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Патент USA US2115956

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May 3, 1938.
Filed Feb. 1, 1937
2 Sheets-Sheet 1
May 3, 1938I
' Filed Feb. 1, 1937
2 Sheets-Sheet-Z
‘Patented May 3, 1938
Arthur P. Jorgenson, Racine, Wis., assignor, by
mesne asignments, to Landon P. Smith, Inc.,
Irvington, N. J., a corporation of New Jersey
Application February 1, 1937, Serial No. 123,439 ‘
3; Claims. (Cl. 259-108)
This invention relates to devices for stirring, apparatus shown in Fig. 1, taken at the plane
mixing, or blending paint or other liquids by di
rect action upon such paint or liquid in a con
The invention resides in a form. of apparatus
in which an electric motor, or other suitable
source, of power, is provided with rigid bai?e sup
portswhich bear opposing ba?les at their ends
and in which the rotating shaft of said motor
10 or power source connects with a shaft disposed
between the baiile supports, upon which shaft is
carried an ‘impeller or impellers. - The motor
drives the shaft inithe proper direction to throw
a liquid which is to be treated against the faces
15 of the opposing battles. 'The whole is arranged
for ready portability and, by reason of the fact
that the reaction of the impeller is largely ab
sorbed by the baiiies, may be provided with sim
ple and eiiective clamping means for securing
‘20 the same to the side of a container, preferably in
such manner that the baffles forming the lower
most part of the apparatus may rest directly upon
the bottom of the container.
Portable agitators forv the mixing of paint or
25 other ?uids have‘ been constructed in a‘ wide
‘variety of forms. In the forms heretofore pro
posed or used, however,‘ the principal object
sought apparently has .been to produce circula
tion in the liquid undergoing treatment. For the
30 redispersion of badly caked or settled-out paint
the object to be sought is not so much that of
circulation of the liquid, but rather that of the
grinding or disintegration of the solid aggregates
which are loosened or washed away from the
35 cake by the circulating ?uid. Heretofore such an
action has been obtained only in large stationary
equipment and it has been the custom to return
to the factory where such facilities are available
paint which has become badly caked through
40 protracted storage. In the apparatus of this in
vention, however, a simple and easily portable
and easily cleaned apparatus is provided which
produces, in addition to an active circulation of
the fluid, an impact disintegration of aggregates
45 suspended therein.
The apparatus of this invention is best de
scribed by reference to the accompanying draw
ings, wherein—
Fig. 1 is a side view of an apparatus of this
50 invention, shown mounted in position in a typi
cal container, portions of the latter being broken
Fig. 2 is a. fragmentary end view of a part of
the apparatus shown in Fig. 1;
Fig. 3 is a section, looking: upwardly,v of the
Fig. 4 is a section taken downwardly of the
apparatus shown in Fig. 1, taken at the plane
Fig. 5 is a sectional view, looking downwardly, 6
taken at the plane 5-—5 of Fig. 1, showing in de
tail the construction of an auxiliary impeller; and
Fig. 6 is a side View in detail of the impeller
shown in Fig. 5.
Referring to Fig. 1, there is shown one form
of apparatus embodying this invention. The ape
paratus there shown comprises a motor I, for fur
nishing power for operation thereof. The motor
maybe of any suitable type, as, for example, a 15
one-fourth H. P. single phase induction motor,
capable of operating upon ordinary commercially
distributed electric power. Secured to the top
of the motor I is a convenient grip handle 2 in
which there is housed a suitable switch 3 for ,20
starting and stopping the motor. As shown more
clearly in Fig. 2, the grip handle 2 is secured to
the motor by means of bolts 4. A flexible cable
5 is provided through which the necessary ‘driv
ing current is supp-lied.
Rigidlytsecured to the bottom of the motor I is
a‘ supporting frame 6, which is held in place by
bolts 7, as shown more'clearly in Fig. 1. The
frame 6 for all intents and purposes is a rigid
portion of the housing of the motor I and may be 30
integrally formed therewith, if desired. Formed
as a part of the frame 6 are sockets 8 in which
are held the square baffle supports 9. The ba?le
supports are elongated, square rods, the ends of
which are diagonally slotted to receive obliquely 35
placed baffle plates 10, as shown in Fig. 1 and in
greater detail in Fig. 4.
Slidably mounted upon one of the ba?ie sup
port rods 9 is the mounting clamp l I, which is
provided With a suitable clamping screw 12 to 40
which there is attached a handle lit. The clamp
is shown in Fig. l in position on the side of a
typical container 15. To provide the sliding con
nection with ba?ie support rod 9, the clamp is 45
provided with an integrally formed head l4
through which a square hole passes and in which
the square rod 9 is slidably received, as is shown
clearly on the right-hand side of Fig. 3. This
arrangement, particularly in view of the peculiar 50
interior con?guration of the clamp H, as shown
in Fig. 1, permits the apparatus to be clamped
to the rim of a variety of’ heights, sizes, and
forms, of, containers. The clamp ll insures re
tention of the apparatus in a vertical position, 55
2 .
while the weight of the apparatus is borne di
rectly by the bottom of the container upon which
rests the lower ends of the baffles I0.
The moving parts of the apparatus are at
tached directly to the shaft of the motor I, al
though supplementary bearings may be provided,
if desired, and are composed of a coupling I6
and an elongated square impeller shaft II. The
shaft I’! bears at its lower end an impeller I8,
10 which is mounted in a slot cut diagonally across
the end of said shaft IT. The length of shaft I1
is so adjusted that the lower edge of the impeller
I8 is slightly above the lower ends of the baffle
plates I0, so that the rotating parts will clear the
15 surface upon which the apparatus rests.
In addition to the impeller I8 there is posi
tioned on the shaft I‘! an auxiliary impeller I9,
which is composed of a pair of blades 20 and 2I
secured to a tubular hub 22. Referringto Fig. 1,
20 it will be noted that the square shaft I1 is pro
vided with a plurality of notches 23 disposed
along its length. An inwardly projecting lug on
the upper edge of the blade 20 is arranged to be
received in the notches 23 when turned to the
25 position shown in Fig. 5. Due to the shape of the
notches 23 and the direction of rotation of the
shaft II, the lug on blade 20 is engaged in the
notch 23, thus holding the auxiliary impeller I9
securely in place while the apparatus is in op
eration. If it is desired to move ‘the auxiliary
impeller to one of the other notches 23, this may
be accomplished by turning the impeller I9 one
eighth of a turn clockwise, as viewed in Fig. 5,
whereupon the impeller I9 may be shifted ver
tically to any of the other positions desired and
again engaged in a notch 23. Adjustability of
the auxiliary impeller I9 is desirable by reason
of the variation in sizes of containers which may
be employed to hold the paint or liquid under
going treatment.
Paint being treated in a one
gallon container would call for'anappropriately
lower position of the impeller than paint under
going treatment in a ?ve gallon container ap
proximating in dimensions the one shown in Fig.
1, while some containers may call for shifting the
impeller I9 to the topmost notch where it is re
moved entirely from contact with the liquid.
In operation, the shaft IT and impellers at
tached thereto rotate in the direction shown by
to the arrow in Fig. 4. In so doing it will be noted
that the impeller I8 sweeps in a direction which
may be de?ned by pointing out that it ?rst crosses
a line connecting the remote edges 24 of the
ba?les I0 and then in passing onwardly in its
path it crosses a line connecting the near edges
'25 ‘of the baffles I0. The parts are arranged in
relatively close proximity to one another and the
impeller I8 is driven preferably at a speed of ap
proximately 1000 to 2000 R. P. M. Under these
conditions any lumps or fragments of caked or
settled paint which come into the path of the
impeller I8 are struck a blow of high intensity or
are driven against the baf?es with great force,
sufficient to disintegrate and redisperse them. In
accomplishing this action the ba?les appear to
play an important part and, preferably, should
be placed obliquely, as shown, since in an ap
paratus not including such baffles very markedly
70 inferior results are obtained. The baffles further
play an important part in absorbing a large part
of the reaction of the impeller, thus relieving the
support of the heavy torque which would other~
wise be imposed thereon and making possible the
use of the simple sliding clamp II for support.
In a typical instance of use of the apparatus
of this invention, ?ve, gallons of paint, held in a
container similar to the one shown in Fig. l and
designated by the numeral I5 and which has been
held in storage until badly settled, is opened. An
almost solid layer of appreciable depth will be
found in the bottom of the container. The ap
paratus of this invention is thrust into the con
tainer and the clamp II adjusted to the rim
of the container and clamped in place by means 10
of the handle I3 on the clamping screw I2. The
lower parts of the apparatus, including the baffles
I0 and the impeller I8, will then be found to be
resting upon, or partially penetrating, the solid
layer held in the container. The apparatus is 15
then connected to a source of electric power and
the switch 3 thrown to close the circuit. Shaft
' I1 and the impellers carried thereby are immedi
ately placed in rotation and the apparatus, by
reason of the sliding connection with the head 20
I4 of the clamp I I, immediately starts to descend,
quickly'reaching a position in the lower part of
the container, as shown in Fig. 1.
Unless the
paint is unusually obstinate, after operation for
approximately two minutes the entire contents of 25
the container will be found to be uniformly dis
persed. In particularly obstinate cases the han
dle I3 may be loosened and the apparatus moved
once or twice during the treatment.
The apparatus of this invention, as will be ob
served from the above description, in addition to
being novel is‘ simple, convenient in use, and high
ly effective. Its simple construction lends itself
well to rapid and easy cleaning, an important _
feature in any device of this nature. While this
invention has been described with the aid of
drawings and description setting forth one speci?c
embodiment thereof and the manner of its use,
it is intended that the protection to be granted
hereon be not unnecessarily limited thereby, but 40
that such protection extend to the full limits of
‘the advance disclosed and claimed herein.
That which I claim as my invention and wish
to secure by Letters Patent is as follows:
In an apparatus for mixing ?uids, the com 145
bination comprising a frame, stationary ba?le
supports extending from said frame, ba?le blades
at the end of said supports disposed in planes
parallel to one another and arranged obliquely
with respect to a line between them, a shaft ar
ranged for rotation and disposed lengthwise be
tween said supports, an impeller mounted on said
shaft with the faces thereof longitudinally dis
posed with respect to said shaft, and means en
gaging said shaft for rotation of the same in
such direction with respect to said baffles that said
impeller sweeps, during a part of its circular
movement, from alignment with the exterior of
the edges of said baf?es to alignment with the
interior edges thereof.
2. In an apparatus for ?uid mixing, the com
bination comprising a clamp for engaging a liquid
container, a vertically disposed guiding member
mounted on said clamp, a rotatable impeller shaft
having an impeller, a frame for rotatably mount 65
ing said shaft, and a vertical baffle support ex
tending downwardly from said frame to a point
below said impeller and being slidably held in
said vertically disposed guiding member whereby
said frame, rotatable impeller shaft and baffle 70
support are held in vertical position while remain
ing free to rest upon and settle through a solid
deposit on the bottom of said liquid container.
3. In an apparatus for fluid mixing, the com
bination comprising a clamp for engaging a liquid 75
container, a vertically disposed guiding member
guiding member whereby said frame, rotatable
mounted on said clamp, a rotatable impeller shaft
having an impeller, a frame for rotatably mount
ing said shaft, and vertical baflle supports ex
tending downwardly from said frame to a point
below said impeller, one of said baille supports
impeller shaft and ba?le support are held in
vertical position while remaining free to rest upon
being slidably held in said vertically disposed
and settle through a solid deposit on the bottom
of said liquid container.
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