US849385A - Ore-separator. - Google Patents

Description

PATENTED APR. 9, 1907.

J. W. GIBSUN. ORE SEPARATOB..

APPLIOATION FILED APR.2,1906.

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A Troie/VE ys Nol 849,385. Y l PATENTED APR. 9, 1907. J. W. GIBSON.

ORE SBPARATOR.

APPLIOATION FILED APR.2,1906.

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l l a' A TTORNEYS UNITED STATES PATENT OFFIOE.

ORE-SEPARATR.

Specification of Letters Patent.

Patente@ April 9, 1907.

Application filed April 2. 190B. Serial No. 309,396.

To a/ZZ whom t may concern.

Be it known that I, JOHN WILLIAM GIB- SON, a citizen of the United States, residin at Milwaukee, in the county of Milwaukee an State of Wisconsin, have invented a new and useful Ore-Separator, of which the following is a specification.

This invention relates to magnetic-ore separators, and has for'itsprincipal object to rovide a simple and eifective mechanism for rapidly and thoroughly separating magnetic ore from gangue.

A further object of the invention is to provide a separating device in which electroma nets are associated with a shaking-table of iamagnetic material to the end that the magnetic ore may be placed under the control of the electromagnets, while the gangue is left free to move to a discharge point or points.

A still further object of the invention is to provide a mechanism of this type in which a table of diamagnetic material is mounted for reciprocatory movement in a plane above and within the field of force of a pluralit of horseshoe-magnets and in which said tab e is provided witIi discharge-openings for the gan ue.

ith these and other objects in view, as Willmore fully hereinafter appear, the invention consists in certain novel features of construction and arrangement of parts, hereinafter fully described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the form, proportions, size, and minor details of the structure ma be made without de arting from the spirit or sacrificing any of) the advanta es of the invention.

n the accompanying drawings, Figure 1 is a plan view of an ore-separator constructed n accordance with the invention. Fig` 2 is a side elevation of the same. Fig. 3 is a transverse sectional view of the table, drawn to an enlarged scale. Fig` 4 is a detail perspective view of one of the electromagnets, showing one of the cores and one of the extension pole-pieces.

Similar numerals of reference are employed to indicate corresponding parts throughout the several figures of the drawings.

The working parts of the machine are supported on a suitable frame, and said frame further carries the core members 15 of the electromagnets, there being four series of electroma nets shown in the present instance,

althou h t -s number may be increased or decrease ,if desired.

The electromagnets are provided with polepieces 16, which alternate as to polarity, those of a single series bein N S, N S, &c., and the win ings between the core-pieces being arranged to effect or produce the desired polarity. The ends of the cores are projected upward to a short distance below the shaking-table 18, and said pole-pieces are provided with extensionplates 19, `one end of each plate being cut awa or recessed, as indicated at 20.

T e shaking-table 18, which may be operated by any well-knownmeans capable of giving a longitudinal reciprocatory motion, 1s preferably formed of thin sheet metal of some diamagnetic materialw-such, for instance, as brass (nickel may be employed)- and said table is arranged to extend over all of the electroma ets.

The table is vi rated in the direction of its length and operates in the well-known manner for effecting the travel of any material placed on such table, the material being fed to that end of the table nearest the shaft and the magnetic ore being discharged at the opposite end.

The table is provided with a large number of openin s 30, of which there is one in alinement wit each of the pole-pieces 19, and these openings serve to permit the gravitational discharge of the gangue while the magnetic ore is retained on the table.

The electromagnets of each series are disposed in stag ered relation to' those of the next series a'n the openings are correspondingly arranged--that is to say, a straight line drawn arallel with the length of the'table across t e plane of the first opening and one of the electromagnets of the first series will pass midway between two of the o enings and two of the electromagnets of t e next series and will cross the plane of an opening and an electromagnet of the third series.

If the electromagnets are energized and ore is placed on the table, the vibrations of the latter will carry the ore over the first series of magnets-fthat is to say, the series of magnets nearest the free end. At this point the magnetic iron will tend to move to a position between the poles of the horseshoemagnets and to accumulate' in small rows arranged 1n loo IIC

between the poles, while the gangue or earthy material not being magnetic, will tend to travel along toward the discharge end of the table and will move over thc poles of the electroma ets without being affected thereby and wil fall through the .openings 30 in the table. As the material travels along toward the next series of electromagnets and the rows of magnetic iron,' more or less mechanically mixed with gan ue, are now directed in the pathp'f the poe-pieces of the electromagnets; but as the material moves over this second series of magnets the magnetic iron will move to the right -or to the left to a position between the poles of the horseshoe-magnets of the second series, leavingthe gangue to travel straight ahead and fall through the openings at the ends of the second series of magnets.

essary, additional series of magnets, the

`gangue traveling in a practically straightv line from end to end of the table, while the magnetic iron moves in a zigzag path between the series of magnets. The bodily movement of the particles of magnetic iron will tend, of course, to travel some of the gangue as the magnetic iron is moved laterally of the table; but after a number of lateral movements it is found that the gangue is entirely removed, leaving only the magnetic ore on the table.

The operatinfI means disclosed consists of a shaft 31, which may be driven by any suitable power (not indicated) carrying an eccentric 32, embraced by an eccentric-strap 33, to which is attached an eccentric-rod 34, pivotally connected with the table.

v I claime 1. In an ore-separator, a movable table of diamagnetic material and provided with gangue-discharging openings, a plurality of electromagnets disposed under said table and means for passing magnetic ore over the table.

2. In an ore-separator, a mvable table of diamagnetic material and provided with gangue discharging openings, means for shaking said table and a plurality of electromagnets disposed under said table.

3. In an ore-separator, a table of diamagnetic material provided with staggered openings, electromagnets arranged in staggered relation under the table and means for passing magnetic ore over the table.

4. In'an ore-separator, a table of diamagnetic material provided with staggered openings, means for. shaking said table and electromagnets arranged in staggered relation under the table.

5. In an ore-separator, a movable table, a plurality of series of horseshoe-magnets arranged underI the table, the magnets of each series being staggered with relation to those of an 'adjacent series, .the table being pro- This operation is repeated at the third and fourth, and, if neojacentyseries, the table being provided with openings in alinement with the pole-pieces of the electromagnets.

7. In an ore-separator, the combination with a shaking-table, of a plurality of horseshoe-magnets arranged in staggered order under the table and having extension polepieces, the table being provided with openings in alinement with such pole-pieces. and means for passing magnetic ore 'over the table.

8. In an ore-separator, the combination with a shaking-table, of means for operating the same, a plurality of horseshoe-magnets arranged in staggered order under the table and having extension pole-pieces, the table being provided with openings in alinement with such pole-pieces.

9. In an ore-separator, a longitudinallymovable table, horseshoe-magnets arranged in series under the table, the magnets of each series being disposed in staggered relation with respect to those of the adjacent series, said magnets having extension pole-pieces, and the table being provided with ganguedischarging openings in alinement with the pole-pieces and means for passing magnetic ore over the table.

10. In an ore-separator, a longitudinallymovable table, means for shaking said table, horseshoe-magnets arranged in series under the table, the magnets of each series being disposed in staggered relation with respect to those of the adjacent series, said magnets having extension pole-pieces, and the table being provided with gangue-discharging openings inalinement with the pole-pieces.

11. In an ore-separator, the combination with a reciprocatory table of diamagnetic IOO IIB

material, a plurality of horseshoe-magnets v arranged under the table and having their pole-pieces of different polarity alternating in the width of the table, extension pole-pieces for said electromagnets, the table having gangue-discharging openings in alinement with such pole-pieces, and means for passing magnetic ore over the table.

12. In an ore-separator, the combination with a reciprocatory table of diamagnetic material, of means for operating the same, a plurality of horseshoe-magnets arranged under the table, and having their pole-pieces of dierent polarity alternating in the width of the table, and extension ole-pieces for said electromagnets, the table lpiaving gangue-discharging openings in alinement with such pole-pieces.

13. In a magnetic-ore separator, a reciprocatory table having staggered dischargeopenings, electromagnetic means Jfor moving the magnetic ore in a zigzag path across the table and directing the same between the openings, and means for passing magnetic ore over the table.

14. In a ma netic-ore separator, a reciprocatory table ghaving staggered dischargeo enings, means for operating the same and e ectromagnetic means for moving the magnetic ore in a zigzag path across the table and directing the same between the openings.

15. In a magnetic-ore separator, a shakingtable, means for reciprocating the table7 a i5' the table having gangue-discharging openzo ings in alinement with the pole-pieces.

` In testimony that I claim the foregoing as m'y own I have hereto'affixed my signature in the presence of two Witnesses.

JOHN WILLIAM GIBSON. Witnesses:

C. D. BLAcKWooD, GEO. G. MCLAREN.

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