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Патент USA US2111152

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March 15, 1938.
JQQNELSON
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2,111,152
AGIVTATOR FOR WASHING MACHINES
Filed Dec._ 25, 1955
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Wrmass
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ATT uRnEY
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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.
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.
_
.
.
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
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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.
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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.
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