US1617246A - Grain separator - Google Patents

Description

Feb. 8 1927.

H. o. FREEMAN GRAIN sEPARAToR Filed Jan.16, 1926 Y i'NvENToR HQI/'66mm ATroRNEYS Patented Feb. 3, 1927.

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HENRY o. FREEMAN, or EDEN, rnAHo.

GRAIN SEFARATOR.

application nea January 16,1926. serial unerase breaking up masses of straw, grain and chaff as lsuch masses inove across-the Vseparator floor or table -and for causing the straw,

F chaff and grain to'fall vertically at intervals during their passage across the' separatorV floor or table,whereby practically all the is aV relatively enlarged fragmentary transverse vertical sectional view ofV a portionof the grain separator. v

Figure 3 is a fragmentary perspective view of one of the sections of the main sepa rator floor. j

. Thejsupporting; structure of the separator may comprise side walls such as indi'- cated at 1. While l show Vonly .one iside wall 1, it will be understood that in practice a pair of theiside wallsv 1 may bevprovided and disposed in spaced parallel relation. An upper separator floor generallyindicated at 2 extends between .the side walls 1. This upperr separator floor comprises a plurality of juxtaposed longitudinal sections, each of which is substantially U-shaped in cross sectional contour.l y

VThese sections,3are arranged in a series which extend transversely ofthe supporting structure or body of the separator 'so that theouter-.flanges offthelsections that are next ,togthe side members 1 l'are disposed fla-twise against attaching and reinforcing bars ll, which' are., rigidly secured to the'sidewalls 1. 'gFasteningdevices, suchas indicated at Y s ecure'the outenflanges of the outer sections 3 tothe reinforcing bars The sections?)v between the outer sections 3 are relatively ar ranged .so that the adjacent flanges of adjacent grain will be detached from andy separatedy sections 3 are in closecontact with eachother throughout their length andare fastened to- Y gether by suitable fastening devices such asindicated at 6. The web portions of the res'pecfk 60 tive sections 3 thus will be disposed at the samej Y level; The web portions of these sections l3 are curved arcuately transversely thereof, the,v concavely curved'surface thereof being upr-rv permost. These web portions of thesections 3 are imperforate from their front ends forA a short distance asV indicated at Tand are cut away at S' fora short distance from ythe rear ends of thefse'ctions '3J YThe portion of the web of each section 3 that extends ,be-v tween the imperforate end portion 7 andthe cutaway portion 8 is formed with a longitudinally extending` series of spaced apertures 9. These apertures are located along the longitudinal median line of the web l5 port-ion of Veach section 35 and each opening 9 is produced by striking adjacent portions of v the web of each section 3 up-v wardly and rearwardly at the front edge of each of the openings in the web of the section 3 and downwardly and forwardlyat the rear edge of the same opening in the web por'- tion of the section 3, thu'sproducing the up,- wardlyV and rearwardly inclinedv tongues .10.,

at the front edges of theopenings 9 and the 8 downwardly and forwardly inclined tongues 11 at/the rear edges of the openings 9.

y The flanges of each lsection 3 are symmetrically formed and each flange has relatively:

deep notches'412 cut therein at, regularly.90

liange.Y The front wall of each notch 12 isv substantially vertical as clearly shownin Figure 1. The portionsof the v'flanges ofl .spaced intervals along 'the ylength ofthe each section 3`which extend betweenladj acent 95 notches 12 have the edge portions thereof fashioned to incline 'rearwardly and `upwardf,l ly from'eachnotch 12Vtov the vertical wall of the notchl2 next at the rear thereof and these inclined edge portions` ofthe fiangesoffeach section k3 have spaced notches'13-p`roduced therein, the front wall of eachnotch 13 being vertical V andthe other ,wall of each notch 13 being inclined upwardly and' rearwardly. The respectivelnotches 13 are. the same depth and it thus will be manifest that the respec- V tive notches 13 whichare located between a-d, jacent notches 12 willbe located `at different levels, the bottomof each notch v13 other than the first lnotch, 13 of a series being located at'v a slightlyjjhigherelevel thanuthe preceding notchlf13.` i .y j f,

no' Y A secondary separator floor indicated generally at 14 may be supported between the side members 1 of the supporting structure of the device underneath the main separator floor 2. The secondary separator floor 1a comprises a series of channel-shaped longitudinal sections 15. The flangesof the side sections 15 are attached, as at 16 to attachingand reinforcing bars 17 which in turn are secured to the side walls 1 and adjacent flanges of adjacent sections 15 are secured together by fastening devices 1S. The front end portion of the bottom or web portion of eachsection 15 is imperforate for a short distance asindicated at 19in Figure 1 and the.

l from the front edge of each opening 21. The

flanges of each section 15 have notches 2li formed therein7 the front Vwall of veach notch 21being substantially vertical and the rear 'wall of each notch 2st being inclined upwardly and rearwardly as clearly shown in Figure 1.

'A screen 25 may be supported underneath the separator Hoor 141 r-earwardly of the imperforate portions 19 o'f the bottoms of the sections 15 and .forwardly fof the cut away portions 2O of the bodies of theV sections 15 of said separator floor.` A delivery chute 26 having a forwardly Vand Ydownwardly inclined bottom 27 may be supported underneath the screen and a blower fan 28 may be supported in a housing 29 having a discharge out-let 30 from which air may be blown underneath the screen 25 andupwardly through the latter. The details of construction Vof the partswhich' are associated with the separator floors 14 and 2 may vary considerably from those illustrated wit-hout departing from the spiritand scope ofthe invention as will hereinaften more clearly appear.

The operation of the `device is substantially as follows A mass ofv grain, straw and cha is discharged in any suitable known manner on y the separatory floor 2. The Y serrated Y and by any suitable known inea-ns, none being shown, onto the Vforward end portion of the separator door 2 and 1s movedrearwardly edges `of the flanges of the channel-shaped sections of theV separator 'floor 2 will support the mass of strawfchaif and grain and will break up suoli mass since it vwill be obvious that as the mass progresses toward the rearward end of the floor 2,cons1derable vertical movement ofthe mass or particles thereof will take place as particles ofthe mass thereof so that all grain falling onto the bottoms of said sections will slideV toward and through the openings 9. rlhe upwardly and rearwardly inclined tongues 10 obstruct the forward moven'ient of the grain and guide the kgrain through the v'openings V9. A'The downwardly and forwardly inclined tongues 11 deflect blasts of air from the fan 28 upwardly through the openings 9 so that such blasts of air will not only-aid in .separatthe grain'from the chaff but will aid in breaking up the mass of straw and chaffv on the flanges of the sections 3 and will cause such mass to ride along the edges of the flanges of the sections 8. Also, the air currents which pass upwardly and rearwardly through the openings 9 will prevent any dust from falling through the openings and the grain thus will be cleaned. The imperforate forward Vend portions 7 of the bot-A toms of the sections 3 of the main separator floor extend forwardly of the front 'end'V of the screen 25 so that the separation of grain pass therethrough and to fall into the delivery chute 26. Any unthresheclor whole heads or pods of grain which reach the rearward end portions of the-sections 3 will fall through theaperturesS. A return chute '81 for such unthreshed heads or pods of grain may be provided. i

The Yseparating action of thesecondary floor 14 is substantially the same as that of` the fioor 2 and the purpose of the floor 14 isto supplement the action of theseparator floor 2. The sections 15 ofjthe secondary separator floor are of less width than the sections -of the main separator floor. Grain which falls through the openings 9' in Vthe bottoms of the sections ofthe main separ tor fioor onto the secondary separator floor will pass freely through the openings in the bottomsof thesections of the secondary floor and the secondary separator' Hoor will effect an additional separationof the grain from any chaff which may pass through the openings 9 of the main separator floor with the grain.V Unt-hreshed heads or pods which SFr fallk through the cut away portions 8 of the Y sections of the main separator floor` will fall through the openings 20 .in the rearward Vend' portions of the sections of the secondary floor into the return chute or trough 3l.

It of course will be understood that the openings in the bottoms of the sections of the separator floors may be of any suitable size and that the lsections may be of desirable widths. For example, lthe sections and the openings in the bottoms thereof can be relatively narrow when designed for use to effect the separation of clover seeds from the straw and chaff and would be relatively wide when designed for use as a separator for beans. n

Obviously, the invention is susceptible of embodiment in forms other than that which is illustrated in the accompanying drawing and I therefore consider as my own Vall such ymodifications and adaptations thereof as fairly fall within the scope of the appended claims.

I claim l. In a separator, a i'oor comprising a plurality of juxtaposed channel-shaped sections disposed with the fianges thereof turned upward and having spaced openings in the bottoms thereof, .the upper faces of the bottoms of said sections beingconeavely curved transversely thereof and said openings being located along the longitudinal median lines of said bottoms.

'2. In a separator floor, a substantially U- shaped horizontal section disposed with the flanges thereof turned upward, the bottom of said section having spaced openings formed a downwardly and forwardly extending tongue at the rear edge of each opening, said tongues having eonvexly curved edges, theV Y lianges of said section having notches in the f edges thereof.

.4. vIn a separator floor, an elongated sec-v tion substantially U-shaped in cross section, the bottom of said section havingl the upper face there-of concavely curved transversely thereof and having spaced openings formed therein along the longitudinal median line Y thereof and having an upwardly and rearwardly inclined tongue at the front edge of each of said openings and a downwardly and forwardly extending tongue at they rear edge of each opening, the flanges of said section having notches in the edges thereof, the bottom of said section being imperforate forl a short distance from the forward end thereof the rearward end thereof.` Y

5. In a separator floor, an elongated section substantially U-shaped'in cross section, said section having spaced openings in the bottom thereof, the flanges of said section having spaced relatively 'deep notches in the edges thereof and having series of spaced notches of less depth in the edges thereofbetween adjacent relatively deep notches, the

notched portions of the sections between adjacent relatively deep notches being inclined so that the respective second named notches i y between adjacent relatively deep notches areA and being `cut away for a short. distance from f located at different levels, each of said relatively deep notches andA each of said more shallow notches having an inclined edge and a substantially vertical edge, all of said inf clinedfedges being parallel and all of said substantially vertical edges being parallel.

6.v In a separator floor, an elongated section substantially U-shaped in cross section and having openings in the bottom thereof spaced longitudinally 'of Vthe section, the

flanges of said lsection having spaced relatively deep notches formed therein, each of said notches having a substantially vertical edge and also another edge Vregularly iiiclined for its entire length and extending from the base of the substantially vertical edge of one notchto the topV of thesubstantially vertical edge of an adjacent notch, said j inclined edges having regularly'space'd relatively shallow notches formed therein, each yof said relatively shallow notches having an inclined edge parallel with the 'inclined edges ofthe deeper notches and a substan-v tially vertical edge parallel with the substantially vertical edges of the deeper notches:

l FHENRYZO. FREEMAN.

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