US499795A

US499795A - Grain-separator

Info

Publication number: US499795A
Authority: US
Publication date: 1893-06-20
Anticipated expiration: 1910-06-20

Description

` (No Model.) 3 Sheets-Sheet l.

0. M. MORSE. GRAIN SEPARATOR.

.Patented June 2.0, 1893.

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TNE cams PETER: ou.. PHoToMTwo.. wAsHmuToN, n. c.

(No Model.) 3 Sheets-Sheet 2.

0. M. MORSE. GRAIN SBPRATOR.

Patented June 20, 1893.

(No Model.) 3 Sheets-Sheet 3. O. M. MORSE.

GRAIN SEPARATOR.

No. 499,795. Patented June 20, 1893.

UNITED STATES PATENT OFFICE.

ORVILLE M. MORSE, OF JACKSON, MICHIGAN.

G RAI N S EPARATO R. furl/Tlf SPECIFICATION forming part of Letters Patent No. 499,795, dated J' une 20, 1893.

Application filed September 19, 1892. Serial No. 446,299. (No model.)

To all whom t may concern.:

Be it known that I, ORvILLE M. Monsua citizen of the United States, residing at Jackson, in the county of Jackson and State of Michigan, have invented new and useful Improvements in Grain-Separatore, of which the following is a specification.

This invention relates to improvements in the separating machine for which Letters Patent No. 441,372, dated November 25, 1890, and Reissue No. 11,165, dated May 12, 1891, were granted to me.

The separating machine of said patent contains a separating chamber which has an imperforate peripheral wall and an outlet at one end for the heavy material and at the opposite end for the light material, and a rotating air propelling device which is located in the separating chamber near the outlet for the heavy material, and Which causes the air to circulate from the axial portion of the chamber to the peripheral Wall, thence along the peripheral wall to the opposite end, and thence back through the axial portion of the chamber, so that the circulating air current moves along the peripheralwall from the outlet for the heavy material to the outlet for the light material and so carries the dust to the last named outlet.

The object of the present invention is to provide the machine with contrivances Whereby the grain or other heavy material, which is discharged from the separating chamber, is subjected to further air or gravity separationsl ioremove the light material mixed with it, and to improve the machine in other respects so as to render it better available for use as a grain scour-er or smut machine and for similar uses. y

Y In the accompanying drawings consisting of three sheetszFigure1 is a vertical section of an upright grain scouring and separating machine provided with my improvements. Fig. 2 is a side elevation of the machine, partly in section, the section being taken inline 2 2, Fig. l. Fig. 3 is a fragmentary top plan view of the machine. Fig. 4 is a horizontal section in line 4 4., Fig. l. Fig. 5 is a fragmentary vertical section through the upper por? tion of the scouring case, in line 5-5 Fig. 2. Fig. 6 is a horizontal section showing the peripheral wall of the scouring case polygonal in form. Fig. 7 is a vertical longitudinal section of a horizontal grain scouring and separating machine provided with my improvements, the plane ofsection being taken in line 7-7, Fig. 8. Fig. S is a sectional end elevation of this machine, the section being taken in line 8-8, Fig. 7.

Like letters of reference refer to like parts in the several figures.

A represents the periph eral wallof the scouring chamber which has preferably the form of a frustu'm-of a cone or pyramid. In the upright machine represented in Figs. 1 to 5, this peripheral wall is secured with its lower,

large end to a bottom plate A', which rests upon the stationary frame of the machine, and with its small upperend to a top plate A2.

,B represents a vertical shaft arranged axially in the scouring chamberand extending below the same. The lower end of this shaft is supported by a step bearing on" a bridgetree b secured to the stationary frame of the machine, and the shaft is provided above the bridge-tree with a driving pulley b. The upper eudvof the shaft is supported in a bearing b2 secured tothe topplate A2.

c represents the feed pipe through which the grain, or other material to be operated upon, is introduced into the scouring case,

and which enters the upper portion of the latter near the center thereof and delivers the grain into a feed saucer C which is secured to the shaft B in the lower-portion of the scouring chamber.

D represents an annular plate arranged horizontally below the feed saucer and secured tol the shaft B below the saucer by a spider d. This plate carries on its underside the blades or wings F. by which the air is set in motion Within the machine and which are arranged underneath the outer portion of the plate. The interior surfaces of the feed saucer and annular plate are preferably ribbed `or roughened near their edges to increase the IOO .chamber and so retard its escape therefrom,

and which also turn the grain over as the kernels roll over these flanges at their upper edges and at their inner ends.

h represents the opening for the discharge of the grain formed in the bottom plate A near the peripheral wall of the scouring chamber. t' represents the opening formed in the top plate A2 near the peripheral wall of the scouring chamber for the escape of the smut or other light dust. This opening connects with adust spout I extending downwardly on the outer side of the scouring chamber and preferably provided in its upper portion with an adjustable internal gate t by which the flow of the dust through the spout can be regulated. The grain which is discharged through the opening h is accompanied by an air current composed of part of the air which is set in motion by the rotating blades in the scouring chamber. The plump grain' is first Separated from this air current and the chaff, chess, shrunken grains, dsc., which are carried on the air current, are separated therefrom, and the plump grain is subjected to a further air separation in an air or gravity separator into which the grain and air current pass from the scouring chamber, and which is constructed as follows: j is an inclined board 'or plate arranged underneath the grain discharge opening h and inclined toward the center of the machine and forming the outer and lower wall of an air passage, the inner wall of which is formed by a plate j carrying at its lower end an adjustable valve jfl. The plate j and the valve t7'2 are arranged near the shaft B of the machine, and the valve j 50 l72 is provided with a stem extending through the casing of the machine and provided out'- side of the casing with a hand lever and fastening by which the valve is'adjusted and secured in position, as is usual 1n grain cleaning machines. The board j forms at the same time the top of an air passage through which the air flows outwardly and whose bottom is formed by an inclined board J arranged underneath the board j and parallel therewith and extending inwardly beyond the shaft B. The air passage between the boards y and J may be divided into two parts, one arranged above the other, by an inclined board f.

K represents the chaff hopper which is arranged outside of and below the board J, and which receives at its upper end the air current iiowing outwardly through the passage L represents an inclined board whichis arranged below the inclined board J and which extends with its upper end into the chaff hopper K, and has its lower end arranged at the opposite side of the machine. The boards J and L form the top and bottom of an air passage through which the air iiows from the chaff hopper to the opposite side of the machine. At the inner end of the board J is arranged an ascending air passage, the inner and outer walls of which are formed by boards m and m. The latter extends downwardly below the board J and toward the board L above which it is arranged while the board m is arranged above the lower end of the board J.

M is an adjustable upright board arranged on the inner side of the outer wall m of this ascending air passage and made adjustable toward and from the opposite vertical wall by screws m2 or other suitable means, so that the size of this air passage can be regulated. The casing of the Vmachine is provided with covered hand holes of well known construction opposite the screws fm2 through which holes access can be had to the screws, when required.

N represents a flap valve which is arranged over the lower portion of the inclined board J and which rests loosely upon the grain flowing over said board and prevents any considerable volume of air from passing downwardly with said grain. 4

O represents the chess hopper which communicates with the upper end of the ascending air passage formed between the boards m m and in which the chess, broken grain, dac., are deposited. This chess hopper may be divided into two parts by an inclined partition O when it is desired to separate the deposited materials into two grades and in this case the two grades of material are discharged from the hopperby two valves O2 O3.

p represents a horizontal board which forms the bottom of an air passage leading from the upper part of the chess hopper to a central opening P formed in the bottom A of the scouring chamber. This openingis pref erably provided with an adjustable gate p' for regulating the air current passing through 'separation is made of the detached smut and other iine dust from the grain and coarser impurities, the smut and fine dust being driven by the air current in the scouring chamber to and through the dust outlet at the up-vl IOC IIO

per end thereof, while the grain and coarser impurities are discharged through the opening in the bottom plate provided for that purpose. Part of the air which is set in motion by the rotating blades escapes from the scouring chamber with the grain and coarser impurities. The plump grain is separated from this air current at the lower end of the inclined plate 7' where the grain drops through the air current and descends over the inclined plate J, while the air current reverses its direction and passes upwardly and outwardly to the top of the chaff hopper. The heavier grade of the coarse impurities carried on the air current is deposited in this hopper, and the air current, still carrying the lighter grade of these coarse impurities, moves oninwardly and downwardly until it reaches the end of the inclined board Jwhere it assumes an upward direction and passes through the descending plump grain which escapes over the inclined plane of the board J and separates from the grainany light impurities Which may be mixed with it. The air current now passes through the chess hopper where the lightimpurities carried on the air are deposited and iinally returns tothe interior of the scouring chamber through the central open.

an opening 'i2 provided with a valve t3, so that.

the dust can be directed from the dust spout into the chaff hopper by placing the valve obliquely across the dust spout, as shown in Fig. 2, or can be discharged separately by closing the opening in the side of the chaff hopper. The chaff hopper may be provided with a partition 7c depending from the upper end of the inclined board J, for the purpose of s giving the air current first a descending and then an ascending direction in the hopper, and this partition may be perforated, as shown in Fig. l, for the purpose of allowing part of the air to pass through it in a more directtained in the grain will pass through the' screen and escape through an opening Z in the lower portion of the plate L, together with impurities which may reach this opening` from the upper portion of the inclined plate L.

Instead of making the peripheral wall of thescouring chamber circular in cross secanism and the same gravity or air separator which are employed in the upright machine, but the scouring and dust separating mechanism is arranged with its axis horizontally and on one side of the gravity separator instead of being arranged perpendicularly and above the gravity separator as in the upright machine. In this horizontal machine the feed spout c delivers the grain directly upon the peripheral wall of the scou ring chamber from which it is discharged after it has been scoured and' the dust has been separated from it through the opening 71, in the large head A of the scouring chamber. This opening is inclosed by a hood h` which contines the grain and the air escaping withit from the opening h. The wings run in an upward direction on that side of the machine, and the grain and air are discharged in an upward direction. The hood extends therefore beyond the upper, inner and lower sides of said opening, but can be arranged closely against the outer side of said opening. The hood his provided at its lower end with an opening h2 through which the grain escapes while the air current carrying the coarse impurities in suspension passes upwardly to the upper end of the chaff hopper. After depositing the chaff in the same the air current passes through the descending stream of plump grain and ascends to the chess hopper and finally returns to the interior of the scouring chamber through the opening P. The several parts of the gravity separator are constructed and operate substantially like those of the gravity separator ofthe upright machine. The grain discharge opening h may be provided with agate h3 for regulating the discharge of the grain and air therefrom.

The dust spoutl, which leads from the dust outletiat the small end of the scouring chamber to the chaff hopper, is provided in its bottom with an opening #provided with a valve t5. Upon opening this valve the dust can be discharged from this spout through that opening, while by closing the valve, the dust is sent to the chaff hopper.

The shaft B of the horizontal machine is arranged horizontally and carries the driving pulley b at one end.

l claim as my inventionl. The combination with the scouring and dust separating chamber having a dust outlet at one end, an outlet for grain and air at the other end and an internal air propelling de-V vice, of -a chamber which is connected with the grain outlet and in which the grain is separated from the air current, and a return passage whereby the air current is conducted back to the scouring chamber, substantially as set forth.

2. The combination with the scouring and Ico` IIO

dust separating chamber having a dust outlet at one end, an outlet for grain and air at the other end and an internal air propelling device, Of a chamber which is connected With the grain outlet and in which the grain is separated from the air current, a hopper through which the air current passes after having left the grain and in which the heavy impurities are deposited, and a return air passage leading to the scouring chamber, substantially as s'et forth.

3. The combination with the scouring and Y dust separating chamber having a dust outlet at one end, an outlet lfor the grain and air at the other end and an linternal air propelling device, of a chamber which is connected with the grain outlet and in which the grain is separated from the air current, a hopper through which the air current passes after having left the grain and in which the heavy impurities are deposited, an ascending ai-r passage leading to a secondary hopper in which the light impurities are deposited, and a return air passage leading to the scouring chamber, substantially as set forth.

4. The combination With the scouring and dust separating chamber having a dust outlet at one end, an outlet for grain and air at the other end, and an internal air propelling device, of a chamber which is connected With said grain outlet and in which the grain is separated from the air current, a chamber in which the grain is afterward caused to descend through the same air current, and a return air passage leading to the scouring chamber, substantially as set forth.

5. The combination With the scouring and dust separating chamber having a dust outlet at one end, an outlet for grain and air at the other end, and an internal air propelling device, of a chamber which is connected with said grain outlet and in which the grain is separated from the air current, a hopper in' which the air current drops the heavy impurities, a chamber in which the grain is caused to descend through the same air current after the latter has passed through` said hopper, and a return air passage leading to the scouring chamber, substantially as set forth.

6. The combination with the scouring and dust separating chamber having a dust outlet at one end, an outlet for grain and air at the other end and an internal air propelling device, oi' a chamber which is connected with said grain outlet and in which the grain is separated from the air current, a hopper in which the air current drops the heavy impurities, a chamber in Which the grain is caused to descend through the same air current after the latter has passed through said hopper, a hopper. in which the air current drops the light impurities, and a return air passage leading to the scouring chamber, substantially as set forth.

7. The combination with the scouring and dust separating chamber having a dust outlet at itsupper end, an outlet for grain and air at its lower end and an internal air propelling device, of a gravity separator arranged underneath said scouring mechanism and composed of a chamber arranged underneath the grain outlet, in which theV grain is separated from the air current, a chaff hopper arranged underneath said chamber, an inclined grain passage leading from said chamber, an air passage leading` from said hopper and intersecting said grain passage, a secondary hopper arranged above said grain pas-V sage on the opposite side of the machine, and a return air passage leading to the scouring chamber, substantially as set forth.

8. The combination with the scouring and dust separating chamber having a dust outlet at one end, an outlet for grain and air at' the other end, and an internal air propelling device, of a chamber which is connected with said grain outlet and in which the grain is separated from the air current, a grain passage leading from said chamber, an air passage also leading from said chamber and intersecting said grain passage, and a return air passage leading to the scouring chamber, substantially as set forth.

9. The combination with the scouring and dust separating chamber having a dust outlet at one end, a grain outlet at the other end and an internal air propelling device, of ribs or defleetors arranged on the inner side of the peripheral wall of the scouring chamber opposite the air propelling device and inclined to deflect the grain from the grainoutlet toward the dust outlet, substantially as set forth.v

lO. The combinationwith the scouring and dust separating chamber having a dust ontlet at one end, a grain outlet at the other end and an internal air propelling device, of ribs arranged .on the head of the chamber adjacent to the grain outlet and extending from the periphery toward the center of the head in the direction in which the air propelling device rotates, substantially as set forth.

l1. The combination With the scouring and dust separating chamber having a dust outlet at one end, an outlet for grain and air at the other end and an internal air 'propelling device, of a gravity separator connected with the grain outlet and having ahopper in which the impurities are deposited and a return passage, and a dust spout connecting said dust outlet with said hopper and provided with a valve which can be adj usted to deliver the dust into said hopper or discharge it outside thereof, substantially as set forth.

Witness my hand this 16th day of September, 1892.

ORVILLE M. MORSE.

Witnesses:

JNO. G. MUNDY, SAM. H. CAMP.

IIE