US2252698A

US2252698A - Universal nozzle

Info

Publication number: US2252698A
Application number: US300374A
Authority: US
Inventors: Leslie M Button; Horace W Dawson
Original assignee: Individual
Current assignee: Individual
Priority date: 1939-10-20
Filing date: 1939-10-20
Publication date: 1941-08-19
Anticipated expiration: 1958-08-19

Description

Aug. 19, 1941. L. M. BUTTON ETAL UNIVERSAL NOZZLE 4 Sheets-Sheet 1 Filed Oct. 20, 1939 /NVN7'0RS LesZz'eMBuiion Horacek/flawson II L' l i FTTORNEY Aug-v 1941- 1.. M. BUTTON ETAL 2,252,693

UNIVERSAL NOZZLE Filed 00%. 20, 1939' 4 Sheets-Sheet 2 LesZi'aMBuiion 2520i I won,

FTTORNEY 1941- L. M. BUTTON EI'AL ,5 8

UNIVERSAL NOZZLE Filed Oct. 20, 1959 4 Sheets-Sheet 3 INVNTORS ff Leslie M1501 20/2 Horace P/Daw son 14 TTORNEY A 9, 9 1. L. M. BUTTON my 2,252,698

UNIVERSAL NOZZLE Filed Oct. 20, 1939 4 Sheets-Shee t 4 //vv/v TORS Leslie MHz/2 0m Horace .Ddwsorz 8 BY HTT'ORNEY Patented Aug. 19, 1 941 UNIVERSAL nozzLs Leslie M. Button and Horace W. Dawson, Fort Lewis, Wash.

' Application October 20, 1939, Serial N0. 300,374

(Granted under the act of March 3. 1883. as amended April 30, 1928: 370 O. G. 757) 13 Claims.

This invention described herein may be manufactured and used by or for the Government for governmental purposes, without the payment to us of any royalty thereon.

This invention relates to nozzles, more particularly it is directed to devices of this character for use on fire hose or sprinkler systems for fire ex- 1 tinguishing purposes.

' One of the objects oi the invention is to provide a vaporizing nozzle that will thoroughly vaporize any liquid flowing therethrough and which isadapted to be adjusted in such a manner as to produce various changes in the shape or characteristic of a vaporized stream of liquid discharged from a nozzle.

Another object of the invention is to provide a vaporizing nozzle that will break up the liquid flowing through the nozzle into minute-particles, which completely fills a cone-shaped vapor fleld produced by the nozzle and to provide means on the nozzle adaptedto reshape the cone-shaped vapor field into a straight stream in such a manner that it is thoroughly mixed with air and has a greater reach than from the conventional smooth bore nozzle.

Another object of the invention is to provide means on a modified form of nozzle ior introducing a foam producing chemical into a stream flowing through the nozzle, whereby the chemical may be applied to fires.

Another object or the invention is to provide still other modified forms of nozzles containing fixed annular apertures for producing annular streams which are projected across each other.

Still another object of the invention is to provide nozzles which are adaptable to all the needs of fire fighting, certain oi. which nozzles may be completely shut oil, which are simple in operation and sovconstructed that they may be quickly and easily taken apart for cleaning or repairing.

In the Patent No. 2,140,517, issued to Horace W. Dawson, one or the co-inventors oi the present application, there is disclosed a vaporizing nozzle including a divider block which is secured on the discharge end of the nozzle by means of a plurality of supporting members, each containing a flattened blade which is attached at one end to the divider block by means of screws. the said for attachment with a hose is also disclosed in this patent.

It has been found that the manner of mounting the divider block, flange ring and screw coupling to the nozzle, as disclosed in the above mentioned patent, maybe greatly improved and that adjustable means could be provided on the nozzle to produce a straight stream up to the limit of the nozzle, the straight streamproduced being in some respects superior to that of a smooth bore nozzle in that it holds a longer trajectory thereby obtaining greater distance and in that it is not as easily afi'ected by the wind.

It is therefore the aim and purpose of this invention to provide nozzles includingthe above mentioned improvements together with other improvements to be hereinafter disclosed.

With the above and other objects and advantages in view the invention consists of certain features of construction and operation oi parts which will hereinafter be described and claimed and in which Fig. 1 is a side elevation of one form of the improved vaporizing nozzle;

Fig. 2 is an upper end elevation thereof;

Fig. 3 is a longitudinal sectional view taken on g the line 3-3-01 Fig. 2;

Fig. 4 is a cross-sectional view taken on the line 4-4 of Fig. 1;

Fig. 5 is a cross-sectional view taken on the linet-l of Fig. 1;

,Fig. 6 is a side elevation of a body portion of the nozzle;

Fig. 7 is-a perspective view partly in section of two flattened blades joined together and used in carrying out the invention;

Fig.8 is a side elevation of one of the flattened blades;

Fig. 9 is a side elevation of the other flattened 0 blade;

Fig. 10 is a side elevation partly in section of a modified form of nozzle;

Fig. 11 is an upper end elevation thereof;

Fig. 12 is a cross-sectional view taken on lin l2-.l2 of Fig. 10; I

Fig. 13 is a cross-sectional view taken on the line iI-ll of Fig. 10;

Fig. 14 is a side elevation of a valve used on divider block being arranged on the. discharge end the modified form of nozzle;

of the nozzle so as to coact in such a manner with a stream issuing from the nozzle as to direct the stream across an inwardly directed stream. A flange ring provided on the nozzle for holding Fig. 15 is a top end view thereof Fig. 18 is an upper end elevation of another modified form or nozzle or nozzle tip;

Fig. 1'7 is a vertical sectional view thereof taken a packing in place thereon and a screw coupling on the line I'l-ll of Fig. 16;

Fig. 18 is a top end view of still another modi fled form of nozzle or nozzle tip, and c Fig. 1 9 is a vertical sectional view thereof taken on the ine I9-I3 of Fig. 18.

In the illustrated embodiment characterizing the inventions, one form of nozzle is shown in Figs. 1 to 9 inclusive and comprises a body portion I adapted to act asa vapor adjusting nut. The body portion or vaporizing adjusting nut I is cylindrical in form and is internally threadedat its lower end at 2 and provided externally with threads 8 which are shown as being double and ending abruptly at the upper and lower ends of the body portion at 4, as illustrated in Fig. 6. The body portion I is also provided with upper and lower externally threaded end portions and 6 respectively, which are of reduced diameter and adapted for the attachment of an internally threaded ring 1 and a flange ring 8 respectively. The internal threads 2 on the lower end of the body portion I are provided for'engaging the threads 9'formed internally on the lower end of a hollow valve I0, containing a central opening II.

The valve III is also externally threaded at its lower end at I2 for the attachment of an internally threaded upper end of a screw coupling I3 which is also internally threaded at I5 for the attachment of a fire hose or the like (not shown). The upper end of the body portion I is formed with an upwardly and outwardly inclined surface I5 and with a concave or partially spherically curved reentrant portion I6 which is formed on the inner surface of the body portion I and extends to the lower inner edge of the surface I5 thereof. 7

The flange ring 8 is internally threaded at IT for engagement with the lower externally threaded end 6 of the body portion I' of the nozzle and is provided with an inwardly extending flange portion I8 on its lower end which is adapted to engage the outer surface of the .valve I0,

' whereby a recess I9 is formed for a packing 20.

In order to prevent the packing 28 from working up into the threads 2 on the body portion I and the threads 9 of thevalve I 0 and to form a surface with which to apply pressure to the packing, a ring 2I made of any suitable material, such as brass or bronze, is placed around the outer surface of the valve If], the said ring abut- "ting against the lower end of the body portion I. The external threads I2 on the lower end of the valve Ill are of lesser diameter than the valve itself, whereby the flange ring 8 and the ring 2| may be easily slipped on the outside of the valve, it also provides an easy means of changing couplings to match various hose threads.

The hollow valve III is provided with an upper end portion 22 which is smaller in diameter than the lower end portion 23 thereof, whereby an annular channel 24 is formed between the inner surface of the body portion I and the outer sunface of the valve. The upper end portion 22 of the valve is provided with a central opening 25 which is smaller in diameter than the opening II in the lower portion 23 thereof and is joined to the lower end portion by an integral substantially frusto-conical shaped portion 26 having an upwardly and inwardly converging side wall 21, containing spaced upwardly projecting inlet ports or openings 28. On the upper or free end of the portion 22 of the valve is a bulbular portion 29, which is provided at the upper end of the central opening 25 with an outwardly bevspherically shaped outer surface 8|. The upper outer end of the valve is faced .back to provide a flat surface having an annular groove 82 formed therein, whereby two conical streams adapted to be produced by the nozzle will not meet at an edge of the material forming the nozzle but in mid air, thus providing a better effect.

A divider block 88 which comprises two substantially conical-shaped portions 84 and 86 is provided centrally of the valve at its upper end. The substantially conical-shaped portion 84 of thedivider block is inverted and extends downwardly below the outer end of the valve into the central opening 25 thereof, with the outer edge of the divider block contacting with the beveled surface 30 on the upper end of the central open-- ing 25, when the nozzle is in an inoperative position, as illustrated in Fig. 3. The divider block 38 is carried by two

flattened blades

36 and 81 which are disposed edsewise to the nozzle and at right angles to each other, as more particularly illustrated in Fig. '1. One of the blades 36 is cut substantially halfway through at its center from its inner edge 38 which forms a slot 38, as more particularly illustrated in Fig. 8, and the other blade 81 is cut substantially halfway through at its center from the outer edge 48 thereof, providing a slot H, as more particularly illustrated in Fig. 9, whereby the two blades may be pressed together with the adjacent portion of the blade 86 from the slot 88 engaging in the slot 4| of the blade 31. By this manner of joining the two

blades

86 and 81 together both of the blades may be pressed into cross slots 42 formed in the conical-shaped portion 35 of the divider block 83. The outer or free ends of the

blades

36 and 31 are threaded at 43 and are adapted to be pressed into spaced slots 44 which are. formed on the upper end of the body portion I of the nozzle and which extend from the inner edge of the beveled portion I5 on the upper end of the body portion I, through the outer surface of the threaded portion 5 on the upper end of the body portion.

The internally threaded ring 1 is provided with a beveled surface 45, which forms a continuation of the bevel surface IS on the body portion I, and the external diameter of the ring 1 is the same as the body portion I, whereby the outer external surface thereof is flush with the outer surfaceof the body portion. Upon securing the ring lover the externally threaded upper end 5 of the body portion I the internal threads'of the ring simultaneously grips the threaded ends 48 of the

blades

36 and 81, thus bridging the space between the divider block 33 and the body portion of the nozzle, and providing means for keeping the divider block rigidly in place.

Adjustably mounted on the body portion I is a cylinder or tube 46 acting as a stream shaper which is internally smooth and slidably in coneled surface 88, and with a concave or partially 76 tact with the outer surfaces of the double threads 3 of the body portion I and provided at its upper end with a flange" to protect the tube 46 from damage by rough usage, and with an adjusting ring 48 on its lower end containing set screws 48 which are adjustably mounted in the ring 48 and adapted to engage the threads 3 of the body portion I. The ends of the threads 8 of the body portion I are caused to end abruptly at 4, as illustrated in Fig. 6, to limit the longitudinal movement of the stream shaper 46 on the body portion.

In operation of this form of nozzle, assuming that the body portion or vaporizing adjusting nut aaeaeoe of, some of the liquid is caused to pass through the inlet ports or openings 28 provided in the side walls 21 of the frusto-conical shaped portion 28 of the valve and to enter the annular channel 24 and to leave at II at the upper end, Z

thereof, thereby producing two streams of liquid adapted to flow through the upper end of the nozzle. The stream of liquid flowing through the annular opening ill is caused to be formed into an inverted hollow conical shaped spray at the upper end of the valve by striking the lower conical-shaped portion 34 of the divider block ll and the outwardly beveled surface 30 formed on the inner surface of the valve at the upper end of the opening 25 thereof. The stream of liquid flowing through the annular opening II is caused to be formed into a substantially hollow conical-shaped spray by being deflected inward- 1y by the concave or partially spherical-shaped surface I! on the upper end of the body'portion I and the outer convex or partially sphericalshaped surface ii of the bulbular portion of the valve. By this construction the two streams of liquid which have been broken up into two conical-shaped sprays are caused to oppose each other which when they attempt to cross each other are further broken up into a flne vapor fleld of a greater diameter than the body portion 1'. The tube ll is provided with an inwardly extending flange ii, atits lower end which provides a stop and which is adapted to slidably flt around the body portion l'", whereby an annular chamber 62 is formed between the inner surface of the tube It and the outer surface of the body portion for containing a liquid chemical such as, a

foam producing agent which may be used in carrying out the invention. The annular chamber 62 is connected to a suitable source of chemical supply (not shown) by means of a conduit 68 connected by one end to a fltting 84 leading into the chamber 02. An upwardly and outwardly inclined surface 65 and an inwardly extending beveled surface it which extends from the inner edge of the inclined surface 85 to substantially the limit of the greatest inside diameter of the body portion I and a plurality of suitable capillary openings 81 which lead from the chamber '2 into the upper end of the nozzle through the surface 85 are also provided on the upper end of the body portion i, for a purpose which will hereinafter appear.

The upper end ll of the screw coupling i3 is provided with an upper and lower integral bar 00 and 88 respectively, which bars are horizontal- 1y disposed across the walls of the coupling i3 and lie one above the other. The upper bar 88 is provided with an enlarged central portion 10 containing an internally threaded opening Ii in which the lower end of a'stem 12 of a valve II is threadably. mounted. The stem 12 of the valve is provided with'a central bor II which in front of the nozzle. Should the body portion I be moved forwardly with relation to the valve l0 there will be less restriction of the flow of the two sprays of liquid through the discharge end of the nozzle and the characteristic of thea straight stream which causes the stream to have a longer trajectory thereby obtaining greater distance. I

The modified form of nozzle illustrated in Figs. 10 to 15 inclusive, comprises a cylindrical body portion I screw-threaded externally at its lower end for the attachment of an internally threaded ring 52 having an inwardly extending flange portion 58 which is adapted to engage the outer surface of the upper end 54 of a screw coupling ii, the lower end 55 of which is internally threaded for the attachment of a fire hose or the like (not shown).

The lower end of the body portion I is beveled at II to provide a space for the reception of a suitable packing 51 and an annular groove is is formed around the outer surface of the screw extends the entire length of the st and leads into a hollow bulbular or bell-shaped portion 15 which is formed on the upper end of the valve 13.

The bulbular portion I! of the valve is open at its front end which is faced back and has an annular channel I6 provided therein, whereby two conical streams adapted to be projected from the nozzle will not meet at an edge of the nozzle,

but in mid air, as in the first described form of nozzle. The bulbular portion ll is provided with a substantially spherically shaped portion 11 and an inWardly beveled portion 18 on its outer surface and with an outwardly beveled portion 18 on its inner surface. Spaced lateral inlet ports or openings .0 are provided in the bulbular portion 15 'for allowing fluid to pass therein from the body portion i and toieave at the upper end of the bulbular portion. The valve 13 is provided with'a plurality of spaced blades 8i which are disposed edgewise of the nozzle and extend horizontally outwardly from the hollow stem 12 of the valve to the inner surface of the body portion I, with the outer edge of one of each of the blades engaging in one of each of a plurality of vertically extending ribbed grooves l2 formed on the inner surface of the body portion.

In the center of the nozzle is a screw-like member ll which comprises a slotted head 84 having an outwardly inclined surface 85 which conforms coupling It for the reception of a ring is which 7 may be split and is adapted to bear against the packing i1 and prevents the body portion i from sliding on the screw coupling. The upper end of the body portion i' is provided'with an annular outwardly extending flange portion ll which is adapted to slidably contact with the inner surface ofa cylinder or tube 4'' which is to the outwardly beveled portion Is on the inner surface of the bubular portion 15 of the valve and provides means which act as the divider block a in the first described nozzle, for forming an annular stream. The member 83 is also provided with a shank or stem 86 which extends from the slotted head 84 centrally through the bulbular portion II downwardly through the bore 14 of the stem 12 of the valve, where it bridges the space between the bars 8! and I! in the screw coupling}? and is threadably mounted at its lower end in a threaded opening I! formed in the c'enterof the bar 80 where it is locked in position on the bar by a nut 00.

To prevent the tube 40 from sliding too far forward on the body portion I suitable spaced stops 8! which are secured to the tube by screws 90 or the like bridge the space between the inner surface of the tube and the outer surface of the body ortion and are adapted to abut against the lower surface of the flange 00 on the upper end of the body portion I. Suitable glands SI for friction packing may be provided on the flange 60 of the body portion I and the flange 6| of the tube 46'.

In the operation of this form of nozzle assuming that the screw coupling l8 has been attached to a fire hose and that the nozzle is in a closed position, upon the turning of the body portion I, which is rotated about the screw coupling I3 and held in a non-slidable position thereon by means of the ring 52, the valve 13 is also caused to turn by means of the blades 8| on the valve en= gaging with the grooves 82 of the body portion, which causes the lower threaded end of the valve stem I2 to turn in the central threaded opening II in the bar 60, thus altering the relative position of the valve and body portion and the screwlike member 83, the relative position of the screwlike member and body portion remaining the same. By this operation the fluid entering the coupling I3 passes into the body portion l' and leaves at the annular outlet 92 of the nozzle. Some of the fluid enters the inlet-ports 80 in the bulbular portion 15 of the valve I8 and leaves at the upper end of the bulbular portion whereby two streams of fluid are produced which leave at the upper end of the nozzle, the stream of fluid flowing through the bulbular portion I and leaving at the outlet 93 thereof is caused to be formed into an inverted hollow conical spray by striking the outwardly curved surface 85 on the head 84 of the screw-like member 83 and the outwardly beveled surface 19formed on the inner surface of the bulbular portion of the valve. The stream of fluid flowing through the outlet 92 of the nozzle between the body portion I and the outer surface of the bulbular portion II of the valve is caused to be formed into a substantially hollow conicalshaped spray by being directed inwardly by the beveled surface 60 on the body portion and the beveled surface 18 of the bulbular portion of the valve. By this construction the two streams of fluidv which have been broken up into two conical shaped sprays are caused to oppose each other which when they attempt to cross each other are further broken up into a fine vapor fllling a conical field. The tube 46' is adapted to be moved longitudinally forward onthe body portion I to reshape the vaporized stream issuing from the nozzle into a straight stream as in the nozzle first disclosed. A considerable suction is set up in the tube 46' which is utilized to suck a chemical solution such as a foam producing agent through the conduit 63 and fitting 64 from the source of supply (not shown) into the chamber 62 formed between the inner surface of the tube and the outer surface of the body portion, and thence through the capillary passages 61 where the chemical solution is mixed with the streams issuing from the nozzle.

It will thus be seen that two separate outlets or apertures 02 and 93 of varying width are caused to be formed at the discharge end of the nozzle, the inner outlet 93 opening somewhat faster than the outer outlet 92 in order to'control the relative quantity of fluid issuing from each.

This is accomplished by beveling the inner surface 19 on the bulbular portion of the valve II at a considerably greater angle from the longitudinal axis of the nozzle than the beveled sur- I field of vapor.

Referring to Figs. 16 and 17, there is illustrated another modified form of nozzle which comprises a body portion 94 in the form of an annular member threaded at 95 for attachment to the forward'end of a conventional shut-off nozzle (not shown) The body portion 84 is closed at its discharge end by an integral wall which is substantially concave in form having a small raised portion 9-! at its center which does not extend above the outer edge of the discharge end of the nozzle, but slightly below the same in order to provide protection for the raised portion 91 and also in order that annular slots and 98 which are formed in the discharge end of the nozzle may be smoothly machined.

The annular slot 98 is formed vertically in the discharge end of the nozzle, closely adjacent to the outer periphery thereof, and extends into the interior of the nozzle and the annular slot 99 is formed adjacent the raised portion 01 at the center of the discharge end of the nozzle and converges into the body portion 04, or in other words the inner end of theannular slot 98 is of less diameter than the outer end thereof, with the sides forming the slot being inclined outwardly so that an annular stream of fluid adapted to issue from the inner annular slot 00 will impinge an annular stream of fluid adapted to issue from the outer annular slot 90 at an angle of not less than 30. The body portion 04 of the nozzle is provided with a plurality of blades I00 which form a spider supporting member which may be cast integrally with the body portion or separate therefrom, as illustrated. The blades I00 which are arranged within the body portion 94 conform to and are equally spaced around the upper end of the body portion.

In order to provide strength to the nozzle illustratedin Figs. 16 and 17 a cast ring IOI which may also be made integral with the body portion. is provided and engages in a slot I02 formed in each of the blades I00, and the upper edge of each of the blades I00 is rovided with a cutout portion I03 which forms acontinuation of the lower end at the

annular slots

98 and 89 in order to remove irregularities in the smoothness of the streams of fluid adapted to be projected through the annular slots. An inwardly extending'flange portion I04 is formed on the interior of the body portion 94 of the nozzle at the inner end of the threads to which the-fire hose 96 is attached, whereby a seat is provided for a gasket I05 to prevent leakage when the nozzle the body portion 94 of the nozzle is provided with a neck portion I06 of a reduced diameter aasaoee which is closed at its upper end by a rounded cap I", the blades I being extended upwardly to engage the cap I01. 'An annular laterally extending slot I08 is formed in the wall of the caused to be projected laterally outward through the annular slot m at the upper end of the body an axial bore mounted on the upper end of said coupling member, a tubular body member adjustably mounted on said valve member, said body member having an exteriorly threadedreduced upper end containing slots and an inwardly curved portion therein adjacent to the discharge end thereof, said valve member includportion and to forcibly collide at I09 with the stream which is caused to be projected upwardly by the vertical annular slot 88 formed adjacent to the outer periphery of the body portion 84' of the nozzle, thus producing an efliuent which completely fills a conical-shaped field.

The areas of the annular slots 88 and 89 of the nozzle disclosed in Figs. 16 and 17 should be such that there is a nearly equal discharge of charge area of each. It will be readily understood that the same principle should be applied to the annular slots 98 and I" disclosed in the form of nozzle or nozzle tip in Figs. 18 and 19.

The forms of nozzles or nozzle tips disclosed in Figs. 16 to 19 inclusive, are not adjustable in any manner, the effect first built into each nozzle or nozzle tip being the only one attainable. This is advantageous because an optimum of operation can be calculated and the nozzle tip constructed accordingly, eliminating the danger of misjudgment in using the wrong adjustment for a desired purpose or effect.

It will thus be seen that there is provided highly novel and useful forms of nozzles, which are well adapted for the purpose designated, even though there has been herein described devices as comprising certain features of constructionand operation of parts, it is nevertheless to be understood that various changes maybe made therein without departing from the spirit or scope of the invention.

Having described'our' invention. what we claim 4 as new and wish to secure by Letters Patent is: l. A vaporizing nozzle comprising a tubular coupling member, a tubular valve member having an axial bore mounted on the upper end of said coupling member, a tubular body member adjustably mounted on said valve member and having slots formed in its upper end and an inwardly curved portion therein adjacent to the discharge end thereof, said valve member including a portion spaced from said body member, lateral passages formed in said portion of said tubular valve member, said valve member having an outwardly curved'bulbular portion arranged to coact with said inwardly curved portion to direct fiuid fiowing therethrough in an inwardly directed annular.

i said slots of said body member.

2. A vaporizing nozzle comprising a tubular,

coupling member, a tubular valve member having ing aportion spaced from said body, member, lateral passages formed in said portion of said tubularvalve member, said valve member having an outwardly curved bulbular portion arranged to coact with said inwardly curved portion to direct fluid flowing therethrough in an inwardly directed annular stream, a divider block including slots mounted on, the discharge end of said body portion and arranged to coact with a stream issuing from the axial bore of the tubular valve member so as to direct the last mentioned stream across the inwardly directed stream, and means for securing said divider block to said body memher, said means including a plurality of flat blades including threaded ends and disposed edgewise to the nozzle, and fitted into said slots of said divider block and; said slots in the threaded end of said body member and means engaging the threaded end of said body member and the threaded ends of said blades to hold said blades in said slots.

3. A vaporizing nozzle comprising a tubular coupling member, a tubular valve member having an axial bore mounted on the upper end of said coupling member, a tubular body member adjustably mounted on said valve member and having an inwardly curved portion therein adjacent to the discharge end thereof, said valve member having an upwardly and outwardly extending bevel surface therein adjacent to the discharge end thereof and including a portion spaced from said body member, lateral passages provided in said portion of said valve member, an outwardly curved bulbular portion on said valvemember arranged to coact with said inwardly curved portion on said body member to direct fluid flowing therebetween in an inwardly directed annular stream, a divider block having conical-shaped portions mounted on the discharge. end of said body member, one of said conical'shaped portions arranged to coact with the outwardly beveled surface of said valve member so as to direct a stream issuing from the valve member across the inwardly directed stream. a fiat surface containing an annular groove formed on the outer end of said bulbular shaped portion of said valve member, whereby the streams issuing from the nozzle will not meet at the edges thereof but in mid air and a cylindrical member adjustably mounted on said body member and-adapted to shape said streams issuing from the nozzle into a straight stream.

4. A vaporizing nozzle comprising a tubular coupling member, a divider member secured by one end to the coupling member, a body member rotatably mounted on said coupling member and having an inwardly extending beveled surface therein adjacentvto thedischarge end thereof, a valve member adjustably mounted on said coupling member-and adapted to be rotated by and to move on said body member to adjust said valve member on said coupling member relative to said body member, an inwardly curved hollow bulbular portion provided on said valve member, said bulbular portion including passages formed therein and having an inwardly extending beveled portion on its outer surface and an outwardly extending beveled portion on its inner valve so as to direct a stream issuing from the bulbular portion across the inwardly directed stream.

5. A vaporizing nozzle comprising a tubular coupling member, a divider member secured to the coupling member, a body member rotatably mounted on said coupling member and having an inwardly extending beveled surface therein adjacent to the discharge end thereof,a valve member adjustably mounted on said coupling member and adapted to be rotated by and to move on said body member to adjust said valve member on said coupling member relative to said body member, an inwardly curved hollow bulbular portion provided on said valve member, said bulbular portion including passages formed therein and having an inwardly beveled portion on its outer surface and an outwardly extending beveled portion on its inner surface, said inwardly extending beveled portion of said bulbular portion arranged to coact with the inwardly extending beveled surface of said body member to direct fluid flowing therethrough in an inwardly directed annular stream, said divider member including a head having a surface portion arranged to coact with said outwardly extending beveled portion on the bulbular portion of said valve so as to direct a stream issuing from the bulbular portion across the inwardly directed stream, and a cylindrical member slidably mounted on said body member and adapted to shape said streams issuing from the nozzle into a straight stream.

6. A vaporizing nozzle comprising a tubular coupling member, a divider member aflixed to the coupling member, a body member rotatably mounted on said coupling member and including an inwardly extending beveled surface therein p 'aaoaeas surface, said inwardly extending beveled portion such as a soap producing agent adapted to be connected with a source of liquid supply, is formed between the inner surface of said cylindrical member and the outer surface of said body member, and a plurality of capillary openings formed in the upper end of said body member, said capillary openings leading from within the discharge end of said nozzle to within said chamber, whereby the liquid chemical in said chamber may be introduced by suction through said capillary openings into said streams of fluid issuing from said nozzle, said cylindrical member adapted to shape said streams issuing from the nozzle into a straight stream.

'7. A vaporizing nozzle comprising a tubular coupling member including supports. a divider member aiflxed atone end to one of said supports, a body member provided with grooves on its inner surface rotatably mounted on said coupling member and including an inwardly extending beveled surface therein adjacent to the discharge end thereof, a valve member adapted to slide on said divider member and adjustably and an outwardly extending flange adjacentto the discharge end thereof, a valve member adjustably mounted on said coupling member and adapted to be rotated by and to move on said body member to adjust said valve member on said coupling member relative to said body member, an inwardly curved hollow bulbular portion provided on said valve member, said bulbular portion including passages formed therein and having an inwardly extending beveled portion on its outer surface and an outwardly extending beveled portion on its inner surface, said inwardly extending beveled portion of said bulbular portion arranged to coact'with the inwardly extending beveled surface of said body member to direct fluid flowing therethrough in an inwardly directed annular stream, said divider member including a head having a surface portion arranged to coact with said outwardly extending beveled portion on the bulbular portion of said valve member so as to direct a stream issuing from said bulbular portion across the inwardly directed stream, a cylindrical member slidably mounted on said body member and having an inwardly extending flange on its lower end engaging the outer surface of said body member, said cylindrical member being of a greater diameter than said body member and adapted to slidably engage the outwardly extending flange of said body member whereby a chamber for a liquid chemical mounted at one end on another of said supports of said coupling member, said valve member having laterally extending blades thereon slidably engaging in the grooves of said body member, whereby said valve member is adapted to be rotated by and to move on said body member to adjust said valve member on said last men-. tioned support relative to said body member, an inwardly curved hollow bulbular portion pro vided on said valve member, said bulbular portion including passages formed therein and having an inwardly extending beveled portion on its outer surface and an outwardly extending beveled portion on its inner surface, said inwardly extending beveled portion of said bulbular portion arranged to coact with the inwardly extending beveled surface of said body member to direct fluid flowing therethrough in an inwardly directed annular stream, and said divider ,member including a head having a surface portion arranged to coact with said outwardly extending beveled portion of the bulbular portion of said valve so as to direct a stream issuing from said bulbular portion across the inwardly directed stream.

K 8. A vaporizing nozzle comprising a tubular coupling member including an upper and lower support, a tubular body member rotatably mounted on said coupling member and including an inwardly extending beveled surface therein adjacent to the discharge end thereof, vertically extending grooves formed on the inner surface of said body member, a valve member including a stem adjustably connected at one end in the uppersupport of said coupling member and laterally extending blades disposed edgewise of said nozzle and adapted to slidably fit into the grooves of said body member, an inwardly curved hollow bulbular portion provided on said valve member, said bulbular portion containing inlet ports and having an inwardly extending beveled portion on its outer surface and an outwardly extending beveled portion on its inner surface, said inwardly extending beveled portion arranged to coact with the inwardly extending beveled surface of said body member to direct fluid flowing therethrough in an inwardly directed annular stream, a central bore formed in the stem of said valve member and extending the entire length of said stem into said bulbular portion, a divider member including a head having a surface portion arranged portion of said valve so as to direct fluid flowing through said bulbular portion across the inwardly directed stream, and a shank provided on said divider member secured at one end to the lower support of said coupling member, said shank extending from the head of said divider member through the bulbular portion of said valve member and through the central bore of the stem of said valve member.

9. A vaporizing nozzle comprising a tubular body member closed at one end by a head, a pair or annular openings formed in said head, said annular openings constructed and arranged on said head to direct two annular streams of fluid so as to impinge one stream on the other at an angle of not less than 30, whereby a single homogeneous conical-shaped fleld of spray is produced by said nozzle.

10. A vaporizing nozzle comprising a tubular body member closed at one end by a head, a plurality of annular openings formed in said head and supporting means engaging said head,

one of said annular openings extending substantially at a 45 angle to said head and other of said annular openings extending substantially in a vertical direction, said first mentioned annular opening adapted to project an annular stream of fluid flowing therethrough directly into collislon with an annular stream of fluid issuing from said second mentioned annular opening, whereby a single homogeneous conical-shaped fleld or spray is produced by said nozzle.

11. A nonadjustable vaporizing nozzle comprising a. tubular body member closed at one end by a head, a plurality of nonadjustable annular openings formed in said head, and supporting means engaging said head, one of said annular openings arranged on said head to project an annular stream of fluid flowing therethrough, directly into collision with an annular stream or fluid flowing through another of said annular openings, whereby a single homogeneous conical-shaped field of spray is produced by said nozzle, one of said annular openings having sub stantially one-half the width than another of said annular openings and adapted to discharge substantially the same amount of fluid as said last mentioned annular opening.

12. A vaporizing nozzle comprising a tubular body member adapted to be attached to a fire hose or the like at one end, a supporting member in said body member, said supporting member having an end extending above the other end of said body member, a cap on said end of the supporting member, said cap coacting with the last mentioned end of said body member to form a laterally extending annular opening, and a substantially vertical extending annular opening formed in, said body member, said first mentioned annular opening adapted to project an annular stream of fluid flowing therethrough directly into collision with an annular stream of fluid issuing from said substantially vertical extending annular opening, whereby a single homogeneous conical-shaped fleld of spray is produced by said nozzle.

13. A vaporizing nozzle comprising a tubular body member adapted to be attached to a flre hose or the like at one end, a supporting member in said body member, said supporting member having an end extending above the other end of said body member, a cap on said end of the supporting member, said cap coacting with the last mentioned end of said body member toform a laterally extending annular opening and a substantially vertical extending annular opening formed in said body member, said first mentioned annular opening adapted to project an annular stream of fluid flowing therethrough directly into collision with an annular stream of fluid issuing from said substantially vertical extending annular opening, whereby a single homogeneous conical-shaped fleld oi spray is produced by said nozzle. one of said annular openings having substantially one-half the width than another or said annular openings and adapted to discharge substantially the same amount of fluid as said last mentioned annular opening.

LESLIE M. BUTTON. HORACE W. DAWSON.