US22825A - Fawning-mill - Google Patents

Description

J. E. RICE.

Grain Winnower.

Patented Feb. 1|, 1859.

rmrrn N FF J. E. RICE, OF ONEIDA, ILLINOIS.

FANNING-MILL.

To all whom it may concern:

Be it known that I, J. E. Bron, of Oneida, in the county of Knox and State of Illinois, have invented a new and Improved Fanning Mill or Grain IVinnowing Machine; and I do hereby declare the following is a full, clear, and exact description of the same, reference being had to the annexed draw ings, making a part of this specification, in which Figure 1, is a longitudinal vertical section of my invention taken in the line as, 00, Fig. 3 Fig. 2, is also a longitudinal vertical section of ditto taken in the line 11 'y, Fig. 3. Fig. 4, is a horizontal section of ditto taken in line a, a, Fig. 1.

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

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

A, represents the case of the machine which is constructed in the usual wayand B, is a shoe placed therein. The shoe B, is of the ordinary form and is supplied with the usual screens a, as shown clearly in Fig. 2. The back part of the shoe is attached at its upper part by a strap Z), to the case A,- and the front part of the shoe is supported by two elastic rods 0, c, the lower ends of which are attached to the case A, as shown at (Z, see Fig. 2, in which one rod 0, is shown attached. In the end of the case A at the outer part of the shoe B, a small vertical shaft e, is placed. This shaft is provided with a crank f, which is connected with the outer end of the shoe by a strap 9. The crank shaft 0, is operated by a belt h, from the fan shaft 71/.

C, is a fan box which is placed at the end of the case A opposite to the end where the shoe B, is placed. This fan case is of the usual semicylindrical form and has a longitudinal opening 2', in its front side so as to admit a blast through the screens a, of the shoe B, see Figs. 2 and 3. At one side of the fan box O a projecting chamber D is placed and the front end of this chamber communicates with a vertical spout E, attached to the side of the case A, and with which spout a short distance above its lower end a spout j, at the back and lower part of the shoe B, communicates as shown in Fig. 3. Within the spout E a curved plate F is placed the lower end of said plate being connected with the spout by a hinge or joint 70. To the upper end of the plate F a rod Z, is attached said rod leaning down below F and connected to a vertical slide m, which works by the side of a ledge 71., between the spout E and chamber D.

The bottom of the chamber D is made of double inclined form and an opening 0, is made at the angle said opening being pro vided with a door 79. The lower part of the chamber D, communicates with one end of a horizontal spout G which is placed below the fan box G, the opposite end of spout Gr communicates with the lower end of a vertical spout H, the upper end of which communicates with the fan box C, as shown at q, Figs. 2 and 3. The upper part of the spout H, is provided with a door or slide r shown in Fig. 3. I is the fan constructed in the usual way and placed in the box C.

The operation is as follows: Power is applied to the fan shaft h through the medium of multiplying gear .9, and the belt it, rotates the shaft 0; the crank f, of which communicates a sort of wabbling motion to the shoe B owing to its connection with the front part of the shoe and the supporting of the same by the elastic rods 0, c, and strap 6. This wa-bbling shake motion causes the screens a, to act most efficiently, the grain as it passes through them being well distributed so that the whole mass will be exposed to the action of the blast generated by the fan I coarse foreign substances separated from the grain and also fine seed, cockle, etc.-, which passes through the lower screen a, and is discharged at a and also the principal of dustthe latter being driven out by the blast from fan I. The grain passes from the shoe B into spout j, and thence into spout E, where it is subjected to a second blast also generated by the same fan I. This latter blast is a suction blast and it draws the light imperfect grain into the chamber D, the light and imperfect grain falling through the opening 0. The capacity of the suction blast to draw the light grain into the chamber D, may be increased or diminished by regulating the height of the slide m, and this effect may also be aided in being produced by the slide 1', the opening of which, to a greater or less degree, will proportionally affect the strength of the suction in E. It will be seen therefore that the light grain may be entirely sparated from the heavy or the better portions of the light grain may be allowed to remain with the heavy grain, in fact the grain may be separated as clearly as may be desired.

5 By this invention it will also be seen that two difi'erent kinds of grain varying in specific gravity may be separated with the greatest facility.

I do not claim broadly operating the shoe 10 B, by a crank but,

Having thus described my invention what 1 I claim as new and desire to secure by Letters Patent is The arrangement and combination of the suction chamber D, spouts E, (j), plate F, and shoe B, substantially as and for the purpose herein shown and described.

J. E. RICE.

Witnesses:

C. J. MERRIMAN, E. R. PRoUTY.

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