US1518951A - Bucket conveyer - Google Patents

Description

Dec- 99 F. B. ANDRUS BUCKET CONYER Filed Aug. 17, 1922 3 Sheets-Sheet l lf6 zz K @cf/*22021* jr/mlm @f/:draw

l Dec. 9, 1924. 1,518,951

F. B. ANDRUS BUCKET coNvEYER Filed Aug. 1v, 1922 l 3 sheets-sheet 2 Ja, ,2'4" v Z4 f5 /ml/m @Mm/ww nec. '9, 1924.

F. B. ANDRUS BUCKET CONVEYER Filed Aug. 1'?, 1922 3 Sheets-Sheet 3 Patented Dec. 9, 1924.

FRANKLIN B. ANDRUS, OF CHICAGO, ILLNOIS.

BUCKET CONVEYER.

Application filed August 17, 1922. Serial No. 582,540.

To all 107mm it may conce/rn.'

Be it known that l, FRANKLIN B. AN- nuis, a citizen of thc United States, residing at Chicago, in the county of Cook and State el Illinois, have invented a certain new and useful Improvement in Bucket Conveyers, of which the following is a specification. f

This invention relates to bucket conveyers, more particularly those in which the buckets are pivotally suspended upon a link belt and have overlapping lips for preventing the material from falling down between them. Conveyers of this type have been made in which the buckets are suspended from extensions of the inner links beyond the chain joints so that in passing around the corner wheels, they travel on a larger circle than the chains and are thus automatically separated at the turns so that the overlaps may be reversed and prevented from improperly tilting the buckets. In such previously known conveyers, however, the construction is such that if the extension link breaks at any point, the entire apparatus is crippled, and it is necessary to take the chain apart and then reassemble with a fresh link. One of the objects of the invention is to provide a construction such that if a bucket-supporting element breaks, a repair` can be made by a series ol very simple manipulations and the renewaliol a small and simply constructed part. 1n the structure ot this invention, it a bucket supporting element breaks, the chain will still maintain its assembly and the only thing that need be renewed is a small arm which carries the pin on which the bucket is supported. Another object is to provide a construction in which the links are pivotally connected by sleeves orv bushings instead of pins, thus enablingthe links to hold together when the link pins or shafts are withdrawn for making a repair, said sleeves also forming the axle on which the rollers rotate. Another object ot' the invention is to provide a simple interlocking connection between the. bucket supporting arms and the links to which they are fastened. Another object is to provide simple and efiicient means for tightening the link pins and co-operating parts without preventing free articulation between the links and associated elements. Still another object is to provide advantageous means for greasingthe contacting` part-s and keeping` them greased for a long period of time without attention.

' Referring to the accompanying` drawings in which like numerals denote like parts throughout the several views:

Figure l is an assembly view showing a side elevation ot' the buckets, links and two of the corner wheels.

Figure 2 is a similar View on an enlarged scale, illustrating to better advantage the manner in which the extension arms operate to automatically reverse the overlapping lips'ot' the buckets.

Figure 3 is a side elevation, showing the arrangement oi' the rollers on the tracks and the relation of the links and their extension arms. y

Figure '4f is a plan section of a portion of a horizontal run showing the parts assembled in their natural relation.

Figure 5 is an axial section of a roller with a portion of the associated links and other elements, the link pin and extension arm being shown in full.

Figure 6 is a sectional view on the line 6 6 of Figure 5.

Figure 7 is a perspective view of one of the inner links which co-operates with the extension arm.

Figure 8 is a distributive detail view showing the preferred construction ot' the extension arm, link pin and bucket pin.

Figure S) is a perspective view ot the preferred form of bushing.

Figure l shows conventionally two chain carrying wheels 10 and l2, pivoted on widely separated shaftings ll to, in conventional manner, take care ol a chain mechanism 16 equipped with pivoted buckets 18 ywhich must be kept in normal upright position during all conditions of movement of the chain, either vertically at the sides of the wheels l() and 12, or horizontally between them, the chain mechanism being, during said horizontal movement, sustained from suitable rollers 20 engaging the conventional form of horizontal track 22, clearly shown in Figure 2. The chain proper is made up of parallel links 24 and 26, pivotally Iconnected together on axes coincident with those of the rollers 20 and one link of each pair, in the particular case here illustrated, link 26, carries a projecting crank arm 28, whose crank pin 3() pifotally supports one adjacent side of a bucket- 18. A problem solved.: by this invention is*l to niakle this crank'l arm v281. dbtachable for repair purposes and to so pivotally mount adjacent pairs of links that the replacement of an arm 28 may take place Without disconnecting the pivotal-1 are rangement of the links. In accomplishing this purpose, a sleeve 82 is-insertedithrongh each end of the links to be pivotally connected. The sleeve isscutiawayrali itsfoppoL siteen'ds in notches 5S-ofi substantially less depth. with reference to the'end oi. the lsleeve than: the; thickness off the" adjacentioutside linie ends; 24e and 26swhi'ch are to be seL cured together" iin spaced' apart relationK so that' when a snitahlewashenel and. clamping: devicel such asal nutl 36 is applied to the shaft 38 on crank arnr 28,` the out'en linlo ends 2li andi 26lv willy be clamped: in the not'chesv?) on; the ends of thef sleeve 32 and? spaced apart one from. the other1 so that they cannot possibly: bind: upon'- the intermediate link ends 21-ll" and 2Bb which are rotatably mounted* on the sleeve" 32. lThe spacing: apar-t ci* the link ends2fflfl' and 2Ga by. tlie sleeye'- 32 saloient. so:that1 ill' the nut 36 is removed, thereby allowing the shaft. 38 and crank: amnr 2S and attached parts, tol be removed, the link ends112lb and 26b Will still? remain piyoted on the sl'eeue 2i` In other' \'voi.cls;- the pivotal relationship of the link' ends: established by the sleeverema-ins the same, at least under' con'.- ditions when a repair! is taking place, Whether the shaft 3S carrying the crank arm 28 is in place or not.

Ai Wlieeh 2.0, heretofore referred? to, is journall'edi on' eachi sleeve 325 between the links described, being separated from. che

inner adjacent links by'suitable Washers 39. rl`h`ese' Wheels are' preiienably made hollowr so as to provide' ai lubricant containing chamber 450 accessibley through a removable screw cap 42. Lubricant in. these'l chamu berslllisa'dhpted' to loW through passages fnl-Lll in' th'e hlubs1-l6 of the Wheels to passages 48' on the ciif'fcumflerenees oil': J@he sleeves 32 and! extending longitudinally thereon under thel bearing, surfaces 50ct tlie link ends 243" and 26, whereby lubricant. in cl'iamb'er lfd is automatically supplied? to` the`= beai'riings oil the' link endsto' llubrioa'le tllein.y ois* they rock on the sie the los can d5 by they buckets 118i is substantial, it is' desirable that( the crank: arms: 28` be secured. in n'on--re-tatable relay` tions-lupi with. the adjacent link 2er; @ne desirableJ n'fianner o'i doin-g this andi that shown in@ the drawing consists-1 in first iiaeei enlarging the link end 26, as clearly shown inilignre 7,.a-nd\ thenproridingit: with a recess on depression 523 of non-circular form.. adapted to receive a non-circular block. 54provided at` the juncture of crank arm 28 andshaft 38 (Figure 8). Obviously, when the parts are assembled With this block 54; in recess 52 and then the locking devioet-S@ is= applied to the end of the shaft 38, the crank arm 28 is secured just as rigidly in relationshipitosthe link 2"-'j\as thoughl itl were made integral therewith' as in. thev prior. art In: addition, my device has the distinct@ admantagethat' ith anything l1appenstotllecnanlo pin. 30,' orl the crank anni theoperatorv cani ab once releaseV cherr look-ing deviceand substitute new parts without pivotally disconnecting the'y chain! andi the supporting Wheel 20 as isf necessary' in the prion' ain.

In order. tha-ti the device may causeAk as little trouble as possible through. 'frictiom the links. are.l made of sufficient site sotliat theslee\fe 'orfbushing 32'canl belarge enough tol forni. ample ybearing surfaces 50 for. the link ends 2:1? and 2Gb" and thelink end 26l is made oii ample size to receive the block 545! having? tapered edges 55e shownk in the drawings,.. the saine beingof sufficient' size to guard as. tar as possible against break,- agerat' this ooint.

lVhat' Ii cl imi is.:

L'. In mechanism olithe class described, two painsot links havingV interiitting ends, sleeve*y through said linkr ends affording pivotal: connection between them, a rollen jo'uiinaledk oni the sleeve intermediate the links, meanson: the sleeve spacing` one pair of! links' from. the other pair oil links and roller, crank armV fior supporting a bucket and means extending' through the sleeve for detachably securing the arm in rigid positionl with. reference to one link.

2..I1n mechanism oii the class described", two ypairs of' links having int'crttingl ends, a2 sleeve throngh said link ends a'lioiid-ing pivotal! connection. between them, ax roller journalecl on the sleeve intermediate the links, means on. the sl'eeuespacing one pair of.w linksy from the other pair of links andi roller, a. crank armi lion supporting a bucket, and means extending tlirouglr th' sleeve for detaichabljT seem-'ing tliearm in; rigid; pos-iVH tion with; ile-*fers ce to one iii s slf seeuir means inelndin-g a non .f ont. the eilanik arm fitting into a recess for it. iir another part.

lin Witness whereof, l? have here'ifilnilloK siubscribed my nain..

FRANKLIN B. ANDRS;

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