Патент USA US2111152код для вставки
March 15, 1938. JQQNELSON ' ' 2,111,152 AGIVTATOR FOR WASHING MACHINES Filed Dec._ 25, 1955 " Wrmass I ' ATT uRnEY ' Patented Minis, 193s ' 2,111,152 ' ; UNITED STATES PATENTQFFICE AGITATOR ma?gge mos- I I ‘ Jabez Curry Nelson, Syracuse, N. Y., assignor to Syracuse, . Easy Washing Machine Corporation, N. Y., a. corporation or Delaware Application December 23, 1935, Serial No.‘ 55:31.5 (Cl. 68-13%) 4 C18. suitable source of power, not necessary to‘ be My invention vrelates to washing machines, - shown or described herein since such driving and,_n1ore,particularly, to a novel agitator or mechanism is well known in the art to which this the shaft is driven An object of my invention is to provide an invention applies. Preferably, to drive the agita-_ 5 in an oscillatory manner so as agitator for a washing machine which is adapted ' tor through an arc of 180 degrees, more or less, to cleanse the clothes thoroughly in a minimum and at. a speed of somewhere between ?fty and dolly therefor. 0 length of time. ' > . _ . . Another object of my invention is to provide an agitator for a washing machine adapted to be 10 oscillated in a washing vat, the agitator having a central portion and blades so constructed and ’ arranged as to cause a turbulence of the clothes and washing ?uid and a thorough intermingling of the clothes and washing ?uid whereby new clothes surfaces are constantly being presented to the action of the agitator. More speci?cally, my invention contemplates the provision of an agitator for a washing ma sixty oscillations per minute. . . The agitator l2 comprises a base it which is mounted close to the bottom of the Vet l l and-has m upwardly and inwardly sloping side walls It and a substantially horizontal top surface, ll so that the base is substantially in the form of a frustmm of a cone. Extending upward from the hori zontal portion ll of the base. it is a central body 15 portion It for the agitator. The central body portion 68 comprises an upwardly and outwardly ?ared surface which extends upward substan tially the height of the agitator and at its upper chine in which the central portion is rather large end, as at 19, is curved‘outward to form a sharply 2G ?ared portion 2i which merges into a top plate 22. 20 in diameter at the top and tapers downward and inward, and in which the blades are curved . I have shown the central body portion of around the surface of the central portion and are While the agitator as being substantially an inverted inclined with respect to a normal to the'central cone and I have found that the best results are axis of the agitator whereby when the agitator secured when the central body portion is Of Sllb- 25 is oscillated, a. violent turbulence of the clothes stantially that shape, it may of course, if desired, and washing ?uid occurs and the clothes are be made cylindrical or otherwise shaped to co washed thoroughly and in a minimum length or operate with blades 23. V time. The blades 23, preferably three in number, in Other objects and advantages of my invention the preferred form of the invention extend from 39 will be more apparent from the following descrip the top of the central body portion to the bottom tion when taken in connection with the accom thereof. In order to secure the desired action panying drawing, in which: i of the agitator, the blades preferably curve Figure l is a view showing my novel agitator around the central body portion substantially in and indicating the vat in which it is operated. the form of a spiral, the inner edge 26 of the 35 Figure 2 is a view taken on the line 2-2 of blades describing a substantially spiral line. on Figure l; and‘ ' V the surface of the central body portion; Prefer Figure 3 is a view taken on the line M of ably, also, the blades are inclined with respect to .Figure l. a normal to the axis of the agitator and prefer The agitator of my invention is adaptedto be ably the directlon or inclination throughout each 40 40 mounted in a vat or tub ii in which the clothes and washing ?uid are placed. The washing vat may be of any desired shape, either square or, as shown in the drawing, circular in cross section. The agitator, generally indicated by the numeral 45 i2, is‘ preferably mounted centrally of the vat it and is driven'by a shaft 63 extending upwardly through the bottom of the vat. Suitable means are provided i‘or supporting the agitator and en abling it to be driven by the it ill. Such 50 means ~may be similar to that shown‘ and de- scribed in a co-pending application of Peter Eduard Geldhoi, filed December 18, 1935, rial No. 55,050 and which has become Pat. No. 2,094,559, Sept. 28, 1937. The shaft 53. may be of the blades is in a direction downward from the normal to the axis. That is, in any vertical section through the axis of the agitator the line formed by the blade is angularly displaced down ward from a normal to the axis of the agitator as drawn through the intersection of the line formed by the blade and the central body portion. The angle of inclination may be constant throughout the length of the blades but preferably the angle or‘ inclination, gradually decreases from the top so ' to the bottom of the agitator, the inclination being approx .. agitator. 15 degrees at the top of the > e the blades of the agitator arepreferably both curved around the surface of the central so ' 2 2,111,15Q \ body portion of the agitator and inclined as‘ above ?cations and changes may be made in the form described, and I have found that the best results of the agitator and relation of parts thereof with out departing from the spirit of the appended are secured when the blades are thus formed, it is of course apparent that the spiral arrangement of the blades may be used without inclining them with respect to a normal to the axis, or the spiral ing of the blades may be omitted and the blades may be simply inclined with respect to a normal to the axis. Preferably, the blades are made con 10 siderably wider at the top of the agitator than at claims. ' I claim: , 1. In a washing machine of the type wherein a washing element is mounted for oscillatable movement substantially centrally of a vat con— taining clothes and washing ?uid, an agitator comprising a base mounted adjacent the bottom 10 the bottom. The blades merge into the part 20 ‘ oi the vat, a central inverted substantially cone of the central body portion and ?are outwardly shaped body portion extending upward from the below that portion of the central body and attain base substantially to the normal surface level of their maximum width. slightly below the section cleansing ?uid, and a plurality of blades extend 15 line 2--2. From slightly below the section line ing downward along said body portion and being 15 2--2, the blades are gradually narrowed toward curved around the body portion in a manner such the bottom of the agitator where they merge that the lower ends of the blades are advanced a into the horizontal portion ill of the base. substantial distance around the body‘ portion ' It will be particularly noted that each of the 20 blades is curved on the surface of the central body portion in the same direction and inclined with respect to a normal to the axis in the same direction so that the agitator. is symmetrical in appearance and pockets 26 are formed extending 2-5. lengthwise of the blades, each of which faces in the counterclockwise direction. A cap 21, which may be of any desired shape, is ?tted to the top of the agitator and may be held in place by any suit from the upper ends. . 2. In a washing machine of the type wherein a 20 washing element is mounted for oscillatable movement substantially centrally of a vat con taining clothes and washing ?uid, an agitator comprising a base mounted adjacent the bottom of the vat, a central inverted substantially cone 25 shaped body portion extending upward from the base substantially to the normal surface level of cleansing ?uid, and a plurality of blades extend able means. ' . ing downward along said body portion and being 30 When the vat is ?lled with cleansing ?uid to curved around the body portion in a‘manner such 30 the level of the plate 22 and the agitator is us that the lower ends of the blades are advanced cillated, as above described, the clothes and wash a substantial distance around the body portion ing ?uid are violently agitated and a consider from the upper ends, each of said blades‘ being able turbulence thereof results. When the agita inclined with respect to a normal to the axis of 35 tor rotates in the clockwise direction, the clothes‘ said agitator. , 35 are thrown outward toward the sides of the vat ' 3. In a washing‘ machine of the type wherein especially near the top of the agitator and upon a washing element is mounted for oscillatable reversal, possibly because of the partial vacuum movement substantially centrally of a vat con created in the pockets 26 when the agitator is taining clothes and washing ?uid, an agitator rotating in the clockwise direction, the clothes comprising a base mounted adjacent the bottom are drawn inward from the sides of the vat to of the vat, a central inverted substantially cone ward the agitator. Accompanied by this move I shaped body portion extending upward from the ment, there is a general tendency for the clothes I in the region of the top of the agitator to move 45 outward toward the sides of the vat, then down ward and inward toward the agitator, and then upward near the central portion of the agitator. Near the surface, because the sides of the blades, upon which the pockets 26 are formed, are more effective than the opposite sides of the blades, the base substantially to the normallsurface level of cleansing ?uid, and a plurality of blades extend ing downward along'said body portion and fun clined with respect to a normal to the axis of the agitator. ' 1i. In a washing machine of the type wherein a washing element is mounted for oscillatable movement substantially centrally of a vat con clothes appear to move in a counterclockwise di taining ‘clothes and washing ?uid, an agitator rection. This counterclockwise movement of the clothes, while not existent to any considerable ex, tent, is su?icient to insure that the clothes pe 55 riodically change their relative positions in the vat so that newclothes surfaces are constantly presented to the action of the agitator. During the above described action, the blades cause a considerable thread-deforming action on the 60 clothes, particularly when an article of clothing is caught in a pocket formed by one of the blades and is carried backward and forward in accord ance with the oscillations of the agitator. While I have shown the preferred form of my comprising a base mounted adjacent the bottom of the vat, a. central inverted substantially cone 65 invention, it will be apparent that various modi .shaped body portion extending upward from the base substantially to the normal surface level of cleansing ?uid, a plurality of blades extending 55 downward along said body portion and being curved in the same direction around the body portion in a manner such that the lower ends‘ of the blades are advanced a substantial distance around the body portion from the upper ends. 60 and each of said blades being inclined downward from a normal 'to the axis of the central portion. JABEZ CURRY NELSON.