US2770122A - Washing machines - Google Patents

Washing machines Download PDF

Info

Publication number
US2770122A
US2770122A US467545A US46754554A US2770122A US 2770122 A US2770122 A US 2770122A US 467545 A US467545 A US 467545A US 46754554 A US46754554 A US 46754554A US 2770122 A US2770122 A US 2770122A
Authority
US
United States
Prior art keywords
pulsator
wash tub
shaft
plane
rim
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
US467545A
Other languages
English (en)
Inventor
Jackson Kenneth
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.)
FISHER OLDHAM Ltd H
H FISHER (OLDHAM) Ltd
Original Assignee
FISHER OLDHAM Ltd H
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
Application filed by FISHER OLDHAM Ltd H filed Critical FISHER OLDHAM Ltd H
Application granted granted Critical
Publication of US2770122A publication Critical patent/US2770122A/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
    • A47L15/02—Washing or rinsing machines for crockery or tableware with circulation and agitation of the cleaning liquid in the cleaning chamber containing a stationary basket
    • A47L15/06—Washing or rinsing machines for crockery or tableware with circulation and agitation of the cleaning liquid in the cleaning chamber containing a stationary basket by means of an impeller in the chamber
    • 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
    • D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
    • D06F17/06—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid by rotary impellers
    • D06F17/10—Impellers

Definitions

  • This invention relates to the type of machine for washing clothes, dishes or other articles, more especially for washing clothes and other woven .or knitted articles, a
  • a container hereinafter termed a wash tub
  • a pulsator mounted for rotation about a substantially vertical axis by an externally disposed electric motor.
  • the invention is directed to providing primarily an improved construction of pulsator by which better circulation of the washing medium is attained, and secondly an improved form of wash tub which prevents the articles being washed adhering to its walls and brings about movement of said articles within the wash tub adequate to ensure their repeated penetration by the agitated washing medium.
  • the pulsator is constructed as an imperforate circular member with substantially more than half ofits upper working surface raised above the plane of its rim and divided by a transverse ridge into two portions, preferably of unequal areas, so that the leading portion considered with respect to the direction of rotation of the pulsator increases progressively in height up to said ridge, while the trailing portion progressively decreases in height, the remaining or third portion of the working face being a flat bottomed depression or hollow below the plane of the rim, and all said portions merging smoothly without sharp abutments such as would prevent the articles undergoing treatment from passing over the face of the rotating pulsator either radially or tangentially.
  • each portion of the raised part of. the pulsator presents an inner plane surface which is fiat radiallyand an integral outer or marginal surface which is also plane but inclined.
  • the pulsator is mounted with-small peripheral clearance in a sump at the bottom of the wash tub, so that the circular rim or periphery of the pulsator is about level with the top of the sump.
  • the lower or under face of the pulsator is preferably similar in form to the upper working surface, which has the attribute of evacuating the washing medium from the sump by centrifuging it and maintaining also slight atmospheric pressure around the peripheral clearance of the sump.
  • the wash Figure 1 of the drawings is an elevation, partly in section, of the machine.
  • Figures 2 to 7 show the construction of the pulsator, Figure 2 being a plan, Figure 3 a side view, and Figures 4 to 7 sections respectively on the lines IVIV, V -V, VI-VI and VIIVII of Figure 2.
  • Figures 8 and 9 show the wash tub and the pulsator assembly, Figure 8 being a sectional elevation, and Figure 9 being a plan but also showing the outer casing or sheathing of the machine.
  • '1 denotes the casing just mentioned, which has a cross member 2 dividing its interior-into an upper compartment housing a wash tub 3, and a lower compartment housing operating mechanism hereinafter described.
  • the casing 1 is supported on castors 4-whereby it can be easily moved about, and is also furnished with a top 5 which embraces the rim of the wash tub 3.
  • the bottom of the wash tub 3 has a central sump or dish 6, circular in plan, which seats on the cross member 2, and which affords a bearing 7 for the upper end of a vertical shaft 8 fixed to a pulsator 9 the rim of which is about level with the top of the sump.
  • a differential belt pulley Keyed on the agitator shaft 8 below the sump 6 there is a differential belt pulley, the larger step of whichis connected by a belt 11 witha smaller pulley 12 on the shaft of a driving motor 13.
  • the smaller step of the differential belt pulley is connected, by another belt 14 and another pulley 15, and through speed reduction gearing housed in a gear box 16 and a coupling 17 with a poWer'take-off shaft 18 that extends vertically upwards outside the tub 3.
  • a drain tube 23 extends from the sump 6 to a pump 24 having an outlet tube 25.
  • the pump is operated by a handle 26.
  • the drive to the pulsator shaft 8 includes clutch mechanism which is manually controlled by a knob 27 and a Bo,wden cable' 28 in order that the power take-off shaft 18 may be driven from the motor without the pulsator being driven.
  • the pulsator- is constructed as animperforate circular member with substan't'ially more than half of its upper working surface convexedly raised above the plane of its rim and divided by a transverse ridge, marked X in Figure 2, into two portions 9a, 9b of unequal areas, so that the greater or leading portion 9a considered with respect tothe direction of rotation of the pulsator increases progressively in height up to said ridge X while theles'ser ortrailing portion progressively decreases .
  • heightjthe remaining'or third portion 9c of the working faceof the pulsator is a flat bottomed depression or hollow below tub is of special cross-sectional form, namely with two opposed walls each enclosing an angle of about 135 with an adjacent wall.
  • washthe plane of the agitator rim By way of example one constructional form of washthe plane of the agitator rim; and allrthe portions 90, 9b, 9c merge smoothly into one another and into the rim without sharp abutments such as would prevent articles undergoing treatment in the machinefrom passing over the rotating pulsator either radially or tangen tially.
  • the two portions 9d,"9b of the raised part ofthe pulsator each presents an inner plane surface which is flat radially and an integral outefo'r -marginalsurface which is also plane but inclined.
  • the wash tub 3 has six upstanding walls, including a pair of opposed walls 3a and 3b each of which forms an angle of about with each of the contiguous walls.
  • a suitable speed of rotation of the pulsator is 2115- proximately 700to 800revolutions per minute; and of the take-off shaft' l8 about 48 to 50 revolutions per minute.
  • the pulsator 9 by virtue of its cross-section and skin friction rotates the water mass in the wash tub 3 horizontally, and also with increase of speed imparts a centrifugal action to it; the water taking the place of that rotated and centrifuged imparts an additional vertical rotation within the water mass.
  • the angular walls of the wash tub are calculated to break up the horizontal and vertical rotations referred to and resolve them into cyclic surges which gives a vigorous movement to the articles being washed, and also alters their disposition within the mass so that a different side, portion or facet is continuously presented to the working face of the pulsator.
  • the articles are drawn into the Washing medium and presented to the pulsator and then repulsed by it, they are also subject to vertical pulsations of relatively high frequency caused by the specially shaped depression 90 in the pulsator face. These pulsations have the effect of considerably speeding the removal of the dirt from the articles being washed, the said dirt already having been loosened by the cyclic surges and rotation already mentioned.
  • the invention has the property of reducing washing time with increased efiiciency as the articles are in constant movement in the mass of water.
  • the power take-off shaft 18 supplies the motive force for a wringer, rotary ironer, drier or the like, thus making the machine capable of completing either the whole washing operation or of performing other functions in the home with the aid of a detachable table top (not shown) but capable of covering the wash tub 3 while leaving access to the shaft 18.
  • the sump 6 may be set off centre in the base of the tub 3 in order to enable a different load characteristic to be obtained.
  • the bottom of the wash tub may be raised or depressed if desired.
  • a washing machine comprising a wash tub; a shaft rotatably mounted in the bottom of the'wash tub; a pulsathe remaining portion of said working face being a flat bottomed depression below the plane of the rim, and all said portions merging smoothly without sharp abutments.
  • a washing machine comprising a wash tub; a shaft rotatably mounted in the bottom of the Wash tub; a pulsator within the wash tub carried by the shaft; and means including an electric motor outside the wash tub for driving the shaft; said pulsator formed as a circular member with more than half of its upper Working surface raised above the plane of its rim and divided by a transverse ridge into two portions whereof the leading portion considered with respect to the direction of rotation of the pulsator increases progressively in height up to said ridge and the trailing portion progressively decreases in height, the remaining portion of said working face being a flat bottomed depression below the plane of the rim, all said portions merging smoothly without sharp abutments, and said leading and trailing portions presenting radially flat surfaces and integral marginal plane surfaces inclined thereto.
  • a washing machine comprising a wash tub of a cross sectional form presenting two opposed walls each enclosing an angle greater than 90 with an adjacent wall, a vertical shaft rotatably mounted in the bottom of the wash tub; a pulsator within the wash tub carried by the shaft; and means including an electric motor outside the wash tub for driving the shaft, said pulsator formed as a circular member with more than half of its upper working surface raised above the plane of its rim and divided by a transverse ridge into two portions whereof the leading portion considered with respect to the direction of rotation of the pulsator increases progressively in height up to said ridge and the trailing portion progressively decreases in height, the remaining portion of said working face being a fiat bottomed depression below the plane of the rim, and all said portions merging smoothly without sharp abutments.
  • a washing machine comprising a wash tub of a cross sectional form presenting two opposed walls each enclosing an angle greater than 90 with an adjacent wall, a substantially vertical shaft rotatably mounted in the bottom of the wash tub; a pulsator within the wash tub carried by the shaft; and means'including an electric motor outside the wash tub for driving the shaft, said pulsator formed as a circular member with more than half of its upper working surface raised above the plane of its rim and divided by a transverse ridge into two portions whereof the leading portion considered with respect to the direction of rotation of the pulsator increases progressively in height up to said ridge and the trailing portion progressively decreases in height, the remaining portion of said working face being a flat bottomed depression below the plane of the rim, all said portions merging smoothly without sharp abutments, and said leading and trailing portions presenting radially flat surfaces and integral marginal plane surfaces inclined thereto. 7
  • a washing machine comprising a wash tub with six upstanding walls including two opposed walls each enclosingangles of approximately 135 with the remaining walls disposed at 90 to one another, a shaft rotatably mounted in the bottom of the wash tub; a pulsator within the wash tub carried by the shaft; and means tor within the wash tub carried by the shaft; and means including an electric motor outside the wash tub for driv-fr ing the shaft; said pulsator formed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
US467545A 1953-11-23 1954-11-08 Washing machines Expired - Lifetime US2770122A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32495/53A GB743049A (en) 1953-11-23 1953-11-23 Improvements in and relating to washing machines

Publications (1)

Publication Number Publication Date
US2770122A true US2770122A (en) 1956-11-13

Family

ID=10339475

Family Applications (1)

Application Number Title Priority Date Filing Date
US467545A Expired - Lifetime US2770122A (en) 1953-11-23 1954-11-08 Washing machines

Country Status (5)

Country Link
US (1) US2770122A (enMihai)
BE (1) BE533444A (enMihai)
FR (1) FR1111991A (enMihai)
GB (1) GB743049A (enMihai)
LU (1) LU33194A1 (enMihai)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961863A (en) * 1957-01-14 1960-11-29 Whirlpool Co Laundry machine, suds overflow control
US3025690A (en) * 1956-05-05 1962-03-20 Lathuy Eugene Pierre Devices for agitating and ejecting liquids and the like
US4594863A (en) * 1982-12-29 1986-06-17 Tokyo Shibaura Denki Kabushiki Kaisha Washing machine
CN112430969A (zh) * 2020-11-20 2021-03-02 珠海格力电器股份有限公司 一种波轮

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1119216B (de) * 1956-05-05 1961-12-14 Eugene Pierre Lathuy Ruehrscheibe fuer Waschmaschinen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE511137A (enMihai) *
US2052392A (en) * 1932-05-27 1936-08-25 Apex Electrical Mfg Co Laundry machine
DE855092C (de) * 1951-04-13 1952-11-10 Paul Dominjon Maschine zum Waschen, Emulgieren od. dgl.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE511137A (enMihai) *
US2052392A (en) * 1932-05-27 1936-08-25 Apex Electrical Mfg Co Laundry machine
DE855092C (de) * 1951-04-13 1952-11-10 Paul Dominjon Maschine zum Waschen, Emulgieren od. dgl.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025690A (en) * 1956-05-05 1962-03-20 Lathuy Eugene Pierre Devices for agitating and ejecting liquids and the like
US2961863A (en) * 1957-01-14 1960-11-29 Whirlpool Co Laundry machine, suds overflow control
US4594863A (en) * 1982-12-29 1986-06-17 Tokyo Shibaura Denki Kabushiki Kaisha Washing machine
CN112430969A (zh) * 2020-11-20 2021-03-02 珠海格力电器股份有限公司 一种波轮

Also Published As

Publication number Publication date
FR1111991A (fr) 1956-03-07
GB743049A (en) 1956-01-04
LU33194A1 (enMihai)
BE533444A (enMihai)

Similar Documents

Publication Publication Date Title
US2575691A (en) Clothes-washing machine
US2296257A (en) Apparatus for washing fabrics or the like
US9115452B2 (en) Laundry treating appliance impeller
US2478188A (en) Method of and apparatus for washing fabrics
CN101994223B (zh) 洗衣机
US20190093272A1 (en) Laundry treating appliance laundry mover with liquid diverter
US4193275A (en) Agitator mechanism for clothes washing machine
US2105218A (en) Laundry machine
US4054412A (en) Clothes washing machine and method of washing clothes
KR102295607B1 (ko) 세탁기 및 이에 구비되는 세탁조의 제조방법
US2770122A (en) Washing machines
US8429939B2 (en) Static basket washing machine
US2902852A (en) Clothes washing machines
US2720771A (en) Liquid circulating means for washing machines and the like
US2516327A (en) Method of laundering
US3987508A (en) Method of washing clothes
US2757065A (en) Method of washing clothes
US2983130A (en) Clothes washing machine having drain pump system
CA1045401A (en) Combined oscillating and unidirectional agitator for automatic washer
US3333444A (en) Washing machine
US2299495A (en) Dual agency washer
US2660045A (en) Washing machine
US1866779A (en) Washing machine
US2574985A (en) Clothes-washing machine utilizing a tumbling drum
US1411286A (en) Method of washing