US1306870A - Grain-separator - Google Patents

Description

T. C. VAUGHN.

GRAIN SEPARATOR.

,APPLICATION FILED AUG-28.1916.

Patented June 17, 1919.

ere t TIMOTHY. c. VAUG N, or monrtrs minivnsora, 'nssrs n'on 'ro VAUGHN MANUFACTURE J 'rne coMrAnY, or 1v onRIs, 1uI1vi TnsoTA,1'A conroaar oixr or MINNEso'rA.

To all whom it may concern 1 1 Be it known that I, TIMOTHY G. VAUGHN, a citizenofthe United States,residing at Morris, inthe county of Stevens and State of Minnesota, have invented certain new and usefulflmprovements in Grain-Separators; and I do hereby declare the following to be a full,'clear, and, exact description of the invention, such as will enable others skilled in the art to which it appertains to, make and use the same. a

My invention relates to grain separators and is in the nature of an improvement on my prior United [States Letters Patent, Number 914,997, issued tome March, 9, 19 09, and entitled Grain separator]? To t-he; above end, he invention consists of the novel devices and combinations; of devices hereinafter described and defined in; theclaims. M V a w In the accompanying drawings, which illustrate the invention,;like, characters indicate like parts throughout the several views.

Referring to the drawings, 1

Figure 1 is a view of thexinvention in longitudinal central section;

Fig. 2 is a fragmentaryplan view of the. separating apron and frame therefor. re: '1

moved from the machine; and

Fig. 3 is a transverse vertical section taken on the line 33 of Fig. 2.

The frame 1 of the machine supports a hopper 2, having in its bottom a feed opening with a feed roller 3 journaled therebelow. A vibratory shoe 4 is suspended by links 5 from the side members of the hopper 2 and, as shown, carries upper and lower sieves 6 and 7 respectively. Materials in the hopper 2 to be separated are evenly distributed by the feed roller 3 over the full width of the screen 6. Suspended from the shoe 4:, are two pans 8 and 9. Foul seeds, dirt, etc., screened through the sieves 6 and 7, are caught in the pan 8 and deposited at one side of the machine. Grain, wild oats and other materials carried over the sieves 6 and 7 are caught in the pan 9 and precipitated thereby onto the inclined upwardly moving surface of a separating apron 10.

The separating apron 10 runs over upper and lower rollers 11 and 12, respectively. The shaft 13 of the upper roller 11 is journaled in bearings 14 secured to the rear leg of the frame 1. A pair of side boards 15 is located at the ends of the rollers 11 eRAIn-sErARAToR."

Specifieationof Letters Patent.

' Malaria filed aug st .28, 1916. 1 .Serial No. 117,234.

and 12, above the shafts thereof. The shaft 16 for the roller 12- is journaled inadjustable bearings 17 secured to the lower edges of the side boards .15 and at the lower ends thereof. .Bearinglugs 18 pivotally connect the side boards 15 to the shaft 13 for vertical swinging movement. t c

The inclined upwardly moving surface of the separating apronlO is directly supported on aldeck 19 carried by the side boards 15. It is important to note that the upper surfaces of the rollers 11 and 12 are tangential with the upper surface of the deck Y19 and.

that said deck extends substantially the en tire distance between the said rollers. By thus locating the deck 19, the separating apron 10.in passing thereover is supported without sag, wrinkles, reases or pockets, which is highly desirable In the separation of grain. By adjusting the bearings 17, the desired tension may be placed on the separating apron 10. It may be here stated that by supporting the separating surface of,

the. apron 10 on the deck, 19, said apron can be much looser on the rollers than theapron in my prior patent above identified, thereby making themachine run much easier. In

said prior patent, it was necessary to keep the separating apron very tight to take out the sag, wrinkles and creases therein.

The separating apron 10 is preferably made from canvas or other fabric, having a relatively hard smooth surface. The separating surface of the apron 10 is held at the desired inclination by a pair of cables 20 at tached to the side boards 15 and arranged to be wound upon a crank-equipped windlass shaft 21 journaled in bearings 22 on the frame 1. A ratchet device or other suitable means, not shown, may be provided for holding the Windlass shaft 21 in different adjustments. The separating apron 10 extends the full distance between the side boards 15 and notches or apertures 23 are formed obliquely in the longitudinal edges of the deck 19 to permit the escape of grain, in case any thereof should work between the apron and deck.

Secured to the frame 1, is a fan casing 2a in which is mounted a fan 25. The fan casing 2 1 is provided with a horizontally disposed discharge spout 26, which extends between the side boards 15 and directs the blast of air from the fan 25 onto the separating apron 10, while passing over the deck 19. It will be noted that the blast of air is directed over substantially the full area of the .deck 19 and a portion thereof is LllIeCtBd between thepan .9 androller 11 to remove from the precipitated grain dust and other light materials, not removed by thesereens 6 and 7 For the purposelof this caseguitrisnot thought necessary to illustrate the driving connections for the feedroller "3, rol'lerll and fan 25 and the connection for vibrating the shoe l, a

The materials precipitated onto the "separating apron-10 are caughtby the oblique blast of the air from the 'fan 25 andall Wild oats, shrunken kernelsotgrain, sticks; straws, etc., areheld onsaid apron by" the blast of air and carriedupward over the roller11'and deposited at the rear'of the machine. Asvthe' surface of theapron '1-0 is relatively hard, the Wild oats will not stick thereto. 'l he clea-n health-y kernels of grain, having the specific-Weight, rolldoWn on the-apron 10 and are deposited onto the floor under the machine or into a; receptacle placed toreceive the same. By changing the inclination of the separating surface-of the apron 10, the operator can grade the grain as heavy or as light as he pleases. a a

As the separating surface ofthe' apron 10 is held perfectly smooth on the deck19 by the blast of air from die 21:11 25, thereis no danger-of the good'grain being cau-ght'in creases or pockets in the apron and carried upward and over the roller 11*with the material separated from the grain.

What I claim is .1. In. a grain separator, the jcomib'matlon with. a A frameQ-having upwardly. inclined deck 'W'ith' apertures in its longitudinal edges, of a traveling endless separating apron arranged to move upwardly over the deck a-nd a fan arranged to deliver a: blast in substantially *from'end to end of the declnwtherehy the blast ofair from the fan gill; maintain the apron in contact with the 3. In agrain separator,'the: combination with a frame having an upwardly inclined deck o'f anapron passing over said deck and a fan having-a discharge spout, said spout havingan open end, inclined to correspond With the degree of'inclination of the apron and deck, disposed closely adj acent thereto and extending substantially the length of the deck. V a

In testimony whereof I aflix my signature in; presence of two Witnesses.

TIMOTHY C. VAUGHN.

- Witnesses: I i a T. J. MANGAN, JAMES -T. LAWLER.

Gopies of this patent may beobtained for five cents each, by addressing the fiommissioner' of *ratents,

Washingtom D. 0. V

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