US1201685A - Method of and apparatus for handling coal. - Google Patents

Description

DE WHT W. BUCHANAN. METHOD OF AND APPARATUS FOR HANDLING COAL.

APPLICATON FILED FEB. 12, H115- V Patented Oct. 17, 1916.

7 $HEETSSHEET 1.

. flyeyzzri DE WITT W. BUCHANAN. METHOD OF AND APPARATUS FOR HANDLING GOAL..-

Patented Oct. 17, 1916.

I SHEETSSHEET 2 [fill/III!!! I 1 APPLICATION FILED FEB .12, 1915.

IIIIIIIIIIIIIII I V DE wm w. BUCHANAN. METHOD OF AND APPARATUS FOR HANDLING COAL.

APPLICA'TION FILED FEB. 12, 1915. Patented 0013. 17, 1916.

7 SHEETS-SHEET 3.

DE WlTT W. BUCHANAN METHOD OF AND APPARATUS FOR HANULING- COAL.

Patented Oct. 17 1916.

'1 hEET-SHEET 4.

APPLICATION FILED FEB. 12, I9l5- mmms,

' DE WITT W. BUCHANAN. METHOD OF AaJ D APPABATUS FOR HANDLING COAL.

APPLICATION FILED FEB. I2. 1915. 1,201,65. Y mma 00, 17,1916

ZSHEETSSHEET s.

DE WITT W. BUCHANAN. METHOD OF AND APPARATUS FOR HANDLING COAL.

Rm 1 0106., wh 1W is t cs 0 M M t? n w a .D1 4 M 2 nm E F D E L H N m T A C U DI P A DE WITT W. BUCHANAN.

METHOD OF AND APPARATUS FOR HAUDLING GOAL.

APPLICATION FILED rgs. 12. ms.

Pateilted 0ct.17,1916.

I SHEETS;SHEET z.

"siding at Chicago, in the county of Cookfind State of-llhnois, have n enteda new and useful Improvement 111 -Methods of and "trap stares rarest ethics.

DE WITT'W. BUCHA AN, OF CHICAGO, ILLINOIS.

METHOD OF AND APPA'itATUS FOB HANDLING CQAIIJ.

I Application fired February 12, 1915. Serial No. 7,766 f To all 1071 am '1' may 0071mm.

Be' it known that I, e GHAXAN, a citizen of the United btates, .re-

Apparatus'for Handling Coal, of which the following is aspecification;

' My invention relates to. improvements in the art ofv hand ring coal. More particularly, the anrentionisconcerned with a method and means tor gradrng "and distributing freshly-mined coal, for

loading 'the distributed icoai into cars, for automatically re-gradmg the coal during such loading operation, and for redistributing anycoal rejected by the loading apparatus.

With the above and other objects in iew, I have provided the method of and apparel tus for handling coal, which is specifically described in the following specification and illustrated by the accompanying drawings,

inwhich- I v I i Figure l is a side elevation ot the regrading and loading machine of my n1vention, a n"d' showing the relation of this ma .ehine to the storage bin and to the car which is to beloaded; Fig. iii; a section on line2 of Fig. 1'; Fig. 3 is a section on the line 3 ofFig. l; t is asection on the line 4 of Fig. 2; Fig. 5 is-an enlarged section on the dine 5 of'F-ig. 1; Fig. 6 an'enlarged sec- :tion through the horizontal rte-distributing conyeyer and through the loa'd1ng chute -.theretor;.F1g. 7 1s a diagrammatic View ofthe entireicoal-handhng plant; Fig. 8 s an @enlarged elevation of a port-ion of the 'distribut'ing conveyer and the means-for dis charging coal rejected by the loading nra chine onto the same, and Fig.- 9 is an end elevation ofthe apparatus'shown in Fig. 8,

7 In "this figure of the drawing, the numeral 10 desxg miles the slu ft-hcadof a coal mine. This head will contain suitable-means for elevat ing coal fron the mine, crushing the freshly mined coal,' and discharging thejcoal thus crushed upon the upper-surface of the'i'ning' in the direction of the arrow, will elevate the mixture of Various. sizes and grades of coal and slate and will discharge the mixture at the top of the storage house 12, within which is located suitable apparatus for separating theslate from the coal and for grad- Specificati n f B ms'Pateht. Patented Get, 17 1916.

V "'clined conreyer l1. flhis conreyer, travel De lVrr'r \V. BU-' in or sorting the coal according to the size oi thc'lumps. (,lonnnonlv, about six grades or sizes are recognized as standard market guides, and the storage house 12 is thereforeprorided with at least six, and usually more, separate bins, here designated-13, each bin being designed to contain only its own special siZe orgrade of coal. The bins 113 will each be provided. in common practice, with ahopper-bottom. having a stumble-outlctgate 14- positioned at. some'distance above" the ground level to permit a railroad car 15, which runs on tracks beneath the row of bins, to be filled, by gravity directly from the bins.

Iii-handling and distributing coal in the manner and witha'napparatus of the general form of that descr1bed,I find that the distributing and grading processes within the storage house 12 cannot be relied upon to effectively size the coal, so that. each-bin will contain only the grade of coal which it is nominally said to contain. lithoutdiscussing the reasons for this in any grea detail, it may be stated that 1n general it is custonmry to separate the slate-fi mnthe coal after the latterhas jbeen' graded, and that in'this slate-separating process'and by able fraction of the coal becomes broken up,

trai 'eling"through the chutes, the screens, etca, and dropping into the b ns, a consider so that a bin which, for 'instance,; should nominally contain the grade of coal known. 'as-fm'nace coal, that is, coal having lumps approximately sixinches in greatest diain-.

eter and three inches in smallest diameter will be found to contain a considerable pro portion of very much smaller pieces, which processes.

{are formed by the bi-ealtin'g u 'i of the larger lumps n the distr but ng and slate-removal It is the specific object ofrniy invention therefore to proyidea means adapted to be interposed between the bins 13 and the coal ,car 15 for again grading the coal and. 1e

jecting all lumps which should not properly be found'inthe coal of the grade desired.

This object' l accom|'ilish by a combined the latter is loading amt grading apparatus. mounted to travel beneath a row of bins aml receive coal from any one of the latter, separate out the improperly sized lumps amt discharge the re-graded coal into the car.

It is a 'l'urtlier object ol the invention to provide this loading machine with a meanst'or discharging the rejected coal onto suitable conveyci's bv which it may be transported to the top ot' the storage house amt again sorted or graded.

In Fig. T. the loading and re-gi'adin ma-. A l

chine is designated by the mimeral it) and is mounted to travel upon a track tT parallel to aml beneath the row ol' hoppers 1E2.

t llt rejected coal is discharged by tlie loading machine I onto a conveyer belt .1 by carried to a second conveyer belt 11!. aml linally delivered through the chutei l onto the convcyer ll-on which it,-

mixes with the 'l'reshl v-mined coal and is carried to the top olfthe storage house 12 'to be again graded amt distributed to the bins l i. 'lhe apparatus shown schematically in Fig. T;therctore operates in a continuous manner. amt without waste. to grade amt distribute the coal. to re-grade the coal prior to loading the same, and to re grade and re-distribute the coal rejected during the loading operation. By this apparatus amt by this method of handling the coat. I-

' am theret'ore able to insure the highest degrec ot unitorn'iity ot' theloaded coal, and this. without substantial additions to the oi'- dinary and. well-ltnown 'l'oi'ms o't coal-hani'ling apparatus and without. increasing the cost ot' li findling the coal to any great ex tent.

'lhe loadingight re-grading machinc-which is interposedbetween the hoppers 13 and the coal car 15, is shown in detail in t .igs. 1 t0 .3 of the drawings. From these ti'gures. it will be seen that the track 17. on which the loading machine travels. is carried by beams 21 supported upon columus'2-2, which form a pa rt: o't' the-structure ot the storage house p12. The loading apparatus per 8(5 ()llll)l,'-lSOS a substantial rectangular 't'raine. designated;-

as a whole by 23. aml consistingo't' transverse iii'embers it and .25 at the front and rear. respectively. and longitudinal members .2 which lie .upon and are secured to'the transverse members it. 25. vl rontl and rear respectively. are supported on -loadingmachine may be propelled along the.

track. IT. Mounted between the side longitudinal members -26 ot'. the traine are tongi-- 'lrame members it. 23, respectively.- these longitudinal members extendingforwardly ot the frame proper for the purpose of supporting the loading chute. This chute,

designated 36 inthe drawing. is carried by a shaft 55 journalcd in bearings 37 n'iou'nted upon the upper surtaces ot' the I-beamsfia aml has its t'ront 'end supported by cables 3H which are wound upon a shaft- 39 carried inbracltets 40 at the outer or front ends of the I-beams ll amt operable through a hand-wheel It. a third bearing bracket 42 supporting the end 'ot' the shat't 3!) adjacent the hand-wheel. Suitable ratchet mechanism. not shown. will be provided to hold the shat't 39 against rotation amt permit of maintaining the chute 2-36 in any adjusted angular position.

(arried by thetrame 23 ot' my traveling loading machine. amt adapted to receive. coal t'rom the ho )0! l5) amt dischar 'e the same l l s into'tlie loading chute 36, IS a shaking screen flexible vertical supports 4-5. The supports 'are preferably constructed of ash or other tough and r silient wood. and arefixcdly se- 'cured at their lower ends bya sub-traine depending t'rom the main trameBZ'I andlying between the traclts .17. Asbest shown in Fig. 4 the sub-frameconsists of longitudinal members 'to united by gusset-plates 47 to outwardly inclining struts t8 andinwardly 'inclining struts 4!), which are secured tot'he lower faces of the longitudinal tramemembers 26. By means of these inclined struts the sub-frame torms a rigid structure in which the lower ends of the flexible supports t5 may be mounted.- The shaking screen 43 i.- adapted to be recii n'oeated by 'aip'air of flexible connecting rods 50 having their ends bolted or otherwise fixed to the screen t'ram anddriven ti'oin eccentrics 5: carried by a transverse shaft 53 which is journaled. asat 54. upon the longitudinat 'Lbcams 33 t.

'l he shaft 53 is driven by the gear-train oaWhmn an electric motor 56 mounted upon the rear end of one of the longitudinal l'rame members 26.

A second pair o'l eccentrics 5i.

and at an angle of 180* to the latter. carry a second paii-"ot connecting rods as, th tree ends 5! ol which are. journalcd. as at (it). upon projecting pintl'es oil a counterbalance roll il (see Fig. -l which is adapted to reciprocate across the surtace ot' a table tr: resting upon the transverse t'rame. member it at its tront end and upon a channel section (33 parallel *totlie traine member Zl'at its rear end. the counterbalance roll is preferably exactly equal to that of the screen t?) together with This screen is carried on transverse -angle sections 4t wlnch are i'i'io-un'ted upon carried by theshi'i tt" 523 and mounted outside of the eccentrics 5;

The weight of of coal, as it moves over the screen 43," any the weight of the coal carried by the screen in the normal operat on of the maohin'e As shown in the drawing, the screen A3 inclines foriiardly at an angle 'of about 10 to which,'in connection with the shakmg orreciprocating movement imparted to the screen by the connecting rods 50, is s iflicient to cause the coal to feed slowlydownward and into the chute-36, F or the purpose of'separating from the passing stream lumps smaller than those proper for the particular grade with which the car isbeing filled, the screen is provided with a perforated bottom 64:, which is divided into 3 three sections 65, 66 and 67; Theperforations or meshes of the section'65. will be of the'largest size, the perforationsof 66 will be next largest, and the perforations of 67 will be the smallest. between the screen-section 65 and the section 66,- the-side walls 68of the screen frame will .be provided with channels 69 in which a tail-gate may be mounted tovseparate the two sections of the screen. Above, the screen section 67'and lying across the top of the side wall 68 0f the screen',-,there is a fourth I screenmember 70 having perforations still smaller than those of the screen 67. The

screen member 70 is provided with an upstandi'ngr'im 71, which embraces the back and both sides of the screen. In its normal position, the screen'member 70 rests upon ribs 72 carried by..the side walls-68 of the main screen43, and-by swinging the screen.

member about its pivot it may describe the path shown in dotted lines. inFig l until it comes toirest above the screen sec tion 68', in which position its rear wall 73 forms a't ail-g'ate to separate the screen sections 66 and 67.

To receive any coal whichpassesthroiigh the meshes of the screens, I provide chutes screen 43 so as to be recipr0cated.with' the latter. This I find desirable in order that any coal dropping into the chute75 which,

as shown, has a very slight inclination horizontally, may be 'efi'ectiyely fed downward into the conveyer housing. The screw ,con"- veyer 77 is mounted upon a shaft 79,". the

outer end of whichcarries a sprocket Wheel 80 driven by a chain 81 from a s milarsprocket' 82 mounted on the shaft 53" (see- Fig. 3) The conveyor housing passes tra'ns versely of the frame of the loading ma=- chine and came end is extended'beyoiid the track- 17 to discharge into astationary in..-

clined chute '83 which leads to the horizontal the track. 17. I i

At the dividing line I y i s'ee Fi 6). This latter conveyer may bemounted beneath" a platform cr'runway 84 extending along-parallel. to

,Tli'e opei'ation'of my improved "loading machine,- when used for the'purpose of grad-- ing and redistributing coal inthe manner contemplated-by "my invention, is as follows The coal is lifted from the mine, or obtained 1, 7B

from some otliei-soiii'ce of supply, beingat that time in the form of a crushed mass of mixed coal and slate of varying; sized lumps,

and in'this form is discharged upon th'e'bot-' toni of the inc-,lined'conveyer'11. By the latter', it is carried upward to the top of the storage-house 12 and in its passage down-; ward through this house, it is sorted or f "1 graded into lumps of various sizes,tlie slate is removed, and the various grades of coal then distributed to their proper bins 13 This processmay be carried on any. oneof'several known methods, which .a're not described in detail since 'theyfo'rm no pmof my improvement. this part of the coal-handlingapparatus, it

In connection with-K need only be" stated that the grading or sorting of the-coal as carried out within the storageliouse 12, though conductediin ac cordance with the most efficient methods, is. a

usually not a perfect operatiomas has been ing may have been perfect, 'how'eyer, subse-- .9 1 pointed out. Even though the'initi-al sort- I,

quent handling of the'coa'l, removal ofi-the slate therefrom, and distribution into the bins "will, in generahf produce some breaking up of the larger lumps, so that .a bin nomi- I nal'ly vsaid to contain furnacecoal for instance, w llfbe found to have. interm xed therewith a certain proportion of smallerv sized lumps, which shouldbe properly 1 graded as stove, egg, pea, or some other Z smaller'sized val. Itis' the. immediate ject of my invention to'pr'ovide means by which this imperfect grading maybe corrccted at the time the ,coal is loaded, to the endthat' only perfectly sized and graded coal will reach the car 15.

the machine will be energized topropel the latter'to' a position beneath the proper .bin 13 and the coal car 1.5 willthen be pulled under the dischargechute 36 of'the' 1oadi np; machine. It shou'ldhe noted at this point thatchutes 83, discharging upon. the hori- 'Th-isresult'is accoinplishedbymy loading niachinein-the I following manner;Thejdrivingmotor 31 of zontalconveynlS, will be located atiproper" positions to rece ve the discharge of the horizontal conveyer from the loading in a-';

chine when the latter is in positiori b'eneath any one of the'hoppers 13. The hopper-- gate 14 will now be-opened (a suitable handwheel 14", which lies in a position tobe reached from the runway 84' being connected to operate this ate), and simultaneously the electric motor '56 will be started and the use of flexib- .thrmigli it gearv connections will drive the shaft 51- 'lhe rotatioi'i'ot' the eccentrics 52,

mounted on the shaft 53, will impart to the 'llexible. connecting rods 50 a reciprocating "whiDDing of the screen 4 will be aecentuated by the flexible supports 45 on which the screen is mounted. l find that this species of ,whipping reciprocation, obtained by or resilient screen supports and'tlexible connecting rods rigidly attached to the screen. is peculiarly desirable and elll ient in eliecting the screening of the coal. The stream of coal discharging through the open gate 1+ andonto the scr en bottom will'move slowly downward across the bottom, and, due to the vibratory mo tion of the screen, any lulnps which are below the standardsizc .will pass through the meshes of the screen onto the chutes Tl or 75 and from the latterinto the convever housing 76. By this eonveyer such rejected coal will be fed outwardly, delivered tothe stationary chute H3, and from the latter onto the horizontal.eonvever 18. The main body of the. coal passes slowly downward across the t'ace/ot the screen into the chute 3 and -t'rom the latter is discharged into the coal-car 15.

It may be noted at this point that the screen. 43 nnlst'be' caused to vibrate or \\'hip" at a considerable speed. for such vibrations to be most ctlici nt in screening and separating the coal, and atsuch high speed oli vibration.there is a pronounced and ob|ect1onable shaking movement ol the loading machine. as a whole. .This. I ellectively o.\"ercome by means ot the counterbalance roll til and connecting rods 58.

'.l-hese. eonmcting rods are carried by eccem tries 57 spaoed 180 from the eccentrics so that the movement of the rods .38 is at all times equal and opposite to the movement of the rods 50, and since the counterbalance roll is oftlle jsamc weight as bc'screcn, and

the coal containedtherein. all forces of re.- ciprocation litcome perl'ectly balanced, and the obiectional vibration ol the apparatus as a whol,e, is avoided. This feature is ol peculiar importance, since it is not-desirable to make the loading machineany stronger or hearierthannecessary, or to anchor it to the tracks when operating. and were? it not for the provision ol' the connterbalaucing roll, it would either be necessary to coin struct'. the machine very heavily and. substantially to withstand the vibration ol the screen. or to anchor it securely to the tracks while in operation.

Such ol' the coal discharged fronrthe bin 13 as was below standard size, Wlll be re- 'jccted by the machine in the manner descree'n 70.

scribed and delivered to the horizontal conveyer 18, and from the latter will be transported to the eonveyer l9, thence to the discharge spout 20 and onto the elevating conveyer 11 where it will miX with the incoming stream of coal on its way to the top of the storage house, and it will therefore be seen that such rejected coal is not Wasted but on the other hand is conveniently and automatically returned to the top of the storage house to be again distributed to its proper bins.

.\s stated in the introduction to this specilication. thebins 13 will contain VtlllOllS' sizes ol' coal and it is therefore ('l nr that a single screen' ri't baring the same mesh or size ol pe'rlorations throughout its surface would not be desirable for the grading of the dill'erent sizes o'l coal. 'ith this in mindl have provided the tour screens (35,, ill. UT and 70. arranged in the manner shown. \\'hen the bin containing the largcst size coal is discharging upon the screen of the loading machine, the latter will be positioned to receive the discharge upon the screen (35 containing the largest size perforations. It is obrious that any coal which will not pass through thepcrl'orations ol the screen (33 will llow continuously orer the second and third screens (at (37. without being atl'ectcd thereby and in the same" manner as it these screens 'l'ormed'an imperl'orate chute. It a bin containing a sizeot-coal smaller in onc dimension than the meshes ol' the screen ()5 is to bccmptied. a tailgate will be placed in the guide-way of separating the screens 37 and tilt and the loading machine will then be so positioned with relation to the hopper that the coal will discharge l'ronl the latter directly onto the screen ti and thence downwardly over the screen into the coal car. as usual. It a still smaller size vo'l coal is to be graded. the superposed screen it) will be turned baclt. as indicated by the dotted arc in l{ig.;l-. to lie rbove the screen (35. the end wall TI ot' the screen it) t'hcn''l'orming a tail-gate lor the 'scre en t'iT. 'lhe loading machine will then be so positioned witlr rclatibn to the hopper 'as to receive the discharge ol' coal directly upon the screen ?T. It the very smallest size ol' coal' is tobc g "adcd. the sllpclpnsctl scr en Ttl will e positioned as shown inl'ull lines in Fig. l. and the loading machine so placed with rcl'- ercnce to the hopper as to receive the discharge ol' coal thcrcl'rom directly upon the It is quite obvious that any coal small enough to pass through the meshes ot the line screen it); will also pass through the larger apertures oli the screen HT beneath the screen it and thence to thcchnte liy the use o'l' screens 'ol' l'our sizes. I lind it possible to ell'ectircly grade at least six dill'ercnt sizes o'l'l'coal. -ll' the hoppcrsli} contained more or less grades or sizes of coal, it will be obvious that the screen 43 may be further subdivided or some of its divisions may be leftout, as the case may be.

' broken fragments. my invention this. result is accomplished. without substantially. altering the ,operationof the coal-handlingv 1 tions to the same.

chine interposed between the hoppers and The ultimate result designed tobe accomplished bymy invention is the handling of coal in such a manner as to insure the delivery to the coal-car of a perfectly sized or graded product, free of slack ,or dust and plant, as a Whole, and without costly addi- The coal-loading mathe coal cars, when constructed in; accordance with my invention, will operate pertectly in combination vith the system, as a whole, to accomplish the ultimate result aimed at in my invention in a simple and efficient manner. I regard it as an especially advantageous feature of .my invention that I am able to makeuse of the existing: coalelevating, Separating, and distributing ap paratus in the simplest manner, to provide for returning the coal rejected by my loading machine to the storage house to be distribnted therein by the existing machinery into'its proper bins.

While I have shown and described in considei'able detailthe'exact manner-in which I prefer'to carry out the handling of coal according to my invention and have illustratcd and described a specific;apparatus adaptedto perform the results aimed at by my invention in the simplest manner, it is to be nnderstoml-that I. do not regard my "invention as limited to these details of op- :eration or construction, except in so .ta as they are included within the terms ot the following claims, in which it is my intention to claim all noreltyinherent in the inven-' tion in as broad a manner as is pernnssible View of the prior art. 1 What I claim is:

tributin the various grades to receptacles,

discharging the graded coal from the receptacles and simultaneouslyre gradnig to sop arate out lumps of smaller size, returning such rejected coal to the ungraded supply to the storage house,- a plurality of bins therein adapted to contain dil'l'erent sizes otand their grading out said smaller lumps and combining the same with corresponding small gr aded coal.

2. "In coal-handling.apparatus 'a storage house, means for supplying ungradcd coal coal, means for guiding the coal according to the sizes thereof and distrilmting it to the said bins, means adapted to receive the coal directlyas it is discharged from the bins and to re grade it to separate out lumps ot I; The method of handling coal" which consists oi. the following steps; continuously supplying nngraded coal, grading'snch sup ply zurcordingto the sizes of the lumps, dissmaller size, and meansfor directly discharging said regrade'd coal to-the source at supply ofnng'aded'coal whence it.isv regraded there-with. l v

3. In a coal-handling apparatus, a storage house, means for supplying u graded coal thereto, a plurality of bins therein adaptedto contain coal oi? different sizes, means for grading the coal according to the sizeof the lumps and distributing tlie" sa1neto.the said bins, means to receive the coal directly from the saidbins, and to regrade itto separate out lumps of'smaller size, meansfor directlydischarging theregraded coal and means for retnrningthe rejected coal to the first-named supply means where it is rcgraded. i v 1 I lfln apparatus for 'harnlliug coal and, in coinbimitimi, a storage house, a conveyor for supplying: ungraded coal to the 'top of said house, a plurality of bins located in the. lower. portion-0t said house, means for grading the coal according ,to the size of the lumps thereof and for distributing the graded coal to said bins, a movable grading machineadapted to be placed in operative 5. ln coal-handling apparatus and, in"

mmbination, a plurality of binsmoiinted in aysin n'le row and having elevated discharge outletsya track lying parallel toand below the discharge outlet of therow of bins, a loading and grading machine mounted to travel on said track flor positionin in operative relationl'io any one of the said outlets. means thereon for discharging, graded coal. nieans thereon for-.'

separately discharging rejected coal a'nd 'incansfor carrying! said rejected coal "back to the binsrontaining coalot' corresponding size. i

. 6. In coal-hand]in; apparatus. and: in

.colnbination. a plurality ot'bins having graded coal mounted ina single rowand having elevated outlet apertures, a track-- lying: parallel to and below the outlet apertures of the row of binsa loadingmachine adapted to travel upon the track and to bepositioned beneath anfi' selected. outlet aperture. incans-carried byvthe said machine For {grading coal discharged from the bins, means for discharginggraded coal. n'ican's torscparalcly dischargingrejected coal, and means oja' rali\'cl v related to 4 said lastnalnedmeans for transporting rejected coal back to'the said bins containing corresponding size.

7. In c0alhandling apparatus and, in combination, a plurality of bins mounted in a single row and having. elevated outlet apertures, a track lying para-llelto and be- 10\V- the outlet apertures ot'the rovv oli bins, a loading machine mounted to travel upon the said track for positioning beneath any coal of selected outlet aperture to receive the discharge therefrom by gravity, a shaking screen carried by the said machine and adaptedto receive the gravity discharge of coal, means lontlischarging coal which passes over the screen, and means for separately discharging coalu'hich passes through the screen and returning the same to the bins containing c'oal'ot' corresponding'size.

8. In a coal-handling apparatus and, in combination, a plurality of bins i'nountral in a single row and having elevated outlet apertures, means for grading and distributing 'run of the mine coal thereto, a tracklyin'g parallel to and lxmeath'the apertures of the row of bins, a loading machine adapted to travel upon the said track for positioning beneath any selected outlet aperture, afscreen carried by .the said machine andpositiomal to receive. the gravity discharge of coal from said outlet aperture, means for moving t-hescreen, means for receiving the discharging coal which passes from the said bins. a second .track inter-' posed between said lirst tracleand the outlet apertures ot' the bins, a loading machine. adapted to travel upon saidsecond track for positioiiing beneath any selected outlet aperture a screen carried bythc said inachine and adapted to receive the gravity discharge of coal from said outlet aperture, means l'or nioi'ing sai'd screen, means l'or dis-- charging coal passing over the said screen into a car traveling upon the said lirstnamed track, and separate means l'or discharging coal passing through the said screen, said last-named discharge means being directed laterally so that the issuing coal may tall clear of said first-named tracl; and means to carry said l( |((.tttl coal to where the run of the mine coal is reccived.

It). In coabhandling apparatus and, in combination, a plurality ot Inns mounted in a single row and having elevated outlet apertures, means for grading and distributing run of the mine coal thereto, a track lying parallel to and below the said row of bins and adapted for the transportation of receive a gravity discharge of coal from the said outlet aperture, means for discharging coal passing over the said screen intoa car traveling upon the first-named track,a conveyer system, a l)()tl()ll ot \vlnch lies parallel to said first-named track and \vhich' ultimately discharges into said bins, and a laterally directed discharge means carried,

by said loading machine and receiving coal which passes through the said screen and directing-the same onto the said conveyer system. p s

1]. A loadi g frame, supporting \vhcels carried by said frame, an .llltilllltfti screen mounted for re ciprocation on, the frame, means for reciproca ng said screen, means for discharging n'iaterh'd passing over said screen longitudinally of the machine, and means for discharging material passing through the said screen laterally otthe machine, in combina tionvvith traveling conveyors adjacent both of the discharge outlets; Y

1;. in a loadingmachine and, in combination, a l'rame, supporting wheels carried by the l'rame, an inclined screen mounted for riaeiprm-ation on the l'rame,means tor recipro ating the screen, means for discharging material passing. over the screen longitudinally ol the machine, and a conveyer mount ed transversely ol the machine for discharging material passing through the screen laterally ol' the machine, in combinationwith traveling conveyors adjacent both of the discharge outlets.

1 3. In a loading machine and, in combination, a l'rame,supporting \vheels carried by the l'rame. a. screen carried by the l rame and inclining toward one. end ol? the same,

frai'nc and incliningtoward one endvthereof, means For reciprocating the screen to cause material. to pass downwardly over the machine comprising a same and to discharge fromthe lower end thereof, and a conveyer mounted. trans-- versely oi: the machine and below said screen to receive material passing through the same and discharge it laterallycf the machine, in

combination with traveling conveyors ad:

jacent both of the discharge outlets.

15. In a loading machine and, iii. comb1- nation, a frame,s upporting Wheels carried by the itrame, a reciprocating screen mounted upon the frame,a'reciprocating counter balance "Weight connected with the said screen to more oppositely thereto, means for discharging material passing over screemand means for separately discharg i119," material passing through the screen.-

16. In a loading machine and, in combination, a frame, supporting Wheels carried by the frame, an inclined reciprocating screen. mounted upon the said frame, an eccentric shaft, a connecting rod operable from the said shaft @and secured to the said screen, a second connecting: rod operable flOlll said shaft and angularly displaced 180 with relation to said first connecting rod, a reci 'irocating' counterbalamze Weight driven froinsaid second connecting rod,

means for discharpiing material. passing over said screen, and means for separately dis-- charging material passing through the screen.

17. In a nation, a frame, supporting r heels carried by said frame, resilient vertical supportsfixed to the said frame at their lower, ds,

a screen' carried by the upper ends of said supports, an eccentric shal'h'a connecting rod operable from the said shaft and secured to the-said screen for reciprocating the latter, a second connecting rod operable from the said shaft and angular-l displaced 180 away from said first connecting rod, a rolling counterbalance weight connected with I the free end of said secoml (ainnecting rod, means for discharging material passing over the screenfand means for separately discharging 'i'naterial passing through the screen. b I 18. In a loading machine and, in combination, a frame, supporting wheels carried by the frame. vertical resilient supi'iorts fixed to the said frame at their lower ends,"

a screen carried by the upper ends of said supports and inclined lo'ngzfitiuhnally of the frame, an eccentric shaft mounted trans-- versely of theframc, a, connecting rod operable from said shaft and adapted to reciprocate the saidinclination, a second coimectinn' rod operable from. the said shaft and angulerly disthe loading machine and, in combiscreen in the direction of its placed 180 with relatioii to said first connecting rod, a counterbalance roll carried v by the free end of said second connecting rod, and means for discharging materialpassing through the screen laterally of the said frame. H a

.19. In afloading machine and, in'cor'nbination, a frame, supporting" wheels carried by the frame, Vertical resilient supports fixed to the said frame at their lower-ends,

an inclined screen carried by the'uppe-r ends of said supports longitudinally of the frame, an eccentric shaft, a resilient ccnnectinn rod operable from the said shaft and rigidly fixed at its free endto the said screen, means for longitudinally dischargin}; material passing over the screen, and means for laterally discharging: material passing through the screen, in combination with traveling conveyors adjacent both. of the discharge outlets.

. QOK'In a loading machine and, in combination, a frame, supporting whees carried by the frame, vertical resilient supports fixed to the said frame at their lower ends, an inclined screen carried by the upper ends of the said sup' -iorts and having screen secv tious the mesh of Which-is progressivelyless toward the lower end of thescreen, means for reciprocating said screento cause material to pass downwardly"over the screen and discharge from the lower-end thereof,

.and n eans for "eparately discharging Ina-- nectin r rodsoperable from the said shaft v 3 .1 r i I Y r and having their outer ends rigidly ILXBtl to the said screen,- a second pair of connectng; rods operable from thesaid shalt and;

angular-1y displaced with relation to i said first pair of connecting rods, a counterr balance roll mounted to reciprocate parallel to the said-screen, connections between said 7 counterbalance roll and said second pair otconnectimr-rods, and a conveyor mounted transversely of the said frame and below the said screen to" receive material passing through the screen and discharge it laterally of the said frame. i

DE NITT W. BUCHANAN in presence (if- A. H. FLANIGAN, 4 GUY ST. CLAIR.

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