US2489952A - Nozzle and adjustable spray deflector - Google Patents

Description

Nov. 29, 1949 L. E. BOUDREAUX ET AL 2, 8 52 NOZZLE AND ADJUSTABLE SPRAY DEFLECTOR Filed July 4, 1945 E E n c B biog/d E Equ dream llz'llz'am Z).- Fore INVENTORS AGENT Patented Nov. 29, 1949 h i 2 *2 o'clr' nut"engagingfthe"sdrface' oi the deflecting dy most remote fromf-the' tube opening. The

ilec'ti'ng they is adjustable oh the threaded stem 1 Thisinvhtlonrelates to a unique spray device and "morepart'icularly to a 'device' adapted- -ior '-o fluids whichareoontarninatedby ch"asscale, slirnefdirt and thel-ike. t fright-angle tothe-open endofthe' tubto In 'ce'rt'ain" communities and in certain" indus rottleand sprayfluid "issuing therefrom. I trialoperations watercontaining considerable In Figure 1=, t e-stem shpptrt i'swvel'dedto the mount of' dirtand*scale""is-often employed for in side ofthe tube irrafl horizontal position being re pro'tectivepurposesand similar instances in 'befntat' aright anglesofthat'the vertical portion hi'cli-a sfifistantially purewater need not-neces- I ofthestem issubstantiallyin the center of and sa i1 praying such water; it'has"" 16 cdaxial with the' t'ube. The stem is'atta'chedto *been found that la-r particles oi scale and'other 'theinside"offth' tube atf such apoint that" a 'atter containd' t -ereinfwou1d rapidly clog-the 'sti'eam-of liquid'passing throdgh the tube which penings of conventional *spray deflctedby theliorizontal portion-of the stem nozzles giving ise to' 'an iineven-stream of water 'ill be reuiiited beforit-passes from the nozzle or in s the pletely stopping the ilowl m' ening.f The vrtial section'of thestemfbeing thus renderingthe nzzle" totally ineliective for "ififtht center ofthe tubefper'r'riitswater flowing its intended use. '-therethrough'to be'dischargedin aiihifo'rm man- Spraying devices equipped with revolving parts rier? tikin'gthe e'fiectihg'body to p'roduce Biotint-likewise prove to-be of little valuein-the spraying tiniiousfuiiifoi'nrsheet 'of waten of fluids containing impurities of :iairly large n Figure2, thfsteni'e1ipport is-ivelded-to the particle sizeor those of a slimy or sticky nature tsideloftl'fe tubi thh*threade'dektreinity'of the which tndto biiildii'p a deposit ofioreign mat- 'er'ii engaging the lock n u't and th'e axial threaded ter=in--the nozzle tube orin the revolving-sections bore of the deflectingj-bodjf andextending for a raduallytclosing the openingsor grooves of the sl'i rtdi'starice uii'inthtnd-bmtn oft'he' tube. revolving portion and stopping-the flow oili'quidi inbodiment'of-theinventionshownin Figimportant object i of the present invention eing*more-'coinpadt" is generally to be pre 'cco'rdingly is the provision-bra non-plugging rr ed f r spraying-watencontainingsolidpartipray" device through which a-steadyst-reamf'of clesf-'of--'seal for other-impurities. "lioweverpfor ater cam-pass uninterrupted'byimpurities con r the discharge of"water 'ohtaini'ng sticky orslir'ny "'nd irr-the liquid. A'furtherobject'is the pro- I tter then zzl'e shown' iri l igiire LZ-is-t'o preis'ion inadevice of thistype ofan adjustable deafer'r his deyice' there is less surface "of ectihg-bbdy so that water beingl'discharged from starred'ptrtexhoseauh'the interior of the tube the no'zzleis' spread into a=uniform sheet. Es'till to which the slimy material may adhere and con- -further object is the provision of' an inexpensive ""''q11ent1yls iiklihobd (if tlfi flow ofdiquiddssunozzle which can readily be dismantled for purng from the tube to be diminished.

poses of repair, cleaning and the like. Another c r d disc deflector, comp s a circular object is the provision of a spray nozzle free of disc havlng a concave Surface adjacent o t e revolving parts. open end of the tube and surrounding the These and other objects which will occur to threaded stem s t p s a Wide openin those skilled in the art are attained by the device 40 between e end of the pipe d e deflector. shown in the accompanying drawings wherein: thus allowing passage of a greater Volume of Wa- Figure 1 is a vertical partial section view of the lie! and larger pa t cles of scale and the like with pray ngzzle having a curved disc deflecting bcdy. retention of the advantage of distributing water Figure 2 is a vertical partial section view of a uniformly over a Wide area. In either ins ance, modified form of the nozzle having a curved disc the deflecting y is able o be adjusted to give deflecting body. a fine spray of liquid or as will usually be the case Referring more particularly to the drawings, using water containing a considerable quantity numeral l designates a circular tube of uniform of impurities the body will be adjusted to a deinternal diameter open at one end for spray dissired fixed position, the size of the opening being charge of a fluid. A threaded stem, either 2 or governed by the particle size of the impurities 3 is mounted coaxially with said tube in the open contained in the water. In this way, large pieces end thereof. A curved disc deflecting body 5 has of scale and the like pass through the opening of an axial threaded bore which engages the threads the nozzle along with the sprayed sheet of water. of said stem and is held in a fixed adjustable po- Thus, plugging or clogging of the nozzle is presltion by a lock nut 4 on the threaded stem, the vented to give a smooth flow of liquid.

If it is desired to adjust the position of the defleeting body to give a finer spray, it is only necessary to screw the body inward on the threaded stem support to the desired point and then to bring the lock nut against it holding the body in a firm, fixed position. If the adjustment of the body is to outward giving a heavier spray of Water, it is first necessary to release the lock nut on the threaded stem support to the desired opening of the tube was smaller in diameter than the tube itself. The nozzle of the present invention has a distinct advantage over such tapered nozzles where a liquid is to be sprayed containing contaminating bodies of fairly large particle size. With a tapered nozzle or those having an opening of smaller diameter than that of the tube itself, the water stream containing scale, slime, and the like issuing forth under a heavy pressure is choked back into the interior of the tube as it strikes a deflecting body such as that shown in the drawings. While a portion of the contaminating bodies thus choked back is removed by the oncoming stream of water some of such material, particularly sticky or scaly matter, remains in the interior of the tube. This accumulation of foreign matter rapidly builds up in tapered nozzles resulting in early clogging of the opening with impurities carried in the water. In the nozzle of the present invention any scale, slime, dirt or other impurities contained in the water upon entering the tube of the nozzle passes through without clogging.

The spray device of this invention will usually be constructed of metal such as brass, iron, steel, etc. The various steels including acid-resistant steel, stainless steel and steels plated with metals, such as chromium and the like, may be employed under certain conditions warranting their use. In certain operations it may be desirable to construct the nozzle of a transparent substance, in which case glass or particular plastics may be used.

However, the nozzle herein described is primarily intended to be used for spraying water in the combat of fires and is particularly adapted for installation in industrial plants, manufacturing or using combustible or volatile substances. Under such conditions, it is convenient to use a number of spray nozzles spaced at intervals throughout the area to be protected, the upper extremities of the nozzle tubes being connected to a common pipe line.

In the installation of spray nozzles for fire protective purposes, it is particularly important to employ a nozzle which will not become readily clogged or plugged upon use. The nozzle of the present invention upon use over an extended period of time for spraying water containing a fairly large quantity of foreign matter has been found to function in a suitable and eflicient manner.

We claim:

A non-plugging spray device comprising a tube of uniform internal diameter open at one end for spray discharge of a fluid; a U-shaped stem, one leg thereof secured to the exterior of said tube, the other leg being threaded and extending into and axially Within the said tube; a disc-like defiector of greater diameter than said tube having a threaded axial bore and being adjustably mounted on the threaded leg of said stem; said deflector having its face adjacent the end of the tube formed with an annular groove extending in a plane parallel to the open end of the tube and extending over an area of the face from immediately adjacent the stem to an annular edge beyond the area of the opening in the tube.

LLOYD E. BOUDREAUX. WILLIAM L. FORE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 151,227 Jenks May 26, 1874 571,048 Ledden Nov. 10, 1896 981,081 Hammond Jan. 10, 1911 1,130,561 Amiss Mar. 2, 915 1,271,939 Reeves July 9, 1918 1,427,822 Kennedy et a1; Sept. 5, 1922 1,439,176 Loepsinger Dec. 19, 1922 1,549,861 Fogh Aug. 18, 1925 1,575,895 Baker Mar. 9, 1926 1,713,260 Chandler May 14, 1929 2,335,161 Sebald Nov. 23, 1943

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