US1979104A

US1979104A - Method of making a spray nozzle

Info

Publication number: US1979104A
Authority: US
Publication date: 1934-10-30
Anticipated expiration: 1951-10-30

Description

L. C. GORDON METHOD OF MAKING A SPRAY NOZZLE Oct. 30, 1934.

2 Sheets-Sheet 1 Filed Dec. 25. 1932 Oct. 30, 1934. GQRDQN 1,979,104

METHOD OF MAKING A SPRAY NOZZLE Filed Dec. 23. 1952 2 Sheets-Sheet 2 Patented Oct. 30, 1934 UNETED STATES PATENT oFrIcE 8 Claims.

This method consists in making a spray nozzle to provide a means of giving a uniform flow of liquid through the nozzle when the same is finished.

A feature of the method resides in a simple and economical means of forming a chamber for liquid by drawing or forming a shell of suitable material, into the desired shape, placing in one end a nipple which has been formed cor- 10 rugated on one end to receive a flexible rubber hose or the like, and internally threading the other end which extends into the chamber which forms the shell of the nozzle.

The open end of the shell receives a Washer like member which has been died-out of sheet material having a cross sectional thickness of the desired degree and which after being died-out is trued in a die to make the same perfectly round so that it will fit perfectly in the open end of the shell, anchoring the washer in a suitable manner. The washer forms a valve seat for the spray nozzle.

It is a feature in the method to use the center portion punched out in forming the washer to act as the disc valve of the nozzle which is trued and expanded in dies in the different steps of the method and is formed with a tapered peripheral edge and anchored to a threaded stud.

A further step in the method is the forming of fine, transverse peripheral grooves by placing the disc valve within a peculiarly formed die having a series of piano-like Wires replaceably held in and forming a part of the die, which literally presses the grooves into the peripheral beveled surface of the disc before and after plating so that the disc valve is formed true with a series of uniformly formed transverse fine grooves extending across the bevel surface of the same.

Thus the steps of operation in the forming of the spray nozzle by my method may be considered as follows: A shell is first formed or molded out of suitable material into the desired shape. A hose receiving nozzle is anchored in one end of the shell and is formed with an internal thread to receive the stud of the disc valve of the nozzle. The shell is provided with a trued ring-like washer punched out of thick flat stock of metal or suitable material, and the center portion punched out in making the wash- 50 er is used as a disc valve by expanding the same annularly on one side in a swedging die which forms a bevel peripheral face to the disc valve, after which this valve is formed with a series of transverse grooves which are pressed into the 55 peripheral beveled surface of the valve, and a suitable threaded stud is axially anchored to this valve. After the disc valve and stud are plated, they are returned to the grooving die to make all of the grooves in the beveled peripheral face thereof true and clean. Thus when the valve is screwed into the nipple supported in the shell, the beveled edge of the valve will come intoengagement with the true right-angular edge of the washer from which the disc valve was originally punched and which forms the seat for the disc valve. The disc valve is moved by rotation toward or away from the right-angular edge of the ring-like seat to regulate the fiow of liquid through the nozzle.

Thus I provide a method of making a spray nozzle in a very simple and economical manner, the valve of which may be adjusted to give the desired flow of liquid through the same and directing the sprays of liquid in accordance with the setting of the valve.

The invention includes the spray nozzle of the character set forth wherein a hollow shell is formed with a hose receiving nipple projecting from one end, a rigid washer-like ring being anchored in the flared end to form a true valve seat, and a disc-like adjustable valve with fine transverse grooves is held in the hollow shell, adjustable to give the desired flow of liquid from the spray.

A feature of the method of making the spray 85 nozzle resides in forcing the disc valve which is formed with peripheral grooves into the groove forming die as a finishing operation in a manner to force the disc valve through the die; causing the grooves formed by the die to be cleaned out in this finishing operation and having a greater depth adjacent the outer face of the disc valve than at the inner face.

The features and details will be more fully hereinafter set forth as well as the different 95 steps of the method in forming the spray nozzle.

The drawings are for the purpose of illustrating the spray nozzle in its finished form and the different steps of operation in the making thereof.

Figure 1 is a perspective of the finished nozzle, showing a portion of rubber hose connected therewith to connect the nozzle with a source of fluid supply.

Figure 2 illustrates a cross section of the bellshaped shell.

Figure 3 illustrates the first operation, showing a disc punched from fiat heavy gage metal or material.

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the same.

Figure 4 illustrates the next step in the method of forming the valve seat and valve.

Figure 5 illustrates the disc valve with a threaded stud anchored thereto.

Figure 6 illustrates a section of the valve, showing its beveled peripheral formation after the disc has been expanded in an expanding die.

Figure '7 illustrates a perspective of the die for forming the transverse fine slots in the beveled peripheral edge of the disc valve.

Figure 8 is an enlarged sectional detail of a portion of the die shown in Figure '7.

Figure 9 is an end View of the disc valve after the step of operation which forms the grooves in the peripheral edge thereof has'taken place.

Figure 10 illustrates the tubing Irom which the nipple of the nozzle is formed.

Figure 11 illustrates the nipple lee-tore it is anchored in the shell.

Figure 12 is a cross section through the finished .spray nozzle.

Figure 13 illustrates the nozzle used as a lawn spray when it is desired.

My method of making ;a spray nozzle is car .ried out .by forming or molding the shell :10 into the desired shape or term. When this shell is .formed from metal the wall thereof may be be later defined.

The shell 10 when made of metal is preferably formed Withan ofiset portion 11 which is adapted to receive the member which forms the valve seat in the spray and the outer edge of the same may be rounded .at :12 to strengthen and finish The tonmation \of the .shell .l-G is the first step of the method.

The next step of the method is to punch out the disc 1 3 of aheavy gage metal tor other suitable material. The next step .follows by *=punch ing trom the disc 13 a smaller disc .14 which leaves :the ring or washer-like member 15, as a result of punching the disc 14 from the disc 13. In punching the disc 1. 1 from the disc i3 which leaves the ring 15., an axial hole 16 may be formed.

The method .follows by anchoring the thread- -ed:stud 157 .in the opening 16 :of the disc 14 and also in .swedging the ringelilse marginal groove 18 in the outer .face of the .disc 14 which riorms the peripheraledge l9 beveled as illustrated by the section in Figure .6. The threaded stud 17 may be secured rigidly .to the disc .14 in .any. suitable manner. When the disc 14 is formed of metal the stud 1''? may be sweat .ati2'0 to the disc 14. A suitable slot 21 *is formed in the outer end of the-stud 17 to receive a screw driver or other instrument for operating the disc 14 and the stud 1'7 when it is desired.

The method follows by forcing the disc 14 into the die -A which is formed with an inner v beveled surface "2 2 commensurate with the bevel of the peripheral edge 19. The die A is provided a series of fine wires '23 extending across the beveled surface 122 of the die and havingendsZZi anchored in the sidesiof the die. Each wire 23 is of a spring nature, like piano wire, :and is stormed in the shape illustrated in Figure 8. Each wire is easily removable or replaceable and the portion extending across the surface 22 fits into za slight groove maintaining the wire die members 23 in, equal spaced apart relationwto each other. In the step of the method of placing the disc 14 into the die A, fine transverse grooves 25 are formed in the beveled face 19 of the disc 14. completing the formation of the disc valve 14 which is adapted to be held adjustable in the nozzle B by the stud 17.

The method follows by placing the ring-like washer 15 into a truing die to form the same perfectly round and this member 15 is then placed .into the ofiset portion 11 and anchored or fixed therein in any suitable manner. The ring-like washer member 15 forms a valve seat for the disc valve 14 and the inner opening of this member forms a right-angular valve seat or surface toward or away from which the valve 14 .is rotated in the setting of the nozzle B.

A step oi" the method includes the iorrnation oi the tubular nipple-C which may be made from the tubing 26 by forming corrugations 27 in one end of the same which are adapted to receive a hose member 28 illustrated in Figure .1, and forming the other end of the nipple Cor tube .26 with .an internal thread .29 and which is adapted to receive the threaded end of the stud 1'7 of the valve 14. The nipple C formed with openings .f.

5A) so that when the :hose 28 is connected onto the corrugations .27 of the nipple C and the stud 1'7 is screwed into the inner end or the t-nipple 6, liquid may come from the tube 28 be directed out of the openings '39 into the chamber J 31 of the spray nozzle to direct the liquid toward the valve 14. The liquid is then caused to flow through the grooves .25 past the valve :14 of l'vhe nozzle to direct a fine spray from the :nozzle B "when the same has been finished and the valve 14 set :as desired.

Thus the nozzle B may be formed in a practical and economical manner to provide :a spray nozzle of a character where an even and uniform fiow :of liquid may be directed from the valve .14 of the r' same. Whether the valve 14is made of metal or other suitable material and it is plated after it has been formed with the transverse .groovesj25, it is preferred to include-as one of the steps of the method of making the same, the placing of the valve disc .14 back into and through the :die A :so .as to insure the uniform formation of the grooves 25 and slightly increasing the 'depthref the :grooves :25 adjacent the outer .face 'of the "valve, I have round by this method that each and every nozzle 9 is of the same true character and I am able to provide a spray nozzle having :afineness of manut'acture and finish wherein each nozzle will give :a uniform spray of liquid therefrom and which will permit the spray nozzles to be made more economical than has been accomplished hereto- .fore. :It is apparent that as the valve 14 is rotated the threaded stud 17 will regulate the position of the valve "14 in relation to the right-angular seat 32 in the disc-like washer or ring member 15.

It is apparent that the spray nozzle B may be made-in part-or in its entirety-of non-metallic ma terial where the various elements of the nozzle are formed by molding preferably under heavy pressure these various elements, so that they are a suitable hose 33 which may be a garden hose, so that the spray nozzle B will form a lawn spray or the like, to direct the water to the lawn as may be desired. The advantage of using this spray for a lawn is that the fine jets of water through the grooves 25 in the valve 14 and also out of fine openings 34 which may be drilled in the disc valve 14, is preferred, because the fine jets of water are uniform and give a very desirable flow of water which does not injure the lawn or direct too large an amount of moisture from the nozzle. The valve 14 may be adjusted as heretofore set forth so that the spray may be regulated from the grooves 25. It is also apparent that in a spray nozzle B used as illustrated in Figure 13, that the beveled surface 19 may be of a greater degree than that desired in the other forms of the nozzle and it is also apparent that the valve seat in the washer-like member 15 may be beveled to conform with the bevel of the surface 19 of the valve 14. These variations do not change the method of making the spray nozzle nor its operation. My method simplifies and reduces the cost of manufacture of spray nozzles of this character. The operations may be carried on as outlined in the various steps or may be varied as may be desired to complete the finished spray nozzle and may consist namely, in the forming of a shell providing a hose receiving nipple in fixed relation with the shell, providing a valve seat of a uniform defined character, providing a disc valve formed as a part of the material in the making of the valve seat including a valve supporting stem threaded to adjust the valve in relation to the hose nipple, and providing defined accurate transverse grooves in the operative surface of the valve. Variations apparent to those skilled in the art are considered as within the scope and meaning of the invention.

I claim:

1. The method of making a spray nozzle consisting in forming a shell to provide a hollow liquid receiving chamber, then forming a valve seat and anchoring the same in the shell, providing a valve, swedging a beveled surface and transverse grooves in the same, anchoring a hose receiving nipple to the shell with a portion thereof extending into the chamber of the shell, and connecting the valve with the nipple so that rotation of the valve will adjust the same in relation to the seat.

2. The method of forming a spray nozzle consisting in forming a hollow shell with a tubular, corrugated, perforated and threaded nipple in one end of the same, then forming a valve seat and valve by punching from heavy gage material a disc and then punching another disc from the said disc, the second disc forming the valve, and the ring portion remaining the valve seat, truing and anchoring the valve seat in the shell, then swedging the valve to form a bevelled surface thereon, anchoring a threaded stud thereto, and swedging transverse grooves in the beveled surface of the valve and adjusting the valve by threaded relation in the nipple to regulate the flow of liquid through the grooves of the valve to provide a nozzle with a uniform flow of fine sprays of liquid therefrom.

3. The method of forming a spray nozzle consisting in forming a shell to provide a hollow chamber therein, securing a tubular nipple with a corrugated end projecting from the shell, and a perforated and threaded end projecting within the shell, then forming a trued ring-like valve seat and anchoring it into the shell, then forming a disc-like valve with an outer beveled edge and forming transverse grooves in the beveled edge by swedging the disc valve in a die formed with a series of wire members adapted to swedge the grooves in the valve, then anchoring a threaded stud to the disc valve by which the same is adjusted in relation to the seat by threaded engagement with the tubular nipple anchored in the shell.

4. The method of forming a hollow spray nozzle consisting in forming a hollow shell from suitable material with a hollow nipple anchored thereto and having an outer end adapted to connect with a hose, and an inner end perforated through which liquid may pass and threaded to receive the threaded stud of a valve, then forming a trued valve seat to be positioned in the shell opposite to the nipple by punching out a ring, then forming the valve proper from the center punched out in making the valve seat, swedging the edge of the valve to bevel the same, and swedging transverse grooves in the valve and securing a stud thereto to support the valve in relation to the seat by threaded engagement with the nipple anchored in the shell.

5. The method of forming a spray nozzle consisting in forming a hollow shell from suitable material with a hose receiving nipple anchored therein, and forming a valve seat and valve from a disc-like member, the valve seat being formed in a ring-like member when the valve proper is punched therefrom, trueing the ring-like valve and anchoring it in the shell, then swedging the valve with transverse grooves in the peripheral edge thereof, and securing a threaded stud to the valve to connect by threaded engagement the valve and nipple for adjustment of the valve in the nipple.

6. The method of forming a spray nozzle valve and seat comprising punching a concentric disc from a circular flat piece of metal to form a ring 4 piece of metal to provide a ring and a disc, spreading one surface of said disc to provide a tapered edge thereupon, and forcing said disc into a die to form grooves in the edge thereof.

8. The method of forming a spray nozzle valve and seat consisting in forming a round flat metal blank, punching a concentric disc of metal from said blank to provide a disc and ring, swedging a groove in one side of said disc to provide a tapered edge on said disc, and grooving said tapered edge.

LLOYD C. GORDON.