US1216118A - Ore-separator. - Google Patents

Description

G. HERING.

ORE SEPARATOR.

APPLICATION Mmmm/6,1916'.

and in some particulars GEORGE Hamme, O'F LARCHMONT, New YORK.

ORE-SEPARATOR.

Speeication of Letters Patent.

ira-tenten ren. is, teit.

Application filed July 6, 1916. Serial No. 107,731.

TofaZZ wwm t may concern:

Be it known that I, GEORGE HERING, a citizen of the United States, and a resident of Larchmont, in the county of Westchester and State of New York, have invented a new and Improved Ore-Separator, of which the following is a full, scription. f

This invention relates to vore separators and has particular reference to means for recovering or saving the minutest particles of gold and other precious metals which Ccommonly accompany auriferous sandsor ust.

Among the objects of the invention, therefore, i's to provide a simple and elicient machine including a rotary device upon which the ores are received and separated as to size, weight or quality, the action being dependent upon the effect of gravity, adhesion, upon centrifugal force and magnetism.

Another object of the invention is to provide a means requiring a minimum amount of power for effecting the separation conr templated.

p away, of thevdelivery With the 'foregoing and other objects in view the invention consists in the arrangement and combination of parts hereinafter described and claimed, and while the invention is not restricted to the exact details of construction disclosed or suggested herein, still for the purpose of illustrating a practical embodiment thereof reference is had to the accompanying drawings, in which like reference characters designate the same parts in the several views, and in which- Figure 1 is a vertical longitudinal section of a preferred embodiment of the invention;

ig. 2 is a vertical transverse section substantially on the broken line 2`2 of Fig. '1;

Fig. 3 is a front elevation, partly broken mechanism for magnetlc ores; and l Fig. 4 is a vertical transverse sectional detail on the line 1*4 of Fig. 2.

eferring now more particularly to the drawings, I show a frame including front and rear standards 10 and 11 suitably supported upon a base 12. These parts may be constructedin any suitable manner toprovide ample strength and stability for the operating parts of the Supported thereon or journaled therein. A

power shaft 13 is journaled'in a horizontal clear, and exact demachine which arev position in said standards and carries a driv- The principal element of the separatorie -what I term a drum 15, which includes a series of coaxial frusto-conical elements, but which for convenience of description, I will hereinafter designate as cones, and shown in this instance as being live in number, num-y bered respectively 16 to 20. Each cone is connected by rigid brackets 21 to the next adjacent cone whereby the several cones are held in fixed relation to one another throughout the drum. A series of spiderarms 22 extend inwardly to a huh 23 from the brackets connecting the cones 18 and 19. Said hub is rigidly secured to the upper end of a hollow shaft 24 having a long bearing 25 in the upper end of the standard 11. A spider 26 also is formed at the central p0rtion ofthe cone 20 through which it is rigidly connected to the middle'portion of the hollow shaft 24. As illustrated, the axis of the shaft 24 is inclined at an angle of about thirty-eight degrees to the horizontal, but as to this angle I do not wish to be unnecessarily limited since it and other details are subject to a wide range of variation depending very largely, however, upon the inclination of the geometric elements of the several cones. .l l

At the upper end of the standard 10 is secured a hopper 27 into which the material to be separated is dumped in a perfectly dry state. The bottom 28 of the hopper has an outlet leading into the upper end of a rotary delivery spout 29 journaled in a bearing 30'on the standard and also in a bracket 31 secured to the rear face of the standard 10. The spout 29 is rotated at a comparatively low speed from the power shaft 13 through pairs of miter gears 32 and 33, typifying any suitable positive operative connections. The lower end of the spout 29, through the combined action of gravitation and rotation of the spout, delivers the material in moderate quantities upon the inner surface 'of the first cone 16 not yfar below the inner edge thereof and below the axis of the rum.

All of the geometric elements of all of the cones are straight, but not all of them are arranged in the different cones at the same inclination. For instance, the cone 16 has the greatest altitude or, in other words, has

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the sharpest pitch. The next two cones 17 and 18 are of the same diameter as the first, but have progressively less pitch or altitude. The last two cones 19 and 20 are progressively smaller in diameter than the first three cones, and are indicated in this instance as having an Inclination substantially the same I rotated as indicated inthe drawings at a low speed around the axls of the supporting shaft 24, and the material to be separated being delivered upon the upper surface of the lower half ofthe first cone 16, the largest and the coarsest particles of the material will be delivered immediately by gravitation downwardly into a receiver 34 having a j mouth projecting beneath the periphery of the cone 1 6 through approximately onequarter of its rotation. All the balance of thematerial will be carried upwardly and inwardly by the inner surfaceof the cone 16 4due' largely to adhesion between the same "and the cone. As shown best in Fig. 1, it will be noted that that'element of the cone 16 at the point where the material is received from the spout 29 isinclined downwardly and outwardly toward the receiver 34, but as such element is carried around vwith the drum it approaches a horizontal position and then approaches and even-v as indicated at the passes a vertical position, top of Fig. 1, and thereafter it returns again to its outwardly ceiving point. Vith respect to the mate-v rial just referred to, all'p'articles will be delivered from the inner surface of the cone 16 during the circuit thereof from the' re', ceiving point to the top of the drum. After the coarsest particles are delivered Adirectlyto the receiver y34, the next finernportion of the mixture will vbe delivered Ainwardly over the inner edge of the cone"16, eitherdi" rectly upon the' inner edge of the next cone 17 or into a spout 35, shown in Fig'. 2, having an elongated mouth lying along the second quarter of the movement of the cone. 16. The lower end of the spout delivers the material received therein upon the lower portion of the cone 17, as shown in Fig. 1, where the same will be treated in a manner corresponding to the treatment of the first material upon the first cone, the coarser par'- ticles thereof passing directly by gravity into a receiver 36. and the next grade being carried up and delivered either upon the cone 18 or into the second inwardly located inclined position at the `reproj ecting smaller cone 19. p F rom this cone,

the coarser particles received are delivered intoareceiver 39 and the other portions are delivered in vturn upon the innermost and smallest cone 20 for av further separation, the larger particles going into a receiver 40, while the finest and richest of the gold dust is delivered finally from the cone 20 through the spider 26 into a receiver 41. In this connection it will be observed that while the inclination of corresponding elements'of adjacent innermost cones is thesame, the force of adhesion incident to the innermost cone is neutralized to a less extent by'centrifugal force, and therefore complete delivery of all of the material will be effected from the last mentioned cone 20 at its top..

In treating certain species of ores I find it advantageous to form upon the inner surface of the cone 16, a series of offsets 42, shown in detail in Fig. 4. The advancing sides of each of these offsets is `rounded whereby portions of the material 'may glide thereover and strike against a baffle plate 43 secured'to, but'spaced upwardly at its lower edge from the surface-of the conesjust be low or in the rear of the offset 42. The impact of the coarser particles against the baffleplate 43 has a tendency also to agitate the material ration. l v

In thetreatmentof ironres rich in'gold or in which particles of magnetic oresare laden more or less richly with 'the finest character of gold dust commonlyotherwise lost,

I find it commercially of great advantage to secure 'a series of loadstones or magnets to the 'buter-surface of lthe cone 16. `These magnets are indicated at 44 and 'arearrang'ed as closely together around the outer surface of the `fconeas maybe'desired. Each of the magnets is heldinj a -pocket andyslightly spaced from the outer surfacekofthe'cone 16 j whereby-a plate of magnetic sheet metal 45 held in a stationary position by a bracket' 46,` or its equivalent, at the top of the drum will have the effect of neutralizing'the magnetism, and thereby any magnetic ,particles of auriferous ore that will be received upon the inner surface of the cone 16 and carried by the magnets around tofthetop thereof, will be delivered by gravity directly into a receiver 47, and thence conveyed rearwardly and downwardly through the inclined hollow shaft 24 into a receiver 48. It will be understood that the drum is rotated from the power shaft 13 through bev-tand facilitate the further sepa eled gears 49. The attraction of the aurifcrous magnetic ore to the locality of the magnets is augmented by the action of the olisets and baiile plates 42 and 43.

'I claim:

l. The herein described ore separator comprising in combination a drum including a series of coaxial cogne members, means to connect the several fone members each to each and maintain them in a definite relation to one another, a central rotating supporting shaft ior the drum inclined at an acute angle to the horizontal whereby the portions of the cone members at different points are diilerently inclined to the vertical, means to deliver material to be Separated upon one of the cone members at its lower portion, and means to rotate the drum so as-to cause the coarser particles of the material received upon each cone member to be separated and delivered outwardly, while the finer particles are delivered inwardly upon the next succeeding cone member for further subdivisions.

2. In an ore separator, the combination of a main frame, power devices journaled in said-frame, a shaft journaled in the frame at an acute angle to the horizontal, means to rotate the inclined shaft from the power devices, and a separating drum secured to and rotated at low speed from said inclined shaft, said drum including a plurality of frusto-conical members of the same diameter but having sides at different inclinations.

3. The herein described drum for an ore a separator comprising a series of frusto-conical members arranged coaxially, certain of said members having bases of equal diameter and central openings ofequalv diameter but having different inclinations.

.4. -The herein described drum for ore separators comprising a series of hollow truncated cones arranged coaXially, a central hollow shaft whose axis coincides with the axis of the drum, 'cone members, power means acting through the hollow shaft to rotate the drum at a low speed, means to deliver material to be separated upon one of the cone members whence the largest particles are delivered outwardly and the remaining particles delivered inwardly toward the neXt cone members for further subdivisions, a series of receivers to receive the material from the lower portions of the several cone members, a receiver at the upper portion of the drum to receive material from the top of the drum and deliver the same downwardly through the hollow shaft, and means carried by the iirst cone member to cause certain portions of the material to be carried up to be delivered into the last mentioned receiver.

- GEORGE HERIN G.

of this patent may be obtained for ve cents each, by addressing the Gommissioner of Patents,

Washington, D. G.

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