US15284A - dempsey - Google Patents

Description

R, M. DEMPSEY.

Smut Mill.

Patented July 8, 1856'.

N. PETERS Pnumulho n her. Wnlllinghzn. D. c.

UNITED sraas r rnur OFFICE. to

R. M. DEMPSEX, OE INDIANAPOLIS, INDIANA.

SMUT-MACHINE.

Specification of Letters Patent No. 15,284, dated July-8, 1856.

To all whom it may concern:

Be it known that I, R. M. DEMPSEY, of Indianapolis, in the county of Marion and State of Indiana, have invented a new and Improved SmutMachine; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawing, making a part of this specification, said drawing being a vertical section of my improvement.

To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A, represents a rectangular framing; and B, represents a vertical shaft placed within the framing at its center; the lower end of the shaft being stopped at (a).

C, represents a cylindrical case or curb which is secured in the upper part of the frame A;and D, is an inverted conical screen formed of wire cloth or perforated sheet metal. This screen is fitted within the case or curb C, as shown in the drawing.

F, represents a concave circular head which is fitted on the shaft B. The upper surface of the head is the concave surface, and vertical spikes or rods (6), are driven in it.

F, represents a stationary head which is fitted on the upper end of the case or curb C. A small hopper G, is placed at the center of the head F, the shaft B, passing through the hopper and having its upper bearing at the center of a cross piece (0), on the frame A.

To the under surface of the head E, wings or fans (cl), are attached, the lower ends of which extend downward nearly to a horizontal plate (6), which forms the bottom of the screen D.

G represents a chamber immediately below the plate (6) ;and H, is a fan box in which a fan I, is placed; said fan being on the shaft B. At the center of the plate (6), there is placed a small perforated cone (f), through the center of which the shaft B, passes;and (g), is a spout which communicates with the space below the concave head. E, and a spout J, which is attached to the side of the frame A; the lower end of the spout J, communicating with the fanbox H. The upper part of the spout J, has a valve K, fitted within it. This valve is formed of a plate equal in width to the spout J, and pivoted at its lower end; the

upper end of the plate having an arm (h,) attached to it.

L, represents a screen placed within the spout J, as plainly shown in the drawing.

The cylinder or curb C, has an outlet or small pipe communicating with it at any proper point, and the upper or concave surface of the head E, and the undersurface of the head F, are grooved or ridged concentrically from their centers to their peripheries.

The spout J, gradually increases in width from its lower to its upper end.

The grain to be scoured and cleansed passes through the hopper G, down upon the concave E, and motion being given the shaft B, in any proper manner, the grain is subjected to the necessary scouring and beating by the rods or spikes (b), and the grain passes, in consequence of centrifugal force, from the center of the head E, toward its periphery and over the edge of .the head and falls into the space below the head and is carried around by the wings (cl), into the spout (g); the grain in its passage'beingsubjected to a blast generated by the fan I, and the smut scoured from the grain by the rods or spikes (b), is blown through the wire cloth or perforated conical screen D, and passes through a pipe or passage communicating with the case or curb C. This is the object of the case or curb, it prevents the dirt and smut from passing through the machine and mixing with the grain after being sepa rated from it. The grain deprived of smut and dirt passes through the spout (g), and falls into the spout J. The heavy, sound grain resisting the force of the blast generated by the fan and falling from the lower end of the spout J, while the chaff, light or imperfect grain, cockle etc., will be blown upward in the spout J; the light foreign substances passing out of the top of the spout, while the cockle and heavier substances will pass through the screen L, and will be discharged through an aperture The blast in the spout J, may be increased or diminished as desired, by regulating the valve or plate K, and thereby expanding or contracting the spout J ,and the spout (g), may be curved as shown in the drawing so as to check the passage of the grain through it, thereby preventing the grain from descending too rapidly into the spout J.

The above machine is extremely simple, inverted conical screen D, the head E, hav- 10 portable, economical to manufacture, opering Wings (cl), attached to its under sides as ates well, and there are no parts liable to shown and its upper surface corrugated as get out of repair. shown or in any other manner for the pur- 5 Having thus described my invention What poses specified.

I claim as new and desire to secure by Let- R. M. DEMPSEY. ters Patent is, Witnesses:

The concave head E, having vertical rods CHARLES FISHER, or spikes (6), attached and fitted Within an EDW. DAVIS.

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