US576990A - barnes - Google Patents

Description

(No Model.) 2 sheets-sneet 1.

v"'S. BARNES.

GRAIN SEPARATOR AND GRADER.

N0.576,99o. D PatentedPeb.9,1897.

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GRAIN SEPARATOR AND GRADBR.

YNo. 576,990.

Patented Feb. 9, 1897.

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UNITED STATES PATENT OEEICE SAMUEL BARNES, OF LOVELAND, COLORADO, ASSIGNOR OF ONE-HALF TO DAVID BARNES, OF SAME PLACE.

`GRAIN SEPARATOR AND GRADER.

SPECIFICATION forming part of Letters Patent No. 576,990, dated February 9, 1897.

` Application filed May 5,1896. .Serial No. 590,360. (No moclell To a/ZZ whom it may concern:

Be it known that I, SAMUEL BARNES, a citizen of the United States of America, residing at Loveland, in t-he county of Larimer and State of Colorado, have invented certain new and useful Improvements in Grain Separators and Graders; and I do declare the following to be a full, clear, and exact description of the invention, suchaswill enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in grain-separators specially adapted for separating oats (both common .and wild) from wheat and other grains; and to this end the invention consists of the features, arrangements, and combinations hereinafter de` scribed and claimed, all of which will be fully understood by reference to the accompanying drawings, in which is illustrated an embodiment thereof.

In the drawings, Figure l is a side elevation of the machine. Fig. 2 is a top or plan view of the same. Fig. 3 is a fragmentary top view with the table removed to show the mechanism underneath. Fig. 4L is a similar View with the table in place. Fig. 5 is a section taken on Vthe line x x, Fig. 4. Fig. 6 is a section taken on the line 'y y, Fig. et. Fig. 7 is a detail of construction, the parts being shown on a larger scale. Fig. 8 is a section taken through the worm-shaft on the line e z, Fig. 3. Fig. 9 is a section taken through the lower edge ofthe apron to illustrate-the flap protecting the lower propelling-chain.

Similar reference-characters indicating corresponding parts in the views, let the `numeral 5 designate a suitable frame upon which is mounted an inclined table 6, surrounded by an endless apron 7, propelled by drums 8, journaled inthe frame. This apron consists of a blanket composed of fibrous fabric or any other suitable material to which the oats will adhere. The apron has a movement in a direction at right angles to the inclination of the table. The tables inclination is preferably at an angle of about forty-five degrees.

' Attached to the frame and projecting a short distance above the apron are two parallel bars 9, suitably separated. To the bars 9 are attached slats l2. The extremities of the slats are made fast to the bars. To the slats are attached flaps 10, composed of some suitable {iexible 'materiaL tremities of the liaps engage the top of the apron. The flaps and their supporting-slats preferably occupy a diagonal position with reference to the aprons movement. The movement of the apron is in the direction indicated by the arrows. (See Fig. l.)

The grain to be treated is fed. upon the upper left-hand corner of the apron farther to the right, (referring to Fig. 1.) As the apron moves forward, or in the direction indicated by the arrows, the wheat, which is heavier, rolls downward in a direction transverse to theapronls movement, passes under the flaps lO, and finally falls from the lower edge of the apron into a suitable receptacle 30. The oats naturally cling to the apron, but if it were not for the flaps the wheat would carry some oats downward with it and prevent the obtaining of the most satisfactory results. Hence while the flaps allow the wheat to pass under them they cause the oats to cling more tenaciously to the apron, and thus prevent any oats from escaping with the wheat which falls from that part of the apron engaged by the aps. These flaps engage the greater portion of the aprons upper surface. Let A designate said portion, and B the portion of the apron forward or beyond the flaps. The wheat which falls from the part A of the apron is free from oats. Some wheat, however, passes to the part B of the apron and would be carried over with the tailings were it not for the agitating devices placed on top of the table and located between the Hap-supporting frame and the forward end drum. These devices consist of two slats 13 and 14, located beneath the apron and occupying a position transverse to the aprons movement. The upper extremities of these slats are fastened to the table or to the framework, while their lower extremities are free and project slightly beyond the lower edge of the table.

Beneath thetable and fulcrumed on the The lower ex- IOO frame at 15 is a lever 1G, whose upper extremity isY engaged'by a double cam 17. To the lower extremity of thisvlever is attached an upwardly-projecting pin 18, adapted to engage the lower extremity of the agitator 13. The pin 1S passes through a stop 19. Between this stop and the end of the lever is located a coil-spring 20. As the cam 17 depresses the upper extremity of the lever 16 the lower end of said lever is raised, thus bringing the upper end of the pin 1S in contact with the agitator 18. This movement of the lever compresses the spring, and as soon as the cam releases the upper end of the lever the recoil of the spring returns the lever to its normal position. The slat 14 is actuated through the intervention of a short lever 2-1, ffulcrumed at 22. One end this lever 21 occupies: a position below and in contact with the-lower extremity of the lever 16, while its opposite extremity engages the lower extremity of the agitating-slat 14. As the lower extremity of the lever 1G moves downward under the influence of the spring, as heretofore explained, it throws the opposite eX- tremity of the lever 2l upward and moves the'agitating-slat 14 accordingly. Thus the two slats 13 and 14 are alternately raised and lowered underneath and in contact with the movingapron. In this manner the part B of the apron is kept in suoli a state of vibration that the wheat which has been carried forward beyond the flaps 12 is made to roll downward into' an auxiliary receptacle 23. This vibration, caused by the agitating devices, causessome oats also to leave the apron with the wheat. I-Ience the contents of the auxiliary receptacle are returned via a carrier 24 and discharged into'the supply-bin 25 for retreatment. The grain to be cleaned or separated from the oats is originally discharged intotheA bin 25 and carried thence via an elevator 26and discharged intoI the hopper 27 via' a` chute 2S. From thence it is fed'to the apronthrough the instrumentality of a suitable feed-roll 29.

The portion of the machine nearest the top ofthe sheet in Fig. 2 may be designated the rear. Bearing this in mind the grain, when it leaves the hopper, is discharged upon that portion of the apron passing over the upper left-hand corner of the table farther to the rear.

The power for propelling the machine may be obtained from any suitable motor. As shown-in the drawings, a belt 31 leads from the motor to a pulley 32 on a shaft 33. A sprocket-wheel on the shaft is connected by means of a chain 34 with another sprocket on a shaft 35. This last-named shaft carries a worm 3G, engaging a gear 87, fast on the upper journal ofl the forward drum S. The drums 8 carry sprockets 39, which are engaged by thel chains 88, attached to the edges of the apron. The lower chain is concealed by'a flapV 7 attached to the apron te prevent the chain from interfering with the grain as it falls into the receptacles 30 and 23. I'Ience the apron is slowly propelled through the instrumentality of the worm-gear. A crossed belt 40 connects a pulley on the shaft 33 with another pulley on a shaft 41. This lastnamed shaft) carries a gear 42, meshing with another gear 43 on the journal of the feed roller 29. A belt 44 connects a pulley on the shaft 33 with another pulley on the upper journal of the elevator 2G. The carrier 24 is propelled by means of a belt 45 leading from a pulley on the shaft 33 to a pulley 46 on one journal of the elevator.

Underneath the endless apron is a reel 47, suitably journaled in the stationary frame. The slats 47n of this reel engage the apron underneath and remove all the oats which adhere thereto. There is a bevel-gear connection 49 between the shaft 33 and the shaft 47 c of the reel for operating the latter.

My improved :machine is a grader as well as a separator, since all the crackedvkernels, as well as those that are shrunken and worthless for any reason, are carriedover by the apron and discharged with the tailings, since they are not of sufficient specific gravity't'o cause them to roll down under the flaps 10 into the receptacle 30.

Having thus described my invention, what I claim is- 1. In a grain-separator, the combination with a suitable frame, of an inclined'table mounted thereon, the drums journaled in the frame at the ends of the table,` an endless apron surrounding the table and engaging the drums, said apron having amovement transverse to the inclination of the table, flaps supported above and engaging the apron and occupying adiagonal position with reference to its direction of movement, an agitating device supported on the table underneath the apron, said device being located between the iiaps and the forwardend drum, means for feeding the grainv to the apron, and means for propelling the latter, substantially as described.

2. In a grain-separator, the combination with a suitable frame, of an inclined table mounted thereon, an endless apron surrounding the table, means for propelling the apron `in a direction at right angles to the inclination of the table, the flaps suitably supported above and engaging the apron, an agitating device supported on the table underneath the apron, said device being located between the iiaps and the forward end drum, the reelunderneath the apron, and suitable meansy for feeding the grain to the apron,` substantially as described.

3. In a grain-separator, the combination with a suitable frame, of the inclined table sup- IOO IIO

ported thereon, an endless apron surrounding the table, means for propelling-'the apron in a direction at right angles to the inclination of the table, the flaps supported above and engaging the apron, andan agitating device supported on the table underneath the apron, said device being located between the flaps and the forward end drum, substantially as described.

4. In a grain-separator, the combination with a suitable frame, of the inclined table mounted thereomthe endless apron surrounding the table, means for propelling the apron in a direction at right angles to the inclination of the table, an agitating device supported on top of the table and underneath A the apron, the upper extremity of said device being made fast while its lower extremity is loose, and means for actuating said device,

. comprising a lever fnlcrumed on the frame,

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