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Патент USA US2105774

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Jan. 18, 1938.
'
JHCh NELSON
2,105,774
AGITATOR FOR WASHING MACHINES
Filed Dec. 23, 1935
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ATT DRNEY I
Patented‘ Jam-18, 1938
2,105,774
ATE-INT OFFICE
TBS
2,105,774
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AGITATOR FOR wasma moms
: .labez Curry Nelson, Syracuse, N. Y., assiznor to
Easy Washing Machine Corporation, Syracuse, 1 -
N. Y., a corporation of Delaware
Application December 23, 1935, Serial No. 55,716
8 Claims.
(Cl. 259-401)
My invention relates to washing machines and concentric with the shaft I3. The preferred
more particularly, to a novel agitator or dolly manner of supporting and driving the agitator
therefor.
An object of my invention is to provide an agi
5 tator adapted to be mounted in a washing vat
for oscillation therein which is adapted to cleanse
the clothes thoroughly and in a minimum length
of time.
Another object of my invention is to provide
10 an agitator for a washing machine adapted to
be oscillated in a washing vat, the agitator hav
ing a central irregularly shaped body portion
and blades so constructed and arranged that they
cooperate with the body portion to cause a tur
16 bulence of the washing ?uid, a thorough inter
mingling of the clothes and washing ?uid and a
constant circulation thereof, whereby new clothes
surfaces are constantly being presented to the
action of the agitator.
20
More speci?cally, my invention contemplates
is more particularly shown and described in a
co-pending application of Peter Eduard Geldhof
?led December 18th, .1935, Ser. No. 55,050. The 5
drive shaft l3 may be driven by any suitable
mechanism and from any suitable source of
power, not necessary to be shown or described
herein since such driving mechanism is well
known in the art to which this invention applies. 10
Preferably, the shaft is driven in an oscillatory
manner so as to drive the agitator through an
arc of 180 degrees, more or less, and at a speed
of between ?fty and sixty oscillations per minute.
The agitator l2 comprises a base Hi which is 15
mounted close to the bottom of the vat I I and is
sloped slightly upward from the outer circum
ference toward the center thereof. The body
portion of the agitator comprises an irregularly
shaped ?gure which is made up of two substan- 2o
the provision of an agitator for a washing ma
tially pyramidically shaped structures I‘! and I8
chine in which the central body portion of the
mounted with their bases l9 and 2i in the same
agitator comprises two pyramidically shaped
plane. It has been found that a better washing -
?gures placed base to base, with the bases in—
25 clined to the horizontal, whereby an irregularly
shaped body, portion is formed and in which a
plurality of blades are provided adapted to co
operate with the body portion to produce a tur
bulence of the washing fluid and a substantial
39 thread-deforming action on the clothes, whereby
action is secured if the body portion is mounted
so that the bases I9 and 2! of the pyramids lie 2
in a plane at an angle to the horizontal, where
the clothes are thoroughly cleansed.
Other objects and advantages of my invention
will be more apparent from the following descrip
tion when taken in connection with the accom
35 panying drawing, in which:
Figure 1 is a view of the invention showing my
novel agitator and indicating the vat in which
it is operated.
Figure 2_ is a view taken on the line 2-2 of
40 Figure 1.‘
Figure 3 is a view taken on the line 3-3 of
Figure 1'.
The agitator of my invention is adapted to
be mounted in a vat or tub II in which the
45 clothes and washing ?uid are placed. The wash
ing 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 I2, is preferably mounted cen
50 trally of the vat II and is driven by a shaft l3
extending upward through the bottom of the
vat. Suitable means are provided for supporting
the agitator and enabling it to be driven by the
shaft l3, such means including a sleeve M which
55 extends upward through the bottom of the vat
by the body portion presents an unsymmetrically
shaped structure-to the clothes.
The apices of the pyramids ll and I8 are cut
off on substantially horizontal planes so that the 30
pyramids are actually frusto-pyramidical with
the lower triangularly shaped cut o? portion
22 resting upon the base l6 and the upper sub
stantially triangularly shaped cut off portion 23
presenting a horizontal plane for the reception 35
of a cap 24 which may be mounted on the top
of the agitator in any suitable manner. The cap
2'3 may be of any desired shape and is provided
with a lower ?at surface 26 adapted to prevent
the upward splashing of cleansing ?uid when the 40
agitator is oscillated.
-
The left hand side of each face of each of the
pyramids is extended beyond the plane of the
adjacent face to form blades 21, 28 and 29, that
is, for example, the surface 3| of the upper pyra- 45
mid and the surface 32 of the lower pyramid
are extended to the left beyond the plane of
the adjacent faces 33 and 34 to form blade 28.
The blades, toward their outer edges, are slight
ly curved in a clockwise direction as more clear- 50
1y shown in Figure 3, whereby. to form a shallow
pocket extending lengthwise of each of the
blades.
The outer edges 36 of the blades are
rounded oif, as more clearly shown in Figures 2
and 3, so as to prevent the formation of sharp 55
2
2,105,774
edges which would be likely to tear the clothes.
The blades, further. are comparatively narrow at
the top of the agitator, for example, as at 37,
and gradually increase in width toward the cor
ners 38 of the upper pyramid where they are
appreciably wider. The blades beyond the cor
me!‘ 38 of the pyramid are narrowed somewhat
and extend downward substantially in the plane
of the adjacent face of the agitator with the
30 outer ends slightly curved in a horizontal plane
in a clockwise direction. Near the base it, as
at 39, the outer edges 36 of the blades are
curved outward so that the lower edges of the
blades extend substantially to the mriphery of
the base i5.
Extending downward on the faces of the upper
pyramid l8 from the lower surface 26 of the cap
to the base 89, are a plurality of small blades 4|,
Q2 and 43. Each of these blades, at the top, ex
tends to the outer periphery of the cap 24 and
gradually becomes narrower toward the base l9
substantially in conformity with the slope of the
faces of the pyramid. Although each of these
blades may be made radial or may be inclined in
25 a clockwise direction with respect to a normal
to the corresponding face, preferably, the blade
4| extends radially while the blades 42 and 43 are
‘ inclined from a normal to the plane of the face
of the pyramid in a clockwise direction.
When the agitator is oscillated, the clothes and
washing ?uid are carried backward and forward
in accordance with the oscillations of the agi
tator. Due to the fact that the agitator is not
symmetrical, a turbulent, forceful, action oc
curs which is substantially equally effective
throughout the depth of the cleansing ?uid. The
blades 4|, 42 and 43 effect a substantial scrubbing
thread-deforming action on the clothes. The
blades 21, 28 and 29, because of pockets formed
on the clockwise sides of the blades, tend to cause
the clothes and washing ?uid to circulate in the
clockwise direction. The resultant clockwise ro
tation of the clothes and washing ?uid occurs
because the blades 21, 28 and 29 exert a. more
powerful thrust on the clothes and washing
?uid when the agitator is rotated in the clock
wise direction than when rotated in the counter
clockwise direction so that the clothes are periodi
cally caused to change their relative positions in
the vat so that new clothes surfaces are constant
ly being presented to the action of the agitator.
,While I have shown the preferred form of my
invention, it will be apparent that various modi
?cations and changes may be made in the form of
the agitator and relation of parts thereof without
departing from the spirit of the appended claims.
I claim:
1. An agitator adapted to be mounted for oscil
lation in a vat containing clothes and washing
?uid, said agitator comprising two pyramidically
shaped ?gures having their bases facing upon
each other and constituting a body portion for
the agitator, said bases extending at an angle to
the horizontal, and a plurality of blades extend
65 ing from said body portion.
2. An agitator adapted to be mounted for oscil
lation in a vat containing clothes and washing
?uid, said agitator comprising two pyramidically
shaped ?gures having their bases facing upon
each other and constituting a body portion for the
agitator, said bases extending at an angle to the
horizontal, and a. plurality of blades extending
from said body portion, said blades being formed ;
by extending each face of the pyramid along one
side thereof beyond the plane of the adjacent
face.
3. An agitator adapted to be mounted for oscil~
lation in a vat containing clothes and washing
fluid, said agitator comprising two separate and
distinct pyramidically shaped ?gures mounted
substantially one above the other and constituting
a body portion for the agitator, a base toward
which the apex of the lower of said two pyramidi- -
cally shaped ?gures extends, and a plurality of
blades extending from said body portion.
4. An agitator adapted to be mounted for oscil
lation in a vat containing clothes and washing
fluid, said agitator comprising two pyramidically
shaped ?gures having their bases facing upon 15
each other and constituting a body portion for
the agitator, and a plurality of blades extending
from said body portion, each of said blades being
curved in the same direction in horizontal cross
section.
20
v
5. An agitator adapted to be mounted in a vat
containing clothes and washing ?uid, said agitator
comprising two pyramidically shaped ?gures con
stituting a body portion for the agitator, and a
plurality of blades formed by extending each face 25
of the two pyramids along one side beyond the
plane of the adjacent face, each of said blades
being curved in the same direction in horizontal
cross section.
6. An agitator adapted to be mounted for oscil 30
lation in a vat containing clothes and washing
?uid, the agitator being in over-all diameter less
than half the diameter of the vat so as to provide
a space surrounding the agitator for receiving
and washing clothes, said agitator comprising two 35
separate and distinct substantially pyramidically
shaped ?gures mounted substantially one above
the other and constituting a body portion for the
agitator, the apex of the lower of said pyramids
extending downward toward the bottom of the 40
vat and the apex of the other pyramid extending
upward toward the surface level of the liquid
in the vat.
7. An agitator adapted to be mounted for oscil
lation in a vat containing clothes and washing 45
?uid, the agitator being in over-all diameter less
than half the diameter of the vat so as to pro
vide a space surrounding the agitator for receiv
ing and washing clothes, said agitator comprising
two separate and distinct substantially pyramidi
cally shaped ?gures mounted substantially one
above the other with their bases facing upon
each other and constituting a body portion for
the agitator, and a plurality of blades extending
from said body portion, said blades being formed
by extending the faces of the pyramids beyond
the plane of the adjacent faces.
8. An agitator adapted to be mounted for oscil
lation in a vat containing clothes and washing
?uid, the agitator being in over-all diameter less
than half the diameter of the vat so as to provide
a space surrounding the agitator for receiving
and washing clothes, said agitator comprising a.
substantially disc-shaped base and two separate
and distinct substantially pyramidically shaped
?gures constituting a body portion extending up
ward from said disc-shaped base, said pyramidi
cally shaped ?gures being mounted with their
bases contiguous and with the apex of one of the
pyramids extending downward toward said disc
shaped base and the apex of the other pyramid 70
extending upward toward the surface level of
cleansing ?uid.
-
JABEZ CURRY NELSON.
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