US2078670A - Dishwashing machine - Google Patents

Description

3 Sheets-Sheet l April 27, 1937. J. B KIRBY DISHWASHING MACHINE Filed July 24, 1951 James B Kix-b I N L/M% April 27, 1937. J B l Y 2,078,670

DISHWASHING MACHINE Filed July 24, 1951 3 Sheets-Sheet 2 James B- Rise b3 1 I AT To Quar y April 1937- J. B. KIRBY 2,078,670

DISHWASHING MACHINE Filed July 24, 1951 3 Sheets-Sheet I5 IIIIIIIII v I. k d 25 Big-1]. i a 5/ 76 T If J mas Bdiirbg B ATTo 7 Patented Apr. 27, 1937 UNITED STATES PATENT OFFICE Claims.

This invention relates to dishwashing machines and has for its object the provision of a device of this character of extreme simplicity and cheapness and containing a minimum ofmovable parts, operable with the smallest possible amount of liquid and exhibiting a minimum of danger of clogging or obstruction; the provision of a device of this character which can be more easily kept clean than other devices and whereby the dishes can be washed and rinsed with the smallest number of manipulations; while further objects and advantages of the invention will become apparent as the description proceeds.

In the drawings accompanying and forming a part of this application I have shown for illustrative purposes a preferred embodiment of my inventive idea although it will-be understood that these drawings are intended to be merely illustrative of the general principles of my invention rather than exhaustive of their practical application.

,Fig. l is a vertical longitudinal sectional view through the center of a machine containing my improvements, corresponding to the line i-l 25 of Fig. 2; Figs. 2, 3, and 4 are cross sectional views corresponding to the lines 2-2, 3-2, and l4 respectively of Fig. l and looking in the direction of the arrows; Fig. 5 is a horizontal sectional view on the line 5-5 of Figs. 2 and 3; 3 Fig. 6 is a perspective view of the pump and valve fitting; Fig. 'i is a vertical sectional view through the soap dispenser and control valve and pump corresponding to the line I-I of Fig. 8; Figs. 8 and 9 are horizontal sectional views corresponding to the line &8 of Fig. 7 and showing the valve in diflerent positions; Fig. 10 is a perspective view of the machine in position for use; and Fig. 11 shows the same machine in storage.

The casing of my improved dishwashing machine preferably assumes a cylindrical form as shown in Figs. 1, 2, 10, and 11 and is made in two parts, namely: a body part I provided with radial legs 2-2 by which it may be supported with its axis substantially horizontal as shown in Fig. 10 and a cover-part 3 hinged thereto at I transversely along the side opposite the legs, the two parts meeting along a plane ind cated at 5 which is inclined to the vertical. As a result, when the cover 3 is raised the entire interior of the casing is thrown open to ready inspection and manipulation and certain advantages of air circulation are secured as hereinafter described; and besides the body-part of the casing is rendered liquid-retaining up to the level where the cover engages the same. A suitable handle 6 is provided for manipulating the coverpart and the margins of the cover-part are caused to fit inside the margins of the body-part as shown at I, in liquid-shedding relation.

5 Located inside this casing parallel to but spaced from the upright ends thereof, are two horizontal supports lli|tl adapted to receive in sliding relation the terminal supporting projections ll-li of the dish basket l2. Each support in here consists of a piece of piping braced at its forward and rearward ends to the curved portion of the body-part I. while the basket may be formed in any suitable or desired manner so long as it rests suitably on these supports and is spaced from the two ends of the casing. The top of the basket projects suiilciently above or across the plane 5 to enable ready insertion and removal of said basket.

Projecting centrally inwardly from one endwall of the casing is a fixed stud Ii, and secured to the interior of the opposite wall oi the casing is a transmission housing It having a hollow socket l'l coaxial with said stud. One form of this transmission housing is shown in Figs. 1, 3. and 5 and comprises a vertical sleeve-portion I! having bearing-bushings lQ-ll in which are journaled the vertical shaft 2, provided between said bearings with a worm 2i and having at its upper and lower ends the driving-pulley 22 and centrifugal pump-impeller 23 respectively. Formed at one side of this sleeve is a hollow enlarged chamber 24 in which is located a wormgear 25 meshing with the worm 2i, and itself journaled on a fixed stud 28 mounted in a boss 21 at the rear of the chamber. Carried by and rotatable with this wheel 26 is a pinion 28 meshing with a gear 29 carried by a horizontal shaft 30 which is journaled in a bearing ll parallel to and spaced from the socket l'i. This socket I1 is formed in a horizontal projection 22 located near the sleeve ll, but having no communication therewith, the interior of the socket I'I communicating with a depending pipe-connection 28 parallel to the sleeve it. In the present embodiment the bearing 3| and projection 32 are supported by having their extremities seated in hollow bosses 24-35 formed on a. metal plate 36 which is fastened to the casing and itself carries in addition the electric-motor 21 having a driv ing-pulley 38 connected to the pulley 22 by a belt 39. The face of the gear 25 is covered by a removable plate 40. 1

Journaled in the socket I1 is a hollow connecting fitting ll having liquid-circulation-ports 42 carried by the inner end of the shaft 3|].

in its wall adapted to communicate in all positions with the neck 38. Inside the casing this fltting is formed with an enlarged flange 43, having thereon a wrist-pin 44 connected by a pitman 45 with an eccentric pin 46 on a disk 41 The radius of movement of the pin 44 being greater than that of the pin 46, rotation of the shaft 20 produces a slow rotation of the shaft 30 and a corresponding oscillation of the flange 43.

The mouth .i the fitting 4| inside the casing is flared as at 50 for the reception of the tapered end of a connection 5| to which is attached a hollow pipe 52, here shown as rectangular in cross section, and mounted for oscillation between one support l and the end of the casing. Carried by each end of this pipe 52 is a horizontal spraypipe 53, formed on its side facing the basket with a number of liquid discharge apertures. The opposite ends of the pipes 53 are carried by a brace 54 which is pivoted on the stud l5. One of the pipes 53 is located above, and the other below the basket, the bottom of the latter being spaced from the casing wall sufiiciently to enable movement of the pipe beneath the same throughout the necessary range. A hollow threaded sleeve 56 carried by the fitting 4|, and provided with a head 51 overlapping the pipe 52 enables the connection to be held in this fitting with a predetermined degree of friction, sumclent to enable the flange 43 to effect the movement of the parts while permitting stoppage of the same in case of any obstruction. An axial screw 58 extending through the sleeve, and detachably mounted in the transmission housing enables ready removal of the spray-pipes whenever desired.

The lower end of the shaft 20 is Journaled in a vertical bearing 60 rigid with the axial boss SI of a pump-casing 82 which surrounds the pumpimpeller 23 heretofore mentioned. At one side of the boss 6| the top of the pump-casing is formed with an upwardly-facing outlet-port G3 which is connected by means of a vertical pipe 64 with the pipe-connection 33 heretofore mentioned. The bottom-face of this pump-casing is covered by a plate 65 having therein a port 66 opposite the center of the impeller 23 and communicating by means of a horizontal passageway 61 with one port 68 of a valve-casing whose remaining walls are formed with an opposite port 39 and two intermediate ports and II (see Figs. 7, 8, and 9). Extending from this valvecasing at one side, and communicating with the port It! is a flaring conduit 12 which terminates in an arcuate flange 13 secured to the bottom of the casing l, in register with an outlet-opening I4 therein (see Figs. 1 and 2). The opposite port 1| communicates with a hollow chamber formed in an enlargement 16, the top of which is formed (see Fig. 6) with an upright hollow boss 'I'I in which is pivotally mounted the pipe-elbow 18 which communicates by means 0! a telescoping-coupling 19 with a funnel 80.

Port 69 of this valve discharges into chute 3| which slants away from the machine so that when the machine is set on the drain-board 82 of the usual kitchen-sink 83, the chute 8| will overhang the sink, while the funnel 80 underlies or is capable of underlying the hot-water-faucet 84 with which such sink is ordinarily provided. The lower end of the valve-casing heretofore described is preferably made entirely open as shown at 85 (see Figs. 3 and 7) so that in the absence of the valve-member any liquid in the machine has a clear channel of escape through the chute.

Rotatably seated in this valve-casing is a frustoconical valve member 86 of turning-plug type, provided with a handle 81, by which it may be turned and having its top formed with a tapering socket 88 in which is removably mounted the tapered neck 89 of a soap receptacle 90. This valve-member is formed with two horizontal passages BI and 92, respectively, separated by a partition 93 which is deflected so as to establish communication between the socket B8 and the channel 92; and furthermore the mouth of this channel 92 ispreferably provided, along a surface which is substantially coincident with the exterior of the valve member, with a screencloth guard 94 as shown in Figs. 7, 8, and 9. Suitable stops are provided (not shown) whereby the movement of this valve is confined to an approximate 90 are indicated in full and dotted lines in Fig. 4, in one of which positions the port ill communicates with port 69 and port II with port 68; while in the opposite .position the port Ill communicates with port 68, and port H with port 69. The chute BI is swiveled to the valve casing to enable it to be turned in any direction desired.

The operation of the device is as follows:

The machine having been located as illustrated in Fig. 10 and the cover-part 3 raised as shown in dotted lines, a basketful of soiled dishes is introduced, the cover closed, and the motor started. The valve-handle B1 is then placed in the position shown in Figs. 4 and 8 (signified by the word Rinse"), the funnel 8|] being thereby placed in communication with the inlet 66 of the pump, and the outlet-opening l4 communieating directly with the chute 8| through the ports 10 and 89. Hot-water is then introduced into the funnel 8B, which is thrown violently against the dishes through the jet apertures of the pipes 53, while those pipes are very slowly advanced and retracted past the dishes, thus loosening all excepting such accretions as are hardened and dried in place, melting and washing away the greater part of the fatty and greasy substances, and delivering all the same, together with all crumbs and scraps, freely into the sink (where a strainer can well be placed to receive the same) without any such circulation of this liquid inside the machine as would tend to induce clogging or obstruction.

After the dishes have been well rinsed, and heated in this way, the valve handle 81 is moved to the position shown in dotted lines in Figs. 4 and 9, (indicated by the word Wash) thereby establishing communication between ports HI and 68 on the one hand, and ports H and 69 on the other hand. As a result, the liquid thereby caught in the tank is retained and continues to circulate, and the operator should at this time actuate the soap dispenser to deliver to this liquid a charge of saponiiying material from the container 90. Any liquid now introduced into the funnel Bil merely runs to waste. It is possible, by turning the valve slowly, to increase somewhat the amount of liquid trapped inside the casing and thus available for the washing process; but in general it is found that, as soon as the dishes have been well rinsed and heated, better washing results are secured by the use of a. rather small quantity of well heated liquid, well supplied with soap, and preserved from dilution by the addition of more liquid, than in case a larger amount of liquid be employed. As a matter of fact, after the grease has been removed by the rinsing, very little soap is required and the amount of liquid necessary to the operation of the machine is within the capacity of a. good sized teakettle in case piped hot water is not available.

In the valve-position shown in Fig. 8 the screen 94 has little or no function. In the position shown in Fig. 9 it serves to prevent or at least impede scraps and crumbs from finding their way from the outlet to the pump and thence to the spray pipes. If at any time the machine should become clogged by accumulation of crumbs in the conduit 12 it is merely necessary to lift the valve and soap-dispenser bodily from the valve seat (as shown by dotted lines at Fig. 3) whereupon the contents of the outlet are discharged directly into the sink. The exterior of this screen can be flushed off at the faucet, added liquid introduced (the valve being first turned brlefly'to rinsing position) and the washing function recommenced. As soon as the washing has proceeded for a few minutes (and a very brief time is required if the preliminary rinsing has been well done) the valve is again turned to rinsing position, and more hot water introduced into the funnel for rinsing purposes. It is a good practice always between these two procedures to remove the valve and wash oil the exterior of the screen with the faucet to diminish the amount of crumbs which might otherwise be carried into the spray pipes, although the turning of the valve will itself scrape off the greater part of such accumulations.

At the completion of the rinsing the water is turned off, the motor stopped, and the cover 3 opened. If the number of dishes to be washed is sufficiently great a second basketful may be introduced and the operation repeated, the first basketful being left to dry; in the case of a small family, for which a washing machine is most important, a single basket will oftentimes be found sufl'icient for the whole accumulation, and the same can be left inside the casing where the dishes will dry readily, owing to the heat of dishes and casing and to the peculiar slant of the working opening which when the cover is open, enables free ingress and egress of air due to convection currents. The interior of the casing will be found sufficiently cleansed by the washing action so that no wiping is required: and no precaution towards drainage is necessary excepting to lift the valve off its seat to enable the pump and casing to discharge their contents into the chute 8|.

The bottom of the base part i is slanted towards the outlet sufficiently for drainage purposes; and the bottom of the lower spray-pipe 53 is formed with a drainage aperture HM sufficient to enable gradual discharge of liquid therefrom while the machine is idle without such loss of liquid as shall impair the operation of the machine.

The particular soap-dispenser illustrated in Fig. '7 comprises an upright container having in its lid a slidably mounted vertical rod 96 provided at its top with an operating button 91 and at its bottom with a stopper 9B which closes from below the outlet-aperture of said container. Inside this container I have shown a stirrer 99 consisting of fingers projecting from a hub which is movable along a sharply slanted spiral ill!) with which said rod is formed. This rod is normally maintained at its uppermost position by means of a spring illl, but whenever it is d epressed the stopper 98 is displaced from its seat. and the stirrer rotated by the effect of the spiral,

thereby breaking up the contents of the container and ejecting a portion of the same into the duct 92. Liquid soap can be used in the same container if the stopper 9! be made of suitable material such as rubber. Indeed the entire container can be omitted and merely the neck 89 left, provided that its upper extremity projects above the liquid level, which is itself very low since only a little liquid is ever contained inside the casing. The necessary soap can then be supplied directly to this neck by means of a spoon from the original package.

It will be observed that no mixing of rinse water and wash-water can possibly occur, since the opening of the valve necessary to enable the introduction of rinse water itself discharges the wash-water into the sink, and only rinse-wateris delivered to the pump. This machine exhibits numerous additional practical advantages, among which are the fact that the entire mechanical and rotating elements are carried by a single transmission housing thereby enabling the necessary machining to be effected with minimum expense; the fact that no packing or leakage-preventing joints of any kind are employed, the vertical mounting of the impeller shaft in its surrounding sleeve preventing overflow of liquid without necessitating any packing glands at this point (although it is possible to provide overflow apertures I02 if desired to guarantee any excessive amount of liquid from so raising the level so as to inundate the transmission housing) and no packing glands are necessary between the socket I1 and fitting 4|, since their joint is located inside the casing where leakage is unimportant; the fact that the pump, valve, and transmission elements are very small and inexpensive to make; the fact that the machine as a whole is very light and inexpensive; and that when not in use it can readily be stood on end in the closet as shown in Fig. 11, that end of, the body part I which is opposite the mechanism being preferably provided with a carrying handle I03 for the purpose.

It will be understood of course that a great many changes in design, appearance, construction, and relation of parts can be made without departing from the scope of my invention and while I have described in detail a preferred embodiment of my improvements I do not limit myself to any of the details illustrated and described excepting as the same are specifically recited in my several claims which I desire may be construed, each independently of limitations contained in other claims.

Having thus described my invention what I claim is:

l. A portable dishwashing machine for use in connection with a kitchen sink having a drainboard, water supply faucets and a drain pipe connected to the sink, said machine comprising a casing, standards for supporting said casing on the sink drainboard, a dish basket located in said casing and extending substantially from side to side thereof, horizontal spray-pipes above and below said basket, respectively and having jet-apertures turned toward said basket, powermeans for causing said pipes to move slowly toand-fro relative to the contents of said basket,

said casing having an outlet in its lowermost part and itself adapted to catch and deliver to said outlet the efiiucnt from said jet-apertures, a centrifugal pump having an inlet and also an outlet which is connected to said spray-pipes, means of substantially negligible liquid capacity connecting said casing outlet to the pump inlet, means including said last named means for conveying water from the sink faucets to the pump inlet, and means for controlling the gravity discharge of liquid from said casing outlet to the sink.

2. In a dishwashing machine, in combination, a casing having upright end-walls and curving side-walls, a pipe pivoted inside one end-wall upon a horizontal axis, said pipe being transverse to said axis, horizontal spray-pipes carried at opposite ends of said first pipe and having jetapertures in their confronting sides, a support inside said casing spaced from its bottom and from said one end wall, a dish basket removably carried by said support and located between said spray pipes, means for supplying liquid under pressure to said spray pipes and means for moving said spray pipes, alternately back and forth relative to said basket, the side of said casing having a working opening of greater length and width than the width and depth of said basket for the ready removal or replacement of the basket, said opening being defined between lips in the side wall of the casing which are located respectively above and below the top of said basket. rearwardly and forwardly of the center thereof whereby the top part of the casing may be opened to the atmosphere for the free egress of steam from the interior of the casing, said pipe moving means including mechanism having a frictional driving connection whereby said pipes may be manually moved independently of such mechanism to a non-obstructing position with respect to said dish basket at such times as when it is intended to remove such basket.

3, In a portable dishwashing machine for use in connection with a kitchen sink having a drainboard, water faucets and a drain pipe, in combination, a casing adapted to collect liquid having standards for supporting the same on the sink drainboard and having a discharge outlet for the gravity discharge of liquid into the sink, a spray-pipe inside said casing, means inside said casing for holding dishes in position to be sprayed by the jets from said spraypipe, a pump having its outlet communicating with said spray-pipe, a liquid receiving element for the gravity conveyance of water from the sink faucets to said pump, a liquid discharging element connected to the discharge outlet of and projecting from said casing in position to discharge water into the sink, and manually operable valve-means interposed between the discharge outlet of said casing and said pump-inlet and said discharging element, adapted in one position to connect said liquid-receiving element to the pump-inlet and to connect said discharge-outlet to said discharging-element, and in another position to connect said discharge-outlet to the pump-inlet in liquid circulating relation.

4. In a portable dishwashing machine for use in connection with a kitchen sink having a drainboard, water faucets and a drain pipe, in combination, a casing adapted to collect liquid having standards for supporting the same on the sink drainboard and having an upper inlet and a lower discharge outlet therefrom for the gravity discharge oi liquid into the sink, a liquid receiving element supplied with water from the sink faucets, a liquid discharging element extending from the discharge outlet of said casing to a point above the sink, a pump having an inlet and an outlet, said pump outlet communicating with said casing inlet, and manually operable fluid control means interposed between said casing discharge outlet and said discharging element and said pump-inlet having two alternative positions namely, one position wherein said casing discharge outlet ls connected directly to said discharging element and said receiving element communicates directly with the pump-inlet, and another posltion wherein said casing discharge-outlet is connected to said pump-inlet.

5. In a dishwashing machine, a casing having a liquid-inlet and a discharge outlet, a liquid-receiving element at one side of said casing, a pump having its outlet communicating with said liquid-inlet, valve means comprising a ported housing and a hollow operating member for connecting the pump-inlet either to said liquid-receiving element or to said discharge-outlet, selectively, and means communicating with the interior of said hollow valve operating member for introducing a water-soluble cleaning compound into the circulating-liquid at the point where it passes through said housing.

6. In a portable dlshwashing machine adapted for use on the drain board of a kitchen sink, a casing having a liquid-inlet and a discharge outlet, an open-topped liquid-receiving element adapted to be supplied with water from the sink faucets, a pump having its outlet communicating with said liquid inlet, and manually operable valve means for connecting the pump-inlet either to said liquid-receiving element or to said discharge outlet, selectively, said valve means including a ported valve member of the turning-plug type, having an operating handle and also having means associated therewith for the introduction of a water-soluble cleaning compound into said I valve member for mixture with the liquid as it passes through said valve means.

7. In a dishwashing machine, in combination, a casing having a discharge-opening, liquid spraying means inside said casing, a second casing having a frusto-conical recess therein, open at its top side and formed with ports with one of which said opening communicates, a pump having an inlet communicating with another of said ports and also having an outlet connected to said spraying means, and a movable, hollow, frusto-conical member received in said recess in a readily removable manner and having a part of its surface of screen cloth which at times is presented to said first named port, and said second casing communicating directly with a discharging element for the reception of the contents of said discharge opening whenever said frusto-conical member is unseated.

8. In a portable dishwasher adapted for use on the drainboard of a kitchen sink, a casing having a liquid-inlet, discharge-outlet means for the gravity discharge of water from the casing to the sink, means inside said casing for supporting dishes in a position to be contacted by the liquid, 9, liquid-receiving element outside said casing comprising a funnel and an associated conduit for conveying water from the sink faucets to said casing, a motor-driven pump having its outlet communicating with said liquid-inlet to introduce liquid into said casing, means for establishing communication between the pump-inlet and said liquid-receiving element .or said liquid-receiving element and said discharge-outlet means selectively, and for enabling unobstructed discharge from said discharge-outlet when said liquid-receiving element is connected to said pump-inlet.

9. In a dishwashing machine, the combination with a circulating liquid system including pumpof the above numbered patent requiring correction as follows:

ing means and conduit means for continuously using a small supply of liquid in the dishwashing operation, of a valve comprising a ported casing open at its top side and having an inlet and a plurality of outlet openings interposed in said con duit means in communicating relation therewith, and a removable control element in said casing having a liquid passageway therein adapted to be moved into and out of register with the ports of said casing, said control element also having screening means across said passageway for filtering at times the liquid passing through said valve, one of the outlet openings of said casing discharging directly into a waste place in the absence of said control element.

10. In a portable dishwashing machine adapted for use on the drainboard of a kitchen sink, a casing having supporting standards and an outlet arranged for the gravity discharge of liquid into the sink, control means for the outlet of said casing, means for supporting dishes to be washed inside said casing, means for throwing liquid upon said dishes, and an element for receiving water from the sink faucets adapted to be placed 3 in communication with the casing interior during the time that said discharge outlet is unobstructed, said element comprising an adjustable tube and a communicating funnel and said control means including a single member for cutting off said receiving element and dischargeoutlet and thereby entrapping in said casing a quantity of liquid which is thereafter thrown repeatedly upon said dishes by said liquid throwing means.

11. In a dishwashing machine, a casing, a spraying device in said casing supplied with liquid from a body of detergent liquid carried by the easing for washing dishes in the casing, pumping means for forcing liquid from the casing through the spraying device, said liquid being used over and over again in the aforesaid operation, said casing having a liquid outlet or drain opening in its lowermost part, and valve means comprising a ported valve body open at its top side and a readily removable valve member with screened and unobstructed passageways received in the top opening of said valve body, the ports of said valve body communicating, one with the spraying device, another with the drain opening of said casing and a third with the atmosphere, said valve member being adapted in one position for effecting communication between the casing drain and the spraying device while at the same time filtering the liquid passing therethrough and being adapted in another position to provide for free and unobstructed flow of liquid from said drain opening by way of the port in the valve body of said valve means which is open to the atmosphere.

JAMES B. KIRBY.

CERTIFICATE OF CORRECTION.

atent No. 2,078,670.

April 27, 1957.

JAMES B. KIRBY.

It is hereby certified that error appears in the printed specification Page 4,

first column, line 18, claim 2, strike out the "comma" after "pipes" and insert the same after "pipes" in line l7, of said claim; and line 67, claim 4, after "outlet" insert spaced; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 1st day of June, A. D. 1937.

(Seal) Henry Van Arsdale Acting Commissioner of Patents.

of the above numbered patent requiring correction as follows:

ing means and conduit means for continuously using a small supply of liquid in the dishwashing operation, of a valve comprising a ported casing open at its top side and having an inlet and a plurality of outlet openings interposed in said con duit means in communicating relation therewith, and a removable control element in said casing having a liquid passageway therein adapted to be moved into and out of register with the ports of said casing, said control element also having screening means across said passageway for filtering at times the liquid passing through said valve, one of the outlet openings of said casing discharging directly into a waste place in the absence of said control element.

10. In a portable dishwashing machine adapted for use on the drainboard of a kitchen sink, a casing having supporting standards and an outlet arranged for the gravity discharge of liquid into the sink, control means for the outlet of said casing, means for supporting dishes to be washed inside said casing, means for throwing liquid upon said dishes, and an element for receiving water from the sink faucets adapted to be placed 3 in communication with the casing interior during the time that said discharge outlet is unobstructed, said element comprising an adjustable tube and a communicating funnel and said control means including a single member for cutting off said receiving element and dischargeoutlet and thereby entrapping in said casing a quantity of liquid which is thereafter thrown repeatedly upon said dishes by said liquid throwing means.

11. In a dishwashing machine, a casing, a spraying device in said casing supplied with liquid from a body of detergent liquid carried by the easing for washing dishes in the casing, pumping means for forcing liquid from the casing through the spraying device, said liquid being used over and over again in the aforesaid operation, said casing having a liquid outlet or drain opening in its lowermost part, and valve means comprising a ported valve body open at its top side and a readily removable valve member with screened and unobstructed passageways received in the top opening of said valve body, the ports of said valve body communicating, one with the spraying device, another with the drain opening of said casing and a third with the atmosphere, said valve member being adapted in one position for effecting communication between the casing drain and the spraying device while at the same time filtering the liquid passing therethrough and being adapted in another position to provide for free and unobstructed flow of liquid from said drain opening by way of the port in the valve body of said valve means which is open to the atmosphere.

JAMES B. KIRBY.

CERTIFICATE OF CORRECTION.

atent No. 2,078,670.

April 27, 1957.

JAMES B. KIRBY.

It is hereby certified that error appears in the printed specification Page 4,

first column, line 18, claim 2, strike out the "comma" after "pipes" and insert the same after "pipes" in line l7, of said claim; and line 67, claim 4, after "outlet" insert spaced; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 1st day of June, A. D. 1937.

(Seal) Henry Van Arsdale Acting Commissioner of Patents.

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