US203717A - Improvement in grain-separators - Google Patents

Description

'G.'EOKLE'S;. Grain-Separators.

No. 203,717. Patented May 14, 1878.

WITNESSES INVENTOR E PETERS. PHOTO-LITHOERAfiEF l, WASHINGTON. D, C

UNITED STATES PATENT OFFICE.

GEORGE EGKLES, OF DOVER CENTRE, MINNESOTA.

lM PROVEMENT IN GRAIN-SEPARATORS.

Specification forming part of Letters Patent No. 203,717, dated May 14, 1878; application filed October 27, 1877.

To all whom it may concern:

Be it known that 'I, GEORGE EOKLEs, of

7 Dover Centre, in the county of Olmsted and State of Minnesota, have invented a new and valuable Improvement in Fanning-Mills; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

Figure 1 of the drawings is a longitudinal vertical sectional view of my fanning-mill. Fig. 2 is a side view, and Fig. 3 is an end view thereof.

The nature of my invention consists in certain improvements in fanning-mills, as will be hereinafter more fully set forth and claimed.

The annexed drawings, to which reference is made, fully illustrate my invention.

A represents the frame of my fanning-mill, with hopper B at the top. At one end is the fan-case O, with the ordinary fan D secured upon the shaft (1. One end of the fan-shaft a. projects beyond the side of the frame .A, and is provided with screw-threads to receive a pinion, I), screwed thereon. By connecting the pinion b with the end of the shaft to by screw-threads, said pinion can be easily removed and a larger or smaller pinion substituted, according to the speed required. This pinion is rotated by means of a cog-wheel, E, provided with a crank, and mounted on a stud attached to the frame. The pinion b further meshes with a cog-wheel, E, having a pitmanrod, d, connected to it, which rod connects with an elbow or cranklever, G, pivoted at its angle near the front of the frame. The other arm of this crank-lever is, by a rod, 6, connected with the shoe H, said shoe being suspended, by springs 71. h,within the main frame A. In the bottom of the shoe H is a sieve or screen, I, provided at the top, on its upper end, with a dividing board or strip, 2', extending above the screen, so that the blast from the fan will blow the light wheat, dirt, and seeds over said divider, and thus making the ma chine a complete fan and blower combined. This bottom screen may be inserted in either of two sets of grooves, 00 :10, made in the sides of the shoe to receive it. The top groove is used for a comm on fanning-mill and the lower groove for blowers, as required. Above the bottom screen I in the shoe is inserted a slidin g frame, K, containing two stationary sieves, J J, and below these sieves is a movable sieve, L, placed in grooves in the sides of the frame. Below this latter sieve is a board, M, permanently attached to the frame. The sieve L forms a conveyer, and the board M underneath conveys seeds, &c., clear of the tailings. At the lower or inner end of the frame K, between the inclined feed-board of the shoe and the upwardly-inclined deflector m, and in front of two stationary sieves, J J, is hinged a valve or door, m, which is used for the purpose of shutting off the blast from the grain on the sieves when such blast may not be needed. At each end of the fan-case O is a slide, 0, to be opened or closed, as desired, for more or less blast.

By the conjoint use of the valve m and the sieve I with the divider 1:, which may be pulled out and in, as well as set vertically, the grading of the lighter grain blown over the rear edge of the upper sieves J J can be accurately regulated; and if the valve m be closed, the blast is practically confined in its escape to the space below deflecting-board m. The inclined divider 43 becomes in this case a deflector, and the blast is directed upward at an angle, throwing the chaff and light matters some distance clear of p the machine.

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

The shoe H of a fanning-machine, provided with grooves m :10, a removable screen, I, havin g an inclined back, i, rigid therewith, screens J J L, pivoted cut-off m, and fixed deflector of two witnesses.

GEORGE EOKLES. Witnesses L. GoPPERsMITH, C. H. HAWLEY.

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