US9920A - Winnower - Google Patents

Description

2 Sheets-Sheet l. L. S. INGRAHAM.

Grain Winnower.

No. 9,920. Patented Aug. 9, 1853 N. PFIEHS. pmu-Lmw i har. Wnsblnlon, u. a

2 Sheets-Sheet 2 L S. INGRAHAM.

Grain Winnower.

No. 9.920. r r Patented Aug. 9'. 1853.

- N. PETERS PwKo-Lflhvgnphen Walm tan. D. C.

UNITED STATES PATENT OFFICE.

LEWIS S. INGRAHAM, OF GUYAHOGA FALLS, OHIO.

WINNOWER.

Z0 a whom it may concern Be it known that I, Lnwrs S. INGRAHAM, of Cuyahoga Falls, in the county of Summit and State of Ohio, have invented certain new and useful Improvements in Machines for Separating Grain, Gold, 620.; and I do hereby declare that the same are described and represented in the following specification and drawings.

The nature of my invention consists in making the screen or screens stair-shaped or fluted, and vibrating them perpendicularly or diagonally instead of traversing or shaking them horizontally as heretofore; so that the grain falls successively from one stair or flute to the next, until it passes over all the stairs or flutes in the screen; also in using it in combination with a plain screen which may be used either before or after the stair screen, as may be preferred.

To enable others skilled in the arts to make and use my improvements I will proceed to describe their construction and use referring to the drawings above mentioned, in which the same letters indicate like parts in each of the figures.

Figure 1 is an isometrical view of the machine with my improvements. Fig. 2 is a sectional elevation representing the machine as cut through the center perpendicularly.

A A the posts connected together by the girts B B and C C so as to form a frame as represented, to which frame I fasten the boards D D made in the form represented so as to form the ends of the fan box and the sides of the trough E. I make the circular portion of the fan box of sheet metal bent in the form shown at F, with an opening G for the grain to fall through, and an opening H in the bottom of the trough E (which is also made of sheet metal) for the escape of the small seeds separated from the grain. There is an end board I and two side boards J J fastened to the posts and a bottom board K fastened between the boards J J, between which boards I arrange a traversing shoe L with a screen M in it to separate all the straw and refuse matter from the grain which passes freely through it; while the refuse matter passes over the screen and falls out of the machine at I as the shoe is traversed by the levers O O fastened to the boards D so as to vibrate Specification of Letters Patent No. 9,920, dated August 9, 1853.

freely when acted upon by the cams P, P, upon the shaft Q, which shaft turns in the holes made for it in the girts B. The levers O O are connected to the shoe L by the rod R which passes through the levers and the bottom of the shoe and traverses in slots in the boards J J. The lower end of the shoe L, is supported by two braces like S,t-he upper end catching into the notch T in the bottom of the shoe and the lower end in the notch U in the cleat W, fastened to the board D so that the upper ends of the braces are vibrated by the shoe L so as to Vibrate the stair screen X fastened to the underside of the braces S as represented. The cleat W is hollowed out on the lower slide to receive the curved metal plate Y upon which the lower end of the screen X rests and over which the grain passes as it falls into the fan blast. There are two metallic supports or bars Z Z fastened to the boards D across the apertures a a with holes in them in which the shaft 6 of the fan 0 turns as it is operated by the belt 03 from the pulley 6 upon the shaft Q to the pulley f on the shaft 5 as represented. There is a gate 9 fitted to traverse in grooves in the boards J J which gate may be adjusted so as to regulate the .quantity of grain fed onto the screen M.

The machine having been constructed and completed as above described, the grain to be cleaned is put onto the shoe L which is vibrated and it passes under the gate 9 onto the screen M which retains the straw,

etc., and all matter larger than the grain which passes through the screen and falls onto the inclined board K, while the straw, etc., passes off at the lower end of the shoe and falls out of the machine at N; while the grain descends from the inclined board K onto the stair screen S which permits the seed of weeds and any matter smaller than the grain to pass through it into the trough E and out of the opening H; while the screen is agitated; and while it is fanned by the blast from the fan' 0, and the grain descends from stair to stair, of the screen X and'passes over the curved plate Y into the blast from the fan which blows out every thing lighter than the grain and imperfect kernels; while the good grain descends through the blast and passes out of the machine at G.

lhe machine may be operated by a crank In testimony whereof, I have hereunto 0r pulleys applied to the shaft Q. signed my name beforetwo subscribing Wit- What I claim as my invention and denesses. sire to secure by Letters Patent is, LEWIS S. INGRAHAM. 5 The stair or fluted screen X, constructed Witnesses:

and operated substantially as described for S. C. DONN,

the purposes set forth. H. RATCLIFF.

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