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Sept. 17, 1946.
J. PETERSON
2,407,722
DUST COLLECTOR
Filed Sept. 18, 1944
4 Shee'ts-Sheet 1
-
INVéNATO?
C .7. Pa 2 arson
BY
ATTO RN EYS
Sept. 17, 1946.
2,407,722
C; J. PETERSON
'
nusw COLLECTOR
_ Filed Sept. 18, 1944
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-BY
ATTO RN EYS
SePF- 17, 1946.
c. J. PETERSON
2,407,722
DUST COLLECTOR
Filed Sept. 18, 19214
4_Shee_ts-Sheet s
INVENTOR
0,..7. Peterson
ATTORNEYS
2,407,722‘
Patented Sept. 17, 1946
UNITED STATES. PATENT OFFICE
2,407,722
DUST COLLECTOR
Clarence J. Peterson, Kingsburg, Calif., assignor to
Kingsburg. Cotton Oil 00., Kingsburg, Calif., a
corporation of California
‘Application September 18, 1944, Serial No. 554,615,
'7 Claims.
1
(Cl. 18'3--57)
2
This invention relates in general to and it is an
Figure 4 is a fragmentary, enlarged section
object to provide, a novel apparatus for remov
showing the outer portion of ‘ one of the remov
ing and recovering for disposal, dust from the
able frames and the manner of normally secur
air outlets of machines which discharge large
ing it in place.
I
quantities of dust along with vented air; the ap 5
Figure 5 is a- similar view but showing the re
paratus, while being readily adaptable to many
movable frame partly withdrawn from the rotor.
uses, being especially designed for use in con
Figure 6 is a fragmentary peripheral view of
’ nection with the air vent from feed mills where
the rotor,’ partly in section and partly broken
alfalfa and the like is ground into feed meal.
away.
A further object of the invention is'to provide 10
Referring now more particularly to the char
a dust. collector which is continuous in operation
acters of reference on the ‘drawings, the appara
both as to the dust removal from the vented air,
tus comprises an upstanding housing I which en
and the recovery of the dust for disposal or use,
closes in clearance relation, a dust collecting
depending on the nature thereof.
rotor 2 which is supported for rotation in the
An additional object of this invention is to pro 15 housing I by means of a horizontal center shaft
vide a dust collector which embodies a novel dust
3 carried in suitable journals 4. The rotor is‘ of
collecting rotor, and Vacuum means to remove the
substantially greater diameter than axial extent,
collected dust from the rotor at a predetermined
as shown.
point in the path of rotation thereof.
At a point above the rotor the housing I is pro
Another object of the invention is to provide
vided with a vertical conduit 5 through which
a dust collector, asin the preceding paragraph,
the dust laden air is adapted to be fed under
wherein the rotor is enclosed in a housing into
some but relative low pressure, and a cross ba?le
which thedust bearing air is fed under pressure;
6‘ in the housingbetween the rotor and‘conduit
the rotor including a plurality 1 of radially dis
5 diffuses the incoming air stream in‘ the housing
posed‘ segmental pockets in side by side relation, » ‘and about the periphery of the rotor.
adjacent pockets being open at opposite ends,
The rotor 2 comprises circular side plates 1
oneto the periphery of the rotor and the other
which run ‘relatively close to the corresponding
to a central or axial duct which leads to atmos
sides 8 of housing I; said side plates 1' being
phere, and a wall between adjacent pockets
ported at the center and carried‘ on tubular hubs
pervious to air but impervious to dust whereby 30 9 which are in turn supported by spiders I0 from
the dust accumulates in the peripherally open
shaft 3. The tubular hubs 9 project in turnable
pockets and the air escapes through said walls
relation through the sides 8 of the housing
and out the duct.
through seals II, and serve as air escape ducts
It is also an object to provide a dust collector
between the rotor at the center and atmosphere.
as above wherein the pockets are formed byralter
Between the side‘ plates 1 the rotor comprises
nately ?xed‘ and removable frames; the frames
a plurality of matching, radially extending seg
forming the peripherally open pockets being re
mental frames, alternate ones of which are in
movable and carrying therewith the air pervious,
dicated generallyvat I2 and I3; these frames being
dust collecting walls, which are of a fabric such
of
limited circumferential extent, with the frames
as muslin.
'
40 I2 ?xed in the rotor and the frames [3 removable
A further object of the invention is to produce
as will hereinafter appear in greater detail.
a simple and inexpensive device and yet one
The ?xed frames l2 each include opposite side
which will be exceedingly effective for the pur
members I4 secured to the sides of the rotor and
pose for which it is designed.
a, cross member I5 at the outer end whereby said
These objects I accomplish by means of such
frames‘ I2 de?ne pockets I6. which are closed at
structure and relative arrangement of parts as
the outer end and open at their inner end to the
will fully appear by a perusal of the following
center of the rotor and air escape ducts 9.
speci?cation and claims.
The removable frames l3 each include opposite
In the drawings similar characters of reference
side members I’! engaging but free from the sides
indicate corresponding parts in the several views.
Figure 1 is a side elevation of the apparatus,
of the rotor and a cross member l8 at their inner
partly broken away.
end whereby said frames l3 de?ne pockets I9
Figure 2 is a cross section on line 2-2 of Fig. 1.
which are open at their outer ends and closed at
Figure 3 is an enlarged fragmentary elevation
their inner ends.
'
of the dust collecting rotor, partly broken away. 55
It will thus be seen that the pockets formed? by
2,407,722
3
The removable frames I3 are faced on both
While this specification sets forth in detail the
present and preferred construction of the device,
still in practice such deviations from such detail
sides with dust collecting walls 20 formed of
may be resorted to as do not form a departure
' frames l2 and I3 alternately open to the center
of the rotor and the periphery thereof.
from the spirit of the invention, as de?ned, by the,
appended claims.
pervious to air but impervious to the dust; such
Having thus described my invention, what I
fabric sheets separating adjacent pockets l6 and
claim as new and useful and desire to secure by
I9 from" each other. These sheets are secured
Letters Patent is:
a
1
along opposite edges to the side members ll of
l. A dust collector comprising a housing into
frames l3 by means of removable keys 2! seating 10
sheets of fabric such as muslin of a mesh which is
' ‘which dust laden air is adapted to be fed under
in matching grooves in said members while at
their outer ends the sheets lap the cross members
l5 ofthe ?xed frames and are held in place by
removable cross keys 22 seated in matching
' grooves in said members l5.
.
pressure, a driven rotor turnably mounted in
' the housing, means forming an air vent duct from
the center of the rotor to atmosphere outside the
15 housing, a plurality of alternately ?xed and re
'
The frames l3 are normally held against re-'
moval by means of end plates 23 on the rotor at l
movable, radial frames included in the rotor in
adjacent side by side relation, the ?xed frames
forming pockets open only to the duct, the re
the outer end of each ?xed frame l2; the plates
movable frames forming pockets open only to the
overhanging the outer ends of frames [3 only
sufficient to retain the latter in place and thus do 20 housing, a wall pervious to air but impervious,
to dust mounted between and separating adja
not obstruct the outer open ends of pockets l9.
cent pockets, and means cooperating at one'point'
The rotor is rotated in relatively slow step by
step'movement by the mechanism shown in Fig.
with the rotor at the periphery thereof to with
1, which comprises an offset bell crank assembly
draw accumulated dust from the pockets open
24 pivotally connected to a push arm 25, disposed 25 to the housing.
tangentially of the rotor; the bell crank assembly
2. A dust collector comprising a housing into
being rocked back and forth so as to slowly re
which dust laden air is adapted to be fed under
ciprocate the push arm 25, the latter including a
pressure, a driven rotor turnably mounted in
catch 26 which engages the end plates succes
the housing, means forming an air vent ‘duct
sively as the arm reciprocates. The assembly 24 30 from the center of the rotor to atmosphere out
is rocked by the power mechanism indicated gen
side the housing, a plurality of alternately ?xed
erally at 21 which is mounted exteriorly of the
and removable, radial frames included in ‘the
housing l.
'
When the above described apparatus is in op
eration the dust laden air'enters the housing I
rotor in adjacent side by side relation, the ?xed ‘
frames forming pockets open only to the duct,
the removable frames forming pockets open only
to the housing, a wall pervious to air but im
pervious to dust mounted between and separating
pressure the air seeks escape and thus flows into
adjacent pockets, and means cooperating at one
open ended pockets I9, through the air pervious
point with the rotor at the periphery thereof to
walls 20, into pockets l6 and thence escapes to 40 withdraw accumulated dust from the pockets
the center of the rotor and out of ducts 9; the
open to the housing; said walls comprising fabric
dust being ?ltered from the air by the dust im
sheets and said sheets being carried by the. re
pervious walls 20 and is thus accumulatedand
movable frames,
'
~
"
'
retained in the pockets 19.
' 7
3. A-‘dust collector as in claim 2 including end
At the bottom of the rotor the accumulated 45 members removably attached to the periphery’
dust iswithdrawn by vacuum from thepockets
of the rotor-at the ends of the ?xed frames; ‘said
l9' successively and by means of the following
end members partially overhanging the remov
arrangement:
‘
able frames at the outer ends of the latter and
At the bottom the housing I is formed with a
normally preventing removal thereof.
transverse port 28 through which a vertically 50
ll. A dust collector comprising a housing into
movable suction head 29 projects from below;
which dust laden air is adapted to be fed under
such suction head being supported by and urged
pressure, a driven rotor turnably mounted in the
upwardly by a pair of transversally spaced leaf
housing, means forming an air Vent duct from
springs 30. This head includes upstanding end
the center of the rotor to atmosphere ‘outside
‘?anges 3| slidably cooperating with the sides of 55 the housing, a plurality of radially extending,
the rotor and ?exible sealing aprons 32 in pairs,
segmental frames in the rotor in engaged match
which ride the periphery of the rotor from side
ing relation,‘ said frames being closed at‘ their
to side thereof; the spacing of said pairs of aprons
outer and inner ends alternately whereby to form
being such that only one pocket l9 registers
circumferentially adjacent, radially extending '
therebetween at a time, and a vacuum conduit 33 60 pockets open only to the duct and into the hous
under some pressure, strikes the baf?e or deflector
. G'and diffuses in said housing. As it is under
'
leads to the head between said pairs of aprons.
' The head 29 is sealed with the housing about the
ing respectively, fabric walls secured in connec
tion with certain of said frames separating said
‘part 28 by ?exible curtains 34.
adjacent pockets, the walls being pervious to air
With each step by step movement of the rotor,
and impervious to dust, and means to withdraw
pockets I9 successively register with the head 29; 65 accumulated dust from the pockets which open
the aprons 32 then bearing against the plates 23
into the housing.
of adjacent frames l2.
5. A dust collector comprising a housing into
The vacuum from conduit 33 then ‘causes an air
which dust laden, air is adapted to be fed under
flow from pockets l6 into pockets l9 drawing the
pressureya driven rotor turnably mounted in the
accumulated dust from the latter into conduit 33 70 housing, means forming an air vent duct from
for disposal or recovery.
,
the center of the rotor to atmosphere outside
From the foregoing description it will be readily
the housing, a plurality ofradially extending,
seen that I have produced such a device as sub
segmental frames in the rotor in engaged match
stantially ful?lls the objects of ,theinvention as
ing,v relation, said frames being closed at their
75 , outer and inner ends alternately whereby to form
.set forth herein.
'
2,407,722
5
circumferentially adjacent, radially extending
pockets open only to the duct and into the hous
ing respectively, fabric walls secured in connec
tion with certain of said frames separating said
adjacent pockets, the walls being pervious to air
and impervious to dust, and means to withdraw
accumulated dust from the pockets which open
6
which dust laden air may be discharged, a driven
rotor turnably mounted in the housing, means
forming an air vent duct leading from the center
of the rotor to outside the housing, means form
ing a plurality of substantially radial pockets in
the rotor, alternate pockets opening only into
said housing adjacent the periphery of the rotor
and the intermediate pockets opening only into
?xed and removable relative to the rotor, and the
said duct, a wall pervious to air but impervious
removable frames carrying said fabric walls.
10 to dust mounted between and separating adja
6. A dust collector comprising a housing into
cent pockets, means maintaining a suction at one
which dust laden air is adapted to be fed under
point in the periphery of the rotor, whereby‘the
pressure, a driven rotor turnably mounted in the
pockets which open into the casing will inter
housing, a plurality of circumferentially spaced
mittently pass such suction point, the suction
dust collecting pockets formed in and open to
then functioning to withdraw and carry away
the periphery of the rotor, and means cooperat
dust from such pockets; such suction means in
ing with the rotor periphery at a predetermined
cluding a spring-pressed suction head mounted
point operative to successively communicate with
through the wall of the casing for relative move
the pockets and withdraw and carry away accu
ment toward the rotor, spaced apart ?exible seal
mulated dust therefrom; said means including a 20 ing aprons on the head and frictionally engaging
suction head, a suction conduit leading to said
the periphery of the rotor, the space between
head, spring means urging the suction head
the aprons being such as to open communication
toward the periphery of the rotor, and sealing
between a selected number of such pockets and
into the housing; said frames being alternately
means on the head riding the rotor adapted to
such head, and a suction conduit leading from
provide sealed communication of the head with 25 such head.
said pockets successively.
'7. A dust collector comprising a housing into
CLARENCE J. PETERSON.
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