US2610499A - Jet circulation washing machine - Google Patents

Description

P 1952 T. F. RUSSELL 2,610,499

JET CIRCULATION WASHING MACHINE Filed March 1, 1947 2 SI-IEETS--ShEET 1 Inventor- Thomas ERussell m Attorney P 1952 T. F. RUSSELL 2,610,499

' JET CIRCULATION WASHING MACHINE Filed March 1, 1947 2'SHEETS-Si-IEET 2 Inventor 7 Thomas F. Russell By iMz/ yw Attorney Patented Sept. 16, 1952 UNITED STATES PATENT oFF cc i Thomas 1E. Russell, Fergus, Ontario, Canada 1 Application March 1, 1947, Serial No. 731,785

' Claims.

This invention relates to washing machines and the object of the invention is to devise a washing machine which will have a minimum of moving parts and which will wash linen quickly and effectively without tearing or damaging the material. t r The washing machine art is an old one and many washing machines perform the washing operation by means of a dolly or a reciprocating or rotating tub. In accordance with other constructions the washing operation is performed by circulating washing fluid through the clothes. The difficulty with" the latter type of washing machine has beento obtain thorough circulation and recirculation of the washing fluid through every'part oi the linen to becleaned and with this in view various arrangements have been devised and patented. v I have found that satisfactory results can be obtained'in a manner which is most simple and efiective. Briefly, according to the present invention the jet of washing fluid is injected into the tub at apoint adjacent the bottom thereof and at substantially-the geometrical centre of the bottom and a deflector plate is mounted in the tub above the point of injection of the washing fluid.

With this arrangement the articles to be cleaned circulate rapidly with the washing fluid, rising at the centre of the tub, striking the deflector plate, passing outwardly towards the side of the tub and then passing downwardly and inwardly to the bottom of the tub, from where they again are carried upwardly by the washing fluid and the process is repeated.

The invention is hereinafter more particularly described and is illustrated by way of example in the accompanying drawings in which:

' Figure 1 is a vertical section through the machine on the line l-l in Figure 2;

Figure 2 is a horizontal section'through the machine;

s Figure 3 is a perspective view of the deflector plate;

Figure 4 is a perspective view of a modified form of the deflector plate;

Figure 5 is a vertical section through the machine, showing a modified form thereof;

Figure 6 is a fragmentary section of the machine in Figure 5 showing a modified construction of deflector plate; and

Figure '7v is a fragmentary section of the machine in Figure 5 showing a still further modified construction'of deflector plate.

In the drawings corresponding numerals refer to corresponding parts in thedifferent figures Referring to Figures 1 to 3 inclusive, the tub! is cylindrical, but may be rectangular, spherical or spheroidal, and is provided with atop or cover 2 removably mounted thereon,

Located substantially at the geometric 'centre of the'bottom ofthe tub is an opening through which extends a pipe 4, the "open end'of which forms a jet or nozzle for injecting washing fluid into the tub. The end of this pipe 4 i s preferably located at or' close to the bottom of the tub, most preferably slightly above the bottom tcrprovide a space between the jet opening and the bottom of the tub. However the pipe may extendas much as half way from the bottom of the tubif sufficient washing fluid is used to provide ample space between the end of the pipeand the de: flector plate (hereafter described) to permit free circulation of the washing fluid and the linen in the tub; 'L

Surrounding the jet is a perforated screen 5 spaced above the bottom of the tub and extend ing downwardly into substantial contact at its outer edges with the bottom of the tub. Located in'the bottom of the tub adjacent to the pipeland beneath the perforated screen 5 is a drainageopening connected to a drainage pipe 6' which forms a closed circuit with the fluid injecting pipe 4. In this circuit is any suitable typeo'f liquid pump 1 preferably operated by a motor 85 1' Therefore, there is a continual recirculation. of: the washing fluid. Another drainage opening (not shown) may be provided for draining off the washing fluid after th'e'completion of the wash= ing operation.

A deflector plate 9 is provided, in practice preferably having a diameter-of substantially half the diameter of the tub and preferably havingfits undersurface or part thereof concaved. However, a deflector plate of substantially the same diameter as the inside of the tub will operate satisfactorily, provided there is sufficient space between the edge of the plate and the si'des of the tub to permit the plate to float up and-down and to relieve the pressure of steam comingoff the hot washing fluid. a

However, if the plate appreciably exceeds in diameter one-half thediameter of the-inside'of the tub the suction caused by the downward flow of washing fluids at the outside of the tub tends to suck it down below the surface of the washing fluid in the tub and to compress the linen in the tub so as to interfere with the free circulationiof the washing fluid and linen. In Figure 3 isshown tion'thereof adjacent its centre' concavei; The

plate is circular and may be formed of metal or other suitable material.

The deflector plate is adapted to rest on the surface washing fluid above the linen which is being washed, the term linen being used in a generic sense to describe clothes, curtains and other material which may be washed in a washing machine. {The flow of the washing fluid will retain the plate at orrnear thessurface. Best results are'obt'ained'bv'the use of considerably more washing fluid than is necessary to cover the linen in the tub.

It is found in practice that if "the deflector plate is merely placed on the surface of the washing fluid with its centre substantially'vertically therdrainage:outletpipe 6. The perforated screen 5 :acts as -.-"a-.-guard to prevent the drainage pipe-15 frmn-rbecomingestopped' up by :the material in the tub. The linen which is :carried downwardly -.to the :bottom of'-the :tub :bythe washing ifluid .is sucked into zthe centre and carried upwardly :by the washing :fluid which is ejected into thew-tub by :the ejector. :pipe' l.

Althou h the deflector :9 willrr'emainziniposb tionron' the surface of the-washing fillidilf properl y placed in :position without=a-ny support, :it is desirableeco provide guidewmeans to, prevent r-accidental displacement of the deflector plate, and thisaistaccomplished by :securing; a :rod -l O to :the centre of the upper :surface of the "deflector plate and extending :at ':right angles to :the horizontalgplanerof the plate. A. hollow ztube H is Secured .to the -centr'e*of the cover. :2 .:of :the stub and extendsdownwardly atright angles thereto. "The rod -I 0 and the hollow tube 'H telescope 'Sohstmprovide 'aivertieallyfloatingFmounting :for theadeflectortplata'rretaining it iniits central loeationr'above the jet but permitting :itrto move up: aindxdownr lonfzthe surface of the washing fluid so. that it "will always remain ion the :surfafceof them'ashingi fluid contained in thetub -and'"yet fitsiipositionmelative to Zthe, ;tub and xthe top may change depending upon thecquantityxof washingifluid contained'linthatub.

'i I'orget ithe .Tdesired circulatory ;action of -:the washing :fluid, it is :necessary that the deflector plate be :located on 501' ratthesurface :of Fthe washing:fluid,fbut within ::a :predetermined :low and Chigh point; which icanreadilyibe:determined in practice, 'ithe".fdeflector iplate nacts =efliciently regardless f fits. height above the bottom .ofythe tub fsoblong fas'ilt istrestin'g onithe :surface of the washing :flui'd and arranged above dzhe :injec'tor pipe with its centre locatedrsubstantiallyron the eentre line of the :inje'ctoripipe.

"In Fi'gure -'5 is shownr-ai'spheroi'dalatub, in? which the' plate 9 acts :as=a closure .forithe tab :2 I .;It is -provided with -a" "flange ELS l-which extends through the opening in the tub, -:being' :rspaced "fromftlie edges of the opening ssuiflciently to permit thel flange -l 9 to slide upzan'dzdown in the opening and to permi't the escape :of steam be- Figure "6 deflector iiilateizll iis mounted i011 bellows 12 secured to closure 24. The bellows expand to permit the plate to rest on the surface of the washing fluid depending on the liquid level. The bellows I2 are adapted to fold up within a recess formed by a flange 24 which extends down from the closure 24 spaced from flange 22 around the opening in the tub 22. The plate 29 when in its uppermost position bears against fflange'z l A tube I3 extends Lthrough flange 22 to permit escape of steam.

In Figure 7 the deflector plate is shown secured to flange 25 of the closure 25. In this menstruation-the;position of the plate 39 is fixed relative to the tub 23 and therefore in order that itmay operate the tubmust be filled until the surface of the washing fluid reaches the under face of the plate 39.

lt' will be seen from the above that the objects of this invention have been attained in. a very simple and veffective .manner.

it :is thought .thatatherconstruction .and use of the invention -will be apparent iromthe above description of the various ,parts andtheirpue pose. It to be understood :that :the "form :of my invention herewith shown and described,.is to lee-taken as a preferredexample ofthe same, and that ,Various changes in .the shapawsize and arrangementof parts may be resortedto, without departing. from v the spirit -of. my invention, .or .the scope of the.subjoined claims.

What I claim as :my -,invention:is:

.1. :.A machine for Washing linen.comprisingan imperforate :tub for holding ,linen and washing fluid, :said tub having a hottomand walls a filling .openingsfor. inserting linen,.:a: drainage open-. ing, ajet opening vertically-into :the tub;at zsubstantially the geometrical centre :1ine-;and ,.di-- rected along theeentre line .to inject .washing fluid jinto zthe .tub,- 5a rdeflectonplate spaced from the jet, with .its centre'rlocatedesubstantially 1 on the :centreline ;of the tub-,;; uide-.means :for floatably. letaihing the deflection'plate ,in position above, the jet; :the' interior ,-,.of thetub -.-b ein-g unobstructed vto pro vide,. a --clear passageway :for fluidfrom the .jet;;to :the deflector platathe .diameter of the jet opening being not more than halfthe diameterpf the tub and the {space thetween the j etqandr the walls of the tub being -;also unobstructed whereby when the tub is;fi1led :Wifih fluid between the :jet; and ;the ;,defle.ctor plate :the

fluid entering .the tubythrough githe Jet :will:;induce .-a circulating, movement .Of :the fluid :along said centre line :to the; deflector :plate and moutwardly to the walls of-.:thetubj-andqbackwarmy and ;;-inward1y -..to the 51617, J-carryine' :with iitiany linen which 1111315 been placed in rthe tub, :and means foncirculatin .thefluidiromthe:drainage opening to the jet :and .sinj eating it :intozthefitub through the jet under pressure.

p .2. A ma0hinezfor washingllinen comprisingan imperforate tub for holding linen andzwa'shing fluid,,=;said;tubi:having .a bottom-and zsidenwalls, a. filling opening in the top thereof for inserting linen, :a drainage; opening adjacent :the .hottom thereof, a jet opening verticallyjntozthe .tub 1adjacentthe bottom :thereof .;:at ,isubstantially vAthe centre line toiniect-;.washing :fluid upwardlyzinto the tub,;a deflector plate having. at least-mart .of its under: surface concaved and spaced above ;the jet with its centre linelocated substantiallyaon the :vertical centre line --:of :the :tub, guide :means iorfioatably retaining the deflector :plate in .po-' sition above the jet, :-t'he interiorgofdsheitub'being unobstructed 1110 :;.provide a :clear passageway ior fluidefrom the jet rto rtheuieflectorl'plate. v:the -'di 5 ameter of the jet opening being not "more than half the diameter of the tub and the space between the jet and the walls of the tub being also unobstructed whereby when the tub is filled with fluid between the jet and the deflector plate the fluid entering the tub through the jet-will induce a circulating movement of the fluid along said centre line to the deflector plate and outwardly to the walls of the tub and baclzwardly and inwardly to the jet, carrying with it any linen which has been placed in the tub, and means for circulating the fluid from the drainage opening to the jet and injecting it into the tub through the jet under pressure.

3. A machine for washing linen as claimed in claim 2, including a closure for the filling opening, said. guide means including a depending member on the closure and an upstanding member on the plate telescoping with the depending member. I

4. A machine for Washing linen as claimed in claim 2, including a closure for the filling opening, said guide means including a bellows secured to the closure and the plate.

5. A machine for washing linen as claimed in 6 claim 2, including a perforated screen extending around the jet over the drainage opening and above the bottom of the tub, said jet extending through said screen so that there may be substantially unimpeded injection of washing fluid.

THOMAS F. RUSSELL.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number

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