US713814A

US713814A - Concentrator.

Info

Publication number: US713814A
Application number: US8840002D
Authority: US
Inventors: August Ten Winkel
Original assignee: DWIGHT BISSELL; FLORENCE M COTTON; STANLEY H BISSELL
Current assignee: DWIGHT BISSELL; FLORENCE M COTTON; STANLEY H BISSELL
Priority date: 1902-01-04
Filing date: 1902-01-04
Publication date: 1902-11-18
Anticipated expiration: 1919-11-18

Description

, Patented Nov. [8, I902. A. TEN WINKEL.

CONCENTRATOR.

(Application filed Jan1 4, 1802.)

2 Sheets-Sheet I.

(No Model.)

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' Patented Nov. l8, I902. A. TEN WINKEL.

CONGENTRATOR.

(Application filed Jan. 4, 1902.)

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ATTENT union.

AUGUST TEN WINKEL, OF DENVER, COLORADO, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, OF ONE-HALF TO STANLEY I-I. BISSELL, OF DENVER, COLORADO. DWIGHT BISSELL, OF REDWOOD FALLS, MINNESOTA, AND FLORENCE M. COTTON, OF MINNEAPOLIS, MINNESOTA.

CONCENTRATOR.

SPECIFICATION formingpart of Letters Patent No. 713,814, dated November 18, 1902.

Application filed January 4,1902. Serial No- BBAOOt- (No model.)

To ctZZ whom it may concern:

Be it known that 1, AUGUST TEN WINKEL, a citizen of the United States of America, residing at Denver, in the county of Arapahoe and State of Colorado, have invented certain new and useful Improvements in Concentrators; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in IQ the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to characters of reference marked thereon, which form a part of this specification.

My invention relates to improvements in 0reconcentrating apparatus; and it consists of the features,arrangements, and combinations hereinafter described and claimed,all of which will be fully understood by reference to the accompanying drawings, in which is illustrated an embodiment thereof.

In the drawings, Figure 1 is a top or plan view of a concentrating-table equipped with my improvements. Fig. 2 is a section taken on the line a: a, Fig. 1, the parts being enlarged. Fig. 3 is a side elevation of the ap paratus. Fig. 4 is an end elevation of the same, shown on a larger scale. In this view the end flange of the table and screen, as well as the end frame-bar of the screen, is removed to better disclose the various parts of the apparatus. Fig. 5 is a section taken on the line y 3 Fig. 1, shown on a larger scale. Fig. 6 is a section taken on the line 10 w, Fig. 1, still 5 further enlarged. Fig. 7 is a plan view illustrating the construction of the screen-frame, whereby it may be adjusted to regulate the tension of the screen fabric.

The same reference characters indicate the same parts in all the views.

Let the numeral 5designateasuitable relatively stationary foundation or support. Upon this support is mounted a table 6, which is transversely inclined and arranged to vi- 5 brate or reciprocate longitudinally through the instrumentality of a suitable operating mechanism, conventionally shown in the drawings and designated by the numeral 7.

This longitudinal vibration is of such character as to give the material under treatment on the table a tendency to travel fromthe head toward the tail or foot of the table, being from the right toward the left, referring to Figs. 1 and 3. This table is provided with longitudinal rifiles extending thereon from the head toward the foot, along which the concentrates travel, the latter being discharged at the tail of the table, while the gangue is carried by wash-water discharged upon the upper edge of the table transversely downwardly and discharged over the lower edge of the table into a waste-launder 8.

Covering a suitable area embracing the upper right-hand corner of the table, referring to Fig. 1, is a water-receptacle 9, mounted on the table and arranged to move therewith. The area of this water-receptacle is approximately indicated by the rectangular space outlined at the upper right-hand corner of Fig. 1. Located withinthis water-receptacle is a perforated plate 10, While at the top of the receptacle is a plate 12, having projections 12, formed by pressing the metal upwardly from below. The tops of these projections are provided with openings forming nozzles adapted to discharge water upwardly as the latter is forced into the water-receptacle from below. Mounted above the water-receptacle and arranged to move independently of said receptacle and the table is a frame 13, to which is attached in any suitable manner a screen 14 of suitable mesh. As shown in the drawings, the edge of the screen is inserted in a slot formed in the outer edge of the frame and fastened by wedges, as indicated at 14. The plane of this screen is sufficiently above the extremities of the nozzles 12 to allow the screen perfect freedom of movement without engaging said nozzles or projections. A reciprocating movement is imparted to this screen from an eccentric 15. The movement of the screen is independent of the movement of the table. The screen and table may, however, if desired, be arranged to move in unison by passing a bolt 16 (see Fig. 6) through 5 the frame of the screen into the table. In

this event the screen is disconnected from its eccentric and moves in unison with the table.

material to be treated is fed in the form of pulp from the box 18 to the screen 14 the water is forced up from the receptacle below through the aforesaid projections or nozzles 12 and through the screen 14. When this water meets the pulp, it thins the latter and causes the finer mineral particles to pass through the screen to the plate 12 below. These finer mineral particles travel longitudinally on the plate 12 or parallel with the riflles 17 and are discharged upon the body of the table at the left-hand extremity of the said plate, thus separating the finer mineral values from the mass of gangue, whose tendency is to move transversely downwardly over the lower edge of the table into the tailings-trough or waste-launder 8. The coarser mineral values pass over thescreen with the gangue to the body of the table, where the separation is effected by the combined action of the Water, the vibratory motion of the table, and the influence of the longitudinal riffles 20, with which the body of the table is provided. These riffles, as shown in the drawings, have an undulating upper edge or face, whose tendency is to retard the rearward movement or travel of the mineral particles or concentrates, whereby a better separation from the gangue is effected. The concentrates following the line of the riffies 20 are finally discharged into a launder 21 at the tail of the table.

The head extremity of the upper side of the screen 13 is provided with a flange or upwardly-projecting rim 13*, which retains the material in place thereon.

The screen-frame may be constructed to reciprocate on the table in any suitable manner. As shown in the drawings, the frame of the table is provided with a V-shaped rib or track 22, which engages a groove in the screen-frame and allows the latter to slide freely back and forth. The vibratory movement of the table on its foundation is accomplished by a similar construction, as shown at 23.

The screen-frame is preferably constructed as shown in Fig. 7, in which the two side bars A are connected by a rod D, having threaded extremities entering sockets formed in the side bars. To these threaded portions of the rod are applied nuts 0, which when screwed against the bars will force the latter outwardly and tighten the screen or increase its tension. The bars A are provided with tenons A, which engage enlarged mortises formed in the end bar B, thus permitting the side bars sufficient range of movement as the nuts are turned to allow the necessary adjustment of the screens tension. The screen fabric is not shown in Fig. '7.

The feed-water is discharged upon the upper part of the table in the rear of the screen 14 from a perforated pipe 24, provided with Valves or stop-cocks 25 for regulating the water discharge.

The upper part of the table in the rear of the screen 14 is provided with projections 26, which extend above the surface of the table and facilitate the separation of the mineral from the gangue.

Having thus described my invention, what I claim is- 1. The combination with a transversely-in clined concentrating-table having a movement whose tendency is to carry the material longitudinally from the head toward the tail of the table, and means located at one of the upper corners of the table for feeding pulp thereto, of a water-receptacle mounted on the table and covering a suitable area at the orefeed corner, a screen located above the waterreceptacle, and an intermediate plate provided with projections having openings in their upper extremities forming nozzles, and means for introducing water to the water-receptacle and forcing it up through the said nozzles and thence through the screen which is arranged to receive the pulp as it is fed to the table.

2. The combination with a concentratingtable, of a screen mounted on said table and arranged to receive the material as it is discharged to the table, a plate located below the screen and provided with projectionshaving openings in their upper extremities forming nozzles to discharge water through the screen, means located below the plate for forcing water up through the nozzles of the latter, whereby the finer mineral values are made to pass through the screen, thus sepa rating them from the gangue and coarser particles, and means located below the screen for removing said finer particles and conducting them to the body of the table at the rear of the screen.

3. The combination with a vibratory concentrating-table,of a water-receptacle mounted on the table and arranged to move therewith, a perforated plate located in said receptacle, a plate located above the perforated plate and provided with upward projections having openings in their tops, and a screen of suitable mesh located above said last-named plate, and means for feeding the material to said screen.

4. The combination with a concentrator of the class described, of a water receptacle mounted on the table and arranged to move therewith, a screen mounted on the table above the water-receptacle and arranged to move independently of the table, and means for forcing water from the Water-receptacle up through the screen, whereby the pulp as it falls upon the screen encounters wash-water for the purpose set forth.

5. The combination with a concentratingtable, of a screen mounted on the portion of the table which receives the pulp, a plate located below the screen and provided with upward projections having openings in their tops, and means located below the said plate for forcing water up through the projections of the latter as the material is discharged on the table for treatment.

6. The combination with a concentratingtable, of a screen mounted on the portion of the table to which the pulp is fed, a plate located below the screen and provided with nozzles arranged to discharge water up through the screen, means located below said plate for forcing water up through the nozzles of the latter, as the material is discharged on the screen for treatment, and means also located below the screen for receiving the mineral particles which pass through the latter, and conducting them to the body of the table, whereby they are segregated from the gangue and coarser mineral particles, substantially as described.

7. The combination with a vibratory concentrating-table of the class described, of a screen mounted above and resting on the portion of the table to which the material is fed, means located below the screen for forcing water up through the latter, means for feeding to the screen, the material to be treated, and means for imparting to the screen a lateral vibratory movement independently of the tables movement.

8. The combination with a concentratingtable of the class described of a screen moun ttable to which the pulp is fed, means located below the screen for forcing water up through the latter as the material is discharged thereon for treatment, means also located below the screen for receiving the mineral values which pass through the latter, and conducting them to the body of the table which is provided with projections on the upper portion of its surface of the rear of the screen, and riffles on its lower portion, substantially as described.

10. The combination with a concentratingtable, of a screen mounted on the portion of the table which receives the pulp, and provided with a frame adjustable to regulate the tension of the screen, a plate located below the screen and provided with nozzles for discharging water up through the screen, and means located below the plate for forcing water up through the nozzles of the latter as the material is discharged on the table for treatment, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

AUGUST TEN WINKEL.

Witnesses: I

DENA NELSON, A. J. OBRIEN.