US3102407A - Fabric laundering machine - Google Patents

Fabric laundering machine Download PDF

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Publication number
US3102407A
US3102407A US472917A US47291754A US3102407A US 3102407 A US3102407 A US 3102407A US 472917 A US472917 A US 472917A US 47291754 A US47291754 A US 47291754A US 3102407 A US3102407 A US 3102407A
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tub
fabrics
receptacle
water
cycle
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US472917A
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Jr William E Stilwell
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Hupp Corp
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Hupp Corp
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F25/00—Washing 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 having further drying means, e.g. using hot air 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/22—Mountings, 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/026—Devices for adding soap or other washing agents the powder or tablets being added directly, e.g. without the need of a flushing liquid

Definitions

  • This invention relates to laundering machines, and particularly to a laundering machine which performs a washing and a complete drying cycle.
  • the continued development of components has added various features -and introduced different structures which ⁇ have advanced ⁇ the machine to Va commercial stage.
  • the construction permits the use of a cabinet cabinet encloses" a complete laundry capable of washing, rinsing, wet-drying and completely drying the fabrics and optionally contains an ironer by which the dried fabrics may be ironed.
  • the rear half of the receptacle is .employed ⁇ for the washing operation providing the desired volumetric capacity for the contained fabrics.
  • a ;substantial saving in water occurs While obtaining the desired depth of water in the rear half of the receptacle for the Washing operation.
  • the effect of the jet spray isf substantially improved since the water is sprayed into the tub in a parabolic path and willomore nearly approach the fabric in a path normal thereto.V ⁇ Fourth, thedistribution of the fabrics when changing into the spin ⁇ operation ⁇ is substantially improved because of the thicker annulus thereof when confined to the ⁇ rear half 4of the receptacle.
  • the overhang weight on tihe receptacle bearing is substantially reduced since the fabrics are closer to 'the bearing and heaviestfwhen ⁇ saturated with water.
  • the vibration ⁇ isolation system is substantially improved by the improved static and dynamic balance, the former due to the better distribution of lthe fabrics and the later because of the center of mass of the distributed fabrics being disposed substantially on thelcenter of mass of the suspended tub and receptacle.
  • the washability ⁇ is substantially improved because of the increase in the interfacial scrubbing action within the fabrics themselves and the scrubbing action occurring on the back face of the receptacle.
  • centrifuging is better because the radial thickness of the fabric annulusis greater when concentrated in the back half of the receptacle.
  • v ther important advantage is the room provided i. at the The drying of the fabrics is sub- ⁇ stantially improved because (a) as they get drier they o expand into the full volume of the receptacle, and (b) the coolingwater and condensate flow on theinner tubVV 31,102,407 h Patented Sept. 3, ⁇ v1963 fabrics become dry, they expand and move tol extend within the forward part ⁇ of the receptacle and at the time the fabrics are dry they will be striking on the door area of the machine. -By employing a servo mechanism t adjacent the door area, this striking of the fabrics against the mechanism will causethe mechanism to operateand thereby terminate the ⁇ operation ofthe machine atV tlhe time the fabrics are dry.
  • thermal accumulating device t When the machine is operated on a 115 volt line, thermal accumulating device tis employed embodying both a storage means and a heating means, either ofthe the entire cycle of washing and drying the fabricsuexcept for the period whent he ⁇ driving motor isr excessively Vloaded requiring additional wattage ⁇ above ⁇ the normal running wattage, during which time the electric heating means is de-energized for the short demand period.
  • a closed air recirculatory system is employed lfor/dryingthe fabrics in the drying cycle.
  • a damper is provided in the Iair recirculatory system which 'is open during the inal centrifugingperiod forl initially heating the fabrics, receptacle and tub prior to therdrying opera'- tion.4 Heating at this period is important. since the in ⁇ - creased heat on the fabrics decreases the ⁇ kinematic viscosity of the water contained therein which accounts for the ⁇ additional water mechanically removed. from the fabrics toward the ⁇ end ofthe centrifuging period. It also raises the saturation to approximately 100% ⁇ and increases static pressure in the systemwhich breaks down the pneumatic ⁇ sticking of the fabrics to the wall. vAs a result, the drying cycle is started with ⁇ the recircu'- latoryairat a high temperature and' moisture level. ⁇
  • thefblower for circulating the air in the 4closed recirculatory system is then operated ⁇ and a ow of water is provided for the condenser.
  • the condenser is so located that only a portion of the recirculatory air is ⁇ contacted thereby for the purpose of drying the fabricsat a high tempenature and a high moisture o ⁇ from the blower and heater will be retained at a high content level.
  • the fabricsbecome drier since the input heat to the heat storage element will not equal thelheat being delivered4 ⁇ therefrom to the air, and Aat the end of the' drying'cycle" the fabrics may be removed without any cooling time added Ito the cycle.
  • the 230 volt arrangement is employed-and a part of the heating element .is cut out of circuit, the delivered heat is reduced before the fabrics become dry near the end ⁇ of the drying cycle; still the i temperature of the lfabrics will he at suc-h a high demee The device is heated through l of the machine.
  • v. pointV thermo cutoff point
  • This temperature ter# mination may be included in the timer which is employed for controlling theV cycles of washing and drying the fabrics.
  • the timer When in .the drying cycle, the timer may be v cut olf at .a fifteen Ior twenty minute point of operation ⁇ VVVfor'ironer ydry condition yof the fabrics to be picked up by the thermostat control mechanism for the air tempera-V v springs disposed in tension for supporting ⁇ a pair of cross ymembers atthe bottom of the tub.
  • the cross members have spring-pressed pads which engage smooth plates or surfaces Vat .the front and rear of the machine.
  • This sim ple suspension mechanism at the lower half of the tub permits the tub tov vibrate relative to the cabinet Without vibrating the cabinet any noticeable amount.
  • a weight is priovidedon the cabinet in the nature' of an ironer which v is located therewithin enclosed by a door so that the cab'- inet actually houses a complete laundering machine, in-
  • va soak cycle may be employed initially prior Ito the wash cycle of operation and additional water is introducedubetween the soak and washing cycles, a novel soap dispensing device is employed having '.aclosureelement upon which the soap is initially placed prior to the beginning of the operation.
  • vA blower isrnounted upon a conduit formed on the p upper right-hand side of the tub in which a condenser is v through the changingof the location of the-facesto bein ping and tumbling during the drying cycle.
  • This is usual-V ly caused, when one of these three things occur: the wedging due to the configuration ofthe tub and baffle; Vthe pneu- ⁇ matic'holding ofthe fabrics against the smooth peripheral cellulose contents of the ⁇ detergents which might be ernployed. This latter is an ⁇ antigraying agent employed to' prevent redeposition of the dirt on the fabrics.
  • the extracted water washes the lint from the screen Iwhich was impinged thereon during the prior drying cycle and ⁇ ⁇ conducts it to the drain.
  • the extracted water washes the soap into the water and ⁇ cleans the closure element and mouth of the bellows onto which the soap was stored during the soaking cycle.
  • the extracted water washes the soap into the water and ⁇ cleans the closure element and mouth of the bellows onto which the soap was stored during the soaking cycle.
  • twenty-five pounds of water lare retained within a sixpound ⁇ load of fabrics, eleven or twelve pounds of the water ⁇ are extracted lay the two initial acceleration spins.
  • any number of the initial spins may fbe applied within the cycle Ibut two of such spins reduce the weight of the ⁇ water ⁇ within the fabrics to approximately one-'half-
  • the final 1centrifuging spin at high speed removes yall but approximately three to five pounds of water in the six-.pound load, Especially is this true when hea-t is initially introduced to the tub 'after the first acceleration spin.
  • l-t is to fbe understood that a centrifugal ⁇ device may be employed to cut olf .the motor after the receptacle has ⁇ heen energized to accelerate to some specific predetermined speed rather than ldepending upon ⁇ a time interval, as the speed attained when relying on time will depend upon the contained load.
  • the main objects of the invention are: to provide Ia laundering machine which produces la complete cycle of washing and ⁇ completely drying fabrics eliiciently in ⁇ a minimum amount of ti-me; to provide a laundering machine with a tub ⁇ and receptacle which 'are tilted at the top rearwardly to have lonly the rear half of the volume of the receptacle utilized during the washing ycycle and the entire volume of the receptacle available during the drying cycle; to provide a machine which washes, rinses, wet-dries and :completely dries fabrics which applies heat thereto during :the nal rinse and after the rst acceleration spinto decrease the kinematic VViscosity of the water in the fabrics in the closed air recirculatory system so as to dry at a high temperature and moisture content level, and, in general, to provide 1a laundering machine which is simple in construction and economical of operation lboth i-n the use of water for washing, rinsing
  • FIGURE 1 is a perspective view of 'a laundering machine embodying rfeatures of the present invention
  • *IG 2 is an enlarged, broken sectional View of the machine illustrated in FIG. l, taken on the line V2 2. thereof;
  • FIG. ⁇ 3 is an enlarged, sectional view of the structure illustrated in FIG. 2, taken on the line 3 3 thereof;
  • FIG. 4 is a broken, sectional view of the structure illustrated in FIG. 3, taken on the line ⁇ 4 4 thereof;
  • FIG. 5 is an enlarged, sectional view of the structure illustrated in FIG. 4, taken on the yline 5 5 thereof;
  • FIG. 6 is a broken, sectional View of the structure illustrated in FIG. 2, taken ⁇ on'th'e line 6 6 thereof;
  • FIG. 7 is an elarged, sectional View of the structure illustrated in FIG. 6, taken on the line 7 7 thereof;
  • FIG. 8 is la broken view of the structure illustrated in FIG. 7, showing additional structure applied thereto;
  • FIG. 9 is a sectional View of the structure illustrated in FIG. 8, taken on the line 9 9 thereof;
  • FIG. l0 is an enlarged, sectional view of the structure illustrated in FIG. 6', taken on the line -10-10 thereof;
  • FIG. 11 is a sectional view of the structure illustrated FIG. 1G, taken on the 'line 11 11 thereof;
  • FIG. 12 is ya sectional view of the structure illustrated in FIG. l0, taken ⁇ on the line 12-12 thereof;
  • FIG. 13 is a lbroken view of the structure illustrated in FIG. 10, showing a mechanism added thereto;
  • FIG. 14 is 4a plan view of structure ywhich is similar to that illustrated in FIG. 2, showing a modified form of supporting mechanism;
  • FIG. 15 is an enlarged, sectional view of the structure illustrated in FIG. i4, taken on the line 15 15 thereof;
  • FIG. ⁇ 16 is an enlarged, -brolcen sectional view of the structure illustrated in FIG. 14, ⁇ taken on the l-ine ⁇ 16-16 thereof;
  • FIG. l7 is Van enlarged, broken sectional view of the structure illustrated in FIG. 4, taken on the line 17 17 thereof;
  • FIG. 18 is a sectional View of the :structure illustrated in FIG. 17, taken on the line ⁇ 18 IS thereof; l
  • FIG. 19 is a viewof a chart illustrating the method of removing moisture from the circulated air
  • FIG. 2O is ⁇ an enlarged, broken sectional View of the structure illust-rated in FIG. 2, taken :on the line 26)'--20 ⁇ thereof;
  • FIG. 21 is a sectional view of the structure illustrated in FIG. 4, taken on the line 21-21 thereof;
  • FIG. 22 is anend View of the ⁇ structure illustrated in FIG. 21, as viewed from line 2.2 22 thereof;
  • FIG. 23 is a sectional View ⁇ of the structure illustrated in FIG. 21, taken on the line 2.3 23 thereof;
  • FIG. 24 is a broken sectional View ⁇ of the structure illustrated in FIG. 23, taken on ⁇ the line 24-24 thereof;
  • FIG. 25 is :a diagrammatic View :of the tub 4and receptacle illustrating a washing cycle of operation
  • FIG. 26 is a view of the structure illustrated in FIG. 25, showinga drying cycle of operation
  • FIG. 27 Iis a front view in elevation of the tub showing the path of circulated lair which occurs during the drying cycle;
  • FIG. 28 is an enlarged, broken sectional View of the structure illustrated in FIG.- 27, taken on the line 28-255 ⁇ thereof;
  • FIG. 29 is a drying cycle chart comparing the drying time for the ⁇ different arrangements of the machine.
  • FIG. 30 is a View -in elevation of a control panel yfor regulating the cycle of operation of the machine
  • FIG. 31 is a view of structure, similar to that illustrated in FIG. 3l), showing another form thereof;
  • FIG. 32 is a View of structure, similar to that illustrated in FIG. 30, Vshowing a ⁇ further form thereof;
  • FIG. 33 is a View of structure, similar to that illustrated in FIG. 30, showing 'a still ⁇ further form thereof;
  • FIG. 34 is a plan view of structure which is adjusted by the setting of-the :dials on the panels lof FIGS. 30 to v 33A inclusive;
  • FIG. 35 is la View lof a contact element for terminating the drying cycle
  • FIG. 36 is a sectional View of the structure illustrated' ⁇ in FIG. 35, ⁇ taken on the line 36-36 thereof;
  • FIG. 41 is a front perspective View of the belt drives Aillustrated in FiG.
  • FIG. 42 is aperspective view of the motor, pulleys and clutches illustrated in FIG. 4l;
  • FIG. 43 Vis Ia perspective view of the pump and the clutch drive therefor illustrated in FlG. 4l;
  • FIG; 44 is a view of a pulley illustrated in FIG. 40, with a pulley connected thereto iu cverrunning relation therewith; y
  • FIG. 45 is a sectional view tof ⁇ a thermal storage element similar to that illustrated in FIG. 4;
  • FIG. 46 is an enlarged, sectional view of the structure illustrated in FIG. 45, taken on the line 1o-'46 thereof;
  • FIG. 47 isqa sectional View of structure, similar to that illustrated in FIG. 45, ⁇ operating by a gas heating device;
  • FIG. 48 is an enlarged, sectional view Vof the structure illustrated in FIG. 47, taken ⁇ on the line-4d 43 thereof;
  • PlG.,49 is yan enlarged, sectional View of the structure illustrated in FlG. 47, taken on the line #19*49 thereof;
  • FIG. 50 is an Voperation chart showing the sequence of operation in the machine
  • FIG. 5l is a wiring diagram lof the machine when employing the thermal storage means illustrate-d in FG. 5,
  • FIG. 52 is awirin'g diagram, similar to that illustrated in lG. 51, employed with the thermal storage element illustrated in FIG. 45.v
  • the laundering machine of the present invention embodies a cabinet 411 having a front panel 41 ⁇ containing a Idoor i4l; in the center and a door 43 at the upper lefthand corner.
  • a door 44 is illustrated at the upper righthand corner which permits access to the'overload protec- ,tive devices when employed in the system.
  • the springs have hooks 58 on the lower ends which extendwithin apertures in lbrackets dsecured Ito forward and rearwardly extending tubular elements 61.
  • tubular elements are attached to the bottom of a tub d2 by stampings 63 land 64, the stamping o4 being scoured directly to the tub while the stamping 63 is secured to a sump 65 fat the bottom left-hand side of the machine.
  • the entire tub is ⁇ supported upon the two spaced tubular elements 61 which extend from the front to the rear of the cabinet.
  • each end of the tubular. ele- ⁇ ments 61 is enlarged at 66 for the reception of a sleeve o7 which is secured therein.
  • Bach end of the central aperture 68 of the sleeve 67 has ia bearing 69 therein .which supponts a shaft 71.V
  • a flanged disk '72 is mounted on the protruding end of the shaft 71 and a friction washer 73 is mounted on the forward face thereof encompassed by the ilanged edge.
  • the structural elements 51 and 52 of the Vcabinet have laterally rex-tending channel plates 74 mounted ⁇ thereiacross as part of the frame, on which polished plates 7S, made of stainless steel or the like, are
  • a recess 7 6 is provided on the forward end of the sleeve 67 forming a shoulder 77 ⁇ against which a coil spring 73 abuts when the forward end engages the rear side of the flanged washer 72.
  • the tub 6E contains a rotor '79 having a shaft 80 thereyon which is mounted in a bearing supported by spiders 82 on the rear wall 83 of the tub in a mannery as illustrated in the above mentioned applications.
  • the shaft S0 supports a pulley S4 which is driven by a belt 85 from a pulley E16 on la shaft of a tnansmission 87 which is mounted ydirectly upon a motor 88.
  • the ltub ⁇ has va ange against which Vthe peripheral edge of the rear walll83 abuts and is secured in sealed position by the U-shaped band 89 having a sealing gasket therein, tall as described in the above-rnentioned copending applications.
  • the peripheral wal1-91 of the tub has Ya conduit 92 in unit relation therewith extending over ⁇ an opening *93 therein which is yenclosed by a lint screen 94.
  • the conduit 192 is of narrow width relative to the depth of the tub.
  • the top of the conduit supports la blower 95 which is preferably of the centrifugal type having an inlet on the bottom in communication with the top ofthe conduit and h-aving a cylindrical-shaped youtlet
  • a thermal accumulating device or exchanger 97 is mounted :on the front face 98 of the tub above the door opening 99 thereof.
  • the accumulator as ⁇ illustrated in FIG.
  • An elbow 1111 has a cylindrical end joined to the blower outlet 9d and a rectangular end joined to the conduit 1114. rihe adjacent ends of the plates 1111 have tapered extensions 111 from which a Vc urved vane 112 extendsy into the elbow 1118 to produce an equal division of the air past the ins 1192 of the plates.
  • the opposite end of the conduit 164 is extended downwardly at ⁇ 113 tto be joined to a rectangular elbow'114 which is supported by the sheath 166 through welded flanges 115 thereon.
  • the rear side of the elbow 114 has an opening aligned with an opening 116 located adjacent to the central opening 99 of 'the tub for the admission of air into the tub andv receptacle.
  • the cylindrical portion of the elbow 103 has a damper 11.7 pivoted therein on a shaft 118 on which a pinion 119 is secured.
  • the teeth of the pinion are engaged by the teeth of a rack 121 which is'. longitudinally movable to forward and retracted positions by a spring biased solenoid 122, the gear, rack ⁇ and pinion being disposed on the outside'of the elbow. .Y l Y
  • a pulley 123 is connected to a shaft '124 of the blower 95 through a clutch ⁇ 1125V which is operated by a solenoid 125 to engaged and disengaged positions.
  • a pump l127 of the positive displacement type is mounted on the tub between the motor and the blower.
  • a pulley 1215 and a pulley 129 are mounted upon the shaft of the pump, each having ⁇ a clutch of the overrunning type which is effective in opposite directions of rotation of the motor for engag- Iing .the shaft and driving the pump in a single direction.
  • the forward end of the shaft S1 of the motor S3 has a pair of pulleys 131 and132 thereon.
  • a belt 1133 connects the pulley 132 to the pulley 129, while a beltlfl con-

Description

Sept. 3, 1963 w. E. sTn wEL.| JR 3,102,407
FABRIC LAUNDERING MACHINE Filed Dec. s, 1954 1e Sheets-sheet 1 sept. 3, 1963 W. E. STILWEALL, JR
FABRIC LAUNDERING MACHINE Filed Dec. 3, 1954 16 Sheets-Sheet 2 MW -l #L 4 l /l M. @y o l 44 1| ,M M f f ,4f/w f ,i y /ZJ Y M 5 Eg Sept. 3, 1963 w. E. sTILwELL, JR 3,102,407
FABRIC LAUNDERING MACHINE Filed Deo. 5, 1954 IN VEN TOR. Mila/f Y yimg/Zn Tray/v50@ Sept. 3, 1963 Filed Deo. 5, 1954 /ff J1 @f5/jajajja 16 Sheets-Sheet 4 y INVENTOR; M//zdm I Sfzwe/Jzy Sept, 3, 1963 w. E. sTlLwELl., JR 3,102,407
l FABRIC LAUNDERING MACHINE Fild Deo. s, 1954 1e sheets-sheet 5 IN VEN TOR.
Sept. 3, 1963 w. E. STILWELL, JR 3,102,407
FABRIC LAUNDERING MACHINE A Filed Dec. 5, 1954 16 Sheets-Sheet 6 c A fr' E J7 ,o /f y i4 BY /MM #/Zwg ffaX/VIYS.
Sept. 3 1963 w. E. sTlLwELL., JR 3,102,407
FABRIC LAUNDERING MACHINE Filed Dec. 5, 1954 16 Sheets-Sheet '7 Sept. 3, 1963 w. E. s'nLwELL, JR 3,102,407
A l FABRICA, LAUNDERING MACHINE Filed Dec. 5, 1954 16 Sheets-Sheet 8 a 2 4 i? /o /z /4 /92022/424133032343433404i44 46 INVENTOR.
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Sept. 35 1963 w. E. sTlLwELL, .JR 3,102,407
FABRIC LAUNDERING .MACHINE Filed Dec. 3, 1954 16 Sheets-Sheet 9 INV EN TOR. 4Q/nf S/51% u S MW m N Sept. 3, 1963 w. E. sTlLwELL, JR 3,102,407
FABRIC LAUNDERING MACHINE Filed Dec. s. 1954 1e sheets-sheet 1o j?! U/ @MSE SPIN o M Sept. 3, 1963 w. E. STILWELL, JR
FABRIC LAUNDERING MACHINE Filed Dec. 3, 1954 16 Sheets-Sheet 11 54'/ if 3 345 y! INVENTOR. f w/Zwf/ Isfzfweizxf Sept 3 1963 w. E. sTlLwELL, JR 3,102,407
FABRIC LAUNDERING MACHINE Filed Dec. s, 1954 1e sheets-sheet 12 Y 383 Y 377 j [Z7 337 373' 3% A?! 57a 388 A j;
' 380 i 385 a if zz Sept. 3, 1963 l w. E. sTlLwELL, JR 3,102,407
` 7 FABRIC LAUNDERING MACHINE Filed'nec. s, 1954 1e sheets-sheet 1:5
` INVENTOR. 16X/M777 I sfila/e721 77? afm/lys,
Sept. 3, 1963 w. E. s'rlLwELL, JR 3,102,407
FABRIC LAUNDERING MACHINE Filed Dec. 3, ,1954 16 Sheets-Sheet 14:
, JNVENTOR. M7547 IsffzweZ/ BY j .D UHI Sept- 3; 1963 w. E. s'nLwELL'., JR 3,102,407 y Y FABRIC LAUNDERING MACHINE Filed Deo. 3, 1954 16 Sheets-Sheet 15 I N VEN TOR.
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FABRIC LAUNDERING MACHINE Filed Dec. s, 1954 16 Sheets-Sheet 16 NNW.
UnitedStates Patent() t `3,102,407 FABRIC LAUNDERlNG MACHINE o William E. Sitilwell,` Jr., Glendale, Ohio, assignoiggby mesne assignments, to Hupp Corporation, Cleveland, Ohio, 4a` corporation of Virginia Filed Dec. 3, 1954, Ser. No. 472,917
6 Claims.` (Cl. 68-17) i This invention relates to laundering machines, and particularly to a laundering machine which performs a washing and a complete drying cycle. The continued development of components has added various features -and introduced different structures which `have advanced `the machine to Va commercial stage. The construction permits the use of a cabinet cabinet encloses" a complete laundry capable of washing, rinsing, wet-drying and completely drying the fabrics and optionally contains an ironer by which the dried fabrics may be ironed. I h l "Ilhe receptacle for the fabrics is mounted coaxially within a tub, the axis `of which istilted upwardly at the front at an angle of approximately Since the machinecompletely dries the fabrics and since the` volumetric capacity of the receptacle for drying must be approximately twice of that for washing, the mounting of the tub and receptacle iat an angle is important. Thereare eight reasonswhy the tiltingof the tub rearwardly substan-` First,"
tially improves the operation of the machine. the rear half of the receptacle is .employed `for the washing operation providing the desired volumetric capacity for the contained fabrics. Second, a ;substantial saving in water occurs While obtaining the desired depth of water in the rear half of the receptacle for the Washing operation. Third, the effect of the jet spray isf substantially improved since the water is sprayed into the tub in a parabolic path and willomore nearly approach the fabric in a path normal thereto.V `Fourth, thedistribution of the fabrics when changing into the spin `operation `is substantially improved because of the thicker annulus thereof when confined to the `rear half 4of the receptacle. Fifth, the overhang weight on tihe receptacle bearing is substantially reduced since the fabrics are closer to 'the bearing and heaviestfwhen `saturated with water. Sixth, the vibration `isolation system is substantially improved by the improved static and dynamic balance, the former due to the better distribution of lthe fabrics and the later because of the center of mass of the distributed fabrics being disposed substantially on thelcenter of mass of the suspended tub and receptacle. Seventh, the washability `is substantially improved because of the increase in the interfacial scrubbing action within the fabrics themselves and the scrubbing action occurring on the back face of the receptacle. Eight, centrifuging is better because the radial thickness of the fabric annulusis greater when concentrated in the back half of the receptacle.
v ther important advantage is the room provided i. at the The drying of the fabrics is sub-` stantially improved because (a) as they get drier they o expand into the full volume of the receptacle, and (b) the coolingwater and condensate flow on theinner tubVV 31,102,407 h Patented Sept. 3,` v1963 fabrics become dry, they expand and move tol extend within the forward part` of the receptacle and at the time the fabrics are dry they will be striking on the door area of the machine. -By employing a servo mechanism t adjacent the door area, this striking of the fabrics against the mechanism will causethe mechanism to operateand thereby terminate the `operation ofthe machine atV tlhe time the fabrics are dry.
Vonly 36 high, 30" to 33" Wide, and 261/2 deep. The
. electric or the gas type.
When the machine is operated on a 115 volt line, thermal accumulating device tis employed embodying both a storage means and a heating means, either ofthe the entire cycle of washing and drying the fabricsuexcept for the period whent he` driving motor isr excessively Vloaded requiring additional wattage `above `the normal running wattage, during which time the electric heating means is de-energized for the short demand period.`
Y 'Ilhereformduring the laundering cycle prior to the evap-1 f orative` drying cycle, heat isbeing stored in the thermal 20` accumulating device.' f
A closed air recirculatory system is employed lfor/dryingthe fabrics in the drying cycle. Preferably a damper is provided in the Iair recirculatory system which 'is open during the inal centrifugingperiod forl initially heating the fabrics, receptacle and tub prior to therdrying opera'- tion.4 Heating at this period is important. since the in`- creased heat on the fabrics decreases the `kinematic viscosity of the water contained therein which accounts for the `additional water mechanically removed. from the fabrics toward the `end ofthe centrifuging period. It also raises the saturation to approximately 100% `and increases static pressure in the systemwhich breaks down the pneumatic `sticking of the fabrics to the wall. vAs a result, the drying cycle is started with `the recircu'- latoryairat a high temperature and' moisture level.`
v Upon termination of the extraction period by whatever means employed, thefblower for circulating the air in the 4closed recirculatory system is then operated` and a ow of water is provided for the condenser. The condenser is so located that only a portion of the recirculatory air is` contacted thereby for the purpose of drying the fabricsat a high tempenature and a high moisture o `from the blower and heater will be retained at a high content level.
o To condense water from Iair,ithe temperature :of the air must be lowered to the dew point, and 'by Ioperating i. on a small portion of the air only a small quantity of sensi- Ible heat isV lost while lowering the small portion :of air to the dew point, after which the dehumdifcation will take' place without any further loss'` of sensible heat. Be# cause of this lloW loss of sensible heat, `the delivered air level, substantially constant for the 2304 volt circuit when top of the front wall of the tub above the door opening o employed', or will be maintained high `with a slower progressive rate of reduction when the heat storage element is employed ou the `115 Vvoltfcircuit; Whe-n either the 230er 115 volt circuit is employed, it isdesirable to i employ extremely high temperatures atA the beginning of the drying cycle when the fabrics are thoroughly saturatedA with water and reduce the temperature thereafter so' that whenwthe fabrics are no longer Vsaturated they cannot be damaged by the heated recirculated air. lInitheillS -volt arrangement, the loweringbecomesl progressive. as` the fabricsbecome drier since the input heat to the heat storage element will not equal thelheat being delivered4 `therefrom to the air, and Aat the end of the' drying'cycle" the fabrics may be removed without any cooling time added Ito the cycle. When the 230 volt arrangement is employed-and a part of the heating element .is cut out of circuit, the delivered heat is reduced before the fabrics become dry near the end `of the drying cycle; still the i temperature of the lfabrics will he at suc-h a high demee The device is heated through l of the machine.
be required of several minutes without any input `'of heat at the end of the drying cycle so that the fabrics can be handled thereafter.
When `drying with either arrangement, a predetermined set time :may be employed `to terminate the operation.
Suche period 'of .time will be judged bythe operator Vand satisfactory results eanbe obtained, when using a yperiod of time lfor terminating the drying cy-cle, from' the experience had by the operator from several operations It was found, when fdrying with the 230 volt arrangement, that the drying Vtemperature curve was substantially flat throughout most 'of the drying period, 1 andV aty the end thereof, when Vsubstantially all of the 'l moisture has been removed 'from the fabrics, the temperature )rapidly rises. lThis point, known as the T.C.O.
' v. pointV (thermal cutoff point) -may be employed as the point of terminationjof the vdrying cycle of operation.
Whendrying with the 115 volt arrangement, the temperature is constantly dropping throughoutthe entire. drying :cycle', until at theend thereof, when ysubstantially all of the ymoisture has been removed from the fabrics, `the temperature Starts to rise. Y This point, known "as the 'RLT'.C. pointlreverse thermal cutoff point), may be employed as the termination point ofthe drying cycle of the 11'5 `volt arrangement. This can be used to eliminate the dryingftime'r and rbecorrie effective near the end of the operation ofthe washer timer which canbe again operated at the end :of `the drying cycle by the RTC.v or the arcano? with the screen mounted' out of engagement with the water during the washing cycle. The lint remains on the screen ,after the drying operation and during the lnext washing cycle so that it is not washed back -intothe new load of fabrics during ythe subsequent washingcyole. i However, during the centrifuging cycles ofthe subsequent washing cycle, the water is thrown *over the screen in :a downward direction so that the lint is washed from fthe screen fand into the drain without contacting the fabrics being washed, Thus, the lint is collected on the screen by an upward flow during the drying cycle and is washed therefrom by a n downward liow ater the subsequent washing cycle. i By,l
this arrangement, the lint screenis always clean"beforef i the drying cycle 'and is washed' into the drain without en- 'gagingV a new load lof fabrics being Washed in the subsey quent washing cycle and without the necessity (of using al removable screen.V i n `Certain fabrics adhere to the inner wall of theireceptacle y aiter the extracting operation, preventing them from dropi y wall; `and the adhesive sticking dueto the carboxyl-methyl i .T.C.O. "systems vtovterminate the operation and set up the 4 timer fora subsequent operation. This temperature ter# mination may be included in the timer which is employed for controlling theV cycles of washing and drying the fabrics. When in .the drying cycle, the timer may be v cut olf at .a fifteen Ior twenty minute point of operation `VVVfor'ironer ydry condition yof the fabrics to be picked up by the thermostat control mechanism for the air tempera-V v springs disposed in tension for supporting `a pair of cross ymembers atthe bottom of the tub. The cross members have spring-pressed pads which engage smooth plates or surfaces Vat .the front and rear of the machine. This sim ple suspension mechanism at the lower half of the tub permits the tub tov vibrate relative to the cabinet Without vibrating the cabinet any noticeable amount. A weight is priovidedon the cabinet in the nature' of an ironer which v is located therewithin enclosed by a door so that the cab'- inet actually houses a complete laundering machine, in-
. cluding fthe washer, dried, and the iro-ner. This additionalV weight `on the cabinet has the advantage `of further eliminating the vibration thereof when the tub and servo elements mounted thereon oscillate duringthe extracting' In view-of the fact that va soak cycle may be employed initially prior Ito the wash cycle of operation and additional water is introducedubetween the soak and washing cycles, a novel soap dispensing device is employed having '.aclosureelement upon which the soap is initially placed prior to the beginning of the operation. After the soak `gcyole, when the drainy is closed and water is introduced ,within the fabrics and receptacle, thev closure element of the `device opens, the water being extracted washes over the' closure element, and the soap is carried into the washingV Water, thereby cleaning the closure element andv mouth of the device and preventing theA `accumulation of soap thereon.y i
vA blower isrnounted upon a conduit formed on the p upper right-hand side of the tub in which a condenser is v through the changingof the location of the-facesto bein ping and tumbling during the drying cycle. This is usual-V ly caused, when one of these three things occur: the wedging due to the configuration ofthe tub and baffle; Vthe pneu- `matic'holding ofthe fabrics against the smooth peripheral cellulose contents of the `detergents which might be ernployed. This latter is an `antigraying agent employed to' prevent redeposition of the dirt on the fabrics. The reason that has adhesive fquality'is because the jell point' is too high for washing water temperatures, and, asa resuit, this also causes the sticking of the fabrics on the pe-` ripheral wall. It was found .thatfthis action of adhering' to the wall 'varies with operated upon.
Severalthings have beenAdoneto'reducefand overcome this adhesionof the fabrics to the peripheral ywall `of the tub at the end of centrifuging cycle of operation. First, the wedging action caused by the baffles when the following faces thereof :are radial hasl been overcome v divergent relation'to the radius. Second, the introductionV Vbefore 'the spin .cycle is substantially of lthe extremely high temperature air 'toward the end of the centriiuging cycle forms a' sterilizing cycle and pro dulces high static pressure with-in the tub whichfreduce and substantially overcome the pneumatic sticking, and third, by extracting a substantial amount of water from the fabrics prior to thefinal centrifuging operation. VSuch initial extraction isfaccornpanied by Aaccelerating fthe receptacle for =a very shortperiod of time, in the nature of a couple lof seconds, to Iraise the speed thereof to approximately 250y rpm.,k from which speed it immediately decelerates to normal washing speed.v The receptacle Vis again accele-A rated and this time, since a substantial amount of water was extracted from the fabrics in the prior laccelerating cycle, the second acceleration for `a veryv short period of time, in the'nature ofa couple of seconds, raises Vthe speed of the receptacle to substantially 350l r.p.m.`so that yaddi'- tional water will he extracted from the fabrics, after which the receptacle will `coast back downto the normal washing speed. Additional employed if desired;fthereafter the final extracting cycle of the receptacle at high' spin speed occurs. The initial cir- Itraction of water before the spin is also beneficial in reducing the load on :the motor. After the centrifug'ingl cycle it was found that the fabrics no longer adhere to the.` inner wall 'of the receptacle and will immediately break therefrom and begin to tumble yat drying-speed.
. The introduction of hot water at 'the final rinsecycle benecial in raising the temperature of the fabrics and tub, which is further raised, as pointed out above, by the introduction -`of heat either near 'the end of the centrifuging cycle or immediatethe type of fabrics whichare being periods of acceleration mayl be` ly after the first 'acclerating spin which .removes a substantial amount of water which is not heated. Thus, the pre-wash cycle `and the centrifuging 1of the water from the fabrics in steps lat the end of washing cycle have several advantages. First, the ldirt and soiled kwater are extracted from the fabrics and drained from the tub. Second, the extracted water washes the lint from the screen Iwhich was impinged thereon during the prior drying cycle and` `conducts it to the drain. Third, after the drain is vclosed and fresh water is introduced into the fabrics land tub, the extracted water washes the soap into the water and `cleans the closure element and mouth of the bellows onto which the soap was stored during the soaking cycle. Fourth, if twenty-five pounds of water lare retained within a sixpound `load of fabrics, eleven or twelve pounds of the water `are extracted lay the two initial acceleration spins. It is -to lbe understood that any number of the initial spins may fbe applied within the cycle Ibut two of such spins reduce the weight of the `water `within the fabrics to approximately one-'half- The final 1centrifuging spin at high speed removes yall but approximately three to five pounds of water in the six-.pound load, Especially is this true when hea-t is initially introduced to the tub 'after the first acceleration spin. rIhus, with the water content of the fabrics reduced to ya minimum, with the receptacle yand fabrics heated at a higher temperature than normally would occur, and the dryingat a high temperature moisture content level, the drying cycle is reduced to substantial-ly one-half or even less over systems which do not employ the features above enumerated. l-t is to fbe understood that a centrifugal `device may be employed to cut olf .the motor after the receptacle has `heen energized to accelerate to some specific predetermined speed rather than ldepending upon `a time interval, as the speed attained when relying on time will depend upon the contained load.
Accordingly, the main objects of the invention are: to provide Ia laundering machine which produces la complete cycle of washing and `completely drying fabrics eliiciently in `a minimum amount of ti-me; to provide a laundering machine with a tub `and receptacle which 'are tilted at the top rearwardly to have lonly the rear half of the volume of the receptacle utilized during the washing ycycle and the entire volume of the receptacle available during the drying cycle; to provide a machine which washes, rinses, wet-dries and :completely dries fabrics which applies heat thereto during :the nal rinse and after the rst acceleration spinto decrease the kinematic VViscosity of the water in the fabrics in the closed air recirculatory system so as to dry at a high temperature and moisture content level, and, in general, to provide 1a laundering machine which is simple in construction and economical of operation lboth i-n the use of water for washing, rinsing and `condensing and in the use of `heat for 4drying both by the time and method of application.
Other objects and features 4of novelty oflthe invention will be specifically .pointed out `or will lbecome apparent when referring, lfor `a better understanding of the invention, to the fol-lowing description taken in conjunction with the accompanying drawings, wherein:
FIGURE 1 is a perspective view of 'a laundering machine embodying rfeatures of the present invention;
*IG 2 is an enlarged, broken sectional View of the machine illustrated in FIG. l, taken on the line V2 2. thereof;
FIG.`3 is an enlarged, sectional view of the structure illustrated in FIG. 2, taken on the line 3 3 thereof;
FIG. 4 is a broken, sectional view of the structure illustrated in FIG. 3, taken on the line `4 4 thereof;
FIG. 5 is an enlarged, sectional view of the structure illustrated in FIG. 4, taken on the yline 5 5 thereof;
FIG. 6 is a broken, sectional View of the structure illustrated in FIG. 2, taken `on'th'e line 6 6 thereof;
FIG. 7 is an elarged, sectional View of the structure illustrated in FIG. 6, taken on the line 7 7 thereof;
FIG. 8 is la broken view of the structure illustrated in FIG. 7, showing additional structure applied thereto;
FIG. 9 is a sectional View of the structure illustrated in FIG. 8, taken on the line 9 9 thereof;
FIG. l0 is an enlarged, sectional view of the structure illustrated in FIG. 6', taken on the line -10-10 thereof;
FIG. 11 is a sectional view of the structure illustrated FIG. 1G, taken on the 'line 11 11 thereof;
FIG. 12 is ya sectional view of the structure illustrated in FIG. l0, taken `on the line 12-12 thereof;
FIG. 13 is a lbroken view of the structure illustrated in FIG. 10, showing a mechanism added thereto;
FIG. 14 is 4a plan view of structure ywhich is similar to that illustrated in FIG. 2, showing a modified form of supporting mechanism;
FIG. 15 is an enlarged, sectional view of the structure illustrated in FIG. i4, taken on the line 15 15 thereof;
FIG.` 16 is an enlarged, -brolcen sectional view of the structure illustrated in FIG. 14,` taken on the l-ine `16-16 thereof;
FIG. l7 is Van enlarged, broken sectional view of the structure illustrated in FIG. 4, taken on the line 17 17 thereof;
FIG. 18 is a sectional View of the :structure illustrated in FIG. 17, taken on the line `18 IS thereof; l
FIG. 19 is a viewof a chart illustrating the method of removing moisture from the circulated air;
FIG. 2O is `an enlarged, broken sectional View of the structure illust-rated in FIG. 2, taken :on the line 26)'--20` thereof;
FIG. 21 is a sectional view of the structure illustrated in FIG. 4, taken on the line 21-21 thereof;
FIG. 22 is anend View of the `structure illustrated in FIG. 21, as viewed from line 2.2 22 thereof;
FIG. 23 is a sectional View `of the structure illustrated in FIG. 21, taken on the line 2.3 23 thereof;
FIG. 24 is a broken sectional View `of the structure illustrated in FIG. 23, taken on `the line 24-24 thereof;
FIG. 25 is :a diagrammatic View :of the tub 4and receptacle illustrating a washing cycle of operation;
FIG. 26 is a view of the structure illustrated in FIG. 25, showinga drying cycle of operation;
FIG. 27 Iis a front view in elevation of the tub showing the path of circulated lair which occurs during the drying cycle;
FIG. 28 is an enlarged, broken sectional View of the structure illustrated in FIG.- 27, taken on the line 28-255` thereof;
i FIG. 29 is a drying cycle chart comparing the drying time for the `different arrangements of the machine;
FIG. 30 is a View -in elevation of a control panel yfor regulating the cycle of operation of the machine;
FIG. 31 is a view of structure, similar to that illustrated in FIG. 3l), showing another form thereof;
FIG. 32 is a View of structure, similar to that illustrated in FIG. 30, Vshowing a` further form thereof;
FIG. 33 is a View of structure, similar to that illustrated in FIG. 30, showing 'a still `further form thereof;
FIG. 34 is a plan view of structure which is adjusted by the setting of-the :dials on the panels lof FIGS. 30 to v 33A inclusive;
FIG. 35 is la View lof a contact element for terminating the drying cycle;
FIG. 36 is a sectional View of the structure illustrated' `in FIG. 35, `taken on the line 36-36 thereof;
FIG. 41 is a front perspective View of the belt drives Aillustrated in FiG.
FIG. 42 is aperspective view of the motor, pulleys and clutches illustrated in FIG. 4l;
FIG. 43 Vis Ia perspective view of the pump and the clutch drive therefor illustrated in FlG. 4l;
FIG; 44 is a view of a pulley illustrated in FIG. 40, with a pulley connected thereto iu cverrunning relation therewith; y
FIG. 45 is a sectional view tof `a thermal storage element similar to that illustrated in FIG. 4;
' FIG. 46 is an enlarged, sectional view of the structure illustrated in FIG. 45, taken on the line 1o-'46 thereof;
FIG. 47, isqa sectional View of structure, similar to that illustrated in FIG. 45, `operating by a gas heating device; FIG. 48 is an enlarged, sectional view Vof the structure illustrated in FIG. 47, taken `on the line-4d 43 thereof;
PlG.,49 is yan enlarged, sectional View of the structure illustrated in FlG. 47, taken on the line #19*49 thereof;
FIG. 50 is an Voperation chart showing the sequence of operation in the machine;
FIG. 5l is a wiring diagram lof the machine when employing the thermal storage means illustrate-d in FG. 5,
FIG. 52 is awirin'g diagram, similar to that illustrated in lG. 51, employed with the thermal storage element illustrated in FIG. 45.v
Referring more particularly to FIGURES Vl to 13 inelusive, the laundering machine of the present invention embodies a cabinet 411 having a front panel 41 `containing a Idoor i4l; in the center and a door 43 at the upper lefthand corner. A door 44 is illustrated at the upper righthand corner which permits access to the'overload protec- ,tive devices when employed in the system. The front The Suspension System Uprights 51 at the front and uprightsy SZ at the rear, forming the corner posts of the fname, support brackets 53 yand 541 on'which tension springs 55 are suspended, being adjustable thereon by nuts 56 threaded on bolts '57. The springs have hooks 58 on the lower ends which extendwithin apertures in lbrackets dsecured Ito forward and rearwardly extending tubular elements 61. The
' tubular elements are attached to the bottom of a tub d2 by stampings 63 land 64, the stamping o4 being scoured directly to the tub while the stamping 63 is secured to a sump 65 fat the bottom left-hand side of the machine. The entire tub is `supported upon the two spaced tubular elements 61 which extend from the front to the rear of the cabinet. lt will be noted that thetubular elements d1 Vlare mounted at an angle to the axis of the tub `so that when the tubular elements are disposed in-fa horizontal plane the tub `62 will be tilted rearwardly at the top to have the central axis thereof disposed at substantially a 5 angle tothe horizontal. f t
As illustrated -in FIG. 7, each end of the tubular. ele-` ments 61 is enlarged at 66 for the reception of a sleeve o7 which is secured therein. Bach end of the central aperture 68 of the sleeve 67 has ia bearing 69 therein .which supponts a shaft 71.V A flanged disk '72 is mounted on the protruding end of the shaft 71 and a friction washer 73 is mounted on the forward face thereof encompassed by the ilanged edge. The structural elements 51 and 52 of the Vcabinet have laterally rex-tending channel plates 74 mounted `thereiacross as part of the frame, on which polished plates 7S, made of stainless steel or the like, are
secured, aligned with the ends of the tubular element 61 and disposed normal thereto. A recess 7 6 is provided on the forward end of the sleeve 67 forming a shoulder 77 `against which a coil spring 73 abuts when the forward end engages the rear side of the flanged washer 72. With this arrangement, a predetermined outward pressure is applied at each end of the tubular element 61 against the friction lwashers 73 which restricts the lateral movement of the washers `over the plates 75 when the tub gyrates during its operation.
The tub 6E contains a rotor '79 having a shaft 80 thereyon which is mounted in a bearing supported by spiders 82 on the rear wall 83 of the tub in a mannery as illustrated in the above mentioned applications. The shaft S0 supports a pulley S4 which is driven by a belt 85 from a pulley E16 on la shaft of a tnansmission 87 which is mounted ydirectly upon a motor 88. The ltub `has va ange against which Vthe peripheral edge of the rear walll83 abuts and is secured in sealed position by the U-shaped band 89 having a sealing gasket therein, tall as described in the above-rnentioned copending applications.
The peripheral wal1-91 of the tub has Ya conduit 92 in unit relation therewith extending over `an opening *93 therein which is yenclosed by a lint screen 94. As illustrated in FIG. 3, the conduit 192 is of narrow width relative to the depth of the tub. The top of the conduit supports la blower 95 which is preferably of the centrifugal type having an inlet on the bottom in communication with the top ofthe conduit and h-aving a cylindrical-shaped youtlet A thermal accumulating device or exchanger 97 is mounted :on the front face 98 of the tub above the door opening 99 thereof. The accumulator, as `illustrated in FIG. 5, embodies heavy plates 1111 which may be cast iron or of similar metal construction having fins 102 on the outer sides thereof and having van electric heating unit 1123 disposed therebetween. The plates 101 in the heating unit 1613 are supported within a conduit 104 by bolts 165. 'l`he conduit 114 is mounted within a metal sheath 1116 having internal thermal reiiecting walls by pins 107 which have point engagement with lthe top and sides of the sheath, therebyl maintaining the conductivity between the sheath and conduit `to a minimum.
An elbow 1111 has a cylindrical end joined to the blower outlet 9d and a rectangular end joined to the conduit 1114. rihe adjacent ends of the plates 1111 have tapered extensions 111 from which a Vc urved vane 112 extendsy into the elbow 1118 to produce an equal division of the air past the ins 1192 of the plates. The opposite end of the conduit 164 is extended downwardly at`113 tto be joined to a rectangular elbow'114 which is supported by the sheath 166 through welded flanges 115 thereon. The rear side of the elbow 114 has an opening aligned with an opening 116 located adjacent to the central opening 99 of 'the tub for the admission of air into the tub andv receptacle.
The cylindrical portion of the elbow 103 has a damper 11.7 pivoted therein on a shaft 118 on which a pinion 119 is secured. The teeth of the pinion are engaged by the teeth of a rack 121 which is'. longitudinally movable to forward and retracted positions by a spring biased solenoid 122, the gear, rack `and pinion being disposed on the outside'of the elbow. .Y l Y A pulley 123 is connected to a shaft '124 of the blower 95 through a clutch `1125V which is operated by a solenoid 125 to engaged and disengaged positions. A pump l127 of the positive displacement type is mounted on the tub between the motor and the blower. A pulley 1215 and a pulley 129 are mounted upon the shaft of the pump, each having `a clutch of the overrunning type which is effective in opposite directions of rotation of the motor for engag- Iing .the shaft and driving the pump in a single direction. The forward end of the shaft S1 of the motor S3 has a pair of pulleys 131 and132 thereon. A belt 1133 connects the pulley 132 to the pulley 129, while a beltlfl con-

Claims (2)

1. IN A LAUNDERING MACHINE, A TUB, A RECEPTACLE IN SAID TUB, MEANS FOR DRIVING SAID RECEPTACLE IN ROTATION FOR PERFORMING A WASHING OPERATION, MEANS FOR ADMITTING WATER TO SAID TUB, MEANS FOR REMOVING WATER FROM THE TUB, MEANS FOR DRIVING SAID RECEPTACLE AT HIGH SPEED FOR EXTRACTING WATER FROM THE FABRICS THEREWITHIN AFTER A WASHING OPERATION, A DISPENSING DEVICE AT THE TOP OF SAID TUB HAVING A TILTABLE PLATE THEREON ON WHICH SOAP OR DETERGENT IS PLACED, AND A SOLENOID FOR TIPPING SAID PLATE FOR DELIVERING SAID SOAP OR DETERGENT TO SAID TUB, SAID PLATE BEING LOCATED TO HAVE EXTRACTED WATER WASH THEREOVER DURING EACH EXTRACTING CYCLE OF OPERATION OF THE MACHINE.
5. IN A COMBINATION WASHING MACHINE FOR PERFORMING A COMPLETE LAUNDERING CYCLE, A TUB, A RECEPTACLE IN SAID TUB, MEANS DRIVING SAID RECEPTACLE FOR PERFORMING A WASHING CYCLE OF OPERATION ON FABRICS CONTAINED THEREIN, MEANS DRIVING SAID RECEPTACLE AT HIGH SPEED FOR A CENTRIFUGING OPERATION TO EXTRACT WATER FROM SAID FABRICS, MEANS CIRCUULATING AIR THEREAFTER THROUGH SAID TUB, RECEPTACLE AND FABRICS FOR PERFORMING A DRYING OPERATION THEREON, SAID DRIVING MEANS COMPRISING A MOTOR, AND MEANS FOR ENERGIZING SAID MOTOR FOR ACCELERATING THE RECEPTACLE FOR A SHORT INTERVAL OF TIME WHEN CONNECTED FOR HIGH SPEED OPERATION TO A SPEED LESS THAN THAT ATTAINED DURING THE CENTRIFUGING OPERATION AND PRIOR TO THE CENTRIFUGING OPERATION FOR EXTRACTING AN AMOUNT OF WATER FROM THE FABRICS AFTER WHICH THE RECEPTACLE IS PERMITTED TO COAST DOWN AND BE DRIVEN AT WASHING SPEED.
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