US907555A - Machine for cleaning and separating grain. - Google Patents

Description

A. N. ARNBSON.

MACHINE FOB. CLEANING AND SEPABATING GRAIN.

APPLIOATION FILED MAY 10, 1907 Patented Dec. 22, 1908.

ANDREW N. ARNESON, OF WEGDAHL, MINNESOTA.

MACHINE FOR CLEANING AND SEPARATING GRAIN.

norm-1,555. 7

Speciflcationof Letters Patent.

Patented Dec. 22, 1908.

Application filed. May 10, 1907. Serial N 0. 372,937.

To all whom 'itmay concern:

Be it known that 1, ANDREW N. ARNEsoN, a citizen-of the United States, residing at Wegdahl, Chippewa'county, Minnesota, have invented certam- Improvements in Machines for Cleaning and Separating Grain, of which the following is a s ecification.

This invention re ates to improvements in machines designed for separating all kinds of seeds, or grain, and particularly to improvements in machines designed for removing wildoats, weed-seeds, and other refuse from oats, wheat, for other grain.

The object of the invention is to rovide a machine of large capacity which wi 1 make a thorough separation, removing wild oats, Weed-seeds and other refuse material from tame oats, wheat, or other grain.

Another obj ectof the invention is to provide a machine that maybe advantageously used for separating Wheat from oats, or one kind of seed or grain from another. I

The. invention consists generally in the constructions and combinations hereinafter described and particularly pointed out in the claims;

In-the accompanying drawings, forming part. of the specification; Figure 1 is a side elevation of a machine embodying my invention. Fig. 2 is a longitudinal vertical section of the machine. Fig. 3 is a detail section on line 33 of Fig. 2. Fig. 4 is a p'artial plan section on line 44 of Fig. 2.

In all of the drawings, 2 re resents the frame of the-machine which may e of an suitable construction and which is provide with the usual hopper 3 having a suitable feed board or gate 4. Mounted in the frame of the machine are the upper and lower longitudinally reciprocating ' shoes 5 and 6. The upper shoe, at its rear end, is referably mounted on the hopper of the madliine b the pivoted hanger 6. At its forward en it is adjustably supported u on the pivoted supports 7, which are suitab y secured to' the frame of the-machine. The lower shoe at'its forward end is .adjustably supporteduponthe pivoted support '8, and atits rear-end it is adjustably sup orted upon the pivoted hangera-9.. The ower end of the support 7 is preferably connected to the upper portion of the support 8, and a connecting rod 10, that l is adjustably connected to the upper end of the support 8, is also connected to a suitable crank-pin on the fan-shaft 11. The fanshaft is provided with a suitable pinion 12 and is o erated by a sprocket chain 13 extending om a suitable drive-Wheel 14. By this means the shoes areoppositely reciprocated and thereby balance each other.

Mounted in the upper shoe is an endless apron 15, preferably formed of carpet, or carpet covered with jute, woolen, or other suitable fabric having a long na This apron is supported at its upper on with a roll 16 that has its support preferably in slots 17 in the end of the shoe. At its lower end, the apron 15 is supported upon a roll 18- having its support in s ots formed in the adjustable bearing-bars 19. One of these bars I provide for each end of the roll 18, and said bars are pivotally supported at their lower ends upon the shoe, and are rovided at their upper ends with the slotte extensions 20, through which pass the locking screws 21. By this means, when the endlessapron is put into the shoe, the upper roller 16 is first put into position with its journals extending into the s ots 17; the lower, or forward, end of the apron has its roller 18 mounted in any of the s ots in the bar 19, and after said apron is in position, the bars 19 are moved outwardly from the end of the shoe so as to make taut the endless apron passing around the rollers I 16 and 18.

Whenever it is desired to change the angle of the endless apron 15, it is only necessary to loosen the screws 21 and then move the bars 19 so that the shaft of the roll 18 may be removed from the slots in said bar 19. This shaft may be moved either up or down and brought into other slots or recesses in said bars 19 and thereby the angle or inclination of the endless apron 15 may be adjusted to suit the character of the grain to be operated upon. Beneath the upper part of the apron 15 is a deck or plate 22 formed of sheet metal, wood, or other suitable material. This furnishes a smooth, rigid surface for the up-hill side of the endless apron 15.

The shaft of the u per roller 16 is provided 7 with a suitable ratc et 34, and, as shown in Fig. 1, there are two dogs or awls 35 and 36 mounted upon the frame of t e machine-and the hopper 26 must pass.

each provided with aspring ratchet engaging 1 the short section of wire-cloth or screen- 5 the teeth of the ratchet-wheel 34. With this material 23 arranged upon suitable supports construction the ratchet wheels are turned l beneath the upper part of the endless apron one notch or step with each forward or backward reciprocation of the shoe. If preferred however, one of the dogs or pawls 35 or 36 may be omitted from the machine without destroying its operativeness or efficiency.

Beneath the upper part of the downwardly moving side of this apron and in close proximity thereto, I prefer to arrange a short section of wire-cloth 23, over which the under surface of the apron must rub as it passes downward. Below the screen section 23 and apron 15 I provide a deck or floor to the shoe consisting preferably of a sheet-metal plate 24 at the lower end of which is a transverse open spout 25. Below the lower end of the upper shoe is a hopper 26 provided with a suitable feed opening, and below this hopper is the air-trunk 27 of the fan 28, said fan, as before stated, being mounted upon the fan shaft 11.

The fan 28 is inclosed in a suitable casin 29 which is connected to the air-trunk 27 an into which trunk the material falling from I also prefer to provid elow the mouth of the air-trunk an adjustable drop-board 31 by which the direction of the current of air passing from the fan may be regulated. The lower shoe 6 is provided with the usual removable screen 31 and above this screen is a second removable screen 32 which is provided with a transverse spout 33.

The drop-board 31, hereinbefore referred to, is located near the end of the air-trunk and in position to direct upwardly the current of air passing from the fan. This current of air comes in contact with the grain and any foreign material that may be mixed therewlth that falls from the hopper 26, whereby the light material is blown out and the grain or heavy material falls upon the adjustable drop-board 31 and then asses to the screen 32 in the lower shoe. y adjusting the drop-board 31, by turning it upon its pivot, or moving it u ward or downward, the force and direction 0 the air'current that is blown through the air-trunk 27 may be regulated.

Operation: The fan is set in motion and the shoes are reciprocated. The smooth, heavy grain will ass downwardly over the a ron 15 and wil drop into the hop er 26. T e light, wild oats, Weed-seeds, an other similar material, most of which is rough, or provided with beards, will adhere to the upwardly moving surface of the endless apron 15 and be carried 11 ward and over the upper roller 16. Part of t is material will fall upon the sheet-metal plate 24 and part of itmust be removed by suitable means. The means 15. The surface of the apron rubs over this screen section, and any adhering wild oats, Weed-seeds, or other refuse material will be rubbed off and brought onto the late 24 and will pass into and out through t e spout 25. The smooth grain which passes down over the apron 15 will fall into the hopper 26 and through this into the spout or air-trunk 27. The force and direction of the blast from this trunk can be regulated by the adjustable drop-board 31. The grain will strike this drop-board and will be directed onto the screens in the lower shoe by which an additional separation will be made. Material that is removed by the upper screen 32 will be taken out by the side spout 33. Any fine material that has not been removed by the uplpler shoe will drop through the screen 34 w e the clean grain will pass over the tail of this screen. If preferred, one of the ratchets 35 or 36 may be removed, in which case the apron will be moved only during one movement of the shoe. The apron 15 and plate or deck-section 22 and the screen section 23 may be readily removed from the upper shoe, the spout 25 may be covered and a gang of ordinary sieves may be laced in said shoe and the machine will then e ada ted for use as an ordinary fanning mill. This machine may also be advantageously used for separating split or broken peas or beans from whole ones. The beans or peas being fed through the hop er to the upper end of the endless apron, the whole beans or peas will pass down over the apron, while the split or broken ones will be carried upward by the apron and drop ed over its u per end.

I do not limit myself to the deta' s of construction, as the same may be varied in many particulars without departing from my invention.

I claim as my invention:

1. The'combination, with a frame, of a vi- .brating shoe mounted therein, an inclined endless apronv composed of material having a long nap such as ute mounted in said shoe, a hopper arranged to deliver the grain upon the upper end of the upwardly moving portion of said apron, and a screen section such as wire cloth arranged under said apron and with which the downwardly moving portion of said apron has a rubbing contact.

2. In a machine of the class described, the combination with a suitable frame, of a vibrating shoe mounted therein, an inclined endless apro'n arranged in said shoe and composed of a fabric having a rough or long nap surface, a screen section arranged to contact with the downwardly moving portion of said apron on the under side thereof, a side delivthat I have shown for this purpose consist of l ery spout provided on said shoe below said screen section, a hop er device located beneath the lower end 0 said apron and adapted to receive the grain discharged therefrom, and an air trunk located below said hopper and into which said hopper discharges, and a blast fan arranged to create a current of air through said trunk and beneath said hopper.

In witness whereof, I have hereunto set my hand this 4th day of May 1907.

I ANDREW N. ARNESON.

Witnesses:

O. A. FosNEs, ANNA LANDQUEST.

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