US2606072A - Spray gun - Google Patents

Description

g- 5, 1952 B. w. MANTLE I 2,606,072

SPRAY GUN 2 SHEETS-SHEET 1 Filed Oct. 6, 1949 I If? Venzor' @WMMCW Aug. 5, 1952 B. w. MANTLE 2,606,072

SPRAY GUN Filed Oct. 6, 1949 2 SHEETS-SHEET 2 Patented Aug. 1952 UNITED ,STATES PATENT L 1OFFICE 2,606,072 r I I I SPRAY GUN I Burl-w. Mantle, Pittsford, N. 1c, assignor" to I 4 A American Brake Shoe Company, New York, N. Y., a corporation of Delaware Application October 6, 1949, Serial No. 119,85o

3 Claims.

This invention relatesto spraying devices and more particularly to spray guns of the type adapted to spray two solutions simultaneously.

In certain commercial processes and the like, such as, for example, in the silvering of mirrors, it has been found desirable to simultaneously spray two solutions on a surface to be coated. Various types of spray guns and other similar spraying devices have heretofore been developed for so spraying two solutions. However, the spraying devices heretofore developed for this purpose have had several inherent disadvantages such as, for example, being complicated in construction or operation; being heavy in weight, large in size, and, therefore, difficult to handle; or being impractical and inefficient in operation.

It is a primary object of myinvention to overcome these disadvantages and to afford a novel spray gun of the aforementioned type which is -constructed, and operable, in a novel and expeditious manner. I

Another object of my invention is to enable a spray gun to be constructed by which two coating solutions may be simultaneously sprayed at the desired rate of consumption in a novel and expeditious manner. I I s A further object of myinvention is to so construct a spray gun of the aforementioned type that the parts thereof, and the other mechanism used in conjunction therewith during a spraying operation, may be constitutedand arranged in a novel and expeditious manner whereby the spray gun is easily used and is practical and efficient in operation.

Yet another object of my invention is to construct a spray gun of the aforementioned type in such a manner that the gun may be quickly and readily assembled and disassembled for the purpose of cleaning, repairing, or replacing the various parts thereof.

Many solutions used in processes such as silvering mirrors, and the like, employ solutions which are highly corrosive, and it is an important object of my invention to construct a. novel spray gun in such a manner that, when such solutions are used therein, the corrosive effect of the solutions on the gun is minimized.

An object ancillary to the foregoing is to construct a novelv spray gun of the aforementioned type in such a manner that corrosive materials fed therethrough contact a minimum of metal andpass through only short, straight passagewaysthat may be readily cleaned.

Another object of my invention i to provide I a spray gun embodyinga novel nozzle head constituted and arranged in a novel and expeditious manner wherein compressed air may be fed in a novel manner from a common passageway in the body of the gun simultaneously into two nozzles to thereby afford novel meansfor feeding aspirating air intoand through the two nozzles.

During the operation of spray guns of the type to which my inventionrelat'e's, the guns are customarily connected to the source of fluid supply by flexible rubber hoses and the like, and the proper positioning of thelatter so thatthey do not interfere with the manipulation of the gun during a spraying operation has been a problem. In this connection, it is a further object of my invention to provide a spray gun embodying novel clamping means for supporting the fluid supply hoses in a novel and expeditiousmanner on the gun.

Another object is to constructa spray gun embodying novel clamping means on the rear end portion of the body of the gun which is adapted to hold fluid supply hoses and the like in closefitting'parallel relation to the body of the gun, and which may be quickly and easily attached to, and released from, such hoses in a 'novel'andexpeditious manner. I v

Other and further objects of the present invention will be apparent from the following description and claims and are. illustrated in the accompanying drawings which, by way of illustration, show a preferred embodiment and the principles thereof and what 'I now consider to be the best mode in which I have contemplated applying those principles. Other embodiments of the invention embodying the same or equivalent principles may be used and structural changes may be made as desired by those skilled in-the art without departing from the present invene tion and the purview of the app ded cla In the drawings: I Fig. 1 is a perspective view of a spray gun em? bodying the principles of my invention;

Fig. 2 is a perspective view of a spray gun showing the gun connected to apparatus with which it may be used Fig. 3 is a longitudinal sectional view of the gun shown in Fig. 1; I

Fig. 4 is a front elevational view of the nozzle head embodied in the gun shown in Figs. 1 and 3;

Fig. 5 is a detail'sectional view taken substantially along the line 5--'5 in Fig. 4;

Fig. 6 is a detail sectional view taken substantially along the line 6'B in Fig; 3; and I Y Fig.-6-A is a detail sectional view similar to 3 Fig. 6 but showing the parts disposed in a different position of operation.

The gun 20, shown in Figs. 1 to 6, inclusive, of the accompanying drawings to illustrate a preferred embodiment of my invention, is especially well adapted for simultaneously spraying two solutions on a single surface, such as, for example, spraying a silveringsolution and a precipitating solution simultaneously onto the back surface of a mirror. The gun embodies a body 22 having a handle 24 projecting downwardly from the rear end portion thereof and a nozzle head 26 attached to the front end thereof. The nozzle head 26 comprises two nozzles28 and 29,- mgunt ed in a nozzle plate 3|, Figs. 4 and-5, 'each ,,of the nozzles 28 and 29 comprises a nozzle cap'28a and to normally maintain the valve 54 in engagement with the valve seat 58 on the valve housing 48 and thereby seal the connection between the air chamber 44 and the longitudinal passage 49 in the valve housing 48. The outer, or front, end portion of the push rod 68, Fig. 3, engages a trigger by which the push rod 60 and, therefore, the valve 54 may be moved inwardly to unseat the valve 54 from the valve seat 58 and thereby permit the flow of air from the air chamber 44 into the air passage 49 in the valve housing 54, the trigger 15 being pivotally mounted on the body 22 of the gun. I A second passageway 11, substantially parallel to the air passage 40, is formed in the handle 24 and extends substantially through the entire 29a, and a nozzle body 282) and 29b, respectively. The nozzle head 26 is mounted onthe'f'ront 'eiid" portion of the body 22 of the gun 28 and is'secured thereto by a screw 33 and a bolt 34, the screw 33 e t n n .thr a hthearpe eastwartien f t le matey-as. Yiewed n 51 and being in threaded engag ementwith thebody 2 end the b l 3;! eateg e l i l h e fla e, 3 ee i i 'e i the trea gs r rtien Phe q y nd in d s ased n .Q2 eaa d-enee eme t hth hee l ate 261 99. ns 31 t rm 111 thelewer ne t enthneet. .7

Air nt rs e' j all t r u h ?T e e,..4 the handle 24 and flows tlflroll gh the handle 24, the body "a ut h ei e heeqa le he l' the aspirating 'eifect of the air passingfthrough the nozzles 28 and 29 being eifective to cause solutions tobe dravv'nfromjcdntainers such as bottles A and'B, 'Fig. 2 intothe fluid nozzle bodies 281) and "29b, respctively, and discharged from the air caps or nozzle taps 28a and 29a, as will be discussed in greater detail prese 'u The outer end portion of the air passage 48, in the free end portion 42 'or the handle 24, is tapped to provide.threadsil'itbjwliich asfiitable threaded churning member '46 may be screwed, 3,'to'fattaoh an alrhose'fdrithe like to the gun 20. The air passage extends 1nwardly from the free end portion f42-"of -the'handle and terminat'e's at it's'inn'el' the person m an air inlet valve chamber 44. I

A valve housing 48 hfaving'a longitudinally extending opening '491anda'plurality of transversely extending openings 5| Fig. '3, is screwed into (the valve chamber' 44 wherein "it seats against a shoulder 53 formed therein." An air valve '54 having a recess 56 formed "therein ismountedin the valve chamber44 and lsfpositioned teseat against a valve'seat'58 formed on the inner end portion of the valve housing48 adjacent to the inner mouth-of the air passage 49 "Afpush'ro'd 60, having one end portion disposed in th'erecess 56 of the valve member '54, 'ext'ends forwardly therefrom through a gland plug'6l screwed into the outer end portion of the valve housing '48.

Gland packing 621s positionedbetweenthegland plug BI and an inwardly extending collar 64 in the valve housing 48 to form a seal around the push rod 68 against the leakage of air from the longitudinal passage 49 in the valve housing '48. A collar 65, is loosely disposed on the push rod 60 and is urged against the packing, 65 by a spring 61 mounted between the gland plug 6| and the collar 64, to thereby pressthe packing 55 against the collar 64. A compressionspring 'Hl'having one end portion engaged with'the-outer face of the air valve 54 and the other end portion thereof engaged with the inner surfaoeofthe handle 24 within a recess 12 :formed therein tends .length thereof. The outer end portion of the passage 11 in the handle 24 is tapped to provide threads 18 into which a suitable plug 19 may be screwed to seal this outer end portion of the passageway 11 against the escape of air therefrom. At the point where the passageway 11 intersects the air chamber 44, the valve housing 48 is somewhat reduced in cross section so that a 'spacefBfl is provided between the valve housing 48 and'the side wallsof the 'air chamber "44 and the air passage 11, so that air flowing through the openings 5| may 'flow through the enlarged opening around the valve housing 48 upinto that portionofthe air passage 'lTthei-eabove. v

From the valve housin'g48 the air passage 11 extends onfinto the handle 24 and intersects with another bore 81 formed'transversely through the handle 24. A threaded plug member 85. of the type shown in my co-pending application, Serial Np. 73 4,819 filed March '14, 1947, now Patent-No. 2,559,407; is screwed into the bore 8| and seats against a shoulder 86 formed therein to thereby s'ealtlie passageway 81 against the flow of air longitudinally th'erethrough. A hose clamp 90. Figs. 1, 3 and 6, is mounted'on the outerend portion of the plug-member for supporting the hoses which maybe connected to the nozzle head- 26 as will be presently described in greater detail.

As is best seen in Figs. 1;} and-6, the hose clamp 90 comprises a hose clamp body 92, a retaining membersa and a'lever 96. 'Ihe clamp bo'dy 92 has-acha'nnel-shaped recess "91 formed in -the upper end portion thereof, and an "openi-n'g 99 formed "in the lower en'c'l portion thereof. The' bpening' 99 is of such diameter that -'the plug member 85 'fits relatively snugly therein but may be slipped freely therethrough. Asis best-s'een in-Fig. 3, when theh'oseclamp 96-is disposed in operative position on the plug' '85 on tlie gun "28, the clamp body 92 is uisposea'm abutting relation to the rear-'face'of the :upper end portion-of the handle 24. A collar 10] "having'a plug 1'83 screwed into the free end thereof- 1s screwed onto the plug member '85 and abuts the 'outer faceof the clamp body 92 to thereby -retain' tli'ec1amp body in operative position against 'the' handle 24.

The retaining member 194 of the hose clamp 90, Figs. 1, 3 and 6, has" recesses H16 "formed in the opposite'end portions I thereof, and is 'adap'ted to be mounted in the channel 91 ot the 'cla'mp body 92 with the opposite sidesportions :of the channel 91 disposed in the respectiverecessesfI85. The retaining member! may be formedtbtany suitablematerial, however l-prefer' to construct this member of spring'steelhaving such thickness that it is relatively resilient. -When "the clamp 90 is mounted in operative-;positionon the gun 20, the lever-96 is; attached to the-.gumby suitable means such as a screw I81, Fig. 3,,which extends therethrough and is threadedly engaged withthe plug I09 mounted in the rear end portion of a passageway III which extends longitudinally through the body 22 of the gun 29. A suitable spacing member I I3 is disposed between the lever 92 and the plug I69 to hold the lever 96 in alignment with the retaining member 94 and the clamp body92. I

From the foregoing, it will be seen that, with the retaining member 94 removed from the clamp 96, hoses such as, for example, hoses HI and H2, Figs. 1 and 6, whichmay be connected to the nozzle head 26, may be extended 'rearwardly along the body 22 of the gun 26 and disposed in the channel 91 of the clamp body 92. The retaining member 94 may then be mounted on the clamp body 92 above the hoses HI and H2, by inserting one end of the retaining member .94 into operative engagement with the corresponding side of the channel 91, and then pressing that end downwardly sufiiciently to permit the other end of the retaining member 94 to be moved into position in engagement with the other side of the channel 91. After being so inserted in the channel 91, the retaining member may be released and will then rest relatively lightly on the hoses HI and H2 in the substantially horizontal position shown in Fig. 6, the overhanging lips 91a and 91b being operable to retain the retaining member 94 in such position on the hoses. In this manner, the clamp 96 is efiective to support the hoses HI and H2 on the gun 26 in a novel and expeditious manner.

It will be seen that, when the retaining member is disposed on the hoses HI and H2 .in the position shown in Fig. 6, with the lower end of the lever 96 disposed above, or merely resting lightly on, the upper surface of the retaining member 94, the portions of the hoses HI and H2 extending through the clamp 96 are open so that fluid may flow freely therethrough. -However, the lever 96 is so disposed relative to the clamp body 92, that if it is desired to close the hoses HI and H2, this may be accomplished by swinging the lever 96 into the vertical position shown in Fig. 6-A wherein it is effective to press the retaining member 94 downwardly so as to squeeze the hoses HI and H2 between the retaining member and the lower face of the channel 91 with sufficient force to collapse the side walls of the hoses HI and H2 and thereby close the passages therethrough.

Thus it will be seen that the clamp 96 afiords an eflicient and readily available means for the operator to control the flow of fluid through the hoses HI and H2, the lever 96 being readily available to the operator at all times, even-during an actual operation of the gun 26.

Also, it will be seen that if it is desired to re move, the hoses HI and H2 from the gun 20, they may be quickly and easily released from the clamp 96 by merely swinging the lever 96 around out of engagement with the retaining member 94, and removing the retaining member 94 from the clamp.

At the point where the passageway 'II intersects the bore 8| in the handle 24, the plug member 85 is reduced in cross section so that a space 8Ia is formed between the plug member 85, the side walls of the bore BI, and the air passage 11, so that air may pass through the space 8Ia from that portion of the passageway 11 on one side of the plug member 85 to that portion of the passageway 11 on the other side of the plug member 85.

T From the, plug member 85, the passageway 11 extends-on throughtheiha'ndlefl and intersects with the, passageway III extending longitudinally through, the body 22. of the gun 20. As'previously discussed, a plug member I09 is mounted in the rear end portion of the passageway III to thereby effectively seal that end of the passageway.

The nozzles 28 and 29 of the nozzle head 26, which is mounted on the front face of the body 22 of the gun 29, include nipples 28c and 290 which extend rearwardly through, and are threadedly engaged in, tapped openings 36 and 32, respec tively,i n the nozzle plate 3|, to. thereby afford coupling members to which thehoses HI and H2 may be connected. The forward end portions of the openings 36- and 9,2 are each countersunk-to-afiord two enlarged channels 36a. and 38b, and 32a and ,32b, respectively, in the front face of. the nozzle plate 3]. As is -best seen in Fig. 5, the nozzle'bodies 28b and 29b include flanges 28d and 29d which are disposed forwardly of the nipples 28c and 290, respectively, and, when the nozzle bodies 28b and 29?) are disposed in operative position in the openings 30 and 32, the flanges 28d and 2811 are disposed in the channels 36b and 32b in sealing relation over the front face of the recesses 36a and 321, respectively. Thus it will be seen that inasmuch as the rear faces. of the recesses 30a and 32a are sealed by the nipples 28c and 290, respectively, the recesses or channels 36aand 32a afiord annular passageways inthe plate 26 around the respective nozzle bodies 28b and 2% when the latter ar mounted in operative position in the openings 30 and'32. A bifurcated passageway 5, having a main branch II5a and two smaller branches II5b and H50, Fig.',5, is' formed in the plate 26 with the main branch opening outwardly through the rear face of the plate, in alignment with the front end of the passageway 'I II in the body 22 of the gun, and with the two smaller branches II 5b and H5C'COIl1'l90tin3 the main branch 5a to'the annular passageways 38a and 3211, respectively. Each of the nozzle bodies 28b and 2922 have threeopenings II8a, H81) and H80, and 9a, H92) and 90, respectively, formed therein to afiord passageways connecting the passageways 36a and 32a; with the chambers 28g and 29g-defined by the nozzle body 2811 and the nozzle cap 28a, and the nozzle body 29bqand the nozzle cap 29b, respectively, the passageways II8a-'-'I I80, and II9aII9c being spaced evenly around the longitudinal axis of the respective nozzle bodies. Each'of the nozzle caps 28a. and 29a has a-discharge orifice 28c, 29c, respectively, formed in the'central portion thereof disposed in alignment with the central passageways 28, and 29f in the nozzle bodies I Thus it will be seen that air may be fed from the passageway III' in the-body 22 of the gun 20 into the main branch II5a of the passageway II5, from which it may besimultaneously evenly fed through the'two nozzles 28 and 29. In so passing through the nozzles 28 and '29 it willbe seen that part of'the air flows from the branch 5a through the branch II5b, the passageway 39a, the passageways II8aII8c,.th'e chamber 28g and out the orifice 28c, and the other portion flows from the branch I I5 a through the branch ll5c, thepassageway 32a; the passage: ways II9a'- II9c, the chamber 29g andout the orifice 29c.

. a I Y I The nozzle.v 'caps' 26c and 29d 'are so aeoagoza on the nozzle bodies lflban'd 29b, Fig; 5, that-fluid, such as a sllvering solution and a precipitating solution, may be drawn through the nozzle bodies 28b'and 29b anddischarged'through the orifices 28c and Me by the aspirating eifect of air passing from the passageways ll8'a-l I80 and 1 Ha- H90 through the chambers 28g" and 23g and out the orifices 28 and 291. a

' Operation For the purpose of illustrating the operation of the spray gun shown-rein Figsr-l to 6, inclusive, the spray gun 2ll-isshown as'usedin silvering mirrorsfwhereiaasilvering solution and a; precipitating solution maybe sprayed simultaneous-- ly from thegun onto the-back of a sheet of glass, or mirror, such as theimirror M shown in Fig. 2. In such anoperati'on'; the glass or mirror to be silvered is normally disposed" atan angle of approximately 60 to the horizontal, on a suitable supporting frame suchas the frame F, Fig. 2. The silvering solution and theprecipitating solu-' tion may be mounted in suitable reservoirs such as bottles A and B, respectively, and, these bottlesv are normally mounted on the frame F at substantially the height of the; top of the mirror M. or slightly above; and may be connected to the spray gun nozzles 28' and 29,respectively, by suitable feed lines su'ch'as hoses HI and H2, Fig. 2.

Air may be'fed to the gun 20.from a suitable source of supply, not shown,through a suitable conduit such as a combination filter and pressure regulating device D andya. hose H3, the filter and. pressure regulating device D having an inlet connection I35 which, may beconnected to the source of compressedair, and having an outlet connection I38 to which one end of the hose H3 may be connected, theother end of, the hose being connected to the-coupling member mounted in, the handle214 of thegunzll.

With the gun 20. andother. apparatus, arranged in the manner shown in Fig. 2, and with the lever 96 disposed inthe position. shown in Fig. 6, wherein the hoses Hlan'd- H2 are open, it. will be seen that the mirror- M may be simultaneously coated with asilvering solution and a precipitating solution sprayed from the gun 20. In such an operation, the. operator, while holding the handle 24 ofv thee g unl fl in his hand, depresses the trigger l5 of the gun thereby unseating the valve 54 and permitting airto flow from the source of supply through the filter and pressure regulating device D, the hose H3, the coupling member 46, the passageway in the handle 24, the valve housing 48,- the passageway T1, the passageway III, the branch H5a of the passageway H5, and then simultaneously through the branch I l5b, the passageway 30a, the passageways ll8al I80, the, chamber 289, and the-orifice 28c, and through the branch H50, the passageway 32a,, .the passageways |l9ull9c,- the chamber 29g, and theorifice 29a. The aspirating effect of the air, passing through, thechambers 28g and 29g andlthe orifices 28'e and 29e, causes' the sllverlng solution'and the precipitating solution to flow fromthe bottles A and B; respecttlvely, throughthe hoses 'H l and H2, the passageways 28-1 and 29f in the nozzle bodies 28b and 29b, and outwardly through the orifices 28c and 29a. The nozzles 28' and 29- are disposed at somewhat-0f an angle to each: other so that the solutions thus sprayed therefrom converge a short distance; forwardly: thereof. 1 have found: that 7.5-; posed along the opposite sides of the body memifthe'nozzles 28 and 29 are disposed on the base provided a novel spray gun which is adapted to simultaneously and evenly spray two solutions from separate nozzles, in a novel and expeditious manner. 7 V

Also, it will beseen: that I have provided a novel gun wherein the-hoses by which the working fluid is fed. to the gun, are supported in a noveland expeditious manner thereon;

In addition, it will be seen that my novel gun embodies a novel nozzle head constituted and arranged in a novel and expeditious manner.

Furthermore, it will be seen that I have provided a novel gun which is practical and eificient in operation, is quickly and easily assembled and disassembled for the purposes of cleaning and repairing, and may be readily handled.

Thus, while I? have illustrated and described the preferred embodimentof my invention, it is to be understood-that this is capable of variation and modification and I'therefore do not wish tobe limitedfto the precise details set forth, but desire to avail myself of. such changes and a1- terations as. fall within the purview of the followingclaims.

I claim:

1. In a. spray gunloomprisi'ng a body member formed with an-elongated passageway adapted to communicate witha passageway formed in a handle member mounted at and depending from the rear end portion of thebody member, a plate member. mounted. on the front end of the body member and having a-forwardly disposed face, said-plate'having. two recesses disposed in spaced relationto each other in said forwardly disposed face, two elongated nozzle members mounted in said plate each comprising an elongated nozzle,

body projectingforwardly from said plate and also; comprising a nipple element extending through an associated one of said recesses, each nipple, element being adapted to be connected to a hose for conducting liquids and the rearward face of each nozzle body being disposed in sealing relation around the periphery of the associated recess, each nozzle body and'nipple element having a passageway extending longitudinally therethrough for feeding liquid therethrough, said plate haying passageways in communication with the passageway in the body member and each of the-recesses for-feeding air from the body passagewaysimultaneously to said recesses, each of. said nozzle bodies having a plurality of passageways leading from:- the associated recess and opening atthefrontof the nozzle body, the said plurality of passageways being arranged concentrically about each of the said longitudinally extending passageways, the nozzle members being disposed in the plate in substantial parallel relation 130,171.18 saidbody member, and manually adjustable clamp; means, mounted at the rear endof the body member adapted to regulate the: flow of liquid through the hoses; the clamp means being alignedsubstantially with the nozzle members whereby the hoses may be disher in parallel relation when attached to the nipple elements.

2. In a spray gun of the type embodying an elongated body member having a passageway extending from the rear end forwardly and opening at the front end, and a handle mounted on said rear end and having a passageway therein in communication with the passageway in the body member for feeding air out the said front end, a supporting plate mounted on the said front end and having a passageway in communication with the body passageway, the front face of the plate being formed with a pair of spaced apart and open front recesses each in communication with the plate passageway, a nozzle member mounted on said plate in association with each of the recesses and projecting forwardly of the plate, each nozzle member including a nipple element to which a hose may be attached, an elongated passageway extending through each nozzle member whereby liquids in the hoses may be sprayed from the forward ends of the nozzle members, each nozzle member including an annular flange disposed in sealing relation with respect to the open front of the associated recess in the plate, at least two passageways formed in each nozzle member on opposite sides of the said elongated passageway therein and leading from the associated recess to aspirate liquids sprayable from the front of the nozzles, the nozzle members being disposed in the plate in substantial parallel relation to the said body member, and manually adjustable clamp means mounted at the rear end of the body member, and being aligned substantially with the nozzle members whereby the hoses may be disposed along opposite sides of the body in parallel relation when attached to the nipple elements, the clamp means including a fixed element and an element movable relative to the fixed element whereby the flow of liquids in the hoses may be regulated when the hoses are disposed between the said fixed and movable elements.

3. In a spray gun of elongated body member having a front and rear end and having a passageway extending from said rear end forwardly through said front end, and a handle mounted on said rear end and having a pasageway therein in communication with said passageway in said body member for feeding air into said first mentioned passageway, a supporting plate having parallel front and rear faces and being mounted on said body member with said rear face in engagement with said front end of said body member, said plate having a bi- H furcated passageway extending therethrough with the common end of said passageway opening through said rear face into conm'lunication with said passageway in said body member and each of the bifurcated ends of said passageway termithe type embodying an 1G nating in a respective recess in said front face of said plate, two nozzle bodies mounted on said plate and projecting forwardly therefrom, each of said nozzle bodies comprising an elongated coupling'member and an annular flange projecting laterally therefrom, each of said nozzles being disposed on said plate in a manner whereby said coupling members extend rearwardly and outwardly of said rear face of said plate, said flanges being disposed in sealing engagement with said front face of said plate adjacent the peripheral edge portions of said recesses to afford annular passageways around a portion of each of said coupling members, each of said nozzle bodies having an elongated passageway extending therethrough for feeding fluid forwardly through said coupling member thereof and discharging the fluid forwardly from said nozzle body, said elongated passageways in said nozzles being disposed in a forwardly converging angle relative to each other, two nozzle caps, each of said nozzle caps being mounted on the forwardly disposed portion of a respective one of said nozzle bodies and having a substantially conical shaped portion extending forwardly of said nozzle body in spaced relation thereto to afford a chamber therebetween, each of said nozzle caps having an orifice formed in said conical shaped portion forwardly of, in alignment with, said passageway in said respective nozzle head, said orifice being in communication with the atmosphere and said chamber, each of said nozzles having a plurality of therein in communication with said respective one of s id recesses and said chamber to aspirate liquids dischargeable from said nozzles, and clamp means at the rear of the body member for clamping hoses connectable to the ends of the coupling members projecting rearwardly of the plate, the clamp means being aligned with the coupling members and the coui ling members being aligned horizontally with the body member whereby the hoses may be disposed along the sides of the body member in parallel relation, the clamp means including elements for regulating the flow of liquid in the hoses.

' BURR W. MANTLE.

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

UNITED STATES PATENTS Number Name Date 1,325,225 Grady Sept. 29, 1931 2,255,189 Robinson et al Sept. 9, 1941 2,265,209 Thompson Dec. 9, 1941 2,356,865 Mason Aug. 29, 19% 2,380, 32? Downs July 31, 1945

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