46 and the spring 52 passes dead-center ofaline extending radially from the axial Icenter of'the tubular member '28 through the connection of the arm 47 to the spring, 52, the spring 52 -urges the arm 47 quickly in a counterclockwise direction 'to-position the openings 39 connection between the arm 46 and the spring52 passes dead-center of a line extending radially from the axial center ofthe tubular member 28 and the pivotal conand 41 in register with the openings 17 -21 and 18--22, respectively. In the latter position, the water enters the inlet end'of the tubular member 28- and passes through the opening 39 into the casing 12adjacent the left-hand side of the vane 26, as viewed in Fig. 3, thus causing the vane 26 to be oscillated in a' counter-clockwise direction. Water at the oppositeside of'theva'ne 26 is then exhausted through the openings 18,- 22 and 41 to the tubular member 28 and thence outwardly through the conduit 19 to the sprinkler orifices 24. i

If it is desired tovary the angular pattern made by the sprinkler conduit 19, the knob 53 is compressed inward meshes 3 and moved. in the desired direction and thenre'l'eased to setthe stops 48 and'49 in the correct angular positions relative to the arm 47.

Should the pressure of the water'in the tubular member exceed a predetermined amount, which is"determinedby the spring 34, the'valve'32 is unseated wh'ereby water bypasses-through the opening 31"and' thence to the sprin kler conduit 19. By providing the pressure relief valve 32, the vane 26 oscillates'at'acontrolled speed;

Referring now to Figs: 7; 8* and9 of-thvdrawings', I show anotherform'of my invention'which comprises a housing 19a separated 'by a vertical 'wall 11a 'intoa water motor casing'12a and actisinglSiz: Water"is'supplied to the casing 13a by a suitabl"hose"connection?14h. Extendinggthrough the casing"12i1' isa sprinkler conduit 19ahaving aplurality of" sprinkler orifices 2421 therein; The sprinkler conduit 19a is'secured "to a suitable bearing sleeve member'58, as shown in Fig. 8. Secured "to the sprinkler-conduit 19a andadapted forpivotal movement therewith is a water motor vane 26a:

The wall l lais provided with openings 59 and 61 at opposite sides of the vane 26a, as shown in Fig. 7. The casing 13a is covered by a suitable outer wall or cover plate 62, as shown. Also, the casing 13a is of'a shape shown in Fig. 7 and is provided with an opening 63 which encircles the sprinkler conduit 19a and the openings 59 and 61, as shown. The opening 63 is provided with a lower portion in position to communicate with the hose connection 14a whereby water is introduced into the casing13a.

Mounted for pivotal movement between the walls 62 and lla of the casing ran on a suitable pivot pin 64 is a valve plate member 66. As shown in Fig. 7, the'casing 13a is 'provided'with inwardly extending projections 67 and 68-adjacent opposite sides of the'valve plate member 66 adjacent the opening 59. In like manner, the casing 13ir'is provided with inwardly extending'projections 69 and-'71 at opposite sides of the valve plate member 66 adjacent the opening 61. With the valve plate 66 in the position shown in solid lines in Fig. 7, opposite ends thereof engage the projections 67 and 71 whereby water enteringthe opening 63 passes through the opening 59 intothe adjacent side of th'e'casing 12a; As the water forces'th'e vane 26a in a counter-clockwise direction, as viewed in Fig.- 7, the water 'at the opposite side of the vane 26a flows out through the opening 61-into'the cas ing'--13a above the valve plate'66 and thence'through the sprinkler conduit 19a to the sprinkling orifices 24a. On the other hand, when the valve plate member 66 is moved to-ithe dotted line position, the water entering the casing 136 through the hose connection 14a enters the opening 61," thus forcing the valve plate 26a in a clockwise direction, as viewed in Fig. 7. Any water at the opposite side of the vane 26a is then exhausted through the opening 59' above the plate 66 to the sprinkler conduit 19a and then to the sprinkling orifices 24a.

The valve plate 66 is actuated by-means now to be described. Secured to the valve plate 66 and projecting upwardly therefrom are a pair of arms 65 which are pivotally' connected at their upper ends'to parallel link members 68. The upper ends of the link members 68 are connected by a pin 75; Lateral movement of the links 68 is limited by a pair of stops 70 and 72 mounted on Wall 11a at opposite sides of the Connecting the pins 75 and 64 is a-spring 73.51, as-shownin-Figt 8.

Frictionally connected to theinlet end of the sprinkler conduit 19a within the casing 13a is an annular member 73which has a cut-out portion 74 therein for receiving the upper end of the link- 68 and the pin 75. Mounted on thesprinkler conduit 19a adjacent the annular mem ber 73 .is a second annular member 76 which has a cut-out portion177t ln view of the fact that the annular member 73 is frictionally connected to the conduit 19a, it may be trotatedrelative to the annular member 76, thereby 6 varyingthe size o f the gap for 'receivingthe"pin" 75 and theupper ends of the-link'sfis. 7

From the foregoing description, the operation of my sprinkler shown in Figs. 7, 8 and 9 will be readilyunder stood. Water is introduced through the hose connection 14a whereit'passes'intoth'e casing-13 and through the opening 59 beneath the valve plate"6'6 into the casing 12a; Asthe water passes'into the'ca's'ing 12a adjacent the opening '59-; the vane 26a is pivoted a' counterclockwise direction; asviewed' in Fig; 7. Counter-clockwise movement of theVaneZG'acaUss corresponding movement of the'sprinkler 'conduit19d" and the annular members" 73 and 76' until'thepin"75 engages the 'member 76. Upon engagement of the pin 75 by the member 76, thelinks 68 arem'ovedab'out their pivotal connection to the arms 65 until this pivotal connection moves past dead-center of alin'e "extending through the pins 64 and 75. The'valve plate member 66 is then moved quickly, by the spring 73a, to 'the'dotted linep'osition shown in Fig. 7. In the dottedlin'e position, the water entering the hose connection'14d'pass'e's throughthe opening 61 into the adjacent'side of'thefcasing 12a Any water at the opposite side of casing 12a is exhausted through the opening 59 to the conduit 19a and thence to' the sprinkling orifices 24a.

To vary the angular movement of the sprinkling conduit 19a, the annular'member 73 is rotated relative to the annularmember'"76,' whereby the gap between the members 73 and76' can'be varied. That is, by moving the member 73 in a"counter ciockwise"direction, the'gap for receiving. the pin 75 'is increased whereas rotation of the member 73"in aclockwise direction decreases the gap, thus reducing the distance that the' sprinklin'gconduit 1% moves. I

Theva'lv'e plate member 66als6 servesas aprssure release valve to bypass water from the casing 13a to'the conduit 19a when an eXc'ess pressure exists" within the casing 13a. That is; when there is an excess'water presure within the casing 13a, the valve plate"66 will be forced away from the points'68 and 71, as the'case may be, whereby'a'port'ion of the fiuid'passe's' directly to the sprinkler'conduit 19a. .The tension spring '73:; serves as a means to actuate the'valve plate member 66 instantaneously whereby there'is' no retarded movement of the sprinkler conduit 19aat"each"end' of its travel, thus assuring p'roper'distribution 'of the water.

Referring now to'Figs; l0 and ll of the drawingsil show another modification of my sprinkler. The sprinler comprises a housing 10b'se'parated by'a partition wall llb into a water motor casing 12b and a casing 13b for receiving water from a hose connection 14b; Extend ing through the water motor casing 121: isa sprinkler conduit 19!) having a'plurality" of sprinkler orificesldb therein for dispensingfwat'er. Secured to'and mounted for pivotal movement with the sprinkler conduit 1% is a'w'ater motor vane26b. Water is introduced into the casing 12b through a'pairof angularly spaced open ings 78 and 79. As shown in Fig. 11, the openings 78 and 79 are positioned at opposite sides of the water motor vane 26b. Communicating with and adapted for pivotal movement relative to'the'inletend'of the sprinkler conduit 19b is one end of an L-shaped conduit 81. The other end of the conduit 81 is adapted to'be moved selectively into engagement with the openings 73 and 79 whereby water is exhausted through theconduit 81 to 'a' sprinkler conduit 19!).

Mounted for'pivotal movement adjacnt the inlet end of the sprinler conduit 1% within the casing 13b is one end of an outwardly extendingarm 82. The other end of the arm 82 extends inwardly as at83 toward the partition wall 111), as shown in Fig. 10. Pivotallyconnec'ted adjacent the outer' end of the conduit 81 is one end'of "a spring member 84. The other end of spring 84iscon nected to the outer end'of"'arm"82. The spring'="8s"'is thus adapted to urge thearni "82 and conduit 81 inop into register with the opening 79.

7 posite directions when the pivotal connection between the spring 84 and the arm 82 passes dead-center of a line .extending radially through the axial center of the conduit 19b'an'd the pivotal connection between the spring 84 and the conduit 81. Suitable stop members 86 and 87 are provided at opposite sides of the arm 82 to limit angular movement thereof. Also, stop members 85 and 85a are provided at opposite sides of the conduit 81 to limit rotation thereof. Secured to the sprinkler conduit19b adjacent the arm 82 is an actuating member 88 having a recess 89 therein defining shoulders 91 and 92 which are disposed to engage the inwardly extending portion 83 of the arm 82 upon rotation of the sprinkler conduit 19b.

Communicating with'the inlet to the casing 13b adjacent the hose connection 14a is one end of a conduit 93. The other end of the conduit 93 is connected to a pressure relief valve 94 which may be in the form of a valve member 96 which is urged toward seated position by means of a spring 97. Communicating with the valve 94 is one end of a flexible conduit 98. The other end of the flexabie conduit 98 is in communication with the sprinkler conduit 19b whereby the sprinkler conduit is the L-shaped conduit 81 to the inlet end of the sprinkler conduit 19b whereupon the water passesrout through the 1 spray orifices 24b. As the 'waterenters the opening 79,

the sprinkler conduit 1% rotates in a counterclockwise directionjand carries with it the actuating member 88. The shoulder 92 thus engages the inwardly extending portion 83 of the arm 82 and rotates the same in a counter-clockwise direction until the, pivotal connection of the arm 82 and the spring 84 passes dead-center of of a line extending radially from the axial center of the conduit 1915 through the pivotal connection of the spring 84 to the L-shaped conduit 81. The conduit 81 is then moved quickly toward the left, as viewedv in Fig. 11, In this'latter position, water is introduced into the casing 1211 through the opening 78 and'water at the opposite side of the vane 26 is exhausted through opening 79 and'L-shaped conduit 81 to the sprinkler conduit 1% and the sprinkler orifices 24b. It will thus be'seen that as the water is introduced Referring now to Figs. 15 and 16, I show a still further modified form of my invention which comprises a hous- =ing 10d separated by a partition wall 11d into a water motor casing 12d and a second casing 13d. Water is introduced into the casing 13d by a suitable hose connection 14d. Mounted in the casing 1 2d for pivotal movement with a sprinkler conduit 19d is a water motor vane Water is introduced alternately at opposite sides of the vane 26dthrough openings 104 and 106. Communicating with and adapted for pivotal movement relative to the inletend of the sprinkler conduit 19d is one end of an L-shaped conduit 107. The other end of the L-shaped conduit 107 is adapted to register alternately with the openings 104 and 106 for exhausting water from the easing 12d at opposite sides of the vane 26d. Secured to the sprinkler conduit 19d adjacent the L-shaped conduit 107 is one end of an outwardly extending arm 108. Mounted for pivotal movement on the sprinkler conduit 19d adjacent the arm 108 is an actuating member 109 having a recess portion 111 defining shoulders 113 and 114 which are in position to engage an inwardly extending pin 116 carried by the L shaped conduit 107, as shown in Fig. 15. Extending outwardly of theactuating member 109 are stop members 117 and 118 which are adapted to be engaged by opposite sides of the arm 108 as the arm is rotated in opposite directions; The lower end of the actuating member 109 has a cam surface 119 which is engagedby a cam follower 121. The cam fol-. lower is urged into engagement with'the cam surface 119 by awcom pression spring 122. suitable stops 120 and 120d areprovided at'opposite sides of the L -shaped conduit 107 to limit rotation thereof.

' Inoperation, water is introduced into the casing 13d through the; hose connection 14d where it flows into the exposed opening 104 or 106, as the case may be. With the apparatus in the position shown in Fig. '16, water is introduced through the opening 104whereby the vane 26d is rotated in a counter-clockwise direction. As the alternately at opposite sides of the vane 26b, the vane and the sprinkler conduit 19b carried thereby is oscillated.

In Figs. 13 and 14, I show another form of my invention in which the pressure relief means is mounted in the vane 26;: of a water motor. The exhaust of the water motor is operatively connected to a sprinkler conduit 19c whereby the sprinkler conduit is oscillatedin the manner described above. The water motor is housed within a suitable housing 100 which is divided into'a water motor casing 120 and a second casing 13:: by a partition wall 11c. Water' is introduced into the casing 13!: by a suit- V arrows and 103, respectively.

vane rotates in a counter-clockwise direction, the arm 108 engages'pin 118 and rotates the actuating member 109- until the apex of the cam surface 119 passes the cam follower 121. The shoulder 114 of the actuating member 109 then engages the pin 116 carried by the L- shaped conduit 107 whereupon the conduit 107 is moved quickly into engagement with the opening 104. .The vane 26d is then moved in a clockwise direction until the arm 108 engages the pin 117 and moves the actuating member 109 whereby the cam follower 121 passes the apex of the cam surface 119-whereupon the shoulder 11'3 engages the pin 116 and returns the L-shaped conduit 107 into register with the opening 106. As Water i s'introduced selectively into the openings 104 and 106 it is exhausted 'at the'other side of the vane 26d through openings 106 and 104, respectively; That is, the water at the exhaust sprinkler conduit with the exhaust side of the water motor, in combination'with pressure relief means for bypassing water into the sprinkler conduit when an excess water pressure is reached, the apparatus operates continuously at a controlled rate. Also, by providing means for adjusting the angular travel of the sprinkler conduit, the sprinkler pattern may be easily and quickly varied. Furthermore, my improved sprinkler apparatuscomprises a minimum of parts and a of maintenance to keepthe same in efficient operating condition. a a T While I have shown my invention in several forms, it

9 will be obvious to those skilled in the art th'at it is not so-li'mited, but issusceptible-of various changes and-modi fi'cations'without departing from the'spirit thereof, and I desire, therefore, that only such limitations shall be placed thereupon as are specifically setforth inthe ap-' pended claims.

What I claim is:

1; A- sprinklericomprising a-water motor-hav'ing'a vane mounted for pivotal movement in acasing and including a -water inlet and a water outlet, a conduit operatively conneeted'to'said-vane' to oscillate therewith and having a water inlet in communication withthe outlet of said Water'motor; there 'being at-least onesprinkling opening' in said conduit, and pressure relief means disposed tob'y-pass 'water to said conduit when the Water'pr'es'sure exceeds a predetermined amount, whereby the water motor oscillates at 'a predetermined speed.

2. A sprinkler as'defined'in claiml in which thepres surerelief meanscomprises a pressure relief valve interposedbetween and in" communication 'with' the-inletfor theiwater motor and'said conduit;

31, A sprinkler as defined in claim l-irr-which'the-pressure relief 'means comprises 'pressurerelief valves in-the vanesofithe -wa'ter motor.

4. A sprinkler as-defiiiedin claim lin whichthe pres-- sure=relief means comprises a second casing in commune catiomwith the casing forthe water motor=and=said con= duit', and a-pressure-relief valve in said second casingto by-pass the water to said conduit when the'water pressure exceeds a' predetermined amount.

5. -A"=sp1inkle'r compr'ising a water motor-"having avane' mounted for pivotal movement ina" casing andincluding a' waten inletanda water=out1et, a" conduit connected to said vane to oscillate-therewith" and 'havin'ga water inlet in communicationwith the-outlet of i said water -motor; there being'ia -plurality of sprinkling" openings in said conduit, and pressure relief means disposed to' bypass waterto said conduit when the -water pressure exceeds 'a' predetermined amount; wherebythe waterimotor oscillatesat apredetermined speed;

6; 'A-spz'inkler comprising a water motor-casing having a vane mounted for pivotal movement therein, a conduit extendingthrough i said casing and adapted for pivotal movement relative thereto, means connecting'said conduit to saidvane WHereby saidvane moves'with' said conduit, there being-at least one sprinkling opening in said con duitoutwardly of said casing, means' introducing water into said casiug ternately at opposite sides of said vane whereby said vane is oseillated; means" communicating said conduit w'ith' said casing alternately at the opposite side of said vane fromthe side that water isintroduced whereby water-is exhausted through said conduit, and

pressure relief means disposed to by-passwater'to 'said conduit when the water pressure exceeds a predetermined amount, whereby'said"vane oscillates at a predetermined speeds 7. A sprinkler comprising a water motor casing, a conduit extending throughsaid" casing and adaptedfor pivotal movement relative thereto, awater motor vane connected to said conduit within said casing and adapted for pivotal movement therewith, there being at least one sprinkling orifice in said conduit outwardly of said casing, there being openings in said conduit communicating with said casing at opposite sides of said vane, a tubular member telescoping within said conduit and having a water inlet at one end thereof and a water outlet at the other end thereof in communication with the end of said conduit carrying said sprinkling orifice, a transverse partition in said tubular member, a first pair of openings in said tubular member at opposite sides of said tubular member and at opposite sides of said partition from each other and adapted to be moved into alignment with the openings in said conduit upon relative rotation of said conduit and said tubular member in one direction whereby water entering said water inlet passes throughthe adjacent one of said first pair-=ofopenings intosaid casing-adjacent 'afi'rst sideof 'saidvane and'any water at the other side of said' vane passes through the other'one of said first pair of openings into said "conduit to'saidsprinkling-orifioe, a second pair of 'openingsin said tubular member spaced angularly from said first-pair of openings} and at oppositesides of said tubular member and at-opposite sides of said partition from each other and adapte'd to *be moved into alignment with the open ings' in' said conduit uponrelative rotation of said conduit and said tubular member in the other; direction whereby water entering saidwater-inlet passes through th'e'adjacent one of-said'se'eond-pairof openings into said casing" adjacent said other side'of said vane'and any water at'said first'si'de of said vane-passes through the other' one of said second-pair of openings into said-con duit 'to' said sprinkling orifice, means introducing water into said water inlet, and pressure relief means'disposed to-by-p'ass water tosaid conduit when the-water pressure exceeds-a predetermined amount.

A sprinkler as defined-in claim "7 "in which-the pres= sure relie'f means comprises apressure'relief valvein" the 'transverse partition:

9. A sprinkl'enas-"defined inclaim 7 in whichthe meansdntroducing water into the water inlet comprises a'secondcasingin communication with said water inleti 10. A sprinkleras defined in claim- -7 in Which-quick action'means is' provided-for rotating said tubular mani her relativetosaid conduitwhen saidconduit approaches the .extreme limits of it s 'travel in opposite directionsa 11. A sprinklerasdefined" in claim 10 in which the quick action means comprises afirst-member s'e'cur'edito thetubular memberand extending outwardly thereof; a second 'member mounted for pivotal movement 1 on" said tubular member and 'extendingoutwardly thereof, actuating means carriedby said conduit and disposedt'omove said second member-inresponse to pivotal'movement of said conduit, means limiting pivotal movement of said conduit; and"spring-means-connected at opposite ends to saidfi'rst and second-members and 'urging saidfi'rst" and second members-in opposite directionsupon the-connection1of said spring means'to said second memberpass ingdead-center of a radially extending; line passing" through theaxial' center of said tubula'r'member and the connection ofsaid spring means to said first member; I

12. A' sprinkler as defined in claim llin which the means limiting pivotal movement of said conduit com: prises adjustablestop' means 'at opposite sides of said first memberwvherebydhe angular pivotal movement "of' said conduit may be varied.

13. A sprinkler comprising a water motor casing; a

conduit having an inletat'one end and'an outlet atthe otherend'thereof extending-through said casing and adapted for pivotalmovement relativethereto, a'water motor vane connected" to said conduit within said casing and adapted for pivotal movement therewith,-the re 'beingat 'leastone sprinkling'orifice'in the outlet ofsaid conduit outwardly. of said casing," a second casing in communia= tionwith the inlet'fofsaidconduit, there being pass ag e ways communicatingsaid second casing" with 'saidwater motor casing at opposite sides of said vane, valve means in said second casing introducing water through said passageways into said water motor casing alternately at opposite sides of said vane and exhausting water from the water motor casing to said conduit through said passageways which are opposite the ones thereof introducing water, and pressure relief means in said second casing adapted to by-pass water to said conduit when the water pressure exceeds a predetermined amount.

14. A sprinkler comprising a water motor casing, a conduit having an inlet at one end and an outlet at the other end thereof extending through said casing and adapted for pivotal movement relative thereto, a water motor vane connected to said conduit within said casing and adapted for pivotal movement therewith, there being 1 1 at least one sprinkling orifice in the outlet of said conduit outwa'rdlyof said casing, 'a second casing in communication with the inlet of said conduit,- there being an inlet passageway in said second casing and other passageways communicating said second casing with said water motor casing at opposite sides of said vane, a valve plate mounted for pivotal movement in said second casing communicating said inlet passageway with said other passageways to said water motor casing alternately at opposite sides of said vane and communicating said conduit alternately with said other passageways which are opposite the ones thereof in communication with said inlet passageway, quick action means actuating said valve plate upon said conduit approaching the extreme limits of its travel iniopposite directions, and pressure relief means disposed to by-pass water from said second casing to said conduit when the water pressure exceeds a predetermined amount.

l 5 A sprinkler as defined in claim 14 in which the second casing is provided with inwardly extending portions atopposite sides of the valve plate adjacent each end of said valve plate'in position to be engaged by said valve plate to define a control and pressure relief valve between said second casing and said valve plate. 7

16. A sprinkler as defined in claim 14 in which the means actuating said valve :plate comprises an arm member secured at one end to said valve plate adjacent the pivot point thereof with the other end thereof extending outwardly toward, the conduit, a link pivotally connected at one end to said other end of said arm member, means limiting lateral movement of the other end of said link, spring means, connecting said other end of the link to said valve plate adjacent the pivot point thereofi and meanscarried by the conduit disposed to engage said other endof the link upon pivotal movement of said conduit whereby said other end ofthe link passes dead water motor casing at opposite sides ofsaid'vane, means introducing water into said second casing, means carried by said conduit communicating said conduit alternately with said passageways at oppositesides of said vane whereby water is exhausted through said conduit to said sprinkling orifice and pressure relief means disposed to by-pass water to said conduit when the water pressure exceeds a predetermined amount, whereby said vane oscillates at a predetermined speed. 7

19. A sprinkler as defined in claim 18 in which the means communicating the conduit alternately with the passageways at opposite sides of the vane comprises a second conduit connected at oneend to the inlet of the first mentioned conduit and adapted for pivotal move: ment relative thereto with the other end of said second conduit adapted to communicate selectively with said passageways at opposite sides of the vane, an arm mounted for pivotal movement relative to said first mentioned conduit, means limiting angular movement of said arm, an actuating member mounted non-rotatably on said first mentioned conduit and disposed to engage said arm upon spring means to said arm passing dead-center of a radially extending line passing through the axial center of said first mentioned conduit and the connection of said spring means to said second conduit. 7

20. A sprinkler as defined in claim 18 in which the means communicating the conduit alternately with the center of a line passing through said pivot'point of the valveplate and the pivotal connection of said link to said arm member when said conduit approaches the extreme limits of its travel in opposite directions. a

1']. A sprinkler as defined in claim 16 in which the meanscarried by the conduit comprises a stop member carried by said conduit and disposed to engage said other end of the link whenv the conduit is pivoted in one direction, a second stop member carried by said conduit and disposed to engage said other end of the link when the conduit is pivoted in the opposite direction, and means to vary the positions of said stop members relative to each other whereby the angular movement of said conduit can bevaried. v, i a V l8. Asprinklercomprising a Water motor casing havduit extending through said water motor casing and adapted for pivotal movement relative'thereto and includ ing a water. inlet adjacent oneend thereof, means connecting said conduit to said vane whereby said vane moves.

'with s'aid conduit, there beingiat least one sprinkling crificeiiusaid conduit outwardly of said casing, a second passageways at opposite sides of the vane comprises a second conduit connected at one end to the inlet'of the first mentioned conduit and adapted forpivotal movement relative thereto with the other end of said second conduit adapted to communicate selectively with said passageways at opposite sides of the vane, means'limiting p1votal movement :of said second conduit, a cam member mounted for pivotal movement on 'saidfirst men tioned conduit, a radially extending arm mounted non-rotatably on said first mentioned conduit, stop members carried by said cam member at opposite sides'of said arm in position tobe engaged by said arm upon a predetermined amount of pivotal movement of said first mentioned conduit, actuating means carried by said cam member and vdisposed to engage said second conduit and move the same selectively into communication with said passageways at opposite sides of the vane'upon a predetermined amount of pivotal movement of said cam member in oppositedirections, and a spring biased'cam follower disposed, to engage said cam and rotate the same in'oppoing a vane mounted for pivotal movement therein, a consite directions upon a predetermined'amount of rotation of said first conduit in opposite directions.

'Ref erences Cited in the file of this patent UNITED STATES PATENTS Skinner Oct. 20, 1936 Nordenstam May 20, 1952 .h m Na...

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