US2641268A - Dishwashing machine - Google Patents

Dishwashing machine Download PDF

Info

Publication number
US2641268A
US2641268A US224478A US22447851A US2641268A US 2641268 A US2641268 A US 2641268A US 224478 A US224478 A US 224478A US 22447851 A US22447851 A US 22447851A US 2641268 A US2641268 A US 2641268A
Authority
US
United States
Prior art keywords
liquid
receptacle
scoops
annulus
tub
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US224478A
Other languages
English (en)
Inventor
John T Hellyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thor Corp
Original Assignee
Thor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to BE505311D priority Critical patent/BE505311A/xx
Application filed by Thor Corp filed Critical Thor Corp
Priority to US224478A priority patent/US2641268A/en
Priority to GB17155/51A priority patent/GB687824A/en
Priority to FR1051198D priority patent/FR1051198A/fr
Application granted granted Critical
Publication of US2641268A publication Critical patent/US2641268A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/22—Rotary spraying devices

Definitions

  • This invention relates to dishwashing machines of the type especially adapted for use in homes and apartments and which is also capable of embodiment in suitable form for use in restaurants, hotels and various institutions.
  • the machine embodying the present invention is provided with mechanism utilizing centrifugal force to effect high velocity projection of washing liquid against and around dishes. and other articles to be washed, supported in the dish holder or rack. More specifically, the machine includes liquid circulating mechanism, comprising an upwardly open washing liquid reservoir or receptacle, rotatable at high speed about an upright axis, for building up against the inner wall thereof an annulus of Washing liquid, together with liquid diffusing scoops or nozzles for delivering high velocity jets or sprays or streams of washing liquid, of considerable force, against the dishes and articles supported in the dish holder or rack.
  • liquid circulating mechanism comprising an upwardly open washing liquid reservoir or receptacle, rotatable at high speed about an upright axis, for building up against the inner wall thereof an annulus of Washing liquid, together with liquid diffusing scoops or nozzles for delivering high velocity jets or sprays or streams of washing liquid, of considerable force, against the dishes and articles supported in the dish holder or rack.
  • the scoops or nozzles are mounted for rotating about the same axis of rotation as the receptacle and have their inlet ends positioned so as to project into the annulus of washing liquid in the receptacle, and having their outlet ends terminating at different radial distances with respect to said axis, so that said scoops or nozzles are caused to be driven in the same direction of rotation as said receptacle and annulus of liquid.
  • the annulus of liquid serves as the driving force for effecting rotation of said scoops or nozzles, and by virtue of which the jets or sprays or streams of washing liquid discharged from said scoops or nozzles continuously move rotatively about said axis for insuring complete coverage of the entire area of the dish holder or rack.
  • the rotatable receptacle is so designed as to automatically measure and retain the proper quantity of washing liquid for use and reject any excess liquid, so that it is not necessary to rovide mechanical means for measuring liquid, nor is it necessary for the operator of the machine to measure the predetermined quantity of water to be introduced or to carefully observe the filling operation.
  • the dishwashing mechanism is constructed so as to be self draining at the termination of-each 2 cleansing and rinsing operation.
  • the mechanism is such that it eliminates the necessity of employing drain cocks or equivalent devices which must be opened in order to discharge liquid from the liquid reservoir.
  • drain cocks or valves are employed in machines of this type, they frequently become clogged with food particles and are rendered ineffective.
  • drain cocks or valves are dispensed with and at the same time the possibility of clogging of the drain conduits or outlets by food particles is totally eliminated.
  • one of the objects of this invention is to provide a dishwashing mechanism which produces a rotating annulus of liquid atrelatively high speed, together with water diffusing means in the form of scoops or nozzles, having portions extending into the annulus of liquid and driven thereby in the same direction, but at a lower rate of speed, whereby washing liquid is picked up from the liquid annulus and forcibly projected in an upwardly direction inthe form of a jet, spray or stream, against and around the articles means.
  • Anotherobject is to provide improved dish washing mechanism of the character indicated, wherein the scoops or nozzles are driven rotatively by the rotating liquid annulus and wherein speed retarding means is provided for insuring rotation of the scoops or nozzles at'a speed substantially less than the speed of rotation of the liquid annulus.
  • a further object is to provide a dishwashing mechanism of the character indicated, wherein a plurality of scoops or nozzles have their discharge ends located at different radial distances with respect to the axis of rotation thereof, so that upwardly p'rojectingjets, sprays or streams of washing liquid are continuously rotated and thereby define" a series'of overlapping annular areas, completely covering the cross-sectional area of the" article supporting rack.
  • a still further object is to provide an improved dishwashing mechanism of th character indicated, which is relatively simple in construction, highly efiicient in operation and which is capable of being economically manufactured.
  • a still further object is to provide a novel brake mechanism for controlling the speed of rotation of said water diffusing mechanism.
  • Figure 1 is a vertical sectional view through the dishwashing machine embodying thepresentinvention.
  • FIG. 2 is a horizontal sectional View through the machine, taken substantially as indicated at line 22 on Figure 1,
  • Figure 3 is a diagrammatic view of the water diffusing means.
  • Figure 4 is an enlarged axial section. through the: lower portion of the machine; including the driving mechanism.
  • Figure 5 is a horizontal sectional view, taken at. line 5-5 on- Figure 4.
  • Figure 6 is a side elcvational view of the water diffusing means, comprising scoops and: supporting spider, taken substantially as indicated at line 6-6 on Figure 5.
  • Figure 7 is a-horizontal sectional View through the driving mechanism, taken at line I -1' on Figure 4.
  • Figure 8' isv a horizontal section through. the brake. mechanism or retarder' device, taken as indicated at 8 8 on Figure 4'.
  • Figure 9' is'a vertical: section through the brake mechanism orretarder'device, taken as indicated at line 9-9- on Figure 4.
  • a' dishwashing machine embodying my present invention having a suitable cabinet structure, indicated generally at I0, provided with adjustable sumziortingv feet Ill, for-"convenient installation in the kitchen of a. home or apartment.
  • the machine includes a power driven pump, designated generally at l2, having a discharge conduit hi, to' which may beconnected a suitable: hose for discharging the used washing liquid into a drain.
  • a power driven pump designated generally at l2
  • the machine embodying the present invention may be: produced without the cabinet l0, and may be mounted directly within the cabinet structure of a: kitchen sink, in which case the pump. I2 and drive therefor, may be dispensed with and the-conduitsfor draining the used washing liquid could beconnected into.
  • a tub l6, of circular cross-section Mountedv within the cabinet, as illustrated in the drawings, is a tub l6, of circular cross-section, the lower end ofwhich is of reduced diameter, as indicated at H, forming an annular shoulder [8 within the interior. thereof,v and'upon which shoulder isseated a resilient ring of suitable material, such as rubber,.in sealing relaticn: to said shoulder.
  • 'Ihe'ring 20 surroundsithe outer marginal edge of a water deflector 22, of annular form, which extends in an inwardly and downwardly direction, as clearly shown in Figure 4 of the drawings. Thepurpose of this annular deflector will hereinafter be described in detail.
  • a wire basket or. rack 26 Seated in an offset annular shoulder, 22a, of the deflector is a circular, reticulated member or screen: 25', and seated upon the resilient ring 20, as seen in Figure 4, is a wire basket or. rack 26; which, it is to be understood, is formed with suitable wire forms and abutments, constituting pockets and holders for various dishes, plates, glasses, and the like, to be washed.
  • This particular dishwashing rack does not constitute a part of the present invention and will accordingly not be described in further detail.
  • the tub I 6 has resiliently and firmly suspended from its bottom all operating and driving mechanism and is totally supported in the cabinet H! by a plurality of brackets 50, interconnected with and supported upon brackets 31, carried by the corner posts of cabinet it.
  • a funnel-like device 33 Mounted on the outer wall of the tub and in open communication with the interior thereof, above the deflector ring 22, is a funnel-like device 33, through which a supply of washing liquid is admitted to the interior of the tub.
  • a water supply conduit 34 is mounted on the outer wall of the tub with the discharge end thereof above and in registration with the funnel-like device 33, and the water supply conduit being wheat to control by a solenoid operated valve 35, by virtue of which water: may be admitted into the machine under electrical control. It is to be understood, however, that the water may be admitted into the machine under manual control without in any way affecting the operation of the machine embodying the present invention.
  • my novel Water action mechanism which comprises an annular, upwardly open receptacle or spinner rim to, the: side wall of which is of curved or U shaped conformation, as'clearly seen in the drawings.
  • the upwardly open receptacle or spinner rim 40' is adapted to be rotated at high speed, preferably in the range of 500 or 600 R. P. M., to build upagainst the outer wall thereof an annulus of washing liquid, a indicated generally in. dotted lines at 42. As shown, the crosssectional dimensions of the liquid annulus, at the outset.
  • the bottom of the rotatable receptacle or spinner rim tapers upwardly towards the center thereof, as clearly seen in Figure 4 of the drawings, and said bottom is formed with a plurality of circumferentially spacedapart arcuately extending orifices 43, located slightly inwardly of the upper terminal edge 40a of the rotatable receptacle, as clearly seen in Figures 4 and 5 of the drawings.
  • washing liquid is initially admitted to the tub after the receptacle M commences to rotate so that the liquid admitted, upon striking the bottom of the receptacle, is thrown by centrifugal force across the bottom of the receptacle, spanning the sumps 44, so as to accumulate in the outer rim portion of the receptacle 40, and build up ilzlto a rotating annulus of liquid, as indicated a
  • the driving mechanism for rotating the receptacle 40 is totally and resiliently suspended from the bottom of the tub l6.
  • An inverted channel member 50 extending in horizontal direction, is supported in spaced-apart relation to the bottom of the tub 16 by means of a plurality of resilient connectors 52, which serve to dampen and absorb vibration incident to the operation of the drive mechanism.
  • an electric motor 54 Suspended from the main supporting channel 50, through the medium of suitable brackets 53, is an electric motor 54, disposed in a vertical position.
  • a pulley 56 Mounted on the upwardly extending portion of the motor shaft 55, is a pulley 56, around which is trained a V belt 51, and which belt likewise is trained around the upper portion of a doublepulley 58.
  • lhe pulley 58 is rigidly secured by means of a set screw 59 to a sleeve 6., joumaled in a pair of vertically spaced bearings 62, in a bearing bracket 54, which is rigidly attached to the channel member 50, as seen in Figure 4 of the drawings.
  • the bearing bracket 64 is provided with a tubular portion which extends upwardly through the bottom wall of the tub, and seated against the upper end of said tubular portion is a thrust washer 65, upon which is seated a hub 66, which is rigidly connected to the bottom wall of the upwardly open receptacle 40.
  • the hub 66, of the upwardly open receptacle is press fitted upon the upper end of the sleeve 60, so as to rotate therewith.
  • rotation is transmitted from pulley 56 to pulley 58, thence to the sleeve 60 and to the hub 66 of the upwardly open receptacle 4B, and due to the speed reduction attained by the differential of diametersof the pulleys 5B and 58, said receptacle 40 is caused to be rotated at high speed, preferably but not necessarily limited to the range of 500 or 600 RrP. M.
  • the liquid 'pick-up'and dispersing means comprising, as shown in the drawings, a three (3) armed spider 10, with the arms located preferably in equal angular spaced-apart relation.
  • Supported on the outer ends of each of said arms is ascoop or nozzle element 12, of generally tubular 'form, with their outer ends projecting into the outer rim area of the rotatable receptacle 4., and terminating at a position within the liquid annulus 42, as seen in Figures 4 and 5 of'the drawings.
  • tubular scoops each extend at .a slight angle to radial, and have their outer ends formed withan inclined mouth, as indicated at 13, extending in a direction directly opposite to the direction of rotation of the open receptacle 40, as indicated by the arrows in Figure 5 of the drawings.
  • These scoops have their inner ends, that is, opposite the inlet ends, formed to constitute discharge outlets, terminating in the form of upwardly open spoons, as indicated at 14;
  • the discharge ends of the tubular nozzle or scoops 12 are located at different radial dimensions with respect to the axis of rotation of the receptacle 48.
  • the liquid of the annulus is driven through the open ends 13 of said scoops at high velocity, and discharged through the outlet ends 14 in the form of jets or sprays or streams of liquid, in an upward direction, into contact with and around the dishes and other articles supported in the wire basket 26.
  • the liquid discharged by the scoops is at relatively high velocity, dueto the high speed of rotation of the liquid annulus, so that the liquid is caused to forcibly impinge upon the dishes and other articles supported in the basket 26, for insuring a proper and efficient cleansing thereof.
  • the spider for supporting the scoops is rigidly secured, as by threading, upon an upright shaft 80, journaled within the sleeve 69, and is supported on a thrust washer 8!, seated against the upper end of said sleeve.
  • the lower end of said shaft projects below the lower end of the sleeve and has rigidly secured thereto, by means of set screws 83, a cup shaped brake drum 85, opening in a downwardly direction, as-clearly seen in Figures 4 and 9.
  • brackets Bl Connected to thechannel 5! by brackets Bl, is a horizontally extending plate 88, having a pair of up-struck lugs, or stops 89.
  • a friction device comprising a pair of brake shoes 96, the outer surfaces of which are of a contour corresponding to the curvature of vertical wall of the drum 85.
  • the outer faces of said shoes are provided with grooves or recesses 9!, as seen in Figures 8 and 9 of the drawings, and freely seated in said grooves are strips of friction, brake lining material 92.
  • the force exerted by the spring 96 determines the extent of torque transmitted through the brake lining to the drum for effecting a braking or retarding action upon th spider and its scoops. in opposition to being driven by the liquid annulus incident to rotation of the receptaole 40-.
  • the lip-struck lugs 89 are positioned so as to constitute stops against which abut the ends of thebrake shoes 98, and thusoppose a tendency for the shoes to rotate incident to'rotation of the drum 65.
  • the compression spring serves as the torque limiting factor in exerting a predctermined.
  • the brake with their friction linings could be fixedly secured to and rota-ted by the shaft 39, and brake drum held stationary by being mounted fir:- edly on the support 38, in which event the device would function substantially identically to disclosed.
  • V belt 93' Trained around the lower portion of the double pulley 58 is a V belt 93', which likewise is trained around a pulley 38 to drive the pump 12, for forcibly discharging the water from the tub 6.
  • the pump suspended by a U-shaped bracket 98 from the main supporting channel 58.
  • the bottom wall of the tub i6 tapers'in an upward direction toward the center thereof and terminates in an upwardly projecting annular collar Elli). in spaced-apart relation to and surrounding the tubular body of the bearing bracket 65. Seated on the upper end of said collar I99 is an annular seal member till, preferably of resilient material, snugly surrounding the body of the bearing bracket 64, so as to prevent, in the event of some accidental clogging of the drainage system, water overflowing the upper marginal. edge of the collar Hill, and spilling over onto thedri-ving mechanism.
  • the bottom of the tub is formed with a suitable sump, not shown, having a downwardly extending annular discharge nipple I04, connected by'a flexible hose to the inlet slide of the pump l2.
  • the motor is then energized to cause the rotatable receptacle or spinner rim '40 to be rotated. During this period the spider and: scoops remain stationary. Water is then admitted. through the conduit 34 and funnel 33 to the interior of the tub and the water discharging over the deflector ring 22 spills onto the central por-' tion of the bottom of the receptacle 40 At the time of introduction of washing liquid, or immediately after adequate liquid has been admitted to the machine, suitable detergent may then be introduced into the machine.
  • the scoops and spider Due to the retarding device or brake above described, the scoops and spider have a load imposed there on and hence said scoops and spider are causedto be rotated at a speed substantially less than the speed of rotation. of the liquid annulus, and by virtue of which the Washing liquid, comprising the liquid annulus, is picked. up at the inlet ends of the scoops and discharged through the outlet ends thereof at extremely high velocity.
  • the water discharged from the scoops is projected in an upward direction in the form of jets, streams or sprays, and as abov mentioned results in causing said jets, streams or sprays to forcibly impinge upon the dishes or other articles supported in the rack or basket 26, covering the on tire cross-sectional area of the basket, and them by insuring an efficient cleansing operation upon said dishes, etc. in a minimum period of time.
  • the used water drains or drops back either directly on the bottom of the receptacle 4D, or upon the deflector ring 22 and thence on the receptacle 40, so that the washing liquid is continuously used over and over again. There is no appreciable loss of the original quantity of washing liquid during the performance of the washing operation.
  • the mechanism may be further simplified by dispensing with the outer cabinet or casing and also the pump and by gravity from the tub Hi to the drain.
  • jets or sprays being directly upwardly, in a generally funnel-shape conformation, and due to the continuous movement of such jets or sprays, as well as the fact that the jets or sprays move in orbits overlapping each other, it is now possible to obtain complete coverage of the entire cross-sectional area of the supporting rack or basket in which the dishes are supported.
  • the high velocity jets or sprays thus assume varying angular positions with respect to the individual dishes or other elements supported on the rack, so that said jets or sprays strike against all the surface areas of the dishes with considerable force and at varying angles.
  • said jets or sprays forcibly impinge against all surfaces of the dishes, at an acute angle, and effects efficient dislodgment and removal of all of the food particles from the surfaces of the dishes, irrespective of the various angular positions assumed by the dishes while being supported in the basket.
  • the construction thus insures proper and efficient cleansing of all surfaces of all of the dishes or other articles supported in the wire rack or basket in a comparatively short period of time,
  • a dishwashing machine comprising a tub, an article receiving rack mounted in the tub, an upwardly open liquid receiving receptacle mounted in the tub, below said rack, drive means for rotating said receptacle about an upright axis at a speed sufficient to create a rotatin annulus of liquid against the interior wall of the receptacle, a plurality of scoops mounted for rotation about said axis, and having inlet portions positioned in the path of travel of the liquid annulus to pick up liquid therefrom and outlets for discharging the picked-up liquid in the form of a spray, in an upwardly direction against and around articles on said rack, said scoops being mounted for free rotation about said axis so as to be rotated by the movement of and in the same direction as said liquid annulus, and means for retarding the rotation of said scoops to a speed less than the speed of rotation of said liquid annulus.
  • a dishwashing machine comprising a tub, an article receiving rack mounted in the tub, an upwardly open liquid receiving receptacle mounted in the tub, below said rack, drive means for rotating said receptacle about an upright axis at a speed sufiicient to create a rotating annulus of liquid against the interior wall of the receptacle, a spider journaled for free rotation about said axis, said spider having a plurality of radially projecting arms, a plurality of scoops mounted on said arms for rotation about said axis, and having inlet portions positioned in the path of travel of the liquid annulus to pick up liquid therefrom and outlets for discharging the picked-up liquid in the form of a spray, in an upwardly direction against and around articles on said rack, said scoops being mounted for free rotation about said axis so as to be rotated by the movement of and in the same direction as said liquid annulus, and means for retarding the rotation of said scoops to a speed less than the speed of rotation of said liquid annulus.
  • a dishwashing machine comprising a tub, an article receiving rack mounted in the tub, a
  • tubular drive shaft an upwardly open liquid receiving receptacle mounted on said shaft, within said tub and below said rack, drive means for rotating said shaft and receptacle about an upright axis at a speed sufficient to create a rotating annulus of liquid against the interior wall 'of the receptacle, an upright shaft journaled in the tubular drive shaft, a spider mounted onthe upper end of said upright shaft and having a plurality of radially projecting arms, a plurality of scoops mounted on said arms and having inlet portions positioned in the path of travel of the liquid annulus to pick up liquid therefrom and 11 outlets for discharging the picked-up "liquid in the form of a spray, in an upwardly direction against and around articles on the rack, said scoops and spider being mounted for free rotation about said axis by the movement of and in the same direction as said liquid annulus, and means for retarding the rotation of said spider and scoops to a speed less than the speed 'ofrotation of said liquid annulus.
  • a dishwashing machine comprising a tub, an article receiving rack mounted in the tub, an upwardly open liquid receiving receptacle mounted in the tub, below said rack, drive means for tioned in the path of travel of the liquid annuhis to pick up liquid therefrom and outlets for discharging the picked-up liquid in the form of a spray, in an upwardly direction against and around articles on said rack, said scoops being circumferentially spaced apart and having their outlet ends located at difi-erent radial distances from said whereby liquid picked up from said liquid annulus is discharged through the outlet portions of said scoops, in the form of sprays covering the entire cross-sectional area occupied by the article receivin rack, said scoops being mounted for free rotation about said axis so as to be rotated by the movement of and in the same direction as said liquid annulus, and means for retar ing the rotation of said scoops to a speed less than the speed of rotation of said liquid annulus.
  • a dishwashing machine comprising a tub, an article receiving rack mounted in the tub, an
  • a dishwashing machine comprising a tub, an article receiving rack mounted in the tub, an upwardly open liquid receiving receptacle mounted in the tub, below said rack, drive means for rotating said receptacle about an upright axis at a speed sufficient to create a rotating annulus of liquid against the interior wall of the receptacle, including drive mechanism for the receptacle being connected to and totally supported from the underside of the tub and is operably connected to said receptacle for rotating it, a plurality of scoops mounted for rotation about said axis, and having inlet portions positioned in the path of travel of the liquid annulus to pick up liquid therefrom and outlets for discharging the picked-up liquid in the form of a spray, an upwardly direction against and around articles on said rack, said scoops being mounted for free rotation about said axis so as to be rotated by the movement of and in the same direction as said liquid annulus, and means for retarding the rotation of said scoops to a speed less than the speed of rotation of said liquid annulus.
  • a dishwashing machine comprising a tub, an article receiving rack mounted in the tub, an upwardly open liquid receiving receptacle mounted in the tub, below said rack, drive means for rotating said receptacle about an upright axis at a speed sulficient to create a rotating annulus of liquid against the interior wall of the receptacle, including drive mechanism for the receptacle being connected to and totally supported from the underside of the tub and is operably connected to said receptacle for rotating it, resilient means for supporting said drive mechanism from the tub, a plurality of scoops mounted for :rotation about said axis, and having inlet portions positioned in the path of travel of the liquid annulus to pick up liquid therefrom and outlets for discharging the picked-up liquid in the form of a spray, in an upwardly direction against and around articles on said rack, said scoops being mounted for free rotation about said axis so as to be rotated by the movement of and in the same direction as said liquid annulus, and
  • a dishwashing machine comprising a tub, an article receiving rack mounted in the tub, an upwardly open liquid receiving receptacle mounted in the tub, below said rack, drive means for rotating said receptacleabout an uprightaxis-at a speed sufiicient to create a rotating annulus of-liquid against the interior wall of the receptacle, the bottomof t e r cep acle, adjacent the area f formation of said liquid annulus, being formed with one or more drainage outlet, through which said liquid discharges by gravity upon cessation of rotation of the receptacle, a water deflector shield, of annular form, seated in th tub above said receptacle and having a downwardly inclined p rtion x n in inw ly of th upp margina1 edge of said receptacle, a plurality of scoops mounted for rotation about said axis, and having inlet portions positioned in the path of travel of the liquid annulus to pick up liquid therefrom and outlets for
  • a dishwashing machine comprising .a tub, an article receiving rack mounted in the tub, a tubular drive shaft, an upwardly open liquid receiving receptacle mounted on said shaft, within said tub and below said rack, drive means for rotating said shaft and receptacle about an upright axis at a speed sufiicient to create a rotating annulus of liquid against the interior wall :of the.
  • said scoops and spider being mounted forfree rotation about said axis by the movement of and in the same direction as said liquid annulus
  • said retarding means comprising a brake mounted on the lower end of said upright shaft.
  • a dishwashing machine comprising a tub
  • an article receiving rack mounted in the tub, a ;tubular drive shaft, an upwardly open liquid receiving receptacle mounted on said shaft, Within said tub and below said rack, drive means for rotating said shaft and receptacle about an upright axis at a speed sui'lieient to create a rotating annulus of liquid against the interior wall of the receptacle, an uprightshaft journaled in i the tubular drive shaft, a spider mounted on the upper end of said upright shaft and having a plurality of radially projecting arms, a plurality of scoops-mounted on said arms and having inlet portions positioned in the path of travel of q the liquid annulus to pickup liquid therefrom and outlets for discharging the picked-up liquid in the form of a spray, in an upwardly direction against and around articles on the rack, said scoops and spider being mounted for free rota-- tion about said axis by the movement of and in the same direction as said liquid annulus, means for retarding the rotation of said spider and scoops to a speed less than
  • a dishwashing machine comprising a tub
  • tubular drive shaft an upwardly open liquid receiving receptacle mounted on said shaft, with in said tub and below said rack, drive means for rotating said shaft and receptacle about an upright axis at a speed sufficient to create a rotating annulus of liquid against the interior wall of the receptacle, an upright shaft journaled in the tubular drive shaft, a spider mounted on the upper end of said upright shaft and having a plurality of radially projecting arms, a plurality of scoops mounted on said arms and having inlet portions positioned in the path of travel of the liquid annulus to pick up liquid therefrom and outlets for discharging the picked-up liquid in the form of a spray, in an upwardly direction against and around articles on the rack, said scoops and spider being mounted for free rotation about said axis by the movement of and in the same direction as said liquid annulus, means for retarding the rotation of said spider and scoops to a speed less than the speed of rotation of said liquid annulus, said retarding means comprising a brake mounted on the lower end of said upright shaft
  • a dishwashing machine comprising a tub, an article receiving rack mounted in the tub, a tubular drive shaft, an upwardly open liquid receiving receptacle mounted on said shaft, within said tub and below said rack, drive means for rotating said shaft and receptacle about an upright axis at a speed sufiicient to create a rotating annulus of liquid against the interior wall of the receptacle, an upright shaft journaled in the tubular drive shaft, a spider mounted on the upper end of said upright shaft and having a plurality of radially projecting arms, a plurality of scoops mounted on said arms and having inlet portions positioned in the path of travel of the liquid annulus to pick up liquid therefrom and outlets for discharging the picked-up liquid in the form of a spray, in an upwardly direction against and around articles on the rack, said scoops and spider being mounted for freerotation about said axis by the movement of and in the same direction as said liquid annulus, means for retarding the rotation of said spider and scoops to a speed lessthan the
  • a dishwashing machine comprising a tub, an article receiving rack mounted in the tub, a tubular drive shaft, an upwardly open liquid receiving receptacle mounted on said shaft, within said tub and below said rack, drive means for rotating said shaft and receptacle about an upright axis at a speed sufiicient to create a rotating annulus of liquid against the interior wall of the receptacle, an upright shaft journaled in the tubular drive shaft, a spider mounted on the upper end of said upright shaft and having a plurality of radially projecting arms, a plurality of scoops mounted on said arms and having inlet portions positioned in the path of travel of the liquid annulus to pick up liquid therefrom and outlets for discharging the picked-up liquid in the form of a spray, in an upwardly direction against and around articles on the rack, said scoops and spider being mounted for free rotation about said axis by the movement of and in the same direction as said liquid annulus, means for retarding the rotation of said spider and scoops to a speed less than the speed
  • a dishwashing machine comprising a tub, an article receiving rack mounted in the tub, a tubular drive shaft, an upwardly open liquid receiving receptacle mounted on said shaft, within said tub and below said rack, drive means for rotating said shaft and receptacle about an upright axis at a speed sufiicient to create a rotating annulus of liquid against the interior wall of the receptacle, an upright shaft journaled in the tubular drive shaft, a spider mounted on the upper end of said upright shaft and having a plurality of radially projecting arms, a plurality of scoops mounted on said arms and having inlet portions positioned in the path of travel of the liquid annulus to pick up liquid therefrom :and outlets for discharging the picked-up liquid in the form of a spray, in an upwardly direction against and around articles on the rack, said scoops and spider being mounted for free rotation about said axis by the movement of and in the same direction as said liquid annulus, means for retarding the rotation of said spider and scoops to a speed less than
  • a mechanism according to claim 13 characterized by a pin loosely fittedinto aligned openings in said shoes, and a coil spring surrounding said pin with its opposite ends reacting on said shoes to urge them apart with the lining members engaging said drum surface.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Washing And Drying Of Tableware (AREA)
US224478A 1951-05-04 1951-05-04 Dishwashing machine Expired - Lifetime US2641268A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE505311D BE505311A (en(2012)) 1951-05-04
US224478A US2641268A (en) 1951-05-04 1951-05-04 Dishwashing machine
GB17155/51A GB687824A (en) 1951-05-04 1951-07-19 Improvements in or relating to dishwashing machines
FR1051198D FR1051198A (fr) 1951-05-04 1951-08-02 Perfectionnements à une machine à laver la vaisselle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US224478A US2641268A (en) 1951-05-04 1951-05-04 Dishwashing machine

Publications (1)

Publication Number Publication Date
US2641268A true US2641268A (en) 1953-06-09

Family

ID=22840875

Family Applications (1)

Application Number Title Priority Date Filing Date
US224478A Expired - Lifetime US2641268A (en) 1951-05-04 1951-05-04 Dishwashing machine

Country Status (4)

Country Link
US (1) US2641268A (en(2012))
BE (1) BE505311A (en(2012))
FR (1) FR1051198A (en(2012))
GB (1) GB687824A (en(2012))

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905663A (en) * 1974-05-08 1975-09-16 Maytag Co Convertible dishwasher
US4815487A (en) * 1987-02-02 1989-03-28 Industrie Zanussi S.P.A. Wash tub for a dishwasher
CN110403556A (zh) * 2018-04-27 2019-11-05 刘鹏飞 一种旋转引流组件及洗涤装置
CN111820844A (zh) * 2019-04-19 2020-10-27 青岛海尔洗碗机有限公司 一种洗碗机奶嘴支架及应用其的洗碗机
US11172804B2 (en) * 2019-07-16 2021-11-16 WU IL Kim Dish washer and washing method using the same

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7754025B1 (en) 2000-06-08 2010-07-13 Beverage Works, Inc. Dishwasher having a door supply housing which holds dish washing supply for multiple wash cycles
US7083071B1 (en) 2000-06-08 2006-08-01 Beverage Works, Inc. Drink supply canister for beverage dispensing apparatus
US6799085B1 (en) 2000-06-08 2004-09-28 Beverage Works, Inc. Appliance supply distribution, dispensing and use system method
US8834648B2 (en) 2010-10-21 2014-09-16 Whirlpool Corporation Dishwasher with controlled rotation of lower spray arm

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US516605A (en) * 1894-03-13 Dish-cleaner
GB189914996A (en) * 1899-07-20 1899-08-26 William Phillips Thompson Improvements in Friction Clutches.
US1632007A (en) * 1922-11-08 1927-06-14 Cascade Mfg Company Dishwashing machine
US1892816A (en) * 1931-02-21 1933-01-03 Bert C Thornburgh Brake lining anchorage and article
US2571438A (en) * 1944-06-14 1951-10-16 Thor Corp Convertible dishwashing and clothes-washing machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US516605A (en) * 1894-03-13 Dish-cleaner
GB189914996A (en) * 1899-07-20 1899-08-26 William Phillips Thompson Improvements in Friction Clutches.
US1632007A (en) * 1922-11-08 1927-06-14 Cascade Mfg Company Dishwashing machine
US1892816A (en) * 1931-02-21 1933-01-03 Bert C Thornburgh Brake lining anchorage and article
US2571438A (en) * 1944-06-14 1951-10-16 Thor Corp Convertible dishwashing and clothes-washing machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905663A (en) * 1974-05-08 1975-09-16 Maytag Co Convertible dishwasher
US4815487A (en) * 1987-02-02 1989-03-28 Industrie Zanussi S.P.A. Wash tub for a dishwasher
CN110403556A (zh) * 2018-04-27 2019-11-05 刘鹏飞 一种旋转引流组件及洗涤装置
CN111820844A (zh) * 2019-04-19 2020-10-27 青岛海尔洗碗机有限公司 一种洗碗机奶嘴支架及应用其的洗碗机
US11172804B2 (en) * 2019-07-16 2021-11-16 WU IL Kim Dish washer and washing method using the same

Also Published As

Publication number Publication date
BE505311A (en(2012))
FR1051198A (fr) 1954-01-13
GB687824A (en) 1953-02-18

Similar Documents

Publication Publication Date Title
US3385085A (en) Laundry equipment
US3060946A (en) Dishwashing machine
US2278911A (en) Washing apparatus
US3064664A (en) Dishwashing machine
US2734520A (en) Dishwashing machine
US3270529A (en) Laundry equipment
US3709236A (en) Dishwasher
US2987260A (en) Top spray dishwasher
US2372769A (en) Washing machine
US2726666A (en) Dishwasher
US2287628A (en) Washing apparatus
US2641268A (en) Dishwashing machine
US1927665A (en) Dishwashing machine
US2862510A (en) Dishwasher
US2552852A (en) Dishwashing apparatus having detergent dispensing means
US3067759A (en) Dishwashing apparatus
US3310243A (en) Dishwashing machine
US1804715A (en) Combination sink and convertible dishwasher
US2275189A (en) Dishwashing machine
US2751917A (en) Dishwashing machine
US2296267A (en) Laundry apparatus
US1672286A (en) Method of and apparatus for dishwashing
US2571438A (en) Convertible dishwashing and clothes-washing machine
US2351342A (en) Dishwasher
US1707159A (en) Tumbler-washing machine