US144211A - Improvement in grain-separators - Google Patents

Description

UNITED STATES PATENT OFFI SAMUEL LESSIG, SR., OF READING, PENNSYLVANIA.

IMPROVEMENT IN GRAIN-SEPARATORS.

Specification forming part of Letters Iateut No. 144,211, dated November 4, 1873 application filed February 1, 1873.

To all whom vit may concern p Be it known that I, SAMUEL Lnssic, Sr., of Reading, in the county of Berks and State of Pennsylvania, have invented certain new and useful Improvements in Grain-separators; and I do hereby declare that the following is a full, clear, and exact description thereof, that will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings and to the letters of reference marked thereon7 which form a part of this specification.

My invention has for its object tolfurnish an improved grain, straw, and chaff separating machine 5 and consists in the combination and arrangement of the parts hereafter fully shown and described, and pointed out in the claim.

In the accompanying drawings, which illustrate my invention and form a part of the specification thereof, Figure l is a longitudinal vertical section, and Fig. '2 a plan view with cover removed. A

A is the separator, composed of the serrated Y and perforated surface-a,1 a1 a3 and the carriers a2, secured to, and carried and operated by means of, the guides L. The serrations al al are arranged to project upward and toward the discharge end of the machine; they are crescentshaped, and in the vibrations of the separator aid in carrying the straw and chaff. a3 projects downward and toward the receiving end. a2 are two notched straw-carriers, attached to the upper side of the separator. In the vibrations of the separator they shake the straw, cause the grain to fall to the surface a1 a3, and carry and dischcrge said straw at 0. L are two guides, to which are secured, and by means of which are operated, the separatingsurface al al a3 and the carriers a2. They have their bearings on the cranks a, and on the journals a7 attached to the cross-piece r, and work in the bearings in the ends of the levers or arms b1. y is the driving-pulley, connected by the shaft z with the operating-pulley s. 'Ihe shaft z has formed on it the cranks a4, which are journaled to the guidesL. The pulley s is provided with the heavy cast flange or extension e, which serves as a ily or balance wheel to equalize and steady the movements of the various parts of the machine. d5 is a flexible apron or guard, one end of which is attached to the frame-work at d, and the other end to the separator A. C is a vibrating chute, carried and held in place by the levers b2 b3, and is operated by the levers b1 b2, connected by the links b4. and extends from beneath the discharge end of the separator A, to and so as to deliver the grain into the sieve-box D at its rear or inner end. The levers or arms b1 b2 b3 and link b4 are made in two sets, and arrangedcorrespondingly on opposite sides of the machine. bl b are journaled at their upper ends, and b2 at its center, to the `frame-work. b1 is journaled at a7 to the guides L, and b2 and b3 are journaled to the chute G at j and a. The levers b2 are constructed about three-fourths the length of levers b1, and have their upper ends provided with bearings t', and connected by the link bL with the levers b1 at bearings i', which bearin t" are so placed as to be in a horizontal line with the bearings t' on lever b2, that a direct action may be secured by levers b1 on levers b2', and so as to have the lower end of lever b1 about one and a half times or twice as long as the upper end. The levers b1 are inclined forward of a perpendicular line from their bearings aF, so as to give them a power to more readily exert the increased force necessary to operate the chute C in its inclined position. The construction and arrangement of the levers b1 b2 are such that, when bl is drawn forward, b2 forces the chute up the incline. They also give to said chute a short oscillating movement, which lessens the liability to become broken or worn. freely in the bearings 'i i', permit the movements of the levers b1 b2 in the curved lines, which they necessarily describe, and thereby obviate all jarring and opposing action which would result were these levers journaled directly together. The operation of the levers b1 and b2 is such that they not only impart an oscillating or vibrating movement to the chute C, but also give thereto a slightly-undulating movement, which greatly facilitates the delivery of the grain to the sieve-box. b5 is a rod, through which a vibratory movement is communicated to the sieve-box D. It is attached to an extension of one of the arms b3, below the bearing a, and connects with the sieveboX by means of any ordinary shoe and shak- Itis inclined toward- The links b, moving' l 2 Ellll ing-rod. The sieve-box D is appended to the frame by hinges or hooks, so as to admit of free and easy vibration. It is provided with the removable sieves d1 d2 and screen d3, and with the discharge-trough d4. The screen cl3 and the bottom d6 are inclined, to facilitate the delivery ofthe grain and screenings to the discharge-trough d* and the opening 02. G is the blast-fan case, formed in two sections, m m', which are arranged so as to present the two apertures or throats o 01. The section m has one end iirmly secured to the rigid bar n, the other to the adjustable bar g, which may be raised or lowered by means of set-screws in the side of the machine, so that the aperture 0 can be contracted or enlarged, as may be desired, to diminish or increase the quantity of air admitted to the sieve-box, or to direct the current more directly under the sieve d1, as is often found necessary in winnowing grain which is somewhat damp, or directing it more generally into the sieve-box. Eis the blastfan. Its axle is provided with the pulley c, by which it is revolved through the medium of a band connecting with the pulley s. H is a regulating and governing blast-valve, closing the throat o1. It is hinged at h2, and provided with the notched arm h1 and weight h. F is an adjustable guard or apron, regulated by bearings and set-nuts j' in the posts x. Its object is to turn the air up or down the sieves, so that the chaff can be blown well out into the straw as it falls from the separator, or to the ground before reaching the straw, that it may be cared for separately. K is the cover of the apparatus. It rests on the brackets k k', and is provided with the iiexible apron k.

In the operation of the machine, motion is received through the medium of a belt from the thrasher passing over the pulley y, which,

by means of shaft z', revolves thc cranks a, which again give an oscillating` or vibrating motion to the guides L, carriers a2, separatingsurface a1 al a3, and to the lever b1. The levers b1, by means of the links b4, impart motion to levers b2, which connect with and cause the chute C to vibrate. chute give a swinging motion to the levers b3, and these again, by the extension of one of which, oscillate the rod b5, and through this rod the sieve-box D. The blast-fan E is revolved by band passing over the pulley o on its shaft, and the pulley s on the shaft z conneeting with the pulley ly. The intermixed grain, straw, and chaff are received from the thrasher by the separator at R. The vibrating and oscillating motion of the separator disengages the grain and chaff from the straw. The straw is carried by carriers a and discharged at O. The grain and chaff pass through the separator to the chute C, thence to the sieve-box D, where the chaff is blown out and the grain carried to the discharge-trough d4, from which it is received by the attendant.

Having described my invention,what I claim, and desire to secure by Letters Patent, is-

The combination of the separator A with the vibrating chute G and the sieve-box D, by means of the two pairs of long jointed levers bl b3, the pair of short jointed levers b2, and connectinglinks b4 b5, substantially in the manner and for the purpose herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 15th day of January, 1873.

SAMUEL LESSIG, Sn.

Witnesses MATTHIAS MENGEL, DANIEL SPOHN.

The oscillations of thel

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