US1871703A - Classifying apparatus - Google Patents

Description

Aug@ 1932. T. KARLovlTcl-i ET AL CLSSIFYING APPARATUS Filed July 5, 1929 3 Sheets-Sheet l Aug. 16, i932- T. KARLQVITCH ET AE..

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T. KARLOVITCH ET AL CLASSIFYING APPARATUS Filed Juiy 5. 1929 5 Sheets-Sheet I5 moo eso una@ oq i a v a .a a o n ne o ao a u n 1 n ne au f. 1 .0 oe e o o a a o a en o e a e de U 00 a a n u n n coa Aa-M panca o Patented Aug. 16, 1932 UNITED STATES THOMAS KARLOVITCHAND JQIiNSESES, oEMoUNT CARM-EL, PENnsYLvANiA cLAssIrIivG ArPARA'rUs lipncationfmed :riiiy 5', 1929. sefm Nb. 376,133.

Our invention relates to apparatus of the type known as classiers, which is employed in the operation of classifying and separat'- i'ng from a' mixture ofsubstanees those of ldifferent specific' gravity. .n y

Speeially our invention relates to an apparatus commonly known as a Coal jig, which is' employed for the cleaning of .Coal andthe separatingof the coal from slate, stone,I and the' like,- whieh maybe interningled therewith. This is possible of aeeomplishmentby means of a eoal jig wherein water is employed, because thee'oa'l is offa lowei''spe- Vcie 'gravity than the slate, stone,.and the like whichmay be intermingled therewith.

The'geneal objeet of our invention to prvideanapparatus embodying novel features Vf construetion the presence of which enables a more eiiieient and Complete separa tion of Vthe slate, stone and 'the' like whieh maybeintermingled with the coal than 'here tofore has been j oraetieal.` j' i fIt also is an objeet of ourinvention to provide a elassifying' apparatus for the treatnient of a mixture of eoal andimpurities 's'ueh as slate, stone and the like) ,Comprising novelinelns whereby a bed of slate',`sto'n'e and the likel of unir'ormV depth i throughout its width is' maintained at all times during the operation of the apparatus, so that separa# tion of the eoal. fromthe slate and stone is efficiently and eompletelyeffeeted.

Aurther object of our invention' islto Y provide a 4construction of' apparatus for the cleaning of lCoal, provided with means of novel eonstrnotion whereby the slatev gate is prevented from becoming looked against opening and Closing movement, the result being that the eoieneyfof the apparatus is' enhanced to a substantial degree. j

To the foregoing and other ends toV which reference will ormay be inadehereinafterthe mannen ,mpfehend's' the einem forms of apparatus as illustrated in the drawings andas ovred bythe claims.

In order that the invention maybe readily understood and its practical` advantages fully appreeiated'reerence should be-made tothe Fig. 1 is a View in longitudinal sectional elevation of oney form of construction of classifier embodying the invention.,

Fig. 2 is a` View in top plan thereof; 1

Fig. 3 is an enlarged vertical longitudinal view in sectional elevation of the' jig pan and 55 certain `associated parts shown in Figs. l and2; Y

Fig. 4 is a top plan view `ofthe jigpan showninFigl; v i

Fig. 5 is a view in elevation of the dis- 69 ycharge-end of the jig pan; l l Fig. 6 is a'verticyal sectional view taken along the line (i4-I6 of Figs. 4 and15;

Fig. 7 is a ltopy planview showing a'modiliedyoonstruetion of jig'pan-embodying the G5 invention; 'f

Fig.v 8 is a longitudinal sectionalview taken onthe line 8-'8 ofFig. 7; `f 1 '5 Fig. 9 is a view in elevation of the -disi Charge end of the jigpan shown in Figs. 47 7b Figi 10 isa view `in top plan'showing an# other modiied construotion`of jigpan;v

k Fig; l1 is a longitudinal sectional viewof the discharge yend portion othe jig ypan taken "75 on the line 1l-11 of. Fig. 10; andl v Fig. 12 is a view in elevation ofthe dis- Charge end ofthe jig pan shown in'Figs. 10 and11.." j' 1 In the drawings we have shown fael'assify- 80 ing apparatus comprising a tank 1 which is adapted to contain'water. This tank is of usual construction and need not be described in detail. A jig pan2 having a perforated bottom 3 is suspended by means oisupport` 85 ing bars 4 from eceentriestraps 5 whiehin turn are supported upon eecentries 6 mounted upon av shaft 7 The supporting bars4 are v secured to theopposite 'sides ofthejig'pan2l and extend below the same; The lower ends 90' the jig pan,and that both are tapered, theV toin of-fthe pani4 lIt will be apparent,

therefore', that by'adjustment ofthe weight 48 upon the arm 471 the thickness of the bed 'of impurities Vupon `th gate may be controlled and regulated.

It will be noted that the gate 3() lis ofthe same shape as the-horizontal cross-sectional area ofthe urear ordischarge end portion of the jig pan 2, and that its opposite edges are Y end portion ofthegate 30.- By reason of the factthat the 4dischargegate Bois tapered'toward its rear end, so that itsrear end is of the saine width as lthe discharge opening through which the coal is discharged from maint'ainingof `a bed of impurities of uniform thickness throughout the width of the rear end portio'nofi the jigpanstructure is rendered practically"possible. It 'will be found thatiin' the operation of an apparatus embodying the inventionaibed of slate, stone andthe like may be maintained at the desired or predetermined vthickness upon the gate a-ndup'o'n the bottomfof the jigv pan at all times and that the coal will be discharged at-allgpointsf along the upper edge of the breast, plate and that'there` will be no deadf'points where the coal will come to resti* 1 It will. be noted that theopposite edges of the gate are located inside ofthe lower edge portions' of the oppositefsides of the rear end 'section ofthe jig pan. j Inorder that the edge'of the gate 30,which` is located in proximity to the inner side of the inclined end portion 26: ofthe jig pan',1`nay be main. tained fat all times during its pivotal moveinentsi'n proper position with respect tothe said inclined side we havebent or inclined the lower edge fof the rlatter inwardly, 'as indicated at50. Theinner surface of the inwa'rdly inclined portion 50 maybe curved so that the different vertically extending elements'fof which the surface may becon'iposed are concentric withv the aXi's of the member 3l. TvVhen so curved the edge of the' gate 30 in proximity thereto will maintain the vsaineposition or relation with respect to the saine at alll times during is pivotal movements; but in practice the inner Vsurface of the inwardly extending portion 540 may beplane, as illus# trated. VByflocating the opposite edges of the gate' 30 inside of the` opposite'. side walls of the rear end portion of the jig pan 2 there is no possibilityof the gate Abecoming locked against movementby the gathering of iinpurities'or other material between the edges 4of the said gate and other portions of the structure. Inother words, the structure embodying our invention is of a charactersuch that the gate 30 is alwaysfreeto operate 'under the influence of the weight rofthe impurities which rgather thereon-and of the weigh`t48 upon the arm 47. Although in the construction illustrated in Figs. 1l to 6 inclusive, we have inclined or tapered Ithe rear end portionk ofthe upper 75 wall Vof the jigV pan, Yit vw'illbe `unc'lerstood that such wall may be straight and that the rear end Vportionof the lower wall may be bent inwardly and that the lower edge of the gate 30` maybe inclinedinwardly, the 'construction being exactly the. reverse of thatwhich is shown. v

Instead of ,providing a tapered outlet for the coal' and; for the impurities (including slate, stone and the like) by inclining the rear portion of one of the side walls ofthe jig pan and the Vadjoining edge ofthe gate 3() the irear end portions of both sidewalls may be inclined, asindicated at in Figs. 7' t'o'9 inclusive, lof the drawings, in which event the opposite edgesV of the'l discharge gate linay be inclined or tapered, as indicatedat 62. ln the construction asfillustrated in'these Figs. 7 to 9 inclusive, the lower 'edges of both of the converging side Wall portions 60 are bent inwardly, vas indicated at 63, forv the same purpose as has been described `with respec'tto the inwardly bent portion 50 ofthe construction shown in Figs. l kto 6 inclusive.- VThe remaining portions of the structure'.disclosed inFigs. `7` to 9 inclusive, are substantially identical with the corresponding parts or portions 'of vthe construction sho'wn in Figs. l to "Ginclusive, andV In the construction as illustrated in Figs.

l0 to lg'ginclusive, the sidewalls are continl ned to Etheir rearvends in vstraight lines, as indicated'at 65, andthe discharge gate'66 is of rectangular shape, as shown, its opposite edges being located within and in adjoining v relation'to the inner sidesfof Vthe. rear end portions 65 of theV sidewalls of the jig pan.

VThe oppositefrear end portions 65 of the side 'walls ofthe jig pan being parallel with .each other,` as shown, and not converging towardA each other as in the forms of construction shown inthe previous. ligur'esI of the drawings, it is not necessary that the lower edges thereof be bent inwardly, as described with respect to the corresponding portions of the previous structures.

. Theoperation zofk the gate 66 is controlled in the same manneras in the construction illustrated in Figs. lto 6, inclusive.

lt will be noted that in the several forms of construction the lower edges of the rear endportions of .the lside walls; of the jig pan are extended downwardly aconsiderable distance below the position occupied by the discharge gates whenthe latter occupy positions against the-lower edge of the breast plate 2 5, .The presencelof these extensions insures that the opposite edge por'- tions of the discharge gates will vbe located within -and in adjoining relation to the reari` end portions of the side wal-ls of the ig pan at all times during operation. Y v

It will be apparent tht in Athe several forms of rconstruction the relation of the opposite edges of the discharge gates to other portions of the jig pan structure is such that the wedging in of material between the'gates and adjoining portions ot the structure to prevent closing movementsthereofis*` not possible practically. `Hence the continuity of the-operation is vnot likely to be interrupted. 4 j y y Y By the employment of our invention we are enabled to produce or vbuild a. classifying apparatus adaptedfor useiin the washing and cleaning of coal to effect the separation therefrom of impurities (suchas slate, coal and the like) which apparatus includes means whereby a bed of refuse upon the bottom of the jig pan and upon thejdischarge gate will be of uniform depth throughout the width of the pan,` and whereby also the coal will be discharged continuously throughout the width of the discharge opening at the rear or discharge end of the vjig pan'structure. For these reasons a classi- -ying apparatus .embodying your invention is highly efficient. i Y Y i Having thus described our invention what we claim and desire to secureV by Letters Patent is: i e

1. A classifying apparatus of the character described, comprising a jig pan having the rear end portion of a side wall thereof bent and extended in a direction transversely of the length of the said pan, the lower edge of the said inwardly extended portion being projected beyondthe plane of the bottom of the said pan, the said extended portion being-bent inwardly, a discharge gate located between the'oppositeside walls of the rear end portionof the said jig pan with its opposite side edges located in adjoining relation to thesaid portions, and means for pivotally supporting the said gate at its front end, per-I mitting the rear end thereof to yswing back and forth between the rear ends of the side A classifying apparatus of the'character described, comprising a jig pan having opposite side walls the rear end portions of which extend in convergent relation to each other, the lower edges of the convergently related portions extending below the lower edges of the remaining portions of the side walls and oneat least of the said extended l edges being bent inwardly, and a tapered discharge gate pivotallysupported with its opposite edges located within' and in adjoining relation to the rear convergentlyrelated side wall portions. j j ,Y -Y

A classifying apparatus of the character described, comprising a jig pan having opposite side walls the rear end portions of which are bent and extended inwardly so that they are convergently related to,v each other, the lower edge portions of the saidgrear end portions being bent and vextended f inwardly,ka discharge gate located between the said convergently related rearend portions of the side walls and having. its opposite edges located incontiguous relation to the said portions, said edges being convergently related, means located at the 'rear end ofthe'said gate for pivotally supporting the same, and means tending to hold the rear swinging end portion of the said gate in its uppermost posi-` tion. l

asl

4. A Yclassifying apparatus of the charaotervdescribed, comprising a jig panfhaving a relatively stationary perforated bottom and also having oppositely disposed side walls, the `rear end portionsrof which are bent and extended inwardlyand rearwardly and terminating in positions spaced a substantial' distance from eachother, the .lower edges of said inwardly -bent portions being bent and extended' inwardly and downwardly, a tapered discharge gate,-means located at the front end' of said discharge gate for supporting theV same with its front end in adjoining Y relation tothe rear end ofthe said perforated bottom, a breast plate located in adjoining relation to the rear openend of the said jig pan, and means tending to hold the rear end of the said gate in its uppermost position in portions.

Y 5. A classifying apparatus of thecharacter described, comprising al jig pan having a relatively stationary `bottom and opposite sidewalls and rear end. portions yof which extend in convergent ,relation to each other, the lower edges of the convergently related portions extending below the plane of the said relatively stationary bottom and one at least of the said extended edges being bent inwardly, and a discharge gate, the opposite edges of which are convergently related, said gate being piv'otally supported at its front end with its opposite edges located within and in adjoining relation to the` rear convergently related'side wall portions.

' 6. A classifying apparatus of the characterd'escribed, Ycomprising a jig pan having a relatively stationary bottom and opposite side Walls the rear end portions of which extend a substantial distance. beyond thel rea-r end of the said relatively stationary bottom, a discharge gate, pivotal means for supporting the front end of the said 'discharge gate, means for vertically adjusting the said pivotal means, and means for yieldingly sup porting the rear end of said discharge gate, the opposite edges of the said gate being loL cated Within and in adjoining relation to the rear end portions of the'opposite sides of' said jig pan.

In testimony that We claim the foregoing as our invention We have hereunto signed our names this 28 day of June, A. D..1929.

THOS. KARLOVITCH.

JOHN SEBES.

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