US1029909A - Spray-nozzle. - Google Patents

Description

E. 0. BROWN. SPRAY NOZZLE. APPLICATION FILED JAN}, 1910.

Patented June 18, 1912.

EDWARD c. BROWN, or noclrnsrnn, NEW YORK.

SPRAY-NOZZLE.

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- To all whom it may concern Be it own that I, EDWARD C. BROWN, of Rochester, in the county of Monroetand State of New York, have invented certain new and useful Improvements in Spray- Nozzles; and I do hereby declare the following to be a full, clear, and exact description of the same, referencebeing had to the accompanying drawings, forming a part of this specification, and to the reference- I numerals marked thereon.

' My present invention relates to spray nozzles, and it has for its object to provide a simple, cheap and durable device of this character all parts of which will be readily and quickly accessible for cleaning and other purposes.

,A further object of my invention is to construct a nozzle in which both the quan tity an, nature of the stream can be regulated, .t e controlling devices therefor being well protected within the interior of the nozzle, and on the whole the invention is directed toward the provision of an article which willbe especially adapted in the-be- -fore nentioned and in other ways to use in connection with the spraying of plants and flowers.

" To these and other ends the invention con-' sists in certain improvements and combina-' tions of parts all as will be hereinafter more .-fully describedfthe novel features being pointed out'in the claims at the end of the specification.

In the drawings: Figurel is a side elevation, partly in section, of a nozzle constructed in accordance with and illustrating one embodiment of my invention, the section being taken substantially on the line 11 of Fig. 3; Fig. 2 is a longitudinal section taken substantially on the line 22 of Fig. 3; Fig. 3 is a top plan view of the parts with the outer cap removed} Fig. 4 is a bottom plan view of the inner cap; Fig. 5 is a bottom plan view, partly in section,

of a modification illustrating a difierent method of arranging the screen, and Fig. 6.

is a section of the modified device taken substantially on the line 6+6 of Fig. 5.

Similar reference numerals throughout the views indicate the same parts.-

The nozzle constituting the present embodimentof my invention comprises generally three parts, namely, a bo y portlon or casting 1, an inner cap 2' and an outer cap 3,

all ofthese parts being preferably threaded Specification of Letters Batent.

' rammenaune is, 1912.

Application filed January 3,, 1910. Serial No. 536,096.

together so that they may be conveniently separated as occasion requires. The body portion 1 includes a supply passage 4, the outer end 5 of which is threaded'to form a means of attaching the connecting nipple of a supply pipe (not shown) while.the upper expanding portion is formed with an innerledge or shoulder 6, upon, which is seated a suitable wire or other screen 7 This screen is held in place against its seat by the engaglng pressure of the inner flange or end 8 of the inner cap 2, which latter and the body portion are preferably provided externally with cooperating flanges 9 arid 10 that receive between them asuitable compressible gasket 11. The cap 2 .is"

threaded into the body portion 1 into engagement with the screen, at the same time com ressing the gasket and producing a liquid tight joint.

.On the outwardly projecting portion 12 of the inner cap 2 is threaded the before mentioned outer cap 3 that forms together therewith an annular chamber 13 and the outer wall lithereo'f is provided with 'a dis- ,charge orifice 15 (Fig. 1), arranged concentrically with respect to the chamberf This outer wall may be formed integrally with the cap, but in order to simplify the construction somewhat I prefer to form it of an independent plate which is held between the shoulder 15 of the cap and the adjacent end of the inner cap 2, agasket 16, similar to the firstbeing preferably interposed to seal the joint, and also, in the present instance, to constitute a spacing member that defines one dimension of the chamber.

This wall or plate can. be formed of sheet f metal, and 'I prefer to stamp' or press an annular rib 17 therein to increase the capacity of the chamber at its circumference for purposes that will later appear.

, In the outer Wall 18 of the innercap 2 is formed near the circumference of the chamber a diagonal passage 19 leading from I what may be termed the pressure chamber 20,

within the inner cap, to the mixing chamber 13 between the inner and outer caps, and itis so arranged as to intersect the latter chamber substantiallytangentially thereof. One wall of the passage is extended to project withinthe chamber 13 in'the form of a diagonally disposed hood or plate 22 to direct the stream in this tangential direction-whileanother portlon of the passage wall is similarly projected as at 23 within more delicate partsofthe apparatus, where the flow through the'passage, as desired. I accomplish th1s adjustment in the present instance by pivoting, preferably centrally at 24, on the inner or under side of the wall 18, a segmental plate 25, best shown in Fig. 4, that is rotated by means of a finger piece 26. This plate carries the wall 23 of the passage forming, in effect, a section thereof and by rotating it in one direction the latter can be gradually restricted and finally closedentirely, the plate having suflicient frictional resistance against the wall on which it is mounted to hold its various positions of adjustment, In closing this iagonal intake passagethe plate may be also manipulated to a position in which it simultaneously opens a direct passage 27 through the" wall18 that'iextends in substantially theflsame direction as the discharge orifice in thewall 14 of the outer cap..

Passing now v vice, the fluid being introduced under pressure'at the point of "supply ,4, first passes through the screen 7, which latter intercepts any solid matter that it may. carry and prevents the same from reaching the itmight lodge either thepassage 19 or in the dischargelorifice. It being assumed 535 thatthe latter passage is open and the passage 27 closed, theliquid is'introduced into the mixing chamber 13 in an oblique direction at the circumferencethereof,'producing .a whirling motion of great velocity within 40 the chamber, the enlargement of the chamber throu h the provision of the rib 17 in the wall 14: contributing to this result by increasingthe mass and hence the momentum at the outer circumference. The liquid,

' I however, is of necessity being forced out at the same time through the concentric discharge orifice 15, but retains to a. sufficient measure its rotative force, so that it emerges in the form of awhirling spray. If, however, a direct stream is required, this tan gential impact of the liquid within the chamber 21 is destroyed by closing the passage 19, and opening the direct passage 27 by turning the plate 25 to the position shown in'Fig. 4 in dotted lines, whereat a direct outward pressure only is communicated at the discharge orifice. To make these changes of adjustment it is only necessary to remove the cap 2, the periphery of which is preferably milled, from the body portion 1 whereat the operating projection 26 on the accessible.

In the uses to which the device is, as at present advised, best adapted, it is not often to the operation of the deplate 25 is rendered immediately required that the change of adjustment be made, and with the arrangement set forth 'the controlling device is so situated interiorly that any inadvertent changes in'the adjustment thereof due to the careless manipulation 'of the nozzle are not liable to take place. Neither is this device so liable to clog as one inwhich the means for, controlling the passage works in conjunction with the discharge orifice itself.

In Figs. 5 and 6 I have suggested another manner in which the screen may be associated in a nozzle of difierent design.

Therein the supply 'is entered through a passage a having a shoulder Zr against which a cup shaped screen 0 is situated. The passage a is restricted as at d to dis charge tangentially dinec'tly into a chamber e and thence out of the discharge orifice In this device no means is shown for regulating the discharge.

I claim as my invention: a

1. In a spray nozzle, the combination with. an annular chamber having a concentric discharge orifice inone wall'thereof and an intake passagein the opposite wall, a portion of a'wall of said passage'being extended to project within the chamber at an angle to direct the flow therethrough substantially at atangent to thechamber, of a closure for the passage, the said closure and chamber wall being relatively movable to increase or diminish the flow through the-passage.

' 2. In a spray nozzle, the combination with an annular chamber having a concentric discharge orifice in one wall thereof, a-direct intake passage extending in substantially the same direction as the first in the opposite wall'and a second intake passage in the latter, a portion of a wall of which is ex- .tendedto project within the chamber at an angle to direct the flow therethrough substantially at a tangent to the chamber, of a closure for both passages, the said closure and chamber wall being relatively movable to increase or diminish the flow through either passage, selectively.

3. A spray, nozzle comprising an annular chamber having a concentric discharge orifice in onewallthereof, and a tangentially arranged intake passage extending obliquely through the opposite wall, the walls of said passage being relatively adjustable 1n the plane of the wall of the chamber to increase or diminish the flow therethrough.

comprising an annular chamber having a concentric dlscharge orlfice' in one wall passage extending obliquely through the opposite wall, of a closure for said passagepivotally mounted on said lastmen'tioned YV3.11. a 5. In a spray nozzle, the combination with a body member having a supply passage 4:. The combination with a spray nozzle thereof and a tangentially arranged intake entering the same and provided with an inner flange or shoulder, of a screen seated on theflange, a capthreaded into the body member and exerting pressure against the firstito form therewith an annular chamber,

the'outer wall of said econd" cap having a discharge orifice conce tric to, the chamber and the passage in th corresponding wall of the first being arrangedto enter the,

chamber at a tangent.

6; In a spray nozzle, the combination with a body member having a supply passage en- Witnesses i tering the same, of a cap having a threaded engagement therewith and provided with a diagonal passage in its outer wall', an ad- 7 justable closure for said passage mounted on through, and a second cap having a threaded 20 the latter Wall to control'the flow thereengagement with the first to" form there-H I with an annular chamber; the outer wall of said second cap having a discharge orifice? conoentricto" the chamber and the passage a in the correspondingwall of the first being arranged toenter the. chamber at a tangent.

RUSSELL B. GRIFFITH, f

G. ENDSLEY.

EDWARD Q'BROWN.

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