US34764A - Improvement in clover-machines - Google Patents

Description

M H. MANSFIELD.

Clover HuHer.

Patented March 25, 1862.

AIWI will? N, PETERS, Phnkrllhogmphur. Walhillgun. D. C.

accompanying specification, in which- UNITED STATES ATnNr CEO* MARTIN MANSFIELD, OF ASHLAND, OHIO.

llVlPROVEIVlENTlN CLOVER-VIACHINES.

Specification formingpart of Letters Patent No. 3-ll.761, (lated March 25, 1862.

.To all whom, .it may concern:

` Be it known that I, MARTIN H. MANsFInLD, of Ashland, in the county of Ashland and State of Ohio, have invented new and useful lmprovements in Glover-Hulling Machines, (the same being an improvement on a similar machine for which a patent was granted to nie under date of June 6, 18116;) and I do hereby declare that the following is a fiill and complete description of the construction and operation of the same, reference being had to the drawings, making part of t-his Figure l is a side view. Fig. 2 is a view of opposite side of that shown in Fig. l. Fig. 3 is atop view. Fig. 4c is a vertical section in the direction of the line x w in Fig. 3. Fig. 5

. is an enlarged view of one of the teeth. Fig. '6 is the cylinder detached, and Figf a section of the concave detached.

Like letters denote like parts in the several views. p v

The nature of my invention relates to the following-named parts: first, to the herein-described construction of the cylinder-teeth, so that while one part is being worn the other part is being sharpened, the teeth being made double; second, to such an arrangement of the teeth upon the cylinder that the teeth themselves can be reversed, or by reversing the ,cylinder itself the teeth will thereby be reversed in their action; third, suspending the cylinder by means of self-adj ustable bearings at the extreme ends of the`shaft iu such a manner that the shaft and boxes will always be in line with each other; fourth, in the introduction of a secondary hopper and feedingreel, by means of which the machine is uni.

formly fed, and at the same time stones and other hard substances separated from the clover-heads and prevented from entering into the machine.

The general form and y structure of the machine are shown in Figs. l, 2, and 3.

A, Figs. 3 and 4, is a wirecloth screen which separates the coarser chaff and stems from the separated seed.'

B is a fan-wheel, put in motion by means of a belt, B', for separating the lighter chaff' and dust from the seed.

C is the cylinder armed with the double reversible teeth F, `the shaft of which cylinder is hung in self-adjusting boxes D D, andhaving the driving-pulley E inside ofthe bearings.

These boxes are solid pipe-boxes, and are supaction either section of the teeth at pleasure. The cylinder O is armed with peculiarly-- shaped teeth F, Figs. 4,5, and 6. These teeth are double-wedge shaped-that is, they are thickest in the middle and taper towardla point at both ends-and have angular serrated sides, as seen at G, Fig. 5.

-I, Fig. 5, shows the thickest part ofthe tooth, and l F- the thinner ends. These teeth are secured .in regular order to the surface of the cylinder in any convenient manner.

The teeth of the concave K, Fig. 7, are i wedgeshaped, and have also angulaiserrated faces, the thinner end being presented to the direct motion of the cylinder, and these teeth are so placed that the teeth attached to the' cylinder will pass between them in the direction of the arrow in Fig. 7, the thin ends of the cylinder-teeth entering between the thin ends of the teeth of the concave, the space between them when they first enter being about' one inch, but as the cylinder rotates the space between the thicker ends being contracted to about one-quarter of an inch, and in this way the clover-heads or other substance is subs jected to a sufficient amount of friction to separate the seeds without injury to the latter.

The concave K K2 is made in two parts. The.

upper part, K', is so connected with the upper part of the framework as to be detachable from the lower section, K2, thus making the concave in two primary sections, sothat the upper one can be easily removed for the purpose of getting at the cylinder in order to re- /verse its position or change the teeth. AThe concave is also divided into secondary sections or lugs, as seen in Fig. 7, which sections are so made as to slide in and out in agroove in the sides of the frame at the ends of the concave or cylinder-case. At each end of the lug is a tenon which ts into a corresponding groove at the ends of the concave or cylindercase.

When the machine is at work, the cylinder C moves in the direction of the arrowsin Fig. 4, and the wear will be on the serrations of the tooth from l to l2, and the tooth from l to I2 will be worn in the same direction-that is, the points L will be worn off in the direction shown in Fig. 5 iu the enlarged section-thus reducing the angles to a more obtuse form, and thus lessening their action upon the material acted upon; but by reversing the teeth,

the sharper angles L are thus brought into action, and thus by the very friction of the teeth upon the material acted upon a selfsharpening process is accomplished.

No difficulty will be experienced in bringing the shaft of the cylinder C into line with the boxes, for these, as before described, are selfadj usting. These changes in the position of the cylinder may continue to bemade as often as the teeth become worn until the angles are nearly worn off, thus making the ma chine much more durable and effective than it would be in the old way, as described in my former patent.

M, Figs. l,- 2, 3, and 4., represents the primary hopper. To this is attached a secondary hopper, N, in which is placed a revolving feeder, 0, having suitable bearings at the ends of its shaft. This revolving feeder is armed with radial teeth which sweep around in the concavity'P in the direction indicated by the accomplished by hand; and still another advantage of very great importance is gained by use of the revolving' feeder.

Stones and other hard substances, which would otherwise pass into the machine and become wedged between the teeth of the con- I cave and the teeth of the cylinder C, are collected in the concavity P, from whence they can from time to time be removed by the hand of the operator.

What I claim as my improvement, and desire to secure by Letters Patent, is-

The reversible cylinder C, in combination with the self-adjustable boX .D, and primary and secondary hoppers MIl N, with revolving feeder O, as and for the purposes `set forth.

M. H. M ANSFIELD.

" Witnesses z,

W. H. BURRIDGE, A. XV. MOOLELLAN.

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