US1903354A - Nozzle - Google Patents

Description

April 4, 1933. o. E. BAcKus 1,903,354.

NOZZLE l Filed NOV. 14, 1929 Patented Apr. 4, 1933 escala recare @rauwe-ultra. wstore@ N OZZLE unieron filed Member 14. 1.529- Serial NQ- 49u16?.-

This invention relates to certain new and useful improvements in nozzles of the type illust-rated --in Patent No. 1,1507 ,084, and has as one of its objects-the provision of a nozzle f in which the possibility of mechanically freezing its component partsl is overcome.

Another object of this invention resides in the provision of a nozzle of the character n, described having-two cooperating sections each providedwith a straight bore adapted to be registered to 'form a continuous passage through the nozzle when the sections are in predetermined relative positions.

Another object of this invention resides in 'l5 the provision of a simplilied Vmeans 'for' scattering or spreading the liquid as it issues from the nozzle.

And a 'further ojb-ject of this `invention is to simplifytheconstruction of nozzles of the character described 'and thereby greatly acilitatejtheir manufacture.V f

lilith the above and other objects in view which will appear as the description proceeds, my invention resides yin thenove'l 'construction, combination ,and arrangement of parts substantially as hereinafter described and more particularly defined by theV ap.- pended claims, it Abeing ,understood that such changes 'in Athe Yprecise Vembodiment of the come within the scope of the claims.

1n theaccompanying drawing, 'I have illustrated one complete example ofthe physi- I cal embodiment of my'invention constructed U according to the best mode l have so far devised for the practical application of the principles thereof, and in which:

Figure 1 is a view partly in elevation and f partly in section of a. nozzle embodying my invention, the cooperating sections being iliustrated in their positions at which the nozzle is fully open;

Figure 2 is a view similar to Figure 1 illustrating the nozzle fully closed, and

Figure 3 is an end view of the nozzle taken on the plane of the line 3-3 of Figure 1.

Referring now more particularly to the accompanying drawing, the numerals 5 and 6 represent the body of the nozzle and the rotatable plug, respectively, from the outer end liereindisclosed invention may be inade as .of lwhich the stream of liquid issues,l The body 5 has its lower portion enlarged and internally threaded, as iat 7 ,tor-attachment to a conventional hose coupling, not shown, and its mainportion is -taperinglybored, as at 8, 55 to receive `the correspondingly tapered :inner end :9 .of the plug 'It is noted thatthefta',- per of the bore 8 andthe plug end 19 which is received therein is comparatively great to preclude 4all possibility of mechanical reeza0- ing. A nut 110 threaded on ,the innermostend of lthe plug, outwardly of a lock washer 191 hay-ing a iiatted portion engaging fa Yflat face 1 2 of the plug, holds the plug against withdrawal from 'the body.

The outer Asurface of both-the body and the plug A6 Aare 4prefer-ably conical land form continuations of eachother as clear-ly illustrated, and the medial portion ofthe plu 4is knurled, as at 13, to -acilitate rotation t ereot with respect to the body. A i

rlhe body and the plug are-providedwith bores 14 and 15, respectively, 'which are disposed Yeccentric'ally and -angu-larzly to the axis of -the nozzle and are larranged so that when the plug and ybody are in their relative positions illustrated in Figure 1, they form" con- ,-tinuations oit-each other. In this condition thenozzle lis Yfully open. The outermost end of the 'bore 15 in Athe-plugtermin-stes short ,of 80 kthe-nozzleend and communicates withabore 16 of-smvallerdiameter,ashoulder 17 ibeing formed lbetween the'boresu`-j15lan'd 16. The A shoulder being formed-by the end of the drill used to --fform-thefbore `-is directed at 85 an outward `angle so that liquid flowing through -the nozzle, in striking the shoulder, is-deflected at an angle to give the spray a l conical shape. f

turning the plug with lrespect to the 90 b ody Lto 'restrict' xthe passage atfpided zby `the lbores `14`and '15,-1theliquid l-inleav'ing{the'bore 14-.strilgesfthe conical wall,9 oith plugibel'fore entering the bore 1.5 and 'is thus :given -a spiralimotion to issuei'rom the nozzlea'sa revolving cone. is

The restriction ofthe passage which'turn- Iingaoithe plug aii'ordsj-breaxks' up'the particlesor 'drops o'ffliquid so that 1 turned to its position illustrated in Figure 1 -in which the two bores 14 a-nd 15 are aligned,

al practically solid stream issues from. the

. nozzle.

It is noted that by varying the length of the bore 16, or by changing its diameter to increase or'decrease the shouldervl?, the shape of the spray can also be varied, for if the bore 16 is relatively long the effect of the shoulder will be minimized and where the shoulder is increased in width by'a reduction of the diameter of the bore 16 the effectiveness thereof is increased.

From the foregonig description taken in connection with the accompanying drawing, it will be readily apparent to those sltilled in the artto which an invention of this character appertains that I provide a nozzle of extreme simplicity and design, having a straight bore," in which the possibility of mechanical freezing of its cooperating elements is eliminated, and which is so constructed as to be easily manufactured.

What I claim as my invention is: Y

1. In a nozzleof thejcharacter described', a member havingr a tapered bore axial to the longitudinal axis of thenozzle as a whole, a second member having a correspondingly tapered portion receivable in said bore to be rotatable with respect to the first-mentioned member about said axis of the nozzle,`each of said members having straight bores eccentric to the axis of thel nozzleand adapted to be aligned 'when the members are in a predetermined relative position, and the second member having means for spreading liquid issuing therefrom.

v2. In a nozzle of the character described, two cooperating members rotatable with respect toeach other about the longitudinal axis of the nozzle as a whole, each of said members having a bore disposed eccentrically and at an angle to said longitudinal axis, and the connection between the members being such that whenpthe members are rotated a whole, and said members having straight bores adapted to be axially aligned to form Y variable by relative rotation of themembers,

and the juncture yof the members atthe meeting ends of the rbores beingr near the ingress end ofthe nozzle sothat'the bores cooperate to impart a. spiral motion to the-fluid passing therethrough.

5. A nozzle comprising two cooperating members joined forjrelative rotation about the longitudinal axis of the nozzle as a whole with the juncture of the meeting central portions of the members near the ingress end of the nozzle, each of said members having a straight bore with one end Aopening eccentrically to said meeting central portion of its member, so that upon relative rotation of the.members, the meeting ends of the bores may be offset with respect to each other to increase and decrease the degree of com-V munication therebetween and to impart a spiral motion to liquid flowing therethrough.

6. A nozzle comprising two members which together form a structure symmetrical about an axis common to both members, means rotatably connecting the members for relative rotation about said Vaxiswith their point of juncture substantially intermediateY the ends of the nozzle land the outer surfaces of the membersl substantially continuous with each other, each of said members having a straighteccentric bore at an angle to said axis whereby the bores may be olf-set with respect to each other by relative rotation of the members to increase and decrease the degree of communication therebetween and to impart a spiral motion to fluid flowing therethrough, and a shoulder at the discharge end of the outermost bore to spread the -fluid Vas it issues from the nozzle. v

In testimony whereof I have hereunto affixed my signature. Y

oscAR ln. excuus.

bore axial to the longitudinal axis of the Y Unozzle as a whole, a plug having a correspondingly tapered portion received in said bore whereby the plug is rotatable with respect to the body member about said axis of the nozzle, and the body member and plug having straight eccentric bores disposed at an angleto the longitudinal axis of the nozzle adapted to be aligned and disaligned upon rotation of the plug in the body member, and means formed in the bore of the plug for causing fluid passing throughthe nozzle to spread as it leaves the nozzle. c

4. Anozzle comprising two cooperating members rotatable with respect toeach other about the longitudinal axis Vof the nozzle as

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