US21202A - Centrifugal smut-machine and grain-scourer - Google Patents

Description

L N. LESTER.

Smutv Maxhirre.`

Patented Aug. 17,1858.

@45K i naar .cnr N In n wr J, Tg1. www? 1 J.` N. LESTER, OF OSWEGO, NEW YORK.

CENTRIFUGAL Sll/IUT-MACHINE .AND GRAIN-SCGURER.

To @ZZ whom t may concern.:

Be it known that I, J. N. LESTER, of Oswego, in the county of Oswego and State of New York, have invented a new and Improved Smut-lvlachine; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in which,-

Figure l, is a vertical central section of my invention. Fig. 2, is a horizontal section of ditto, taken in the line ai, a', Fig. l.

Similar letters of reference indicate corresponding parts in the two figures.

This invention consists in the employment or use of a series of rotating and stationary conical scourers placed within a proper case, the rotating scourers being placed on a hollow shaft and the whole constructed and arranged relatively with each other and with a lfan as hereinafter described whereby the grain will be thoroughly cleansed from smut, dust and like impurities in a very eX- peditious manner.

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

A, represents a framing of rectangular form and sufficiently heavy to support well the working parts of the machine. This framing may be formed of a rectangular bedpiece c, and four uprights b, one at each corner, the uprights being connected at their upper ends by cross ties c. The framing may be constructed of wood.

B, represents an inverted conical metal dish which forms the lower end of the machine, and is tted in the bedpiece a. This dish has an opening CZ, at its lower end and a step e, is suspended to the lower end ofl dish B, by curved bars f, said step being a screw g, tted in a socket 71as shown clearly in Fig. l. To the upper edge of the dish B, a met-al rim C, is attached. This rim has curved sides and it is supported by up-V right lugs or ears z', which are cast with it. The rim C, is so curved as to leave a small space j, between its lower end and the upper end of B, as shown clearly in Fig. 1. To the upper end of the rim C, an inverted conical and a dish or plate D, is attached to C. A

rim C, is also attached to dish or plate D, and a dish or plat-e D, is attached to rim C.

On the under side of each dish or plate D, D, D, a series of pendent and annular scouring ledges Z, are formed. Three ledges are shown in the drawings but more may be used if desired. These ledges may be formed of concentric projections having teeth m, cast with them, the teeth projecting down a short distance below the ledges Z, and projecting outward from `their face sides, see more particularly Fig. 3.

E, is a hollow metal shaft which. is placed vertically and cent-rally within the rims C,

' and plates D, and has its lower end stepped in the screen g. The shaft has a series of inverted conical plates F, F, F, attached. Thesen plates are each provided with three annular upright and concentric scouring ledges n, which are constructed precisely similar to the ledges Z, of the plates D, D', D. The ledges n, of the plates F, fit between the ledges Z, of the plates D, as shown clearly in Fig. l, the teeth n, 0, of the respective ledges being opposite each other.

The rims C, and plates D, D', D, and F, F, F any proper number being used, are encompassed by a cylindrical case G, the upper end of which communicates by passages or tubes p, with a fan boX H. In' the shaft E, holes g, are made, just below the plates F.

I, is a fan placed on the upper end of the shaft E, and within the boX I-I, and J, is aspout which passes through the top of the case G, a curved spout K, from the fan box I-I, communicating with spout J.

L, is the eduction spout of the fan box l-I.

M, is a driving pulley on shaft E.

The operation is as follows: The wheat to be cleaned designated by red arrows passes down the spout J, into the case Gr, and falls on the upper part of the top dish or plate D, the wheat being subjected to a suction blast in passing down said spout, the blast entering spout K, as indicated by arrows l. This blast which is produced by fan I, takes all the loose smut and dirt from the grain before it enters the machine. The

grain passes down the dish D, and through an opening r, between the lower end of the dish and shaft E, and falls on the plate F,

and the grain owing to the centrifugal force generated by the rotation of the plate F,

is forced under and over the scouring ledges Z, n, which form a sinuous scouring surface, the teeth m, 0, serving as corrugations. The wheat passes oft' of plate F, and falls on the dish or plate D, and in passing down said plate is subjected to a suction blast which passes through the holes g, in the shaft E, the smut and dirt that was loosened as the grain passed through the scouring passage being drawn through the space y', and up between the outer sides of the rims C, C', C, and the case G, and through the passages p, into the box H, the smut and dirtbeing ejected from the fan boX through L, the wheat passes successively through the several sinuous scouring passages in the same way as it passed through the one described and is subjected to a blast as it passes down each plate D, D, D, the wheat being discharged through the opening cl.

The shaft E, and plates F, may be raised at any time by adjusting nut g.

This machine performs its work very eflciently and in a rapid manner. The loose smut and dirt being removed previous to the scouring and the grain being subjected to a continuous blast during the whole of its passage through the machine, the smut and dirt cannot be ground into the eye of the grain as is the case to a greater or less extent with all other machines with which I am acquainted.

I do not claim separately the parts herein described for they or their equivalents have all been used under different form of arrangement and in connection with various devices forming the majority of smut machines in use, I am not aware however that sinuous scouring passages arranged with a fan, hollow shaft, cylindrical case and induction blast spout as herein shown, have been used.

I claim therefore as new and desire to secure by Letters Patent,

The rotating conical plates F, F, F, attached to the hollow shaft E, in combination with the stationary conical plates D, D', D, rims C, cylinder case G, and fan I, the plates F, F, F, and D, D, D, being provided with scouring ledges Z, n, and the whole arranged relatively with the fan I, induction spout J, and blast spout K, substantially as and for the purpose set forth.

- J. N. LESTER.

Witnesses:

HENRY ADRIANOE, CHAS. E. SKINNER.

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