US321937A - bailey - Google Patents

Description

(No Model.) 2 Sheets-Sheet J. W. BAILEY.

ORE PULVBRIZING AND AMALGAMATING MILL.

N0. 321,937. Patented July 14, 1885.

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N. PEIEHS. Phemumngmpher, wnmmgtun. D. C.

(No Model.) 2 Sheets-Sheet 2.v

J. W. BAILEY.

ORE PULVERIZING AND AMALGAMATING MILL.

N0. 321,937. Patented July 14, 1885.

will" e flare/Z201? f DNTTnn STATES PATENT Trice.

JOHN XV. BAILEY, OF DENVER, COLORADO.

ORE PULVERIZING AND AMALGAMATING iVilLL.

SECIFICATION forming part of Letters Patent No. 321,937, dated July 14, 1885.

Application filed September 15, 1884. (Xo model.)

TQ all whom, it rmi/,y concern:

Be it known that I, JOHN W. BAILEY, of Denver, in the county of Arapahoe and State of Colorado, have invented certain new and useful Improvements in Ore Pulverizing and Amalgamating Mills, of which the following is a specification, reference being had to the accompanying drawings, and to the letters of reference. marked thereon.

The object of this invention is to effect the pulverization, washing, and discharge of the stock, and the process of amalgamation in a rapid and effective manner by a simple com! bination of devices which shall not be liable to derangementI and shall be capable of ready repair.

In the accompanying drawings, Figure 1 is a vertical section of my improved mill, vthe machine being shown in connection with aY portion of the driving mechanism. Fig. 2 is a similar section showing a modified construction. Fig. 3 is a sectional plan'..` Fig. 4 is a sectional plan showing a modification. Fig. 5 shows a detail ot the driving mechanism.

Similar letters of reference indicate similar parts in the respective figures.

Ais apan, heavily constructed of metal, and secured to timbers a by bolts a. Within the lower part of the pan are the vertical and horizontal rings c a, which are of chilled or hardened metal, and so constructed or composed as to withstand violent shocks and wear.

B is the muller, heavily constructed of castiron, and provided with an exterior annular band, b, of chilled or hardened metal. The muller proper is of cylindrical formation, and provided with a central cylindrical eXtension, c.

Across the top of the pan is a bar, C, securely bolted to the pan, as shown. The central portion of the bar is provided with a spherical socket, d, which forms the fulcrum of a lever, D. The end of the short arm has a ball end which rests within aspherical socket formed within the extension c of the muller. r[he long arm ofthe lever D passes through a slot, c, of a wheel, c', adapted to revolve with a vertical shaft, c, by means of a pulley, e, the shaft c being suitably supported by bearings e A weight, c5, is secured tothe upper portion of the long arm of the lever D, said weight being adjustable thereon by means of a set-screw, f.

F is a circular dish-shaped amalgamated copper plate, the upper portion or edge of y which is attached near the upper edge of the pan, the lower or smaller portion ofthe plate surrounding the vertical extension c o' the muller.

About on a level with the top edge of the circular plate F is a pipe, G, terminating ina spout, G, leading to an outer copper amalgamated plate, H, which in turn leads to the sluice-boX I.

A hopper or funnel, K, is placed at the eX- terior of the pan A, and is provided with an inclined pipe, K', passing through the pan and adapted to discharge under the circular plaie F and upon the upper surface of the muller.

A discharge-pipe, L, leads from the lower portion of the pan.

In Fig. 2 the motion is imparted directly to the muller by a connection ofthe muller by a pin, e, with the slot e in the wheel e', the lever D being dispensed with.

In Fig. 4 a double crushing-surface is shown, a loose ring, a, being placed so as to surround the muller. A series of loose rings may be employed, if desired, the crushing-surface being thus capable of increase in area.

The action of the weight c5 (shown in Fig. l) is to increase the force exerted by the muller, the weight being thrown out by centrifugal action, and, in consequence, violently forcing the muller against the vertical ring a.

The spout L is used for drawing off the gold or precious metals which settle at the bottom ofthe pan, and for discharging the contents when cleaning up.

The operation is as follows: rlhe ore and Water are fed from the hopper or funnel K through the incline pipe K beneath the eircular amalgamated copper plate F. Motion having been imparted to the driving-pulley 6', the periphery of the muller is caused to move rapidly against the vertical ring a, the muller resting and sliding upon the horizontal ring all/Il.

is to allow freedom to the long arm of the lever D, and to permit shocks to be given by the muller against the vertical ring a without injury to the lever and connected parts.

r[he function of the slot e in the wheel c It the muller has a diameter of three feet, [ive hundred revolutions per minute given to the driving-shaft will cause the band b of the muller to move upon the ring c at the rate of four thousand iive hundred feet per minute. The speed can be increased by the use ef a muller of greater diameter. rl`he movement given tothe muller is not only a rotary, but a rolling movement, and its crushing capacity upon the stock which finds its way between the band band vertical ring a, and under the muller, and between it and the horizontal ring c', is very great. The wearing-surfaces can be readily removed and other parts substituted for those worn. The amalgamation takes place in the usual manner, the metals settling beneath the muller B and adhering to the circular amalga mated copper plate F, and the outside amalgamated copper plate, H, over which the discharged pulp runs to the sluice box I. The pulverization continues in the bottom of the pan until the dross is tine enough to float in the current of water passing in at the pipe IC, and out, as indicated by the arrows, through the circular plate F and discharge pipe G. The quartz, earthy matter, and the sulphurcts, all ot' which are brittle-such as iron, lead, &c.-are crushed to a line powder, while the gold or other precious metal, being duetile, is not pulverized, and by its superior gravity will not float, being thereby saved by the action of gravitation and by amalgamation. Nal ive silver is saved in the same way. Chlorides, oxides, &c., of silver may also be saved by the use of hot water and chemicals, in order to change them to the metallic state while under processes of pulverization.

The machine is simple and effectiveand all the parts subject to wear can be readily replaced. Pulverization to a tine degree is produced, which is necessary to a close extraction ot' the precious metals.

Having described my invention, I claiml. The combination, in an ore-pulverizing mill, of a cylindrical pan, a cylindrical muller, and means for rotating it about an eccentrically-shifting vertical axis and rolling it in a horizontal plane around and against the inner sides of the cylindrical pan, whereby the plane of the muller is at all times horizontal with relation to the axial line of the pan` and the axis of the muller during its rotation is ever changing its relation to the axial center ot the pan, substantially as set forth.

2. In an ore-pulverizing mill, a cylindrical pan having vertical and horizontal bearingplates at or near its lower portion, and a cylindrical muller having a hardened pcripheral band adapted to impinge in a hoiizontal direction against the said vertical plate of the pan, combined with means for rotating the muller about an eecentrically-shifting vertical axis and rolling it ina horizontal plane around and against the inner sides of 5 the pan, substantially as set forth.

3. In an ore-pulverizing mill, a cylindrical pan, a bar across the top of said pan having a spherical socket, a. cylindrical muller within the said pan, a lever having its fulcrum in the cylindrical socket ofthe bar, and its short arm connected by a ball-and-socket joint with the muller, combined with a revoluble driving-shaft carrying a wheel united by a slotted connection with thelong arm of the lever, substantially as set forth.

4. In an ore-pulverizing mill, a cylindrical pan having vertical and horizontal bearing-plates at or near its lower portion, abar or support across the top of said pan having a spherical socket, a cylindrical muller within said pan, a lever having its fulcrum in the spherical socket of the bar, and its short arm connected by a ball-and-sockct joint with the muller, combined with a revoluble driving-shaft carryinga wheel united by a slotted connection with the long arm of the lever, substantially as set forth.

5. In an ore pulverizing and amalgamating mill, a cylindrical pan, acylindrical muller, mechanism for revolving and rolling said muller within the pan, and a dish -shaped amalgamated copper plate within the pan, open at its lower end, combined with an inlet-pipe discharging below said plate, and an outlet-pipe discharging above it, substantially as set forth.

6. In an ore-pulverizing mill, a cylindrical pan, a cylindrical muller' adapted to bc rotated within and rolled around said pan, combined with a loose ring, or series of rings, surrounding said muller, and adapted to be rcmoved from the pan, substantially as set forth.

7. The combination, in an orepnlverizing mill, of a cylindrical pan, a cylindrical muller, a lever having a ball-and-socket fulcrum in a support attached to the pan, the short arm oi' said lcverbeing united by a balland-socket `joint with the muller, and thelong` arm with a rcvoluble driving-wheel, substantially as set forth.

8. The combination of a cylindrical pan, a cylindrical muller, a lever connected with said muller and having its fnlcrnm in a support attached to the pan, the short arm ol' the lever being connected to the nmller, and the long arm ot' said lever being weighted and connected to a revoluble driving shaft, substantially as set forth.

9. In an ore pulverizing and amalgamating mill, the combination of a pan having a lower discharge-pipe, a dish-shaped amalgamated copper plate, an inlet below said plate, vertical and horizontal bearing-plates, a discharge-pipe above said amalgamatcd copper plate, a cylindrical muller, and means for revolving said muller about a shifting vertical axis and rolling its periphery against the vertical bearing-surface of the pan, substantially as set forth.

In testimony whereof I have hereunto set my hand.

Vitnesses: JOI-IN XV. BAILEY.

S. V. FARNUM, A. MIALL.

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