US103866A - Improved thrashing-machine - Google Patents

Description

J. S. FULTON. THRESHING MACHINE.

No 103,866. Patented June 7, 1870..

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ttuweg To all whom it may concern:

JOHNS, FULTON, osent.LATIN,` NEWYORK.-

Letters .Patent No.`103,8`66, dated June 7, 1870.

Heyy- IMPROVED THRASHING-MACHINE.

The Schedule referred to m these Lettera Parent and making part of the same- Be it known that I, JOHN S. FULTON, of Gallatin, in the conntyof Columbia and State of New York-,have invented a new and Improved Thrashing-Machine; and I do hereby declare that-the following is a full, clear, and exact description thereof, which will enable others skilledin the art to make and use the same, reference being had to the accompanying drawing forming part Of this specification, in which- -Figure l represents a plan or top view of my im'- proved thrashing-machine, without the concave, which is shown in Figure 2 in an inverted plan view.

'Figures and 4 are vertical transverse sections of` respectively, above the saine, showing the concave, and below the thrashing-cylinder.

lSimilar letters of' reference indicate corresponding parts.

This invention relates to a new thrashing-machine,

l into which the straw is fed transversely,"so thatit will not in the least be injured or broken bythe thrashing process, which will be very complete and satisfactory.

By leaving the' straw unbroken, the value of the same is greatly increased, and, consequently, also the value of the machine. 4

The invention consists in the arrangement of the concave, which has a series of unbroken ribs and grooves, in which the straw can be rolled without being broken.

lhe invention also consists in making said ribs of unequal size, so as to gradually obtain the desired action, which, if sudden, might beinjurions to the grain.

A in the drawing represents the frame of the machine. `In it is hung the shaft ofthe horizontal thrashing-cylinderB, which is revolved by suitable machinery.

On the'cylinder are arranged, at certain equal distances apart, projecting ribs a a, which are perfectly straight, smooth, and parallel with the axis Ot' the cylinder. Onthe frame is supported, either above the thrashing-cylinder, as in fig. 3, or below the same, the' concave O, which is a block, with a concave inner face.

In this concave fface are arranged longitudinal ribs b '11, as shown, the said ribsheing also unbroken and' smooth, as those ofthe cylinder.v

l' 4and thoroughly.

The ribs in the concave are not all of equal size, but increase gradually toward the middle, as is clearly shown in tig. 1, and again from the middle toward the Outer or vdischarge end. In the middle is a separate section of equal-sized ribs.

The several (three or more) sections are, as in fig. Y `2, a small space apart.

The 'straw is .fed transversely, that is 'to say, parallel with the ribs,'and the gradually-increasing ribs.

of the first section roll out the grain gradually.

1 In the space between they rst and second sections u the ears can be changed, so that they will not always be in the rame position, and the second section, consisting of smaller ribs, will separate almost all grain left by the rst section.

lhethird section If the concave is used below the cylinder, it is placed upon springs c c, which hold it against the cylinder In that case a cap, D, should be placed over the cvlinder, as shown.

The grain and straw are` discharged iom the machine in good Order, causing no loss of the products OE the farms.

Having thus described my invention, I claim as new and Patent-.

' 1. The cylinder B having longitudinal smooth-faced ribs a a, parallel to its axis, in combination with a concave, having corresponding longitudinal smoothfaced-,ribs thereon, so as toroll the straw with as little as possible of rubbing-friction, toavoid cracking the grain or breaking the straw, 'all asset forth.

2. A concave, C', Of a thrashing-machine, having longitudinal-ribs thereon, running at right anglesto the plane of rotation of the cylinder, and arranged in three sets, the -first having ribs increasing in size toward the center, 'themiddle having ribs of uniform size, and the last set increasing in size to the outlet,

all as shown and described. VJOHN S. FULTON.

Witnesses:

FRANKLIN SAGENDORF, J OnN A. STADE.

perfecte the operation graduallyA desire to secure by Letters

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