US2561119A

US2561119A - Automatic laundry machine of the squeezer type

Info

Publication number: US2561119A
Application number: US661225A
Authority: US
Inventors: John F Horvath
Original assignee: Appliance Corp of America
Current assignee: Appliance Corp of America
Priority date: 1946-04-11
Filing date: 1946-04-11
Publication date: 1951-07-17
Anticipated expiration: 1968-07-17

Description

1951 J. F. HORVATH 2,561,119

AUTOMATIC LAUNDRY momma OF THE SQUEEZER TYPE Filed April 11, 1946 a Sheets-Sheet 1 IN VEN TOR.

Jahn E'Horvuth ATTORNEYS July 17, 1951 HORVATH 2,561,119

AUTOMATIC LAUNDRY MACHINE OF THE SQUEEZER TYPE Filed April 11, 1946 s Sheets-Sheet 2 It 45 70 23 V l K65 I 3 44 m9 [49 83 13/ 22 43 Z i :3 A 30 y 74 5 5 56 57 IZZ 97 a 58 I25 87 ""59 I INVENTOR.

Jahn f. Harvath M AAW AT TORNE Y5 July 17, 1951 J. F. HORVATH AUTOMATIC LAUNDRY MACHINE OF THE SQUEEZER TYPE Filed April 11, 1946 3 Sheets-Sheet 3 I I Q Patented July 17, 1951 UNITED STATES PATENT orrics MTQIQEFINE OF THE John F. Horvatli, Milwaukee, Wis., assignor to Appliance Corporation of America, Milwaukee,

Win, a corporation of W Application April 11, 1946, Serial No. 661,225

The present invention relates to a laundry apparatus, and more particularly to a laundry machine, which will automatically wash, rinse and dry textile materials.

The invention is adapted for use in a laundry machine of the type disclosed in my co-pending application, Serial No. 637,964, flled December 29, 1945, now abandoned, in which the washing and rinsing fluids are extracted or squeezed from the textiles by means of a diaphragm operated by fluid pressure but may be used with automatic washing machines of other types and kinds.

An object of the present invention is to provide an automatic machine in which the washing and rinsing operations are controlled by a timing apparatus which is rendered inoperative during the squeezing operation, and the length of the squeezing or extracting operation is determined by the fluid pressure behind the diaphragm. When the squeezing or extracting operation is governed by a timing apparatus, the amount of water extracted or squeezed from the clothes will vary with the water pressure in the main with which the machine is connected. An object of the invention, therefore, is to provide a machine wherein the pressure for the extraction or squeezeing of cleaning fluid and rinsing fluid from the clothes is uniform.

Another object of the invention is to provide a timing apparatus which operates the various parts of the machine electrically.

Another object of the invention is to provide a novel conduit system for the ilow of cleaning and pressure fluids to and from the cleaning fluid containeror tub. Another object is to provide a novel conduit system in-which an ejector is used to drain the laundry machine.

Another object of the invention is to provide an automatic laundry machine and a timing apparatus therefor which are of simple and inexpensive construction and have a minimum number of moving parts.

Other objects will become readily apparent from the following detailed description taken in connection with the accompanying drawings illustrating a preferred form of the invention, where- Fig. l is a vertical sectional view of a laundry machine embodying the invention.

Fig. 2 is a diagrammatic representation of the operative parts of the apparatu showing the hydraulic and electrical circuits and timing mechanism.

Fig. 3 is a'view similar to Fig. 2 of an alternate construction.

2 While the invention is susceptible of embodiment in various forms, there is shown in the drawings and herein described in detail a preferred form with the understanding that it is to be considered as an exemplification of the principles of the invention. The scope of the invention will be pointed out in the appended claims.

In the drawings, and particularly in Figs. 1 and 2, the invention is embodied in a household type washing and extracting apparatus or machine comprising a generally cylindrical housing having a top part 26 and a bottom part 2|, a partition 22 extending horizontally across the housing to divide it into an upper compartment 23 and a lower compartment 26, a lid 25 for an opening 26 in the top of the upper compartment and a somewhat circular base member 21 secured to the bottom of the housing. A generally spherical containe r 26 is positioned in the compartment 23 and is supported for oscillation about an upright axis by means of a member 29 secured to the upper end of a drive shaft 20 which is supported in a bearing If in the partition 22 and a bearing 32 secured to the base member 21.

The container 26, as illustrated herein, consists of a lower substantially hemispherical part 36 and an upper part 36, provided with an opening II. A closure or cover 38 for the opening 31 has its peripheral edge 39 located within the part 36 and is movably supported thereon by means of a pivot 40. The cover 38 is perforated by a plurality ofapertures ll and is located immediately below the lid 26 of the housing. The cover may be swung about-the pivot 40 to an open position, giving access to the container for the purpose of inserting and withdrawing clothes or other materials when the lid 25 is open. A handle 42 on the cover serves also to close a safety switch 43 by engaging an operating member 44 thereof when the cover is moved to its closed position as will be understood in my copending application referred to above. This switch, as hereinafter more fully described, is in the main control circuit for the driving'motor of the apparatus and prevents operation thereof, except when the cover 38 is closed. a 4

Internally the container 28 has a pair of ribs 45 extending inwardly from the lower part 35 against the inner surface of the lower part 05 and snugly over the ribs 45. The flexible member or diaphragm 41 is substantially bowl shaped, may be of rubber or other suitable material, and is provided with an outwardly extending flange 41a which is secured intermediate radially extending flanges on the

container parts

35 and 36, respectively. This flange is securely clamped between the flanges by means of an annular clamp ing ring 50.

In the form of the invention disclosed herein, the container 20 is arranged to be oscillated at a relatively slow speed continuously tthroughout washing, extracting and rinsing operations. To this end the shaft 30 carries a crank 55, the free end of which is connected by means of a link 56 to a crank 51 on a vertical drive shaft 50. The shaft 58 extends from a gear type speed reducer 59 supported on one end of an electric motor 60. Thus, during rotation of the motor continuously in one direction, the crank 51 is rotated by the shaft 58 and during such rotary movement operates through the link 56 to oscillate the shaft 30 and container 28 through an angle of approximately 90. In order to insure smooth operation, a spacing member BI is preferably provided between the

shafts

30 and 58, the spacing member carrying bearings surrounding each of said shafts and operating to maintain a constant distance therebetween.

During a, washing operation the flexible member 41 is in the position illustrated in Fig. 1 and the container is partly filled with water, a detergent and the clothes or other materials to be washed. Upon completion of the washing operation and while the container continues to be oscillated, the flexible member 41 is forced upwardl by admitting water or other liquid under pressure to the space between the bottom of the container and the flexible member. Herein a connection 65 (Fig. l) is shown for admitting water to the bottom of the container and below the member 41. As the member 41 moves upwardly, the washing liquid is discharged through the apertures 4I in the cover 38 until finally the clothes are pressed against the cover and top part of the container. As the pressure of the liquid in the bottom of the container is increased, the liquid in the clothes is extracted or expressed out of them and forced out through the apertures 4|. To insure substantially complete drainage, the upwardly extending lip 66 around the opening 31 is provided with discharge apertures I.

In order to facilitate filling the container with water or other liquid, an arcuately bent pipe I is provided with a plurality of spaced connections with the top part of the container. This pipe is connected to a flexible hose I5 which extends to a supply pipe I6 to which the other end of the hose is connected. This hose connection permits the container to be oscillated with a, minimum amount of movement of the hose. Similarly, a hose 11 extends from the connection 65 around the major portion of the housing to a pipe III. The pipe 16 is arranged to conduct hot water to the hose I5 for washing purposes and cold water for rinsing. The pipe I9 is connected to provide water under pressure to the space beneath the flexible member 41 during an extracting operation and to drain water therefrom upon the completion of an extracting operation.

An external connection 80 is provided for hot water, a connection 00a for cold water and a con nection 82 for a drain. The drain connection 02 is connected by a pipe 02 to the discharge port of a drain pump 05 which is supported on the motor i0 and is suitably driven thereby. The inlet to the drain pump is connected by a pipe I to a drain valve 80. A pipe 89 from the pipe 04 leads to a drain opening 90 in the partition 22. Thus, any liquid spilling into the chamber 23 of the housing is continuously pumped out through the pipes 89 and It to the pipe 03.

From the cold water connection, water passes through a pipe 9I to a rinse valve 92. A pipe 93 branches from the pipe 9| to a mixing valve 94. A pipe 95 also branches from the pipe 9| and extends to a valve M from which a pipe 84 extends to the inlet of a high pressure water pump 96, which is supported on the casing of the drain pump and is also driven continuously by the motor 60. The pipe I8 is connected to a diverting valve 81 which is connected with the outlet of the pump 96 by a, pipe 14. A pipe 91 branches from the pipe 18 and leads to a pressure relief valve 98 having a spring pressed plunger 90a. A pipe 99 leads from the valve 99 to the pipe 86 and drain pump 85. A pipe I00 branches from the pipe 99 and leads to the diverting valve 81.

Hot water passes from the connection 80 through a pipe I02 to the mixing valve 94, the mixing valve being provided with a manual control handle I03, which is adjustable to determine the relative amount of hot and cold water issuing from the mixing valve to the pipe IS. The handle, as shown in Fig. l, operates the valve through gears I04, I05, I06 and I01. The pipe 16 is also connected to the rinsing valve 92 by branch pipe I08.

The casing lid 25 is adapted, when closed, to close a safety switch I09 which, like switch 43, is in the main control circuit for the driving motor and prevents operation thereof when the lid 25 is open.

A control mechanism is provided for governing automatically the operation of the machine after an initial manual starting operation. The automatic control includes a series of cams III), III, H2 and III, all mounted on a single shaft II5, driven by means of a timer motor H6 through a speed reducer unit I" mounted thereon. A manual means comprising a shaft III! operated by a handle I I9 on the casing is also provided for rotating the shaft II5 through suitable gearing means I20.

Referring particularly to Fig. 2, the electrical circuits consist of supply lines I2I and I2I' connected to a suitable source of power. Line I2 I is grounded and line I2I leads to the outer door switch I09 which in turn is connected by a wire I22 to the container door switch 43 which is connected by a wire I23 to the various switches operated by the cams IIO to II: inclusive. A wire I24 connects wire I23 to one side of a switch I25 operated by the tub drain valve cam H0. The other side of this switch is connected by a wire I26 to one terminal of a solenoid I21 (operating drain valve 00) the other terminal of which is grounded. The wire I2: is also connected by a wire I20 to a switch I29 operated by the motor cam III. The switch I29 is connected by a wire I30 to one terminal of the motor 60, the other terminal or which is connected to ground by a wire I3I. The motor supply wire I30 is connccted to the timer motor by a primary and secondary circuit. A wire I92 leads from wire I30 to one contact of a switch I33 (operated by the pressure pump supply valve cam H3) and wires I34 and I05 connect the other contact of the switch to one terminal of the timer motor, the

other terminal of which is connected to ground. This is the primary circuit. The secondary circiut leads from wire I32 by wire I36 to one contact of a switch I31 on the pressure relief valve plunger 98a, the other contact of which is connected by a wire I38 to the wire I35 leading to the timer motor.

Wire I23 connects with a wire I39 which leads to one contact of a swtich I40 (operated by the rinse valve cam II2) the other contact of which is connected by a wire I to one terminal of a solenoid I42 on the rinse valve, the other terminal of the solenoid being grounded. Wire I23 also is connected to one contact of a switch I44 (operated by the pressure pump supply valve and diverting valve cam II3) the other contact of which is connected by wires I45 and I48 to one terminal of a solenoid In (of the pressure pump supply valve 8|) the other terminal of which is connected to ground. Wire I45 is also connected to a wire I48 which leads to one terminal of a solenoid I49 on the diverting valve 81, the other terminal of which is connected to ground.

In operation, the container 28 is filled with clothes and other materials to be washed and the handle I03 is turned to operate the mixing valve 94 to supply the container with the desired amount of hot water. Thereupon, soap or other detergent is added, and the container door 38 and the casing door 25- are closed. At this time, the cams are in the positions shown in Fig. 2 of the drawing, the switches I25, I29, I40 and I44 all being open. The operator thereupon turns the manual control handle II9 so as to rotate the shaft H andthe cams IIO to H3 inclusive in a clockwise direction and the cam follower I50 on the motor cam switch I29 is forced out of the depression -I5I in the cam III which closes the switch and energizes the main motor 60 and the timer motor IIB, the latter motor being connected through its primary circuit to the motor supply wire I30.

The machine is now in the washing portion of its cycle and oscillates the material in the container to wash the clothes. The container, however, oscillates and the two pumps are driven, during'the entire cycle of operations. The timer motor rotates the shaft II5 for a predetermined time until the clothes are thoroughly washed, whereupon the projection I52 on the cam II3 engages the follower I53 on the switch I44 and close the switch to start the first extraction period of the cycle. This energizes the solenoid I" to raise the plunger in the pressure pump supply valve 8i to direct a supply of water to the r' pressure pump 98 and at the same time opens the switch I33 on this valve whereby to break the primary circuit to the timer motor. The solenoid I49 on the diverting valve is sirnultaneously energized and the valve connects pipes I4 and 18 to permit the pressure pump to force water into the container underneath the diaphragm. The diaphragm is forced upwardly by this water pressure, flowing the water off the top of the clothes and then forcing the clothes against the container cover 38 and squeezing or extracting the cleaning fluid out of the clothes. The fluid flows into the compartment 23 in the upper part of the casing and through the drain opening 90,

pipes

89 and 88 to the drain pump which pumps it through pipe 83 to the drain.

After the pressure under the diaphragm has reached a predetermined amount, such as 150 pounds, the piston 98a in the pressure valve 98 is raised and some of the water from the pressure pump is routed to drain through the pipe 99, thus slowing up the raising of the piston and maintaining the pressure in the container at substantially the maximum desired pressure for a short period. When fully extended, the piston 98a closes the switch I31 in the timer motor secondary circuit, starting the timer motor which rotates cam II3 until projection I52 passes the cam follower I53, thereby de-energizing solenoids I41 and I49 so as to shut off the supply of water to the pressure pump and the lower part of the container and return the diverting valve to the position shown in the drawings, whereby to drain the container through pipes I8 and I00. The primary circuit to the timer motor is then closed by the lowering of switch I33 and this circuit is thus re-established, the secondary circuit being opened shortly thereafter by the lowering of the switch I31 and piston 98a due to the decrease in pressure against the pressure relief valve 98.

Next in the cycle of operations the rinse valve cam I I2 is rotated sufficiently so that the projection I54 on this cam strikes against and raises the follower I55 on the switch I to close the switch and energize the solenoid I42 to open the rinse valve 92, permitting the flow of cold water to the upper part of the container. The rinse operation continues for a predetermined time determined by the arcuate length of cam projection I54, during which rinse water is continually supplied to the container to give a novel rinsing action. The rinse water is discharged into the upper portion of the container and over the clothes in substantially large volume and aids in returning the flexible member 41 to its normal position. Here again, the oscillating motion of the container continues, with the result that the clothes are agitated in the rinse water. To effect a highly improved rinsing of the clothes and at the same time permit the use of cold water therefor, the rinse water continues to flow into the container until the entire container is filled and thereafter keeps on flowing into the container during the agitated rinsing operation while surplus rinse water overflows through the apertures M in the cover 38 and carries away additional foreign matter principally soap which remained in the clothes after the extracting operation. As a result, substantially all of the soap is removed from the clothes and carried away with the overflow rinse water before the extracting operation commences.

At the end of the rinsing action, the projection I58 on the cam II3 closes the switch I44 and the extraction operation described above is repeated. A short time before the second extraction or squeezing period is terminated, cam IIO has rotated sufliciently so that the projection I51 on it raises the cam follower I58 on the switch I25 to close the switch and thereby energize the solenoid I2! and close the drain valve 88. This eliminates the possibility of the drain pump drawing air from the tub rather than extracting water from below the diaphragm. At the end of the second extraction period, the projection I51 passes the cam follower I58 to open the drain valve 88 (the part of the container underneath the diaphragm now being completely emptied) and completely drains out the water extracted from the container into the container compartment 23. Thereupon, the cam follower I in the switch I29 to the motor falls into the depression I5I in the cam III, opening the switch I29 and stopping the motors.

While the container oscillates at exactly the same speed, about 72 oscillations per minute. during both the washing and rinsing operations, nevertheless the action of the fluid on the material being treated is quite diflerent during the two operations. This results irom the diiierence in the amount of fluid in the container during these operations. For the washing operation less than suflicient water to float the material freely should be introduced into the container. Approximately one gallon oi washing fluid to each pound oi dry material has been found to be satisfactory for this purpose, the material being rather loosely massed in this proportion of cleaning fluid. when the container oscillates with this load of washing fluid and material, a violent action occurs in the container; the material and fluid at the end each oscillation strike the ribs and are tossed upwardly in the container. This causes considerable rubbing or flexing oi the mass oi material against the ribs and when the material drops down against the wall of the container, hence all the material is given a washing action each time the mass strikes the ribs. The material, however, is not wadded together so as to become entangled and, inasmuch as the material is forced upwardly and then falls downwardly, a diflerent portion oi the mass will strike the ribs'at the end oi the next oscillation.

When, however, the rinsing action commences, the rinse water completely fills the tub and causes the material to float loosely in the water. As a result, there is very little rubbing action, but the soapy water is floated out of the material by the agitation of the water, forming a scum on the top of the water which flows out through the opening in the top of the container. Moreover, the water and material are circulated sufliciently in the container so that different pieces of the material gradually move from the top to the bottom of the container and back again. As a result, no scum or soap suds will be caught or trapped underneath any of the material and all of this soap will flow out of the container by the time the rinsing period is concluded and none will be deposited on the material. In the particular construtcion here shown, it is impossible to operate the machine when either the cotainer door or the casing door is open. The operator may at any time during the operation of the machine open the doors to stop the operation of the machine ii it is desired to add clothes, soap or water. It is also possible by means or the manual control handle II! to cut down the length of any operation. The handle H9 is mounted for effecting movement oi the cam shaft Iii in only a forward direction, for example by ratchet means as shown in my said copendlng application 637,964, now abandoned.

The alternate construction shown in Fig. 3 is the same as that shown in Figs. 1 and 2 except that the drain pump is omitted and in its place is an ejector I" in the drain pipe I". This ejector communicates with the cold water supply line 9| by pipe 200 from the pipe SI to an ejector supply valve 2M and by pipe 202 which connects this valve and the ejector. A pipe I99 leads from the pressure relief valve SI to the drain pipe I and a pipe I86 leads from the drain valve 82 to the pipe I and then to the drain pipe. A branch pipe 2 connects the pipe I" to the ejector I85, and a check valve 204 is placed in the pipe I" between the pipes 203 and Ill.

The timer motor rotates a shaft 2" on which are the cams III! to III inclusive and a cam 20' adapted to control the elector supply valve.

The electric circuit includes a wire 223 from the sphere door switch 42 to the wires I24, I22, I and I leading to the switches I25, I29, IIII and I, as well as to one contact of a switch 206 having a follower 2" which is adapted to close the circuit to the elector supply valve when the projections 2 and 208' on cam 205 raise the cam iollower 201 to close switch 206. A wire 20!- leads from the other contact oi switch 200 to one terminal of a solenoid 2III controlling the ejector supply valve, the other terminal of which is connected to ground.

This alternate construction operates in the same manner as the construction shown in Fig. 2 so far as the cams II! to III inclusive and the parts controlled thereby are concerned. During the washing and rinsing actions, any overflow from the container 2. will flow through the drain SI and pipes I9, I", and I" to the drain pipe I" by gravity. A short time after the pressure pump commences to flow water into the lower part of the container, the ejector supply valve is opened by reason oi the cam section 2" raising the cam iollower 201 and energizing the solenoid 2Ill. This causes the ejector to divert the flow of water from pipe I to it through the pipe 203 and results in complete and rapid draining of the casing compartment 23. After the pressure relief valve 98 commences to operate, water will flow from it by gravity through the pipe I9! through the drain pipe I83, the check valve 204 preventing the water from entering the pipe I86. Shortly after the pressure relief valve 98 operates for the second extraction, the tub drain valve cam III will cause the solenoid I2'I to be energized to close the tub drain valve 88 and the ejector 'will drain the water from underneath the diaphragm through the hose I'I, pipe ll, diverting valve 81 and pipes I00, I86 and 203 to completely drain the lower part of the container. The drain valve will then be opened by reason of the opening of the circuit to the solenoid I21 upon the projection I51 oi the cam IIII passing the follower IN on the switch I25. The ejector will thereupon completely drain the compartment 23 and shortly thereafter the motors will be de-energized by reason of the cam follower ISI on the switch I29 following into the depression Iii in the cam III to open the motor switch.

I claim:

1. Mechanism for controlling the cycle of operations in an automatic washing, rinsing and extracting machine, comprising a time controlled means for controlling the washing and rinsing operations, pressure controlledgmeans for controllin the duration of the extracting operation, and means for making said first means inoperative while said second means is operative and for making said first means operative after each extracting operation.

2. Mechanism for controlling the cycle of operations in a power driven, automatic laundry machine having a washing and rinsing container with an extracting means therein, comprisin means for controlling the time of the washing and rinsing operations and for shutting ofl! the power, pressure controlled means for controlling the duration of the extracting operation, and means making each of said control means inoperative while the other is in operation.

3. Mechanism for controlling the cycle oi operations in a power driven, automatic laundry machine having a washing and rinsing container with extracting means therein, comprising a timer for controlling the duration of the washing and rinsing operations and for shutting oil the power, means for making said timer inoperative at the end of the washing and rinsing operations, a pressure valve for controlling the duration of the extracting operation, and means actuated by said valve for making said timer operative at the end of the extracting operations.

4. Mechanism of the kind claimed in claim 3 including a separate motor for operating the timer, said means for making the timer inoperative including means for initiating the extraction operation.

5. A laundry machine comprising a container, adapted to receive material to be cleaned, means for directing washing fluid and rinsing fluid to said container, means for washing and rinsing the material in said container, means in said container for extracting the washing fluid and rinsing fluid therefrom and from said material, pump means for directing a pressure fluid to said container and against said extractin means to eifect said extracting operation, a valve controlling the rinsing fluid supply, a valve controlling the supply of fluid to said pump, pressure controlled means for closing said last mentioned valve to cut oil the supply of said pressure fluid and for drainin the fluid from the container after a predetermined pressure has been reached therein, a timer for operating said valves, means for making said timer inoperative after said pressure pump supply valve is open, and means for making said timer operative after said pressure controlled means has been operated.

6. A laundry machine for washing, rinsing and extracting cleaning liquid from textiles being cleaned, comprising a container, means for introducing washing and rinsing liquids into the container, a flexible member for dividing the container into a washing compartment and a compression compartment, a time controlled means for controlling the washing and rinsing operations, a pump for forcing liquid under pressure into said compression compartment, a valve for controlling admission of liquid to said pump, a pressure relief valve for limiting the pressure in the compression compartment to a predetermined amount, a motor for operating said time controlled means, means operated by the time controlled means for opening said pump valve and at the same time stopping said motor, and means operated by said pressure relief valve for starting said motor upon completion of the extracting operation.

7. A washing and extracting machine having in combination a clothes container having agitating means in the lower portion thereof and a liquid discharge opening in the top thereof, mean for supporting said container for oscillation about an upright axis, means for oscillating said container continuously at the same speed during washing, extracting, rinsing and extracting operations in the order named, means for supplying washing liquid to the container, means for discharging liquid from the container and for extracting under pressure ilquid from the clothes through said opening, means for supplying cold rinsing liquid to the container upon completion of the wash-liquid-extracting operation and in a quantity sufficient to cause an overflow through said opening while the materials are agitated by the oscillating movement of the container and to carry away foreign matter from said materials, control means for efiectin se- 10 quential operation of the machine to obtain a cycle comprising washing, extracting, rinsing and extracting in the order named and to stop the machine after the completion of the second extracting operation, said control means comprisin a time controlled member for controlling the washing and rinsing and to stop the machine, and a pressure controlled member for controlling the extracting pressure, and means connected with the extracting means for stopping the control means durin the extracting operations.

8. A washing and extracting machine having in combination a clothes container adapted to contain clothes and a cleaning liquid and to agitate the clothes and liquid to perform a washing operation when the container is actuated and havin a liquid discharge opening in the top thereof, means for supporting said container, means for actuating said container continuously during washing, extracting, rinsing and extracting operations in the order named, means for supplying washing liquid to the container, means ,for discharging liquid from the container and for extracting under pressure liquid from the clothes through said top opening, means for supplying cold rinsing liquid to the container upon completion of the wash-liquid-extracting operation and in a quantity sufiicient to cause an overflow through said opening while the clothes are agitated in the liquid by the movement of the container and to carry away foreign matter from said materials, control means for efiecting sequential operation of the machine to obtain a cycle comprising washing, extracting, rinsing and extractin in the order named, said control means including a time controlled member for controlling the washing and rinsing and to stop the machine, a pressure controlled member for controlling the extracting pressure, and means for making each of said members inoperative while the other is in operation.

9. An automatic washing and extracting machine having in combination a container for textile materials and liquid having agitating means therein and a liquid discharge opening adjacent the top thereof, means for supporting said container for oscillation, means for oscillating said container continuously at the same speed during a period in which washing, extracting, rinsing and extracting operations are performed on the materials in the order named, means for supplying washing liquid to the container, means for dischargin liquid from the container and extracting liquid from the materials through said top opening, means for supplying rinsing liquid to the container upon completion of the wash-liquid-extractin operation and in a quantity sufficient to cause an overflow through said opening while the materials are agitated by. the oscillating movement of the container and to carry away foreign matter from said materials, control means for effecting automatic sequential operation of the machine to obtain a cycle comprising washing, extracting, rinsing, and extracting in the order named, said control means comprising a timer for controlling the washing and rinsing and to stop the machine, means for making said timer inoperative at the end of the washing and rinsing operations, a pressure controlled means for controlling the duration of the extracting operations, and means for making each of said timer and pressure means inoperative while the other is in operation.

10. A washing and extracting machine having in combination a clothes container adapted to contain clothes and a cleanin liquid, means for actuating said container during washing, extracting, rinsing and extracting operations in the order named, means in the container for extracting washing liquid and rinsing liquid therefrom and from the clothes being cleaned. a time controlled means for controlling the washing and rinsing operations, means operated by the time controlled means for initiating the extracting operation and at the same time stopping operation oi the time controlled means, and means operated by a predetermined pressure on the extracting means for starting operation or the time controlled means upon completion of the extracting operation.

11. A laundry machine for washing, rinsing and extracting cleaning liquid irom textiles being cleaned, comprising a container, means for introducing washing and rinsing liquids into the container, a flexible member for dividing the container into a washin compartment and a compression compartment, a time controlled means for controlling the washing and rinsing operations, means operated by the time controlled means for .initiating the introduction of liquid under pressure into the compression compartment to force the flexible member against said textiles and the wall 01' said container and at the same time stopping operation of the time controlled means, and means which after the pressure in the compression chamber has built up to a predetermined amount will again start into operation the time controlled means.

12. Mechanism for controlling the cycle of 0D- eratlons in a power driven, automatic laundry machine having a washing and rinsing container with extracting means therein, comprising a timer for controlling the duration or the washing and rinsing operationsand i'or shutting oi! the power, means for making said timer inoperative at the end of the washing and rinsing operations, a pressure valve for controlling the duration oi the extracting operation, the timer being electrically connected to the parts it controls, and a spring-opened switch for making said timer operative at the end of the extracting operations, said switch being closed by said valve when said valve is opened.

JOHN F. HORVATH.

REFERENCES CITED Thai'ollowing references are of record in the flie of this patent:

UNITED STATES PATENTS Number Name Date 1,547,266 Robe July 28, 1925 1,828,908 Perkins et al. Oct. 27, 1931 1,849,283 Crane Mar. 15, 1932 1,849,896 Weiman Mar. 15, 1932 2,156,541 Misenhimer et al. May 2, 1939 2,187,770 Chamberlin et al. Jan 23, 1940 2,197,294 Brockbank Apr. 16, 1940 2,265,516 Chayie Dec. 9, 1941 2,288,141 Oliver June 30, 1942 2,407,660 Graham Sept. 17, 1946