US37111A - Improvement in grain-separators - Google Patents

Description

2 Sheets-Sheet 2.

A.` ROWE.

Grain Separator.

Patented Dec. 9, 1862.

IwUe1/z07 N. PETERS. Pham-uximgmpher. wasmngmn. n4 C.

ANSON ROWE, OF ATALISSA, IOVA.

lMPPtOi/EM ENT iN GRAIN-SEP-RATOHS.

Specification forming part of Letters Patent No. 37,11! dated December 9, ltitifl.

To @ZZ whom t may concern:

Be it known that l, ANSON ROWE, of Atalissa, in the county of llfluscatine and State of Iowa, have invented a new and Improved GraiirSeparator, and l do hereby declare that the following is a full, clear, and exact description of the saine, reference being had to theaccompanying drawings, making' a part of this specification, in which- Figure 1 is a side sectional view of my invention, taken in the line m af, Fig. 2. liig 2 is a front view ofthe same; Fig. 3, a vertical section of the same, taken in the line y y, Fig. l; Fig. 1l, a detached viewof one of the blades or wings of the fan.

Similar letters ofreference indicate corresponding parts in the several figures.

The object of this invention is to obtain a grain-separator ofsimple construction, which will operate more efficiently than those previously constructed and not be liable to get out of repair.

To enable those skilled in the art to fully understand and construct my invention, l will proceed to describe it.

A represents the framing of the separator, which is inclosed by sides e a, as usual, and having a semi-cylindrical projection, b, at its front end, which serves as a fan-case, a curved plate, c, being placed within the framing to form a continuation of the ease at its upper part, as shown in Fig. l.

Bis a hopper, which is secured upon the upper part of the framing A, and has a slide, C, at its bottom to regulate the feed of the grain to the machine as occasion may require.

D represents an inclined feed-board, which is placed in the framing A underneath the hopper B, andis hung upon the rods d cl-one at each side-one of which, df, passes through one of the sides t of the framing, and is connected to the upper end of a lever, E, which has its fulcrum at e. This lever is operated by a tappet, j", on a horizontal shaft, F, having its bearings at one side of the framing, and operated or rotated by bevelgears g, from the fan-shaft G of theinachine. (Shown in Fig. 1.) This lever E when operated gives a lateral vibrating movement to the feed-board D, the rods d d heilig allowed to slide in their bearings.

H H represent two riddles, which may be constructed in the usual orin any proper way.

These riddles are hung in the framing similar to the feed-board D, having a rod, hv, attached at one side at about their centers. These rods pass through vertical slots in one sided ofthe framing, and have their bearin gs in plates I, which may be adjusted higher or lower by means of setscrews 'L'. (SeeFig.2.) Theop-y posite sides of the riddles have bars j at, tached to them at points coinciding with the rods zf, and these liars pass through the side of the framing, and are attached one to the upper end of lever J, and the other to the lower end, as shown in Figs. 2 and 3. The fulcrum of the lever J is at lr, and the lever J is operated from the shaft F by a tappet,l. This arrangement gives a reciprocating motion to thel two riddles H H in opposite direc-` tion, and by this movement the concussions and jarring attending the lateral vibrating movement ot' the shoe ordinarily used are avoided, as oneV riddle in operating connteracts the other, so far as Atremor orY jars are concerned, for the riddles work independently of each other, and the weight ofthe grain on them, in consequence of moving with the riddles in opposite directions, cannot exert that powerful tremor and shaking niotion which attends the operation of the ordinary shoe having the riddles placed in it, and all moving in concert or bodily together. The barj of the lower riddle H has a spring, m, connected to it, which keeps thelower end ofthe lever J in contact with the tappet Z- in other words, gives the returirmovement to the riddles in the direction reverse to that given by the tappet. @ver the upper riddle H there is placed a metallic plate, K, which serves as a cover for said screen, and prevents all light foreign matter from passing upon it. The space between the discharge end of the feed-board D and the inner end of the upper riddle H is sufficiently great to allow the fan L, hereinafter described,to eject said light foreign substances through the said space, and the plate K prevents them from falling on the upper riddle. The latter, therefore, will not bc overta-Xed nor compelled to perform any but its legitimate work. This is animportant feature of the invention, and adds greatly to the efciency of the machine. Directly below the lower riddle H there is placed a screen or sieve, lll, having a chute, M', below it. This sieve is inclinedl in a reverse direction to the riddles H, as shown in Fig. 1. The outer end of this seive is provided with pins n-onc at each side-and these pins are iitted in the upper ends of springs N N, at tached to t-he sides of the framing. The inner end ofthe screen M rests upon a lever, 0, havin g its fulcrum at o. This lever O passes through one side of the framing, and it is connected by a joint with the lower end ofa slide, P, which is acted upon at its upper end by a Tappet, q, on the shaft F. The inner end of the lever 0 has a spring, r, connected to it, which keeps the slide I in contact With the Tappet q. By this arrangement an up-anddown shake-motion is communicated to the sieve M. The fan L is placed on the shaft G, and is provided with bent blades or wings o". These blades or wings arc bent, so as to f'orm au obtnse'V, as shown clearly in Fig. 4. The concave surfaces of these fans form their face sides or the sides which force the air from the ian-case, the air entering at .each side of the case. On the fan-shaft G, at its center, there is placed a circular disk, H', which is in line with the centers ofthe blades or wings r, and is in contact with them. (See Fig. l.) This circular disk H serves as a partition for the l'an, and causes the air to be forced through the space between the outer edge of the feed board D and the inner end of the upper riddle H with an uniform strength from one end ot' the space to the other. With the ordinary straight-bladed fan the strength ot' the blastis always greatest at the ends of the fan, gradually diminishing toward the center. This result is obviated by my arrangement and construction of the blades or win gs, which draw the. air toward the center and cause it to be supplied suthciently, so that it will be expelled from the fan-case with a uniform strength throughout the entire width of the latter. This end is an important one with this invention, as it insures all light foreign substances being thrown by the blast on the plate K. The riddles H H may be adjusted at any time, so as to "be in a horizontal position transversely by regulating the position of the plates I, adjusting them higher or lower. The feed-board D may also he adjusted in the same way by having one of its rods d fitted in a plate arranged like the plates I. Between the two riddles an inclined chute, HX, is placed.

In order that the machine may be adjusted in ahorizontal position when stationary on inclined ground, I have a screw, R, inserted in the lower end of each foot s of theframing. These screws have each a square, t, on them to admit of a wrench being applied in order to turn the screws, so that each foot may be lengthened or shortened, as circumstances may require.

I would remark that the riddles H, instead of being operated by the levers and tappets,

as shown, may be operated by pitmen and cranks, arranged in any proper way.

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

1. The plate K, placed on or over the upper riddle H, and in relation with the feed-board D and fan L, as and for the purpose specified.

2. The combination ofthe sieve M, riddles H H, plate K, feed-board D, and fan L, ar

ranged t'orjoiut operation, as and for the purpose herein set forth.

ANSON ROWE. Witnesses:

ROBERT T. THoMrsoN, LEONARD LAMB.

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