US154762A - Improvement in cotton-harvesters - Google Patents

Description

3Sheets--Sheet1. l. H. MITCHELL.

Cotton-Harvesters.

No.154,762, Patented Sept.8,1 8 74.

Witnesses: Inventor Per/ Q Attorneys.

THE GRAPHIC C0. FHOYO -LITH. 35 & 4X PARK PLACE, MY.

3 Sheets- Sheet 3.

n. MITCHELL Button-Harvesters.

Patented Sept. 8 ,1874.

7' Witnesses:

Inventor: Z

Annrneys.

THE smrmc common-Purim 4| PARK eucs. MY,

UNI ED STATES PATENT QFFICE.

JOHN H. MITCHELL, OF FRIARS POINT, MISSISSIPPI.

IMPROVEM EN T IN COTTON-HARVESTERS.

Specification forming part of Letters Patent No. 154,762, dated September 8, 187 4; application filed I October 4, 1873.

To all whom it may concern:

Be it known that I, JOHN H. MITCHELL, of Friars Point, in the county of Coahoma and State of Mississippi, have invented a new and Improved Cotton-Picking Machine, of which the following is a specification:

The invention will first be fully described, and then pointed out in the claims.

Figure l is a longitudinal sectional elevation of my improved cotton-picking machine, the section being taken on the line 00 m of Fig. 2. Fig. 2 is a front elevation. Fig. 3 is a longitudinal sectional elevation of therevolving brushes. Fig. 4 is partly a plan view of the bottom and partly a horizontal section.

Similar letters of reference indicate corresponding parts.

A represents a truck on four wheels, B G, the wheels being on short axles, so as to provide a channel or receptacle, D, along the bottom, about as high as the cotton-brush, for the machine to pass over the rows. The front of said channel flares out to gather in the brush. Behind the truck is a large horizontal concave brush-roller, E, also a convex brush-roller, F, and also an endless-belt brush, G, suspended in the hood H, which is pivotedon the axis I of the hind wheels of the truck, and suspended at the top by the endless rope J from the roller K on the upright frame L at the front end of the machine. The revolving brushes are geared by a train of wheels, M, with one of the hind truck wheels, and the endless brush is geared with one of said wheels by a belt, N, and pulley 0, so that they may be raised and lowered at will without interfering with the gearing. They are raised and lowered by revolving the drum K one way or the other, said drum having one part of the rope J wound on a small cylindrical portion, 1?, of it and the other part on a spirally-grooved part, Q, by which the length of the rope is varied. The drum is turned by the crankshaft R and the endless rope S. The lower rubber Y for breaking the balls and separating it from them, and from these saws it is brushed off into the main receiver Z by the revolving brush Z while the matters sepa rated fall into receptacles below to be discharged from the side of the box from time to time. Said brush and the saws are driven by a belt, Z from one of the hind truck-wheels.

The apron V is of flexible material and hangs at one end from the rod a, so as to draw forward and back as the hood swings toward and from said rod, thus adapting itself to the varying distance between the part b of the hood to which the apron is attached and the chute W.

The machine is designed to be used after frost, when the cotton strips easy, and will probably run over the rows twice, once each way.

Having thus described myinvention, I claim as new and desire to secure by Letters Patent- 1. The rotary concave and convex pickingbrushes E F and endless brush G, combined with a truck, and operated substantially as specified.

2. The combination of the flexible apron V, with the brush -F and the chute W, substantially as specified.

JOHN H. MITCHELL.

Witnesses:

' GEORGE WINSTON,

JAMES A. BERRY.

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