US2325715A - Apparatus for conveying pulverulent, broken, or like materials - Google Patents

Description

G. H. STRAIN Aug. 3, 1943.

APPARATUS FOR CONVEYING PULVERULENT, BROKEN, 0R LIKE MATERIALS Fil ed July 9, 1940 2 Sheets-Sheet 1 N InvenZbr 6 fidrry J'Z'znim 9L ##ormggs a ar 3, 1943. G. STRAIN 2,325,715

APPARATUS FOR CONVEYING PULVERULENT, BROKEN, OR LIKE MATERIALS Filed July 9, 1940 2 Sheets-Sheet 2 [1V VLF/VIZ- 0/? George Heir/ u Si'raiIL rateredates.- 9 '3 V .rigid member areciprocating "r'noti'on havingila vertical component, and iayscree'n mounted on the 1 mally heldin, or nearly in, contact with the-frigid i force away fromtthe position of contact. '1 f: N;

, 1 i The present invention is based; on" the tobserva negligible; H r I ,h p

n The action of thema chineis similar-"to that 1" described "in us: Patent No.2;192;66&; the ahvn carries the 'traywith it in onegstrolte, andon the z 'tarde'd, but the r'naterial can still be conveyed even if the angle of inclination of the'tray ap proachesthe angle of repose oflthematerial.

or leaf Springs, bending-in the vertical plane jis insufficient to a claims Iscreeni'ng apparatus "which: comprises a rigid member or anvil; means for imparting tothe rigid memberrin such? a manner that itwi's normember byj'the forcefof one: 0l' 'II lQI QSDIiI1'gS bX' their equivalent; but .isyi'ree ito move against such 1 tion that a machine for conveying pulizemlent,

broken or like'rnateria1 isQcjbtained if ai itray"is mounted. (alongside the :rigid lmember in the aforesaid. manner and therigid; iriernberfis given 1 i v areciprocating" motion having a' componentparallel t0 the direction inwhich the material i's to i beconveyed; this arrangement enabling the imof n manta of the apparatus totbeisubstantiallyyegual V to the momenta ot the impact; thus rendering i extraneous vibrations eitherfno neexist t v return strokeT-the "tray lasbhind fthef anvil; and is stnick by fthe returning. anvilfat orfne'ar its point of maximum velocity, thefmomenta'of anvil' h.

and tray substantially destroying one 5 another. At each I impact the jr'naterial fon the tray is lad Vancd .by i a certain distance; and is thusgradu an onveyed I1 .7 7 V @T e t m tiayiasusedhereinincludes so ens and other deviceshavingja surface'such thatjhe material re's ting i t hereon can T'advan'lc'e "relatively $1 thereto when thetray is? subject tome impacts o} I the-anvil. y l 1 The traymay be plane or of any other desired shapewhichpennits the material to advance over its surface, and maybe horizontalor-inclined.

' It the tray slopesdownwa'rds in the directionof advanceof the material the speed of advance will f beincreased andthe material will bespmew'hatf separated at each impact fromthe tray, return ing to the latter under-the actionof gravity. The latter effect is of advantage in screening theme. terial, the tray being-'in-this in stance a screen;

V I1 the tray slopes upwardsin thedirection of advance ofth'e material, theadvance will be re- The traymay bef'mounted on thelanvil by wil If the rigidity of the springs to hmmvshoh ooNvEYING PULvERii :h T, BROKEN, on LIKE MATERIALS enters-w. sexed ami K Application July a 194o,sei i31 NdQsMsss' L I In aGreat Britain Augustg8m1939 ipl i isg 198-, 6

i h The invention is illustrated by way: ofrexarnple in the accompanyi gidrawings in which-a; 4

accordinguto' the inventionglpi i A traywl is mounted alongside an aanvil 2by means OI'ICOiI springs {fixed atone end: to the anvil andsat thelother to bolts 'lpassing through alplate. 5 whichcissboltedr to strutsL-S. pivoted on thelfixed membeis 1. Tlfiftraygis pivotallyab tacheato stile/struts sfibyr means pf bolts .3; which i through perioratibns' in: angle plateg 9 -riveted to the screenand through bearings I I 0 in the struts 6J The bp1bs 4 xare yh eld in position by wing-nuts l l which enable the periodicity- 0f the wwith'an V reciprocate at a frequency; of,

, 'inii'riute' and j millimetre- "Ihee'nd's of the connecting rodsj'll remotefromthe eccentric l3 are pivotally mounted ymns in bearings struts-l 5 which are t an amplitude? 01E the ender of a themselves pivotaily nounted on-the member 11.

i Supporting the "endof'the" t yy mot from r m 'fii iot'a ati sh g f a T' f i? 1 ed-up'ordown; in Orderrto valfy the inclina Impact plates '18 are fixe every oscillation. The plates l8 and anvil 2 are provided with rubber pads I9 to reduce the shockj o! the impact. i

"The material to be conv yed is fed'to the my I from a hopper 20 and at each impact is adw vanced towards theright as seen in the drawingsi I The tray is provided with Wing' 2| which sprinkle the material in a wide; shallow stream to a deflecting plate 22 which delivers thejmaterialto any desired position. i I

i The invention overcomes the difliculty experi enced in conveying materials, especially flocculent or cohesive materials, from a hopper or bin ervmaybelfurther supe ported by 'strutsand ties which permit it to move freelywith andaway, from the anvil in 'a-substah i tiallywhorizontaiiplane. The: struts and ties may .be used fonadjusting;the inclination' of the tray.

et-resist sh; as described above, strike the anvil .2 once in r 1cm: or ,1, a 1. Apparatus j for conveying pulverulent ;or broken material, whichocomprises arigid memf ber, a tray mounted alongside the rigid member in such a manner that the tray or a member atmotion having a component parallel to the direction in which the material is to be conveyed, the

tached thereto is normally held in, or nearly in,

to the momentaof the impact. l V 2. Apparatus as claimed'in' clai 1, wherein the tray and the direction orfos'cillation'cf the rigid members are substantially horizontal.

3. Apparatus as claimed in claim 1, wherein 20' r o, 7 ing horizontal reciprocation to said anvil; striker the tray' is suppo'rtedby a device which enables theinclination of the tray to be adjusted- 4.Appajratus as claimed ln claim"l', wherein the trayis supported by and/ordepends zifrom rods to which the-tray pivotally attached and which are themselves'plvotally rnounted onfixed oradjustable'bearings; I

a 5 Apparatus fa's clalmeddnrclalm 11,. "wherein the member which is. struck by the anvil 'is ifixed to one or more of the said rods,

6. Apparatus for conveying ipulverulentor broken material comprisingarigid member, a

tray mounted alongslde saidrigid member in 7' contact with the rigid member by the force of" an elastic member butis free;tomovoagainst such force away from the position pf; contact. and

means for impartingto-therig'id membe a re-- tray and the direction-of oscillation of the rigid memberbeing substantially horizontal, and sup porting means for said tray, said supporting means being pivota'lly mounted onbearings', said tray being pivotally attached'to'said supporting means. r v

a 8. Infan apparatus forlco nveyingpulverulent 10 or broken'material, a shallow, wide open tray,

.o-imeans forsuspending said tray for substantially "horizontal reciprocating motion, means indepen'd'ent of said tray and stationary and having a delivery mouth close to the bottom of the shallow tr y for delivering the material to the tray while 7 the tray moves therebeneath to distribute the material in a 'wide, shallow substantially uniform stream, an anvil also-mounted to reciprocate longitudinally in parallelism with the tray'and ada jaceht one en-d thereof, means for communicatmeans movable back and forthsubstantially horizontally with said tra'yand positioned tobe engagged and struck by said anvil and turn to reiact and. strike said anvil,.both impact blows tak mg, place in a substantially horizontal direction for drawingsame yieldably together.

9. An apparatus according to claim 8, further characterized by the fact that said striker means I:

l is. carridby. links pivoted to the tray and to a such a manner that the tray ova-member.- attached thereto is normally'held infor nearly in,

elastic 'member', but is f freef'toj move againstsuoh force awa fromthe positionfoi contact;"me

for imparting to the rigid member areciprocating motion having a (:omponentparallel t0 thedirection in which the 'm terialis to beecnveyed, said arrangementenablinsxthemomenta oi; the

'7. Apparatus for conveying- :pulverulent; or broken materia which compri es-a rigid member, a tray. mounted alongside Y the frigid. member in such a manner that the traygor a member at;-

' tachedoth reto is normally held substantially in 7 con t fih't e ris -m mberby he fiq s of. an

elasticmember but i sff ree itc move against. such force away' from the positionpf contact, means for imp rtin to the'rigid memberarec m ocatin or near theforward edge Y edsupp rtr I I 10. :An, apparatus accordin o claim 8, in

which said yieldable means is in the form of coil adjusting the tensicn of springs, withmeans for said springs;

1'1.;.Apparatus= acc rding claim 8, wherein strutsare pivoted toaan end portion-of said tray and depend iromthe tray, means 'whereby' the lower endsof said struts are pivoted tothe apparatus frame, and means whereby'said struts carry said-striker means. :1 V --12.LApparatus accordins to' claim 8.; in which eccentrics are. mounted in substantially horizon-V tal alinement with said anvil, and substantial horizontallinks-are pivotedbetween said anvil and said eccentric.

' L 13. Apparatus according to claim' si further chara teri d? in that the tray converges toward a point at its delivery Lend :with'diagonal side edges, wings extending downwardly and iorwardly from said diagonal edges on which the material isgsprinklecl in a-Wide 'shallew stream, V and a defiecting plate forwardly of, t e'forwazd

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