US505573A - Grain-cleaner - Google Patents

Description

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N0. 505,573. Patented Sept. 26, 1893.

No Model.) 2 sheets-sheen 2.

vO. M. MORSE. GRAIN GLEANER.

N0.5o5,573. 'Pau-,enmedsepnI 26, 189s.

UNITED STrvrns 'PATENT OFFICE..

ORVILLE M. MORSE, OF JACKSON, MICHIGAN.

GRAIN-CLEAN ER.

SPECIFICATION forming part of Letters `I'atent No. 505,573, dated September 26, 1893.

Application filed January 23, 1891. Serial No. 378,793- (No model.)

T0 @ZZ whom t may concern:

Be it known that I, OuviLLE M. MORSE, a citizen of the United States, residingat .I ackson, in the county of Jackson and State of Michigan, have invented new and usefulIrnprovements in Grain'Oleaners, of which the following is a specification.

This invention relates to a grain cleaner in which the scouring mechanism is combined with a separator which effects the separation of the dust Vand other light impurities from the grain and of the dust and other light impurities from the air while the latter is being kept in circulation within the machine, so that practically no air is drawn into the machine or discharged therefrom.

In the accompanying drawings consisting of three sheetsz-Figurel is a sectional elevation of my improved grain separator. Fig. 2 is a horizontal section in line www, Fig. l. Fig. 3 is a horizontal section in line y-y, Fig. l, looking upward. l.

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

In Figs. l, 2 and 3, A represents the grain scourer consisting of an upright cylindrical scouring case o, which is perforated and revolving scouring plates, disks or stirrers b which are secured to a vertical shaft B. These stirrers may be made circular and be secured eccentrically to the shaft B, or they may be made of any other suitable form. The scouring cylinder receives the grain through its open top and delivers the grain at its lower end into a feed saucer or cup O which is mounted on the shaft B. The latter is rotated by power applied to the pulley c or other suitable means.

d represents fixed stirrers secured to the lower portions of the scouring cylinder and projecting into the revolving saucer C to facilitate the discharge of the grain over the edge of the saucer.

E represents a cylindrical shield which surrounds the edge of the saucer and prevents the grain from being thrown by centrifugal force too far from the center of the machine.

F represents the separating chamber which surrounds the scouring mechanism and extends below the same. This chamber is composed of an upwardly tapering peripheral wall f having near its upper end a discharge opening f which is provided with a discharge spout f2, a top G, through which the upper end of the scouring cylinder projects and which carries the bearing g for the upper end of the shaft, and a bottom I-I having at its centeradischarge opening hwhichis provided with a trapped discharge hopper h.

Irepresents afan which is arranged in the lower portion of the separating chamber and which consists of an annular plate t' secured to the shaft B by a spiderj and wings J secured to the upper side of the annular plate. The central opening or eye of the latter is provided with an upwardly projecting collar le.

`L represents flights secured to the under side of the annular plate and curved or inclined to the radial line in such manner as to move the grain whichfalls on the bottom H to the central discharge hopper.

The feed cup O is mounted on the shaft B so as to rotate therewith and to be capable of vertical movement toward and from the lower end of the scouring case. It is raised toward the scouring case by a spring 7c interposed between the hub of the fan and the cup. When the weight of the grain in the scourer increases the feed cupxis depressed and more grain is discharged and when less grain is flowing through the scourer the feed cup is raised by the spring, thus preventing choking of the scourer and insuring an even discharge of the grain.

The grain to be cleaned is fed into the scouring cylinder at the top and is freed by the scouring mechanism from the dust and adhering impurities. The fine dust passes through the perforations of the scouring cylinder into the surrounding upper portion of the separating chamber while the coarser impurities are discharged with the grain upon the revolving saucer by which this material is thrown against the surrounding shield, whence it drops upon the annular plate of the fan. The upwardly projecting annular collar in the eye of the plate prevents any of the material from falling through the eye upon the bottom of the separating chamber. The material is driven outwardly over the revolving plate and is thrown against the peripheral wall of theseparating chamber. At the same time the fan creates an air current which flows upwardly along the peripheral IOO wall of the chamber and downwardly through the axial portion thereof. rlhe ascending impelled air current picks up the dust and other light impurities and carries them to the upper discharge opening f through which they are expelled while the grain falls upon the bottom of the separating chamber and is discharged through the central hopper h.

The air is kept in circulation within the separating chamber so that practically little or no air is drawn into the machine or discharged therefrom, whereby the escape of dust into the room is prevented. The machine is also rendered very simple and compact, as the same separator which separates the light impurities from the grain also separates the light impurities from the air.

The dust which is liberated in the scouring caseis driven through the perforations in the latter into the surrounding separating chamber and, as the scouring case is located in the immediate Vicinity of the dust outlet of the separating chamber, the greater portion of that dust is at once delivered to the dust outlet and does not reach the lower portion of the separating chamber into which the grain is delivered.

I claim as my inventionl. The combination with a closed separating chamber provided at its vbottom with an escape for the grain and at its top with an escape for the dust, of a fan arranged in the lower portion of the separating chamber and propellingthe air upwardly along the peripheral wall and drawing it downwardly through the axial portion of the separating chamber, a perforated scouring case arranged in the upper portion of the separating chamber and discharging the grain and dust into the latter, and a scouring mechanism arranged in said case, substantially as set forth.

2. The combination with a closed separating chamber provided at its bottom with an escape for the grain and at its top with an escape for the dust, of a fan arranged in the lower portion of the separating chamber and propelling the air upwardly along the peripheral wall and drawing it downwardly through the axial portion of the separating chamber, a perforated scouring case arranged in the upper portion of the separating chamber, and

discharging the grain and dust into the latter, a scouring mechanism arranged in said case, and a revolving feeder arranged below the scouring case, substantially as set forth.

3. The combination with a closed separating chamber provided at its bottom with an escape for the grain and at its top with an escapefor the dust, of a fan arranged in the lower portion of the separating chamber and propelling the air upwardly along the peripheral wall and drawing it downwardly through the axial portion of the 'separating chamber, a vertical perforated vscouring cylinder arranged in the upper portion of the separating chamber, a scouring mechanism arranged in said cylinder, and a revolving feeder arranged below the lower end of the scouring cylinder, substantially as set forth.

4. The combination with a closed separating chamber provided at its bottoni with an outlet for the grain and at its top with an outlet for the dust, of a fan arranged in the lower part of the separating chamber, a scouring mechanism arranged in the upper part of the separating chamber, a revolving feeder arranged underneath the scouring mechanism, and ashield surrounding the feeder, substantially as set forth.

5. The combination with a closed separating chamber provided at its bottom with an outlet for the grain and at its top with an outlet for the dust, of a fan arranged in the lower portion of the separating chamber, a scouring cylinder arranged in the upper portion of the separating chamber, a revolving feeder arranged below the scouring cylinder, and stirrers secured to the scouring cylinder and projecting into the revolving feeder, substantially as set forth.

Witness my hand this 17th day of January, 1891.

ORVILLE M. MORSE. Witnesses:

CARRIE A. MUNDY, JNO. G. MUNDY.

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