US2475702A - Nozzle - Google Patents

Description

July l2, 1949.y A F. w. FUNKE 4 v 2,4755702 NozzLE l Filed March 23, 1946 x i i A I 2 Sheets-Sheet l INVENTOR. FRED `W FUNAE A TTOR/VE V5 July 129 1949. 4 F, WFUNKE 2,475,762

I NozzLE Filed March 25. 1 946 2 Sheets-sheet 2 INVENToR. FRE@ w FUN/fg ATM/PNEYS Patented July l2, 1949 NOZZLE Fred W. Funke, Oakland, Calif., assignor to Robert St. J. Cri', San Francisco, Calif.

Application March 23, 1946, Serial No. 65.6,663

2 Claims.

This invention relates to nozzles yand has for one of its objects the provision of a nozzle that includes several passageways therein and a valv-e for controlling the ilow of liquid through said passageways as desired, including a blow-oil type of strainer in one of said passageways and which latter passageway communicates with a spray port or tip.

Another invention is the provision of a nozzle provided with a valve that is easy to turn regardless of the water pressure against the same, and easy to service and recondition.

A still further object of the invention is a nozzle provided with a one-piece rotary valve body that provides an efficient control for a liquid free from undesirable leakage and which valve is easier to turn than heretofore in valves of the same general type of one-piece plug valves.

In the drawings,

Fig. l is an elevational view of the nozzle showing a spray tip and a straight nozzle tip on the ends of the discharge openings.

Fig. 2 is a sectional view through the nozzle of Fig. 1 but with the tips omitted.

Fig. 3 is a part elevational, part sectional view of the nozzle taken at right angles to the view in Fig. 2.

Fig. 4 is a sectional view through a modified form of nozzle showing a modified valve plug and valve structure.

In detail, referring to Figs. 1 to 3, the nozzle comprises a housing general-1y designated I, provided with an inlet 2 opening outwardly of one side of the housing, anda pair of discharge passageways 3, 4 opening outwardly of the side of the housing that is generally opposite the inlet. Within the said housing is an enlarged chamber 5 in which is rotatably supported a valve body `6, which valve body is provided with a through port 'I and a port `8 at right angles to port 'I and communicating with the latter at a point centrally between its ends.

The outlet passageway'S is preferably in axial alignment with the inlet passageway 2, and said inlet and outlet passageways open into chamber 5 at diametrically opposite points in the cylindrical walls 9 of said chamber, the remaining walls I0, II being at and in opposed relation to each other.

`The -body 6 comprises the central segment of a ball having flattened parallel opposite sides adjacent walls ID, II respectively, and a circular periphery that conforms to spherical contour in cross section, as best seen in Fig. 3.

Coaxial trunnions I2, I3 project from opposite 2 sides of said body lI coaxial with the latter, the trunnion I2 being rotatably supported in a, recess I4 in wall I0, there being a yieldable rubber or composition disk I5 between the base of said recess and the end of trunnion I2.

The trunnion I3 extends through a central opening in wall I l and through a stuffing box I5 tothe outside of the housing where it is provided with a wing member or handle I1 for turning by the fingers of the hand.

The flat Wall II comprises a disk that is threadly secured in an opening in the side of the housing, which opening is larger than the diameter of the body IIi. Thus upon unscrewing the disk II, and loosening a pair of coaxial sleeves at opposite sides of said body 6, as will later be exn plained, the valve body yIi may be freely withdrawn from chamber 5 Without removing the handle Il or uns-crewing the stuiilng box.

An -annular thrust gasket or :collar I8 of yieldable material, such ras rubber or the like, is around the trunnion I3 between disk II vand the plug body `6. While the end of trunnion I3 that extends through the Idisk II and stuffing box I6 is slightly smaller in vdiameter than the portion of the trunnion adjacent the body E and that is within collar I8,.nevertheless the body lli is yieldably held centered in the chamber `5 between walls Ill, II by said collar I8 andthe disk I5.

The spherical peripheral surface of the body -ii is spaced from the cylindrical walls 9 of chamber 5 by sleeves 20, 2| respectively reciprocable in thc inlet passageway 2 and in the outlet passageway 3. These sleeves and the ports l, 8 `are all prefu erably of the same diameter.

Sleeves 20, 2| project into chamber 5 and their projecting ends are of a contour conforming to the spherical surface of the periphery of the body E and said ends are yieldably held in frictional engagement with said spherical surface by means of collars 23, 24 respectively, positioned between the opposite ends of sleeves 20, ZI and retainer rings 25, Z6 that are respectively threaded in the inlet :and outlet passageways adjacent enlarged interiorly threaded ends 21, 28 of said passage* ways.

The collars 23, Z4 and rings 25, 26 are of the same internal diameter as the diameters `of sleeves 2i), 2 I. Rings 25, 2B are adapted to be rotated by a, spanner or screw driver .and by adjusting said rings relative to each other, the body 6 is substantially `suspended between them so that there is little friction between the trunnions and their bearings. By retracting rings 25, 25 the sleeves 2|, 20 will be loosened relative to body `li a suf- 3 cient degree to 'permit free withdrawal of the body from the chamber 5 after disk Il is removed.

From the foregoing description it will'be seen that there is a space between the body I6 and the walls of chamber 5 in which water Ipressure may be around body 5, but when the valve body is in closed position the water pressure in the inlet will tend to .urge-the body against the projecting end of sleeve 2|. The frictional engagement between sleeve 2| and the body is practically all the resistance there is, although the trunnions may offer a little. However, the valve body may be rotated almost effortlessly by two rlngers of the hand even though the water. pressure against the body is say, 300 lbs. per square inch'or more.

The spherical contour of the periphery of the body 6 and the corresponding contour of the projecting ends of the sleeves -enables them to be quickly and easily reground in the field should yleaks develop due to scoring of the lbody or sleeve ends from sand or, other abrasive.

A straight nozzle tip 30 or other nozzle `tip of any desired conformation may be quickly screwed into the threaded end 28 of the housing. Ordinarily this discharge passageway is for a. solid stream.

The discharge passageway 4 preferably opens outwardly of housing in the same direction as the discharge passageway 3,.but it opens into the chamber l5 through cylindrical wall 3 at a point midwaybetween sleeves 2|), 2|. l

The side of housing I is formed with an enlargement 3| through which said passageway 4 extends and said passageway is enlarged at 32 adjacent the point where it opens into cham- .ber 5.

Extending across said enlarged portion 32 in a direction at .right angles to the axis of sleeves 2|), v2| is a tubular screen 33 that i-s preferably of perforated metal. One end of said screen is secured in passageway4 adjacent the point where .it opens into chamber5, while the other end is secured in a bore 34 that is coaxial with the screen I and whichbore opens outwardly .of the enlarged lplug -a .predetermined distance the port 36 is uncovered whereby any Water entering the screen atits end opposite plug 35 will pass through the screen and out of port 36 thus cleaning the screen of any debris, etc.

Discharge passageway 4 continues from the enlargement 32 in gradually decreasing diameter, and angularly relative to the axis of the screen 33 through an exteriorly threaded projection 36' that extends in the same direction as the discharge end 28 of the main body, and substantially alongside said end 28. A spray or fog nozzle tip 3S is adapted to be screwed onto projection 36, or any other desired nozzle tip may be screwed onto said projection.

All water or liquid passing to the spray nozzle 33 must pass through the screen 33, therefore the spray nozzle will not be clogged by debris and rendered useless at a critical time. If the screen should become clogged, it can be quickly cleaned by merely partially unscrewing the .plug 35.

The port `8 in the body 6 functions to deliver `water or liquid to the discharge passageway 4 when the body 6 is turned to close passageway 3 and to place port 8 in registration with the inlet sleeve 20. When the body is turned to the position seen in Fig. 2, both discharge ports are closed, and by rotating the body 6 clockwise (as seen in Fig. 2) the port 'l is aligned with sleeves 23, 2| while passageway 4 is closed.

In the form illustrated in Fig. 4, the housing 40 substantially resemblesthe. body but the does not have a sleeve.

screen 33 and plug 35=are omitted, also the discharge passageway 3 (indicated at 4| in Fig. 4) Instead of such sleeve, the body 42 (similar to body 6) is formed with a bore 43 in axial alignment with the port 44 (corresponding vtofpo-rt 8). The bore 43 is interiorilyfthreaded for a member 45. A plug 46 projects from the bore 43 and is formed with a curvedouter surface that is adapted to slidably engagethe cylindrical surface of chamber 5. A yieldable disk 41 .of rubber or the like, is interposed between member 45 and plug 46 so as to hold the vouter surface of the `plug in yieldable engagement 'with said *cylindrical surface of chamber 5.

Exceptfor theA above, the structure is the same as in Figs, 1 "to-Band the same numbers are used to designate -correspondingparts The pressure of 'plug 4l 'on thewalls of chamber 5 is adjusted by rotation of the member 43 until the body "42 is .practicallysuspended between said Vplugand"s1eevef-2l). While the plug 47 does not `always remain at a point diametrically across chamber 5'from the sleeve 20, nevertheless it functions to relieve' the friction between the trunnions and the housing lsufficiently to 4make an easy 'operating valve.

It is 'tobe..understood that the detailed descripti-on and 'drawings are` not to be considered restrictive ofthe invention, but merely illustrative thereof.

I claim:

1. A dual discharge nozzle .comprising a housing formed withan inlettpassageway having one of its ends opening outwardly of said housing at one side of lthe latter and. formed with a pair of discharge passa'geways eachhaving an nend opening outwardly of said housing at the opposite side of said hou-sing, an enlarged chamber formed in Said body with whichone end of each said passageways communicate, va valve Abody rotatable in said chamberformed with ports arranged for establishing 'communication between either and both of Isaid `discharge passageways and said inlet passageway as 'desired `upon rotating said bodyabout'its central axis to predetermined positions, a tubular 'screen disposed within `one discharge passageway of said pair and `extending radially of said axis and coaxial with the port in said body that is `adapted to communicate withs'aid one discharge passageway when said bodyis turned to effect such communication, the walls of said one discharge passageway being enlarged around said screen intermediate the 'ends of said screen 'and said one discharge passageway extending from said enlarged portion to its end that opens outwardly of one side of said housing, a clean-out passage- `way formed in said 'housing communicating being formed with-an inletpassageway having one of its ends opening outwardly of said housing at one side of the latter and formed with a pair of discharge passageways each having an end openm ing outwardly of said housing at the opposite side of said housing, an enlarged chamber formed in said body with which one end of each of said passageways communicate, a valve body rotatable in said chamber formed with ports arranged for establishing communication between either and both of said discharge passageways and said inlet passageway as desired upon rotating said body about its central axis to predetermined positions, a tubular screen disposed within one discharge passageway of said pair and extending radially of said axis and coaxial with 'the port in said body that is adapted to communicate with said one discharge `passageway when said body is turned to effect such communication, the walls of said one discharge passageway being enlarged around said screen intermediate the ends of said screen and said one discharge passageway extending from said enlarged portion to its end that opens outwardly of one side of said housing, a bore formed in said housing coaxial with said screen at the end of the latter that is outwardly of said valve body, a clean-out passageway communicating between the outside of said housing and said bore at a point intermediate the ends of the REFERENCES CITED The following referenlces are of record in the 10 le of this patent:

UNITED STATES PATENTS Number Name Date 723,110 Wilmington Mar. 17, 1903 15 944,598 Caskey Dec. 28, 1909 1,077,697 Gates Nov. 4, 1913 1,442,204 Wilson Jan. 26, 1923 1,954,018 Miller Apr. 10, 1934 2,006,791 Corley July 2, 1935 20 2,030,458 McKellar Icb. 11, 1936 2,049,805 Heinen Aug. 4, 1936 2,070,490 Nordstrom Feb. 9, 1937 2,357,232 Snyder Aug 29, 1944 5 FOREIGN PATENTS Number Country Date 473,841 Great Britain 1937

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