US8008A - hollingsworth - Google Patents

Description

J. HOLLINGSWORTH.

Grain Separator.

Patented April I, 1851.

- Specification of Letters Patent .No. 8,008, dated April. 1, 1851.

To all whom it may concern: i y

Be it known that I, JEHU HOLLINGSWORTH, of Zanesville, in the county of Muskingum and State of Ohio, have invented a new and useful Fanning-Mill, which I calla Repeating-Blast Fan and Separator and I do hereby declare that the following is a full,

clear, and exact description of the constructionand operatlon of the samereference being had to the annexed drawing, making a part of this specification, in which Figure No. 1 represents a side view.

F is a blast fan, receiving the air through its open ends and discharging the blast (generated by the revolving wings of the fan) through the opening N M into a large a box or chest M X G H. Suppose this box to be 12 feet high at feet wide and 2 feet deep, it is divided by a partition, making as it were two boxes (in one case) each box being 12 long by 4 wide and 1 deep. The fan blows into the front partition through N M. There are several divisions or aprons in thefront partition which are represented by black lines. The divisions in the back partition are represented by dotted lines. The openings from the front to the backpartition are colored dark with Indian ink. The pipes leading the blast from the back partition to the front are represented by circular lines. The arrows give the direction of the blast from the time it leavesthe fan until it is discharged at the top of the chest. The course of the wheat from its entering into the front partition at the top of the chest until it reaches its discharging point at the bottom is indicated by a stream of black dots (representing grains of wheat). By supposing this large box or chest to be glass (and transparent) the direction of the blast and the course of the wheat can be readily perceived.

First will be shown the direction of the blast through the chest. Starting at the fan and following the arrows, the blast enters the front partition at the open space N M; It immediately ascends (being confined on the upper side by a division N, WV, Q2 also it is confined by the apron or division 0, P) to the top of the apron O, P, passes through the opening Q, P, strikes against the aprona8, 9, finds its way through the opening A (between the front and back partitions) into the back partition, where it is directed by a division (dotted lines) 2,

STA'MEN J. HOLLING$WORTE or ZANEVILLE, orno.

b to the point 6, here there is another opening into apipe,b,Z,I, which conveys theblast from the backpartition to the front again. It entering the front partition a second time at the opening J, Lproceecls up over the. apronor d1v1s1on QR, strikes the apron 6, 7 passes through the hole B,

leading it into the back partition, follows the direction of the division 3, a" (dotted i whereit enters a pipe a,.E K that carries;

lines) in the back partition till it reaches a,

it aroundyto the front partition, where it again (a third time) enters through the opening L, K, into the front partition, passes up over the apron ordivision S, "T, strikes against the apron 4, 5, and passes out. the opening at C, It might be carried by similar divisions, as often as desired, through the front partition and the same be repeated over and over again.

For the purpose of illustration, call the areas confined bythe divisions (in the front partition) Q, W, O, P, S, V, Q, R, U, S, T.

Spouts: It is then seen, that the same blast blows through each ofthese spouts, and also it will be seen that the same wheat passes from the point or hopper H down through a narrow space, just large enough to let it pass into the first spout at (where the blast meeting it cleans it, carries the dust over the apron S, T, drops it into the air chest T, S, 3) the wheat passing by gravity down to V, where it again enters the 2d spout and is cleaned, and then passes on to )V, where it enters the 3d spout, is here cleaned and falls through a small opening at D, where it is discharged. Hence it is perceived by the before described arrangement, that the same blast can be made to clean wheat over and over again, repeating the process as often as you choose to make divisions in the chest. i

The first spoutinto which the wheat falls should be larger (contain more area) than the next before it and so on till the last spout (into which the blast enters first) is reached. The object of this is the same blast being confined in a smaller spout will be stronger than in a larger one and when the wheat first comes into the first spout atthe top (the blast should be comparatively weak) so as to carryofi' the light stufi, straw, white caps, &c., then as it reaches the 2d spout, let it be stronger by making the spout smaller. Here it will carry out heavier impurities, such as cheat, or cockle, &c., then let it pass to 3d soput made still smaller, where the blast being so much contracted, will carry out the lighter grains of wheat, the heavier passing out at the dischargin point D. By this arrangement as to the size of the spouts, any desired grade of separation can be made.

The objection to using a blast more than once, is that it must carry the impurities (it blows out) along with it, and passes them through the grain when it meets it again; by blowing into an air chest, this difficulty is obviated, as the dirt and dust on entering an air chest, fall to the bottom; the blast finding vent at the top, passes out, freed from them.

In the arrangement, herein described, the blast passes through two air chests (one in the front partition, and one in the back partition making a deposit in each of them) before it is allowed to pass through tlie wheat a second time. 1, 2, 3, are small slides at the side of the chest, which can be drawn,

when it is necessary to clean out the deposits that have accumulated in the air chests.

A blast fan is decidedly preferbale to a suction fan, as in the latter all the dust, dirt, and impurities have to pass through the eye of the fan and are discharged by the Wings (which action of dirt and dust on the vwings and inside of the fan case) soon wears it out. Such is not the case with a blast fan.

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

Two or more chambers and areas in combination with a fan, for the purpose of cleaning and separating grain, by using one and the same blast (to clean it) over and over again, any number of times, as herein fully described and represented.

J EHU HOLLINGSWORTH.

Images