US2278911A - Washing apparatus - Google Patents

Washing apparatus Download PDF

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Publication number
US2278911A
US2278911A US20380538A US2278911A US 2278911 A US2278911 A US 2278911A US 20380538 A US20380538 A US 20380538A US 2278911 A US2278911 A US 2278911A
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Prior art keywords
water
fluid
basket
washing
tub
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Breckenridge Frank
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Westinghouse Electric Co LLC
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Westinghouse Electric Co LLC
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F23/00Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and centrifugally draining
    • D06F23/06Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and centrifugally draining and rotating or oscillating about an inclined axis
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F23/00Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and centrifugally draining
    • D06F23/02Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and centrifugally draining and rotating or oscillating about a horizontal axis
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00Controlling a series of operations in washing machines, e.g. programme-control arrangements for washing and drying cycles
    • D06F33/02Controlling a series of operations in washing machines, e.g. programme-control arrangements for washing and drying cycles electrically
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details of washing machines of kinds covered by groups D06F21/00 - D06F25/00, restricted to machines of these kinds
    • D06F37/20Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub, or casing; preventing or damping vibrations
    • D06F37/22Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub, or casing; preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis

Description

1 F. BRECKENRIDGE WASHING APPARATUS Filed April 23, 1938 5 Sheets-Sheet 1 E G. m f m M Em o WK M 5m K N m F.

F'UQJ.

WITNESSES:

April 1942. F. BRECKENRIDGE 2,278,911

WASHING APPARATUS Filed A ril 23, 1938 s Sheets-SheetQ ms T WITNESSES: M v INVENTOR I FRANK BRECKENRIDGE- m 2.! 10B ATTORNE F. BRECKENRIDGE WASHING APPARATUS Filed April 23, 1938 3 Sheets-Sheet 3 INVETOR ATTOR Y FIG. 3.

WITNESSES:

Patented Apr. 7, 1942 UNITED STATES PATENT OFFICE Frank nrecx eT-i iifmmnem, z g ikmr to Westinghouse Electric & Mann! g Company, East Pittsbnrgh,"la., a corporation of vania Pennsyi Claims.

My invention relates to apparatus for washing fabrics or the like and has for an object .to provide improved apparatus of this kind.

It is a further'object' of the invention to provide improved means foragitating the washing fluid. in a laundry machine and for spinning the fluid from the fabrics being washed.

A further object of the invention is to provide an improved washing machine wherein agitation ,of the washing fluid is effected in a container structure that may be rotated for discharging the fluid therefrom and for the extraction of fluid from thefabrics being washed.

A further object of the invention is to effect agitation of the washing fluid in a container by means, rotating unidirectionallmand to centrifugally discharge the fluid from the container and the fabrics therein by rotating the container. I

A further object of the invention is to provide combined washer and spinner wherein the fabrics being washed are uniformly distributed in the container when the spinning operation is initrifugal action for the extraction of washing fluid from its contents.

It is another object of the invention to provide an improved laundry machine in which the amount of water admitted thereto is not critical to efllcient operation.

These and other objects are eifected by my invention, as will be apparent from the following.

description and claims taken in connection with the accompanying drawings, forming a part of this application, in which:

Fig. 1 is a vertical sectional-view of my 1m; v

proved washing apparatus and is taken alongthe line I-I of Fig. 2;

Fig. 2 is a plan view of the apparatus shown in Fig. 1 with the top panelremoved and other portions broken away for the sake of clearness;

Fig. 3 is a vertical sectional view taken along' certain portions the line III1II of Fig. 2, with shown in elevation;

Fig. 4 is a sectional view taken along the line 'IV-IV of Fig. 2;

Fig. 5 is a sectional view of the speed reducing mechanism and is taken along theline V-V 01 Fig. l; y

Fig. 6 isa sectional view of a detail shown in Fig. 3; and

7 is a diagram of the electrical connections which may be employed when the apparatus is operated automatically for effecting "a predetermined series of steps in a washing program.

Reference will now be had to the drawings wherein I have shown my invention applied to a domestic type washing machine including a hasket or tube structure I having an imperforate bottom portion- II and ,a plurality of fluid discharge openings l2 circumferentially spaced in an upper portion of the side wall I3 thereof for a purpose to be referred to hereinafter. The side wall l3 preferably tapers outwardly and upwardly as shown and includes an inwardly extending flange portion I4 that defines an access opening l5 at the top of the basket. The basket I0 is preferably maintained stationary during washing periods and, as described hereinafter, is rotated during drying or spinning periods. Accordingly. the basket I0 is journalled, preferably,

on the exterior of a vertical cylindrical column l8 that iscarried by a cradle structure ll disposed below the basket. The basket Ill and its supporting cradle structure II are enclosed in a casin generally indicated at It and including a frame l9 and flnishing'side panels 2| secured thereto. The casing It also includes a top panel 22 having an opening 23 formed therein. and aligned substantially with the opening 15 inthe basket ID. The opening 23 provides access to the basket for the insertion and removal of the articles to be washed. I

As is more fully described hereinafter, agitation of the washing water is provided by a pump 24 disposed in the bottom of the basket l0 and including an impeller 25 of suitable form and disposed within a pump casing 26. .The latter is secured to the basket l0 and is provided with a plurality of fluid inlet openings 21. A substantially horizontalpartition 28 is disposed in the bottom portion of the basket Ill and defines a sump 29 from which water passes to the inlet openings 21 of the pump casing 26. The partition '28 forms the bottom of a washing chamber 3| and prevents the articles being washed from gravitating to the sump 29. Preferably, the inner portion of the partition is imperforate and its outer portion is extending fluid discharge openings 33 above the partition2 8. The upper portion 26A. of the pump casing 26-forms a centrally disposed cone 34 within the washing chamber 3| which cone may be hollow .as shown. The interior of the cone 34 may be closed by a suitable closure or cap 34A for preventing admission of water to the interior for preventing leakage of wfiter from the pump,

casing 26 to the bearing 38. The seal 39 may be carried by aninwardly extending web 40 formed in the bottom of the pump casing 26 and covering the bearings 31. The washing action produced by the impeller pump 24 will be described in detail hereinafter.

- As stated heretofore, the basket I is rotated for the purpose of discharging the washing fluid therefrom and for the extraction of. fluid from the articles being washed. The mechanism for effecting rotation of the basket .will now be described.

Rotation of the basket I6 is effected by the.

motor 36 and, preferably, at a lower speed than the speed of the impeller shaft 35 so that a speedreducing mechanism 4| in interposed between the shaft 35 and the basket. The speed reducing mechanism 4| may include a relatively slow speed element or sleeve 42 that is journalled on the cylindrical column I6. The sleeve 42 drives the basket l0 through a clutch 43, the latter being shown of the cone type but which may be of any other suitable construction. The driving element of the clutch 43 is shown at 44 connected to the sleeve 42 and the driven element 45 of the clutch 43 is splined to a hub 46 secured to the underside of the basket I0. As shown, the

. hub may be formed integral with the pump casing 26 and it is between the hub 46 and the cylindrical column l5 that the anti-friction bearings 7 3 1 are arranged.

Operation of the clutch 43 may be effectedin any suitable manner when the washing apparatus is operated as a non-automatic machine.

As a washer constructed in accordance with my invention is particularly adaptable for automatic operation wherein a predetermined'program of steps is effected cyclically, I have chosen to disclose it as an automatic washer. Accordingly, the movable or driven clutch element 45 is actuated electrically, preferably, by an electro-magnet 41 having a winding 43 and a movable armature 49. The latter may be connected to a bell crank 5| pivoted at 52 and having an 4 arm 53 for'actuating the driven element 45 of the clutch '43. Movement of the arm 53 may be imparted to the clutch element 45 by means 0f pins 54 secured in the arm and-extending into an annular groove 55 formed on the clutch element 45. The clutch 43 is biased to its open position by suitable means, such as a torsion spring 56 which urges the hell crank 5| in clockwise directionabout its pivot 52.- Energization of the magnet winding 46' attracts its armature 49 and effects counter-clockwise movement of the bell crank 5| whereby the clutch element 45 is moved axially into engagement with the driving element 44 of the clutch 43.

Deceleration of the basket "I maybe effected by a brake, generally indicated by the numeral 51 and including a stationary member 58 secured to the cradle l1, and an annular face 59 formed on the driven element 45. When the clutch is moved to its open position, as shown, the face 59 of the 'drivenelement' 45 "engages the stationary braking member 53 and deceleration of the driven clutch element 45 and the basket I ll splined thereto is effected.

The employment of the brake 51 to maintain the basket l0 stationary is optional. it may be desirable to permit slow rotation. or oscillation of the basket by the agitatedbody of water therein during washing periods as it has been found that such operation improves the washing action in certain types of washers. This is due to the shifting of the body of fluid and the fabrics thereinrelative to the agitator means, and,

therefore, the more even distribution of the work done by the agitator.

The driven sleeve 42 of the speed reducing mechanism 4| may be provided with an internal gear 63 disposed within a gear chamber 64 and driven by a, pinion 65 through idler-gears 66 and 61, see Fig. 5. The pinion 65 is driven by the shaft 35 at relatively high speed, for example, 1750 R. P. M. and the speed reduction is v such that the sleeve 42 is operated at approximately 500 R. ,P. M. Preferably, the sleeve 42 and shaft 35 rotate in the same direction. As will be more apparent from the description which follows, the sleeve 42 and shaft 35 rotate at all times that the washer is operated.

The cylinder column I6 which defines the support for the basket l6 may be secured in position by bolts 66 which are threaded in a flange 69 formed on the bottom of the column |6. The

-bolts 68 secure the column l6 to a cover 1| carried by'thecradle structure "and closing the gear chamber 64. The flange69 is cut away for providing a recess 12 for the idler gears 66 and 61 as best shown in Fig. 5. The bolts 68 whichex tend through the recess 12 may define axles' for the idler gears 56 and 61.

A steady bearing 13 for. the lower end of the impeller shaft 35 is carried by the cover 1|. A gland or stufling box 14 may be employed for preventing the loss of lubricant from the gear chamber 64, the g land being disposed below the bearing 13 as shown.

The motor 36 for actuating the impeller 25 and the basket I. is carried by brackets 15 which depend from the cover 1|. A conventional coupling 16 may be employed for connecting the shaft of the motor 36 and the lower end of the impeller shaft 35.

The specific form of speed reducing and clutch mechanism which I have disclosed forms no part of the present invention and illustrates but one of many mechanisms which may be employed for effecting relatively high speed operationof the impeller shaft 35 and intermittent lower speed operation of the-basket 16 about a common axis. The supplying of water to the basket may be effected in any suitable manner. As shown in Fig. 3, apair of conduits 11 and 13 areprovided for connection to respective hot and cold water sources. The hot and'cold water commingle 'iil a mixing chamber 13 which 'is' connected bya conduit 8| to a discharge nozzle 8 2,v the latter overhanging the basket "I. Water discharged from the nozzle 82 enters the basket I through washing chamber 3|.

its opening l5, and is preferably directed by the nozzle 82 toward the center member 34. An overflow opening 80 may be provided in the sidewall l3 of the basket for preventing overfllling of the basket, which opening 80 is slightly above the normal water line.

Suflicient structure has now been disclosed to describe the washing action which is effected in the basket I0. Water and a detergent, such as soap are admitted to the basket ID, the normal level of the fluid being indicated by the broken line. The articles or fabrics to be washed are placed in. the fluid and the motor 36 is energized. During washing periods, the clutch 43 is open so that the basket If) is substantially stationary. The motor 36 operates to rotate the impeller 25 whereby fluid from the sump 29 is drawn into the pump casing 26 through the openings 2'! and discharged ,at relatively high velocity through the discharge openings 33 into the bottom of the the fabrics, which fluid flows upwardly within the tapered side wall H of the basket l and'is discharged through the openings l2. Clear water may be supplied at this time through the nozzle 82 for providing a spray rinse whereby a portion of the soap remaining in the fabrics is dissolved and carried away by the rinse water. Vibration which is caused by an unbalanced. load during the washing chamber 3|. The discharged fluid passing over the partition 28 induces outward movement of the body of fluid in the bottom of the Some ofthe fluid passes through the openings 32 to the sump 29 but the majority of the fluid after moving radially over the partition 28 moves upwardly within the I tapered wall l3 of the basket l0 and thence inwardly towards the cone 3 at the center of the basket. The fluid then descends adjacent the cone 34 and is again motivated by the fluid dischargedfrom the openings 33. The movement of 'the turbulent fluid in the basket is shown by the arrows in Fig. 1. I

The fabrics in the basket are carried by the fluid and agitated therein, the soils in the fabrics being removed by the detergent fluid after a period of operation, the duration of which depends upon the condition of the soils. The method of cleansingfabrics described heretofore is well understood in the art so that further description of the same is deemed unnecessary.

In accordance with my invention, the basket I0 is rotated for discharging the water therefrom and for extracting a substantial portion of the water from the clothes. This operation is eflected after the washing operation is completed. Engagement of the clutch 43 initiates rotation of the basket it by the motor 36 through the speed reducing mechanism ll. As the basket I] accelerates, the fluid therein moves outwardly and upwardly due to centrifugal action and passes through the discharge openings l2. A baffle 33 of cylindrical configuration surrounds the'basket and is engaged by the fluid projected through the openings l2. Fluid draining from the bafl'le 33 is collected in an annular trough or pan .4 disposed below the lower edge of the baffle 33 and supported by the cradle structure Il. discharged from the pan 34 in any suitable manner, such as, for example, by means of a pump 85 driven by the motor 36. A conduit licennects the pan II with the inlet of the pump and a second conduit 31, such as, for example, a flexible hose, conveys the fluid from the pump to a point of discharge.

luid isv The fabrics are maintained in a separated and spinning operation is reduced to a minimum by the more even distribution of the fabrics in the basket ID. This feature of my invention is particularly desirable when employed in a washer operating automatically wherein the transition from the washing step to the spinning or fluid extracting step is effected without manual attention.

After the washing and spinning of the fabrics has been completed, flnal rinsing of the fabrics is effected. The operation of the apparatus is the same as described heretofore except that -rinse water is used instead of water and a detergent. The clear rinse water may be circulated and agitated by the pump until substantiallyall of the soap difluses in the water and is discharged when spinning of the basket-is effected.

The washing and spinning structure, described heretofore, may be flexibly mounted within the casing structure IQ for reducing vibrations imparted to the latter, particularly during the extracting or spinning periods. -Any suitable mechanism may be employed for flexibly mounting the washer structure. The supporting mechanism may include a pair of verticaltubular members 9|, the lower ends of the tubular members 9| being secured to and carrying the cradle structure H. The tubular members 9| are suspended from a gimbal ring 32,- the latter encompassing the bailie 33 in spaced relation. OppositeIy disposed bearings 93 are provided in the gimbal ring for receiving studs projecting from the tubular members 9|. The gimbal ring 92 is provided with oppositely disposed hubs 95 that are supported in bearings 36 in equalizer bars shown at 81, which hubs 95 are spaced from the studs 94 carried by the vertical members 3|.

The equalizer bars 91 are carried by vertical connecting rods 33 which are supported by the vframe l3. Ball and socket connections 39 are provided between the connecting rods 38 and the frame It and between the connecting rods 98 and the equalizer bars 31. A pair of inertia stabilizers IM may be carried by the vertical members 9| adjacent the top thereof. the stabilizers llll defining a support for the bailie 33.

It will be apparent from the foregoing description that the connecting rods 38 and the equalizer bars 91 define the sole support for the gimbal ring 92, the latter carrying the vertical members 3|; the-"cradle structure 11 and the apparatus supported thereby. Rocking move-' ment of the rotating elements of the washer in vertical planes normal to each other is provided by the pivotably mounted gimbal ring 32 and the pivoted connection between the ring 92 and. the vertical tubular members 3|. Movement of the gimbal ring 32 horizontally is provided by the connecting rods "and their ball and socket connections 93 to the equalizer bars 91 and the casing structure It. Accordingly, the vertical axis of the basket ldis free to shift horizontally in any direction and may rock in any vertical plane.

Movemept of the flexibly mounted structure is opposed by its mass. The amplitude of movement of said structure for a given unbalanced load-may be maintained within predetermined limits by varying the mass of, the inertia stabilizers IOI. Vibration of the casing structure I! is eliminated, substantially, by the flexible mounting of the rotating elements and their supporting structure so that the washer may be constructed as a portable machine and operation of the same eliected without any special foundation provisions or securing the casing to the laundry floor.

A mentioned heretofore, my improved washer is particularly adaptable for automatic operation wherein washing, rinsing and spinning of the fabrics being cleansed are automatically effected for predetermined periods of-time. The apparatus may readily be adapted for automatic operation because of the simplified mechanism for effecting the washing of the fabrics, the discharge of water from the apparatus and the extraction of water from the fabrics. The only automatic operation necessary during transition from the washing period to the water discharging and extraction periods is the adjustment of j and 10 to the mixing chamber 10 is controlled by respective electrically operated valves I03 and I04. The valves I03 and I04 may be actuated by solenoids I05 and I00, respectively. 'As the construction and operation of such valves is well known in the art, further description of them is deemed unnecessaryother than to state that they are open when their solenoids are energized and are closed when the solenoids are deenergized. The motor 30,- and solenoidsv I05 and I and the clutch magnet winding 40 are energizable from a suitable source of power represented by line conductors L1 and L: in Fig.1.

Reference will now be had to the electrical diagram (Fig. 7), wherein I have shown a time control mechanism I01 including a drum switch I00 driven by a motor I09 of the type commonly employed for operation of clocks. The drum switch I08 is shown in development and includes a plurality of stationary contact fingers I09 to H2, inclusive, and a drumI I3 having a plurality of electrically connected movable segments H3 to H1, inclusive, cooperating with said fingers.

A'shaft IIB of the drum switch is driven by the motor I09 through a speedreducing mechanism H9. It will be understood that the developed drum I08 moves in the direction indicated by the arrow .when actuated by the shaft H0. The

drum switch I 03 is provided with a handle or the knob I and which drives the drum I08 when.

the motor I00 is operated.

Temperature control of the water admitted to solenoid I00. The thermostat I23 may include a snapacting bimetallic member I25 disposed in heat transfer relation with the water in the mixing chamber for actuating the switch I24. When the temperature of the water in the mixing chamber 10 is below a predetermined value, the bimetallic member holdsits switch I24 open -so that the cold water solenoid is deenergized and only hot water is delivered, to the mixing chamber 19. As the temperature of the water increases to asecond value, the bimetallic element closes the switch I24 so that the solenoid I00 isenergized and cold water is delivered to the mixing chamber for mixture with the hot water.

Adjustment of the thermostat I23 may be provided for varying the temperature of the water delivered to the basket I0. This feature is ,deslrable as diflerent fabrics require different wash water temperatures. In order to vary the water temperature, at which the, switch I24 is opened, a small heater I20 may be provided for the bimetallic element I25, which heater I20 is controlled by a temperature selector switch I21.

whenthe heater I20 is energized, the bimetal element I25 is subjected to heat from both the heater I20 and the water so that it operates the One form of thermostat 23 which maybe'employed is structurally shown in Fig. 6. A relatively thin plate I3I having high heat conducting properties is secured to the wall of themixing chamber 19 and covers an opening formed in the wall so that the water inthe mixing chamber 15 is in contact with the plate -I3I. The thermostatic element I25 is secured to the plate I3I in heat transfer relation therewith. Accordingly,

temperature changes in the water are quickly reflected by the thermostatic element I25. Stationary contacts I32 and I33 of the switch are shown carried by an insulating cover I34 which is recessed for housing the thermostatic element I25. A movable contact I35 is actuated by the thermostatic element I25 and bridges the contacts I32 and I33 in the closed position of the switch I24. The heater I20 is shown secured to the thermostatic element in heat transfer relathe basket I0 may be provided by a thermostat- I23 including a switch I24 connected in circuit with one of the valve solenoids. As shown, the switch 24 is in circuit with the cold water valve tion therewith. The conductors that are connected to the contacts I32 and I33 and the heater I20 are shown diagrammatically and enter the recess of the cover I34 through an opening I30. The temperature selector switch I21 and the motor driven time switch I01 may be carried on one of the side panels 2| of the casing structure I8 where they are accessible to the operator, (see Fig. 2). V

' Operation connected solenoids I and I05 include theline conductor L1, finger IIO, segments II3-and II4, finger III, a conductor I38, solenoids I05 and I03 and the line conductor L2.

Rotation of the impeller 25 is effected by the main motor 36 and the timer motor I00 operates to rotate the drum switch I08. Water at the 7 selected temperature is delivered to thebasket I0, as the valves I03 and I04 are opened by their respective solenoids. Flow of water to the basket I0 continues until the drum switch I08 disengages the segment I I4 from the finger III. The period of time that the valves I03 and I04 are maintained open by the engagement of the finger III and segment H4 is sufficient to fill the basket with water to the proper level. Some slight vari- ,.ation in the amount of water .delivered to the basket I0 may be caused by variations in water pressure. The operation of my improved washer is not affected by the slight differences in the amount of water delivered thereto that would be caused by pressure variations ordinarily encountered.

It will'be understood at this time that the basket I0 is. stationary, as the clutch magnet winding 48 is deenergized and, therefore, the clutch elements 44 and 45 are disengaged and the brake 51 is applied.

Agitation of the washing fluid in the chamber 3| is effected by the impeller 25, as described heretofore, for a predetermined period of time determined by the spacing of the segments H4 and H5 of the drum switch I08. At the end of the washing period the segment II5 engages the stationary contact finger III whereby the clutch magnet winding 48 is energized through a circuit including the line conductor L1, the contact finger I I 0, the segments H3 and H5, finger III, a conductor I39, the clutch solenoid winding 48 and the line conductor L2. e

Energization of the magnet winding 48 effects engagement of the clutch 48, as described heretofore, whereupon rotation of the basket I0 is initiated. The washing fluid moves outwardly due to centrifugal action and is discharged through the openings I2 into engagement with the baffle 83 and drains to the pan 84. is discharged from the pan 84 to a,point of discharge by means of the pump 85. The fabrics being washed are moved outwardly in contact with the wall I3 of the basket I0 by centrifugal action and a substantial quantity of the washing fluid contained therein is extracted, which fluid passes to the pan 84 as described. Extraction of fluid from the fabrics continues until the contact segment I I5 disengages the finger II2 whereupon the clutch magnet winding 48 is deenergized and the clutchf43 is opened. Accordingly the brake ,5! is applied and rotation of the basket is tera Vibration of the ning or extracting period is reduced to a minienergized by the engagement of segment I I1 and finger II! for initiating spinning of the basket. The rinse water is discharged from the basket by centrifugal action and the fabrics are spun for the extraction'of rinse water therefrom. After a predetermined period of spinning, the drum switch is moved to its "on." po'sition,.wherein both the main motor 35, the timer motor I03 and the clutch solenoid 48 are deenergized. The drum I08 has completed a revolution and is conditioned for anothercycle. The fabrics are then removed from the basket for further dry- The foregoing description relates to one program of steps automatically effected in accordance with the invention, which program may be varied as desired. For example, the fabrics may be given two or more rinsing operations instead of the one described or a spray rinse may be employed during the period of extraction of the wash water. a

Throughout the specification, I have referred to drying ofthe fabrics by centrifugal extraction. In defining the term drying,.I means the removal of' a substantial portion of the fluid from I I the fabrics or the removal of the amount of fluid parent that I have provided improved apparatus foriwashing and drying of fabrics, which apparatus may be manually adjusted for effecting different operations or which may be operated so that the various operations are successively and automatically effected. The washing action and themethod of discharging the washing fluid from.

the apparatus which I employ, permit the design of a washer that is simple and economical to manufacture;

apparatus during the spin- 7 mum due to the substantially uniform distribution of the articles in the basket after the washing period has terminated. I This feature of the operation is extremely important when the apparatus is constructed for automatic operation or when the spinning operation is initiated subsetinuously rotated and directly connected to the motor shaft. The only adjustment to the drive mechanism during operation'is the actuation of a single clutch between the driving motor 36 and the basket I0.

The washing apparatus, as a unit, is substantially symmetrical so that it may be disposed in a casing that is symmetrical and pleasing ,to the Furthermore, the washing unit. may be' eye. readily mounted flexibly within the casing so that vibrations originating in the unit are not transmitted to the casing. 1

While I have shown-my invention in but one form, it will be-obvious to those skilled in the art that it is not'so limited, but is susceptible of various changes and modifications without departing from the spirit thereof, and I desire, therefore, that only such limitations shall be placed thereupon as are specifically set forth in the appended claims.

What I claim is:

- 1, In a machine for washing fabrics and the like and for extracting water therefrom, the combination of a tub mounted for rotation about a substantially vertical axis and having a bottom wall and a substantially circular vertical wall, said tub embodying a lowersump portion and an upper fabric containing portion and said tub defining the sole container for the wash water in which the fabrics are immersed, said tub also embodying passageway means located adjacent the top of the fabric-containing portion for the ingress and egress of the fabrics and for discharging water from the tub, means for admitting water to the tub, pump means substantially conflned in the sump whereby the fabric-containing portion of the tub is substantially unobstructed, said pump means being arranged to discharge water radially against the vertical wall of the tub adjacent the bottom of the fabric-containing portion of the tub, said vertical wall of the tub being effective for deflecting some of said water upwardly after which such water is circulated inwardly toward the center of the tub by the outward motion of the water discharged by the pump means, means for retaining the tub in a fixed position and for driving the pump means during washing periods and means for rotatingthe tub during waterextracting periods.

2; In a machine for washing fabrics and the ,like and for extracting water therefrom, the combination of a tub mounted for rotation about a substantially vertical axis and embodying 'a lower sump portion and an upper fabric-containing portion, said tub defining the sole container for the wash water in which the fabrics are immersed, said tub also embodying passageway means located adjacent the top of the fabriccontaining portion for the'ingress and egress of the fabrics and for discharging water from the tub, means for admitting water to the tub, pump means substantially confined in the sump whereby the fabric-containing portion of the tub is rotating the impeller at all times that the machine is operated, a clutch connected between the motor and the tub and means for actuating the clutch to a plurality of positions in one of which the tub is maintained stationary durin washing periods and in the second of which the "tub is rotated by the motor during water-exr tracting Pe ods.

substantially unobstructed, said pump means ineluding a rotatable impeller and a water discharge nozzle for directing water generally in a horizontal direction adjacentto the bottom of the fabric-containing portion of the tub, whereby the water in the fabric-containing portion is motivated in a toroidal formation, a motor for rotating the impeller, a clutch associated with the tub, and means for actuating the clutch so that the tubis maintained stationary during are immersed, said tub also embodying passageway means located adjacent the top of the fabriccontaining portion for the ingress and egress of I the fabrics and for discharging water from the tub, means for admitting water to the tub, pump means substantially confined in the sump whereby the fabric-containing portion of the tub is substantially unobstructed, said pump means ineluding a rotatable impeller and a water discharge nozzle for directing water generally in a horizontal direction adjacent to the bottom of the fabric-containing portion of the tub, where- 'by the water in the fabric-containing portion is motivated in a toroidal formation, a motor for 7 tion thereof above the normal fluid level in the 4. In a machine for washing and drying fabrics, the combination of a container rotatable about a substantially vertical axis, said container having an imperforate bottom portion for containing a bodyof washing fluid and fluid discharge openings in its upper portion above the normal liquid level of the contained body of fluid, a perforate partition below the liquid level in the container for defining a sump in the bottom of the container, a pump conflned substantially in said sump for translating fluid from the sump to the body of fluid above said partition,

said-translated fluid being projected at relative- I ly high velocity into the body of fluid above the partition for agitating the same, means for rotating .the container for centrifugally discharging the body of fluid in the container and fluid from the fabrics through said openings, and means for collecting said discharged fluid.

5. In a machine for washing and drying fabrics, the combination of a substantially cylinedrical container for washing fluid, said container having a vertical axis and providedwith fluid discharge openings in an upper portion thereof, means for admitting washing fluid to the con? tainer, a perforate partition for defining a sump in the bottom ofthe container, pumping means confined substantially within the sump for withdrawing fluid from. the sump and projecting it at relatively high velocity over the upper surface of the partition for agitating the washing fluid in the container, a shaft extending through the bottom of said container for rotating the pumping means, ahollow shaft concentrically disposed about said first-named shaft for'rotating the container whereby fluid is centrifugally discharged through said fluid discharge openings, means for collecting the discharged fluid, a motor for rotating said shafts, a clutch connected between the hollow shaft of the container and the motor, a cradle structure disposed below said cradle and having an imperforate bottomv portion and a plurality of fluid discharge ports in an upper portion thereof, means for agitating the fluid in the basket, a motor for effecting continuous rotation of the agitating means relative I Said basket during all periods of operation of the washer, and means driven by said motor for rotating thebasket whereby fluid in the basket is discharged through the fluid discharge ports during drying periods, said motor being supported by the cradle, and means for flexibly'supporting the cradle.

7. In 'a machine for washing and dryingfabbrics, the combination of a cradle structure, a vertical cylindrical member carried by said cradle structure, a tub for washing fluid journaled on the cylindrical member and having an access opening in the top thereof, said tub having a plurality of fluid discharge ports in a top poraa 'raon 7 tub, means for admitting washing fluid to the tub, an impeller for agitating the fluid in the tub, a shaft for the impeller journaled in said cylindrical member, a motor for driving said shaft and carried by the cradle structure, speed reducing mechanism driven by the motor and including a driven shaft journaled on the cylindrical member, a clutch for engaging and disengaging the tub and said driven shaft, said clutch when engaged effecting rotation of the tub, whereby fluid in the tub is centrifugally discharged through said ports and fluid in the fabrics is extracted therefrom, and means including a trough for collecting fluid discharged from the tub, said trough being supported by the cradle and encompassing. said cylindrical member.

8. In a clothes washer, the combination of a tub disposed for rotation about a substantially vertical axis and having its lower portion imperforate for containing washing water and the fabrics immersed therein, said tub having openings formed in the upper portion thereof for the 9 discharge of wash water during periods when the tub is rotated, means disposed adjacent the bottom of the tub for agitating water'contained therein, first and second shafts concentrically arranged for driving the agitating means and the tub, respectively, a cradle for rotatably supporting said shafts, a clutch carried at least in part by the cradle and associated with said sec-- and shaft and a substantially cylindrical baflle structure encompassing the tub and having an annular trough formed in'the depending portion thereof and disposed above the cradle, said trough encompassing, substantially, said shafts and its bottom, encompassing the tub for intercepting water discharged radially through saidopenings during rotation of the tub and a trough disposed beneath the lower edge of the baflle and encompassing, substantially, the concentric shafts and said clutch.

i 10. In a clothes washer, the combintion of a tub having its lower portion imperforate for containing washing water and the fabricsimsaid trough being carried by the cradle structure and encompassing the clutch.

11. In apparatus for washing fabrics or the like, the combination of a tub having an imperforate lower portion forcontaining washing fluid and. the fabrics contained therein, said tub having a plurality of fluid discharge openings circumferentially spaced in an upper'portion thereof, an impeller for agitating the water in the tub and having a driving shaft extending downwardly through the bottom of the tub, a second shaft concentrically arranged with respect to the first-mentioned shaft for rotating said tub about a substantially vertical axis, said impeller shaft being journaled within the second shaft for rotation with respect thereto, a cradle structure for rotatively supporting both of said shafts, a substantially cylindrical baflie encompassingthe tub for deflecting water discharged, through said openings downwardly, a substantially annular trough carried by the cradle structure and having a depending portion of said baiiie extending therewithin and spaced therefrom, said trough .en-

mersed therein and having openings formed in anupper portion thereof for the discharge of washing water, a cradle structure disposed below the tub for supporting the same so that it may be rotated about a substantially vertical axis, an impeller disposed within the tub adjacent the bottom thereof for agitating the-wash-- ing water, a shaft for driving the impeller and extending through the bottom of the tub, a fluid-tight seal interposed between the tub and said shaft, means for rotating the tub, a clutch for controlling rotation of the tub, a baiiie structure encompassing the tub and having its bottom edge disposed above said cradle structure and a substantially annular trough arranged beneath the bottom edge of said baflle structure for the collection of water discharged from the. tub,

compassing said first and second shafts, and means associated with said impeller shaft for discharging water from the trough.

12. Ina machine for washing and drying fabrics, the combination of a cradle structure, atub for washing fluid having fluid discharge ports in an upper-portion thereof and rotatably supported by and above the cradle structure, a substantially horizontal perforate partition disposed within the tub for defining a sump at the bottom thereof,-a pump housing within the sump and provided with fluid passages, said pump housin including a portion above the partition and having a plurality of radially-extending fluid discharge ports formed therein, an impeller in the pump housing, a motor for driving said impeller continuously during all periods of operation of the machine and carried by the cradle structure, a member journaled on the cradle structure and driven by the motor for rotating'the tub, and a clutch interposed between said driven member and the tub.

13. In apparatus for washing fabrics and for subsequently extracting water therefrom, the combination of a basket for containing the water and fabrics and disposed for rotation about a substantially vertical axis, an agitator coaxially disposed within the basket, means for continuously rotating the agitator relative the basket in a single direction during both washing and extracting periods, and means for rotating the basket during extracting periods, so that the speed of the agitator relative to the basket is dif? ferent in the washing and extracting periods.

14. In apparatus for washing fabrics and for subsequently extracting water therefrom, the combination of a basket for containing the water and fabrics and disposed for rotation about a substantially vertical axis, an agitator coaxially disposed within the basket, means for continuously rotating the agitator relative the basket in a single direction during both washing and extracting periods, and means for rotating the basket in the same direction as the agitator dur ing extracting periods 'so that the'speed of the agitator relative to the basket is relatively high during washing periods and relatively low during extracting periods.

axis,, means arranged withinthe container for agitating the fabrics in the cleaning fluid. drlvin; means for actuating the agitator during washing perloa; and for rotating the container structure for eentrlmglng cleaning fluid from the fabrics, said container and driving means 5 ture and providing for rocklng movement 0! the unit structure in vertical planes and providing for horizontal translations of the unit structure. said flexible supporting means being effective to restrain theunlt structure against vertical translations.

' FRANK E.

US2278911A 1938-04-23 1938-04-23 Washing apparatus Expired - Lifetime US2278911A (en)

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US2278911A US2278911A (en) 1938-04-23 1938-04-23 Washing apparatus
US2296257A US2296257A (en) 1938-04-23 1938-04-23 Apparatus for washing fabrics or the like

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US2278911A US2278911A (en) 1938-04-23 1938-04-23 Washing apparatus
US2296257A US2296257A (en) 1938-04-23 1938-04-23 Apparatus for washing fabrics or the like
DE1939S0136848 DE736334C (en) 1938-04-23 1939-04-24 Washing machine to wash and spin-dry Waeschestuecken
DE1939S0147900 DE760743C (en) 1938-04-23 1939-04-24 Machine for washing and spin-drying Waeschestuecken od. Like.

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US2421242A (en) * 1943-05-21 1947-05-27 Gen Motors Corp Domestic washing machine and method
US2489896A (en) * 1944-07-17 1949-11-29 Dole Valve Co Mixer valve and control
US2521159A (en) * 1943-06-21 1950-09-05 Nineteen Hundred Corp Automatic washing, rinsing, and drying machine
US2533624A (en) * 1946-06-19 1950-12-12 Gen Controls Co Liquid level and temperature control system
US2592597A (en) * 1945-08-24 1952-04-15 Wilbert L Pengelly Jet action washing machine
US2614410A (en) * 1947-02-18 1952-10-21 Apex Electrical Mfg Co Washing machine provided with vibration dampener and mounting
US2619284A (en) * 1949-09-24 1952-11-25 Fisher & Ludlow Ltd Thermostatic mixer for washing machines
US2699294A (en) * 1953-12-31 1955-01-11 Gen Electric Temperature responsive control for waste disposal devices
US2699660A (en) * 1946-05-23 1955-01-18 Apex Electrical Mfg Co Washing and extracting machine
US2730886A (en) * 1951-12-06 1956-01-17 Speed Flex Inc Clothes washing machines
US2767569A (en) * 1954-07-28 1956-10-23 Gen Electric Clothes washing machines
US2797569A (en) * 1951-06-09 1957-07-02 Apex Electrical Mfg Co Clothes washing machine
US2932454A (en) * 1957-03-18 1960-04-12 American Radiator & Standard Remote control means for thermally sensitive element and mixing valve employing such means
US2976998A (en) * 1956-12-03 1961-03-28 Maytag Co Damping system for a washing machine
US4054412A (en) * 1976-12-09 1977-10-18 General Electric Company Clothes washing machine and method of washing clothes
US4328600A (en) * 1979-05-15 1982-05-11 General Electric Company Washing machine
US4744228A (en) * 1985-10-21 1988-05-17 Michael Goldberg Agitatorless clothes laundering
US5661989A (en) * 1995-03-23 1997-09-02 Samsung Electronics Co., Ltd. Washing machine having vertical water guiding channels on inner surface of washing basket
US6901778B2 (en) * 2001-06-27 2005-06-07 Lg Electronics Inc. Clutch apparatus for washing machine
US20080307833A1 (en) * 2004-07-20 2008-12-18 Lg Electronics Inc. Drum-type washing machine and bearing housing structure thereof
US20090071200A1 (en) * 2002-12-27 2009-03-19 Jae-Won Chang Drum type washing machine
US20100018261A1 (en) * 2002-12-27 2010-01-28 Jae Won Chang Drum type washing machine
US20110041566A1 (en) * 2005-09-30 2011-02-24 Lg Electronics Inc. Drum-type washing machine
USRE43625E1 (en) 2006-03-29 2012-09-04 Lg Electronics Inc. Drum type washing machine

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KR100651853B1 (en) 2005-09-30 2006-11-23 엘지전자 주식회사 Bearing housing assembly of an insert-molding type and cabinet-tub unified drum-washer having the same
US8065816B2 (en) * 2007-12-03 2011-11-29 Electrolux Home Products, Inc. Dryer drum vane
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Cited By (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421242A (en) * 1943-05-21 1947-05-27 Gen Motors Corp Domestic washing machine and method
US2521159A (en) * 1943-06-21 1950-09-05 Nineteen Hundred Corp Automatic washing, rinsing, and drying machine
US2489896A (en) * 1944-07-17 1949-11-29 Dole Valve Co Mixer valve and control
US2592597A (en) * 1945-08-24 1952-04-15 Wilbert L Pengelly Jet action washing machine
US2592596A (en) * 1945-08-24 1952-04-15 Wilbert L Pengelly Jet action washing machine
US2699660A (en) * 1946-05-23 1955-01-18 Apex Electrical Mfg Co Washing and extracting machine
US2533624A (en) * 1946-06-19 1950-12-12 Gen Controls Co Liquid level and temperature control system
US2614410A (en) * 1947-02-18 1952-10-21 Apex Electrical Mfg Co Washing machine provided with vibration dampener and mounting
US2619284A (en) * 1949-09-24 1952-11-25 Fisher & Ludlow Ltd Thermostatic mixer for washing machines
US2797569A (en) * 1951-06-09 1957-07-02 Apex Electrical Mfg Co Clothes washing machine
US2730886A (en) * 1951-12-06 1956-01-17 Speed Flex Inc Clothes washing machines
US2699294A (en) * 1953-12-31 1955-01-11 Gen Electric Temperature responsive control for waste disposal devices
US2767569A (en) * 1954-07-28 1956-10-23 Gen Electric Clothes washing machines
US2976998A (en) * 1956-12-03 1961-03-28 Maytag Co Damping system for a washing machine
US2932454A (en) * 1957-03-18 1960-04-12 American Radiator & Standard Remote control means for thermally sensitive element and mixing valve employing such means
US4054412A (en) * 1976-12-09 1977-10-18 General Electric Company Clothes washing machine and method of washing clothes
US4328600A (en) * 1979-05-15 1982-05-11 General Electric Company Washing machine
US4744228A (en) * 1985-10-21 1988-05-17 Michael Goldberg Agitatorless clothes laundering
US5661989A (en) * 1995-03-23 1997-09-02 Samsung Electronics Co., Ltd. Washing machine having vertical water guiding channels on inner surface of washing basket
US6901778B2 (en) * 2001-06-27 2005-06-07 Lg Electronics Inc. Clutch apparatus for washing machine
US8336340B2 (en) 2002-12-27 2012-12-25 Lg Electronics Inc. Drum-type washing machine
US20090071200A1 (en) * 2002-12-27 2009-03-19 Jae-Won Chang Drum type washing machine
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US2296257A (en) 1942-09-22 grant
DE736334C (en) 1943-06-12 grant
DE760743C (en) 1953-06-08 grant

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