US504931A - Ore separator and concentrator - Google Patents

Description

(No Model.)

I. F. MONBLL. ORE SEPARATOR AND conenmmwon.

Patented Sept. 12, 1893.

W/TNESSE ATTORNEYS.

NTTED STATES PATENT OFFICE.

IRA FERRIS MONELL, OF SUGAR LOAF, COLORADO.

ORE SEPARATOR AND CONCENTRATOR.

SPECIFICATION forming part of Letters Patent No. 50 4,931, dated September 12, 1893.

Application filed August 26, 1892. Serial No. 444,225. (No model.)

V To all whom it may concern.-

Be it known that I, IRA FERRIS MONELL, of

Sugar Loaf, in the county of Boulder and State of Colorado, have invented a new and Improved Ore Separator and Concentrator, of which the following isa full, clear, and exact description.

The invention relates to ore separators and concentrators such as shown and described in the Letters Patent of the United States No. 333,322, granted to me December 29, 1885.

The object of the present invention is to provide a new and improved ore separator and concentrator which is simple and durable in construction, very effective in operation, and arranged to conveniently adjust the mechanism for bumping a depending swinging table.

The invention consists of certain parts and details and combinations of the same, as will be fully described hereinafter and then pointed out in the claims. Reference is to be had to the accompanying drawings forming a part of this specification, in which similar letters of reference indicate corresponding parts in both figures.

Figure 1 isaside elevation of the improvement with parts broken out; and Fig. 2 is a transverse section of the same on the line 2-2 of Fig. 1.

The improved ore separator and concentrator is mounted on a suitably constructed frame A in which is mounted to swing a table B, supported on rods C depending from suit able cross beams on the top of the frame A. In the ends of the table B are mounted to turn the drums D and D, over which passes the endless belt or apron E, also passing over rollers F journaled in the side beams of the table B. The belt, after leaving the drum D, passes downward under a driving drum G, secured on a transversely extending shaft G journaled in suitable bearings on the front end of the frame A. On one end of the shaft G is secured a worm wheel G in mesh with a Worm H attached to a shaft H extending longitudinally and j ournaled in suitable bearings on one side of the frame A. On the shaft H are secured the collars H and 1-1, against which press the springs H and H respectively, coiled on the said shaft and abutting at their inner ends on a bracket H attached to a brace A of the main frame A.

The tension of the belt E around the table B causes the roller G journaled on the stationary frame to have a slight oscillating movement when the table B is reciprocating and this causes a pounding by the worm wheel G upon the teeth of the worm H.

The springs H H therefore allow the shaft H to yield slightly which prevents the wheel and worm from being injured. The bracket H forms the outer bearing for the shaft H. The shaft H is connected by a pulley and belt with the usual driving mechanism to impart a rotary motion to the said shaft, so that the latter, by the worm H and the worm wheel G rotates the drum shaft G and the drum G, so as to impart a traveling motion to the belt E. The belt, afterleaving the drum G, passes over a roller I, and then over a roller 1 to the other drum D, the said rollers I and I being journaled in bearings J held adj ustably on the braces A of the frame A, so as to give the desired tension to the belt or apron E.

On the table B is secured a pushing block K, provided on one face with'a rubber cushion K, on which is adapted to press a handled nut L, screwing on the threaded part of the eccentric rodNof an eccentric N secured on a transversely extending shaft N The eccentric rod N passes loosely through the cushion K and the block K, so that on the forward motion of the said eccentric-rodN the nut L ismoved against the cushion K to impart a swinging motion to the table B in the direction of the arrow a. On the shaft N carrying the eccentric N is secured a cone pulley N (see Fig. 2,) connected bya belt N with a similar pulley N secured on a transversely-extending driving shaft N connected by suitable mechanism with machinery for imparting a rotary motion to the said shaft N so that a continuous rotary motion is transmitted by the cone pulleys N and N .and the belt N to the shaft N A screw rod 0 is held in a cross beam A of the frame A and extends loosely through the pushing block K, the outer threaded end of the said rod being provided with a handled nut P adapted to abut against a rubber cushion Q, similar to the cushion K above mentioned. The cushions K and Q are located on opposite sides of the block K, as will be readily understood by reference to Fig. 1, so that on the return movement of the table B the nut P abuts on the said rubber cushion Q, while on the forward motion, as above described, the nut L abuts and presses on the cushion K.

On the front end of the machine, next to the drum D, is arranged a concussion block R held removably on a post A of the main frame A. On the face of this concussion block R is held adjustably a block S adapted to be engaged by the projecting end of the table carrying the drum D. The adjustment is efiected by means of a bolt R passed through the block S and upper end of post A The outer end of the bolt R is provided with a nut by tightening which the block R will be compressed and the table will make a hard bump but by loosening the nut the table will be cushioned. The machine is also provided with chutes and hoppers for passing ore upon the belt E, and is also provided with water feeding devices for washing the ore on the said belt.

The operation is as follows: When the table B is caused to swing forwardin the direction of the arrow a by the action of the eccentric N, as above described, then the table, when reaching the end of its outward stroke, receives a concussion by striking the plate S on the removable concussion block Rso that the material on the belt E is agitated. A second concussion on the return stroke of the table B is avoided as the table on the return stroke follows and finally abuts and rests on the cushion K. The main object of the cushion Q is to retard or hold back the Weight of the table so that the concussion will be as light as desired. Itis understood that a heavy concussion is not desirable as such concussion vibrates or shakes the mineral up into the current which carries it off along with the sand. By adjusting the nuts L and P the operator can set the blocks K and Q to insure proper concussion. It will be seen that by adjusting the nuts L and P the concussion of the table B can be regulated according to the nature of the material under treatment. As shown in Fig. 2, the rollers Fare cone-shaped at their ends, so as to cause the belt to be turned up at its edges,while passing over the said rollers, to prevent lateral displacement of the material on the belt.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent 1. An ore separator comprising a pendent freely swinging table, having a pushing block provided with an aperture, a cushion secured on the front face of the said block and provided with an aperture registering with the aperture in the block, and a threaded eccentric-rod or pitman extending freely through the apertured cushion and block and provlded with a nut to strike the cushion in the forward throw of the rod and swing the table, then recede from the cushion when the rod is retracted to again strike the cushion on the return of the table and jar the latter and again throw it, substantially as set forth.

2. An ore separator and concentrator provided with a pendent swinging table having a pushing block, an eccentric rod passing loosely through the said pushing block, a nut held adj ustably on the said eccentric rod and adapted to press a rubber cushion on the said block, and a stationary screw rod passing loosely through the said pushing block and provided at its outer end with a nut adapted to engage a cushion on the opposite side of the said pushing block, substantially as shown and described.

3. In an ore separator and concentrator, the combination with a pendent swinging table and means for imparting a forward motion to the said table, of a fixed screw rod passing through a pushing block attached to the said table, anut held adjustably on the said fixed screw rod, and a pushing block secured on the said table and provided with a rubber cushion adapted to be engaged by the said nut on the return movement of the said table, substantially as shown and described.

4. Au ore separator and concentrator provided with a driving shaft for the endless traveling belt, collars secured on the said shaft, and springs abutting against the said collars and on a fixed bracket forming abearing for the said shaft, substantially as shown and described.

IRA FERRIS MONELL.

Witnesses:

JOHN T. OARMAcK, R. E. OAINE.

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