US1500522A - Grain separator - Google Patents

Description

GRAIN sEPARATon Filed June?. 1923 2 Sheets-Sheet l mwnomwnuoooonaooeauooomooozaoco o /Z GRAIN SEPARATOR Filed June 2, 1923 2 Sheets-Sheet 2 Patented .luly 8, 1924.

MMZZ* 'I' t? t' I t GRAIN SEPARATOR.

Application AlednJune 2, 1923. Serial No. 643,043;

To @ZZ/whom it may concern lBe it known that I, LEON DrOBERT, a citizen of the United States of America, residing at Underwood, in the county of Otter Tail and Stat-e of Minnesota, have invented certain new and useful Improvements in Grain Separatore; and I do hereby declare that the following is a full, clear, concise, and exact description of the invention, such as will enable others skilled inthe art to which it appertains to make and use the same. i

Ihis invention relates to improvements in grain separators, having for an object to provide a rotary grain separator, especially advantageous for use in separating wheat and like grains fromoats, wheat seeds, sand and dirt, and delivering the grainso sepa- Iqatedby discharge means into a suitable rec eptacle.l It is also anobj ect of the invention to provide al'rotary grain separator employing a novel form of rotatable separator cylinder having internal mea-ns for receiving and removingV the grains of wheat fromthe bulk of matter discharged thereinto for separation and conveying the same away` from such bull; and discharging it at a predetermined point of its rotary pathoftravel into a dischargeway leading from the separator. It is a further aim of the invention to `prof vide a rotary separator wherein means are utilized for agitating the matter discharged thereinto for 'separation in order that the sainewill be evenly distributed throughout the separator cylinder and the lighter grain, such `oats and othermatter caused to'pass therefrom, lthus leaving only heavier matter for separation by the cylinder. l Other objects will be in part obvious and in part pointed out hereinafter. i

'V'Icniorder` that the invention and its inode of operation may be readily understood by persons skilled in the art, I havein the s acc 'o'mpanyin'gl illustrative drawings, and in the detailed: following description based thereon, set,V out one possible embodiment of the same.

i In these drawings:

Figure l is .aside elevation of the improvedv rotary grain separator;y Y

Figure 2 is a vertical longitudinal section hfeueli.thaseparator;

Figure 3 is a vertical transverse section taken on the line 3-3 of Figure 1 looking in the direction in which the arrow points `;v

Figure 4 is an enlarged vertical transverse section taken on the line 4 4 of the Figure 1 looking in the direction in which the arrow points; and,

Figure 5 is an enlarged fragmentary detail in section showing the manner in which the wheat receiving and conveying pockets are formed in the internal face of the cylindrical separator shell.

Having more particular reference to the drawings, in connection with which like characters of reference will designate corresponding parts throughout, the improved separator may be stated'to comprise a cylindrical separator shellindicatedin its entirety by the numeral l and. hereinafter referred to for convenience as the Vvseparator cylinder, such separator cylinder being mounted for rot-ary movement in a horizontal plane upon roller bearings 2 rotatably mounted' in the bearing bracket 'Y provided therefor by means of standards generally indicated by the numeral 3, such roller bearings, as shown in the Figure l, being engaged in circumferentially disposed rings or circular tracks 4 disposed about theopposite end portions of the separato-r cylinder; preferably four of these roller bearings 2 with their respective standards 3 being employed and arranged upon the opposite sides and adjacent the opposite ends of the separator cylinder,

In order that rotary motionmay'be transmitted to the separator cylinder, a. gear ring 5 is arranged about the intermediate portionA of such cylinder and is adapted to have the teeth thereof mesh with a driving pinion 6 mounted upon the inner end ofa longitudinally disposed shaft 7 mounted in bearings 8 beneath the separatorcylinder 1*; a fric'- tional gear being carried upon the-outer end of the 'shaft 7 and receiving belt gearing 9 thereabout for a purpose which will, be hereinafter more-fully described",l while suitable driving means, notshown,I is connected to the frictional gear orto the shaft 7. In this connection, it is to be understood that the driving means, not shown, may be provided with variable feed power transmitting mechanism or various other forms of mechanical devices, common in the art, in order -that the separator cylinder may be selectively rotated at that speed most eficient to its separation operation.

The inner or intei'nal face of the separator cylinder 1 has a plurality of sets oi' pockets generally indicated by the numerals and 11 tormed therein, such sets or groups 'of pockets each covering approximately one-half of the internal area of the cylinder and extending to its intermediate portion from its opposite end as clearly shown in the Figure 2; such groups of pockets being of different sizes, whereby, as illustration, the pockets 10 will serve to receive wheat seed, sand and dirt from the bulkv of matter discharged into the separator for separation, while the pockets 11 are of sizes suliicient to receive the larger wheat grains or other grains to be separated trom such bulk.

Disposed longitudinally of and extending through the lower portion of the separator cylinder 1 is a shaft 12 having plurality or series of radially disposed agitating blades 13 xedly mounted thereon, the opposite ends of the shaft 12 being received in suitable bearings 14 positioned externally of and adjacent the opposite ends of the separator cylinder, one end of the shaft 12 having a frictional gear thereon adapted to receive the belt gearing 9 thereabout in order that rotary motion may be transmitted to the agitating arms or blades 13 from the shaft 7 With a view towards providing means for causing the discharge of matter to be separated into the separator cylinder 1, a discharge chute 15 is mounted upon a supporting structureV generally indicated by the numeral 16 and, asshown in the Figures 1 and 2, is inclined downwardly and extends `into one end of the rotatable separator cylinder adjacent those groups of openings indicated by the numeral 10. Thus, the bulk of matter to be separated, when discharged into the separator cylinder will first be engaged with the smaller group ot pockets 10 and in consequence, the smaller material such as wheat seed, dirt, sand, et cetera will be received in said pockets, whereas the larger particles of the matter, namely, the wheat kernels will be caused to pass over said smaller group ot openings until the same reach and are received in the larger group of openings or pockets 11.

Oppositely disposed inclined discharge chutes 17 and 18 are arranged longitudinally and internally of the upper portion of the separator cylinder 1, their inner ends being at a point adjacent the meet-ing of the several groups of pockets 10 and 11, while the outer portions thereof are supported upon the structures indicated by the numeral 16 and l 18, `.this latter y supporting structure also serving as a supporting means for a downwardly inclined dischargedchute 19 extending to a point adjacent and communicating with the opposite ends ofr the separator cylinder 1 in order that the lighter grains and matter, such as wild oats and the like, may be conveyed from the separator cylinder during its rotation;

The operation of my improved grain sepa- Vrator may be reviewed as follows:

The separator cylinder 1 is rotate-d at the desired speed or velocity by means of the driving shaft 7 having its pinion 6 meshing with the ring gear 5 disposedV about the intermediate portion of the separator drum periphery, such cylinder being supported in its rotary movement upon the various roller bearings 2 carried in the upper ends of their respective standards 3. Matter to be separated is placed upon tliechute 15 an-d caused to discharge into that end of the separator cylinder communicating therewith. The matter to be separated upon contacting with the internal face of the cylinder will be distributed thereover by means of the radially disposed agitator blades or arm 13, the smaller particles, grains, or seeds passing'into the smaller group of pockets 10, while the larger grains, such as wheat or the like, are advanced over the smaller group of pocketslO and caused to move onto that internal area of the separator cylinder 1 provided with the larger group of pockets `11. At lthis time, the larger grains, namely the wheat kernels, are received in the pockets 11. VBecause of the rotary movement of the separator cylinder 1, the smaller grains, seeds, dirt or sand and the wheat kernelswill be carried in the groups of pockets 10 and 11 respectively, unt-il they drop by gravity from such pockets into the receiving chute therefor, the'smaller particles, such as seeds,'dirt or sand passing from the pockets 10 into the discharge chute'17, lwhile the grains ofwli'eat are -discharged from the larger grouprof pocket-s 11 into the discharge chute 18. From these several chutes, the matter so separated may be delivered into lsuitable receptacles, not shown. The lighterfinaterial from the bulk of matter discharged for separation into the separator cylinder will, because of its lighter weight, workl upwardlynand by reason of the constantly rotating agitator arms 13, Vwill be advanced longitudinally through the separatorV cylinder and discharged trom its opposite end into the inclined chute 19. These 'lighter particles, as will be understood, may be in form of chaff, wild oats, et Vcetera;V

Manifestly, the construction' shown vvis capable of considerable modicationand such modification as iswithin thescope of my claims, I consider lwithinthe spirit of my invention. Y i Y r l claim :r 1

l. A rotary separator comprisinga rotatable separator cylinder having groups of pockets of different size formed upon its internal face, oppositely inclined chutes extending through and arranged adjacent the upper portion of said cylinder for receiving and discharging matter delivered thereto from said groups of pockets from the cylinder, agitating means arranged in said separator cylinder in proximity to its lower portion, a delivery chute extending into one end of the cylinder adjacent the smaller group of pockets, and a discharge chute extending from the opposite end of said cylinder adjacent the larger group of pockets.

2. A rotary separator comprising a rotas table separator cylinder having groups of pockets of different size formed upon its internal face, oppositely inclined chutes extending longitudinally of and arranged in the upper portion of said cylinder for receiving and discharging matter delivered thereto from said groups of pockets from the cylinder, a shaft mounted in bearings and extending longitudinally through the lower portion of said cylinder, a plurality of agitating means carried on said shaft, a common means for imparting rotary motion to said cylinder and shaft, oppositely inclined chutes extending longitudinally through the upper portion of said cylinder having their adjacent ends meeting at a point adjacent the meeting of the several groups of pockets in the internal face of the cylinder for receiving and discharging matter delivered thereto from said groups of pockets Jfrom the cylinder, a delivery chute extending into one end of the cylinder adjacent the smaller group of pockets and a discharge chute extending from the opposite end of the cylinder adjacent the larger group of pockets.

In Witness whereof I have hereunto set my hand.

LEON D. OBERT.

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