US6232A - richardson - Google Patents

Description

I. J. RICHARDSGN 2 Sheets Sh t l, THRESHING AND GRAIN-SEPARATING MACHINE NO. 6,232. PATENTED MARCH 27, 1849 I. J. RICHARDSO 2 Sheets sheet 2,

THRESHING AND GRAlN-SEPARATING MACHINE PATENTED MARCH 27, 1849 srArn-s PATENT orrrca.

'- r. J. morman'son, or NEW roan, NQY.

THBESHING ARI) GBAIN-SEPABATINQ' MACHINE.

' Specification of Letters Patent No. 6,282, dated March 27, 1849. a 3 y c.

v To all whom it may con'cewi:

Fig. 2 is a side elevation.

rier The nature of my invention consists in arranging and combinin a threshing machine, straw carrier, and ii dles, fan, and screen, in 'a compact, portable form; the straw carbeing of an entirely new construction, for the pur dse of combining lightness with efficiency 0 action; a contrivance being also added, by which the machine is readily moved about and loaded onto a Waggon, or unloaded, as may be desired. p

The frame (a) of my machine, containing the threshing cylinder, straw carrier, and

, cleaner, will not exceed five feet in len th,

if properly constructed. It consists of our posts, with proper caps and rails, as represented in Fig. 2; near one end of this frame the threshing cylinder b) is situated, of ordinary construction, and havin a feeding board or hopper (0) in front 0 it, and a concave (21) below; from the inner edge of this concave (d) a grating (e) composed of thin slats placed on edge, extends under a revolving rake (f) placed immediately behind the threshing cylinder, and thence un-' der a second revolving rake, and then rises in a convex line to the back post of the frame whence it sweeps round upward in a semi-circle concentric with the second rerevolving rake (g), by means of which the straw, which follows the course indicated by the red arrows, is'carried up and turned .over, passing forward again and discharged through 'a narrow opening onto a stationary cap or' apron (h) the uses of which will hereafter be more fully explained, from whenceit is taken by a third revolving rake (2') and carried upward and again turned over, guided by a segmental grating (10) and thrown out of the machine at the' opening (Z) Under or behind each of the revolving rakes, there is a bar (m) situated in the gratings (a and k) to which are attached a row of spiral spring teeth (012/) each tooth being coiled around the bar once or twice a in a recess made for that purpose, and with the end projecting, as shown in Fig. 1, by wh1ch elast1c1ty is given to the teeth, and bV Wh1Ch the straw, as it passes the revolvirig rakes, is the more effectually agitated to enable thegrain to escape. The teeth of all three of the revolvingrakes are set tangen-v tial instead of being placed radial as in ordinary" revolving rakes; but this feature is not new. The revolving rakes are propelled by means of a band from-the threshmg cylinderor may be geared to it by cog wheels to subserve the same purpose.

It is well known that in threshing the rain, as. it passes the cylinder is thrown in all directions, and if unimpeded, to great distances, hence the supposed necessity that has been found in carrying the straw to great distances and shaking it continually tocause its complete separation from the grain, and hence the machines that have been hitherto constructed for this purpose have uniformly been made of large dimensions and unwieldy size, rendering them inconvenient in removal or transportation; and even with the best straw carriers much grain is carried away with the straw; this is obviated by my apparatus by the course the straw is made to take, combined with the apron (h) above named, which stops the grain from flying up, and lodging in the straw; and without this apron it is found impracticable to prevent the grain from lodging in the straw, and passing OH with it, even if carried to a great height; but with the apron (7a) placed as above indicated, the whole is brought within a small compass, and the grain is effectually prevented from escaping-its use is therefore indispensable.

The'graui, when past the cylinder, falls.

through the rating onto an endless revolving apron (o placed below it which carries the shoe screen (p) onto which it falls throng grain backward in the same direction with the straw till itcomes over the shaking a current of air from the fan, when it is winnowed and screened, and passes down into an inclined lateral trough (g) at the end of the screen, whence it is gulded out to one side into an elevator, the case (r) ordinary bell crank,

of which is shown in 2. i This elevator is of ordinary construction, and therefore needs no particular description, as it is well known to all ordinar machine makers; it is driven by a band 8) from the third revolving rake; its use is to elevate the grain into a short trough (t) whence it is discharged into a bag, or other convenient receptacle.

The shoe of the frame at (u) and is shaken by the a well known device, and not represented in the drawing. The fan (a) is placed directly under the feeding board (a) and is attached to the front posts; from it a wind trunk (w) extends backward to the screen, against the upper side of which it directs its blast; the fan is driven by'a band ('0') Fig. 2, from the first revolving rake.

'The two lower side rails (a' a) of the frame are jointed to the hind posts and slide up and down in long mortices in the front posts, shown by slotted lines in the drawing. About the center of the length of these rails there is a roller (m) that reaches across from one side to the other, where the front ends of the rails are forced down to the lower part of the mortise, and indicated by the-red lines (a" m) Fig. 1, the whole machine may be made to rest on said roller (:20) and by means of which it can readily be loaded upon a Waggon or moved about from place to place. When not wanted in (u) is pivoted on the'front bar "as to cause the strawto turn working position the ends of. the rails are raised to the tops of the mortises described, and there made fast by pins or other means which su ports the roller above the ground, leaving t e machine at liberty to rest firmly on its feet.

Having thus fully described my. improved apparatusfor cleaning grain, what I claim therein as new, and for which I desire to secure Letters Patent, is

1. The straw carrier, constructed and arranged as above described, consisting of three or more revolving rakes, so arranged over in its passage out of the machine, substantially in the manner and for the purpose set forth.

2. I claim in combination therewith, the apron (h) as above made known. I also claim the elastic teeth (m) placed opposite the revolving rakes for lightening the straw, combined wlth the teeth of said revolving rakes and arranged as above specified.

3.\.I also claim, in combination with the above named straw carrier, Fig. 2, the revolving apron (0) for conveying the grain to the screen, as set forth.

4. I claim the movable lower side rails (a') and roller (an) attached thereto, for the convenience of moving the machine, as herein before described.

ISRAEL J. RICHARDSON. Witnesses:

J. J. GRUNOUGH. T. G. Dorm.

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