US720338A - Ore-separator. - Google Patents

Description

2 SHEETS-SHEET 1.

No. 720,338. PATBNTE) FEB.`10, 1903.

` R. B. EMMONS & N. MILLER.

ORE SBPARATOR. APPIoATIoN FILED AUG. 15. 1902.

N0 MODEL.

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RICHARD B. EMMONS, OF GALENA, KANSAS,'AND NEWTON MILLER, OF

' .IOPLIN, MISSOURI.

one-SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 720,338, dated FebruarylO, 1903.

Application filed August 15, 190.2. Serial No. 119,783. (No modelJ v To @ZZ whom, t may concern:

Be it known that we, RICHARD B. EMMONS, residing at Galena, county of Cherokee, State of Kansas, and NEWTON MILLER, residing at Joplin, inthe county of Jasper and State of Missouri, citizens of the United States, have invented certain new and useful Improvements in Ore-Separatore; and we do declare the following to be a full, clear, and eXactdescription of the invention, such as will-enable others skilled .in the art to which it appertains to make and use the same, reference being had to the accompanying d rawings, and to the figures of reference marked thereon, which form a part of this specication.

This invention relates to ore-separators and contemplates an improved apparatus of the wet-process type adapted to effect in a highlyexpeditious manner a complete separation from the gangue of the valuable material re-A` gardless of the degree of ineness of the lat-` ter, the apparatus being especially designed to treat slimes and like masses and to work tailings, which are the result of the treat-l ment of materials by other methods or ma-V lowing detailed description of the construcf tion and operation and to the accompanying drawings, illustrating theiapparatus in its preferred form, it being understood that various changes may be made therein without departing from the spirit of the invention as defined by the claims.

In the drawings, Figure 1 is a vertical central sectional View of an ore-separator embodying the invention. Fig. 2 is a horizontal sectional view on line 2 2 of Fig. 1, certain of the parts being omitted. Fig. 3 is an enlarged detail`Y plan view of a collar carrying the brush-supporting arms. Fig. 4 is a crosssectional view of the collar. Fig. 5 is a detail view of a split ring carried by the collar.

Referring'to the drawings by numerals, 1 denotes a foundation upon which is erected a preferably circular series of uprights 2 2, forming supports for the outer ends of radially-disposed beams 3 3. The beams, which incline upwardly from their forward ends, form the support for a sloping circular table 4extend radial arms 9 9.

4, andthe inner ends of the beams are joined to a central spider 5, having an opening in which is secured a tubular casing 6, forming the guide for a vertically-movable casing 7, having at its lower end a spider 8, from which Fixed to the outer Yends of the arms 9 is a casing-wall lO, circular in form and having the proper diameter to secure close contact between it and the outer edge of the table 4, a suitable packing 11 being interposed for a purpose presently to be'stated.

12`is'a shaft secured at its lower end centrally to the spider 8 and extending vertically through and considerably beyond the telescoping casings 6 and 7. Supported on the top of the casing 6 is a rotatable cylinder 13, having a centraltubular stem 14, loosely receiving the vshaft 12 and carrying at its upper end a bevel-gear 15, which meshes with a bevel-gear '16 on a power-shaft 17. The cylinder 13 is continuously rotated about the shaft 12 through power applied at the shaft 17, and between its lower end and the `casing 6 is a step-bearing 18. The material with Water is supplied to the cylinder through a feed-spout 19 and falls onto the cylinder-bottom, in which are provided outlets 2O 20. The material is fed in a finely-divided state, and to further reduce and agitate the particles and keep the outlets open there are provided balls 21 21, which revolve over the correspondinglyformed cylinder-bottom, the positions of the balls during the rotation of the cylinder being maintained by stationary arms 22 22, eX- tending into the cylinder and mounted in the manner presently to be described. Inasmuch as the arms extend nearly to the bottom of the cylinder they also serve as stirrers for the material. Y The material leaving the cylinder by the outlets falls onto a conical circular plate 23, carried by and consequently rotated with the cylinder. From the plate 23 the material. falls onto a stationary circular dish 24, the outer edge 25 of which is up- IOO ner edge of the table closely and affording the support for the dish, to which it is secured inside of the line of openings 26.

Surrounding the cylinder is a collar 29, provided with vertical grooves 30, engaging splines 31 on the cylinder, whereby the collar rotates with and is vertically adjustable on the cylinder. In an annular recessin the collar is loosely fitted a split collar 32, from which are erected rods 33 33. These rods form the supports for the arms 22 22, and their upper ends are secured to a cross-head 34, which is keyed to the shaft 12. The crosshead, rods, arms 22, and split collar are incapable of rotation, and to minimize friction between the split collar and collar 29 a ballbearing 35 is provided. Fixed to and extending radially from the collar 29 are arms 36 36, to depending portions of which are secured brushes 37 37, made,preferably,of woven fabric. The brushes rotate with the cylinder 13 and normally contact with the table 4, and to enable worn brushes to be readily replaced by new brushes the arms are made of detachable telescoping sections.

The casing-wall 10 and brushes are adjusted vertically as the material accumulates on the table 4. The shaft 12 is screw-threaded at its upper end and engages a threaded opening in a worm gear-wheel 38, mounted to revolve on an upper supporting-beam 3S). The worm gear-Wheel is revolved by a worm 40, keyed to a power-shaft 41.

In operation the material falling from the dish 24 onto the table is agitated by the rotating brushes 37, and the separation of the valuable particles is accomplished at the higher side of the table, the gangue being carried over the outer edge of the table and is conveyed away bya trough 42. Then the feed of material has progressed to a certain extent, the shaft 41 is set in motion and the Vertical shaft 12 is, through the described gearing, raised, carrying with it the brushes and the wall 10. The elevation of the wall (indicated by dotted lines) forms an annular receptacle for the material, the valuable particles being retained therein and the gangue washing away over the top of the wall. The elevation of the wall is very gradual and its movement is timed according to the feed of the material and the nature and consistency of the mass. The packing 11 between the wall and table edge prevents leakage at this point and renders the annular receptacle when formed practically water-tight. The wa ll being guided by the telescoping casings 6 7 has a uniform and regular movement, thus insuring a uniform height throughoutat all times. The brushes following the movement of the wall are immersed in the material to the proper extent regardless ofthe depth of material, thereby securing uniformity in treatment. After a sui'licientamount of material has been treated clean water is run through the apparatus to convey the separated particles to a suitable receptacle, and this may be accomplished by means of the trough 42. The wall 10 and brushes are gradually lowered as the washing takes place, this being accomplished by means of a hand-operated gear-wheel 43, which meshes with the wheel 38, the Worm 40 being unclutched during the operation.

We claim as our invention- 1. In an ore-separator, the combination of a circular table, a revoluble cylinder centrally abovethe table receiving the material and provided with an annular bottom having discharge-outlets, Walls on the cylinder-bottom, fixed arms extending into the cylinder and engaging the balls to prevent travel thereof, and means to direct the material from the outlets onto the table.

2. In an ore-separator,the combination of a circular table, a vertically-movable shaft central of the table, a vertically-movable circular wall at the outer table edge connected with the shaft, a guide for the movement of the wall, a feed-cylinder rotatable about the shaft, and arranged to discharge the material onto the table, a collar rotatable with and vertically movable on the cylinder and brushes at the table connected with the said collar.

3. In an ore-separator, the combination of a circular table, a vertically-movable shaftcentral of the table said shaft having a threaded portion operatively connected with gearing for raising and for lowering the shaft, a vertically-movable circular wall at the outer table edge connected with the shaft, a rotatable feed-cylinder having a central tubular portion loosely receiving the shaft and provided with outlets in its bottom, means for directing the material onto the table, balls in the bottom of the cylinder, a collar rotatable with and vertically movable on the cylinder, brushes at the table carried by the collar, and a stationary collar around the aforesaid collar and carrying arms engaging the balls to prevent travel thereof.

In testimony whereof we have signed our names to this specification in the presence of the subscribing witnesses.

RICHARD B. EIWIMONS. NEWTON MILLER.

Witnesses to signature of Richard B. Emmons:

W. T. NORTON, I. L. J. BRIRINs. lVitnesses to signature of Newton Miller:

HOWARD C. MURPHY, EDWARD L. SHEPHERD.

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