US1005778A - Grain-separator. - Google Patents

Description

R. J. OWENS. GRAIN SBPARA'I'OR.

APPLICATION FILED JAN. 14, 1911.

Patented 0G1]. 10,1911.

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noennr .1. owners, or MINNEAPOLIS, munnsorn,

Guam-surname.

Specification of Letters la tent.

Patented Oct. 10,1911.

Application filed January 14, 1911 Serial No. 602,633.

To all whom it may concern: 1

Be it known that I, RoBnRnlfOwnNs, a citizen of the United States, residing at Minneapolis, in the county of I-Iennpin and State ofMinne'sota, have invented certain new and: useful Improvements in Grain- Separators; and I do hereby declare thefollowing to be a full, clear, and-exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

'My invention is directed,-particularly, to the improvement of that type'of separator which is adapted for the separating of succotash, to-wit, a commingled stock consisting of wheat, oats and various small foreign seeds. I i

Generally stated, the invention consists of the noveldevic'es and combinations of devices hereinafter described and defined in the claims.

The objects particularly ,sought for and accomplishedby my invention are large ca pacity in respect to the amount of separation accomplished, and high eflioiency in respect to the character of the separation. These advantages are accomplished chiefly by the provision of sieve riders of novel construction and arrangement. Each such novel sieve rider is made up of a multiplicity of slats, preferably wooden slats spaced apart, so that gaps areformed between their adjacent edges, and with the slats extended obliqu ly in respect to the direction of the longitudinal inclination of the cooperating sieve. In some instances, the slats of the rider are connected by stiff connecting strips, such as wood, while in other instances, they are connected by'flexible strips,

, interposed sieve being remove p,

. tween the sare E1g. ;3 isfafiv'ertical section such as leather straps. The advantages of this novel construction. and arrangement of the sieve riders will be fully stated after first having described, in detail, a grain separator embodying riders constructed and arranged in accordance with my invention.

In the accompanying drawings which illustrate the said'machine, like characters indicate l i'ke parts throughout the several views,

Referring to the drawings, Figure l'is a vertical section tale-m longitudinally and centrally through the maehineyFigfi is a plan view showing two ovcrlyi ngi riders, the

from be taken on the line a 00 of Fig. 2; Fig. 4 is i a detail in section takenon the line m m of Fig. 2; Fig. 5 is a plan view showing one of the riders, some parts being broken away and illustrating the construction in which the rider slats are connected by flexible strips; and Fig. 6 is a detail in section taken on the line to w of Fig. '5.

The framework of the machine is indi.

cated as an entirety by the numeral 1. This framework, at its top, supports a grain supply hopper 2 of the usual or any suitable I construction. Receiving from and working below the hopper 2 is a sieve-equipped shoe, the body or frame of which is indicated as an entirety by the numeral 3. This shoe 3 is mounted for endwise vibrator longitudinally of the machine and, as

shown, is supported at one end from the sides of the hopper 2, by links 4:, and at its movements other end is supported by the upper ends of vibratory levers As shown, the levers 5 are-intermediately pivoted to the sides of the end portion of an air discharge spout 6 that is connected to a fan case 7, which latter is suitably supported by the framework 1 below: the shoe 3. An ordinary fan head 8 Works within the fan case 7 and its shaft 9 is shown as provided at one end with a crank 10 that is connected, by a pitman 11,-to the lower end of one of the shoe supporting levers 5. In this way, endwise v1- bratory movements longitudinally of the machine are imparted to the sieve shoe 3.

The numerals 12 and 13 indicate, respectively, grain and air deflecting boards located in the delivery portion of the air dis charge spout 6. v

'A screen 14 is arranged to reciprocate below the fan and to receive the wheat which has been separated from the cats and which is directly delivered thereto from the deflecting board 12. This screen 14,

however, forms no part of my present invention and it may be of any suitable construction and may' 'be mounted and operated in any suitable .way, not necessary for the purposes of this case to consider. If employed, its function would be to separate small seeds and other fine foreign materials from the otherwise clean wheat.

In the machine illustrated, the power for reciprocating the sieve shoe 3 is transmitted thereto throughthe leversh and cranks 10, and the fan shattQ is assumed tohe driuen tic The perforations in all of the sai -to rest directly upon the upper by a belt (notfshown) which would run over a pulley 9 located on one endof-the fan shaft 9.

The features of my inventionaas incorporated in the machine illustrated, will now be. considered. g Y H The endwise vibratory shoe 3 prov ded with a multiplicity of longitudinally'flm clined sieves 15, preferably in the form of perforated zinc or other sheet metal plates,

suitably-secured to the said shoe.

The pertherethrough of all of the wheatand a great deal of the oats, but small enough to carry off, as 'tailings, all such material as broken straw-or chafi'. Otherwise stated,-

screen. screens, except the upper screen, are large enough this upper screen :15 is a chafiing to pass wheat therethrough but small enough to cause oats held 'flat against the faces of the screens to slide over the screens, to thelower or deliver end's thereofi Below. the lower screen 1 ,the shoe 3 carries an inclined imperforate deck 3. Arranged each ofthe said screens '15. is rider, constructed in accordance with my invention, and made up of a multiplicity of rider slats 16, preferably formed from thin wooden stripsand having their-upper or receivi'ng edges obliquely undercut. or beveled, so that the" wheat and oats will slide under the same. The upper portions of the rear I edges of these; slats are valso preferably beveled to thereby afford better clearance for the passage of the wheat and oats and other seeds through the spaces between the slats'and, hence, under the slats, so that especially the oatswill be held .flatwise on the faces of the screens. 'In the construc-. tion shown in Figs. 1, 2, 3' and', theslats I 16 are shown as connected by wooden strips v 17,- while in .the construction shown inFigs.

5 and-6, the said slats are connected by fleXible straps l8.

7 Preferably, the slats are formed with a multiplicity of perforations which permit .some of the grain to pass 'therethrough and, hence, under the slats, 'thusincreasing the separating efliciency of the machine. The slats are extended obliquely to the longitudinal direction of the machine or, in other words,obliquely to. the direction of inclination and-vibration of the "sieves '15.. This is highly important as will presently more fully appear Furthermore, the slatsofthe one. rider are oblique in one direction, while the slats of anoverlying or underlying rider are oblique in the opposite direction. Otherwise stated, the inr I clination or angle of the slatsof the several 65 sieve riders are alternated in respect to each surface of: a so-called the machine is reduced.

other. This is also importantas will hereinafter more fully appear. v

To secure the best results, the rlders above described should not reciprocate or .vibrate withthe seives 15, but should remainjrelae vti vely stationary. To accomplish this, the

riders 'on all of the seives 15, except the u per one, are anchored, at their upper en as shown, by means of arms 19 and straps 20,-, to: an anchor bracket 21 rigidly secured to a cross bar 1 of the machine frame 1. The rider on the upper sleeve :15 is shown as anchored to the bottom of the hopper 2,

by a bar or metal strap 22, and it is shown as terminated at its upper end short of the 'upper ends of the other riders, so that the succotash will fall from the hopper directly on the upper portion of the up er sieve 15.

Operation: -In machi nes 0 this kind,

. there is a tendency for thefgrain or material which is to be separated, in passing overthe :sieves, to collect in a central stream fflowing over-the sieves in greatest bulk at the-central portions-thereof. My improved riders prevent this action and cause the grain to be'spread out over the entire surface of the sieve. When-the grain falls.

upon one of the riders, it will quickly work itself underthe slats thereof and the cats will be heldfiat on the faces of the sieves 15, so that the tendency is to carry ofl oats at the lower ends of each sieve, while the wheat, which is rounded,,and fine seeds,

vwillpass successively through the perforations of the-sieve and will finally be delivered onto the imperforate deck 3? of the shoe 3, and from. thence will be delivered through I v the blast'fromithe fan and onto thescreen 14. In the repeated actions of thevriders on the grain or stock, the stock will, as I stated, be spread out over the entire surface of the sieves. w The oblique arrangement of the slats will cause a drift of the grain first. von one sieve, 'towardoneside of the shoe,

and then ona lower sieve toward the other side of the shoe. Under this alternate drifting and spreading action, the total distance' traveled'by the stock over theseveral sieves will be very much greater than the aggregate longitudinal dimensions of the several sieves 15. This, as is evident, increases the separatlng efficiency of the machme or,

other words, has'all the advantages'that could beobtained by the use of much longer Thus compactness is given tothe sieves. machine, by permitting the use of shorter sieves than otherwise would be efiicient and,

riders so that the sieves will move longitudinally in respect thereto is that, by this arrangement, the grain or stock Wlll be workedmuch more rapidly under the slats 130' of the said riders, thereby increasing the rate offthe travel .of the stock and correspondingly increasing the separating caacity of the machine. In some instances, owever, the riders may be arranged to move with the sieves. p All of the cats, except possibly pin oats, will be discharged from the sieves 15,

at the lower'end of the'shoe 3; When the wheat-drops from the deck 3 and deflecting board 12 through the blast of the fan, any chaff, dust or any light pin oats which may still bemixed therewith will mostly be partake of a slight part of the sieve movement, but the sieve movement, even in this case, will be much greater than the movement of the slats so that the stock will be positively worked under the slats.

What I claim is:

1. The combination with a sieve, of a ridertherefor, made up of a multiplicityof rider slats and coiiperating elements connecting said slats and partaking of such movements as are imparted to the slats, the

said rider, as an entirety, being gravity-held on said sieve and being removable as an entirety from saidsieve, substantially as described.

2. The combination'with an inclined'vibratory sieve, of a rider therefor made up of a multiplicity of slats extended obliquely in respect to the direction of the inclination of the sieve and-connected with gaps between their adjacent edges. r

-3. The combination with an inclined vibratory sieve, of a rider therefor made up of a multiplicit of slats extended obli uely in respect to t e direction of the inc ination of the sieve and connected with gaps between their adjacent edges, and means anchoring the said rider against vibrator movements against said sieve.

- 14. The combination with a vibratory sieve shoe having a multi licity of overlying inclined sieves, of ri ers for'the said sieves, each made up of a multiplicity of rider slats extended obliquel inres ect to the direction of-the inclinatlon of t e said sieves, the angle of the obliquity of the slats of the sieve riders being alternated so that the stock will be caused to drift in one direction on an overlying sieve and in an opposite direction on an underlying sieve.

5. The combination with a vibratory sieve shoe having a multiplicity of overlying inclined sieves, of riders for the said sieves, each made "up of a multiplicity of rider slats extended obliquely in res ect to the direction of the inclination of t c saidsieves, the angle of the obliquity of the slats of thesieve'riders being alternated so that the stock will be caused to drift in one direction on an overlying sieve and in an opposite direction on an underlying sieve, and means anchoring the said riders against vibratory movements with said sieves.

'6. A sieve rider made u of a multiplicity of rider slats and flexible strips con-' .necting the same with gaps between the adjacent edges of said slats- I 7. A sieve rider made up of ajmulti-' plicity of perforated rider slats'connected with gaps between their adjacent edges.

' 8. The combination with a sieve, of a rider therefor made up of a multiplicity of perforated rider slats connected with gaps between their adjacent edges.

9. The combination with a sieve, of a rider therefor made-up of a multiplicity of perforated rider slat-s and flexible strips connecting the said slats with gaps between their adjacent edges. i

10. The combination with an endwise vibratory inclined sieve, of a rider therefor anchored against movement with the said sieve and made up of a multiplicity of rider.

slats, and flexible strips connecting the same with gaps between the adjacent edges of said slat-s, the upper edges of the said slats being undercut, substantially as described. I In testimony whereof I affix my signature in presence of two witnesses.

noBERT J. OWENS.

Witnesses? -HARRY D. IXILGORE,

F. D. MERCHANT.

vcopies of this patent may he obtained for five cents each, by addressing the Commissioner of ratents,

' Washington, D. G.

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