US1768585A - Elevator-dumping device - Google Patents

Description

July 1, 1930. J. FAIRH EAD I ELEVATOR DUMPING DEVICE 2 sheds-sheet 1 Filed Feb. 28, 1929 July 1, 1930. J. FAIRHEAD 'ELEVATOR DUMPING DEVICE Filed Feb. 28, 1929 2 Sheets-Sheet 2 Patented July 1, 1939 V utasss JAMES rnmnnnn, or 'rononro, on'rARIo, CANADA- ELEVATOIt-DUMPING DEVICE Application filed February 28, 1929. Serial No. 343,454.

cifically in the claims for novelty following a description containing an explanation in detail of an acceptable form of theinvention.

The objects of the invention are to construct an elevating dump bucket in which the operation of dumping the load is simplitied and made automatic; to economize 1n the expenditures of time and labour occu,-.

pied in elevating and dulnping a given quantity of material; to reduce the power re-.

quired to operate the elevator by shortening I the distance of travel and emptying nearer the pile, thus preventing crushing and dust, especially in the unloading-of coal and coke, the effect of the dropbeing' elim nated by dumping or unloading the bucket at a very slight elevation above thepile; to eliminate the necessity of lowering the coal onto the pile by way of tricklers or chutes commonly used when the coal is lowered any dlstance from the top of thestorage bin; to empty the elevating bucket at any convenientwposition in the path of its travel; and genorally to provide an elevating dump bucket, simple and durable in its constructional features and eflicient in operation.

In the drawings, Figure l i's a plan view of'the invention.

' Figure 2 is a vertical sectional view showing the unloading mechanism in' operation. Figure 3 is a detail section'vlew of the unloading doors 1n thelr closed position.

Figure 4. is a diagrammatic elevatioiial view of this invention in operation.

Figure 5 is a front elevational view of the bucket.

Figure 6 is a front elevational view show? 7 g I ventzthe material from collecting in the cor ing the bucket in its unloading position. 7

Like numerals of reference indicate'core p ing 29 when the bucket is being dumped responding partsin the various figures.

In most mechanlsms 1n use at the present tune for elevating and unloading coal into amount of coal is broken or ground up in the topof the pile of coal in' the bin, when the bucket automatically opens to deliver storage bins or silos in coal yards, it is neei essary to elevate-the coal to the top of the bin or' silo before allowing it to fall into 5 same Thecoal is usually lowered from the top of the bin or silo" by way oftricklers or opposed chutes. An objection to this I method is that considerable time and power is required to'elevate the coalto the top of the bins before dumping,and a considerable" this way, resulting in undesirable coal dust:- In my invention it is necessary to only elevate the bucket to a distance slightly beyond v the coal into a hopper'and thence to thejbin or silo at this level byway of a chute, thus eliminating the necessity of trickle rs and greatly reducing the time required I in 'elevat ang and unloading. 1. Referring to thedrawings, thev numeral J l 10 indicates a rectangular ;receptacle or I V bucket having end walls 11,-the front wall 12, the rear wall. 13, and the slanting bot}. tom '14. ,The bucket is reciprocally mounted in a verticalfframe22 consistingiof the frontcorner posts 23; and the rearicorner post 24. The corner posts 23'and 24 are? preferably situated at the ends of the bucket Y and the front corner posts 23 areso arranged that they will. project slightly beyondlthe" Z w front wall 12 of, the bucket, as at 23A.. i

. Vertical cleats or strips 25 are secured on each end wall 11 and adjacent-each corner. The cleats-25 lie in'a' groove 26 formed by the undercut strip 27 secured to the corner posts 23 and 242. Thecleats 25 are adapted t to reciprocate in the groove 26 as the bucket is raised or lowered in the framework-22 and serves to retain thebucket 10 in its: proper path. A rectangular opening 29 is,

formed in the lower portion of the front wall 12 iv and eXt'endsto-a point as at 30 adjacent each end. Guide plates 30A are situated at each of the front corners topreners and to guide the material to the openoremptied. A door 31 is hingedly mounted The door 31 is adapted to swing by its own weight and close the upper portion of the opening 29. A second door 33 is pivotally 'mounted at its lower edge to the floor 14 of the bucket 10 and adjacent the front edge thereof as at 34. The door 33 in its closed position closes the remaining portion of the opening 29 and has extensions or cleats 35 secured adjacent its upper edge and extend ing therebeyond adapted to bear on the outsition. At each point whereit may be deforce the'door 33 to aclosed position.

sired to dump or unload the bucket 10, a gap 40 is formed in the tracks or angles 36. At the upper end of each section of track 36 between each gap 40, the track 36 is bent outwardly as at 41 to form a guide 42 which serves to guide the roller 37 back to the track 36 when the bucket is lowered below the gap 40.

Thus, when the bucket 10 is raised to this position, the door 33 with the roller 37 pivots about the hinge 34 to an open position with the door 33 in line with the slantini.v floor '14. In this position the material in the bucket will empty through the opening 29 forcing the door 31 to swing outwardly to an open position. After the bucket is emptied, the door 31 swings to a closed poistion and as the bucket is lowered below the gap 40, the rollers 37 take a position bearing against the angles or tracks 36 and 45 is a hopper into which the material is dumped from. the bucket 10. An apron or chute 46 is situated in the upper side of the hopper 45 and adjacent the gap 40. The

door 33 when it swings open at this position, rests on the apron 46 as at 47 and any ma terial in the bucket 10 is carried by way of the door 33 and apron 46 into the hopper 45. A vertical'fla-nge 46A is formed at each side of the apron 46 to prevent the material from spilling over the sidesof the apron. For the purpose of closingany of the gaps 40 so that the bucket 10 may be elevated above this point without emptying, a door 48 pivotally mounted at its upper edge as at 49 adjacent the lower end of the next section of track36, carries a strip 48A adjacent each side thereof which falls in line with the tracks 36 when said door 48 is in its'closed position so that the rollers 37 on coming to a gap 40 closed by the door 48 will bear on the strips 48A until it reaches 26c next section of track 36 above the gap In Figure 4 I show the unloading bucket in operation. 50 are silos or bins in which it is desired to store coal or the like. The framework 22 in which the buckets are raised or lowered'is located adjacent the silos 50.

In this case I show two buckets with their respective framework 22 in operation and serving two silos or blns each. With this each gap when desired. A pivoted spout or chute 52 is mounted under each hopper 45 and is adapted to lead into adjacent openings 53 formed in each bin 50 and at this level. Thus by means of the pivoted spout or chute 52, the coal or other material may be delivered at'the openings 53 in either of the silos 50.

What I claim is: 7

An elevator dumping device having means for elevating same and comprising a rectangular bucket opened at the top and having an opening in the lower portion of .one side, a slanting floor in said bucket converging towards said side opening, a door hingedly mounted above said side opening and adapted to swing by its own weight and close a portion of said opening, a second door hingedly mounted at the bottom of said bucket and adapted to swing to a closed position over the remaining portion of said opening and having extensions at its upper edge adapted to overlap said first named door, a vertical frame consisting of four corner posts suitably braced and forming a reciprocal mounting for said bucket, a projecting track on adjacent sides of two of said corner posts situated adjacent said side opening in said bucket, rollers rotatably mounted on the outside of said second named door and adapted to bear against said projecting track to retain said door in its closed position, gaps in said tracks at predetermined spillway positions, bent portions at the upper end of each length of track forming a guide adapted'to receive and guide said rollers back to said tracks when said bucket is lowered below the position for emptying at any of said spillways, and pivoted doors at each of said spillways adapted to pivot to a closed position and lengths of track secured thereon positioned to bridge said gaps.

Signed at the city of Toronto, this 13th dayof February, 1929.

JAMES FAIRHEAD.

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