US325129A - Ore-concentrator - Google Patents

Description

(No Model.) s sheetssheet 1. E. W. STEPHENS. URB GONGBNTRATOR.

Patented Aug. 25, 1885.

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(No Model.) I 3 Sheets-Sheet 2. E. W. STEPHENS.

ORE GONUENTRATOR.

No. 325,129. Patented Aug. 25, 1885.

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4N@ Model.) 3 sheets-sheet 3. E. W. STEPHENS.

ORE GONGBNTRATOR.

No. 325,129. Y Patented Aug. 25, 1885.

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EDV/IARD IV. STEPHENS, OF ERIE, PENNSYLVANIA.

ORE-CONCENTRATOR.

SPECIFICATION forming part of Letters Patent No. 325,129, dated August 25, 1885u (No model.)

To all whom, it may concern:

Be it known that I, EDWARD W. SrnrHnNs, a citizen ofthe United States, residing at Erie, in the county of Erie and State of Pennsylva nia, have invented certain new and useful Improvements in 0re-Goncentrators; and I do hereby declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which it appertains to make and use the same.

rIhis invention relates to that class of oreconcentrators in which. the ore-bed is moved; and it consists in certain improvements in means for actuating the ore-bed, as will be hereinafter fully described, and pointed out in the claims.

My device is illustrated in the accompanying drawings, as follows: Figure 1 is a side elevation. Fig. 2 is a top or plan view, with parts broken away to show other parts. Fig. 3 is a vertical section at one end of themachine on the line .r .e in Fig. 4. Fig. 4 is an end elevation with parts broken away.

r1`he machine is rectangular in form, and the one which I have constructed is ten feet long and six feet wide. The stationary framev work consists of a base-frame, I, ot' square timber, and iron upright brackets I I at each end. A main shaft, t3, is adjusted in the middie of the frame and extends from end to end. It is run from a drivingshai't and gears 1 1 1 and 2, or it may be run from a belt where mounted directly upon it. At each end of the frame, mounted on the brackets I I', are upright shafts 6 6, which are run freni the shaft 3 by gears 4 and 5. On the top of these upright shafts are crank-heads '7 7, with adjustable crank-pins 8 S, which are adjusted by the screws 9 9. (See Figs. and 4.) The crank-pins pass transversely through trunnion'bars 10 16, which are mounted in boxes H H on cross-beams of a frame, G. IThis fra-me is supported on these trunnions and on universally-jointed toggles J J J J at each corner ot' said frame. These toggles are provided with round ends, which are inserted in cups j, attached to the frame Gr` and arcshapcd blocks J. In Figs. 3 and 4 this arrangement is clearly shown. However, in Fig. 4, the boxes H H are broken away, but are clearly seen in Fig. 3 and also in Fig. 1.

It will be seen that as the shafts 6 6 are revolved the frame G is given a horizontal rotary or orbital movement, the radius of the circle of rotation being adjusted by the adjustment of the cranlepins S in the heads 7. It will also be seen that as this rotation takes place the toggles J will lift the frame up first on one side and then on the other, thus rocking it on its trunnions 10. gree of this rocking is also adjustable by adjusting the feet of the toggles on the arcshaped blocks J, which are attached to the base I. The throw of these toggles is shown by dotted lines in Figs. 4 and 1.

A second frame, F, is mounted on the frame G on rollers L L in brackets K at the four corners. This frame F is so held that it receives all the movements given to the frame G, and it may also be moved longitudinally on its rollers L L independently ofthe frame G. Such a longitudinal movement is given to this frame by the following appliances: On the'shaft 3 is an eccentric, 19, which is connected by a connecting-rod, 1S, with an arm, 1h, said connection being made by a universal joint, 17, said arm 16 being collared upon a shaft, 1l, on which is a disk, 13, having a catch, 14, and on the arm 16 is a pawl, 15, which engages with the catch 14. At the ends of shaft 11 are disks 12 with catch-pins j, which engage with catch-pins f on the sides of the frame F. \Vhen the arm 16 is pulled down by the eccentric 19, the shalt 11 is rocked, and this, by reason of the eatehesff, draws the frame F forward 5 but when the arm 16 has been depressed certain distance the pawl 15 comes in contact with the stop-pin 21, (see Figs. 1 and 3,) and is thrown off the catch 14.

The part 2O consists of a bar hinged to the body of stop 21, and extends through the pawl 15. Interposed between the hinge and pawl is a coiled spring, which is compressed when the frame is drawn forward, and forces the pawl into the position shown in Fig. 1 when the latter is released. \Vhen this occurs, a reacting spring, F2, which is adjusted to resist the separation of the buffers F G, suddenly drives the frame F back giving it a sudden jerk. rIhe buffers F and G are preferably angle-irons attached, respectively, to frames The de-n IOO F and G. To buil'ers Gr is attached a rod having a set-screw at its distal end, and a coiled spring, F2, interposed between the setscrew and the buffer F, so that when the frame F is drawn back the spring will be compressed and will force the buffers together when the pawl has been released from catch 14:. This whole movement need not be more than a quarter of an inch.

A rubber plate, g, may be put between the buffers F G to prevent noise, if desired.

It will now be seen that the frame F has imparted to it a horizontal rotary and a vertical oscillatory and a sudden intermittent longitudinal movement. On this frame I mount the ore-bed, and thus to it is imparted all the forenamed movements, as well as a continuous longitudinal or feeding movement. The manner of so mounting the ore-bed is as follows: At each end of the frame are brackets B2, which are provided with an adjustable part, B3, which is mounted on guides Bon the part B2. The said parts B3 carry the journalboxes of the drums B, on which the endless ore-bed B is adj usted. The brackets B2,at one end of the frame, are mounted so as to be movable on plates B5, and made adjustable by screws B, so as to properly adjust the drums to the length of the belt-like bed B. The screws B6 are inserted in screw-threaded lugs lf on plates B5, and work in sockets bT in the frame B2. lf it be desired to adjust the frame B2 toward the front of the machine, the screw nearest the front is partly unscrewed, and the screw at the other side of the frame screwed in until the desired adjustment is made. On each side of the upper part of the bed are rails B7, in which are journaled rollers b b b, &c., which prevent the bed B from sagging between the drums. The bed may be set perectly level, but I prefer to give it a slight ineline toward the tail. The bed is made to move slowly toward the head--that is, up the incline. This movement is effected by a slow rotation of one of the drums by clutching device 28 and 27, (as shown it is a friction or binding clutch, but it maybe a toothed ratchet, if desired,) which is operated bythe rod 26, crank 25, rock-shaft 22, rock-arm 24, and eccentric 28. The crank 25 is made adjustable, so as to regulate the degree of movenient. is the feeding-hopper; C, the water supply; D d d, water-jets for clearing the concentrations or headings from the bed. E is the headings-receiver.

The bed B may be made of india-rubber or of metal, and it may be in one piece.

rlhe surface of the bed is divided into a series of pan-like spaces, B8, by curved rifies. The bottom of these rifles may be iat,as shown in Fig. 2, or depressed, as shown in Fig. 3. rI he riftles catch and retain the'matter being acted v upon, and also serve as dams to the water; and,

being curved,the water and sand are held as in a pan, and the rotary motion given to the bed agitates the water and sand substantially the same as a miner agitates them in a handpan. The light particles of sand escape with the water over the top of the riifies and pass toward the tail end of the machine, while the ore is retained in the pans, and is thus carried toward the head ofthe machine. The bed is made with side pieces or flanges, to prevent the matter being acted or operated upon from escaping at the sides.

The jerking or jarring movementis for the purpose of moving pebbles or coarse pieces of rock which are not weighted with ore, and which are too heavy to be washed over the rifiies by the action of the water toward the tail end of the machine; and hence,when such matter does not exist in the auriferous matter being operated upon, the said jarring movement is not necessary. From the foregoing description the operation can be sufficiently understood without further description.

Vhat I claim as new is* 1. In a wet-ore concentrator, the combination of an ore-bed having a series of curved rirlies forming a series of pan-like spaces, a frame supporting said ore-bed, and mechanism for actuating said ore-bed in a horizontal orbit, substantially as described.

2. In a wet-ore concentrator, the combination of an endless-belt ore-bed having a series of curved rii'lles forming a series ot' pan-like spaces, drums on which said ore-bed ismounted, a frame supporting said orebed and drums,and actuating mechanism,substantially as described.

3. In a wet-ore conceutrator, the combination, substantially as described, of the following elements: au ore-bed having a series of IOO rifiies forming a series of pan-like spaces, a

frame supporting said ore-bed, gearing, substantially as described, for moving said frame in a horizontal orbit, a base-frame, and universal-jointed toggles for giving said frame a tipping movement as it is rotated, substantially as sh-own.

4. In a wet-ore concentrator, the combination, substantially as described, of the following elements: an ore-bed, frame-work for supporting said ore-bed, consisting of two frames, one of which support-s the ore-bed and rests upon the other, and is movablev thereon longitudinally, gearing, substantially as described, for moving both said frames in an orbit, and other gearing, substantially as described, for reciprocating the upper frame upon the lower while both are being rotated, as set forth.

5. Ina wet-ore coneentrator, the combination, with the ore-bed B, mounted and moved as a conveyer, substantially as described, ofthe frames G and F, the upright shafts-6 6, crankpins 8, toggles JJ, trunnions 10 l0,and crankheads 7 7 for supporting and moving said frames, in the manner and for the purposes set forth.

6. In a wet-ore concentrato'r substantially as described, the combination, with the orebed B and the frames F and G, of the upright shafts 6 and 6, adjustable Vcranks 7 S and 7 8,

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the trunnions 10 and 10, and the toggles J J rod 18, and eccentric 19, as described, and J J, substantially asand forthe purposes menfor the purposes mentioned. tioned. 9. The combination, with the bed B and 15 7. The combination, substantially as herein drum B, of the clutch device 27 2S, rod 2G, 5 described, with the ore-bed B, ofthe framesF crank 25, shaft 22, arm 24, and eccentric23, as and G, cranks7 8, trunnions 10, toggles J, and described, and for the purposes mentioned. the arc-shaped foot-plates J', for the purposes In testimony whereof I afiixiny signaturein mentioned. presence of two Witnesses.

8. The combinatiomwith the ore-bed Band EDVARD XV. STEPHENS. Io the frames F and G, of the buffers F G', spring Titnesses:

F1, the shaft 11, disks 12 12 and 13, catches SELDEN MARVIN, f f, ff, and 14, paw] l5, arm 16, connecting- ROBT. H. PORTER.

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