US2723550A - Washing machines - Google Patents

Washing machines Download PDF

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Publication number
US2723550A
US2723550A US325683A US32568352A US2723550A US 2723550 A US2723550 A US 2723550A US 325683 A US325683 A US 325683A US 32568352 A US32568352 A US 32568352A US 2723550 A US2723550 A US 2723550A
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US
United States
Prior art keywords
water
tub
washing
nozzles
tube
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
US325683A
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English (en)
Inventor
Belaieff James Frank
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.)
Gallay SA
Original Assignee
Gallay SA
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 Gallay SA filed Critical Gallay SA
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Publication of US2723550A publication Critical patent/US2723550A/en
Anticipated expiration legal-status Critical
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Classifications

    • 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 
    • D06F39/08—Liquid supply or discharge arrangements

Definitions

  • the present invention concerns a washing machine with a xed tub having vertical side walls between which extends at least one third wall forming the bottom of the said tub.
  • a water circulating pump which at normal rates gives a head of at least 1.75 kg. per sq. cm.
  • a removable grid is arranged in the bottom wall, upstream from the pump intake, so that it is swept by the stream of water discharged by the said nozzle or nozzles, and the pump intake is readily accessible from inside the tub, once the grid is removed, so as to allow it to be cleaned.
  • Fig. l is a sectional elevation of Vone ⁇ embodiment of the machine.
  • Fig. 2 is an elevation of the same machine showing a partial section through 2-2 in Fig. 1.
  • Fig. 3 is a partly sectional elevation, similar to that shown in Fig. 1 of another embodiment.
  • the washing machine shown in Figs. l and ⁇ 2 hask a fixed tub 1 arranged inside a casing 2 resting on a base 3, of rectangular shape.
  • This tub 1 has four vertical and parallel walls 4, 5, 7, 8, between which extends la third wall forming the bottom 6 -of the tub.
  • the sides 7, 8 are joined to the bottom 6 by curved part 9.
  • the walls i and 5 are joined to the said bottom by curved parts 10.
  • a circulating pump 11 is arranged inside the casing 2 below the tub 1, this pump being designed to give, at normal rates, a head of vat least 1.75 kg. per sq. cm. and a delivery between l and 1.5 times fhe volume of water normally contained in the tub per minute.
  • 12 indicates the level of the water in the tub during the washing operation.
  • the intake of the pump is shown at 13 and is, as may be seen in the drawing, immediately adjacent to the bottom 6 of the tub.
  • the central part of the bottom of the tub is provided with a removable grid 14 arranged so that it forms part of the said bottom. Below the grid is situated a small chamber 15 in which there is mounted an electric heating element 16.
  • the bottom of the chamber 15 opens directly into the intake 13 of the pump.
  • This pump is of the centrifugal type and runs at relatively high speed. lt is a well known fact that, when pumps of this type are used to circulate the water in washing machines, textile iibres and other impurities tend to catch in the intake 13 and to gradually obstruct it.
  • the intake 13 is readily accessible for cleaning purposes.
  • the intake 13 may easily be cleaned when necessary.
  • Nozzles 17 and 18 are arranged with their discharge ⁇ openings beneath the normal level of the water in the tub and with their axes parallel to the walls 4 and 5 and adjacent to the side 7 of the tub. These nozzles discharge the water, which comes from the pump through the tube 19, vertically downwards, so that the stream of water runs first along the side 7, then along the bottom 6 and then along the side 8.
  • the upper end of the tub hasy an opening 20 which may be'closed by a lid 21 during the washing operation.
  • This lid is articulated at 22.
  • Pipe 23 serves to lill the tub with water to the level 12. This pipe is connected to a hot water supply, which is not shown, and is removed once the tub has been lilled.
  • the 24 indicates a pipe connected to the output of the pump 11 and branches off at 25.
  • One of the branches, 26, is led out of the machine and discharges at 27 into a sink 2,8 situated at a certain height above the level 12.
  • the other branch is constituted by the tube 19.
  • the machine comprises means which allows the flow of water through the tubes 19 and 26 to be controlled and which thus enables the working of the machine to be regulated.
  • This means comprises two cams 29, 30 keyed to a common shaft 31, which can be actuated by the operator by means of a lever 32. The rst of these cams controls the ow through the tube 19 and the second controls the ow through the tube 26.
  • the cam 29 When the lever 32 is in the position indicated by 32 in Fig. '2, the cam 29 completely constricts the tube 19 and therefore cuts ot the flow of water to the nozzles.
  • the cam 30 also interrupts the passage through the tube 26.
  • the cam 29 gradually closes ',the'passage through the tube 19, and the consequence of this is an increasing pressure drop in the tube 19 and a corresponding diminution of the speed of the stream of Water issuing from the nozzles, this speed diminishing to zero for the position 32 of the lever.
  • the cam 30 closes the evacuating tube.
  • Supposing the lever 32 is in the position shown in the drawing and corresponding to the washing operation.
  • the water discharged by the pump through the pipe 24 ows through the tube 19 to the nozzles, the position of the cam 29 being such that the water can iiow freely through the said tube 19.
  • the position 32 of the lever corresponds to the maximum discharge through the nozzles and to the maximum speed of the stream issuing from these nozzles. If the lever 32 is gradually moved from the position indicated above towards the position 32', the cam 29 gradually closes the passage through the tube 19, thus producing an increasing pressure drop and a corresponding diminution in the speed of the stream issuing from the nozzles.
  • the lever 32 being set in the desired position, and the tub being filled with water into which the washing has been put, it will be seen that the mass of water and washing will acquire a rotary motion in a vertical plane parallel to the walls 4 and 5 of the tub, that is, in the plane of the figure.
  • This rotary motion is due to the combined actions of the dynamic effect of the stream of water discharged at relatively high speed by the nozzles and of the suction produced in the neighborhood of the latter, which act in the fashion of an ejector on the surrounding mass of water.
  • This ejector action has the effect of drawing the water in the upper part of the tub down towards the nozzles, whereas the stream of water issuing from the nozzles tends to drive the water below the nozzles downwards towards the bottom of the tub.
  • the stream of water issuing from the nozzles and sweeping across the grid 14 prevents the wash from remaining stuck to this grid owing to the suction of the pump.
  • the lever 32 instead of being set in the position shown in the drawing, may be given a position which is intermediate between the positions 32 and 32"', on condition that the discharge end 27 of the evacuating tube is placed as shown at 27', that is,
  • the tub is provided with an overflow opening 33 situated above the level 12.
  • This opening communicates with an overflow duct 34 leading to the low pressure chamber 35 of an ejector inserted in the evacuating duct 26.
  • the nozzle 36 of the ejector When the water coming from the pump flows through the nozzle 36 of the ejector, it produces a certain suction in the chamber 35.
  • the purpose of this arrangement is to produce, by means of the suction in the chamber 35, an energetic evacuating effect whenever the level of the water in the tub reaches the opening 33.
  • the machines described above are extremely solidly built, function in an absolutely reliable manner and give a very effective washing action, without deterioration or undue wear of the goods washed, owing to the total absence of all moving mechanical parts and to the perfectly smooth inner surface of the tub. It is water alone which produces the washing effect, and that in a manner which can be controlled.
  • a housing including a side Wall, a tube in said housing, a pump provided in the housing and having an inlet in commu nication with the bottom of said tub, a coupling provided on the outlet of said pump, a pair of flexible hoses connected to said coupling, one of said hoses discharging into said tub and the other hose being adapted to discharge selectively into the tub and into a drain, intermediate portions of said hoses being juxtaposed and disposed in contact with the surface of a xed part of the machine, a shaft rotatably mounted in and extending through said side Wall, a control lever provided on said shaft exteriorly of the side wall, and a pair of cams provided on said shaft interiorly of the side wall, said cams being operatively engageable with the juxtaposed portions of the respective hoses for pressing the same against the surface of said fixed part to restrict the flow of liquid therethrough, said cams having hose engaging portions offset circumferentially relative to each other on said shaft, where

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
US325683A 1952-11-07 1952-12-12 Washing machines Expired - Lifetime US2723550A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2723550X 1952-11-07

Publications (1)

Publication Number Publication Date
US2723550A true US2723550A (en) 1955-11-15

Family

ID=4571327

Family Applications (1)

Application Number Title Priority Date Filing Date
US325683A Expired - Lifetime US2723550A (en) 1952-11-07 1952-12-12 Washing machines

Country Status (4)

Country Link
US (1) US2723550A (fr)
BE (1) BE523828A (fr)
FR (1) FR1071909A (fr)
NL (1) NL82761C (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2894385A (en) * 1952-12-01 1959-07-14 Hoover Co Washing machines
US3085420A (en) * 1959-10-08 1963-04-16 Separator Ab Clothes washing machine
US3675448A (en) * 1970-10-26 1972-07-11 John H Smith Gravity overflow tube for automatic clothes washer
US20150128657A1 (en) * 2013-11-08 2015-05-14 Samsung Electronics Co., Ltd. Washing machine

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US111176A (en) * 1871-01-24 Improvement in scouring, washing, and wringing machines
US129961A (en) * 1872-07-30 Improvement in vacuum clothes-washers
US408690A (en) * 1889-08-13 Washing-machine
US446051A (en) * 1891-02-10 James a
US1382992A (en) * 1920-08-14 1921-06-28 Lombard White Company Washing-machine
US1564760A (en) * 1924-08-27 1925-12-08 Leon E Culver Clothes-washing machine
US1775554A (en) * 1929-01-05 1930-09-09 Multi Hydro Washing Machine Co Washing machine
US1909487A (en) * 1929-09-21 1933-05-16 Cowles Engineering Corp Apparatus for treating fabrics with a liquid
US2005015A (en) * 1934-11-28 1935-06-18 William F Traudt Apparatus for washing or treating materials
US2551379A (en) * 1947-08-25 1951-05-01 American Dishwasher Corp Dish-washing machine control unit
US2633726A (en) * 1948-01-31 1953-04-07 H J Rand Washing Machine Corp Washing machine and drier with liquid circulation

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US111176A (en) * 1871-01-24 Improvement in scouring, washing, and wringing machines
US129961A (en) * 1872-07-30 Improvement in vacuum clothes-washers
US408690A (en) * 1889-08-13 Washing-machine
US446051A (en) * 1891-02-10 James a
US1382992A (en) * 1920-08-14 1921-06-28 Lombard White Company Washing-machine
US1564760A (en) * 1924-08-27 1925-12-08 Leon E Culver Clothes-washing machine
US1775554A (en) * 1929-01-05 1930-09-09 Multi Hydro Washing Machine Co Washing machine
US1909487A (en) * 1929-09-21 1933-05-16 Cowles Engineering Corp Apparatus for treating fabrics with a liquid
US2005015A (en) * 1934-11-28 1935-06-18 William F Traudt Apparatus for washing or treating materials
US2551379A (en) * 1947-08-25 1951-05-01 American Dishwasher Corp Dish-washing machine control unit
US2633726A (en) * 1948-01-31 1953-04-07 H J Rand Washing Machine Corp Washing machine and drier with liquid circulation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2894385A (en) * 1952-12-01 1959-07-14 Hoover Co Washing machines
US3085420A (en) * 1959-10-08 1963-04-16 Separator Ab Clothes washing machine
US3675448A (en) * 1970-10-26 1972-07-11 John H Smith Gravity overflow tube for automatic clothes washer
US20150128657A1 (en) * 2013-11-08 2015-05-14 Samsung Electronics Co., Ltd. Washing machine
US9957660B2 (en) * 2013-11-08 2018-05-01 Samsung Electronics Co., Ltd. Washing machine

Also Published As

Publication number Publication date
BE523828A (fr)
FR1071909A (fr) 1954-09-07
NL82761C (fr)

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