US1244611A - Concentrator. - Google Patents

Description

W. A. H.UELSDONK. c'owcemnmon.

APPLICATIONTILED SEPT. I8. 1916.

Patented Oct. 30, 1917.

2 SHEETS-SHEET l.

W. A. HUELSDONK.

CONCENTRATOR.

APPLICATION FILED SEPT. 18, 1916.

1,2445 1 1 Patented Oct. 30, 1917.

2 SHEETS-SHEET 2.'

fZWWW rrEn sTATE-srATENT orrron.

WILLIAM A; Hnnisnonir, oF MonEsro, onrironma;

To aZZ whom it may concern:-

Be it known that 1, WILLIAM A. Hunts- DONK, a citizen of-the United States, resid- .ing atModesto,inthe county ofStanislaus,

State of California, have invented' certain new and useful Improvementsfin Concentrators; and I do declare the-following to be a full, clear, and exact description'of the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a partof this application.

1 This invention relates to improvements in concentrating apparatus especially adapted for use in connection with placer mining, the object of the "invention being to. produce in combination with a concentrating table of specific construction. a feed trough or hopper therefor which will properly'feed and distribute the. sand and gravel upon the Itable'to produce the most efficient results.

A further object of the invention is to produce certain cooperating mechanism whereby the concentrator will be continuously vibrated so as to settle the precious metals and allow the lighter nonprecious material to be readily carried off. I aim also to produce a concentrator whichcan be operated with a minimum amount of water andone in. which only the finer sand and gravel containing the precious metals will be ultimately passed to (the distributor.

A further object of the invention is to producea simple and inexpensive device and yet one which will be exceedingly .eifective for the purposes for which it is designed.

These objects I accomplish by" means of such structure and relative arrangement of parts as. will fully appear by a perusal of the following specification and claims. 7

1n the, drawings similar characters of reference indicate corresponding parts in the several views. 7

Figural is a side elevation of the com- A plete device.

Fig. 2 is a top plan view of the concentrating table.

Fig. 3 is a sectional view on a line X.-X of Fig. l.

Fig. 4 is a sectional view on a line YY of Fig. 2.

. Fig. 5' is a view of the dischargingi'end of the concentrating table.

Referring now more particularly to the characters l of reference on the drawings, the numeral 1 designates the supporting:

concnivrneroa.

Specification of Letters Patent. ,Pa ten ted Get, 30, Application filed September 18, I916. -SeriaLN0. 1205620; I I

frame: At oneend thereof is aspindle2 ..inou-nted on which is a supporting frame 3 carrying the separating screen 4. The vibrating rod 5 is connected withthe frame 3. at one end and withfthe lever 6 atthe other-end. The other endof the lever 6 is provided with a crank arm 7 movablein "aguide '8 and being provided with roller 9 arranged to;be' engaged by a camlO. The cam 10 is onthe shaftll which is arranged .to be rotated by means'of a. pulley'12 coninected by a=beltfl3 with a pulley l4-operi -ated by a suitablemotor l5. A spring 16 normally holds the frame 3 inthat position. which will cause the vibrating rodr5 frame 3 and consequently the screen 4wi'1l be constantly vibrated so as to shake the .material. therein to separate the fine material to'holdthe lever 6 so that the roller 9 will .be constantly in the path of the cam 10. Thus with the rotation ofthecam' 10, the

from the coarse as is common in this class I of screen. While the material is being passed through the screen 4, it is continually ,wetted from the spray pipe 17 fed from the pump .18 connected 'with any suitable source of supply and operated by and in connection with the powermotor 15 as is clearly shown in Fig. '1. Thefiner sand, gravel and precious metals, together with the water passing through the screen 4, are

delivered into the distributer which is dis- 4. This distributing trough :23 is provided with a plurality of openings 24, along its lower edge, those openings nearest the screen-4 being somewhat higher than thebalance so that thelighter material will be first discharged on to the concentrating table 20. M

The openings 24 are regulated by slidable plates. 25 was to control the amount of flow of the material therethrough. As the material flows through the holes 24, it first strikes deflecting plates 26 whichdischarge upon the distributing-plate which distributing plate in turnidischarges upon the distributing plates 27 which, as noted, are spaced slightly from the plate 22 and curve downwardly to discharge against the center iii of the concentrating table 20 on each side of the central beading 19.

The concentrating table 20 is especially constructed in the following manner,

namely: At its receiving end the lowesti'i points of its surface 'are'adjacent'the bead ing 19 and its surface then slopes upwardlyon both sides of the said beading to the outer edges where there are small retaining rims 28. at a where the lowest points of the surface deflect outwardly toward the discharging end of the table 20 to points as at b, the sides thereof sloping upwardly on both sides from thelines 0 so as to form a sub- .stantial gully or ditch terminating into a discharging chute 29 at the end of the table 20 for carrying off the high grade precious metals and into side chutes 30 for carrying off the lower grades. The concentrating tableQO is kept in a constant vibratorymotion by means of the cam 10 directing against a roller 31 on the thrust rod 32 movable through a guide 33 and connected by a rod 34-. with the under side of the table 20 near one end thereof as at 35. The said table is mounted onball and socket supports 36 to allow of this-vibratory motion and the roller is held in constant engagement with the cam 10 by means of springs 37.

From the foregoing description it will readily appear that I have produced a distributer and concentrator in which, after the coarse rock is screened from the light sand and gravel, the latter will be carried by the water spray directly into the distributor, which distributer, by reason of its construction, will distribute the material equally all along the concentrating table, the lighter material passing out first toward the upper end of the table. Upon being distributed upon the table, the precious material such as gold, platinum or the like, being heavy will tend tos'ettle into the lower portions cl adjacent the beading 19 as described, while the lighter material will flow up the inclined surface and wash over the edges of thetable, the retaining rims 28 preventing any overflow of the precious metals. The vibration of the, table combining with the flow of the water will cause the precious metals to travel along the lengthof the table until the point a is reached, where they will be diverged along the line 0 and thence off into the chute 29. The better grade of material being the heavier will naturally follow the ditch, 0 and pass through onto and out through the chute 29 while the lighter or less valuable materials will pass through the outlet slots 30 and thence'onto the chutes 30 and be carried olf .through said chutes.

This condition'continues to points as By means of my improved concentrating table acting in the manner above described, the, action thereof will be very similar to that of the commonly used washing pan which effectually washes off the lighter nonvaluable material and washes the valuable materials onto the crevices where they can be held and controlled and eventually handled as founddesirable. T

From the foregoing description it will be readily seen that I have produced such .a device as substantially fulfils the objects ofthe invention as set forth herein. 7

While this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detail maybe resorted to as do not form a departurefrom the spirit of the invention, as defined by the appended claims. Having thus described my invention what I claim as new anduseful and desire to secure by Letters Patent is: l. The combination with a concentrating table, of a distributing trough arranged along the length of the tableand having a plurality of openings, a distributing plate disposed immediately between thedistributer'and the concentrating table, deflecting plates between .the'openings and said distributing plate for directing the material from the distributer upon said distributing plate, and curved distributing plates spaced on each side of the first named distributing plate to discharge on said table.

2. A concentrating table having a beading, the side of the table sloping upwardly :from the beading to the opposite edge of the table for a portion .of the length of. the 1 table so asto form a gully along the bead ing, such gully then deflecting obliquely from the heading to discharge atthe end of the table near the outer edge thereof, the sides of the latter portion of the gully sloplng upwardlytorthe beading and opposite edge of 'the table respectively.

3...A concentrating table having a bead mg, the side of the table sloping upwardly from the heading to the opposite edge of the 1? table for'aportion of the length of the tableso as to form a gully along the beading, such gully then deflecting obliquely from the beading to discharge at the end of the table near the outer edge thereof, the

sides of the latter portion of the gully sloping. upwardly to the beading and opposite edge of the table respectively, thetable being provided with an outlet slot opening through the edge of the table into the one side of the obliquely extending portion of the gully. V

- In testimony whereof I aflix my signature.

WILLIAM A. HUELSDO-NK.

Copiesfoi this patent may be obtained for five cents each, by addres sing'the.Coinmissioner.offzitents, i

Washington,'D.0.f i

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