US247548A - Ore-concentrator - Google Patents

Description

(No Model.)

e. F. ESGHWEILBR.

" ORE GONGBNTRATOR.

Patented Sept. 27, 1881.

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UNITI-:D STATESY PATENT OFFICE.

CHARLES F. ESCHWEILER, OF HOUGHTON, MICHIGAN.

ORE-CONCENTRATO R.

-SPECIFICA'IION forming part of Letters Patent No. 247,548, dated September 27, 1881,

Application filed May 16, 1881.

To all 'whom it may concern Be it known that-I, CHARLES F. Escnwnr- LER, of Houghton, in the county of Houghton, and in the State of Michigan, havel invented certain new and useful Improvements in Ore- Concentrators; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to devices for concentrating ore as it falls'from t-he separator in the form of rich slime,"7 and will be fullydescribed hereinafter.

In the drawings, Figure l is a plan view, Fig. 2 an end view, and Fig. 3 a side view, of my device.

A is the frame of my apparatus, and B is the table, which is supported above theiframe by a chain, g, and'bar K, and is secured to bar I by eyebolts at f and h. The bar I is pivoted to an arm, H, of swing-post E, and its outer end is braced by an arm, F, and a bracket, F', extending up from the lower end of the swing-post E.

An arm, G, extending out from the swingpost to a' point almost in the longitudinal center of the table and beneath it, is connected by a rod, L, with an arm, c, that is securely keyed to a rock-shaft, D. Another shaft, C, has bearings immediately above the shaft D, and the two are connected by an arm, d, and the pin e' of crank e, which plays in a slot in arm d. The shaft C is connected with the driving-belt by a shifting-pulley, a, and may carry a ily-wheel, b.

The chute from whence the slime fallslto the table is indicated at l? in dotted lines.

I propose to arrange at any convenient point above the table a spray-pipe for discharging.

water into the slime, as shown in dotted lines on the drawings.

Operation: It will be seen by an examination of the drawings that the table is movably suspended above the frame by means of chain g and bar K, and that it is loosely connected by means of eyebolts at j" and h to the bars or arms I F, and thus it is capable of a swinging and also of a tipping motion. Therefore when the shaft C begins to revolve its crank- `pin will act upon the slotted arm d, and forcing it forward will rock the shaft D,fso as to throwits arm c backward, and as the crankpin c' passes over and beyond the dead-center it will throw the arm d backward, and correspondingly arm c will be thrown forward, and as the crank -pin moves more slowly when (No model.)

passing over than when passing beyond the dead-center, the arm c will be thrown backward by a jerk and forward by a stead y motion. Now, as this arm c is connected by the rod L and arm G with the swing-postE, it will recipro-4 cate the post E on an arc of a circle, and through it impart a like motion to the table, which, as it is swung forward, will be tipped by the shortening of chain g, as shown indotted lines in Fig. l. The table having been covered with slime, the forward thrust of it will tend to throw the heavier particles (which are generally the richest) forward-that is, to the left in the plan view shown in Fig. l-toward the upper left-hand corner of the table shown in said plan, while the lighter particles will be washed down to the lower left-hand "corner, as shown in said plan, and thus as the table is reciprocated in the direction indicated by dotted lines, the heavier particles will be concentrated in one corner to be crowded over into any suitable receptacle for them, and the lighter or demetallized particles will be washed off at the other corner.

The chain g may be adjusted by a handwheel, J, and secured by a ratchet-wheel and pawl, as shown.

WbatI claim as my invention, and desire to secure by Letters Patent, is-

l. In an ore-concentrator. the combination, with the shaking table, of the arm l, to which it is movably secured, the chain g, and ashaking mechanism, as set forth.

2. The combination of swing-post having arms for supporting and communicating its motion to the table, and an arm, G, with the driving-shaft C, rock-shaft D, and connecting mechanism, whereby the shaft D is rocked by the shaft U, and the swing-post is, in turn, re ciprocated by shaft D, as set forth.

3. The combination of swing-post having arms F and H with the arm I, to which the table is movably secured, and a movable support, g, adapted to tip the table as it is thrown forward.

4. The combination of shafts C and D, rod L, swing-post having arm G, and the shaking table, as set forth.

In testimony that I claim the foregoing I have hereunto set my hand thislth day of April, 1881.

GHAS. F. ESCHWEILER.

Witnesses STANLEY S. SToUT, HAROLD G. UNDERwooD.

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