US1883264A - Adjustable nozzle - Google Patents

Description

1932. 14.0. WRIGHT 1,883,264

ADJUSTABLE NOZZLE .rnea June 10. 1931 Patented Oct. 18, 1932 UNITED STATES PATENT. OFFICE.

HORACE C. WRIGHT, OI CHICAGO, ILLINOIS, ASSIGNOB '10 CHICAGO FLEXIBLE SHAFT COIPAN Y, OF CHICAGO, ELINOIS, A CORPORATION OF ILLINOIS ADJUSTABLE NOZZLE Application filed June 10,

This invention relates to sprinklers and has particular reference to adjustable nozzles forming a part thereof and serving to produ e a proper flow of liquid from the spr' er.

It is desirable in sprinklers of the type desighed primarily for use in sprinkling lawns and the like, to make the nozzle as sturdy and as free from-operating difiiculties as possi- 1o ble, compatible with proper distribution of the water. Another, factor in their design is cost of manufacture. A major diificulty with those of the prior art is the fact that they are so designed that plugging or stoppage of the orifice is apt to occur -,under certain conditions of operation. The same features of design tend to reduce the velocity of the water emerging from the nozzle so that the area covered by the sprinkler is considerably less than that normally possible.

These devices have also been comparatively complicated, easily broken, and expensive to manufacture.

I have aimed to provide a nozzle hav ng 2 a novel arrangement of parts producing 1mproved means for adjusting the flow of liquid therefrom.

Another object of the invention is the provision of a nozzle having a minimum number of parts each of which may be manufactured by economical forming operations.

A further object of the invention is the provision of a spray nozzle having improved means for distributing the water flowing therethrou h.

Other 0 jects and attendant advantages will become apparent to those skilled in the art from the following description and the accompanyin drawing in which Figure 11s a side elevation of a lawn sprinkler embodying my invention; I

Fig. 2 is a longitudmal section through one of the spray nozzles;

3 is a section on the. line 3-3 of Fig.

Fi 4 is a top view'of my im roved nozzle.

ile it will be understoo that my invention is not limited to use with a lawn sprinkler, I have shown it in the drawing as applied to a lawn sprinkler having a 1931. Serial No. 548,487.

sprinkler base 6 provided with means 7 for connecting the flexible hose or other water conducting means. A tube 8 is rotatably secured to the upper end of the base 6 and is provided with radial nozzle carrying arms '9 and 11 through which water or other liquid is conducted to opposed nozzles designated generally by the numerals 12 and 13. The nozzles 12 and 13 are connected to the outer ends of the arms 9 and 11 through threaded nipples 14 and 15 which also serve to conduct the water from the arms into the nozzles, the upper ends of the nipples enga ing the threaded openings 16 in the nozzle body 17 Each of the nozzles 12 and 13 consists of a body portion 17 having angularly positioned connecting chambers 18 and .19, the chamber 18 serving to receive the water from the nipple 14 or 15. A tubular valve member 21, one end 22 of which has an outer diameter such that it will be closely received within the chamber 19 is positioned in the latter chamber. The outer end 23 of the member 21 is of substantially smaller diameter both internally and externally than the'portion 22 thereof, such as to provide a shoulder 24 on the outer side and a constriction 25 on the inner side. A knurledhead portion 26 is positioned around the outer side of the portion 23 at one end of the mema0 ber 21 and is advantageously secured thereto by being tightly pressed thereon as shown at 27. A collar 28 is rotatably and slidably positioned around the portion '23 between the shoulder 24 and the head portion 26 and is provided with an inwardly sloping face 29 opposite-the shoulder 24. A backing member 31 of leather or other suitable material is positioned between the shoulder 24 and the sloping face 29 and is adapted to be compressed between the shoulder and the face and be forced against the walls of the chamber 19 to prevent the passage of liquid along the walls.

The valve chamber 22 is provided with an opening 32 adapted, when the valve member is in its completely open position to form a continuation of the chamber 18 as shown in, Figs. 2 and 3. This opening permits the water or other liquid to pass from the cham-.1:

her 18 through the opening 32 and out through the end 23 of the center 22. By manual rotation of the head 26 the opening 32 may be moved either wholly or partially out of coincidence with the chamber 18, thereby 'varyin the amount of 1i uid discharged from t e nozzle and the c aracter of the dischar e as will presently be more fully ex laine A groove or other mark 33' is positioned on the body portion 17 and a oove 34 is positioned on the head member 26 to indicate the position of the opening 32 with respect to the chamber 18. Thus, in the drawlng these indicating grooves are so positioned that when in coincidence the openin 32 is completely out of registration with t e chamber 18 so that no water will flow from the nozzle. Upon rotation of the head 26 in either direction the opening 32 will be progressively brought into registration with the chamber 18 until it reaches complete registration as shown in Fig. 3.

It will be seen that the device consists of low cost machining. operations. These are the bod member 17, the valve member 22,

the hea member 26, the collar 28, and the packin 31. The device is also very easily assemb ed by inserting the sleeve 22 within the chamber 19 of the body 17, placing the packing member 31 and the collar 28 over the end 23 of the valve member and forcing the head member 26 into position on the valve member. When the head member is brought into position the backing member 31 and the collar 28 are forced a ainst the shoulder 24 rendering the joint liquid ti ht. In addition the collar 28 is placed rmly into the body 17 thereby serving to hold the valve member 22 in its proper position within the body member. The head 26 thus serves durin the assemblin operations to force the co lar 28 into the ody 17 by means of the face 35, the face 35 also servin as a stop by contact with the end 36 of t e body 17. In this manner a nozzle is formed at a com-' paratively small cost because of the simplicity of its manufacture and its ease of assembly.

N o supplementary means are necessary. in order to produce the scattering effect desired of such a nozzle. For this reason it is not necessary to .interpose devices in the stream of water to produce a spraying effect for as the o nin 22 is moved nearly out of re 'stration with the chamber 18 only a re atively small amount of water passes into the-valve member 22. This water, however, enters at sufiicient velocity to be carried rapidly out of the end 23 of thevalve member, and its introduction at a small angle with respect'to the valve member, combined with the constriction 25 serves to give this small amount of water such a movement that it will emerge from the end of the nozzle parts requiring delicate adjustment or no Y parts susceptible of being laterally bent or roken during the service of the device.

While I have thus described and illustrated a specific embodiment of my invention I am aware that numerous alterations and changes may be made therein without materially departing from the spirit or sco e of my invention and I do not wish to be limited except as required by the prior art and the scope of the appended claims, in which I claim:

1. An adjustable nozzle comprising a body having converging chambers, a tubular valve member rotatably positioned in one of said chambers, having an opening positioned to be brought into registration with the point of convergence of said chambers by rotation of said member and an open outer discharge end of smaller inside and outside diameter than the remainder of said valve member providing a shoulder on the outer side of said member, a collar rotatably positioned on said member ressed into said chamber, a packing mem r on said valve member between said collar and said shoulder, and a knurled member secured to the outer end of said valve member for manual rotation thereof to vary the relative osition of said valve member and said bo y to control the flow of liquid therefrom.

2. An adjustable spray nozzle comprising a body having a valve chamber provided with a closed and an open end, and a second chamber intersecting said valve chamber intermediate its ends having an open end adapted to receive liquid and an end opening into said valve chamber, a cylindrical valve member rotatabl positioned in said valve chamber, said va ve member comprising an inner portion of the outside diameter of which is substantially the same as the inside diameter of said valve chamber and an outer portion of substantially smaller inside and outside diameter to provide a shoulder on said valve member, a space between the walls of said chamber and said valve member and form a constriction on the inside thereof, said first mentioned portion having on opening positioned to be brou ht into and out of re istration with the en of said second cham r by rotation of said valve member to admit fluid into said valve member, a collar in the space between said last mentioned portion and the walls of said chamber, having fixed bearing contact with said walls, rotatable bearing contact with said valve member, and a packing member pressed between said shoulder and said collar to prevent leakage of liquid around said valve member, and means for rotating said valve member to control the flow of liquid therefrom.

3. An adjustable spray nozzle comprising a valve chamber, a tubular valve member rotatably positioned in said chamber having a cylindrical inner surface of two different diameters, that of smaller diameter terminating in a discharge opening, and a sloping surface connecting the surfaces of different diameters, means for conducting liquid into said valve member at an obtuse angle with respect to the longitudinal axis of the discharge end of said valve member in a position to impinge against the inner. surface of larger diameter at a point closely adjacent to said sloping surface, whereby to impart particular flow characteristics to said liquid, and means for regulating the fluid entering said valve member.

4. An adjustable spray nozzle comprising a body having a cylindrical valve chamber open at one end, a tubular valve member rotatably inserted in the open end of said chamber, means secured to the outer end of said valve member for manually rotating the same, said valve member projecting beyond said body only such distance as required for the attachment of said means, said valve member having a bore of larger diameter at the inner end thereof, a bore of smaller diameter at the outer end thereof forming an orifice, and a converging bore connecting said first mentioned bore, means for conducting liquid to said Valve member at an obtuse angle with respect to the discharge end thereof in a position to impinge against the bore of larger diameter closely adjacent to said converging bore, said valve member having an opening adapted to register with said means upon rotation of the former, whereby the liquid is conducted into said valve member in a position and direction to impart desired flow characteristics to the liquid as it immerges from said orifice.

In witness of the foregoing I afiix my signature.

HORACE C. WRIGHT.

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