US976425A - Apparatus for washing grading, and classifying coal or other material. - Google Patents

Description

v I. D. BAKER. APPARATUS FOR WASHING, GRADING, AND GLASSIPYING GOAL OR OTHER MATERIAL.

Patented Nov;22, 1910.

APPLICATION FILED DEC. 6, 190B.

P. D. BAKER. APPARATUS FOR WASHING, GRADING, AND GLASSIFYiNG GOAL OR OTHER MATERIAL.

APPLIQATION FILED DEC. 5,.1908.

Patented Nov. 22, 1910.

4 8HEETSSHEET 2.

:5: 11 fin m nlii 'll witnesses J1 40 fmz z F. D. BAKER.

' APPARATUS FOR WASHING, GRADING, AND GLASSIFYING GOAL OR OTHER MATERIAL.

APPLICATION FILED D1105, 1908.

Patented Nov. 22, 1910 Q SHEETS-SHEET 3.

i 5. 5 5 7 %/AVJ/ 7/ 27 F. D. BAKER. .r :PARATUS FOR WASHING GRADING, AND GLASS IFYING COAL OR OTHER MATERIAL.

4 SHEETS-SHEET 4.

Patented Nov. 22, 1910.

APPLIOATION FILED DEC. 6, 1908.

.30 the aforesaid relative-motion may-he con- While its upward movement isicomparatively better qualitynot 'thecoal to thetop'arid as unrrni) STATES PATENT OFFICE.

FRANK i). KER; or nEivvEn, ooL'oRADo. H APPARATUS. roe WASHING? GRADING, AND CLASSIFYING coat on OTHEkMATEhfhLQ 7 425; I r i Specification ofLett ers: Pat'ent. p t ted lv 22, 19 191 f a licatio iiied-inecemb'er 5, 1e08, Serial No. 466,185. t J is separated from the highest quality "which": N it passes over the top of the jig as aforesaidfi i ,Further provision is made for separating? the rock or heavy worthless material, more" or less of which is taken from the mine with the coal. n important feature of my improvement is that thefunction of the a paratus is'coh-Zjf" a full, clear, and exactdescription of the intlnuously carried 0115 the di erent grades (sfl0 vention, such as will enable others skilled coal or other materialsbeing automatically 'in the art to which it appertains to. make and use the same, referencebeing had to the accompanying drawings, and to the figures of reference marked thereonfwhichform a ,15 part of this specification.

My inventioit relates to improvements ,in means for washing, grading or classifying coal or other materials, according tdtheir specific gravity, 4 f .3 1 im 20 In this application the, use of the apparatus for coal-washing and grading purposes will be described, though it must be understood thatthe invention may be employed for washing and grading other materials. 25 My invention relates to improvements in apparatusfor the aforesaid purpose in ,whicl i the sorting action of abody of water, in m0- ti'on relative to the material toybe sorted, is employed. It. must be understood that To alljwhom it may concern; i I

Be it known that I, FRANK D. BAKER, a. citizen of the United States, residing in the city, and county ofDenver' and State of C010- 5 rado, have invented ccrtaln new and useful Improvements in Apparatus ,forashing, Grading, and Classifying Coal or other Ma-. .terial; and I do declare-the following to be Worthless material is also automaticallydi's charged and kept'separate from the coal Having briefly outlined my invention well as the function it is intended 'tol v formfI will proceed todescribe' thesam reference being made to the accompanying' drawing in which is illustrated an embodi ment thereof. I 5 7 5 In this drawing, Figure 1 is a vertical section taken throu "h the apparatus. Th s section may be said to be taken fonfl'the line 1-1- Fig.3. Fig. 2 is'a 'frziginentary vertical section taken on the line 2 21 0. Fig. 3 i in /order to illustrate the? dis. charge'pf the niddlings grade of" 'al from the Fig. 3 is a section talren' on' the line Fig. 2 viewed in the-direction of arrow 3 in said -figure. Figfisa section 8 taken on the line 4% Fig. 2- viewedfiiiythe. direction of arrow 4. Fig. 5 is a section similar to F ig. 2 but taken on'the lihe fi o Fig, in order to illustrate"the discharge, of the rock from thejig. v I a i The same referencecharacters indicate 'th ef tinuo'us, or pulsating in character, and that the pulsation may: be unior nulti-directiona'l in the sense that the pulsation afl'orded theordinary plunger-type jig may 3 .1w consideredto be iii-directional. a In this description the improvementsare considered as being installed in'conjuncti-on' with coal washing machinery in which a jig-tank and a mounted'to'reciprocate therein are employed. The jig is reciprocated through the inst'rumentality of mechanism for. imparting a differential movement= thereto of such characterthat the downward stroke of the jigis relatively ;rapid "same parts in all the views. Let the numeral '5 designate a tanlrTin which a 6 is mounted to reciprocate Ver tically"through the instrumentality ois ui t q i able" operating mechanism mounted to. im} part a differential. reciprocating inoveiner s i y rapidwvhile the upward strokefis sloW in'comp'arison, as heretofore indicated;

' As shown in the draw'in oweristrans.

' slow'. During the downwardmovement of I r the jig, whosehott-omopeirtoi'perniiti'the niitted"froman operat ngshaft'iutowhich entrance of water, the bnoya'ncyhottliegwa--'= power com unica'te ter has a tendency-;to raise the-.l-ighter and t the operation .goes ion; Pthe top "stratuni iof i coal .is .causedto W153101m theltopvof the ig.' -1' In In gimprovadCQlfitrrictiona revision is a f'fl ge slo f rsw fu qi lll fidiatwl nected with the short arm eacl lever .made or. further classif removing th is a pitman 18. The lower extremities of' these pitmen are pivotally connected with the jig as shown at 19. When this mechanism is in operation the differential reciprocating movement heretofore described will be imparted to the jig. However, as noth ing is claimed upon the operating mechanism in this application since it is substantially the same as set forth in Patent No. 816,672, to Robert L. Martin, dated April 3rd 1906, it will not be further described in detail.

The body of the jig is provided with a bottom 20 having relatively large openings 21 controlled by valves 22 which are adapted to open during the downward movement of the jig for the purpose of allowing the water in the jig-tank 23 to enter the lower compartment 24 of the jig. A perforated bottom 25 separates the compartment 24 from the upper compartment 26 of the jig.

The coal to be separated may be constantly delivered to the compartment 26 of the jig. This compartment is subdivided by a partition 27 whose central portion extends farthest downwardly leaving a space 28 below, into which the rock 29' passes. The partition 27 on opposite sides of this central portion is com osed of short portions 30 leaving spaces 31 elow their lower edges under which the middlings or second grade of coal passes. The compartment between the partition 27 and'the front wall 32 of the jig,

- 5 forms a sort of trapcand is subdivided into three distinct compartmentsb partitions 33. The rock passes to the central compartment 34 (see Fig. 5) while the middlings quality of coal passes to the compartments 35 on opposite sides of the central compartment. The partitions 33 are connected by a number of transversely arranged rods 36 upon which are mounted spacing sleeves 37 interposed between the partitions.

The central compartment 34 is provided with a gate 38 which is com osed of two over-lapping arts 39 and 40 the latter being fixed) w ich are adjustably connected by means of bolts 41 passing through slots 42- formed in one of the members, whereby the gate is extensible. To the upper edge of this gate is attached a rod 43 having an upper threaded extremity 44 upon which ismounted a nut 45 which is an integral part of a hand wheel 46 by which the position of the movable gate 39 may be regulated. in each compartment 35 is located a similar ate 47 composed of members 48 and 49 (the atter being fixed) connected by bolts 50 assing throughslots 51 formed in one o the members. The upper edges of these gates are relatively high, since the middlings quality of coal in order to escape from these trap compartments must pass over the upper ed es of the gates.

t the bottom of the central trap compartment 34 is formed an outlet 52 coiltrolled by a forwardly swinging gate 53 through which the rock 29 passes into the 1, jig-flank 23 below the jig. The bottom of" this tank is inclined, as shown at 55 and its 70 lower portion is provided with a screw conveyer 56 adapted to remove the rock from the tank. Located adjacent the jig-tank is a settling-tank 57 adapted to receive the best quality of coal which may be designated as 58, and which passes over the top of the jig. In the bottom of this compartment is a screw conveyer 59.

Within thetank 57 is formed a com artment 60 which is in communication wit 1 the trap compartments 35 of the jig by means of openings 61 from which pipes 62 project upwardly and are open to receive hollow members. 63 connected with the bottom of the jig and telescoping in the pipes 62.

The middlings quality of coal passes through the members" 63 and 62 and enters the compartment 60 in the bottom of which is located a screw conveyer 64.

When the apparatus is in use a vertically reciprocating movement is imparted to the jig within the jig-tank and under the infiuence of this movement the material fed to the jig rapidly stratifies, the heavier or rock or slat portion of the material 29 assuming the lowermost position, the middlings quality 65 the position next above, and the highest grade 58 assuming the uppermost position. This separation is brought about largely through the buoyancy of the 100 water during the relatively rapid downward movement of the jig. During this operation the highest quality of coal is carried over the top of the ji and discharged into the tank 57, while t e middlings quality 5 first enters the trap compartments 35, passing under the portions 30 of the partltion 27vand finally passes over the tops of the gates 47 and thence downwardly, escaping through the openings 71 controlled by the 110 outwardly swinging gates 72 into passages 73, thence to the hollow members 63, thence to the pipes 62, thence throu h the opening 61 to vthe compartment 60 w once it is removed by the screw conveyor 64. Finally 115 the rock passes from the jig compartment 26, under the central portion of the partition 27 through the space 28 and into the central trap compartment 34, and thence over the relatively short gate 38 and thence 120 downwardly through an opening 52 controlled by a gate 53 into a tank 23 whence it is removed by the screw conveyer 56.

In explanation of the illustration of the action of the material in Figs. 2 and 5. it 125 may be stated that as the jig moves rapidly downward, in accordance with the difi'erential principle heretofore explained, the water will have a tendency to hold the uppermost layer of material in any trap compartment in sue ension' whereb thesaid ina teria ltis given an opportunity to pass 'overJthe top coal, as shown in F ig.- 2. Duringthe up ward motion of the jig after the downward motion outlined above, the xweight'ofgood coal and of middlings coal above the rock is" sufiicient to cause a flow of rock through the opening 28, below the partition 27, and thence into cpmpartment 34 and. to cause the rock to rise in reason the middlings grade of coal in compartment 35 rises approximately to the top of gates 47. Thus atthe end of the upward motion of the jig the materialsin compartments 34 and 35 are in condition to pass over the tops of gates 38 and 47 respectively on the Succeeding downward motion of the jig as already outlined. It is the combina tion ofthese two principles which causes a practically continuous discharge of the material from the jig whereby the run-of-mines product is separated into three grades, as heretofore explained, the separated material being discharged from the jig into separate compartments simultaneously with the feeding of the material into the main compartment of the jig.

Each gate 49 is provided with an upwardly projecting stem 66 having its upper extremity threaded as shown at 67 and engaged by a nut 68 integral with a hand wheel 69 for regulating the position of the gate.

The various subdivisions 34, 35 and 35 are .vented by the use of open-ended tubes or pipes 70 connected with the respective compartments and having their upper extremities located above the level of the water in the apparatus. In this manner provision is made for producing an upward current or circulation within the trap compartment of the jig, whereby the buoyancy of the water is caused to act upon the material in the said compartment for the purpose setforth.

Each subdivision of the trap compartment is provided with an outlet 71 controlled by an outwardly swinging gate or valve 72 which allows the middlings grade of coal to enter a downwardly extending passage 73 which communicates with the discharge member 63 connected with the jig and telescoping within the member 62 as heretofore explained.

In the event that the passage 73 should hecome'stopped, access' maybe gained there to for the purpose of removing the difficulty, through a passage 74 formed in the front wall 32 of the jig and normally closed by a plug" 75.

Having thus described my invention what I claim is:

1. In an apparatus for washing, grading compartment 34 approximately to the top of gate 38. For a similar of two members, one of ed to be adjusted in relation to the-other,

.which the nation of a jig provided with suitable means for'causing a"j1gging action in the material to. be treated, a partition having its lower edge varying in height from the bottom of the jig, said partition dividing the jig into a main compartmentand a trap compartment,tl1e trap compartment having anum- .ber of partitionsforming the said compartment into a number of subdivisions, the said subdivisions haying gates located therein and over which the varying grades of ore are to pass relative to the varying height of the said gates, each of said gates consisting said members adapt.- and to'va-ry in height relative to the variation in height. of the first named partition, from the bottom of the jig, whereby the heavier stratum of material is caused to cnter one subdivision of the trap compartment, while the lighter grade of material occupying an upper stratum, is allowed to enter another division and conduits communicating with the said subdivisions for conveying the separated material therefrom, substantially as described.

2. An apparatus for washing and grading or'classifying coal or other materials according to their specific gravities, consisting-of a jig having a transverse partition separating the jig into a main compartment and a trap compartment, the said partition extending to a predetermined distance from the bottom of the jig and provided with a central depending portion extending nearer the bottom of the jig than the ends the trap compartmeiit formed by the said partition having a number of partitions .yihgcoal or eth r materials, ac-

of the partition,

abutting atone of their ends againstthc'first named partition, the said partitions forming the trap compartment into a number of subdivisions, the said subdivisions having gates located in varying grades of ore are to pass through said subdivisions, each of the said gates consisting of two members, one of said memhls adapted to be adjusted in relation to the other, and means for imparting a suit able action to the to cause the material of varying grades to pass over the respective gates, substantially asdescribed.

3. In apparatus for washing,grading or classifying coal or other materials according to their specific gravities, the combination of a'" for producmg a jigging action in the material to be treated, said jig being provided with a screen upon which the material rests, and a partition separating the jig into a main compartment and a trap compartment, the said partition varying in height from the bottom of the jig to its lower edge, the trap compartment formed by the said the respective subdivisions over 11g provided with suitable means partition having a plurality of partitions separating the same into a'number of subdi- ,visions, vertically adjustable sites located named partition, thereby forming a vertical passagebetw'een the first partition and the 15 gates through which the material is to ass to be discharged-over the gates, and con uits communicating with the said subdivisions for conveying the material therefrom.

In testimony whereof I afi'ix my signature 20 in resence of two witnesses.

FRANK 1). BAKER.

Witnesses:

W. C. KUNEY, H. H. STEM.

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