US498510A - Combined grain h u ller - Google Patents

Description

(No Model.) v

B. E; FISCHER. COMBINED GRAIN HULLER, SCOURER, AND PO'LISHER.

Patented May 30, 1893.

BERNHARD E. FISCHER, OF DEFIANCE, OHIO.

. COMBINED GRAIN HULLER,

scou RER, AND POLISH ER.

SPECIFICATION forming part ofLetters Patent No. 498,510, dated May 30, 1893.

Applicant nea im 17, 1892.

To a/ZZ whom it may concern: Y

Be it known that I, BERNHARD E. FISCHER, a citizen of the UnitedStates of America, residing at Defiance, Defiance county, Ohio, haveV invented certain new and luseful lmprovements in a Combined Grain Huller, Scourer, and Polisher, of which the following is a specification, reference being had therein to the accompanying drawings.

This improvement relates to that class of scourers in which the grain is under great compressionwhilelbeingacted upon, and which compression can be increased or decreased at pleasure, and the invention consists in the peculiar construction, arrangement and cornbinations of parts Aby which these ends are obtained, which are hereinafter more particularly described and then definitely claimed. In the accompanying drawings-Figure lis an elevation of a seourer constructed according to my invention with part broken away. Fig. 2 is a section of the same on the line yy, Fig. l. Fig. 3 is a horizontal section on line :n a; Fig. l. Fig. 4 is a reversed plan of the lower end of the scouring cylinder.

Referring now to the details of the draw-4 ings by letters-A represents the frame of the machine of any suitable material or construction on which is set a plate B having a cylindrical flange C andperforations bto admit air. Below this plate is a tube D into which leads a spout E. Surrounding the iiange Cis a steel wire cloth cylinder F corrugated as i shown in Fig. 3, above which is a head f, and

in one side an opening f (shown in dotted lines in Fig. l). On its side is a slide G havinga perforation g, through which the scoured grain passes into the discharge spout H. On the side of the opening f' are guide plates p to keep the slide G in its proper position.

I is a cylinder having a corrugated surface as shown and provided with a shaft J mounted in a step K on the frame and carrying on its lower end a spiral conveyer or screw L working in the tube D, said tube and conveyer forming a forced feed. Surrounding the wire cloth cylinder is a casing M of any suitable material and above the top of the saine is a fan N for drawing away the fluify matters, dust, &c.,but as there is nothing new in this feature a further description of it is unnecessary. On the lower end of the cylin- Serial No. 437,093- (No model.)

der are three tangential? discharge blocks O which act to force out the grain as itis brought up bythe conveyer or screw L. These blocks may be reversed if desired, so that the cylinder may be made to run in either direction required.

The operation is as follows: The grain is fed into the spout E and is carried up by the conveyer and forced out by the tangential blocks into thespace between the cylinders F and I, and each grain, by contact with the corrugations, and with the others, rapidly becomes scoured and '1 polished under the pressure caused by the forcing of the grain in at the bottom of the cylinder, and as it becomes polished, passes out at the hole g in the slide G. The amount of scouring and polishing can be regulated perfectly by raising or lowering the slide G, which will retain the grain under the scouring operation a longer or shorter time accordlng to whether the opening is high or low. The degree of compression will also bev not absolutely, necessary as very good results can be obtained with the grain in a dry condition.

By the use of my improved scourer the outer hulls of the wheat berries are rapidly loosened by the friction and then taken away 'by the draft of the fan, and the berries polished as they rise in the cylinder. It will be observed that the hard, outsideskin is operated on under the greatest pressure due to the weight of the superincumbent grain, while the final polishing is done Where the pressure is the least and when the softer portion of the shell is under action.

I consider the vertical corrugations in cylinder F as an essential feature of my improvement,becauseby theiractionthegrains,asthey come in Contact with said corrugations, are caused to rotate and thus rub one against the other, without the tendency to carry them upward or to impede their upward motion which results from diagonal or spiral corrugations. I also consider it important that the spiral conveyer shall be below the cylinder and in IOO a vertical position, for owing to the weight and pressure of the grain above it, there is considerable scouring action on the grain by said spiral conveyer as it feeds the grain into the scouring cylinders proper.

What I claim as new is;

1. The combination in a grain scourer of two vertical corrugated cylinders, one within the other, and one of which revolves, a tube or casing entering the lower end of one of said cylinders, a vertical screw conveyer working within, and a spout leading into the lower end of said tube or casing, and a discharge opening in one ofthe cylinders, substantially as described.

2. The combination in a grain scourer, of two vertical cylinders, one having a discharge opening and the other revolving within it, a vertical spiral conveyer around the shaft of said revolving cylinder, a tube entering the lower end of one of said cylinders and surrounding the conveyer, a spout leading into the lower end of said tube, andan adjustable slide having an opening therein to govern the discharge through the opening in the stationary cylinder, substantially as described.

3. The combination in a grain scourer, of two corrugated cylinders, one of which revolves, a conveyer around the shaft of said revolving cylinder, tangential blocks between said cylinder and the conveyer, and a discharge opening in the fixed cylinder, substantially as described.

In testimony whereof I aix my signature, in presence of two witnesses, this 3d day of June, 1892.

BERNHARD E. FISCHER.

Witnesses:

BENJ. B. KINGSBURY, EDWIN PHELPs.

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