US1529875A - Mechanism and system for conveying loose materials - Google Patents

Description

March 17, 1925.

Filed NOV. 4, 1921 l (V NI y" 1 l" ;l/

l N@ 7 Rp ll ll k Q l LUL J l m l @m l' D Q l A u n l l N qu Q w M@ w ll c ll Q l' l c.

l k k y Il 't l l' A ll l l v :xm 'l i l I Y ATToR EY March 17, 1925. Y

K. DAvls ECHANISM AND SYSTEM FOR CONVEYING LOOSE MATERIALS 4 S Sheets-Sheet 2 Filed NOV. 4 1921 ATTORNEY March 17, 1925. 1,529,875

K. DAVIS MECHANISM AND SYSTEM FOR CONVEYING LOOSE MATERIALS Filed Nov. 4, 1921'V 4 sheets-sheet s ATTORNEY March 17, 1925. v- 1,529,875

K. DAVIS MECHANISM AND SYSTEM FOR CONVEYING LoosE MATERIALS Filed Nov, 4, 1921 4 Sheets-Sheet 4 fl t) Fie l;

Fig. lewis a f fragmentary topziplan taken j Y 5; passing through the other :flanges `which Y abut Vface Elagainst. face, all .las Vshowin lin Patented Mar. 17, 1925. v

l 1,529,815,- AUNI'fren i-sfra refs #PATENT es 'MECHANISM \A`ND SYSTEMFOR- CONVEYIIEILI'GBY {LOSE 'MATCEfRIAL'S.

Application filed' November l, 11921.v Serial kNo.5,152,778.

'Be -it known that I. KENNETH Devis, a citizen ofthe United States. residing at St. flenedict, in the County of Cambria and .State of Pennsylvania,have ,niadeF certain -neufand usefuls improvements in `Mechanism and Sli/istems for Conveying Loose lsaterials, `of which the following isa-specification.

The --invention irelates sito an iiniproved form of reciprocating conveying :mechanism Thel Iinvention,consists .-i-n the novel; parts,

constructions, arrangements, combinations and iinfl-n'ovements herein shown and'described. l

The f l accompanying drawings, referred to trate one embodimentv of the: inventionfaiid -together with the description,serve to explain the 4principles of the invention. i

' Gf. the drawings `l Ais -a -side elevation, withA certain :parts shown more oi" less diagrammaticailly, 4of the externalPoi-dischargeend of -a-conveyoi" Amechanisnr embodying the invention, and VAof 1 a ,part off the` common-driving orflactuatiing system foi-aip-luratity'lof they-conveyors;

Fig; afside elevation jon tliefiinnerfior receiving end of thefconveyor shown zin Eig. rl, the interveningportions ofi the conveyor @between *Figs 1 and 2 ybeing of varying' length :asV desired; Y

Fig. 3 `-is -a ltransverse Ivertical 1 section Italien :substantially f on the yline fief over -one `of theriliusherblade: mechanisms; llig. y5 'is a ltransverse if'ertical seotion taken i Substantially 'on'f'the fline 5 lfof 2; i i liligsfwisla transverse 'verticalisection subl-sta'nl'ially o1i1the'ilinef6-6f of vFig. f2;

F 7 is fas idetachedsidevelevation `with Vparts` omittedA showing the commony driving means for a plurality oftlie'fconveyors;

:ance `about tliei-eXternal'edges. l Iveyor blades lOare preferably. mountedby Fig. S-is -a'vertic'al transverse section on line `8f8 ofFig. l;

F`g.- 9 is a diagrammatic'topplan'of a plurality of conveyor mechanisms operating in a. series of mine roomsand driven' by common driving means in the entry; and c Fig. 110 -is a longitudinal section ofthe conveyor trough broken away. Referring now to theV4 embodiment ofthe invention, illustrated byv Way 'of 'example yin the,accompanying drawings, the conveyor is shown applied` to amine room, and espe cially ina thin venu-and also-as applied to a :group ofifooms operated' together by .a

single driving means and sourcfeofpowerA ejterring primarily .-to the generalconstruction of theimproved form of the con- "veyor, the conveyor or` conveyor trough'is .stationary and the blades`witliin tl'ietrough reciprocate to convey? thejm'aterial. 'In accoi-dance Withl one featurel of' the'lr invention,

the conveyor trough, the pusher" blades l'and the actuating mecliarmsnnare constructed =in `sections, or on a sectional system, of the herein and vconstitutmgfa[part hereof, illussame or corresponding dimensions, whereby the conveyor canbe extended by unit lengths as the face of' the y'Working @advances 'vTlie pusher blade and the actuating mechf i'ism v are constructed sothat f the ieciiproeato'iy travel of a blade `is, somewhatgreater' than ypusher blade mounting With the'front of the y the distance' :betweenthe pusher'bladesto y insure each-.blade getting completely'b'eliin'd its) pile ofwmaterial on'l eachreciprocation.

The conveyor trough,i as embodied, -conr ,prises a bottoni l), and inclined fsidesv-Qu and 3 extending upwardlyj therefrom,` andpreferably -outwardly inclined. The trough i.members are i heldtogetherxin i a suitable --niannei, as -by i-joi-ning .and reenferoing means, suclif-as,l al bent :angleirony 4, .4: fitted about and riveted to the outside fof the units -an'dat theends thereof. These; reenforcing members, placed vatqeacli end-,of each section f have one flange* lfastened. to their respective units, vandqmay `be joinedy together'. by. bolts i clinedposition,and are shaped to 'fill' thexintei'ior of the trough 'Witltonly Working clearf-The con# meansv yofangle' pieces l1- and 12,4 riveted r'to I pusher blades lOhave two points of support a rigid joint is desired.

Means are provided for preventing the load on the vpusher blades bending-or swinging them too far backwardly, and from exerting too much pressure on the bottom of the conveyor.v As embodied, wings 17 and 18, respectively, are fixed to the arms 11 and 12, and are bent upwardly and outwardly to rest upon the bars 15 and 16. Thus, the

at either side g` lon the one side, the points 13 andv 17, and on the other side, the points 14 and 18, to resist undue pivoting action and also undue friction between the blades and the conveyor.

Means are provided'also for unifying and stiifening the blade carrying and actuating mechanisinand providing also for reciprocably supporting the same on the top edge of theconveyor trough 3). As embodied,

short pieces lof channelbeam 19 and 20, re-

spectively, alrefastened to the external sides f ofthe bars15 and 16 by oneof their flanges,

the bottom or web of the respective channels resting upon the top edges of the sides 2 l i and 3 of the conveyor trough. l A connecting cross yoke or bracket 21 is formed in three right-angled reaches, one reach 22being fastened to the outside flange of the angle 19, Vand `the parallel reach 24 being fastened to the outsideiiange of the angle 20, with the intermediate 'uniting reach 23 extending across and above as shown in Fig. 3. The members 22' and24 also serve'as guides to prevent sidelash of the pusher blademechanism under stress of the load.

In accordance with onel feature of the invention, there is provided at the inner end of Athe conveyor a construction especially adapted to receive the coal or other loose material'at the level of the mine fioor or the bottom of the conveyor in varying small or large quantities as desired.v Aloading machine having a shovel or carrier at the front which is normally parallel with and just.

Y, above the floor, and which discharges the load from the shovel by a pusher blade is adapted to cooperate 'with the one-sided secvrtion of the conveyor, and can discharge comparatively large loads into the conveyor even iniavery thin coal. vein. Such aconveyor is shown in my copending application Ser. No.

filed April 15, 1922. Such a loader can discharge 'its load. into the conveyor witlioutthe necessity of lifting vthe shovel of the loading machine to discharge the material from the loader into the conveyor. This entire arrangement is especially adapted for handling coal-in large quantities in thin veins.

In the embodied form of the receiving end of the conveying mechanism, thekconveyor trough is adaptedto receive the loose mate-` rial at'the side, and the pusher blades and their actuating mechanism are adapted to this manner of loading the conveyor. The inner end of the conveyor (Figs. 2, 5 and 6) has one side, for instance, side .3, thereof omitted (Figs. 2 and 6) .Y The side 2in this case is removable, or shiftable from one side to the other, so that the loose material may be loaded into the conveyor from either side as desired, the side 2 servingv as a stop on the opposite side to prevent thel discharged ina-l terial from being pushed entirely across the conveyor.

In said embodied form, the rails or bars 15 and 16 are bent upwardly as shown at 30 in Fig. 2, and then extend again horizontally at a somewhat higher level to provide greater underneath clearance. The rear pusher blade 31 is provided with supporting arms 32 and 33, like the arms 11 and'12 but of greater length.' These arms are likewise pivoted in the side rails 15 and 16 in this high- `er section or portion thereof.

Suitable supporting meansfor the reciprocating conveying structure is provided,

and as embodied, there is at either side, respectively, supporting and guiding rods 34 and 35, extending horizontally and longitul OO dinally above the conveyor, and supported `f by suitableV means, such as bar iron standards 36 and 37, respectively, formed at ltheir bottoms intofooting and reenforcing loops 38 vand 39, which are fastened'to thel l bottom of the Vconveyor'structure and eX- tend upwardly therefrom, and support the respective rods 34 and 35 from beneath. Reenforcing sidev struts 40 and 41 are fastened to the loops 38 and 39, respectively, and extend upwardly and outwardly, and

'are fastened to the respective rods 34 and 35.

The arms `32 and 33 are pivotedon'a cross rod'42, which rod is carried in thebarsv 15 and 16. Journaled on the rod 42, at either side thereof, on the outside of rails 15 and 16, are curved rollers 43 and 44, which run, respectively, on' the supporting and guiding rods 34 and 35. l Yokes 45 and 46 are mounted at either side upon the rod 42,. and

Aextend downwardly on either side of the respective supporting and guiding. rods 34 and 35. The upper part of the supports 36 are preferably bent or angled outwardly, as

shown at 47 to form bearings for screw jacks 48, which also bear against the mine roof to hold the conveyor: construction firmly in positiorn Thus there-isz'lprovided an fopen sidente the conveyor ifori receiving L1-horizontally Idischarged i load, with an yopposite side for stopping the Idi-scharged 'load on` the conbottom. The vreciprocating blade construction is sufficiently whighhtofztfford clearance beneath f for? the discharge ori delivery of the material into the conveyo-i',an`d

yate in Very thin coal seams, suchas twofoot six inch and ithree foot veins. Thefloa'd from the loading machine can be delivered into the conveyorat 'any time virrespective of the positionef the pu'sherblades The construction also obviously lprovides lfor easy liandlingooi1 fthe ymaterialwithhand shoveling, orother means,as-it obviates the vnecessity'ior lifting the materiahand'for the 'height -necessary in such lift-ing.

In the preferred .embodiedFformofl conveyor mechanism, the nbla'de reciprocating structure -is rf'ec'i-procatedv fbymeans of cables and driving ineanstliei'efloi. Further as embodied, a common drivef is' provided for a lplurality of cables, although'each'icon- -veyor can beuprovided with Lits own-individual drive, ifldesircd. 'As embodied, la sprocket chain 56 runs over sprocketuvheels 57 and 5S, and a similar'sprocket chain'59 runs over similar sprocketwvheels y(S9-and 61 in line with the others. The-space between the two sets of sprocket-Wheels lis' mechanically clear, and a crossihead62i is connected to and extendsacross between the sprocket To afford athis clearance, @the sprocket Wheelsl are 'journaled'linsuit-able `bearings on' the external -sides `thereoffsuch as bearingsl and 64 and'65 andfG.

In the embodied form :of dl'i'veiforir-tlie sprocket cha-ins, sprocket wheels'. 57va=ndf L60 yareixed on a'pair of shafts 69, on :which vshafts are `fixed gear*Wheels'lfOqand 7l, -respectively. lWIeshing 11W-'ith 'the 'gear yWheels 70 and'71are-p1n1ons 72 and 73, which are liXed on shaft 74. On shaft 74.is fixed a i reducing gearwvheelv 7 6,.driven` by .the motor 75. The gear reduction 4may be asfg-reamas desired.

Fast to the cross-head 62 va-reboth ends of av cable 80, 'which cablefruns over -su 'porti-ng yand*'guiding sheavesfl1and'282, so that the cable has t-Wo opposi-telyflmoving reaches 83 and S4. Asthevpovv'erf-meoha` nism is driven the cross-l1ea"d62 travels to andl fro With the sprocket cha-ins' andf59.

In Fig. '9' this driving mechanism `s'-located 'in and extends along the' entry,- and the conveyors are located -in the respective rooms,l thecable extending past theumouths of the rooms. 'The conveyors inthe'frooms areactuatedwby branohfcalbles; attached `to the main' .drivringi cable: [just descibed.l "As .'einbodiedli(Figsov l,l 2 and ,i a branch cable `88 Lislconnected4 to' .the lowerireaclrffvofl rthe fmaincable, land'. passes over sheaves 89,A ('90, and;x 91, all suitably fpositionedw and vsupported,.land.is1iixedoto a crossrod 921`1Xed iin. a yoke V93, *Whichtotherwise may be: the 'same for similar to thefyoke '21, already d'escnibed. frllhevyokei93fmayl .-.be'iprovidedl with reentorc-l iingl rpiecesl 94 between .the yoke .and the Arails and 16,1asrsshownrinrlflig. l. Another cable '96- is fastened `to the: 'upper 4:reach 8410i? the-main lcaible (travelingifin the V:opposite ,direction from reach `83) :and rpasses.around-sheaves A97 l.and I98,i `properly mounted andupositione'd (Figs. land-2), Vand 4`extends: along-:zand overi the conveyor lmechanismv to the innen end thereof. At the inner.' end thereof thiskcableapasses over la .supporting r' and :direction reversing sheave 99, journaled in a support. 100, Aprovided `.withv screw adj ustmentfV 191 ttor; .tak-ing up the f slackloi" regulatingv the; tension 1inV the `cable ,'96. .IIhesupport 100.v isfrmounltedvon 'a cross-'piece 1021carrie'd-y uponl the inner'fend 'of the lsupporting land guiding rails '341 and 35. i Gable' 96 r:is 'fastened rito a "cross-rod mounted in rails fandl.

In Figs. 7 and 9 thecablesiare' shown 1n sofas 'to-divide the'load fan'd `distributeuit substantially requarlly, vor'ias'lne-arly equally E1s-possible, on the alternate 'reciprocations of the main cable'reaiches 83 and-84. Thus theload of' thefiirstfand .third conveyors, an'dso ciu-Willi fall on the main cable .travelfingimoneldirection, and the load of thesec- 10nd: Land `four-th conveyors, and )sof on, :will 'all' on themain'cable when traveling in: the opposite zdiiection, and the load fon the tfrivc lavill be substantially: runiformall the time.

'IntFig 9 theV room conveyorsiareshown -dischargingfinto mine. cars '2105, standing on the entry vtrack 106. lltwvfill bewunder.a stood,-so far-2 als-concerns 1rmost Vfeatures ofthe linvention, .lamconvjeyor inechanisinof any ldesired character-could be `used-,fin .the entry ,ein place :ofthe cars. A y

'Ihe entire-system does :away with @the f.necessity of men; pushing coall cars fto' and 'Ciro'. in! ithin veins, an d-v 1 also fobvi a'tes the' fueces'sityof thealternative, ithatzvis, blasting i movingltlie dislodged coal, from its dislodgmentl from the vein to itsfconveyance `out of the mine. It will beunderstood that the vdisclosure of the invention in connection .with coal mining merely illustrate one very valuable use thereof, and that theinveiition isl useful elsewhere and in other ways in conveying loose materials.

Means are provided for facilitating the passage of thev pusher lblades over large lumps or piles of material on the return stroke, so that the blades will not-push the.

material backw'airdly or the pusher blade structure will not Ybe liiited upwardly or be otherwise displaced or disturbed. vAs einbodiedthis is shown in Fig. l0, which shows the arms 12 extending backwardly in the direction of inclination of the blade l() and of a length sufficient to give 'a relatively high lift to .the blade. The length of the arms 12 will regulate the height to which gether also'i'ormed in detachable and con-4 nectable units corresponding to..A the trough units, means for reciprocating the blades together by means of said connections', and

means whereby adjoining sections may be connected together and disconnected from eachother. l

2. A conveying mechanism for loose inaterials including in combination a .conveyor trough having interchangeable unit sect-ions, pusher blades for reciprocation within the trough, connections between the pusher blades for reciprocating them together also formed in detachable and connectable units corresponding 'to the trough units, and

means .onftlie ends ot' the sections for attaching them together.

3. A conveying mechanism for loosemal terials including in combination aco-nveyor trough having interchangeable unit sectiqns, pusher blades for reciprocation within the trough, connections between the pusher blades for reciprocating them together also formed in detachable and connectableunits coresponding to the trough units, and abutting flanges on the ends of the trough. sections and means orconnecting said flanges together.

4. A conveying mechanism for loose materia-ls including iny combination a conveyor trough having interchangeable unit sections, pusher blades for-reciprocationwithin the trough, connections between the vpusher blades for reciprocating them .together also i formed in detachable andconnectable units corresponding to the trough units, and abutting reenforcing members having flanges on the ends of the trough sections and means for connecting said flanges together.

1 5. A conveying mech-anisn'i for loose materials including in combination a trough made in portable, interchangealole. sections, a material conveying device within the trough including a series of. pusher blades,

a series of rails connecting said pusheil blades to reciprocate them together and supporting means for the'blades and rails running on the edges of the trough.A p Y 6. A conveying mechanism Jforloose materials including in combination a trough. a material conveying device within the trough including a series of pusher blades, a series. of rails connecting said pusher `blades .to reciprocate them together and means engageable over the outei` edges ofV the trough or preventing side lash of the and their connecting rails.

pusher blades 7. A conveying mechanism for loose materials including in combination a trough made in portable, interchangeable sections, a material conveying device Within the trough including a series of pusher blades, a series of yrails connecting said pusher blades to Vreciprocate them together and means for preventing side lash of the pusher blades and theirconnecting rails and for supporting the pusher blades and their connecting rails on the edges of vthe, trough.

8. A conveying mechanism for loose materials including in combination a trough, pairs of rails extending valong at either side and' near the top of said trough', pusher blades iitting within `and reciprocable along said trough and mountedon said rails, and' supports for said rails and blades resting on the edges of said trough andv permitting reciprocable movement thereof.

9. A conveying mechanism for loose ma terials including in combination a trough, pairs of rails extending along at either side and near the top of said trough, pusher blades fitting within and reciprocable along said trough and mounted on said rails, and

.supports for said rails `and blades resting on the edges of said trough and permitting reciprocable movement thereof, and means :tor preventing side lash of said structuie.

10. A 'conveying mechanism for loose inaterials including in combination a trough made in interchangeable unit sections, pairs 'of rails made in Linterchangeable unit sections corresponding tothe trouglisections, extending along at either side and y,near the top of said trough, pusher blades fitting llO . and' mount-eden said: lrails,-:.and: supported Within i an di reciprocablex. along -saidn trough@V saldi rails and bladesrestingrgon,the edges of said 4trough' an d. permzi tti'iig reciprocable movement thereof.-

I and having a ipivot. support on said struc ture vandfliavingialso ani-additional supportfrom said structuiie'.A

12. A conveying mechanismy forloosema'- terials lincluding."=iniV combination: a trough madeinf. inter-changeable unitI sections, af bladeLA connecting structurel reciprocable along the trough, inclined pusher` blades i ttingyivithin thetrough andhavinga pivot support `on said structure and a rigid sup portrbetween la pusher blade and' said structure; forA limiting the pivotalf` 'movement of the-loaded blade.

13.. Afconveyiiig mechanism for loose.v niaterials including in combination'a-I trough, madeinV inter-changeable." unit sections, a1 blade connecting structureI reciprocable alongr the-trough, cable means -for recipro eating said blade'y connecting structure, inf-- clined pusher blades litting Within the troughy andy having a pivot support onwsaidy structure andfmeans between: a pusher Iblade and saidy structurel for limiting the pivotal movement of the loaded blade 14; A conveying meclianisinpfoi' loose materials including in combination a series of reciprocating pusher blades, and connec tions therebetween fonreciprocating them together, a trou-gh- ,ivith'in which said 'pushel bladesreciprocate, the trough havinga bot-f tom and tivo. sides, but at'its materialieceiving endv having only a bottom andonel side interchangeablev from oneA side tothe other of thebottom.

15. A' conveying inechanismfor loose materia-ls including v in combinationa series of reciprocating pusher blades,v and connec tionsl therebetween for reciproeating;themtogether, agtroughj Within which? said pusher-A blades reciprocate, the-trough havinga bottom andtWo sides, but at'its material re` ceiving end having only a bottoni andone side interchangeable from oneside to the other oitheh bottom, said connections a between the blades ybeing elevated. :at thereceiv f in'g'end to 4permit 'theisupplyg of the floose mas terial 'tlierebeneath onto @the trouglii bottom.`

16. Al conveying mechanism for.. loose; ina*- terials including in combination a trough, pusher blades fitting Within: the trough: :and reciprocablef therea'long,`l connections :between the blades.,` supporting means fonthe pusher blades/and connections resting upon. and" re.`

its materiali receivingocnd hai/'ing' atbottomj:

ail-diene s idef'an-d. said supporting means ,ati said receiving end being in an elevated posi-5- tionx above'ithertrough' and ineaiisior `sup porting and guiding Vsaid guiding means `in" reciprocable. theieivitihiii', connectionsy be#y tween said: pusher blades for z recipi'olcatiiigl themitogetheryand reciprocatingmeans com,- prismg awcablei attachedsto saidyconveying.

mechanism near :either vend thereof for 'giv-i ing -a. positive; pull toy .the conveying `mec-liar. y

nism in both directions.

18. A icionveyingfinech anisnif )fori loose iiia'- n' teria'ls :including in combination-ai trough; ai

material' conveyingmechanisml .comprising :ai

plurality of pusherblades-'littingf and: r Lcip-'l rocable'.therewithin, connections sloetiveeniisaid.l

pusher blades 1 for reciprocating f them: tos gether, automatically operating 'reciprocat-j ing. means comprising.'ia. cable attachedi'td said convey-ing mechanism` near 1 either;y end thereof, andj` a directioniai'eversin'gzi'pulley over Whichithe cable runs;l I

19j.k A'vconveying mechanism Vforfloosefmaterials includingf in combination a xtiough,I a;

plurality."v ot pusher blades '.,i'it'tingzc-y and.; re-

together, and i automatically operating; reiI ciprocating, means for giving gpositive; pull;

to the conveying,mechanism.ingfboth-.direcfn tionscomprising; a i member travelingv inv av longitudinal pathi. and flexiblei connections therefromi :toi either endfof saidi `conveyinog` mechanism., 'l if f 20. i Azconveyingmechanisnrifor loose ma,- tei'ials including. in combinatioiii: aV :.tiough,= .a` material conveying;inechanismfgcomprising a plurality f of E pusher 1 blades r iitti'n-gi` and reciprocable therezwithingi `connectionsabetiveeni said pushervblades for f recipiiocatingg them. together,A and y automa'tical'lyf` operating'` re-ff ciprocatiingfcrmeansfifoii5gaf-ingrl to Ythe" conveying'mechanism vini;` both direc-y tions comprising ay i member traveling s 'in a longitudinali p including.- aadireotioiiii-eversing"device ,thererfronirto!` either .fendi-.ofy 'sa-idwconveying. mechasl lliSIIlr. y

2l. A conveying mechanisifnizfor:loosegmae terialsfzincludingf. ins: combination2 a: ;p luial-ity off'troughf conveyors,vv :4 each? trough.A having; a

material conveying.V inec-hanisiii,iy including.;y a; f

rposit'ivelpulliy ath :andi lexiblewconnections lio- 95` material.` conveyingmecha-nism; coiiiprisingl` and connections from said reciprocating tion of inclination of the pusher blade and vmeans 'to each of said vconveying mecha nisms.V

22. A conveying mechanism for loose niaterials including in combination a plurality of trough conveyors, each trough having a material conveying mechanism including a plurality of reciprocable pusher blades; reciprocating in the tro-ugh and connections therebetween for reciprocatingy them toy gether, a common actuating means for said conveying mechanisms including ra cable -having two oppositely reciprocating reaches extending past said conveyors and cables from the conveying vmechanisms of the various conveyors attached to lsaid two cable reaches. y f

'23. A-'conveying mechanism forloose vinaterials including in combination -a plurality of trough conveyors, each ltrough having a materialconveying mechanism including a plurality of reciprocable pusher blades reciprocating in the trough and connectionstherebetween for reciprocating them. together,y a common actuating means for said conveying `mechanisms 'including a cable having two oppositely reciprocating reaches extending" past said conveyors'and cables from the con-L veying mechanisms of the various conveyors attached .in alternate relation lto said two cable reaches ,so that the load from one'conveyor'fwill occur on the opposite reciprocav,inclination of the pusher blade and pivoted a and sectional trough, a bladeA actuatingv structure supported upon and r'eciprocablel to said ractuating structure. n

25. A conveying mechanism for loose inaterials including in combination a trough,- a blade actuating structure reciprocable'falong the trough, cable means for reciprocating the blade actuating structure -an.finclined pusher bladewithin the trou'g inclination of the pusher blade and pivoted to Asaid actuating structure and of sutlicient length to lift the blade above said reciprocatina structure. p

26. conveyingmechanism for loose materials including iny combination a portable along the trough, cable ineans'for reciproeating the blade actuating structure, an vinclined pusher blade within the trough and an arm on which the pusher blade is mounted and extending backwardly in the direc- I and an arm; Von which the pusher blade isivmounted andf extending backwardly in the direction of v longitudinally lmeans for reciprocating thel pusher blades,

pivoted to 'said actuating structure.

27. A conveying mechanism for loose materials. including in combination a portable and sectional trough, a -blade actuating'.

structure supported upon'` and reciprocable along the trough, ycable means for reciprocating the blade actuating structure, an in-' clined pusher blade within the trough and an arm on which the pusher blade is mounted and extending backwardly in the direction of inclination of the pusher blade and pivoted to said actuating structure and of suiiicientlength to lift the blade above said reciprocating structure. f y Y 28. A conveying mechanism for loose nia- Jteria-ls including in combination a series of iso conveyor sections vhaving a bottom and two sides and a` material receiving section having a bottom and only one side, whereby maL terial may be fed in substantially at the level of the bottom, and a plurality of material advancing pusher blades reciprocable along the conveyor iii both the two sided and one sided'sections, and means for reciprocating thel conveyor blades. i

f f 29. A conveying' mechanism for loose ina-i.`

terials including iii combination a series of conveyor sections having a bottom, adapted to. be positioned very close to a supporting Hoor, and two sides and a material receiving section'having a bottom and onlyl one side,`

whereby material may be fedy in substantially at the level of the bottom, and a plu-` rality of material advancing pusher blades reciprocable alongthe conveyor iii both the twol sided and one sided sections, and means forreciprocatingthe conveyor v blades.

30. rA conveying mechanism for looser ma-` terials comprising abottom adapted to rest just above a supporting floor, a side wall` a plurality vof pusher bladesV reciprocable` along the bottom andsaid Yside wall., the

other side of the conveyor `being open for receiving loose material. n

vv3l. A conveying mechanism .for loose materials, comprisingy a bottom flat throughout, and adapted to 'rest vjust above a supporting floor, and a side wall, pusher blades i'eciprocable therealong,

the other side of the conveyor being open whereby loose material may be loaded thereinto from that side.

32. A conveying mechanism for loose vmaterials comprising. a trough witha botvthe path of the reciprocating pusher blades, o

and be conveyed from said loading point alongthe two-sided part of the conveyor.

33. yA conveying'niechanism for loose materials comprising a` trough with a bottom, adapted to rest close to a suppo-rting floor, and two sides, a series of pusher blades reciprocable in the trough, one ofthe sides at vthe material receiving end ot' the trough being omitted at a loading place for allowing the lateral loa-ding of the loose material into thc path of the reciprocating pusher blades` the series of pushe-r blades engaging with material at said loading point and conveying it along the `two-sided part of the conveyor.

ill. A conveying mechanism for loose inaterials comprising a trough With a bottom and tivo sides, one of the sides of the trough being omitted. to provide an opening into which the loose material may be loaded from the side, and a plurality of pusher blades reciprocable along the tivo sided part of the trough and back and forth in said loading opening.

35. A mine conve-yor system including in combination a series of trough conveyors located in side by side mine rooms, yand each including a series of reciprocable materialconveying blades Within the trough, and common actuating means for the various sei'ies of conveying blades located in the mine entry.

8G. A mine conveyor system including in combination a series of trough conveyors located in sideby side mine rooms, and each including a series of reciprocable materialconveying blades Within the trough, and common actuating means for the various series of conveying blades located in the mine entry. the actuating means alternately operating the pusher blades in various conveyors in the material conveying direction to balance the load.

37. A mine conveyor system including in combination a series of trough conveyors located in side by side mine roms, and each including a series 'of reciprocable materialconveying blades Within the trough, and common actuating means for the various series of conveying blades located inthe mine entry, and comprising an actuating cable for each conveyor and a cable extending along the entry to Which the conveyor cables are att-ached. n

38. Amine conveyor system including in combination a series of trough conveyors located in side by. side. mine rooms, and each including a series of reciprocable materialcommon actuating means for the various series of conveying blades located in the mine entry, and vcomprising an actuating cable for each conveyor, anda cable extend- 'ing along the entr f to Whichthe conveyor having an extended fla-t bottom, adapted to lie very close to a supporting floor, and two sides, -a series of material-conveying pusher blades reciprocable in a flatpath along rthe bottom, and one side of the trough being open at al loading place, and at least one of thev pusher blades being reciprocable pastv the open-side loading place, and means for reciprocating the blades.

In testimony whereof, I have. signed my name to this specification.

KENNErHnAvIs.

4conveying blades Within the trough, and

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