US290288A - Machine for hulling and cleaning grain - Google Patents

Description

(No Model.)

S.,K.TODD. M'AOHILIBFOR HULLING AND CLEANING GRAIN. No. 290,288. Patented Dec. 18, 1883.

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' lTED STATES PATENT OFFICE.

SAMUEL K. TODD, OF EUGENE, INDIANA.

MACHINE FOR HULLING AND CLEANING GRAIN.

SPECIFICATION forming part of Letters Patent No. 290,288, dated December 18, 1883,

Application filed March 29. 1883.

To all whom it may concern.-

Be it known that I, SAMUEL K. TODD, a citizen of the United States, residing at Eugene, in the county of Vermilion and State of Indiana, have invented a new Improve ment in Machines for Hulling and Cleaning Grain, of which. the following is a specification.

My invention relates to that class of grain hulling and cleaning machines which act upon the wheat by abrasion, to reduce the hulls to powder, and by atmospheric suction to with draw said powder and other dirt; and it consists in the construction and combination of parts forming a grain hulling and cleaning machine, hereinafter described and claimed, reference being had to the accompanying drawings, in which- Figure 1 is a longitudinal vertical section, part in elevation. Fig. 2 is a transverse vertical section at :0 00, Fig. 1, part in elevation, showing my invention; and Fig. 3 is a transverse vertical section at g y, Fig.1, part in elevation.

A represents the frame of the machine.

B represents the outside shell, consisting of a cylinder of perforated sheet metal or wirecloth, to admit air, but too fine to allow grain to pass through it, and fixed to the frame A.

0 represents the main shaft ofthe machine, which is rapidly rotated in bearings D by a belt upon the pulley 0. Upon this shaft are secured at equal intervals a number of wheels, E, very open in their webs and light in their rims, and all turned to one diameter. Upon these wheels is secured a metallic cylinder, 6, perforated or of wire-cloth, like that of the shell B, for the purpose of admitting air and dust to its interior. One end of cylinder 6 is perforated with large holes It, to allow free passage of dust through them from the interior of the cylinder.

b is a partition across cylinder B, having a central aperture, in which cylinder-e revolves without contact, yet close enough to prevent the escape of grain.

f is a chamber formed in the end of cylinder B by partition I), and the head in which a fan, F, secured upon shaft D, revolves. The cylinder B is not perforated around chamber f, but a is a tangential outlet thereto. The fan acts 'centrifugally, to draw air and dust (No model.)

from the main cylinder B into and through the inner cylinder, e, to the fan-chamberfiwhence it is discharged by the mouth a into any usual conductor or receptacle. The webs of wheels 'E are made open, to allow free passage to the air and dust. 9 represents a number of blocks secured upon cylinder 6 by bolts passing in through the rims of wheels E.

G represents blades secured upon the sides of blocks g in pairs by means of bolts passing through said blades and blocks. These blades revolve with cylinder 6 and act upon the grain by beating and abrasion, -to remove its hull and reduce the same to fine powder. The grain is admitted to the outer cylinder, B, through a hopper, H, placed near partition I), in order that said grain may pass the whole length of the cylinder and come in contact with all the blades before it can escape at the outlet h. This outlet is an aperture in a sliding gate, which fits in grooves around the cylinder B, covering a long aperture, I, in said cylinder, and said gate may be raised or lowered to control the amount of scouring action of the blades on the grain. If the gate be low, the grain will escape more quickly than if it be high, thus allowing less time forthe scouring action of the blades on it; and, further, when the grain is high in the cylinder it offers greater depth to be plowed by the blades and greater resistance to them, thereby being more abraded and scoured by their passage through it.

Having thus described my invention, what I claim as new is 1. A perforated stationary outer cylinder, having an inlet through its side, near one end, to admit grain, and an outlet for grain near the other end, in combination with a perforated revolving inner cylinder, having blades secured on its surface, and means for drawing air and dust from the outer through the 'inner cylinder out through the end of the latter and discharging the same, the respective chambers of said outer and inner cylinders being in no way connected, except by the perforations through the inner cylinder, as and for the purpose specified.

2. A perforated stationary outer cylinder, having a grain-inlet near one end and a grainoutlet near the other end, in combination with a perforated revolving inner-cylinder blade IOO secured thereon, a centrifugal fan secured at the end of said inner cylinder, on the shaft thereof, and a chamber for said fan to revoly e in, connected with the inner cylinder by holes in the end thereof, said fan-chamber being provided with an outlet, substantially as and for the purpose specified.

3. The co1nbination,with the stationary perforated cylinder B, having a grain-inlet, H, near one end, a long opening, I, at the other end, and a sliding gate, 1', having a hole, h, in it over said opening, of a perforated revolving inner cylinder, 0, having blades secured thereon, and a centrifugal fan, 13, secured on the shaft of said inner cylinder to revolve 15 therewith, as and for the purpose specified.

4. The combination, with the shaft 0, the open-webbed wheels E, secured thereon, and the perforated cylinder 0 on said wheels, of the blocks 9, bolted to said cylinder and 20 wheels, and theblades G, bolted to said blocks, as and for the purpose specified.

SAMUEL K. TODD.

YVitnesses:

W. S. JEWELL, M. G. Hosronn.

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