US2757530A - Laundering device - Google Patents

Laundering device Download PDF

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US2757530A
US2757530A US317655A US31765552A US2757530A US 2757530 A US2757530 A US 2757530A US 317655 A US317655 A US 317655A US 31765552 A US31765552 A US 31765552A US 2757530 A US2757530 A US 2757530A
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rotor
fabrics
container
rollers
laundering
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US317655A
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Byron C Gould
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Murray Corp
Murray Corp of America
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Murray Corp
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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
    • D06F21/00Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement 
    • D06F21/02Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement  about a horizontal axis
    • D06F21/04Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement  about a horizontal axis within an enclosing receptacle
    • 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 for centrifugally separating water from the laundry 
    • D06F23/02Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a horizontal axis

Definitions

  • This invention relates to laundering machines, and more particularly to a laundering machine which washes, dampdries, and completely dries the fabrics in a single cycle of operation.
  • Figure l is a side View in front elevation of a laundering machine embodying features of this invention.
  • Fig. 2 is an enlarged broken side view of the structure illustrated in Fig. l; i t
  • Fig. 3 is an enlarged, sectional view of the structure illustrated in Fig. l, taken along the line 31-3 ⁇ thereof;
  • Fig. 4 is a sectional view of the structure illustrated in Fig. 3, taken along the line 4--4 thereof;
  • Fig. 5 is a view of structure, similarito that illustrated in Fig. 3, showing another form thereof, and
  • Fig. 6 is a broken front View of the structure illustrated in Fig. 5.
  • the present invention employs a similar type of rotor, driven in rotation at a speed which raises the fabrics to a point near the top of the rotor at which they drop off into a squeeze mechanism, herein illustrated as a pair of driven rollers through which the fabrics are drawn to produce a squeeze operation ⁇ thereon which more completely removes the dirt from the fabrics and thereby substantially reduces the washing time.
  • the squeeze mechanism is so located that the fabrics, when saturated with cleansing iiuid, will drop onto the mechanism and pass therethrough. After the ⁇ liquid has been drained from the container and the fabrics have been squeezed through the rolls, they will be carried by the rotor beyond the point of saturation drop-off and will drop beyond the squeeze mechanism and will not pass therethrough dur-v ing the drying operation.
  • This largervolume rotor permits the squeeze mechanism of the present invention to be oifset upwardly so as to provide a large access opening for the insertion and removal of thelfabrics from the front face of the rotor and liquid container.
  • the squeeze mechanism is employed, there is no necessity for increasing the speed of the rotor since extraction takes place through this mechanism rather than through the peripheral wall of the rotor as has been the conventional practice when centrifugally extracting water from the fabrics.
  • a laundering machine of the present invention comprising a cabinet 10 having an access door 11, which is herein illustrated as of D-shape, mounted in the front face thereof.
  • a water temperature control knob 12 and a cycle control knob 13 are mounted on the front face of the cabinet above the door and a removable top cover 14 is secured on an ornamental bead 15 about the top edge of the cabinet.
  • Adjustable feet 16 are secured to the inner frame of the cabinet by which the machine may be leveled on a oor.
  • the cabinet 10 is mounted upon a base 17, preferably of chau nel construction, having angle-shaped uprights 18 mounted thereon to which side flanges 19 on a container 21 are secured, herein illustrated as by bolts 22.
  • the container has a front face 23, a peripheral wall 24, which may be separate elements or which may be provided in unit relation as herein illustrated.
  • the rear edge of the peripheral wall 24 has an outwardly directed flange 25 to which a rear panel 26 is secured by a channel band 27 having a U-shaped sealing element 28 disposed therein.
  • the adjacent edges 29 of the band are drawn together in some suitable manner, herein illustrated as by bolts 31.
  • the rear wall 26 has a bearing sleeve 32 secured thereto in which a sleeve bearing 33 is rotatably mounted.
  • the sleeve bearing is secured to a spider 34, 'the ends of which are attached to a rotor 35.
  • the opposite end of the sleeve 33 has a pulley 3:6 secured thereto by suitable mea'ns, herein illustrated as by a setscrew 317.
  • a bearing sleeve 38k is positioned internally of the sleeve 33, having its inner end secured to a spider 39, the outer ends of which are attached to a plate 41 supported in aligned relation to the rear wall 42 of the rotor.
  • the plate 41 is circular in shape, having its peripheral 'edge flanged rearwardly at 43 in spaced relation to 'a rearwardly extending cylindrical flange 44 on the rear ⁇ wall 42 of the rotor.
  • a flange at the edge of the spider 34 is secured to the flange 4'4 and a ring 45 is secured thereover, for a purpose which will rbe explained hereinafter.
  • a spider 46 yhas its peripheral edge releasably secured to thev rear wall 26 by nuts 47 which' 'are threaded upon studs 48 which are welded or otherwise secured to the it and to a channel member 56 disposed therea'cross for supporting 'a motor 57 by bolts 58V which extend through slots-in the plate 55, permitting the motor to 'bef shifted for tightening lthe belts 59-a ⁇ n'd 61 which connect the pulley's 62' vand -63 on the Imotor shaft 64 tothe pulleysl 36 and 54 in the conventional manner.
  • 65 may be secured to the plate 55, having a bearing in its upper ⁇ end for supporting the end 'ofthe shaft ⁇ 64.
  • the ⁇ front wall 66 of the rotor-'35 has a-'central opening defined by an outwardly extending flange 67 -on the youter face of which 'a ring 68 is secured which is similar to the ⁇ ring '45 on the flange-of the rear wall-of the rotor.
  • the rotor is disposed within the container or ltub 24-and is supported therein on pairs of wheels 69 and 71 on'the front and rear walls of the rotor, respectively.
  • the wheels are Vmounted on shafts supportedonstampings I72, having a flange 73 which is welded ito the inner face of the front and rear Walls of the container or tub 24.
  • the wheels support the ⁇ rotor which is driven bythe spider 34 through the sleeve 33 and the ypulley ⁇ 36.
  • the plate 41 has a bearing 74 in which one ⁇ end of a shaft 75 is journaled for rotation by a pulley 76 which is secured to the shaft.
  • the pulley is driven lby a belt 77 from the pulley 53, the belt havinga spring-pressed idler pulley 78 disposed in engagement therewithforttene sioning the belt and preventing the 'slippage thereof.
  • the plate 41 is provided with a slot 79 in which a bearing block 81 is mounted for movement 'toward vand away from the shaft 75.
  • Slot's82 are y'provided on each side face of the blocki'n which the 'wall portion at 'the "en'ds of the slot extends.
  • the slot 79 is wider at the end adjacent tofthe shaft 75 to permitthe assembly of :theblock inthe slot.
  • the block'at ythe rear side ⁇ of the 'plate has a stud 83 extending therefrom, the outer end of whicherttends through anaperture infabrac'ket 84 ⁇ a ⁇ gainst which aspring 85 abuts when mounted about the stud 83 for urging the blck-towardtheshaft-7S.
  • YA shaft 8'6 isfjournalediin'vthe block '81,Ltleshathaying iafroll'er Jr87"-se"c1'1red thereto
  • An outboard bracket lil yin engagement with a roller 88 which is secured to the shaft 75.
  • the rollers are preferably made of rubber, plastic or similar material which may have various degrees of hardness depending upon the amount of pressure to be applied to the fabrics passing therebetween.
  • a plate 91 fits into the top portion of the circular opening 92 in the front Wall of the container or tub 24 to which it is secured by suitable screws or bolts.
  • the plate 91 has an arcuate flange 93 spaced from the flange 67 of the rotor,- with the face 94 of the plate disposed in alignment with the front face 66 of the rotor 33.
  • a chordal flange 95 defines the upper limits of the access opening 92 to the interior of the rotor.
  • a bearing 96 is disposed in the wall 94 for supporting the forward end of the shaft 75, and a bearing block 97 is provided in the slot in the wall to support the forward end of the shaft 86.
  • This bearing block is mounted in a slot 79, the same as the block 81, and has a stud 83, bracket 84 and spring assembled therewith in the same manner as above described.
  • a washer 98 preferably of nylon or other bearing type of material, is provided at the ends of the rollers 87 and 88 to vsubstantially eliminate all of the friction between the ends of the rollers ⁇ and the walls 41 and 94 ⁇ while providing engagement therebetween for preventing the fabrics from being caught between the roller ends and the inner wall faces.
  • the roller 87 is spring pressed against 'the roller 88 at ⁇ both ends and may be moved yrelative thereto while providing a predetermined pressure to the vfabrics passing therebetween.
  • the peripheral wall 101 i's perforated, being made lof material having a plurality of apertures provided therethrough or made 0f a screen material, as is the conventional practice in drying machines.
  • the front and rear walls 42 and 66 are spanned by laterally extending, inwardly projecting vanes 102 which engage yand pick up thel fabrics -at the bottom of the rotor and carry 'them up the left-hand side ofthe rotor as it is being driven in a clockwise direction. Near-the top of such .movement the fabrics tumble onto the top of the rollers 87 and '88 when saturated with cleaning liquid provided in the bottom portion yof ⁇ the container 24.
  • the Ifabrics will pass betweenv the rollers and the liquid and dirt particles will be squeezed 'therefrom so 'that the fabrics will be cleaned in a Very short time due to vthesqueezing operation thereon.
  • the liquid and 'particles squeezed from the fabrics will flow over the rollers fand 'also from the trough formed therebetween lthrough the 'apertures ⁇ 79 back vinto the bottom vof the container 24.
  • the bottom of the container has a sump 103 connected by Iasolenoid-operateddrain valve'10 ⁇ 4 to a conduit 105 which isdire'ctly connected to a drain or a tank or "conne'cted thereto ⁇ through la pump, as is' the conventional practice.
  • a conduit 105 which isdire'ctly connected to a drain or a tank or "conne'cted thereto ⁇ through la pump, as is' the conventional practice.
  • the fabrics will be carried'beyond thepoin't'on the peripheral wall from'which they:drop, when saturated, to a'fhigher point and thereby will be dropped from the wall along a trajectory which carries the ffabrics beyond lthe roller 87 so that they will not pass betweenVl therollers during the drying operation.
  • Thiscarfrying-overof Athe frabrics occurs fortwo 'reasons -first, because the fabrics are lighter when not saturated with-theiluii'and second, because Va -slight increase in the rotor speed occurs upon the removal ofthe fluid which caused a drag on the rotor when present during .the washing or cleansing operation.
  • unnecessary wear on the"fabri ⁇ cs" isavoidedafter -the washing orl cleansing operationhas occurred.
  • uiiiquj'e :system is provided for drying .thefabrcs wl'iicli 4is similar 'tdthatillustrated and described in""th" ⁇ e' depending application of William E. Stilwell, Jr., Serial No. 266,050, led January 1l, 1952, and assigned to the assignee of the present invention.
  • This system operates on the principle of recirculating air near its saturation point and at a high temperature and maintaining the ternperature and water content at the high level throughout the drying time. It was found from experiment that the drying time is reduced more than one-half that required when ambient air is heated, passed through the rotor and discharged into the atmosphere, as has been the common practice in the art.
  • a blower 106 is mounted on the container 24 or elsewhere within the cabinet 10, driven by a motor 107 ⁇ which is herein illustrated as directly attached to the blower.
  • An intake conduit 108 extends to an intake housing 109 at the front face of the container, a major portion of the recirculated air being drawn therein from an aperture 111 in the front face of the container.
  • the air is exhausted from the blower through a conduit 112 in which a heating unit 113 is mounted.
  • This heating unit has a capacity of substantially 4500 watts when energized from a 230-volt circuit and has a rating of substantially 1500 watts when current is supplied from a 115- volt circuit.
  • an accumulator 114 may be provided about the heating element 113 for storing heat during the time of the washing or cleansing operation to be available after the lluid has been drained from the container for heating the saturated fabrics to a high degree of temperature which aids in the extraction of the fluid therefrom and the rapid drying thereof.
  • the heated air is delivered to the container 24 through an aperture 115 in the rear wall 26 thereof.
  • An air duct 116 is connected to the right-hand wall of the sump 103, as illustrated in Fig. 4, which passes along the peripheral wall and forwardly, as illustrated in Fig. 3, to connect into the housing 109 through the opening 117 in the rear face thereof. Between 20% and 30% of the air passing through the blower 106 is drawn through the duct 116 and mixed with the air drawn from the aperture 111, in the front face of the container 24. The air drawn through the duct 116 passes through a water spray 118 provided by a spray tube 119 located in a recess in the outer wall of the duct, as illustrated in Fig. 4.
  • the water spray 118 condenses a portion of the water in the moisture-laden air and the amount thus removed substantially equals the amount being picked up by the air, so that the combined air, after being heated, has a substantial ainity for the moisture within the fabrics and rotor which is readily picked up thereby.
  • the circulated air is maintained at a high temperature with a high moisture content which maintains the fabrics and the interior of the rotor at a high temperature which, as found from experiment, substantially reduces the drying time.
  • the present laundering machine therefore, is capable of washing and completely drying a load of fabrics in substantially the same time that laundering machines known in the art wash and extract water from the fabrics, with the laundered fabrics retaining substantially 100% water by weight.
  • a temperature control water intake valve 121 and suitable circuits are provided for timing the admission of water, operating the control valve and the blower and starting and stopping the motor 57 in the conventional manner, so that the complete operating cycle of washing, rinsing, extracting and completely drying the fabrics may occur during a single cycle of operation of the machine.
  • FIG. 5 another form of the device is illustrated, that wherein the roller 88 is mounted on the axis of the rotor 122 to simplify the construction while providing a suicient access opening about the roller 88.
  • the forward plate 123 is constructed as a quadrant to increase the area of the access opening from the bottom upwardly at each side of the roller 88.
  • the roller 87 is mounted in a similar manner as herein- 6 above noted, the rear end of the shaft 86 being journaled in a slidable block 81 in a slot 79 in a plate 140.
  • the plate is recessed in the rear wall 142 of the rotor and is secured to a sleeve 143.
  • the sleeve 143 is releasably secured to a bushing 144 on a spider 145 the arms of which are secured to the container by volts, as in the construction illustrated in Figs. 1 to 4 above described.
  • the stud 83, bushing 84 and spring 85 are provided for the blocks 81 at the front and rear ends of the shaft 86 on the outside of the plates 123 and 140, as in the construction described above.
  • the only difference between the embodiment illustrated in Fig. 5 and that in Figs. 1 to 4 is the disposition of the roller 88 directly on the axis of the rotor, with the rotor supported on the bearing on the rear wall of the container rather than on the wheels 69 and 71.
  • rollers may be mounted in offcenter relation to the rotor axis or that one of the roller shafts may be mounted in alignment therewith.
  • the tubular extension on the rear wall 124 of the container 120 has bearings 125 which engage a sleeve 126 extending rearwardly from the rotor 122.
  • the sleeve 126 rotates on the sleeve 143 and a shaft 127 is journaled within the sleeve 143, having a spline 128 engaging spline ways within a sleeve 129 to which the roller 88 is secured.
  • the end of the shaft is journaled in a bearing 130 secured to the plate 123 and a screw 131 in the end of the shaft 127 prevents the shaft from moving rearwardly in the sleeve 129.
  • a pulley 132 is connected to the sleeve 126 and a pulley 133 is connected to the end of the shaft 127.
  • the pulleys are driven from belts 134 and 135 from pulleys 136 and 137, respectively.
  • the pulleys are mounted on a shaft 138 of a motor 139 which is suitably supported on a plate 141 on the base frame 17 of the cabinet.
  • An outboard support 149 may be provided on the end of the shaft 138, the support being attached to the base frame.
  • roller 88 is driven at a faster angular speed than the rotor so that the peripheral speed of the roller 88 is at least equal to that of the rotor, to make sure that the fabrics will not pile up on the rollers as they are delivered thereto.
  • a wiper blade 147 is provided in engagement with the surface of the roller 88 across the entire length thereof and that a similar wiper blade 148 is ⁇ provided in engagement with the roller 87.
  • the ends of the blades may be supported on the plates 41 and 91 of the structure illustrated in Figs. l to 4 ⁇ and on the Walls 123 and of the structure illustrated in Figs. 5 and 6.
  • the blades may be supported on ngers 146 extending from the friction washers 98 at the ends of the roller when the washers are secured against rotation to the plates.
  • the blades are mounted in a position to engage and wipe the uid from the rollers and also to prevent any of the fabrics from adhering to the rollers and being carried around thereon as sometimes occurs during wringer roll operations.
  • an air circulating system, water inlet and drain. valves, shaft sealing washers, and other features of the machine illustrated in Figs. 1 to 4 may be employed on. the machine illustrated in Figs. 5 and 6.
  • a laundering machine having, in combination, a rtatable rotor having a fixed plate at one end, a liquid container encompassing said rotor, a pair of squeeze rollers within said rotor having one end supported on the plate and the other end on the container, means for driving said rotor and rollers, means on the rotor wall for raising the fabrics therewithin, and drain means on said container, the position of said rollers and the speed of the rotor being such that the latter is in the path of the fabrics when dropped from the wall in the presence of uid within the container and being out of the path of the fabrics when dropped from the wall when the iluid has been removed from the container.
  • a laundering machine including, in combination, a support, a rotor having a fixed end plate rotatably mounted on said support, a container encompassing said rotor, means for rotatably driving said rotor at a substantially constant speed, means within said rotor for carrying the fabrics from a point adjacent the bottom thereof to a point adjacent the top thereof, fabric squeezing means within said rotor having its opposite ends supported on said end plate and on said container respectively and located in a position to receive the fabrics dropping from the rotor when the fabrics are saturated with cleansing liquid and which pass therebeyond when not so saturated.
  • a laundering machine including, in combination, a liquid container, a rotor having a xed end plate rotatably supported within said container, said container having a perforated peripheral wall adapted to be partially immersed in a liquid within the container, means for driving said rotor at a constant speed, means on the inner portion of the container for carrying the fabrics upwardly near the top of the rotor from which they drop at a point depending upon the liquid content thereof, a pair of wringer rolls rotatably supported within said rotor with opposite ends supported on said plate and container respectively located in a position to receive the fabrics dropping from the peripheral wall when the fabrics are saturated with liquid and beyond which the fabrics drop after the liquid has been squeezed there- A from, and means rotatably driving at least one of said rolls at a constant speed in angular rotation substantially in excess of the speed in angular rotation of the rotor.
  • a laundering machine including, in combination, a liquid container, a rotor having a xed end plate rotatably supported Within said container, said container having a perforated peripheral wall adapted to be partially immersed in a liquid within the container, means for driving said rotor at a constant speed, means on the inner portion of the container for carrying the fabrics upwardly near the top of the rotor from which they drop at a point depending upon the liquid content thereof, a pair of wringer rolls rotatably supported within said rotor with opposite ends supported on said plate and container respectively located in a position to receive the fabrics dropping from the peripheral wall when the fabrics are saturated with liquid and beyond which the fabrics drop after the liquid has been squeezed therefrom, and means rotatably driving at least one of said rolls at a peripheral speed which is substantially equal to that of the peripheral speed of the rotor.
  • a laundering machine including, in combination, a liquid container having a front an-d rear wall joined by a peripheral wall, with the front wall containing an opening, a. pair of rollers on the front and rear walls, a rotor having a peripheral wall joined by front and rear walls containing openings about which rings are provided resting upon said rollers, a plate extending into the opening in the rear wall of the rotor and mounted in fixed relation relative to the container, means for driving said rotor on said rollers, a pair of wringer rolls supported for rotation on-said plate and on the front wall of said container, and means for driving said rollers.
  • a laundering machine including, in combination, a liquid container having a front and rear wall joined by a peripheral wall, with the front wall containing an opening, a pair of rollers on the front and rear walls, a rotor having a peripheral wall joined by front and rear walls containing openings about which rings are provided resting upon said rollers, a plate extending into the opening in the rear wall of the rotor and mounted in xed relation relative to the container, means for driving said rotor on said rollers, a pair of wringer rolls supported for rotation on said plate and on the front Wall of said container, and means for driving said rollers, said rollers being supported in off-center relation to the center of said plate and rotor in position to receive fabrics saturated wtih liquid when tumbled from the peripheral wall of the rotor as the rotor is driven.
  • a laundering machine including, in combination, a liquid container haivng a front and rear wall joined by a peripheral wall, with the front wall containing an opening, a pair of rollers on the front and rear walls, a rotor having a peripheral wall joined by front and. ⁇ rear ywalls containing openings about which rings are providednresting upon said rollers, a plate extending into the opening in the rear wall of the rotor and mounted in fixed.y ri-llation relative to the container, means for driving said rotor on said rollers, a pair of wringer rolls supported for rotation on said plate and.
  • rollers on the front wall of said container, means for driving said rollers, said rollers being supported in off-center relation to the centerio'f said plate and rotor in position to receive fabrics saturated with liquid when tumbled from the peripheral Wall of the rotor as the rotor is driven, and wiper blades mounted within the rotor in engagement with said rollers.
  • a laundering machine including, in combination, ay
  • liquid container a rotor rotatably supported within said container and encompassed thereby, said rotor having a perforated peripheral wall, means for mounting a pair of rollers within said rotor with the axis of one of said rollers disposed on the axis of the rotor, and meansl for driving said rotor and rollers simultaneously.
  • a laundering machine including, in combination, a liquid container, a rotor rotatably supported within said container and encompassed thereby, said rotor having a perforated peripheral wall, means for mounting a pair of rollers within said rotor with the axis of one of said rollers disposed on the axis of the rotor, means for driving said rotor and rollers simultaneously, and a plate mounted on the front of the container for supporting the front end of the rollers thereby providing a large access opening at the bottom and sides of the roller for the removal and insertion of the fabrics.
  • a laundering machine including, in combination, a rotatable rotor provided, with meansgtherein lfor raising the fabrics and tumblingthern therewithin,fadiquidcontainer encompassing said rotor, apair effi-squeeze'rollers- ⁇ within said rotor mounted on shafts lconfined-withinsaidy container, means for driving one of said rollers, means for biasing said other roller toward said driven roller mounted on the exterior of the rotor, and means for driving said rotor and rollers.

Description

Pf if f f m f N d N 6 .Y m v F M/ M -Il l .m 2 ..HI |l|l|, r A ff; l M HLIIIII. Q .Y 7H ||H.J |||||I 7 B f. 5 i @i M f M f| ll \IM l l I l ,l M\|\ l I Il 9 M Mug., V, 1956 Filed oct. 50, 1952 Aug Y, 1956 B. C. GOULD 2,757,530
LAUNDERING DEVICE Filed OCT.. 50, 1952 4 Sheets-Sheet 2 INVENTUR. ,5g/*6x7 2A/Zd',
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m Y w56 B. c. GOULD LUNDERING DEVICE Filed OCT.. 30, 1952 4 Sheets-Sheet 3 www /6 Mw 7, 1956 B. C. GOULD 2,757,530
LAUNDERING DEVICE Filed oct. so, 1952 4 sheets-Sheet 4 Q v y United States Patent O LAUNDERING DEVICE Byron C. Gould, Detroit, Mich., assignor to The Murray Corporation of America, Detroit, Mich., a corporation of Delaware Application (letober 30, 1952, Serial No. 317,655
li) Claims. (Cl. 68-22) This invention relates to laundering machines, and more particularly to a laundering machine which washes, dampdries, and completely dries the fabrics in a single cycle of operation.
It is an object of this invention to provide an improved laundering machine lof the horizontal axis rotor type which incorporates wringer rolls therewithin upon which the fabrics drop from the peripheral wall of the rotor and pass therethrough during the washing cycle of operation.
It is a further object of this invention to provide a laundering machine of the aforementioned type in which the rotor is driven at a low constant speed at all times as the fabrics are washed and completely dried in an efficient and rapid manner.
It is a still further object of the invention to provide a laundering machine of the aforementioned type wherein the wringer rolls are so located that the fabrics pass therethrough When saturated with the cleansing liquid-and are carried beyond the rolls so as not to pass therethrough after the liquid has been withdrawn and the fabrics are no longer saturated.
It is a still further object of the invention to `provide a laundering machine of the aforementioned type in which the fabrics being laundered will pass through the wringer rolls when saturated with liquid and will pass therebepond when heated from a heat transfer source provided in the machine. A
It is a still further object of the invention to provide a laundering machine of the aforementioned type which is completely automatic in operation, one which is relatively inexpensive to manufacture, efficient and durable in operation and construction, easy to repair and maintain, and which requires the operator to handle fabrics only in their dry state.
These and other objects of this invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings,` in which:
Figure l is a side View in front elevation of a laundering machine embodying features of this invention;
Fig. 2 is an enlarged broken side view of the structure illustrated in Fig. l; i t
Fig. 3 is an enlarged, sectional view of the structure illustrated in Fig. l, taken along the line 31-3` thereof;
Fig. 4 is a sectional view of the structure illustrated in Fig. 3, taken along the line 4--4 thereof;
Fig. 5 is a view of structure, similarito that illustrated in Fig. 3, showing another form thereof, and
Fig. 6 is a broken front View of the structure illustrated in Fig. 5.
Heretofore in the art, when constructing, laundering machines of the horizontal axis type, the vfabrics were carried upwardly by varies disposed across the peripheral wall on the interior of the rotor from which they tumbled and fell substantially across the diameter of the rotor into the water at the bottom thereof, producing awashing action. While this action was not too satisfactory, after the lapse of sucient time the fabrics became 2,757,530 Patented Aug. 7, 1956 2 cleansed to a degree which was acceptable to the operator.
The present invention employs a similar type of rotor, driven in rotation at a speed which raises the fabrics to a point near the top of the rotor at which they drop off into a squeeze mechanism, herein illustrated as a pair of driven rollers through which the fabrics are drawn to produce a squeeze operation` thereon which more completely removes the dirt from the fabrics and thereby substantially reduces the washing time. The squeeze mechanism is so located that the fabrics, when saturated with cleansing iiuid, will drop onto the mechanism and pass therethrough. After the `liquid has been drained from the container and the fabrics have been squeezed through the rolls, they will be carried by the rotor beyond the point of saturation drop-off and will drop beyond the squeeze mechanism and will not pass therethrough dur-v ing the drying operation. With such an arrangement,y only a small number of passes of the fabrics through the: squeeze mechanism will take place and this will occurv only during the washing and rinsing operations in thel presence of fluid in the container in which the rotor isdriven. The carrying of the fabrics beyond the wringer rolls in the absence of liquid in the container eliminates; wear on the fabrics which would otherwise occur and permits the fabrics to spread out as they are tumbled! to be more readily subjected to the flow of heated moist. air which produces the rapid drying. It is contemplated. that the machine will be employed for performing a complete laundering operation on the fabrics-washing, rinsing, damp-drying and drying, so that the operator placing soiled dry clothes within the rotor will remove clean dry clothes therefrom after the laundering operation.
Since twice the cubic contents of a rotor is required for drying than that required for Washing, and since a six to eight pound dry load of soiled fabrics is usually handled `by laundering machines, to maintin a Washing capacity of from six to eight pound load, it is necessary to substantially increase the diameter of the rotor. Since the driers now on the market have a :capacity of between six and eight pounds of fabrics, it might be considered that the present machine is a drying machine which has had Washing features incorporated therein rather than a Washing machine converted to a drying machine. This largervolume rotor permits the squeeze mechanism of the present invention to be oifset upwardly so as to provide a large access opening for the insertion and removal of thelfabrics from the front face of the rotor and liquid container. In View of the fact that the squeeze mechanism is employed, there is no necessity for increasing the speed of the rotor since extraction takes place through this mechanism rather than through the peripheral wall of the rotor as has been the conventional practice when centrifugally extracting water from the fabrics.
In Fig. l a laundering machine of the present invention is illustrated, comprising a cabinet 10 having an access door 11, which is herein illustrated as of D-shape, mounted in the front face thereof. A water temperature control knob 12 and a cycle control knob 13 are mounted on the front face of the cabinet above the door and a removable top cover 14 is secured on an ornamental bead 15 about the top edge of the cabinet. Adjustable feet 16 are secured to the inner frame of the cabinet by which the machine may be leveled on a oor. In view of the fact that the rotor is run at a low constant speed, there is no undue vibration set up in the rotor and the cabinet and it need not be bolted to the floor or other supporting structure, as has `been the practice in4 centrifuging machines.
`Referring more specifically to Figs. 2, 3 and 4, the cabinet 10 is mounted upon a base 17, preferably of chau nel construction, having angle-shaped uprights 18 mounted thereon to which side flanges 19 on a container 21 are secured, herein illustrated as by bolts 22. The container has a front face 23, a peripheral wall 24, which may be separate elements or which may be provided in unit relation as herein illustrated. The rear edge of the peripheral wall 24 has an outwardly directed flange 25 to which a rear panel 26 is secured by a channel band 27 having a U-shaped sealing element 28 disposed therein. The adjacent edges 29 of the band are drawn together in some suitable manner, herein illustrated as by bolts 31.
The rear wall 26 has a bearing sleeve 32 secured thereto in which a sleeve bearing 33 is rotatably mounted. The sleeve bearing is secured to a spider 34, 'the ends of which are attached to a rotor 35. The opposite end of the sleeve 33 has a pulley 3:6 secured thereto by suitable mea'ns, herein illustrated as by a setscrew 317. A bearing sleeve 38k is positioned internally of the sleeve 33, having its inner end secured to a spider 39, the outer ends of which are attached to a plate 41 supported in aligned relation to the rear wall 42 of the rotor. The plate 41 is circular in shape, having its peripheral 'edge flanged rearwardly at 43 in spaced relation to 'a rearwardly extending cylindrical flange 44 on the rear `wall 42 of the rotor. A flange at the edge of the spider 34 is secured to the flange 4'4 and a ring 45 is secured thereover, for a purpose which will rbe explained hereinafter.
A spider 46 yhas its peripheral edge releasably secured to thev rear wall 26 by nuts 47 which' 'are threaded upon studs 48 which are welded or otherwise secured to the it and to a channel member 56 disposed therea'cross for supporting 'a motor 57 by bolts 58V which extend through slots-in the plate 55, permitting the motor to 'bef shifted for tightening lthe belts 59-a`n'd 61 which connect the pulley's 62' vand -63 on the Imotor shaft 64 tothe pulleysl 36 and 54 in the conventional manner. 65 may be secured to the plate 55, having a bearing in its upper `end for supporting the end 'ofthe shaft `64.
The `front wall 66 of the rotor-'35 has a-'central opening defined by an outwardly extending flange 67 -on the youter face of which 'a ring 68 is secured which is similar to the `ring '45 on the flange-of the rear wall-of the rotor. The rotor is disposed within the container or ltub 24-and is supported therein on pairs of wheels 69 and 71 on'the front and rear walls of the rotor, respectively. The wheels are Vmounted on shafts supportedonstampings I72, having a flange 73 which is welded ito the inner face of the front and rear Walls of the container or tub 24. The wheels support the `rotor which is driven bythe spider 34 through the sleeve 33 and the ypulley`36.
The plate 41 has a bearing 74 in which one `end of a shaft 75 is journaled for rotation by a pulley 76 which is secured to the shaft. The pulley is driven lby a belt 77 from the pulley 53, the belt havinga spring-pressed idler pulley 78 disposed in engagement therewithforttene sioning the belt and preventing the 'slippage thereof. The plate 41 is provided with a slot 79 in which a bearing block 81 is mounted for movement 'toward vand away from the shaft 75. Slot's82 are y'provided on each side face of the blocki'n which the 'wall portion at 'the "en'ds of the slot extends. The slot 79 is wider at the end adjacent tofthe shaft 75 to permitthe assembly of :theblock inthe slot. The block'at ythe rear side `of the 'platehas a stud 83 extending therefrom, the outer end of whicherttends through anaperture infabrac'ket 84`a`gainst which aspring 85 abuts when mounted about the stud 83 for urging the blck-towardtheshaft-7S. YA shaft 8'6 isfjournalediin'vthe block '81,Ltleshathaying iafroll'er Jr87"-se"c1'1red thereto An outboard bracket lil yin engagement with a roller 88 which is secured to the shaft 75. The rollers are preferably made of rubber, plastic or similar material which may have various degrees of hardness depending upon the amount of pressure to be applied to the fabrics passing therebetween.
A plate 91 fits into the top portion of the circular opening 92 in the front Wall of the container or tub 24 to which it is secured by suitable screws or bolts. The plate 91 has an arcuate flange 93 spaced from the flange 67 of the rotor,- with the face 94 of the plate disposed in alignment with the front face 66 of the rotor 33. A chordal flange 95 defines the upper limits of the access opening 92 to the interior of the rotor. A bearing 96 is disposed in the wall 94 for supporting the forward end of the shaft 75, and a bearing block 97 is provided in the slot in the wall to support the forward end of the shaft 86. This bearing block is mounted in a slot 79, the same as the block 81, and has a stud 83, bracket 84 and spring assembled therewith in the same manner as above described.
A washer 98, preferably of nylon or other bearing type of material, is provided at the ends of the rollers 87 and 88 to vsubstantially eliminate all of the friction between the ends of the rollers `and the walls 41 and 94 `while providing engagement therebetween for preventing the fabrics from being caught between the roller ends and the inner wall faces. In this arrangement, the roller 87 is spring pressed against 'the roller 88 at `both ends and may be moved yrelative thereto while providing a predetermined pressure to the vfabrics passing therebetween. The peripheral wall 101 i's perforated, being made lof material having a plurality of apertures provided therethrough or made 0f a screen material, as is the conventional practice in drying machines.
The front and rear walls 42 and 66 are spanned by laterally extending, inwardly projecting vanes 102 which engage yand pick up thel fabrics -at the bottom of the rotor and carry 'them up the left-hand side ofthe rotor as it is being driven in a clockwise direction. Near-the top of such .movement the fabrics tumble onto the top of the rollers 87 and '88 when saturated with cleaning liquid provided in the bottom portion yof `the container 24. Thus, during a washing or cleaning operation in the presence 'of fluid, the Ifabrics will pass betweenv the rollers and the liquid and dirt particles will be squeezed 'therefrom so 'that the fabrics will be cleaned in a Very short time due to vthesqueezing operation thereon. The liquid and 'particles squeezed from the fabrics will flow over the rollers fand 'also from the trough formed therebetween lthrough the 'apertures`79 back vinto the bottom vof the container 24.
The bottom of the container has a sump 103 connected by Iasolenoid-operateddrain valve'10`4 to a conduit 105 which isdire'ctly connected to a drain or a tank or "conne'cted thereto `through la pump, as is' the conventional practice. When the vdrainy valve is open 'during the operation of the rotor, fluid will pass yfrom the contaneri'24 and the saturated fabrics will continue to pass `between the rollers until a substantial amount of the lluid'hasbeen squeezed therefrom. Thereafter, the fabrics will be carried'beyond thepoin't'on the peripheral wall from'which they:drop, when saturated, to a'fhigher point and thereby will be dropped from the wall along a trajectory which carries the ffabrics beyond lthe roller 87 so that they will not pass betweenVl therollers during the drying operation. Thiscarfrying-overof Athe frabrics occurs fortwo 'reasons -first, because the fabrics are lighter when not saturated with-theiluii'and second, because Va -slight increase in the rotor speed occurs upon the removal ofthe fluid which caused a drag on the rotor when present during .the washing or cleansing operation. Thus, unnecessary wear on the"fabri`cs"isavoidedafter -the washing orl cleansing operationhas occurred. n
uiiiquj'e :system is provided for drying .thefabrcs wl'iicli 4is similar 'tdthatillustrated and described in""th"`e' depending application of William E. Stilwell, Jr., Serial No. 266,050, led January 1l, 1952, and assigned to the assignee of the present invention. This system operates on the principle of recirculating air near its saturation point and at a high temperature and maintaining the ternperature and water content at the high level throughout the drying time. It was found from experiment that the drying time is reduced more than one-half that required when ambient air is heated, passed through the rotor and discharged into the atmosphere, as has been the common practice in the art.
A blower 106 is mounted on the container 24 or elsewhere within the cabinet 10, driven by a motor 107` which is herein illustrated as directly attached to the blower. An intake conduit 108 extends to an intake housing 109 at the front face of the container, a major portion of the recirculated air being drawn therein from an aperture 111 in the front face of the container. The air is exhausted from the blower through a conduit 112 in which a heating unit 113 is mounted. This heating unit has a capacity of substantially 4500 watts when energized from a 230-volt circuit and has a rating of substantially 1500 watts when current is supplied from a 115- volt circuit. In either arrangement, an accumulator 114 may be provided about the heating element 113 for storing heat during the time of the washing or cleansing operation to be available after the lluid has been drained from the container for heating the saturated fabrics to a high degree of temperature which aids in the extraction of the fluid therefrom and the rapid drying thereof. The heated air is delivered to the container 24 through an aperture 115 in the rear wall 26 thereof.
An air duct 116 is connected to the right-hand wall of the sump 103, as illustrated in Fig. 4, which passes along the peripheral wall and forwardly, as illustrated in Fig. 3, to connect into the housing 109 through the opening 117 in the rear face thereof. Between 20% and 30% of the air passing through the blower 106 is drawn through the duct 116 and mixed with the air drawn from the aperture 111, in the front face of the container 24. The air drawn through the duct 116 passes through a water spray 118 provided by a spray tube 119 located in a recess in the outer wall of the duct, as illustrated in Fig. 4. The water spray 118 condenses a portion of the water in the moisture-laden air and the amount thus removed substantially equals the amount being picked up by the air, so that the combined air, after being heated, has a substantial ainity for the moisture within the fabrics and rotor which is readily picked up thereby. In this manner, the circulated air is maintained at a high temperature with a high moisture content which maintains the fabrics and the interior of the rotor at a high temperature which, as found from experiment, substantially reduces the drying time. The present laundering machine, therefore, is capable of washing and completely drying a load of fabrics in substantially the same time that laundering machines known in the art wash and extract water from the fabrics, with the laundered fabrics retaining substantially 100% water by weight.
It is to be understood that a temperature control water intake valve 121 and suitable circuits are provided for timing the admission of water, operating the control valve and the blower and starting and stopping the motor 57 in the conventional manner, so that the complete operating cycle of washing, rinsing, extracting and completely drying the fabrics may occur during a single cycle of operation of the machine.
Referring to Fig. 5, another form of the device is illustrated, that wherein the roller 88 is mounted on the axis of the rotor 122 to simplify the construction while providing a suicient access opening about the roller 88. In this arrangement, the forward plate 123 is constructed as a quadrant to increase the area of the access opening from the bottom upwardly at each side of the roller 88. The roller 87 is mounted in a similar manner as herein- 6 above noted, the rear end of the shaft 86 being journaled in a slidable block 81 in a slot 79 in a plate 140. The plate is recessed in the rear wall 142 of the rotor and is secured to a sleeve 143. The sleeve 143 is releasably secured to a bushing 144 on a spider 145 the arms of which are secured to the container by volts, as in the construction illustrated in Figs. 1 to 4 above described. The stud 83, bushing 84 and spring 85 are provided for the blocks 81 at the front and rear ends of the shaft 86 on the outside of the plates 123 and 140, as in the construction described above. The only difference between the embodiment illustrated in Fig. 5 and that in Figs. 1 to 4 is the disposition of the roller 88 directly on the axis of the rotor, with the rotor supported on the bearing on the rear wall of the container rather than on the wheels 69 and 71. It is to be understood that in either construction the rollers may be mounted in offcenter relation to the rotor axis or that one of the roller shafts may be mounted in alignment therewith. The tubular extension on the rear wall 124 of the container 120 has bearings 125 which engage a sleeve 126 extending rearwardly from the rotor 122. The sleeve 126 rotates on the sleeve 143 and a shaft 127 is journaled within the sleeve 143, having a spline 128 engaging spline ways within a sleeve 129 to which the roller 88 is secured. The end of the shaft is journaled in a bearing 130 secured to the plate 123 and a screw 131 in the end of the shaft 127 prevents the shaft from moving rearwardly in the sleeve 129. A pulley 132 is connected to the sleeve 126 and a pulley 133 is connected to the end of the shaft 127. The pulleys are driven from belts 134 and 135 from pulleys 136 and 137, respectively. The pulleys are mounted on a shaft 138 of a motor 139 which is suitably supported on a plate 141 on the base frame 17 of the cabinet. An outboard support 149 may be provided on the end of the shaft 138, the support being attached to the base frame. It will be noted in either type of machine that the roller 88 is driven at a faster angular speed than the rotor so that the peripheral speed of the roller 88 is at least equal to that of the rotor, to make sure that the fabrics will not pile up on the rollers as they are delivered thereto.
Referring again to Figs. 2, 3 and 4, it will be noted that a wiper blade 147 is provided in engagement with the surface of the roller 88 across the entire length thereof and that a similar wiper blade 148 is` provided in engagement with the roller 87. The ends of the blades may be supported on the plates 41 and 91 of the structure illustrated in Figs. l to 4`and on the Walls 123 and of the structure illustrated in Figs. 5 and 6. The blades may be supported on ngers 146 extending from the friction washers 98 at the ends of the roller when the washers are secured against rotation to the plates. ln either case, the blades are mounted in a position to engage and wipe the uid from the rollers and also to prevent any of the fabrics from adhering to the rollers and being carried around thereon as sometimes occurs during wringer roll operations. It is to be understood that an air circulating system, water inlet and drain. valves, shaft sealing washers, and other features of the machine illustrated in Figs. 1 to 4 may be employed on. the machine illustrated in Figs. 5 and 6.
With either type of machine, a very rapid washing or cleansing operation is performed due to the rapid washing action which occurs when employing rollers or similar types of squeeze mechanisms within the rotor. A rapid drying of the fabrics occurs after the washing operation due to the circulation of air at high temperature and moisture content so that the complete time cycle of the machine is extremely short for completely laundering the fabrics. It is to be understood that the machine may be employed for dry cleaning as well as washing, Idepending upon the type of fluid provided within the container 24 or 120 and that it may be constructed asa commercial aswell as a domestic type of machine.
7 Due to the fact that the rotor is driven at a constant speed, no vibration is set up in the cabinet and the machine n'eed not be secured to the door or other support, as has been the practice in laundering machines heretofore provided in the trade.
What is claimed is:
l.. A laundering machine having, in combination, a rtatable rotor having a fixed plate at one end, a liquid container encompassing said rotor, a pair of squeeze rollers within said rotor having one end supported on the plate and the other end on the container, means for driving said rotor and rollers, means on the rotor wall for raising the fabrics therewithin, and drain means on said container, the position of said rollers and the speed of the rotor being such that the latter is in the path of the fabrics when dropped from the wall in the presence of uid within the container and being out of the path of the fabrics when dropped from the wall when the iluid has been removed from the container.
2. A laundering machine including, in combination, a support, a rotor having a fixed end plate rotatably mounted on said support, a container encompassing said rotor, means for rotatably driving said rotor at a substantially constant speed, means within said rotor for carrying the fabrics from a point adjacent the bottom thereof to a point adjacent the top thereof, fabric squeezing means within said rotor having its opposite ends supported on said end plate and on said container respectively and located in a position to receive the fabrics dropping from the rotor when the fabrics are saturated with cleansing liquid and which pass therebeyond when not so saturated.
3. A laundering machine including, in combination, a liquid container, a rotor having a xed end plate rotatably supported within said container, said container having a perforated peripheral wall adapted to be partially immersed in a liquid within the container, means for driving said rotor at a constant speed, means on the inner portion of the container for carrying the fabrics upwardly near the top of the rotor from which they drop at a point depending upon the liquid content thereof, a pair of wringer rolls rotatably supported within said rotor with opposite ends supported on said plate and container respectively located in a position to receive the fabrics dropping from the peripheral wall when the fabrics are saturated with liquid and beyond which the fabrics drop after the liquid has been squeezed there- A from, and means rotatably driving at least one of said rolls at a constant speed in angular rotation substantially in excess of the speed in angular rotation of the rotor.
4. A laundering machine including, in combination, a liquid container, a rotor having a xed end plate rotatably supported Within said container, said container having a perforated peripheral wall adapted to be partially immersed in a liquid within the container, means for driving said rotor at a constant speed, means on the inner portion of the container for carrying the fabrics upwardly near the top of the rotor from which they drop at a point depending upon the liquid content thereof, a pair of wringer rolls rotatably supported within said rotor with opposite ends supported on said plate and container respectively located in a position to receive the fabrics dropping from the peripheral wall when the fabrics are saturated with liquid and beyond which the fabrics drop after the liquid has been squeezed therefrom, and means rotatably driving at least one of said rolls at a peripheral speed which is substantially equal to that of the peripheral speed of the rotor.
5. A laundering machine including, in combination, a liquid container having a front an-d rear wall joined by a peripheral wall, with the front wall containing an opening, a. pair of rollers on the front and rear walls, a rotor having a peripheral wall joined by front and rear walls containing openings about which rings are provided resting upon said rollers, a plate extending into the opening in the rear wall of the rotor and mounted in fixed relation relative to the container, means for driving said rotor on said rollers, a pair of wringer rolls supported for rotation on-said plate and on the front wall of said container, and means for driving said rollers.
6. A laundering machine including, in combination, a liquid container having a front and rear wall joined by a peripheral wall, with the front wall containing an opening, a pair of rollers on the front and rear walls, a rotor having a peripheral wall joined by front and rear walls containing openings about which rings are provided resting upon said rollers, a plate extending into the opening in the rear wall of the rotor and mounted in xed relation relative to the container, means for driving said rotor on said rollers, a pair of wringer rolls supported for rotation on said plate and on the front Wall of said container, and means for driving said rollers, said rollers being supported in off-center relation to the center of said plate and rotor in position to receive fabrics saturated wtih liquid when tumbled from the peripheral wall of the rotor as the rotor is driven.
7. A laundering machine including, in combination, a liquid container haivng a front and rear wall joined by a peripheral wall, with the front wall containing an opening, a pair of rollers on the front and rear walls, a rotor having a peripheral wall joined by front and.` rear ywalls containing openings about which rings are providednresting upon said rollers, a plate extending into the opening in the rear wall of the rotor and mounted in fixed.y ri-llation relative to the container, means for driving said rotor on said rollers, a pair of wringer rolls supported for rotation on said plate and. on the front wall of said container, means for driving said rollers, said rollers being supported in off-center relation to the centerio'f said plate and rotor in position to receive fabrics saturated with liquid when tumbled from the peripheral Wall of the rotor as the rotor is driven, and wiper blades mounted within the rotor in engagement with said rollers.
8. A laundering machine including, in combination, ay
liquid container, a rotor rotatably supported within said container and encompassed thereby, said rotor having a perforated peripheral wall, means for mounting a pair of rollers within said rotor with the axis of one of said rollers disposed on the axis of the rotor, and meansl for driving said rotor and rollers simultaneously.
9. A laundering machine including, in combination, a liquid container, a rotor rotatably supported within said container and encompassed thereby, said rotor having a perforated peripheral wall, means for mounting a pair of rollers within said rotor with the axis of one of said rollers disposed on the axis of the rotor, means for driving said rotor and rollers simultaneously, and a plate mounted on the front of the container for supporting the front end of the rollers thereby providing a large access opening at the bottom and sides of the roller for the removal and insertion of the fabrics.
10. A laundering machine including, in combination, a rotatable rotor provided, with meansgtherein lfor raising the fabrics and tumblingthern therewithin,fadiquidcontainer encompassing said rotor, apair effi-squeeze'rollers-` within said rotor mounted on shafts lconfined-withinsaidy container, means for driving one of said rollers, means for biasing said other roller toward said driven roller mounted on the exterior of the rotor, and means for driving said rotor and rollers.
References Cited in the file of this UNITED STATES PATENTS 1,195,873 Thurlow Aug. 22, 1916 2,417,998 Wales Mar. 25, 19.47
2,434,476 Wales Ian. 13, 1948 FOREIGN PATENTS 196,485 Great Britain Apr. 26, 1923
US317655A 1952-10-30 1952-10-30 Laundering device Expired - Lifetime US2757530A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040000174A1 (en) * 2000-12-27 2004-01-01 Edwin Bolduan Washing machine with dryer
US20040112095A1 (en) * 2000-12-27 2004-06-17 Edwin Bolduan Washing machine with a pressing and/or ironing function and method for cleaning laundry

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1195873A (en) * 1916-08-22 Washing-machine
GB196485A (en) * 1922-05-04 1923-04-26 Joseph Cartwright Improvements in machines for washing and wringing clothes and other materials
US2417998A (en) * 1944-12-28 1947-03-25 Ind Patent Corp Automatic hydraulic clothes washing machine
US2434476A (en) * 1946-04-19 1948-01-13 Ind Patent Corp Combined dryer and automatic washer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1195873A (en) * 1916-08-22 Washing-machine
GB196485A (en) * 1922-05-04 1923-04-26 Joseph Cartwright Improvements in machines for washing and wringing clothes and other materials
US2417998A (en) * 1944-12-28 1947-03-25 Ind Patent Corp Automatic hydraulic clothes washing machine
US2434476A (en) * 1946-04-19 1948-01-13 Ind Patent Corp Combined dryer and automatic washer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040000174A1 (en) * 2000-12-27 2004-01-01 Edwin Bolduan Washing machine with dryer
US20040112095A1 (en) * 2000-12-27 2004-06-17 Edwin Bolduan Washing machine with a pressing and/or ironing function and method for cleaning laundry
US7305856B2 (en) * 2000-12-27 2007-12-11 Bsh Bosch Und Siemens Hausgeraete Gmbh Washing machine with dryer

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