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 25 13 4 Sheets-‘Sheet 2 _ l3 ‘ 17 I7 10 18 - 10 . I L /4 *l I; ' 1 g I I; N i '11 . 18 . 17 /8 17. a2 _ Z9 30 'mvENToR (,TJPeZez-son -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ap 5 Figure 5 is a- similar view but showing the re paratus, while being readily adaptable to many movable frame partly withdrawn from the rotor.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.