US1876643A - Device for spraying paints, lacquers or other liquids - Google Patents

Description

Sm., @3, w32. A, H DQWNS @876,643

DEVICE FOR SPRAYING PAINTS, LACQUERS, 0R OTHER LIQUIDS Filed Jan. 14, 1927 2 sheets-sheet 1 26, y u j! l# .76% @33251 1M 27 i j@ I A00 v 7% 3657 y 5 l l y// Wv' :57 7! f "9/// 71 V "Il A. H. DOWNS Sept m w32.'

DEVICE FOR SPRAYING PAINTS, LACQUERS, OR OTHER LIQUIDS Filed Jan. 14. 1927 2 Sheets-Sheet 2 Patented Sept. ,13, 1932.

. UNITED .STATES PATENT ori-fica y AUsTIN H. D'oWNs, oF NEWARK, lNEWV JERSEY, AssIGNoaTo EcLIPsE A113l 'nEUsH COMPANY, INC.; or NEWARK, NEW JERSEY, AcoRPoaATIoN or NEW JERSEY r.nEvIcE Foa s-rEAYING PAINTS, LAcaUEEs on. OTHER Lratrms Application led January 14, 1927. Serial No, 161,066. l

This invention relates to improvements in 'devices for spraying paints', lacquers or other liquids, as well a's heavy liquids, semi-pastes,

etc., and while itis designed principally for 5 coating for decoration and protection, has

uses in other arts as well. v

The principal object ofthe inventionl is the provisionof'such a device which is simple and compact in construction fand which may l0 be ,readily assembled and' disassembled yand which is highly eiicient in operation and sim? ply and-readily controlled to use a minimum amount of material and-a minimum amount of pressure to accomplish the best results.

Another object includes the provision of such a device Vin which the trigger operates directly upon the airsupply valve and a liquid material supply valve and in which adjusting means isprovided on the' device for regulat- 9 ing the quantity of flow of air and the pres- -sure of1a1r supplied to the nozzle for atomiz ing purposes. This permits the device to oplerate at low pressure and volumejand with a low consumption of material, while affording perfect atomization of the material and out any disadvantages arising from the operation. i

" Another object is the provision -ofsuch a 3" device in which the entire body including the handle may be made of one piece preferably by die-castingnor forging and in which the operating parts may-'be readily and easily assembled, whereby the manufacture is simplfied and cheapened and `a very attractive appearing and substantial device is provided. Furthermore, all the operating parts are readily accessible.` n l I v Further objects include improvements in details of construction which are hereinafter set'forth in full.

To Ithe .accomplishment of the foregoing and such other objects as.. may hereinafter appear,"thisinvention)consists in the con- J struction, combination-and arrangement ofl the application thereof to the surfaces withparts hereinafter-'described and then sou ht to be defined in theappended claims, re erence being had to the accompanying drawings formlng a part hereof and whichshow, merely for the purposeof illustrative disclosure, a preferred embodiment of my invention, it bezng expressly understood',`however,

Within the scope. of the claims without digressing from my invent-ive idea.y

' In the drawingsthat various changes may be made in practice Figure 1 `is a vertical longitudinal section I taken through a device constructed to em body my invention.

f Figure 2 is a side lelevation of the' same with the liquid cup attached. v

Figure 3 is an exploded view of the various parts comprising the device shown in Fi ure 1, most of these parts being shown 1n section. f .Figure '4 is a vertical transverse cross section through part of the body to show the air control valve. Referring now to the drawings the numeral V1 designates the body of the device as a whole,

this body including the barrel portion 2 and the handle portion 3, the handle portion extending downwardly from the barrel portion and inclined slightly to the rear so that the device 'has somewhat the appearance of an automatic revolver, the handle portion providing a suitable and comfortable grip for the operator.

Devices of this kind are employed to spray "80.

material principally for coating purposes the material usually being fiuid and atomizeflby air under pressure. This material is fed to the :point of atomization by pressure and consequently .the device 'is provided with ports, passages and valves to ether with operating media for controlling t e admission and vpassage vof the pressure fluid as well as the liquid material, and the atomization of the same. A connection 4to a suitable source of air or other fluid pressure ismade with the determined igure by suitable regulating means, as is well understood and practiced in the art. This nipple 5 leads to the port or passage 6 whlch extends upwardly through the interior of the handle 3 to the air inlet valve chamber 7. This valve chamber is formed by boring or drilling a passage horizontally through the lower rear portion of the ,barrel part from the rear end and to and into the space 8 in an intermediate portion thereof. This space 8 is adapted to receive a trigger 9 and permit its operative movement therein. In the forward end of this opening or valve chamber 7 is mounted a bushing 10, which bushing is provided with a longitudinal bore or passage 11 which is enlarged at one end as at 12 to provide an air compartment and which is also formed at this end with the bevelled valve seat 13. A valve 14 is adapted to be seated against said seat 13 and is provided with the plunger or rod`15 slidably mounted in said bore or passage 11 and extending out into the space 8 to be engaged by the trigger 9, as will more fully hereinafter appear. The valve 14 is normally maintained on its'seat by means of the pressure of spring 16 which is positioned about the stud 17 on the end of the valve bearing against the valve shoulder 18-at one end and resting within a socket 19 formed from the inner end of the holding and securing member 20. This member 2O is exteriorly screw-.threaded for a yportion of its length as at 21 to engage the internal screw-threads 22 formed in the air compartment 7 and has the abutment 23 formed to engage'the rear end ofthe barrel portion when screwed home. This member 2O permits the ready assembly and disassembly of the air valve'structure. It is to be noted that the port 6 opens into the air cham- 'bei 7 at the rear side of the valve and that the bushing `10 is provided with a lateral opening 24 leading to the air port or passage 25 formed in the barrel portion 2 and leading forward. It is also tobe noted that the valve plunger or rod 15 has an extended bearing in the bushing 10. The spring 16 normally holds the valve 14 on'its'seat but when the trigger 9 is moved rearwardly it engages the end of the plunger 15 and moves the valve 14 off its seat, permittingv the passage of air from the air inlet vinto the forward leading air port or passage 25. .p l A Y The barrel portion 2 extends forwardly and ina horizontal direction from the handle portion 3 and is provided with an apertured lug or flange 26 to provide a convenient hanging arrangement.. vThe trigger 9 'is pivoted within thebarrel portion as at 27 for a longitudinal swinging movement and the space 8 is in the form of a slot extending from a point neartheupper edge ofI the barrel portion,

down through the barrel portion until it opens through the lower edge of the barrel portion.

Thevbarrel is bored centrally and longitudichamber 28, which extends for a considerable distance from'the rear end thereof, and also to provide a forward compartment 29 which extends 'into the barrel from the front end t0 its junction with the chamber 28. A packing gland or sleeve 30 is mounted within said concaved or bevelled as at 31, which, when assembled in position, is spaced from the shoulder 32, which is formed at the junction between the two chambers or compartments 28 and 29, as the former is of-greater diameter. This space is illed with a suitablepacking ynally to provide the packing gland and spring material which surrounds the liquid valve yrod or stem 33, which passes through an opening 34 in the end 31 of the packing gland or sleeve 30, thus affording a bearing for said valve rod. Near its rearend this valve rod is provided with a pair oI'v spaced shoulders or abutments 35 and 36 which are `circular or annular in shape and are adapted to slidably engage the interior surface of the packing gland or sleeve 30, and .between these spaced shoulders or abutments I provide an elongated slot `or recess 37 adapted to permit the passage of the trigger 9 therethrough.

The packing gland or sleeve is provided on each side with elongated slots or openings 38 with which said elongated slot or recess 37 in the valve stem 33 is in alignment, and which likewise permit the passage of the trigger therethrough. The extreme rear end of the rod 33 is interiorly bored and screw-threaded as at 39, this bore leading entirely through the rear end portion and into the elongated slot or recess 37. This receives the screwthreaded end 40 of the adjusting rod 41 which extends rearward and is. shown asbei-ng hexagonal in shape, 4passing `through a corresponding bore 42 in a knurled adjusting nut or member 43. Of course, it is to be understood that whileI show the adjusting rod 41 as hexagonal in cross section and the bore 42 of the member 43 as of similar cross section, these are merely preferred forms and a slidable connection between these two parts may be alorded in various other ways. In'the claims IJ refer to this rod and bore as polygonal and that is intended to include any form having a plurality of straight sidesjas ,opposed to a circular and rotative engagement.

VThe. sleeve member 44 is' exteriorly screwthreaded as at 45 to `engage the in terior threads 46 formed in the rear end portion of th'echamber or compartment 28. This sleeve member 44 extends into Iengagement with the rear end of theI packing gland and sleeve ymember 30 which is reduced as at 47'to ita complementary reduced portion 48 formed interiorly in-the forward end ofthe sleeve 44. The sleeve 44 having screw-threaded engage- 75 chamber or compartment 28 and has one end asf through the various parts. The nut-mem-` ber 43 has a-stud or projection 49 extending through the opening 50. in the end of sleeve 44 and is provided with the shoulder 51 ,en-

gaging complementary shoulder 52 on the inside of the sleeve 44. The nut member 43 is freely rotatable in the end of sleeve 44. A spring member 53 is positionedabout the adjusting rod 41 and the extreme rear end portion 0f the valve rod 33,engaging the end of the nut member 43 on the'one hand and the rear shoulder or abutmentl 36 of the liquid valve rod on the other hand. This spring, therefore, affords pressure for maintaining the valvel onv thel end of the liquidvalve rod 33 on its seat, as will be presently described. Furthermore, rotation 0f the nut member 43 and the adjusting plunger 41 will vary the distance between the end of the nut membery 43 andthe rear shoulder or abutment 36 and thus vary the tension of the spring 53. The forward' end 54 of the adjusting plunger 41 extends through the rear end portion ofthe liquid valve rod into the elongated slot or recess 37, so as to beengaged directlyby the trigger 9 when pulled or moved rearwardly. Therefore, the adjustment of the adjusting rod 41 will vary the distance the end 54 thereof` projects into the elongated'slot or recess 37 and'determine ythe'time whenv the trigger engages the said end and also vary the length of throw of the liquid controlling valve, it being understood that the relative time 0f opening the air and the liquid control valve andthe amount of opening of these valves are material and important factors in the .operation of this device.

f The forward end of the valve rod' 33v is provided with the tapered r bevelled :valve head 55 and the forward portion ofthevalve rodl is positioned within a liquid material receiving chamber or compartment 56 which is provided in the front sleevel member 57. This front sleeve member 57 has an elongated portion exteriorly screw-threaded as at 58to fit corresponding screw-threads 59 .formed on the inner surface of the bore or passage 29 v formed in the front end portion, of thexbarrel portion 2. The rear end of this sleeve 57 is solid except for a bore or passage 60 through which the liquid valve plunger 33 passes and in which it has a bearing. It is to be noted that this bearing is of considerable extent and with the bearingaiforded by the end 31 of the packing gland or sleeve 30 securely. holds the valve 'rod or plunger ,in proper 'alignment and affords an extended bearing surface of hard and long-wearing material.

rlhe liquid material receiving chamber or compartment 56 communicates with the material supply ,passage 61,' which extends vertically through the downward extension'62.

portions externally screw-threaded as at 63 to afford a connectionfor a hose or pipe leading from a .suitable liquid container or to the This downward extension 62 has its lowerI -70 material cup 64 shown in Figure 2. Surrounding the upper portion of this extension 62 is a vertical annular air passage 65 with which the horizontal yand forwardly extending air passage 25v connects. This vertical annular air passage 65 in turn communicates with the horizontal annular air passage 66 formed'inithe front end of the barrel por-A tion 2v and this lpassage 66 'in turn communicates with the annular air passage 67 formed in the forward or head end 68 of the sleeve member 57. This vpassage 67 is shouldered as at 69. This head end is provided with a plurality of apertures or holes 7 0 leading from the front 4thereof into communication with the forward part of the air passage 67. vThis vhead end is also provided with-the annular shouldered portion 71 which is exteriorly screw-threaded as at-72 to receive) the nozzle holding collar or ring 7 3.V The annular shoulderV 71 provides a reduced forward end portion 74 which is smooth and slidably receives the nozzle member 75. The engaging part of the ,nozzle75f is formed with acylindrical inner surface 76 terminating with an engaging shoulder 77. The nozzle 75 also has an external annular rib or rojection 78 over which anannular fiance 9 on the `lnozzle holding vcollar or'ring 73 engages. Due to the slidable yengagement of the nozzle with the reduced end portion 74 of the sleeve 71 and the locking'eng'agenient of the ange 79 with the flangeor projection 78, the nozzle is ixedly and securely heldin fixed adjustment on thel dischargeend o'f the device asra whole.

The sleeve 71 is internally screw-threaded i as at 80 at the yentrance to`the chamber or 'compartment 56 to receive the screw-threaded extension 81 formed on the rear end of the fluid tip 82. This fluid tip 'is rovided i with the straight shoulder 83 whic tightly engages the forward face of the reduced head' end 68 of the sleeve 57, having the hexagon shaped portion 84 adjacentlthereto for enagement by a wrench or other tool. The

d tip is providedwith a curved `conical f extremital portion 85 leading up to the hexagon shaped portion 84 and on the endhas the cylindrical discharge tip 86 which is reduced from the tapered cnical portion and`v forms the annular shoulder 87. The fluid tip is bored entirely therethrough, the `bore 8 8- through' the forward portion being less inr diameter than the bore 89 through the rear portion. The rear end of the iuid tip Where f the bore 89 opens forms aseat 90 for the` valve 55 or the end'of the valve; rod .33. lt

is seen, therefore, tlat the liquid material passes up through the passage 61 into the chamber 56 and when the valve 55 is moved off its seat 90, the liquid material will pass Athrough the bores 89 and 88 andremer'ge from the end of the fluid tip Within the sage 92 in the front end thereof. This cylind rical passageleads' to a fiat fan shaped or arcuate .slot 93. The cylindrical tube 86 of the fluid tip is positioned within the cylindrical passage 92 of the nozzle. The junction of the cylindrical passage 92 with thefan shaped slot 93, it being understood that the diameter'of the cylindrical passage is greater than the Width of the slot, affords abrupt.

shoulders 94. These shoulders- 94 assistin breaking up the liquid by diverting the direction of fiow of theair and causing the air to undergo a sharp change of direction'and pass into and across the s'treamof liquid from the fluid tip. A

A -very important feature of this invention is the provision of means on the device itself for regulating the pressure and flow of the air or other fluid through the device to the nozzle where it may be readily adjusted and regulated by the operator regardlessof the place of use ofthe device and regardless of the distance of the device from the fluid pres sure container or the liquid container. It includes -a valve or other shut-ofi' medium 95 which has screw-threaded engagement in a screw-*threaded bore 96 extending into the side o f the barrel portion of -the device and across the port vor passage 25, so that by screwing the device entirely down, the port or passage is closed entirely, and by unscrewing the device a greater or less degree, the pressure and the rate of flow of the fluid to the nozzle is varied. The operator is, therefore, enabled to accomplish positive and direct adjustment of the air pressure and rate of flovvr at all times as this valve or shut-off mediump95 is located in the gun and right where the operator is doing the Work. It is, of course, understood i that this adjustment is in addition to the adustment and regulation which may be accomplished by manipulation of the trigger, as of course the amount of movement of the trigger regulates the amount and pressure of the air passing through the air passages.

The, operation-of the device is simple and easily understood. When connected up to a suitable source of air pressure and lwhen the is shown and described in liquid material inlet is connected to a cup or larger container, pressure on the trigger and movement thereof to a suiicient distance results in forcing the air valve off its seat and the passage of air through the various ports Aor passages and out through the nozzle. Further movementpf the trigger results in moving the liquid valve ofi' its seat and the `passage of the liquid (the container being subjected to pressure) through the liquid ports or passages andth-rough the bores 89 and 88 of the fluid tip into the nozzle Where the liquid is atomized by the currents or streams of air engaging the same and passing out through the discharge orifice. When the painting operation is stopped and pressure released from the trigger, the springconstructions will return the trigger' to its normal position and will first shut` the vliquid valvev55 on its seat to prevent the further supply of liquid and then will shut the air valve on its seat after sufficient air has'passed through the device to completely clean the e same and prevent dripping. Y

It is to be noted that the device4 is of unitary construction, as far as-the body of the' same is concerned .and that all the Working parts are mounted and positioned Within the barrel portion'and completely enclosed therein with the exception of the operating portion of the'trigger, which, of course, projects so as to be manipulated by the operator. The valve plungers are positioned horizontally in the barrel and both are directlyengaged by the trigger so that the opening pressure is applied 4directly to them.` The parts may be readily assembled and disassembled. The valves and their seats are readilv accessible for examination and repair and replacement. A fixed adjustment is provided for the nozzle and the adjustable air control valve on the device provides for proper adjustment of the air at all times. The device is comparatively easy and cheap to manufacture and assemble. The bearing surfaces for the movable parts are large and the bearings are composed of hard and long-Wearing material. The air valve assembly andtheliquid valve assembly are separate and are separately accessible and are each composed of a minimum number of parts isha-ft and an adjustin nut having a polygonal'bore fitting said s aft.

2. In combination in a device of the charac` ter described, a body por'tion havinga barv rel portion with a nozzle construction at one, end, liquid supply conduits leading to said the rear end of the' barrelportion for adjusting the position of the valve and plunger, said means including a polygonal shaped shaft and an adjusting nut having a polygonal bore fitting said shaft, with resilient means interposed between said nut and said valve plunger construction. Y

- 3. In combination in a device of the character described, a body portion having a barrel portion with a nozzle construction at one end, liquid supply conduits leading to said nozzle, a liquid controlling valve assembly provided in said barrel portion including a valve having a plunger, bearing means for said plunger, a packing gland construction for said plunger and means extending from the f `rear end ofthe barrel portion for adjusting the position of the valve and plunger, said f valve having a plunger, bearing means for' means including a polygonal shaped shaft and an adjusting nut having a polygonal bore itingisaid shaft, with resilient means interposed between said nut and said valve plunger construction, said shaft having a threaded engagement with said valve plunger construction.

4. In combination in a device of the character described, a body portion having a barrel portion' with a nozzle construction at one end, liquid supply conduits leading to said nozzle, a liquid controlling valve assembly provided in said vbarrel portion including a said plunger, a packing gland lconstruction for said plunger and means lextending'from therear end of the. barrel portion for. adjusting the position of the valve and plunger, sald means including a polygonal shaped shaft and an adjusting n ut having a polygonal bore litting said shaft, with resilient means lter'- posed between said nutand said valve plunger construction, said shaft having a threaded engagement withvsaid valve plunger construction, said valve plunger construction having a slot formed therein, a trigger mounted on said body and passing -through said slot and the e'nd` of said shaft passing in to said slotted portion to'- be engagedfby said /trigger' when operated. 1-

`5. In .combination inY adevice `of the character described having a onefpiece body portion'iformed ,with a handle and with a barrel portion, a nozzle constructionjat one end of said barrel portion, airy and liquidconduits leading through said body portion to said .nozzle `construction, an air control valvq mounted in the air conduits and a liquid control valve assembly adapted to control the' liquid conduit, and means foroperating said valves said liquid control valve including a valve having a plunger having an extended bearing withins'aid barrel portion, a acking gland construction through which sai plunger passes, resilient means for holding the valve closed on its seatand adjustablemeans' adapted to be engaged by saidf operating means whereby the timing and the amount of movement of the liquid valve maybe varied `said adjusting means including a {iat-si rod having a movable ,connection with lthe valve plunger and a flat-sided actuating memj ber having a slidable engagement with said flat-sided rod.

6. In combination in a device of the chard5 acter described having acne-piece body lportion .formed with a handle and with a barrel portion, a nozzle constructionat one end of said barrel portion, air and liquid conduits leading through said body portion' to said nozzle construction, an air control valve mounted infthe air conduits and a liquid control valve assembly adapted to control the liquid conduit, and means for operating said valves, said liquid cont'rol valve incguding a valve having a plunger having an extended bearing Within said barrel portlqn, a packing gland construction through which said plunger passes, resilient means4 for holding the valve closed on its seat and adjustable means adapted tov be engaged by said operating means whereby the timing and the amount of movement of the liquid valve may be varied, said adjusting means including a' flat-sided rod having a movable connection with the valve plunger and a flat-sided actuating member having a slidableengagement with said fiat-sided' rod, said resilient means bearing against prart offsaid valve plunger and a part of said actuating member;

' 7. In a device of the character described uin .combination with the barrel portion hav'- receiving compartment and also provided@ with an extended bearing bore, apaclring y1mi gland sleeve mounted in another portion of said bore and an adjustable sleeve fitting in the rear end of said bore and bearing` against said packing gland sleeve, a valve having a .plunger bearing in saidextended bearing bore and bearing in said packing gland sleeve, and an adjusting member connected to said plunger and having means at the rear of said barrel portion for adjustment purposes. Y

8. In a device ofthe character described in member mounted in the forward end of said barrel portion and formed to provide a liquid receiving compartment and also provided with an extended bearing bore, a packing gland sleeve mounted in another portion of said bore and an adjustable sleeve fitting inV the rear end of said ,bore and bearing against said packing Vgland sleeve, a valve having a plunger bearing in said extended bearing bore and bearing in said packing gland sleeve, and an adjusting member connected to said plunger and having means at the rear of said barrel portion for adjustment purposes, said plunger also having a pair of spaced annular shoulders adapted to have a slidable engagement with the inner surfacelof said packing sleeve.

9. In a device of the character described in combination with the barrel portion having a bore therethrough leading to a nozzle construction, the nozzle construction having air and liquid ports and passages and having a valve seat in the liquid passage, a liquid Vcontrolling valve assembly including a sleeve member mounted in the forward endofl said barrel portion and formed to provide a liquid receiving compartment and also provided with an extended bearing bore, a packing gland sleeve mounted in another portion of said b'ore andan adjustable sleeve fitting in the' rear end of said bore and bearing against said packing gland sleeve, a valve having a Y plunger bearing in said extended bearing bore and bearing in said packing gland sleeve, and an adjusting member connected to said plunger and having means-at thel rear vof said barrel portion for adjustment purposes, said plunger also having a 'pairv of spaced annular shoulders adapted to have a slidableengagement with the inner surface of said packing sleeve, and resilient means interposed between one offsaid shoulders and said adjustment means.

Vl0. In a.- device of the character described 'the rear end of said bore and bearing against saidvpacking gland sleeve, ,a valve having a plunger bearing in said extended bearingV bore and bearing in said packing gland sleeve land an adjusting member connected to said plunger and having means at the rear of said barrel portion for adjustment purposes, said adjusting member including a rod .having a threadedengagement with'4 said valve plunger and said adjustment member having a slidable but non-rotatable connection with said rod.

11. In combination in a device of the character described having a body portion with a barrel portion provided with air and liquid supply conduits extending therethrough, said barrel portion having a bore to receive a liquid valve assembly which includes a valve lhaving a plunger and bearing means for said 12. In combination in a device of the character described havinga body portion with abarrel portion provided with .air and liquid supply conduits extending therethrough, said barrel portion having a bore to receive the liquid valve assembly which includes a valve having a plunger and bearing means for said plunger and operating means for said plunger, a sleeve mounted within the forward end of said bore, said sleeve providing a bearing surface for said plunger and also providing a fluid receiving compartment, a fluid tip mounted in said sleeve and having a bore extending therethrough adapted to communicatelwith said fluid receiving compartment and the valve seatedin the end of said bore, and/ a nozzle constriiction secured'to the forward end of the barrel portion and having -communication with the air conduits, said sleeve being provided with an .external shoul-l Y der' and with an external screw-threaded portion, said nozzle having a part tting againstA said shoulder and also provided with an annular shoulder, a connecting collar having screw-threaded engagement with said screwthreaded portion of the sleeve and having means adapted to engage the annular shoul. I

der on the nozzle to hold the same in fixed engagement relatlve to said sleeve and to said iuld tip. J

13: A device of the character 'described in-l' cludmg, 1n combination, a body portion hav-- lng a barrel portion, said barrelportionabeing bored longitudinally, sleeve members threaded into the bored barrel portion at each end thereof, and a packing gland in said bored barrel portion intermediate said sleeve members and said packing gland being 1loield in position by one of said sleeve memers.

14. In combination, in a device of the character described, a barrel portion having a bore extending therethrough and having a liquid passage and a valve se'at in the .liquid passage, a liquid controlling valve assembly including a sleeve member mounted 1n the forwardend of said barrel portion and formed to provide a. liquid receiving compartment and also Vprovided with an eX- tended bearing bore, a packing gland sleeve mounted in another portion of said boreand an adjustablesleeve fitting in the rear end of said bore and bearing against said packing gland sleeve, a valve for ,said seat andhaving a plunger bearing in'said extended bearing bore and bearing in said packing gland sleeve, and an adjusting member connected to said plunger and having means at `the rear of said barrel portion for adjustmenty purposes.

15 In a device of the character described, in combination with a barrel portion having a bore extending therethrough and having a liquid passage and a valve seat in theliquid passagegea liquid controlling valve assembly including a packing gland sleeve mounted in said bore and an adj'stable sleeve iitting in the rear end of sai bore and bearing against said packing gland sleeve, a valve vfitting in the rear for said seat and having a plunger bearing in said packing ,gland sleeve, and an adjust-` ing member connected to said plunger and having means at the rear of said barrel portion foradjustment urposes, said plunger also having a pair OP spaced annular shoulwith the inner surface of said packingsleeve. y 16. In a -device of the character descr1bed,

= in combination with a barrel portion having rod having a threaded engagement with said valve plunger and said adjustment member having a slidable but non-rotatableyconnection with said rod. c

In testimony that I claim the foregoing, "I have hereunto seti my hand this 27 th day of December, 1926.

' AUSTIN I-I. DOWNS.

j ders adapted td have a slidable engagementV Y a bore extending therethrough and lhaving a liquid passage and a valve seat inthe liquid passage, a liquid controlling valve assembly including a packing gland sleeve mounted in`said bore and an adjustable sleeve end of said bore and bearing against said packing gland sleeve,a valve for said seat and having a plunger bearing in said. acking gland sleeve, and an adjusting inem er connected to said plunger andhaving means at .the rear of said barrel portion for adjustment purposes, said plunger also` having a pair of spaced annular shoulders adapt- -ed to have a slidable engagement with the inner, surface of saidpacking sleeve, and

resilient means interposed between one of said shoulders and saidl adjustment means.

l17. Ina device ofthe character described, infcombination with a barrel portion having a bore extendingtlierethrough and having a including a packing gland sleeve mounted-in4 liqluid passage and a valve seat in the liquid passage, a liquid controlling valve assembly" j.

said,v bore and an adjustable sleeve V/itting in

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