US2444645A - Fluid handling system for automatic cleansing apparatus - Google Patents

Description

July 6, 1948- P. E. GELDHOF ETAL FLUID HANDLING SYSTEM FOR AUTOMATIC CLEANSING APPARATUS 3 Sheets-Sheet 1 Filed Jan. 22, 1945 [fi 2&2?! [gr-' Parse [$414430 62': HoF. Lawns? @M/ame.

P. E. GELDHOF ETA!- FLUID HANDLING SYSTEM FOR AUTOMATIC CLEANSING APPARATUS 3 Sheets-Sheet 2 fi'zyz-zf r PEI-5e [bi A190 622 OHOF LUTHER? .Qm are V 1948 P. E. GELDHOF ETAL 2,444,645

FLUID HANDLING SYSTEM FOR AUTOMATIC CLEANSING APPARATUS Filed Jan. 22, 1945 A 3 Sheets-Sheet 3 WAY VALVE 50L Borrow FLMT hy nfmr Pewtw fbumea @'LD/YOF Lwwme Emma-1 Patented duty 6, t

Um DLING SYSTEM FOR AUTOMATKO CLEANSING APETUS Application January 28, 1945, Serial No. 573,819

Our invention relates to an automatic cleansing apparatus, and more particularly to a suds water recirculatory system for such apparatus for the discharge of suds water after a certain step in the cleansing operation, and for returning the suds water from a temporary storage arrangement to the apparatus at another step in the operation of the automatic cleansing apparatus, and to a hydraulic arrangement for controlling the operation of the recirculatory system.

The present invention is particularly advantageously adapted for use in connection with laundering operations in which the articles to be laundered are subject to a washing operation in an automatic washing, rinsing and drying apparatus in which heated water is employed containing soap and other suitable detergents for the furtherance of the laundering operation. It is highly desirable to save the prepared soapy water Various arrangements have been provided heretofore for the storage of the suds water after the first step in the washing cycle and, for instance, in our patent application Serial No. 523,238, filed February 21, 1944, on an Automatic cleansing apparatus, we have described and claimed an arrangement including a storage tank placed adjacent the fluid container of the washing apparatus with a heating coil in the auxiliary container for maintaining the temperature of the suds water. This arrangement also includes a two-way valve mounted in the base of the washing machine with a hose leading to the auxiliary storage tank and a second hose leading to a drain.- The storage tank is also'provided with an auxiliary pump which is connected to the main fluid container of the washing machine through another hose for. returning the suds water to the main container.

We have also described in our patent application Serial No. 512,580, filed December 2, 1943,

Patent No. 2,391,356, issued December 25, 1945,

- valve and motor electrically and also since the and entitled Drain mechanism," a washing mamachine through a hose for returning the suds water to the washing machine.

We have also described and claimed in our patent'application Serial No. 573,880, filed concurrently herewith entitled Automatic cleansing apparatus," a washing machine with a two-way valve and storage pump mounted outside the washing machineicasing adjacent to a storage tub and drain and connected to the container inside the washing machine casing in which the various steps of the washing, rinsing and drying are carried out through a single hose connection. An arrangement including an automatic time switch is employed for operating the two-way valve and storage motor so that after a first batch ofclothes has been washed the two-way valve will be operated so that the suds water from the main container of the washing machine may be discharged through the two-way valve and storage pump into the storage tub. During rinsing operations, the two-way valve is deenergized so that the rinsing water may be discharged intoa drain. Before the operator commences a second washing cycle of operation, the automatic time switch may be reset so as to operate the two=way valve and storage motor so that the storage motor will pump the suds from the storage tub through the two-way valve and into the container of the washing machine.

'Since it is ordinarily customary to operate a two-way valve and the storage motor are mounted cxteriorly of the main casing of the cleansing apparatus, the operating arrangements for the two-way valve and storage motor are susceptible of being contacted by the operator. It is therefore a general object of our invention to provide an automatic cleansing apparatus with a recirculatory suds system which is so constructed that even though the operator comes in contact with the operating arrangement of the two-way valve and the storage motor with wet hands, there will be no possibility of the operator becoming injured by the source of power which operates the two-way valve and storage motor.

It is a further object of our invention to pro vide an improved automatic cleansing apparatus of the type mentioned above which is efilcient in operation, and which is so constructed as to facilitate the manufacture thereof.

Further objects and advantages of our invention will become apparent from the following description referring to the accompanying drawings, and the features of novelty which characterize our invention will be pointed out with particularity in the claims annexed to and forming a part of this specification.

On the drawings:

Figure iis a plan view of a typical form of an automatic washing, rinsing and drying machine being provided with our improved arrangement for use in the recirculation of suds water;

Figure 2 is a side view partially broken away of the structure of Figure 1;

- Figure 3 is a side view oi the two-way valve and storage pump which is employedin the construction of Figures 1 and 2:

Figure 4 is a top view of the recirculatory system including the two-way valve and storage rotor and the hydraulically operated means for controlling the operation of the valve and motor;

Figure 5 is a diagrammatic representation oi the schedule of operation of our improved cleansing apparatus;

Figure 6 is a diagram of the control circuit for operating our improved cleansing apparatus to produce the schedule illustrated in Figure 5; and

Figure 7 is a view illustrating the control knob and dial 0! the timer switch employed to automatically operate our improved cleansing apparatus.

Referring to Figures 1 and 2 of the drawings, we have illustrated an automatic washing, rinsing and drying machine indicated generally by the reference numeral In. The washing machine Hi includes a cabinet H which includes a top panel i2 in which is disposed a cover B for facilitating the introduction and removal of articles to be laundered in the machine.

A control knob M for the purpose of adjusting and setting a suitable. timing mechanism which directs the operation of the washing machine and the temperature at which the water is introduced into the container II is controlled by the setting of the control knob II which the operator may set at the beginning 01' the washing operation. A motor 22 is mounted in the cabinet ll of "the washing machine and this motor is adapted to actuate'a reciprocating agitator and a rotatable perforated drying basket (not shown) both of which are mounted on the tub 2| through suitable transmission 23 and any suitable driving connection with which is associated .a plurality of automatically operated shifter mechanisms. For a detail description of these features of the automatic washing, rinsing andv drying machine, reference may be had to our above mentioned copending application Serial No. 491,618.

In order to provide an arrangement for removing the water from the container it, it is provided at its base with a port 24 which in turn connects to the intake side of'e, suitable pump 25 through a hose 26. It will be understood that the pump will be operated at the proper time from the motor 22 which is connected to the rotatable impeller of the pump through a belt '21. The outlet of the pump 25 is connected to one end of a suitable hose connection 28, the opposite end of which is connected to an integral two-way valve and auxiliary pump construction indicated generally by the numeral 29. I

As has been brought out above, it is known that it is desirable to save the suds water par ticularly after the first batch of clothes has been a washed so as to conserve both hot water and in the performance of its cycle of operation is I disposed in one corner of the top panel I: of the apparatus. This timer mechanism which may be manually set by the control knob M will be described in further detail in connection with thediagram of Figure 6. The timer mechanism itself is mounted in the cabinet ll directly under the top panel l2. A second control knob by means of which the operator may select the desired temperature of the cleansing fluid which is supplied by a suitable mixer valve l8 which is illustrated in Figures 2 and 4 to be employed in the laundering operation is positioned in another corner of the top panel ii of the cabinet H. The contacts of the control mixer valve will be described in connectionwith the circuit of Figure 6. As will be seen in Figure 4, the mixer valve is connected to pipes I1 and is which may in turn be connected to any suitable'source of hot and cold water (not shown). The mixer valve is also connected through a pipe to a container 2| in which is carried out the various steps of washing, rinsing and drying. It will be understood that the clothes may be inserted or removed from inside the container 2| through the cover l3.

The automatic washing machine [0 is generally of the type described and claimed in detail in our copending application Serial No. 491,618, entitled Automatic washing, rinsing and drying machine," filed June 21, 1943, and reference may be had to this application for a detailed description of the washing machine structure.

As has been mentioned above, the cleansing fluid which is normally water of a desired temperature is introduced through the mixer valve I8 and pipe connection 20 into the container 2| detergents which are included with the suds. In order, therefore, to provide a convenient arrangement for saving the suds after the washing cycle and also to return the suds at the proper time previous to the second washing cycle as well as to provide a simple arrangement for discharging rinse water to a drain, we provide our two-way valve and auxiliary pump construction 29 which is illustrated in further detail in Figures 3 and 4. Since the two-way valve and storage pump is also described in our copending application; Serial No. 573,880, filed concurrently herewith, only a general description thereof will be given below and reference may be had to this last mentioned copending application for a more detaileddescripton of the storage pump and two-way valve. i Referring to Figure 3, the two-way valve includes a casing 30 which has an inlet or first port 3|, a second port or first outlet 32 and a; third port orsecond outlet 33. The two-way valve may be of any suitable construction, it being understood that it is of such a-type that fluid may be selectively discharged ither from one outlet or from the other outlet of the two-way valve. Thus, as described in our copending application referred to immediately above, a suitable arrangement is placed within the two-way valve 50 that when the valve is energized or moved in one position, the fluid will be discharged from the inlet 3| out through the outlet 33 and when the two-way valve is deenergized or moved to another position, the fluid which passes through the inlet port 3! 'will be discharged through the outlet port 32. For a further detail description of the operation of this valve, reference may be had to our copending application, Serial No. 513,138, filed December 6, 1943, Patent No. 2,414,-

mechanism.

Customary facilities in most homes where automemes be seen that when the two-way valve is operated so that the second port .32 is in communication with the intake port 3! that the fluid from the container or the washing machine will'be disto the tub it and into the drain to while, when the two-way valve is energized to te position, the fluid will pass iron the in port at or the two-way valve out through the third port 83 so as to discharge the water into the tub at which has the stopper Id therein so that. the fluid may be saved. It is therefore into this tub that the operator. if he so desires,- may save the suds water merely by inserting the stopper 8% into the drain of the tub 88. It will be understood, of course, that the end of the hose 2a is connected to the intake port at of the two-' way valve as is illustrated in Figures 1 and ;4 so that when the pump it oithe machine is operated, the fluid will be pumped from the container at to the two-way valve and then be discharged either into the drain or into the storage tub.

In order to provide an arrangement for returning the suds water fromthe tub 36 to the washing machine container 2i, we provide a convenient arrangement including an auxiliar pump construction ill which has a port s2 which is tightly bolted to a flange on the third port at of the twoway valve. The pump is of any suitable construction such as having a p rt 65 at its lower end of the tubular housing ti oi the pump with a suitable impeller mechanism (not shown) which is operated through a drive shaft ll which in turn may be operated in a manner as will be described hereinafter.

The pump housing M may be attached to the wall 3? of the stationary tubs in any suitable manner and as will be seen in Figure 3, a bracket construction Ed is attached to the pump housing and includes a screw ti for supporting the bracket on the wall 81.

It will be seen from the above description that with our two-way valve and auxiliary pump connected to the end of a single hose 28. the suds water when the valve is energized may be forced out from the inlet ti oi the two-way valve through the outlet 33 and then through the pump housing d-i into the tub 3t. Also since it is not scribe briefly below an automatic control arrangement tor controlling the operation oi' the pump and two-way valve so that the two-way valve is operated to discharge the suds into the tub 85 and which is also operated to discharge the rinse water into the tub 38 and'into the drain and which also controls the energization of a suitable motor which will be described below for operating the pump ti so as to withdraw the water from the tub l5 and discharge it into the container ii of the washing machine previous to the commencing of the washing of a second batch of clothes.

Hydraulic control as will be illustrated in Figures 1, s and t or the drawings, the two-way valve and storage motor is adapted to be supported remote irom the casing of the cleansing apparatus such as on the stationary tubs and it will be seen that when the two-way valve and storage motor are in this position, they will be susceptible of being contacted is connected through a link mechanism to the ordinarily necessary to save the cooler rinse wa- J ter, the two-way valve may be deenergized-or moved in any other suitable manner so that the rinse water will be discharged irom the inlet 3! of the two-way valve through the outlet 32 to the tub it and into the drain se. Also in any suitable step in the washing operation, such as, at the beginning of the washing of a second batch of clothes, the pump may be energized and thus pump the water from the'tub 35 through the pump and into the third port 33 and out through the port it through the hose connection it and out through the pump 26, which, of course, will be inactive during this cycle of operation and through the port 25 into the container 2!. Any suitable control arrangement may, of course, be

operating members of the two-way valve. -The casing 53 is provided with a port 56 which'connects through.a tube W to a solenoid operated valve 58 as will be seen in Figure 4. The solenoid operated valve in turn connects through a pipe 59 to a pipe id which communicates with a suitable source ofwater pressure such as the normal cold water which is available in an ordinary dwelling. It will therefore be understood that her which will be described hereinafter in reference to Figure 6, water pressure will be conducted through the various pipesto the underside of the piston t6, thus causing it to *raise and causing the two-way valve to operate so that water or suds passing through the two-way valve will be discharged through the pump casing ill to the storage tub t5.

It will be understood that the two-way valve has a suitable biasing spring so that when the force of the water is removed, the water inside the casing 53 will bleed out through a port 8i and the spring will force the two-way valve to its deenergiized position and at the same time lower the piston M in its housing 53. When in the latter position, the two-way valve will be in a position for discharging the rinse water out through the port 82 and into the drain 38.

I In order to provide a hydraulic motor for operating the pump N, we provide a water motor arrangement 62 which includes an impeller or a plurality of blades 63.- The casing of the water motor is connected to a tube 64 which connects to a second solenoid operated valve 58. It will therefore be seen that when the valve 58' is energized, the force of water from the main pipe understood that the wheel 63 is mounted on a employed to operate this auxiliary pump and two- 1 way valve of our invention, and we shall deshaft with the pump 41 so "that this will cause the impeller of the pump to operate and therefore pumpthe water from the storage tank 35 washing machine. A discharge pipe l4 may be provided for the water motor sothat the water which is employed to rotate the \vanes 93 may be discharged into the drain 3'.

With the construction described above by operating the solenoid valves I8 and II, it will be seen that through a hydraulic arrangement, we are able to operate both the two-way valve and pump without using any power such as electricity which will be susceptible of being contacted by the operator particularly when he has damp hands.

It will be understood that the valves II and It for controlling the water pressure for oper'ating the two-way valve and water motor may be operated in any suitable manner, and it will be understood that the two-way valve particularly when mounted inside the casing ii of the cleansing apparatus may be operated electrically through circuits controlled by the automatic timer switch which is usually employed in a cleahsing apparatus of the type in which my suds water recirculatory system may be advantageous ly employed. We shall therefore briefly describe below the control circuit oi Figure 6 in connection with the schedule as is illustratedin Figure 5 which circuit is essentially the same as that described in our copending applicatiom Serial No.

' r 573,880, filed concurrently herewith.

Electrical control circuit The control circuit which is shown in Figure 6 will be described with the aid of the schedule illustrated in Figure 5 for a complete cycle of operation of the cleansing apparatus, and the control circuit will be described particularly in its relation to the operation of the suds water recirculatory system, and for a further detail description of this type of control forcontrolling -the operation of the other steps otthe washing, .rinsing and drying, reference may behad to our above mentioned copending application, Serial No. 491,618.

It will be seen from reference to the schedule in Figure 5 that the washing cycle is commenced by. the introduction of the mixed and hot water through the mixing valve by the operator setting the control knob II. It will be noted from the schedule of Figure 5 that the first two operations are the operation of the two-way valve and storage motor, but, of course, this is on the assumption that the suds have already been placed into the tub 35 or the storage container from a previous cycle of operation, and let us assume for .the present description that the operator is commencing the washing and rinsing for the first time and therefore it is necessary to fill the tub first from the hot and cold water mains through the mixed water and hot water valve,

Referring to Figure 6 oi the drawings, a timer unit indicated generally by the numeral 65 is provided which may be of any suitable type and in the construction illustrated in the drawings, it includes a plurality oi disks numbered 68 through 72, inclusive, which disks are mounted on a timer shaft 13 which is, in turn, rotated by a timer motor 14. It will be seen that ,the knob ll is provided on the opposite end of the shaft which is the knob which extends through the top of the machine as is illustrated in-Figure. 1. Also in Figure 7 is shown the dial which informs the operator where the hand .control II is positioned.

which controls the setting oi the mixing dial i'or controlling the temperature of'the water which is introduced into the apparatus. The water control includes cams l5 and 16 mounted on the cam shaft 11 for operating switches 18 and 19, respectively, and let us assume that the operator has so positioned, the hand control switch that both the switches 18 and." are closed as is illustratedin Figure 6. I

The control 01' the'm'achine' is operated through a source of supply indicated by the numerals and 8| and lt-- will be seen that the source of supply 89 is connected to lines 82 and 83 to the solenoid controls 84 and 85, respectively, which control the operation of the valve. .The circuit for the hot watervalve may then be traced to the switch 18,- a conductor 86 'to identified as the hot water cam. may then be traced to conductors lower contact 90 of a float control switch 8|. It will be understood that the float control switch 9| is placed adjacent the top of the container so that when the float 92is raised by the water the'lower contact 90 of the top float will be opened. It will, of course, be seen that by controlling the water intake through the top float the machine will never be filled to too high a level, assuming the top float switchoperates satisfactorily. The circuit may then be traced through a conductor 93 and 94 through a disk 95 which is a manually controlled switch. The circuit is then connected to the other side of the source of supply .to a. conductor 96. Since all the controls pass from the conductor 96 to the switch 95, it will be seen that whenever the op erator moves the handle outwardly or to-the right as is illustrated in Figure 6, all circuits will be deener'gizedand thus the operator may mechanically move the timer shaft without causing any arcing on any of the automatic timer switches. The mix valve circuit may also be traced from the'mixing valve 85 through the switch 19 and a conductor 91 to a switch 98 which is operated by the-cam I0 and entitled Mix Water. It will be seenthat the remainder of the circuit is similar to that already traced above.

When sufllcient water has been introduced into The circuit the container 2| of the cleansing machine the top float will breakthelower contact circuit and deenergizethe hot and mix valve and will make contact with its upper contact 99 which closes the circuit of the washing machine motor i8 and the timer motor 14. It will be understood that the top float switch is so made that the top contact closes before the bottom contact is opened. These circuits may be traced from one side of the line 80 through the conductor 82, the two motors in parallel to conductors I04 and lill to the top contact 99. The circuit may then becontinued through the conductors 93 and 94 through switch 95"to1 the other side of the line 8i. This will cause the timer motor to operate and rotate the shaft which opens the hot water and mix water switches 81 and 98, respectively, switch IE3 at the end of the washing cycle. The float contacting 'itsupper contact 99 will simultaneously close the circuit for the agitator solenoid and this may be traced from one side of the line Bil through the conductors 82 and 83 to. a solenoid entitled A- on Figure 6, through a--conductor 192 to a switch iil3-which is opera switch 81 which is operated by the cam 88 and which is 88 and 89 to a and agitator ated by the agitator cam Fit. A circuit may then be traced through a conductor ltd to an upper contact itii of the bottom float through the bottom float conductor iti, the top contact of the top float 99 through the top float movable contact arm through the conductor at to the other side of the line 89. The agitator will continue to operate for a suitable length of time, such as twenty minutes as is seen from the schedule in Figure 5.

After the agitator has operated for a suitable length of time, the timer motor will have rotated continue to operate so long asthe extractor switch IN is closed. However, assuming that the the cam shaft it sumciently to open the agitator cam disk contact and close the extractor disk contact marked itili) in Figure 6. Since the agitator disk switch has been opened that particular motor control circuit will be opened, but the extractor switch ltd closes a parallel circuit for the machine motor and time switch motor. Similarly the pump solenoid marked P in Figure 6 is energized and this circuit may be traced from the conductor 83 through the solenoid pump P, conductor W6 which in turn connects to a conductor Hit, and through a conductor IN, the extractor and pump switch lot to the'other side of the line 8i. It will be noted from the cutouts in the cams tit and ii that the two-way valve switch is closed at the same moment that the pump and extractor switch is closed after the washing period. This circuit may be traced from the conductor 83, conductor tilt through the two-way valve solenoid ht, conductor W9 tothe two-way valve switch. The circuit may then be traced through the conductor 96 to the other side of the power line. As has been described above, when thetwoway valve solenoid 58 is operated, water-will be introduced through the various pipes as i's'illus- 'trated in Figure 4 so as to energize the two-way valve and connect the intakeport 3| with the outlet tit. P '9,

In order that the extractor will not operate while there is still water above the bottom-float, it will be seen that the extractor solenoid marked E inFigure 6 is connected from the conductor 83 and a conductor ii i to the bottom contact i it of the bottom float. The circuit may then be traced through the*conductor i M and through the extractor switch and then to the other side of the line. I

After the two-way valve has been energized for two minutes in the schedule as is illustrated in Figure 5, the two-way valve is deenergized since the cam switch of the two-way valve will open the switch. At 'the same time, the timer will close the spray rinse switch it? by having the cam follower drop into the low part on-the cam.

. In timers of the type which are ordinarily manufactured for washing machines and which have operation of a predetermined number of degrees in a steppedmanner, it is ordinarily impractical to have a switch close for less than one minute and since it is desirable to only allow the spray rinse to be on for a relatively short length of time, a mechanical time delay H3 is provided for allowing th spray rinse to only be on for about ten seconds. Thus the circuit for the spra rinse may be traced through the mixing solenoid valve 85 to the lower contact H t of the spray rinse, through the conductor 88 to the bottom contact 90 of the top float 9i and then through the conductor 98 to the other side of the line. At the end of one minute the spray rinse switch will open circuit and the pump will pump has drawn sufilcient water out of the container so as to close the bottom contact on the bottom float, the extractor solenoid E will then operate so as to rotate the rotatable basket.

After the extractor cam switch ltd has been closed for six minutes as will be seen in the schedule of Figure 5, the timer motor will have operated a sufllcient length of time to open the extractor and pump switch )5.

.After the extractor switch is opened, it will be seen from the schedule of Figure 5 that the rinse and agitator cam switches will be closed. By this time the hump on the spray rinse cam ht will have moved under the cam follower of the switch H2 and cause it to close its upper contact and the rinse circuit may be traced in the manner described above in connection with the spray rinse. However, since the cam switch M2 was moved upwardly the mechanical follower will not interfere with this operation. As has been mentioned above, the agitator switch I63 is also closed but since the agitator is connected in series with the top contacts of both the bottom and top floats, the agitator will not begin to operate until the rinse has been operated sufficiently long to fill the tub until both the top contacts of the top and bottom float operate. After the agitator has run for two minutes and it will be seen that this will happen while the cam follower drops into the short valley in the agitator cam, the agitator will be deenergized and at the same time, the extractor will again be energized by closing the switch 105. It will, of course, be understood that during the time the agitator and extractor are operating, th'e motor circuit of" connecting the agitator through both the top contacts of the top and bottom floats the agitator is prevented from being energized byany inductive kick due'to breaking the motor circuit atthe end of the twenty-six minute period.

of the time switch circuits.

It'will be understood that after-the extractor has operated for a period of aboutsix minutes,

the time switch will be forced to move to open the extractor circuit as well as open all'the remainder This will cause the time switch to be completely deenergized and the automatic cleansing machine will not again operate until the time switch is manually reset.

Suds recirculation control It will be recalled from the above that during the previous washing cycle, the suds were passed into the storage tub 35, and assuming that the operator has previously placed the plug 39 over the drain, the operator will now have saved a considerable quantity of suds which may be used aitena second batch of clothes is introduced into the cleansing machine. Referring to Figure 7, the control knob at the conclusion of the flrst complete cycle of operation will be in a position between the extractor and the storage motor portions of. the dial and if the operator desires to return or recirculate the suds back into the container 2!, the control knob will be moved until the pointer is opposite the storage motor portion of the dial. This will cause the movable contact H5 to drop into the cutout portion of the cam it marked storage motor in Figure 6. This will energise the storage pump solenoid motor ll through a conductor I I1, switch ill, conductor- II to the bottom contact ll of the top float and from there the circuit may be traced through the conductor II to the other side oi the source oi. mp9

It will be understood from the description given above that the operation of the solenoid II will cause water to how through the pipes as is illustrated in Figure 4 and rotate the water motor vanes 08 thus causing the storage pump 4| to operate.

After the operator has drained all the water from the storage tub ii, the control knob may again be turned until it is within the range identifled as "washing in the dial of Figure '7. It will'be understood that since all the water is not removed during the flrst extraction cycle, the suds which are returned from the storage will not completely ill] the tub and the remainder will be fllled irom the hot and cold water supply, depending upon the setting of the hand control switch ll. Upon sufllcient water being introduced to raise the top float until it contacts the top contact, the agitator solenoid A will again be energised and the washing cycle will again be repeated in the manner described above.

It will be understood that after the second cycle of washing operations. it the operator desires to dispose of the suds which have been transferred into the tub II, this may be accomplished by mergl'y opening the drain by removing the drain cap It will. of course, be understood that various details of construction may be varied through a container, and solenoid operated valves mounted adiacent said container for controlling the operation oi said hydraulically Operated means said hydraulically operated means including fluid transmitting connections to said solenoidwide range without departing from the principles of this invention and itis, therefore, not the m to limit the patent granted hereon otherwise than necessitated by the scope oi the appended claims.

We claim as our invention:

1. In an automatic cleansing apparatus having a fluid container for the periormance oi as succession oi cleansing operations. said container having an outlet. a hose having an end connected to said outlet, two-way valve and storage pump means adapted for mounting remote from said container and adjacent a reservoir and a drain and adapted to have communication therewith, said two-way valve having an inlet connected to said hose, 0. first outlet in communication with said storage pump and a second outlet positioned to discharge to said drain, hydraulically operated means for operating said two-way valve and storage pump so that when said valve is in one position fluid from said container may pass through said valve inlet and first outlet to the storage pump and reservoir and when in a second position fluid may pass to said drain, said hydraulically operated means operating said storage pump so that fluid may be pumped from the reservoir through said valve and back to said con-. tainer.

2. In an automatic cleansing apparatus having a fluid container for the performance of a succession oi cleansing operations, said container having an outlet, a hose: having an end connected to said outlet, two-way valve and storage pump means adapted for mounting remote from said container and adjacent a reservoir and a drain and adapted to have communication operated valves.

3. In an automatic cleansing apparatus having. a fluid container lot the performance of a succession of cleansing operations, time switch means for controlling the sequence 0! operation of said apparatus, said container having an outlet, a hose having an end connected to said outlet, a two-way valve and storage pump means adapted for mounting remote from said container and adjacent a reservoir and a drain and adapted for communication therewith, said two way valve having an inlet connected to said hose. a flrst outlet in communication with said storage pump and a second outlet positioned to discharge to said drain, hydraulically operated means for operating said two-way valve so that when said valve is in one position fluid from said container may pass through said valve inlet and flrstoutlet to the reservoir and when in a second position fluid may pass to said drain,

hydraulically operated means for operating said storage pump so" that fluid may be pumped from the reservoir through said valve and back to said container, solenoid operated valves mounted ad- ,iacent said container for controlling the operation of said hydraulically operated means, and means including said time switch means for controlling said solenoid operated valves.

4. In an automatic cleansing apparatus hav- 'ing a fluid container, a casing enclosing said contherewith. said two-way valve having an inlet connected to said hose, a first outlet in communication with said storage pump and a second outlet positioned to discharge to said drain, hydraulitainer, said container having an outlet, a hose connected to said outlet, two-way valve and storage pump means adapted for mounting outside said casing and adjacent a storage reservoir and drain and adapted for communication therewith so that said valve and storage pump is susceptible oi being contacted by the operator oi the apparatus, said two-way valve having a flrst port connected to said hose, 8. second port connected to said storage pump, and a third port positioned to discharge to said drain, said valve when. in one position connecting said first port with said third port and when in'a second position connecting said flrst port with said second port, and hydraulically operated means for operating said two-way valve and storage pump so as to minimize the possibility oi. the operator being injured by power for operating said valve and storage pump.

5. In an automatic cleansing apparatus having a fluid container, a casing enclosing said container, said container having an outlet, a hose connected to said outlet, two-way valve and storage pump means adapted for mounting outside said casing and adjacent a storage reservoir and drain 'and adapted for communi-- cation therewith so that said valve and storage pump is susceptible of being contacted by the operator or the apparatus, said two-way valve having a first port connected to said hose, a second port connected to said storage pump, and a third port positioned to discharge to said drain, said valve when in one position connecting said first port with said third port and when in a second position connecting said first port with said second port, and hydraulically operated means for operating said two-way valve and storage pump so as to minimize the possibility of the operator being injured by power for operating said valve and storage pump, and solenoid operated valves mounted within said casing for operating said hydraulically operated means said hydraulically operated means including fluid transmitting connections to said solenoid-operated valves.

6. In an automatic cleansing apparatus having a fluid container, a casing enclosing said container, said container having an outlet, a hose connected to said outlet, two-way valve and storage pump means. adapted for mounting outside said casing and adjacent a storage reservoir and drain and adapted for communication therewith so that said valve and storage pump is susceptible 06! being contacted by the operator of the apparatus, said two-way valve having a first port connected to said hose, a second port connected to said storage pump, and a third port'positioned to discharge to said drain, said valve when in one position connecting said first port with said third port and when in a sec- 20 Number Name Date 622 Wright -s Mar. 3, 1838 780,971 Boekel Jan. 31, 1905 1,355,797 MacIntyre Oct. 12, 1920 1,508,731 Standerwick Sept. 16, 1924 25 1,981,839 Hueber Nov. 20, 1934 2,019,766 Peterson Nov. 5, 1935 2,045,823 Barrow June 30, 1936 2,391,561 Geidhof Dec. 25, 1945 2,414,196 Geldhoi Jan. 14. 194'! ond position connecting said first port with said second port, hydraulically operated means for operating said two-way valve and storage pump so as to minimize the possibility of the operator being injured by power for operating said valve and storage pump, solenoid operated valves mounted within said casing for operating said hydraulically operated means, and pipe means for connecting said solenoid operated valves to said hydraulically operated means and to a source of fluid pressure. j

PEIER EDUARD GELDHOF. LUTHER RINGER.

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

UNITED STATES PATENTS

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