US1611979A - Grain separator - Google Patents

Description

Dec. 28. 1926. 1,611,979

J. M. WYMAN GRAIN I SEPARATOR Filed April 29: 19 26 2 Sheets-Sheet 1 elite (Ma smocutoz Patented Dec. 28, 1926.

JOHN M. XVYMAN, OF PEKIH, INDIAIQFA.

GRAIN snr'nan'ro'n.

Application filed April 29, 12-28. Serial filo. 105,455.

This invention relates to thrashing ma.- chines or grain separators, and aims to improve generally the construction illustrated in my copending application filed May 26, 1925, novel means being provided to insure against the grain which is being thrashed from collecting on the inside of rotary beaters during the thrashing operation.

Another object of the invention is to provide means whereby any material passed between the ends of the rotary heaters and the body of the machine will be thrashed in passing through the machine.

Another object of the invention is to prevent a comparatively dead air space in interior of complete revolving cylinder or rotary element, by the additions of one or more extra rods to each beater, thus preventing grain from passing through the body of rotary element unthrashed.

lVith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawings:

Figure 1 is a longitudinal sectional view through a machine constructed in accordance with the invention.

Figure 2 is a sectional view taken on line 22 of Figure 1.

Figure 3 is a vertical sectional View through a modified form of the invention.

Figure 4 is a vertical sectional view through a further modified form of the invention.

Figure 5 is a fragmental sectional view illustrating the depressions formed in the bearings for thrashing grain.

Referring to the drawings in detail, the

reference character 5 indicates the side mom bers of the machine between which the rotary beater, forming the subject matter of this invention, operates.

Grain is fed over the inclined bottom 6 which is connected with the concave 7 that is formed with ribs 8 that cooperate with the pivoted heaters 9 to thrash the grain that passes over the concave 7. The rotary beaters are connected with the hubs 10 that in turn are secured to the shaft 11 which moves Bods 15 extend through openings in the hubs 10, the outer end of the rods 15 providing supports for the pivoted beater elements 16, each of which comprises a substantially U-shaped member, the main bar 17 thereof having its inner edge tapered as shown more clearly by Figure 1 so that grain will not collect thereon during the rotation of the beaters.

One or more rods 18 connect the side members of each beater to further brace the heaters so that they will withstand the strain brought to bear thereon as the heaters are being rotated, and also prevent a dead air space, thus preventinggrain from passing through complete rotating element, unthrashed, while machine is in operation.

Vertical baffles 19 are arranged above the rotary beat-er and cooperate with the beater in preventing the material being thrashed from being carried to the forward part of the machine by the continuous rotation of the beater.

In the form of the invention as illustrated by Figure 3, the upper edges of the bars 17 are inclined as at 20 to insure against the grain being thrashed collecting on the inner edges of the bars 17. In Figure 4, the upper edges of the bars 17 are rounded as at 21, which is another method of constructing the inner surfaces of the main bars of the heaters to cause the grain to slide therefrom.

As shown by Figure 5, the plates 13 are provided with grooves 24 which also act to catch grain which may be thrown between the ends of the rotary heaters and plates 13. to thrash the material.

From the foregoing it will be obvious that as material is fed into the concave 7 the heaters which are rotated by means of the pulley 22 and belt passing from a suit able power device not shown, will strike the material and knock the grain therefrom.

iii)

As illustrated by Figure 1, the connection between the member 6 and concave 7 is in the form of an inclined board 23, to the end that grain cannot collect on this member I claim In a grain separator, a body-portion, an inclined bottom member over Which material is fed forming a part of the body portion, a concave supported adjacent to the inner end of the inclined bottom member, said concave having a plurality of spaced ribs, a rotary beater including pivoted beater elements mounted to operate above the concave, bearing plates supported adjacent to the ends of the rotary beater, said bearing plates having grooves formed therein, and said beater elements adapted to cooperate with the bearing plates to thrash grain from the material that falls between the rotary beater elements and bearing plates.

In testimony that I claim the foregoing as my own, I have hereto aliixed my signature.

JOHN M. WYMAN.

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