US36052A - Improvement in screens for separating oats from wheat - Google Patents

Description

.A. G.-FERRE-N.

Grain Screen.

No. 36.052. Patented July 29,1862.-

Willi! PEYERS Photo-Lilhugmphun w D C UNITED STATES PATENT OFFICE.

A. O. FERREN, OF DEOORAH, IOWA, ASSIGNOR TO HIMSELF AND F. M. CLARK.

IMPROVEMENT IN SCREENS FOR SEPARATING OATS FROM WHEAT.

Specification forming part of Letters Patent No. 36,052, dated July 29, 1862.

To all whom it may concern:

Be it known that I, A. G. FERREN, of Decorah, in the county of Winneshiek and State of Iowa, have invented a new and useful Improvement in Screens for Separating Oats and Cockle from Wheat; and I do hereby declare that the following is afull, clear, and exact description of the same,'reference being had to the accompanying drawings, making a part of this specification, in which Figure 1 is a plan or top View of my invention; Fig. 2, a side sectional elevation of the same, taken in the linear t, Fig. 1; Fig. 3, an end View of the same.

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

This invention consists in attaching aseries of parallel vertical strips to the upper surface of the screen at such a distance apart that the oats and cockle will be prevented from passing down on the screen sidewise, but retained lengthwise, and thereby prevented from passing through the screenwith the wheat which, being nearly round, can pass through the screen,while the'oats and cockle,being oblong, cannot pass through, and are discharged from the depressed end of the screen.

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

A represents the frame of the screen,which may be of rectangular or other suitable form, and or represents a series of wires, which are secured transversely to the frame A at a suitable distance apart. The upper or feed end of the screen has a board or plate, I), attached, which receives the grain to be screened, and this board is directly underneath the hopper, into which the grain is placed and from which it passes on the screen.

To the upper surface of the frame A there is attached longitudinally a series of vertical plates, 0. These plates extend the'whole length of the screen, and they are placed at such a distance apart that oats and cockle will be retained upon it in a lengthwise position, the space between the plates not admitting of the oats and cockle turning sidewise. (See Fig. 1, in which an oat, d, is shown in red.)

The oats, it will be seen, are longer than the width of the spaces between the wires a, and consequently they will be prevented from passing through the screen. The same may be said of the cockle. The spaces between the wires a, however, are sufficiently wide to admit of the wheat passing down between them, and as the grains of wheat are nearly round and much shorter than the oats, they can turn between the plates 0 and pass through the screen as The invention,although exceedingly simple,

may be applied to a screen at a small cost.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In combination with a screen, a series of parallel vertical plates, 0, attached to the frame A of the screen, to operate as and for the purpose herein set forth.

A. O. FERREN. Witnesses:

J. BEEMER,

D. H. HUGHES.

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