US770877A - Classifying or sizing apparatus. - Google Patents

Description

PATENTED SEPT. 27, 1904.

A. TEN WINKEL.

GLASSIFYING 0R SIZING APPARATUS.

APPLICATION FILED NOV. 9, 1903.

2 SHEETB-SHBET 1.

NO MODEL.

m\ Us m kw 0 Wc'fizesses 5A PATENTED SEPT. 27, 190-4. A. TEN WINKEL. GLASSIFYING 0R SIZING APPARATUS.

APPLIQ ATION FILED NOV. 9, 1903.

2 SHEETS-SHEET 2.

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N0 MODEL.

[noenfiorx v A M]: {I 7258 21313077696 UNITED STATES Patented September 27, 1904.

AUGUST TEN WINKEL, OF DENVER, COLORADO.

CLASSIFYING OR SIZING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 770,877, dated September 27, 1904.

Application filed Nove be 9, 1903. Serial No. 130,496. (No model.) i

To all whom it may concern.-

Be it known that I, AUGUST TEN WINKEL, a citizen of the United States of America, residing at Denver, in the county of Denver and State of Colorado, have invented certain new and useful Improvements in Classifying or Sizing Apparatus, of which the following is a specification.

My invention relates to devices employed for sorting the crushed ore into grains of various sizes preparatory to being fed on the concentrating-tables; and the object of my invention is to produce a classifying device which, operating in conjunction with the concentrating-table to which it is attached, will classify the pulp fed onto it and deposit the various sizes upon the concentrating-table along its upper edge, where water may be supplied in varying quantities, according to the size and condition of the material.

I attain my object by the mechanism illustrated in the accompanying drawings, in which the device is shown IIIOUHlZGClUPOIl a concentrating-table of the WVilfley type, although it must be understood that my sizer may be attached to and used in conjunction with any table either of the jogging or bumping variety.

In the drawings, Figure 1 is a plan view of my sizer mounted at the feed corner of a Wilfley table. Portions of the screens have been broken away in order to show screens and riflied table located underneath the upper screens. Fig. 2 is an enlarged cross-sec tion taken along line 2 2 of Fig. 1. Fig. 3 is an enlarged longitudinal section of a portion of the device, taken along line 3 3 of Fig. 1. Fig. iis afront view of Fig. 3. Fig. 5 is a section of the table, taken in front of the high side of the sizer, showing the mechanism employed for adjusting its inclination. Fig.

6 illustrates the particular screen or perforated plate which is most suitable for use on my device; and Fig. 7, a plan view of the table 14 of the sizer, drawn to a reduced scale, showing connection of compartments (0 and b of the sizer with compartments A and B on the table. Rifiles are omitted for sake of clearness.

vent longitudinal movement of the rod. crank 13, mounted on the extremity of the rod Similar reference characters refer to similar parts throughout the various views.

5 represents the transversely-inclined concentrating-table with a feed and water trough 6. This trough as it is used at present is divided into two compartments by a transversely-located partition, the. compartment above the feed-corner of the table being used for feeding the pulp onto the table, while the other compartment supplies the water necessary for the proper treatment of the ores. When my device is attached to the table, I remove the partition and employ the entire trough for the distribution of water along the table.

The sizer 7 located at the feed-corner of the concentratingtable, is inclined toward the upper edge of said table and hinged at its lowest side to the upwardly extending flange 5 of table 5 by means of suitably-located hinges 8. The opposite or high side of the sizer is supported by slotted segments 9, mounted on a threaded rod 10, the side of the sizer having been provided with bolts 11, which pass through the slots 9 of segments 9. Rod 10 is supported at one end in a stationary box 10, located on the upper surface of the table,while its opposite extremity extends through and beyond the flange 5 of table 5. Collars l2 and 12, located, respectively, at the inside and outside of flange 5 and secured to rod 10, preextending beyond flange 5, affords means for turning same. Segments 9 are provided with sleeves 9, having female screw threads for the reception of rod 10, which passes through them.

When it is desired to change the inclination of sizer 7 in relation to the surface of table 5, crank 13 is turned in the required direction, causing sleeves 9 and with them segments 9 to travel along rod 10, and bolts 11 in following slots 11 will cause the side of the sizer to be raised or lowered, according to the direction in which rod 10 is being turned. Sizer 7 is composed of a table 14, provided on its upper surface with a linoleum covering 14 and longitudinal riffles 14, placed upon and engaging the linoleum. Secured to and supported by table 14 is a rectangular three-sided frame 25, composed of two parallel sidestrips 25, connected by a cross-piece 25 the fourth side being omitted to allow the discharge of the ore from plate 14. Secured to frame 25 are two screens 16 and 17, which lying in one plane and adjoining each other extend along the entire length of the table 14. They may be fastened together by soldering or other suitable means and are provided on their upper surface with a number of projections, whose function is the breaking of the pulp which passes over the screens.

Screens 16 and 17 may be supported and kept from sagging by suitably-located supports 17 Along the division-line of the two screens is located a longitudinal cleat 19, which resting upon the linoleum covering of table 14 extends along its entire length and engaging the under surface of screens 16 and 17 divides the space between the screens and plate 14 into two compartments a and b. I Placed on top of screens 16 and 17 is a second three-sided frame 50, composed of two end pieces 50, connected by a side piece 50, the open side in this case facing the lower side of the sizer. Secured to frame 50 and resting upon projections 26 of screens 16 and 17 is a third screen 15, the upper surface of which is, like the other screens, provided with a number of projections 26.

Screen 15, extending along the entire length of the table, is of a width sufiicient to cover screen 17 and a portion of the adjoining screen 16. Its inner ,edge rests upon a cleat 20, which engages the upper surface of screen 16 and, like cleat 19, extends along the entire length of the sizer. Cleat 20 in conjunction with the upper part of frame 50 forms a rec tangular frame which incloses the entire space between screen 15and the screens located be; neath it. Screens 15, 16, and 17 vary in mesh, screen 16 being the coarsest (say forty) and 17 the finest, (sixty,) while the upper screen 15 is of a medium mesh, (fifty) The feed-box 21 is located at the upper side of the sizer, being secured thereto in any suit able way. It is provided with a number of apertures 21, which may be closed or opened by means of gates 21. The pulp on leaving the feed-box through apertures 21 falls upon the fifty-mesh screen 15. The material finer than fifty mesh will fall through screen 15 onto the sixty-mesh screen 17, through which the material finer than sixty mesh will fall into compartment 0 of the riflied table 14, along which on account of the shaking motion of the concentrating-table to which the sizer is attached it will travel along the rifiies and into a compartment A on the surface of the concentrating-table, said compartment being separated from the rest of the table by means of an upwardly-extending flange 22. The material which did not fall through screen 15 will travel over said screen and fall onto the forty-mesh screen 16, through which the material finer than forty mesh will fall into v compartment 6 of table 14, while the coarser material will on account of the shaking motion and'inclined position of the sizer travel over the edge of the sizer onto the concentrating-table at C. The material which did not pass through screen 17 will travel transversely along said screen onto the portion of screen 16 extending from the line on which it joins screen 17 to cleat 20 and will fall into compartment 6 of table 14, from where it, to-

gether with the material which fell through screen 16, will move transversely into a compartment B of the concentrating-table, which is separated from the before-mentioned compartment A by an upwardly-extending flange 23. A third flange 24 prevents the ore coming from B from mixing with the ore which fell fromscreen 16 onto the table at C.

Partitions 22 and 23 extend, respectively, from points directly underneath the upper corner of the siZer at the discharge end and the point of termination of dividing-cleatQO at the same end of the sizer toward the edge of table 5, terminating at points underneath water-trough 6 and a certain distance away from flange 5 of the table, the function of the partitions being to compel the ore discharged from the sizer to move to the upper edge of the concentrating-table, from where it is made to run along the entire width of said table for concentrating purposes. VVatertrough 6 has a number of apertures 6 with corresponding gates 6, through which clean water may be applied to the classified material on the table, thereby facilitating its run' ning over the concentrating-table,which is especially of value when the pulp is thick and heavy. By proper manipulation of gates 6,

located above the different ore-compartments on the table, the flow of water may be regulated to suit the various sizes contained in the compartments A, B, and C.

At the discharge end of my sizer I have located a gate 30, which is guided during up and downward movement and held in place at any desired height by bolts 24, screwed into the edge of the sizer and passing through slots 30 in the gate. gate 30, which operates on the principle of a head-gate in an irrigating-ditch, I am enabled to regulate the amount of water which flows with the ore from the compartments a and I) of the table 14 onto the concentrating-table. Together with the pulp water is constantly fed onto the sizer out of feed-box 19, the. quantity of water to be sufficient to cover the sizer at all times. pulp running off screen 15 at the high or feed side of the sizer, that side is provided with an upwardly-extending flange 28, which extends along its entire length. Projections 26, although shown in the drawings as being cylindrical, may be of any desired shape, de-

By raising or lowering To prevent the water and pending largely on the kind of ore it is desired to treat.

In Fig. 4 is illustrated a section of screen or perforated plate which I preferably use on my sizer, as it obviates the necessity of stretching, is stronger and more durable than the wire screens, and does not clog.

Having thus described my invention, what I claim is 1. A classifier or sizer comprising a transversely-inclined rifiied table, adjoining screens running lengthwiseabove said table, a third screen located above said screens, a partition located on said table underneath the divisionline of said adjoining screens, cleats on said table supporting said screens, the distance between said screens and the table exceeding the height of the .riflies, substantially as described.

2. In a classifier or sizer, a transverselyinclined table, adjoining screens running lengthwise above said table, a third screen located above said adjoining screens, suitable means for dividing the space between the adjoining screens and said table into two compartments open at one end and suitable means for varying the area of the openings at said end, substantially as described.

3. In a classifier or sizer, a transverselyinclined riflied table, adjoining screens located above said table, the space between the screens and the table being divided into two compartments open at one of their ends, a gate, adapted to close said open ends, a third screen located above and covering one of the before-mentioned screens and part of the adjoining one, the space between the uppermost and lower screens being inclosedand a feed-box located above said upper screen, substantially as described.

4. The combination with a transversely-inclined concentrating-table of a riflied bed, transversely inclined toward and hinged at the upper edgeof said table, adjoining and superimposed screens secured to and above said bed, suitable means for feeding pulp onto said screens, means for discharging the various grades of ore onto said table at different points and suitable means for varying the angle between said bed and the concentratingtable, substantially as described.

5. The combination with a transversely-inclined concentratingtable of a rifl'led bed transversely inclined toward and hinged at the upper edge of said table, adjoining and superimposed screens secured to and above said bed, suitable means for feeding pulp onto said screens, means for discharging the various grades of ore onto said table at different points, a rotatable, longitudinally-station inclined toward the upper edge of a concentrating-table, of partitions extending from the discharge end of said bed toward the upper edge of said table, substantially as described.

7. The combination with a transversely-inclined concentrating-table of a rifiied bed, transversely iiiclined toward the upper edge of said table, adjoining screens of varying mesh located above and running lengthwise of said bed, a screen located above the adjoining screens, suitable means for feeding pulp onto the uppermost screen, and partitions on said table adapted to direct the material, discharged at different points from the screens and the riffled bed, toward the upper edge of the concentrating-table, and means for feeding water in varying quantities into the compartments formed by said partitions, substantially as described.

8. The combination with a transversely-inclined concentrating-table of a linoleum-covered, riffied plate, transversely inclined toward and hinged at the upper edge of said table, adjoining longitudinal screens secured to a frame on said plate, the space between them and the plate being divided into two compartments open at one end, suitable means for regulating the discharge from the compartments, a screen located above and covering one of said screens and part of the adjoining one, projections extending above surface of said screens, a feed-trough located above the uppermost screen, means on the concentrating-table for directing the various grades of ore, discharged onto it, toward the upper edge of the table, a water-trough lo cated at the upper edge of the table and provided with discharge-apertures and corresponding gates, and suitable means for varying the inclination of the riffled plate in relation to the table, substantially as described.

In testimony whereof I have signed my name, before two subscribing witnesses, this 3d day of November, 1903. I

AUGUST TEN WIN KEL.

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