US376878A - Ore-crusher - Google Patents

Description

(No Model.) @neem-sheen 1..L

A. P. GRANG'ER.'

ORB GRUSHBR.

No1-.376,878 LPatented Jafn. 24, 1888.

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(No Model.) l

A. P. GRA1\TGERA ORBORUSHBR'. n

No. 376,878. Patented Jan. 24, 1888.

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l A. P. GRNGER.

ORE RUSHBR.

' Patented Jam 24, 1888.

No. 376,878f

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11u/@mini H" UNITED STATES ALvAN P. GRANGER, or DENVER, COLORADO.

ORE-CRUSHER.

SPECIFICATION forming part of Letters Patent No. 376,878. dated January '24, A1888.

'Application filed J une 21, 1886. Renewed November 5, 1887. Serial No. 254,442. y (No model.)

To all whom i may concern.-k

Beitknown that I, ALvAN P. GRANGER, of 1 Denver, in the county of Arapahoeand State of Colorado, have invented certain new and use-- ful Improvements Vin Ore-Crushers; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference' marked thereon, which forma part of this specication.

This invention relates toanovel forni of machine for stamping or disintegrating ores,

, which comprises a .revolving wheel 'mounted The objectof this invention is to improve the construction of, machines of the character above described in several particulars, as will hereinafter appear; and it consisisin the matters hereinafter described, and pointed out in the appended claims.

In the accompanying drawings, illustrating my invention., Figure l is a side elevation of a machine embodying one desirable form of my invention. Fig. 2 Ais acentral vertical section taken through the operative parts of the ma! chine upon linex x of Fig. 3. Fig. 3 is a central vertical section takenV upon line xx of Fig. 2, but showing the several shafts and pulleys in full outline. Fig. 4 is a detail sectional view taken'upon liney yof Fig. 2. Fig.

5 is a detail sectional plan view taken uponv linea: xof Fig. 1`.

Fig. 6 is a perspective View of oneof the flanged sleeves shown in Figs. 2 and 3 as surrounding the" shaft by which the wheel is supported. l

As shown in the said drawings, A represents a heavy revolving wheel or casting, de`` nominated herein and in said prior application a mortar-wheeL7 and- B a crushing -roller which is located over the wheelA and is movably sustained upon the machine-frame in such manner as to rest or ride upon the periphery ofthe said wheel. rljhe wheel is mounted upon a horizontal shaft, A', which extends at` its ends beyond the sides of the said wheel to form y PATENT Ormes. l i (i trunnions,which have bearings intheframe C of the machine, and said wheel isfprovided A upon its periphery with a series of transverse depressions and intermediate prominences, giving an undulating fornito the peripheral Surface thereof.

A2 A2 are flanges extending outwardly'jfrom,` n y n the undulating peripheral surface of the wheel .at each side of the latter, so as to form a trough v or channel of varying depth extending around the wheeljsaid flanges, as herein shown, being formed by a seriesv of plates, A3 A3, applied to the ends of thewheel.

The roller B is made of suitable lengthto freely enter between the iianges A2 A2, and is constructed to rise and fall freely and to roll Op upon the yundulating surface of the niortarwheel as the latter is rotated, so as to crhsh the materialv placed in the hollows or depressions .of the wheel, inthe manner fully setv forth in the priorapplication hereinbefore re-y ferred to. The said roller B maybe sustained upon the machine-'frame by any suitable devices adapted to permita free movement of 'said roller towardk and from the mortar-wheel,

the devices herein shown for this purpos'e'conk sisting of two arms or radius-bars, Bwhich arepivoted at one of ltheir extremities to arms G of the frame C, and are providedwith bearings for the trunnions B B of the roller at 9C VD*,/mounted in the' top of the frameabove the'f said mortar-wheel. Asfar as the Operation of the belt elevator alone is concerned, the material may be fed to the lower endof the said rec anexit-spout, E', at its lowerend and with screens FF above its bottom, said chute being constructed toV receive the crushed material from the mortar-wheel, which materialissepat rated by the screens, so as to allow the discharge of the pulverized portion thereof through the exit-spout E', while the larger parts, or those not suiiciently reduced, are discharged from the lower end of the screens to the elevator to be again' subjected to the action of the crushing devices. The said chute is also adapted to receive the material fed to the machine,which material passes over the screens, so as to cause the separation of any pulverized or fine particles therefrom,while the coarser parts are delivered to the elevator with the uncrushed material which has previously passed th rough the crushing devices,the chute being desirably widened or enlarged at its upper end to form a hopper, E2, for the reception of the material delivered to the chute. l f c The beltpulleys D3 D2 are so arranged with relation to the mortar-wheel that the elevatorbelt D is drawn over or rests against the periphery of said wheel at one 'side of the latter, the buckets D2 upon the belt being'spaced at such distances apart that each bucket will enter one of the hollows or depressions of the wheel as the belt and wheel are moved. As a preferred means of actuating the belt, the latter is provided between the buckets with transverse bars d, which project at their ends beyond the side margins of the belt, and are constructed to engage notch es or recesses a, form ed in the fianges A2 A2 of the mortar-wheel, so that when the mortar-wheel is rotated the belt will be carried or moved with it, thus rendering any separate actuating devices for the belt unnecessary.v The cross-bars d and the notches a are, furthermore, so disposed relatively to the depressions of the mortar-wheel and the buckets D2 upon the belt that the buckets come opposite and rest within the said depressions as the belt passes over the said mortarwheel, the said buckets being made of such size that their outer edges rest or bear against the surface of the said depressions. The buckets D2 have fiat or nearly flat bottoms d', arranged approximately at right angles with the surface of the belt D', and are provided with side pieces, d2, extending from the edges of the bottoms d to the side margins of the belt. When the belt is made of leather, rubber, or other flexible material, the buckets are made with stiii` back pieces or walls, d3, curved to correspond with the curvature of the supporting-pulleys D3 D.

The buckets constructed as above described are obviously adapted to receive and hold the material when upon the upwardly-moving part of the belt D below the mortar-wheel only, this part of the belt being inclined in such manner that the bottoms d of the buckets slope inwardly or toward the belt, so as to form with the belt a V-shaped receptacle for the material. In the upwardly-moving part of the belt above the mortar-wheel, which is inclined forwardly so as to overhang the wheel, the buckets are obviously held in position to discharge their contents upon the wheel. The

buckets are made of such width or size, as

above stated, that their outer edges. come in contact with or press against the face of the mortar-wheel, and it follows that as each bucket is carried upwardly with its load and comes in contact with the face of the mortar-wheel the material in the buckets will be heldin the space between the belt and wheelabove the bucketbottom until the bucket leaves the wheel, when,by reason of the inclined position of the bucket-bottom,the material will slide from the bucket and fall upon the mortarwheel. Inasmuch as each bucket enters and remains in one of the depressions in the wheel the material will obviously be thrown or de posited in the said depressions by the several buckets. The free or outer edges of the buckets are shown in the drawings as inclined downward by their contact with the mortarwheel, this position of the buckets obviously favoring the prompt discharge of the material when the buckets reach the top of the wheel.

.In practice, however, the buckets may remain at right angles with the belt, or may be more or less inclined than shown, according to the form of the mortar-wheel or the relative sizes of the other parts.

To insure that the belt D and buckets shall remain inproper position laterally with relation to the mortar-wheel, the notches a a ofy the wheel-Hanges A2 A2 are formed in the inner faces of the flanges, so as to form end walls or stops, a, engaging the end faces of the crossbars d upon the belt, the inner surfaces of said end walls or stops being preferably made outwardly inclined or aring, as shown more clearly in Fig. 4, so as to direct or guide the said bars into the proper position as they enter the notches or recesses. In the particular construction shown the notches or recesses a are formed partiallyin the thickness of the flanges A2 A2 and partially by ribs a2 a2, cast upon the inner faces of the said flanges; but these parts may be made otherwise in practice, as may be found convenient or desir able.

The parts of the inner faces of the iianges A2 A2 between the notches a a are preferably beveled, as indicated at a2, to guide the roller B to place in casesaid rollcrislifted upwardly and sidewise by exceptionally large or hard lumps of the material being crushed, the ends of the ribs a2 which move toward the said roller being beveled or inclined, as indicated at a2, to prevent the roller striking and catch` ing upon the ends of the said ribs under similar circumstances.

The downwardly-n1oving part of the elevator-belt, made as above described, may be held free from the upwardly-moving portion thereof by any suitably-arranged guide or guides. As herein shown,a stationary curved guide, G, is employed for this purpose, said guide consisting of a curved plate extending between and attached atits edges to the opposite side pieces of the frame C.

I have herein shown at the lower end of the elevator a casing or shoe, H, surrounding the ICO pulley Da-and provided with a cylindric lower wall, h, curved concentrically with the axis of said pulley and arranged for the passage of the outer edges of the buckets l)2 in close proximity to it in their movement around the pulley, so that said buckets `will scrape or scoop up material delivered to the casing. In the particular' construction of the feedingdevices shown,.in which the material is delivered to the buckets from the lower ends of the screens F F as said buckets are moving up-A wardly from the pulley D3, the casing H serves to catch any material that may fail to enter or fall from the upwardlyfmoving buckets, so that such material will be taken up by suc-A ceeding buckets. The material to be operated upon may, however, in some cases be fed directly to the shoe or casing H with the same general result, as far as the operation of the elevator is concerned, as when the construction shown'is used. A construction in which the material is allowed to fall into ounpon the upwardly-moving buckets is preferred, however, inasmuch as a larger quantity of material may be thus deposited upon buckets of the form shown and described than willusually be scooped up by such buckets'in passing through the shoe.

The screen-chute E consists, as shown, of a bottom, E, made of sheet metal or wood, and* side boards, E3, to which the said bottom and the screens F and-F are attached. Said chute is pivoted at its upper end to arms E5, bolted to the frame C by means of pivotbolts e, and rests at its lower ends upon revolving stepped cams I, mounted upon a transverse shaft, J, and engaging, as shown, projecting parts e' e of the side boards, E3, said cams operating to shake orjar the chute and screens, so as to facilitate the passage of the material through and over said parts.

In the particular construction illustrated the shaft J is provided at one end outside of the frame with a pinion, J, intermeshing with a spur-wheel, A, upon the mortar-'wheelshaft A, .and at its opposite end with a belt-pulley, whereby the said shaft is drivenand the sev eral parts of the machine actuated. In the use of other driving devices, however, the

cams I'inay be mounted upon any suitablylocated shaft; An important advantage lis gained by the use ofa pinion intel-meshing with a spur-wheel upon the mortar-wheel shaft as a means of actuating the mortar-wheel, inasmuch las a steady motion is thereby given-to said wheel, and the latter will be unaffected by the action of the heavy roller B in rolling upon the' undulating surface thereof.

To insure delivery' of the material passing over the screens to the elevato r-buckets, the lower ends of the screens are made to overhang the lower belt-pulley, D3, the rear'wall, e", of the spout E being inclined rearwardly and upwardlyto the rear edges of the screens, as shown, so as to receive and discharge all ofthe material passing through the screens. I have shown in extended upwardly' and flared at their-upper ends, so 'as to dedect inwardly to the elevatorbuckets all of` the material falling from the lower ends of the screens. I have shown in the drawings two screens, F and F, for the purpose of more perfectly separating the finer and y coarser particles of the material being operated upon; but it will Iof course be understood that preferred 0r desired. y

E6, Figs.v 2 and 5, is an inclined deliector placedfin the hopper E2 for the purpose of throwing toward or delivering to the -upper parts of the screens F Ffthe material delivered one or more than one screen may be uscd, as

to the said hopper E2. kThe said detlector is4v of outwardly-extending radial ribs, Z,fherei11 shown as cast on sleeves L, keyed tothe said f i shaft A. In the annular space thus formed between the shaft and the wheel'I place a cushion or filling, M, of rubber or other elastic, or yielding material, such cushion serving to relieve the frame of the machineand coni nected parts from the shocks caused bythe vaction thereonvof the'crushingmoller B or IOO other crushing or stamping device employed. f

The ribs Z are made to extend into the spaces between the ribsa, so that the'wvheell is prevented from turning upon 'the shaft by theA presence of the filling M between the said ribs. The sleevesL are, las shown and preferably constructed, provided withoutwardlyextending annular iianges L', for the purpose of covering and holding thecu'shion or lling M from e'ndwise displacement.

-An important and general advantage of the construction described, wherein the elevatorbelt is sustained with relation to the undulat-v ing periphery of the wheel by the engagement of the cross-bars d with the Wheel-Bauges, the

Itor

buckets with the depressions, and the belt'it,

self with the prominences of the wheel, as."

shown more Iclearly in Fig. 2, is that the part of the belt resting against the mortar-wheelis thereby held in a curve practically circular andconcentric with the axis of the wheel, so that the said belt is causedv to runsmoothly and evenly over the mortar-wheel.

It is to b e understood that Iconsider the p .belt elevator provided with buckets and operating in connection with vthe mortar-,wheel in the manner described to be broadly new; and I do not wish, therefore, to be restricted` toa construction in which the belt is actuated by engagement with the mortarzwheel, as shown, l

or to the particulardetails of lconstructionA shown* in the belt itself or parts connected f therewith'. yA construction inwhich the belt l is driven from the mortar-wheel has, however, important advantages in point of simplicity of construction andV certainty of operation, and a device embracing this feature is therefore made the subject of specic claims herein, as are also certain other details of constru ction herein illustrated in connection with the said elevator.

A cushion interposed between the mortarwheel and the machine-frame to prevent the transmission of shock or jar to the latter is also novel, and is herein claimed without restriction to the particular location and arrangement of the cushion herein shown.

It is to be understood, furthermore, that stamping or crushing devices other than the crushing or stamping roller shown may be employed to operate upon material deposited in the depressions of the mortar-wheel, and my invention, as herein claimed, is not therefore limited to aconstruction embracing said crushing-roller.

I claim as my invention- 1. The combination, with a rotating wheel provided with a series of peripheral depressions and a crushing device acting upon material in the depressions, of an elevating device comprising a' belt provided with buckets, and supporting-pulleys for the belt, constructed to sustain the latter with its upwardly-moving part in contact with the said wheel, substantially as described.

2. The combination, with a revolving wheel provided with a series of peripheral depressions and acrushing-stamp, of an elevating device comprising an endless belt provided with buckets arranged at the same distance apart as the said depressions, and supporting-pulleys forthe belt-,constructed to sustain the latter with its upwardly-moving part in contact with the periphery of the wheel, said belt and the periphery of the wheel being driven at the same speed, whereby the buckets will severally enter the depressions in their upward movement past the wheel, substantially as described. Y

3. The combination, with a revolving wheel provided with a series of peripheral depressions and a crushing-stamp, of an elevating device comprising an endless belt, supportingpulleys for the belt located in position to sustain the belt with its upwardly-moving part in contact with the peripheral surface of' the wheel, and buckets upon the belt provided with ilat bottoms arranged approximately at right angles to the surface ofthe belt, said buckets being constructed to rest in contact with the peripheral surface of the wheel, whereby the material is retained in the buckets while the latter are moving upwardly past the Wheel, substantially as described.

4. The combination, with a revolving wheel provided with a series of peripheral depressions and a crushing stamp, of an elevating device comprising a belt provided with buckets, said belt being engaged with and actuated by the said wheel, substantially as described.

lianges having marginal notches or recesses,

a crushing-stamp, and an elevator comprising an endless belt provided with cross pieces or bars adapted to engage the not-ches or recesses of the iianges, said notches or recesses being provided with inclined outer walls engaging the end surfaces of said cross pieces or bars, substantially as described.

7. The combination, with a revolving wheel Vprovided with a series of peripheral depressions and a crushing-stamp, of an elevating device comprising a belt provided with a series of buckets, supporting-pulleys for the belt,sus taining the latter with its upwardly-moving part in contact with the wheel, and a screen chute constructed to receive material from the said wheel and deliver the uncrushed parti-I cles thereof t0 the buckets upon the upwardly-moving part of the elevator-belt, substantially as described.

8. The combination, with a revolving Wheel provided with a series of peripheral depressions and a crushing-stamp, of a screen-chute receiving'the material from the wheel, said chute being provided with an outwardly and downwardly inclined detlector directing said material against the upper part of the screen therein, substantially as described.

9. The combination, with a revolving wheel provided with a series of peripheral depressions,A a crushing-stamp, and a frame supporting the wheel,ot' a cushion interposed between the wheel and the frame, substantially as and for the purpose set forth.

l0. The combination, with a revolving wheel provided with a series of peripheral depressions, a crushing-stamp, and a frame sustaining the wheel, of a shaft, A', for supporting the wheel, a sleeve, L, attached to the shaft and provided with radial iianges l, the said wheel being provided with a central opening larger than the sleeve and with inwardly-extending tlanges a5, and a cushion inserted in and lling the space between the said sleeve and wheel, substantially as described.

In testimony that I claim the foregoing as my invention I affix my signature in presence of two witnesses.

ALVAN P. GRANGER.

Vitnesses:

W'ILLLLM H. SAVAGE, A. E. WARREN.

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