Dec._ 3, 1946. J. B. DYER 2,411,960 DOMESTIC APPLIANCE Original Filed Jan. 8, 1940 I a o I 0 1 l | l 0 I I | l i 0 I I l I 1 I | l I | | 3 Sheets-Sheet. 1 Dec. 3; 1946. J. a. DYER 2,411,960 DOMESTIC APPLIANCE Original Filed Jan. 8, 1940 220 To Pr 12‘! ZZZ j 2Z6 3 Sheets-Sheet 2 Dec. 3, 1946. ' ‘ J_ B, DYER 1 2,411,960 DOMESTIC APPLIANCE Original Filed Jan. 8, 1940 no \J 3 Sheets-Sheet 3 Patented Dec. 3, 1948 2,411,960 UNITED STATES PATENT OFFICE 2311,!“ DOMESTIC APPLIANCE JohnlDyenSyraonsaN. Yua-ignortoGeneral Motors Corporation, Dayton, Ohio, a corpora tion of Delaware Original application January 8, 1940, Serial No. 812,837. Dlvided and this application March 13, 1943, Serial No. 479,”: 1 ' 3 Claims. This invention relates to a domestic appli ance, and more particularly to washing ma , (Oi. ca-izi 2 tatable agitating means having a helical vane for agitating the washing ?uid and the clothes in the spinning basket during the washing and This application is a division of my copendlng periods. The agitating means is con application Serial No. 312,837 ?ied January 8. 6 nected through the bottom of the basket by a chines. ' 1940 now Patent No. 2,331,897 issued Oct. 19, vertical shaft which may be a vertical extension 1943, and is particularly directed to the auto of the motor shaft of an electric motor which is matic‘ control means for controlling the washing ?exibly mounted beneath the spinning basket. machine. The spinning basket is rotatably mounted upon It is another object of my invention to provide 10 a sleeve surrounding the. shaft connecting the in a washing machine a simple, durable, inex~ motor and the agitator, and this sleeve is pro pensive means for providing an automatic change vided at its lower end with a movable clutch from the washing or agitating period to the dry plate which normally rests in engagement with ins period. . a braking member. A clutch is also provided It is another object of ‘my invention to provide 15 upon the motor shaft for lifting the clutch plate a simple, inexpensive, automatic control for the from the braking surface and making frictional introduction of washing fluid, as well as wash engagement with the clutch plate to drive the inmgigsinganddryinginadirectdrivewashing spinning basket forcentrifugal drying of the It is still another object of my invention to is provided for controlling the introduction of washing ?uid into the basket and for operating me c provide an automatic direct drive washing ma- . chine operating through a means common to both the agitating means. and a centrifugal dry ing means at motor speed. Further objects and advantages of the present invention will be apparent from the following description, reference being bad to the accom panying drawings wherein a preferred form of clothes in the basket.‘- An electric control means the motor and the clutch means. In a modi?ed form, a reversing driving motor is provided which, by reversing, controls the clutch means to provide an agitating period and a spinning period in opposite direction of rotation. The casino and framework ~ the present invention is clearly shown. In the drawings: Fig. l is a vertical sectional view through a washing machine embodying one form of my invention; ‘ Referring now to the drawings, and more par ticularly to Fig. 1, there is shown a washing ma chine including an ornamental sheet metal cas ing Ill within which is provided a supporting frame construction which includes four diagonal Fig. 2 is a wiring diagram of the automa control mechanism for the washing machine 35 supports 22, each provided at their lower ends with an adjustable glide It for supporting the shown in Fig. l; . washing machine upon the ?oor. The lower ends Fig. 8 is a view of the operating knob and dial of the diagonally opposite diagonal supports II for the automatic control mechanism shown in Figs. 1 and 2: ‘ are connected by straps 26 having their extreme Pig. 4 is a sectional view of the’ water mixing 40 end portions It turned upwardly and fastened valve she in Fig. l; to the inner face of the sheet metal casing 2|. Fig.5isawiringdisgramforanautomatic The upper ends of the diagonally opposite diago nal supports 22 are connected to bowed connect control of a modi?ed form of washing machine; ‘ Fig. 6 is a form of clutch control for the modi ing members II which are fastened together by lied washing machine replacing the clutch con a rivet 82 at the intersection of the members ll. trol shown in Fig. 1: ' . The upper ends of the members II are each pro Fig. 'l is a view of the drlvingmotor and casing vided with an aperture which receives a stud ll including the modified clutch. control shown in ‘ at the end of a rubber connecting member ll Fig. 6; and extending from the ?ange it at the upper end Pig. 8 is a sectional view taken along the line of the motor casing 88. The rubber connecting H of Fig. 6. member ll resiliently locates the upper end of the motor mounting of the electric driving mo Brief description tor it within the framework provided by the diagonal supports 22 and the connecting Brie?y. I have shown a washing machine pro vided with a spinning basket containing s ro members. 2,411.0“a 3 The agitator and agitator drive The rotor of the electric motor 38 is provided with an upwardly extending shalt 42 having a thimble-shaped agitator ll threaded onto its 4 the bearing sleeve 52. The lower end of the sleeve ll below the bearing portion 8‘ is, as mentioned before, provided with a clutch plate Ii, This clutch plate I6 is splined or otherwise connected to the bottom oi’ the sleeve 54 so that it can move upper end. This agitator-‘44 has a wide tapered vertically, but cannot rotate with respect to the ?ange 46 forming a skirt portion and a post por sleeve 54. A clutch spring 86, retained by a re tion 48 provided with a spiral vane 50. when tainer ring Bl ?xed to the sleeve 54, is provided this agitator it is rotated at motor speed. the for holding the clutch plate ill at the bottom of water in the tub is churned to wash the clothes. 10 its lower limit of vertical movement relative to The tub spinning drive Surrounding the shaft 62 is a bearing sleeve 52 ‘the sleeve It. At its Periphery, the clutch plate It is provided with a clutch facing 99 normally held in engagement with a brake ring 92 which is provided within the housing of the motor 3!. Within the brake ring 92, there is provided a and surrounding the bearing sleeve 52 is a driving sleeve 55 connected at its lower end to a clutch plate 56 and at its upper end to a flanged con movable clutch disc 91 which is fixed to a. clutch nector member so which is fastened by means of collar 88 which, in turn, is splined or keyed to the plate so and the bolts t2 to the bottom of the the drive shell; 42.‘ This clutch collar 88 is pro spinning basket or tub es. vided with a groove engaged by a forked lever ill 20 which is pivoted to a. support i?l and connected The tub construction at its outer end by a link I!!! to the plunger of a This spinning basket or tub B5 is provided with solenoid magnet i0! anchored to a bracket i?'l an inner basket member 58 which includes an o?- ‘ set bottom portion B8 containing a plurality of drain apertures ‘ill. At the mldportlon oi the side of the basket member 68 are additional drain apertures 12. The upper portion of the basket member BB is tapered inwardly and provided with a strengthening ?ange ‘l4. ‘ extending irom the housing of the motor 38. The clutch plate 58 is provided with a second clutch racing I09 located within the con?nes o! the clutch lacing 90, so that when the solenoid'i?l is energized, the lever 98 will be pivoted in a clockwise direction to move the clutch disc into engagement with the clutch lacing iiil, thereby Surrounding the basket member ‘I is a ?ume clutching the driving motor 38 to the sleeve 84 member ‘I6 which Joins ‘the basket member 8' at 30 and the tub i4, and at the same time lifting the the bottom of the offset portion 08 to make a dou clutch facing 90 away from the brake ring ‘I. ble thickness 01' metal which extends between the when the solenoid i0! is deenerglzed, the clutch members 58 and iii and is clamped therebetwoen disc 94 will move downwardly, allowing the clutch ' by the bolts 82. The portion of the ?ume member facing 90 to again engage the brake ring I: to 18 beneath the apertures 12 is spaced from but stop the tub B4 and then the clutch disc 94 will closely conforms to the shape of the adjacent move away from the clutch facing I” to discon portions of the basket member 88. However, the nect the motor it from the sleeve 54 and the remaining portion of the dome portion ‘i6 tapers tub 84. It should be noted that the spring II outwardly slightly and at its upper edge is pro 40 is contracted more and tbereiore exerts a greater vided with an out-turned ?ange ‘i8. ‘ pressure when the clutch disc 84 hits the clutch This out-turned ?ange 18 extends over the dis plate 58 than when the clutch plate II is in en charge ?ume Bil which is provided upon the in gagement with the brake ring 92. This servesto side walls of the casing 20. The bottom wall 02 compensate for the smaller size of the clutch this discharge ?ume 80 is provided with a slope, racing I". Thus, by this construction, there is so that itdralns to one side where there is lo provided a'very simple means tor clutching the cated a. discharge pipe 82 which extends directly tab to the driving motor and tor stopping the tub. downwardly. Effect of rotation of agitator and tub The construction is such that i! the agitator H is rotated at motor speed and the tub member i4 held stationary, the washing ?uid in the tab will i be agitated in a doughnut-shaped The motor support The bottom 01’ the housing of the motor ‘3| is supported by supporting member Hi which, in turn, is supported by a bracket H2 held in place by the rivet 32. The connecting members 18 and 30 are sui?ciently ?exible to allow some move path. When the tub 81 is rotated, the washing 55 ment of the motor as and tub u with the cen- ' ?uid will be pumped out of the-?ame member ‘II ter of movement about in the location 0! the and thrown over its ?ange 18 into the discharge rivet 32. This will provide a means for absorb ?ume 80, from which the washing ?uid will be ing vibration within the rubber members ‘0. drained by the discharge pipe 82. This action The water supply system will pump the greater portion of the washing ?uid 60 from the basket member 88 through the apertures For supplying water or washing ?uid to the’ ‘id in the bottom of the tub so that the suds and tub 64, there is provided ‘a pipe H8 extending curds which ?oat on top of the water will be upwardly through the‘ bottom of the discharge drained through the, apertures 18 while the cloth home 80 and provided with a spout ill extend ing lies around the midportion oi the basket 65 ing over the rim ‘ll of the basket I} so as to dis member covering the apertures 12. The aper charge the water. or washing ?uid into the tub tures '12 are employed for providing a. means of 64. 'At the bottom vof the pipe H3, is provided‘ a escape tor the remaining portion oi’ the washing mixing valve II‘! which is shown in section in F18. fluid which cannot be removed through the aper 4. This mixing valve all is connected to a hot tures ‘N. water inlet pipe H9 and a. cold water inlet pipe“ “I. Within the housing of the valve H1 there .The clutch and brake construction is provided a butter?y valve I23 between the The upper-portion 88 of the housing of the connection to the hot water inlet pipe ill motor 38 is provided with a bearing section 84 and the cold water inlet pipe iii. This butter which surrounds and supports the sleeve 54 and 75 ?y valve I23 is actuated by a spiral bimetal ther» 9,411,0130 6 mostat I25 which is located adjacent the hot wa ter inlet pipe II9. This bimetal thermostat I25 The initial hot water charlie is so set as to hold the butter?y valve I23 open an amount su?lcient to mix the cold water and The contact arm I35 also conducts current to‘ the slide contact I“ and to the contact slide ‘ ‘ the hot water coming from the pipes I2I and H9 I41. This contact slide I41 is, in turn, connected by the conductor I3I to a bimetal timer I33 which plied to the pipe H3 and to the tub 34. cooperates with and operates between the con The hot water inlet pipe H9 is provided with tacts I55 and I31. The bimetal timer I53 in a solenoid valve I21 which is opened when ener cludes a cantilever-supported bimetal strip pro gized and closed when deenergized. The cold 10 vided with a snap-action spring at its free end water inlet pipe I2I is provided with a similar similar to the construction of the Lewerenz' Re valve I29. By this arrangement, when the cold issue Patent 16,654. The contact I35 is connect water valve. I23 is closed and the valve I21 is ed by a conductor I69 to a conductor HI. This opened, only hot water is discharged into the tub conductor “I has one end connected to a sole 54. However, when both the valves I21 and I29 15 noid I13 and extends to the supply conductor are opened, the butter?y vaive I23 will so pro I53 while the other end connects to the contact portion the amount of water flowing through the slides I15 and I11. When the contactor I35 has valve II1 that tempered water will be supplied to the slide contact MI in engagement with contact the tub 34. slide I41, and the bimetal timer I33 is in engage 20 ment with the contact I35, electric current will The automatic control system , ?ow from the conductor I55 through the contact so as to cause properly tempered water to be sup line I35, the contact slide “I, the conductor iii, An automatic control I3I provided with a con the bimetal timer I63, the contact I39 and the trol knob I33 upon the outside oi‘ the casing 23 conductor I1I, which includes a solenoid I13 to is provided for automatically controlling the washing machine. This automatic control, as is 25 the power source I53. This will cause the sole noid switch I19 operated by the solenoid I13 to better shown in Figs. 2 and 3, is so made that the close the circuit which includes the conductors knob I33 can be turned to any desired washing .I3I and I33, as well as the solenoid of the hot period from 1 to 15 minutes and the complete water valve I21 so that current will flow from the washing, rinsing and drying operations will be thereafter automatically performed, after which 30 source conductor I5I through the solenoid of the hot water valve I21 to the source conductor I53 the machine will be stopped automatically. As to open the hot water inlet valve I21. This cir shown in Fig. 3, indices “off,” “on” and “wash cuit, however, will only be maintained for a rela ing period" are provided on the outside of the tlvely short time until the tub 64 receives an ade cabinet which cooperate with the knob I33 pro vided with the indices “0,” “5,” "l0," and “15.” 35 quate supply of hot water. The amount of this supply is timed by the bimetal timer I53 which When the knob I33 is turned to the "off" position, when heated su?iciently will leave the contact everything is deenergized and the entire machine I35 and move into engagement with the contact is idle. In order to start the machine, the knob must be turned so that some point between the I51. indices "0” and “15" is placed opposite the wash 40 ing period. This will govern the length of time the clothes are washed. This knob I 33 is con nected to a rotatable contactor I35 which is shown in Fig. 2 in a position it assumes when the knob I33 is turned to start the machine. This rotatable contactor I35 is directly con nected to the knob I33 and also to a timing driv ing motor I31 which is preferably of such a type having a relatively constant speed and prefer ' The washing period When this is done, the curernt will then flow through the conductor I35 including solenoid I31 to the supply conductor I53.’ This will close the solenoid switch I33, thereby completing the cir 5 cult from the conductor i5I through the con ductors I3I and 193 and through the driving mo tor 33 to the supply conductor I53. This will cause the driving motor 33 to rotate the agitator 44 at motor speed. This agitator 44, through its ably it is somewhat similar to the motor of an 50 spiral vane 53, will cause agitation to take place electric clock. This contactor I35 is provided at all points within the tub. The tub 34, however, with ?ve sliding contacts designated by the ref at this time will remain stationary because of erence characters I“, I42, I43, I44 and £45. the engagement oi’ the clutch facing 35 with the brake ring 32 under the in?uence of the spring The timing driving motor 55 33. The contact I 4| is shown in engagement with All during the washing period, the length of the stationary contact slide I41. The sliding which is governed by the initial setting of the contact I45 is shown in engagement with the con knob I33 and the contact arm I35, the motor tact slide I49. The conductors IN and I53 con 33 will remain energized to agitate the clothes. nect to a suitable source of electric energy. The 60 When the knob I33 is set for the full ?fteen min conductor I 5I is, in turn, connected'by the con ute washing period, the contact arm I35 will be ductor I55 to the rotatable contactor I35. This gin at the lower end of the slide I41. For a lesser rotatable ccntactor I35 provides an electrical period, the contact arm I35 will be initially set connection with the sliding contact I45 and the at an intermediate point upon the slide contact contact slide I43. The contact slide I43 is, in I41. When the contact arm, which is continu turn, connected to the conductor I51 which, in ously rotated by the motor I31, reaches the end turn, connects to the timing driving motor I31 01 of the slide contact I41, the solenoid I31 will be an automatic control. This timing driving mo deenergized. thereby opening switch I33 and de tor I31 is, in turn, connected by the conductor energizing motor 33. I59 to the supply conductor I53. This will start 70 The first spinning Operation and keep in operation the timing motor I31 for the duration of the entire washing, rinsing and A short time after this, the contact III will drying operations, since the contact slide I49 is ' engage the contact slide I33 which is conncted by su?iciently long to keep this circuit closed a conductor I35 with a conductor I35 and the throughout these operations. solenoid I31 so that the solenoid M1 and the 9,411,860 7 motor II will ‘be again energized and start op eration of the motor. However, at this time also, the contact Il2fwill also engage the contact slide _ switch 222 which will close an electric circuit to allow current to ?ow from the supply conductor I5I through the conductors 224 and 229, as well I91 which is connected by the conductor I99 to as the solenoid oi’ the cold water valve I29 to the supply conductor I59 for allowing both hot the solenoid 292, and the solenoid switch 294, which will allow electric current to how from the and cold water to ?ow to the mixing valve I" source conductor I5l through the conductors 206 which will mix the hot and cold water so that and 298 to energize the clutch solenoid I05. This tempered water will be supplied to the tub. will raise the clutch collar 95 and cause the The second rinsing , clutch disc 94 to engage the clutch facing I59 10 When the contact arm I35 reaches the end of and lift the clutch facing SII oi‘! the brake ring the contact slides Ill and 2l6, the contact “I 92 so that the tub 64 is released from the brake will engage another contact slide 228 which will ring and is clutched to the motor 98 in a direct connect through the contact slides 2I2, 2I9 and drive so that it rotates at motor speed along with I9! to the conductors I95 and I85 to again en the agitator 44. This will cause the centrifugal ergize the driving motor 38. This will again op draining of the basket member Iill largely through erate the agitator I“ so as to agitate the clothes the outlet apertures ‘III, as mentioned before, in tempered rinse water. when the tub H was described. This continues for a period of about ?ve minutes in proportion The final drying period to the length of the contact slide I93 so that the 20 There is a brief interval provided between the tub 64 is completely emptied and the clothes contact slide 229 and the next contact slide 230 dried. which is also engaged by the slide contact “I The second hot water charge and is connected to the contact slide 229. This After this, the contact arm I35 continues to again energizes the driving motor 39. Another 25 move and the contact I“ makes engagement contact slide 232 is provided which is engaged with the contact I15 while the only other contact at the same time by a slide contact “2 which is active is the contact I45. This allows direct cur rent to ?ow from the contact arm S35 through connected to the contact Slides 2“ and I9‘! in order to energize the clutch solenoid Hi5 to re the conductor Ill and the solenoid I13 to again close the circuit of the hot water valve I21 to allow hot water to flow again into the tub 5‘. At this time. the amount of hot water is con trolled by the length of the contact slide I15. When the contact arm I35 reaches the end of this contact slide Il5, the supply of hot water is lease the tub 54 from its brake and to clutch the tub to the driving motor 38. This will operate the agitator M and the tub N at motor speed in order‘ to remove the water from the tub N and dry the clothes. shut oil by the deenergization of the solenoid oi the valve I21. The ?rst rinsing In Figs. 5 to 8, I have shown a modi?ed sys Modi?ed form I tem which includes a reversing motor and a clutch mechanism operated by the reversing of At the same time, the contact III again makes 40 the motor to control the spinning of the tub. As is best shown in Fig. 7, the modi?ed reversing engagement with a contact slide 2Iil which is motor and motor housing 30! has the motor shaft connected to the contact slide I93 and, in turn, 299 provided with a clutch ‘operating pin 305. is connected to the'solenoid I91 oi the switch the opposite ends oi’ which extend and ride with I99 to close the circuit of the motor 99. This will cause agitation of the clothes in iresh hot 45 in inclined slots 30‘! provided in a modi?ed clutch collar 309. When the motor operates in one di water to give the clothes 9, hot water rinse. When rection, the pin will move into the upper end at the end of about ?ve minutes, the contact of the slot and cam the clutch disc 94 down arm I35 reaches the end of the slide contact 2I9. wardly so that the clutch plate 58 will have its the motor 38 is stopped for an interval of about outer facing 90 resting upon the brake ring 92, one minute. The second drying period After this, the slide contact III again makes engagement with a contact slide 2I2 which is in series with the contact slides m and I99 for again energizing the driving motor 38. At this time, the contact I42 is in engagement with the contact slide 2 I4 which is connected in series with the contact slide I91 to again energize the sole thereby stopping and preventing rotation of the tub 6 . . When the motor 30I operates in the opposite direction, the pin 305 will ride to the lower end of the slots 391, thereby elevating the disc 94 into engagement with the clutch lacing I99, thereby raising the clutch facing 99 from the brake ring and clutching the tub to the driving motor. This will cause the rotation in the reverse direction of the tub 59 along with the agitator ll, making it possible to centritugally remove the water and dry the clothing in the tub. This movement of the pin 355 in the slots 30‘! takes place by reason of the inertia oi the clutch disc The tempered water charge 9‘ which may be weighted at its rim to increase When the contact arm I35 reaches the end 65 its moment of inertia and the sudden start or of the contact slides H2 and 2“, the contact the motor. a Ill, after a. brief interval, will make engagement - The modified automatic control with the contact slide I'll which closes the cir cuit oi’ the conductor III to energize the solenoid A modi?ed form of automatic control is shown I19 of the switch I19 to energize the solenoid '10 in Fig. 5 for this reversing type motor and clutch of the hot water valve I21 to open this valve. At mechanism. This is operated by the knob shown in Fig. 3 and is fastened to the casing as shown the same time, however, the contact I“ will make contact with the contact slide 2I8 which in Fig. 1. This automatic control is connected will close the circuit through a conductor 2|. to the supply conductors III and ill. The sup which includes a solenoid 220 for closing the 75 ply conductor ill connects to a contact slide III noid I95 to clutch the tub to the driving motor, in order to spin the tub and remove the hot rinse water. 2,411,9e0 . . 11 l2 The second rinsing Shortly after this, the contact 32! engages an- > V for supplying the tub with washing iluid, means for agitating the eontentsoi the tub, a two-way alternative control device for selecting either the other contact slide 381 which is connected in supply means or the agitating means, manually series with the contact slide 315 for causing the motor "I to operate in the iorward direction so 5 settable means for selectively varying the sum total time of operation of both of said means, a as to rotate the agitator 44 at motor speed. thermal device operable upon the-attainment of The ?nal drying period a predetermined temperature for controlling When the contact 32! reaches the end of the ‘ said alternative device to control the change contact slide 381, after a short interval, the con 10 from the supply means to the agitating means, test 324 will engage the contact slide it! which and means for electrically heating saidthermal is connected in series with the contact slides "i device concurrent with the supplying of washing ?uid. and I59, in order to cause the motor till to oper ate in the reverse direction, thereby clutching 2. A washing machine including a tub, means ' the tub 64 to the motor lill to expel the water 15 for supplying the tube with washing ?uid, means and dry the clothes by centriiugal action. The contact slide 363 is made suiilciently long to properly dry the clothes. Summary - Thus. I have provided awashing machine in which the agitator and the tub are directly connected to the driving motor to provide agita tion and centrifugal drying at motor speed. Preferably, some form of motor preferably oithe ' induction type' is provided, having a maximum speed of not over nine hundred R. P. M. For . the reversing motor 3M, it is desirable that the for agitating the contents of the tub, manually settable timing means i'or selectively varying the’ duration of the agitation, and a thermal device separate from said settable means for 20 timing said supply means, said thermal device being operable upon the attainment of a pre determined temperature, and means for elec trically heating said thermal device concurrent with the supplying of washing ?uid. 3. A washing machine including a tub, means for supplying the tub with washing ?uid includ ing electrical control means, electrically oper ated means for agitating the contentsoi the tub, motor have a high starting torque, so as to better a two-way alternative electrical supply means operate the clutch collar at through the me 30 for alternately supplying electric energy to-elther . dium of the pin SI! and the inclined slots Ill. the electrical control. means or the electrically It will be seen that the mechanism is very simple operated means. said supply means incorporat as compared to most other machines, and tree ing a thermal mean's operative upon reaching a from likelihood of mechanical failure. predetermined temperature and a means for elec While the form of embodiment of the inven trically heating said thermal means coincident tion as herein disclosed, constitutes a preferred ally with the iiow of current through the supply form, it is to be understood that other forms means for causing it to move from supplying might be adopted. as may come within the scope the electrical control means to supplying the of the claims which follow. electrically operated means. ' What is claimed is'as iollows: 1. A washing machine including a tub, means JOHN B. DYER.