US1420975A - Ore jig - Google Patents

Description

F. DE MIER.

ORE JIG.

1,420,975. APPLICATION FILED JULY 6,192l.

4 SHEETSSHE 1.

rrcti A TTORNEYS F. DE MIER.

ORE HG.

APPLICATION FILED JULY 6,1921.

Patented June-'27, 1922.

4 SHEETS-SHEET 3- lwm'l pn Fred De Myer;

. WITNESSES ATTORNEYS F. DE MIER.

ORE JIG.

' APPLICATION men JULY 6, 1921. 1,429,975. Patented June 27, 1922.

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A TTORNEYS' rates n it" FRED .DE MIER, 0F PICHER, OKLAHOMA.

ORE JIG.

Specification of Letters Patentl Patented June 27 1922 Application filed July 6, 1921. serial No. 482,700;

T 0 all w 720% it may 0011 0cm- Be it known that I, FRED D1; 'MIER, a citizen of the United States, and a resident of Picher in the county of Ottawa and State of Oklahoma, have invented certain new and useful Improvements in Ore Jigs, of which the following is a specification;

My invention relates to jigs for recovering ore and a purpose of my invention .is the provision of aijig whichv eliminatesthe employment of water as a separating medium and the resultant ore losses, and provides mechanicalmeans therefor unaided by water. ,7

It is also a purpose of my invention to provide a jig in which the screened bottoms of the cells are all on one and the same level, and which includes a plurality of rakes mounted for curvilinear movements in the cells and simultaneously by a single actuating means to effect the successive raking of the material from. one cell to the other throughout the series. a I v 1 I will describe one formof jig embodying my invention, andwill then point out the novel features thereof claims,

In the accompanying drawings: Figure 1 is a view showing in side eleva tion one form of jig embodying myinvention. a a

Figure 2 is a topplan view .of the jig shown in Figure 1 Figure 3 is an enlarged detail. perspective view of a portion of the raking member and adjacent mechanism, 2

Figure i is a viewshowing in end eleva tion the jig shown in Figures 1 and 2. v

Figure 5 is a transverse sectional view taken on the linej5 5 of Figure 1. c, Figure 6 is a longitudinal sectional view Y taken on theline 6 6 of Figure 4:.

Similar reference characters refer tosimi lar parts in each of the several views. I 7

Referring specifically to the drawings, my invention in its present embodiment com prisesa tank designated at which n the present instanceis of'rectangularformation as shown in Figure 2. This" tank is providedwith a dividingwall 15 arranged longitudinally thereof at a, point medially between the sides" of the tank in the manner clearly shown in "Figure 5. This wall 15 divides the tank longitudinally into a plun ger section 16 and a separating section 17. The bottom of both sections 16] and is defined by a wall 18 which is inclined from 'thejplunger section downwardly to the separating section. thus serving to deflect the water and ore downwardlyin the direction of a plurality of outlet ports 19 controlled vby faucets 20.

" As clearly shown in Figures 2 and 5n the plunger section is divided into a plurality -of compartments by partitions 21 arranged transversely and at regular intervals [along the length of the section. Supported upon each partition 21 is a bearing 22 in all of which is journaled-a shaft 23 adapted to be driven by'apulley 24 about which is trained a belt 25 connected to some suitable source of power (not shown). Fixed eccentrically and at regular intervals on the shaft .23 are cams 26, one for each of the compartments. Loose-lyvembracing each cam is a split ring-27 provided with yoke 28 to which is connected the rod 29 of a plunger 80. The opposite end of the rod 29 is connected to the plunger 30 through the medium of a, yoke 31 as is clearly shown in Figure 5. QThe pIunger 30 is adapted to be reciprocatedivertically within the 'corre- 1 sponding compartment when the shaft 23 is rotated, it being understood that the cam 26 rotates within the ring 27 to effect reciprocation of the rod 29. all of the cams are fixed to the same shaft, itwill be clear that simultaneous movement of all of theplungers is effectedwhen the shaft 23 is rotated. Water is adaptedto be supplied uniformly to all ofthe compartments from a trough 32 arranged atone sideof the tank and com- I municating with the compartments through lnlet ports a manner clearly shown in Figures 2 and 5..

The separating section 17 is divided along its length into a plurality of compartments byvmeansof p'artitions 34, such partitions being a continuationof the partitions 21 as willpbe clearly seen by an observation of Figure 5. Within each compartment adjacent its upper end .is horizontally. arranged a screen 35,;and as clearly shown in Figure 6,the several screens of all of the compartments are disposed vin one and the same plane. That portion of each compartment above the screen constitutesa cell as desigv nated at 36 in vwhich is adaptedto work a rake composed of-a plurality of perforated angle barsiB'ZQ" The bars of all of the, rakes are sustained on a pair of channel bars 38 mounted for vertical swinging movement by means of rocker arms 39'slidably' fitted on yokes 40 fixed to the channel bars, with the rocker arms keyed to a cam shaft 41 journaled in bearings 42. An actuating rocker arm 43 is also keyed to a shaft 41 as clearly shown in Figure 2, and this rocker arm is adapted to be lifted to cause oscillation of the shaft by means of a lever 44 fulcrumed at the point indicated at 45 and having one end engaging the under side of the rocker arm 43. The opposite end of the lever 44 constantly engages the periphery of a cam 46 fixed to a shaft 47 journaled in bearings 48. This shaft 47 is adapted to be actuated by a pulley 49 about which is trained a belt 50, and the latter is adapted to be connected to any suitable source of power (not shown). The shaft 47 is formed intermediate its ends 7 with a crank 51 to which is connected a rod 52 through the medium of a yoke 53. As illustrated to advantage in Figure 3, the rod 52 is pivotally mounted between the channel bars 38 at a point indicated at 54.

From the foregoing mechanism it will be clear that when the shaft 47 is rotated a corresponding movement is imparted to the cam 46 thereby effecting a rocking of the lever 44 and through the latter a rocking of the arm 43. As the arm 43 is keyed to the shaft 41, it will be clear that an oscillatory movement of the latter is effected which in turn alternately lifts and lowers the rocker arms 39 to cause corresponding movement of the several rakes within the cells 36. Simultaneously with the vertical movement of the rakes, the crank 51 actuates the rod 52 to effect reciprocation of the rakes. This movement in conjunction with the vertical movement of the rakes constitutes which may be termed a curvilinear movement as the rakes substantially describe the path of an ellipse. In practice, the mechanism operates in such a manner that the several angle bars 37 move forwardly or to the left as when viewed in Figure 6 when in lowered position, and rearwardly or to the right when in elevated position, the lowering and elevating of the rakes occurring at the extremities of their horizontal movements.

As shown in Figures 2 and 5, the outer side wall of each cell is formed with an outlet port 55 which effects communication between the cell and a launder 56 which is arranged on an incline at one side of the tank as clearly shown in Figure 1 so as to underlie all of the ports. Each port is controlled by a shut-off 57 slidably mounted in guideways 58.

In the operation of the jig, crushed rock or any other material to be treated is fed into the first cell to the right as when viewed in Figure 6. This cell has been previously filled with water and bedded in the usual manner. As the material accumulates on the screen 35, it encounters the angle bars 37 of the correspond ng rake, the latter being separating section, the ore within the cell above referred to works down to the bottom of the cell, the fines pass through the screen and being finally drawn off through the faucet 20 while the chats and coarse ore are drawn off through the corresponding outlet port 55. The rock in the material works to the top of the cell and during the movementof the rake to the left is moved toward and finally into the next cell in advance. This operation is repeated throughout the several cells of the jig until finally the tailings are discharged into a compartment indicated at 59 at the forward end of the tank where they are subsequently collected. The fines which percolate the screens of the cells gravitate to the bottom of the compartments where they are subsequently collected by opening of the faucets. The chats and coarse ore is discharged through the ports 55 into the launder 56.

By a consideration of the foregoing operation it will be manifest that the jig operates to convey the material from cell to cell by mechanical means only. thus rendering the action positive and eliminating the use of hydraulic power or gravity. It is to be particularly noted that the several rakes are in effect hingedly mounted to permit of their being folded back or raised during the operation of spudding.

Although I have herein shown and described only one form of jig embodying my invention, it is to be understood that various changes and modifications may be made herein without departing from the spirit of the invention or the spirit and scope of the appended claims.

What I claim is:

1. In an ore jig, a tank divided into a plurality of cells having screened bottoms, a plurality of rakes. one for each of the cells,

means for supporting the rakes for curvi-' linear movements comprising yokes, a shaft, rocker arms fixed to the shaft and having sliding contact with said yokes, means for oscillating said shaft whereby said rocker arms are lifted and lowered to effect a vertical movement of the several rakes, and means for reciprocating the rakes in such manner that the two motions occur alternately with respect to the upward and downward movements of the rocker arms.

2. In an ore jig, a tank divided into a plurality of cells having screened bottoms, a plurality of rakes, one for each of the cells, means for supporting the rakes for curvilinear movements comprising yokes, a shaft, rocker arms fixed to the shaft and having sliding contact With said yokes,

means for oscillating said shaft whereby said rocker arms are lifted and lowered to effect a vertical movement of the several rakes, a rotatable shaft, a cam fixed to the rotatable shaft, a rocker arm fixed to the oscillatory shaft, a lever operatively connecting the cam and last mentioned rocker arm to effect an oscillation of the first shaft when the second shaft is rotated whereby upward and downward movements of said rakes is effected, a crank formed on the rotatable shaft, and a rod connecting said crank with said rakes to effect reciprocation of the rakes when the shaft is rotated.

3. In an ore jig, a tank divided into a plurality of cells having screened bottoms, rakes movable within the cells and comprising perforated angle bars, channel bars rigidly connecting all of the angle bars, yokes secured to the channel bars, an oscillatory shaft, rocker arms fixed to said shaft and slidably engaging said yoke, means for 0scillating said shaft whereby upward and downward movement of the angle and chan nel bars is effected, and means for reciproeating the angle bars to effect horizontal movement of the angle bars.

4. A transfer means of the character described, comprising an elongated rake, a shaft parallel thereto, arms extending rigidly from the shaft, connecting means between each arm and rake adapted topermit raising and lowering of the rake with the rocking movement of the shaft and also adapted to permit longitudinal reciprocating movement of the rake, means whereby the shaft will be rocked to raise and lower the rake, and means for reciprocating the rake, said rocking movement of the shaft for raising and lowering the rake and said reciprocating movement of the rake occurring at such intervals as to give the rake a transferring action in one direction.

5. A transfer means of the character described, comprising an elongated rake, a shaft parallel thereto, arms extending rigidly from the shaft, connecting means be tween each arm and rake adapted to permit raising and lowering of the rake with the rocking movement of the shaft and also adapted to permit longitudinal reciprocating movement of the rake, means whereby the shaft will be rocked to raise and lower the rake, means for reciprocating the rake, said rocking movement of the shaft for raising and lowering the rake and said reciprocating movement of the rake occurring at such intervals as to give the rake a transferring action in one direction, and means for adjustably raising or lowering said arms and thereby to regulate the transferring action of said rake.

FRED DE MIER.

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