US1260680A - Separator for grits and meal. - Google Patents

Description

J. 8. JORDAN.

SEPARAT-OR FOR GRITS AND MEAL.

APPLICATION HLED FEB. 28. 1916;

1,260,680. Patented Mar. 26, 1918.

2 SHEETS-SHEET 1.

" Fig.1.

WITNESSES.-

LspmnnAw, SEPARATOB FOR GRITS AND MEAL.

APPLICATION FILED FEB. 28. I916.

Patented Mar, 26, 1918.

r ,INVENTOR Aftamqv WITNESSES.-

i reeaeso.

J LIUs sInN Y qoi ipAn, or LODGE, SOUTH CAROLINA.

"s PARA'roR roe GRI'IJS Ann MEAL.

To all whomz't concern Be it known; that I, Jniaus JORDAN, citizen voffthe United States, residing at Lodge, in the county of Colleton and State of SouthCarolinmhave invented anew and useful Separator for G rits and: Meal, of

Y which the following-is a specification.

' w The present invention, relates to certain. improvements in, separators toadapt the same particularly forthe; separation of grits and meal, and-to separate therefrom; bran and husk, as the materialsiare passed. through the machine. a

An object of the present invention is to provide a sifting. screen of relatively fine mesh, adapted to be reciprocated tofsift meal therethrough, and which is providedwith a relatively coarseamesh screen fixedstation- 'arily beneath the meal screen. and adapted for frictional: contact: therewith to cleanse.

the meal screen andprevent the same from bars 15, andilower longitudinal bars 16. The

,7 clogging up. 1

Another object of the invention is toprovide a machinecapable ofeffecting thissepa ration, and which is provided .Withseparate outlets adapted to bequicklv adjusted to deliver the separated" materials from either side of the machine, and which comprises but relatively few partsrand requires but little power tooperate the same. a i

The invention further aims at the. pro-:

vision of various othernOVel devices and ar 'ra'ngements whichwill hereinafterbe point-M ed out in the following detaildescription of invention, the same being illustrated in the.

the present preferred: embodiment of the accompanying drawings, wherein Figure lis a side elevation .of a separator involving the features of thls lnvention.

" Fig. 2 is a topplan View of the same.

Fig. 3 is a longitudinal. vertical Central sectional view, taken through the machine. a

i Fig. 4 is a detailunder side plan view of r the cleaning and supportlng screen employed. i

Fig. 5 is a detail perspective view of one of thes-pouts V Referring toe the drawingsywherein like parts are designated by similarcharacters of reference throughout the several views, the

1 separator involving the features of this in vention comprises a main frame, which is sta;

. tionary and which. sup-ports the cleaning ,Qscreen ;1 a sifter which is movablein the main:

frame and has, a relatively fine meshsifting screen and a,, relatively coarse; mesh sifting Specification of Letters Patent.

Patented Mar. 26,1918.

- Application filed February-.2@1916 Serial No,8 Q,973

screemthe fine mesh screen bearing uponand beingsupported by the stationary coarse screen, a receivingshoeadaptedto spreadithe materials out over a broad surface to deliver the same to, the s fter throughout theentire width thereof; a fan on the main frame to produce a current of air against the coarse meshscreenof the sifter to separatethe gr ts from the bran or husk, and blow thelatter away from the end of the sifter; and

adjustable spouts beneath. the respective screens toreceive andconduct to the desired point of discharge the meal and the grits.

Themain frame of the separator is made up of a pair of spaced apart foot pieces 10 upon which rest'the lower ends of spaced 3 apart uprights 11 and 12, a pair of uprights being mounted on the footpiece at each end of the frame. The uprights l1 and 12 are braced in pairs by cross braces 13 and 14,

and 'areprovided with upper longitudinal at their inner: ends by across piece 19, which closes the innerend of the sifterf The sifter is substantially ten inches in depth and is supported in the main fra e uppn forward and rear pa rs of hangers 2Q p1voted at thelr upper end rto the upper bars 15 of themain aframe and at their lower ends to the sides of the boards ot the sifterhilt'will be noted that the outer pair of hangers is of greater length than the inner pair, so that the sifter is inclined in theframe, or has a drop at its outer end of substantially three or four inches. The upper endsof the hang ers are received in straps 21 securedhy'loolts .22 to the inner faces of the bars 15 91;" the 'main frame. Pivot pins 28 pass through the traps the upper ends of the hangers20,

and the bars 15 so aS to pivotally support the hangers and admit of the free swinging of the same. The lower ends of the hangers are received in straps 2e secured to the outer faces of the boards 18 by boltjs25s The lower ends of the hangers 20 engage in the straps and receive thereth'roughpivot pins 26. Thus, the sifter is free toswingupon the hanger 20. Thecross piece 19 is provided with a bracket plate 27 againstitsrear side to which is hingedja connecting. rod 28 terminating at its outer end in an eccenpulley on the upper end of an elevator 36 of any approved type adapted to raise grain which is placed in the inlet 37 and dis charge the grain through the spout 38 overhanging the inner end of the machine.

The sifter is provided with a meal screen 39, which is of relatively fine mesh, preferably what is known as 22 or 2 1 mesh. This screen 39 extends from the upper or inner end of the sifter toward the opposite end thereof substantially two-thirds of thelength of the sifter, and is supported approximately two inches below the upper edges of the side boards 18 upon cleats 40 and 40, which are secured in the frame of the sifter. It will thus be noted that this meal screen 39 slopes or inclines downwardly with the sifter, and

that as the eccentric 3O vibrates the Sifter, the material deposited upon the upper end of the meal screen will be fed by gravity downwardly thereover. From the lower end of the meal screen 39 extends a relatively coarse mesh grits screen all supported at its inner end upon the cleat 4031\nd. at is outer end on the cleat 12, and adapted to be raised by the position of the cleat to any desired height at its free end, so as to lie either in a horizontal plane, or to be raised to any desired height in order to back up or slacken the downward feeding of the material in the sifter. Beneath the meal screen 39 is a hopper 43, made of sheet metal, which extends inwardly from the cleats so and 40*, and from the sides 18, the hopper as tapering downwardly to a point beneath the Sifter and within the main frame, and terminating in an outlet 14:. let is placed a spout 45. As shown to advantage in Fig. 5, this spout comprises a bottom having upstanding flanges increasing in depth from the inner to the outer end of the spout. An attaching lip 16 upstands from the inner terminal ofthe spout 15, and is adapted for detachable sccurement by I means of screws 17, or the like, to the outer surface of the hopper 43. The outer end of the spout 45 is detachably connected by means of hooks 4.8 to the opposite side of the hopper 43, so as to discharge the con .tents from the outlet opening 44:, through the hopper and out through that side of the machine to which the enlarged end of the spout is directed. The spout 4L5 is adapted to be removed and reversed when it is desired to discharge the contents from the hop per 43 at the opposite side of the machine. The lower or outer end of the sifter is pro- Beneath the outhopper 4:9 is in the form of an inclined board projecting inwardly and downwardly from the cleat 4:2. The lower end of the hopper 49 terminates substantially: in'the plane of the lower edges of the sides 18, as at 51. A second spout 52 of substantially the same construction as shown inFig. 5, is arranged beneath this discharge end 51 to deliver the grits fromthe board 19 to either side of the machine. This spout 52 extends transverselyacross the lower end 51 and has theupper edge of its outer wall abutting the edges 51to thus catch the grits in the spout 52. The inner wall of the spout 52 is surmounted by a strip 50 which idel'lects the material in the hopper 49 down into the spout 52." An apron or deflector 53 rises between the sides 18 from the inner end of the discharge 5 l'to a blower casing 55 inwhich is placed a fan 56. This apron 53 is curved upwardly and outwardly, and terminates against the underside ofthe cleat 40. The fan 56 comprises a plurality of radial blades mounted on a shaft 57 traversing the casing 55, and having upon one outer end a pulley 58 to receive thereover a. belt 59 which passes over the large pulley 32 on the main shaft 31. The shaft 57 is mounted in bearings 60 secured to the upper edges of the lower longitudinal bars 16 of the main. frame. These bars 16 are also provided withupstanding attaching plates 61 slotted as at 62 near their upper ends to re ceive therethrough binding screws 63, orthe like, which lso engage the adjacent sides of the blower casing 55, to admit of the 'ver- .tical adjustment of the blower casing to impart a throw of substantially three-quarters of an inch to the sifter, so that the spout 52 must necessarily be so spaced from the discharge 54 as to admit of this reciprocating movement. y I

It is an important featureof this inventionto provide anovel means for cleaning the meal screen 39 without theprovision of knockers, or other devices requiring considerable mechanism and taking up considerable space in the machine. The cleaning means comprises a large mesh wire screen of substantially one half inch mesh, this cleaning screen 64- being mounted upon a frame 65 which is relatively light and adapted to receive the screen 64 over the upper side or edge thereof, as shown in Fig. 3. The frame 65 1s supported upon transverse rods 66 secured tothe side bars assess? m sh s een 6 1p a a ns t e meal scre n 39 to supp rt he mea e n nd a so to rub against the lower side thereof and keep the m a sc ee fr m l gging up, a d ke p it ee fr a c mula io a i supporting and cleaning screen is of large mesh so as not to interferewith the proper sitting of the meal to eitect the cleaning and c eari g of h m al s re n, 39 Withou und y vibrating er disp a ng th sam The cross bars 66. are received through longi di a ly rm s ot .67 n the side boards 18 of the sitter trame. The outer ends of the cross bars 66 are secured fixedly upon the longitudinal bars 68 secured at their opposite ends to the uprights 11 and 2, a le r y shown in Th he supporting and cleaning screen 64 is rigidly held from movement by the bars 66 and 68,

which are carried in; rigid relation upon the ma n ram The spout 38 of the elevator delivers the material into a shoe 69. The shoe 69 is the term of shallow tray substantially three inches in depth and 0t alength equal to about one third of the totallength otthe sitter. The shoe is suitably attached by screws '70, or the like, tothe sitter, so as. to vibrate therewith, --This receiving tray or shoe is of a width equal to the width of the sitter and has an upper receiving compartment provided with an imperforate bottom 71 extending downwardly a distance of 7 about eight inches and terminating at its lower edge in a transverse spreader 72 in the form of a strip, substantially one inch square in cross section and projecting upwardly from the bottom 71 to check the downward flow of the material, and also to spread the material over the entire width of the shoe. Thus, the material is fed down through the shoe in a relatively broad stream or sheet. The lower end of the shoe, which may be substantially two feet long, is provided with a bottom formed of a coarse screen 73 of substantially eight mesh adapted to separate the bran and other relatively large light material from the grits and the meal,

as the same are sifted throughthe screen 73 onto the main screen of the sitter. These accumulations in the shoe fall downwardly over the screen 73 and against the lower wall 74 ot the shoe, which lower wall defleets the collected material into a laterally extending spout 75 carried by the shoe, so as to throw oft the rough,or first separated, material. r i a The main shaft 31 is supported in double bearings 76 carried upon the upper edges of bracket arms 77', projecting rearwardly from the uprights l2 and being secured thereto by means of bracket plates 78 of angle form and which are preferably arranged above and below the bracket arms I 6577, as clearly shown in Fig. 1.

rator, material is depositednpon the upper and 0f h hoe in y u ta e m n r, such as bymeans of the elevator 36, as shown in Fig. 1. The material issues from the spout 33 andtalls upon the upper end of the shoe or tray and upon the impertorate bottom 71. The material banks up against the spreader strip 7 2 and is spread over the ens tire width of the shoe and flows over the 75 upper edge of the spreader strip in a broad fiat stream orfsheet, As the shaft 31 retates, the sitter is vibrated, and consequently the shoe which is carried upon the sitter is als vibrated. The material thus settles downwardly in the shoe over the screen 73 and the large coarse particles of the material are retained by the screen, and collect against the lower wall 74 and are discharged laterally through the spout 75. The bulk of the material, however, passes down through the coarse screen 73 and falls upon the main screen 39, which comprises the meal screen. As the material has-been spread out by the strip 72, it is deposited over the entire width of the shoe and the meal screen 39. Thus, the vibrations of the sitter cause the material to settle and feed by gravity downwardly and slowly over the upper face of the screen39. The fine mate-' rial, or meal,sitts through this screen 39. The screen 39 is prevented from being clogged by this fine material, by the rela tively stationary supporting and cleaning gages, beneath the meal screen 39, and produces the same action upon the meal screen 39 as does the hand in rubbing beneath a sieve to vibrate and clean the same. Thus,

the screen 64 not only serves to reinforce and support the meal screen, but it also cleanses the meal screen and' prevents the same from clogging up, or accumulations from gathering upon or within the meshes of the meal screen.

The fine particles, or meal sifting through the screen 39, feeds into the hopper 43 and by vibration of the sitter, is fed into the discharge opening 44, and into the spout 45, from which the meal is discharged or delivered from either side of the separator. During the rotation of this shaft 31, the belt 59 turns the blower 56 and as a result, a blast of air is emitted from the discharge end 54 of the blower, and is deflected by the apron 53 into the top of the hopper 49 beneath the grits screen 41. The air is forced upwardly through the grits screen and thoroughly agitates the material which has gravitated 52. The spout 52 may be directed to either side of the machine, so as to deposit the grits into any suitable receptacle or place. The air current blows the bran or husk outwardly from the end of the sifter, the material falling on the ground, or into any suitable large receptacle that may be provided for conveniently carrying oil the bran or husk.

The main shaft 31 may be driven in any suitable manner, and in the present instance is shown as being driven by the belt 34 from the large pulley 35 of the elevator 36.

It is, of course, understood that material variations and changes may be made in the size, proportion, and material resorted to in the present construction of the separator, as abovedescribed, Without departing from the spirit of the invention, and being limited only by the scope of the following claims.

What is claimed is v 1. In a separator, a reciprocatory sifting screen of relatively fine mesh material, and a stationary relatively coarse -mesh wire screen mounted immediately beneath and in frictional contact with the first screen to cleanse it, said second screen being of a width substantially that of the first screen and of a length so much less than that of the first screen to provide clearance for reciprocation ofthe first screen, whereby the second-named screen constitutes a support for the first-named screen throughout. practically its whole extent.

' 2. In a separator, a reciprocatory sifting screen of relatively fine mesh material, and

a stationary relatively coarse-mesh wire screen mounted immediately beneath and in frictional contact with the first screen to cleanse it, said second screen being of a Width substantially that of the first screen and of a length so much less than that of end and at the lower end provided with a coarse mesh continuation participating in the reciprocatory movements of the screen.

3. In a separator, a reciprocatory sifting screen of relatively fine mesh material, and a stationary screen of relatively coarse-mesh Wire mounted immediately beneath and in frictional contact with the first screen to cleanse it and constitute a support therefor.

4. In a separator, a reciprocatory sifter screen and a receiving shoe at and overhanging the receiving end of the sifter screen and having at one end an imperforate bottonr and at the other end a bottom formed of coarse mesh screen meeting the imperforate bottom, with the shoe there provided with a spreader strip extending crosswise of the shoe and rising from the bottom.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signa- V ture in the presence of two witnesses.

JULIUS SIDNEY JORDAN.

Witnesses:

ROBERT C. JONES, B. K. SANDERS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patentn,

Washington, D. G." l

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