US5238A - Apparatus for drying grain - Google Patents

Description

October '20, 1913. I

DRAWING P A careful search has be n made this day for the original drawing or a photqiithograyhi copy ofthe segue, for the purpose of reproducing the said drawing to form a.

part of this book, but a; this time nothing can be found from which a, reproduction can be made.

Finis D. Eiorris,

Chief 0f Division B,

AWK

JAMES R. STAFFORD, OF CLEVELAND/01110.

APPARATUS FOR DRYING GRAIN, FLbUR, &c.

Specification of IiettersPatent No. 5,238, dated August 14, 1847.

To all whom it may concern Be it known that 1, JAMES R. STAFFORD, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented a new and Improved Apparatus for Drying Grain, Flour, Meal, or other Substances or for Cooling the Same; and I do hereby declare the following to be a full, clear, andexact description of the construction and operation thereof, reference being had to the ac companying drawings, making a part of this specification, in which Figure 1, is a perspective view of the apparatus, and- Fig. 2, a portion of the same detached.

A, is a cylinder, composed inch boiler iron,or other suitable metaltwenty inches in diameter and twenty feetin length. The cylinder is put together in such manner as to render it perfectly steam tight; the ends of the cylinder are riveted to the heads a, a, and 'corked so as to render the connection perfectly tight. The heads 0;, a, are of cast iron,about half an inch thick. I), b, are hollow bearing journals cast solid with the heads a, a.

0', 0 0 &c., are horizontal radial fianches, secured at regular intervals upon the periphery of the cylinder; 2, 2, 2, &c.,, r

are helical or screw fianches secured to the periphery of the cylinder, passing around the same from one end to the other, and in-' tersecting the horizontal fianches c, c, at a uniform distance from each other. The fianches are three inches in height. The horizontal fianches o, 0, have lips secured to their outer edge projecting at right anglesmore or less-one inch over the face of the same, I generally make the fianches of cast iron of inch thick. The horizontal fianches o, c, I rivet to the periphery of the cylinder,the helical fianches are cast in sections and secured to the horizontal fianches. If preferred however, the fianches may be constructed of sheet metal.

The cylinder A, is placed in a trough or box B, constructed of wood, or other suitable nonconducting material, of the form represented in Fig. 1, in the accompanying drawings. The concave form of the bottom of the box B, corresponds to the convexity of the outer edges of the fianches on the cylinder. The journals 6, b, have their bearings in the ends of the box B. Suitable pipes are connected to each of the hollow journals 6, b, for the purpose of conducting steam or hot air into and from the cylinder, when the apparatus is used for drying different substances; and for conducting cold air into the same, from some blowing machine, when the apparatus is used for cooling meal, flour, or other substances.

The cylinder is revolved in the direction of the arrow; the materials to be'operated upon, are admitted on to the cylinder at d,

the action of the helical fianches 2, 2, 2, gradually moves the grain or other material from one end of the box B, to the other,

the horizontal fianches c, 0, 0 at the same 5 time serving to keep every portion of the surface of the cylinder covered with, and balanced by, the substances acted upon, so that the same shall receive the entire radiation from the cylinder; and they also serve to agitate the substances as they fall from thereby causing every particle of the same to be equally acted upon. The open top of the box or trough B, allows the moisture freely to escape, while the process of drying is going on; and the heat to escape while flour or other substance is being cooled.

f, is the discharging spout in the end of the box or trough B, through which the various substances are discharged after hav ing been operated upon as herein described.

I sometimes omit the helical fianches and place upon the cylinder A, a series of hori- B, in which it revolves, a suflioient inclination to cause the grain, flour, &c. operated upon to be gradually moved forward and discharged at the lowest end of the trough. A slight winding or diagonal direction may be given to the horiozntal lipped fianches, whet-herused by themselves, or in combination with the helical fianches, if-preferred. IVhat I claim as my invention and desire to secure by Letters Patent, is-' g The method of drying or cooling grain, flour, meal or other substances, on the external surface of a hollow cylinder (A,) armed with fianches or other devices, arranged and operating substantially as herein described, and combined with a trough,

(B,) the cylinder to be filled with hot air F JAMES R, STAFFORD.

. Witnesses:

I. W. ALLEN, L. C. TURNER.

75 one fianch to and between the others,

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