US1492621A

US1492621A - Grain cleaner

Info

Publication number: US1492621A
Application number: US449352A
Authority: US
Inventors: George B Allison
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-03-03
Filing date: 1921-03-03
Publication date: 1924-05-06
Anticipated expiration: 1941-05-06

Description

G. B. ALLISON GRAIN CLEANER May 6 1924.

Filed March 5. 1921 t w v n Patented May 6, 1924.

GEORGE B. ALLISOLLOF Annxnnnmni vrnerfnra.

, GRAIN ennnnnapf Application filed March 3, 1921. Serial No. 449,352.

To all whom it may concern:

Be it known that I, GEORGE B. ALLISON, a citizen of the United States, residing at Alexandria, in the county of Arlington and State of Virginia, have invented a new and useful Grain Cleaner, of which the follow ing is a specification.

The device forming the subject matter of this application is adapted to be used for cleaning or screening grain, and the invention aims to provide novel means whereby a fine adjustment: may be obtained between relatively movable members whereby the cleaning or screening operation is brought about.

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the invention appertains.

\Vithin the scope of what is claimed, a mechanic may work changes in the struc ture shown, without departing from the spirit of the invention.

In the drawings :Figure 1. shows in top plan, a device constructed in accordance with the invention; Figure 2 is a section on the line 2-2 of Figure 1.; Figure 3 is a section on the line 3-3 of Figure 1; Figure 4 is a sectional detail taken through the trough and attendant parts; Figureo is a sectional detail illustrating one of the supports.

The device includes a lower frame made up of tubular cross members 1 connected by tie rods 2. A trough 3 is located at one end of the lower frame and has a flange 4 secured to the members -1. Supports are provided, each including a body 6, a curved arm 7 and a straight arm portion 8. The arm portions 7 are secured to the outermost cross members 1 of the lower frame. Screws 9 are threaded into the arm portions 8. The walls 10 of a box or a part of an agricultural machine are adapted to be engaged by the screws 9, and, thus, the cleaner is held in place.

The cleaner includes an upper frame made up oftubular cross members .11 connected by tie rods 12 and by an end bar 14. the bar 14. being located remotely from the trough 3. The members 11 of the upper frame are disposed in alternating order with respect to the members 1 of the lower fran'ie and are of smaller dimeter than'the said members ,1.

Screws

15 and 16 are threaded into the.

terminal cross members 11. The screws 16 are journaled in the flange l of the trough 3 and have enlarged heads 17 held for rotation in foot plates 18, secured to the flange 4. The screws 15 are threaded into the members 11 of the upper frame, as aforesaid, and are journaled in bridges l9 connecting certain of the cross members 1 of the lower frame, the screws being held against endwise movement in the lower frame by foot plates 20 on the bridges. the construction being like that shown in Figure 4.

The cleaner slopes downwardly toward the trough 3 and the grain moves longitudinally of the members 1 and 11. The material passing bet-ween the members 11 and 1 falls downwardly between the members 1. whereas, the material which is too large to pass between the members 11, or between the members 11 and 1, moves into the trough 3. The space between the members 11 and 1 may be adjusted to a: fine and minute degree by rotating the

screws

16 and 15, the upper frame being adjusted with respect to the lower frame, in this way.

Noting Figure 5 of the drawings. it will be clear that this cleaner may be fastened readily-to the box of a fanning mill, the screws 9 affording the necessary adjustment whereby the cleaner may be placed and held on fanning mill boxes of different widths. Generally stated, the cleaner is adjustable, within limits. to fit any size of fanning mill.

Having thus described the invention, what is claimed is 1. A grain cleaner embodying upper and lower frames comprising cross members, the cross members of one frame alternating with the cross members of the other frame: a trough located at one end of the cleaner and including a part engaging the cross members of the lower frame; a bridge connecting certain of the cross members of the lower frame; and screws held for rotation but against longitudinal movement in said part. of the trough. and in the bridges, the screws being threaded into the cross members of the upper frame.

2. A grain cleaner embodying upper and lower frames comprising fixed cross me1nhers. all of the cross members being of circular cross section, the cross members of the upper frame being of smaller diameter than the cross members of the lower frame, the cross members of one frame being disposed in alternating order with respect to In testimony that I claim the foregoing the cross LIEU-(113613 oi the othel firamq; meape as my own, I have hereto affigted my signafor holdingfthe,crqse thembers aggtinst'ji'ota} ture in the presence of two; Witnesses.

tion; and means mounted directly inf eertain of the said eross members of the frames for: GEORGE E. ALLISON. producing relative movement between the Witnesses; frames, thereby to adjust the space between. 15 1' E. SIMPSON,

the cross members of the different fl' -ames. AGNES ROCKELLI.