US332696A - Ore-separator - Google Patents

Description

(No Model.)

G. H. BLAKE.

v ORE SEPARATOR. No. 332,696. Patented Dec; 22, 1885.

75667168868 Inventor M %.%.@4/&,\ %W Z GEORGE H. BLAKE, OF PORTLAND, MAINE.

ORE-SEPARATOR.

EPECIFICATION forming part of Letters Patent No. 332,696, dated December 22, 1885.

Application filed May 19, 1884. Serial No. 132,112. (No model.)

To aZZ whom it may concern:

Be it known that I,- GEORGE H. BLAKE, residing in Portland. in the county of Cumberland and State of Maine, have invented cer tain new and useful Improvements in Ore- Sepa-rators; and I do hereby declare that the following is afull, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

This invention has relation to a novel and ingenious means for separating gold, silver, lead, copper, and other heavy ores from silica and other gangue minerals; and it consists of certain constructions and arrangements of mechanical parts whereby the heavy ore is separated from the gangue minerals by means of a current of atmospheric air, as will be hereinafter pointed out and claimed.

In the accompanying drawings, Figure l is a side view of a device embodying the present invention. Fig. 2 is an end view of the inlet- P 1 Same letters of reference indicate the same or corresponding parts.

In the annexed drawings, A represents a suction-fan (which may be of any common and well-known design) having an outlet-pipe, H. Attached to the suction-fan A on the side opposite the pipe H is seen a part, K, which I have denominated the inlet pipe or tube. At its outer end this pipe is provided with air slits or openings 0. On its top near the outer end the pipe is provided with a hopper or funnel, B, through which ore is fed into the interior of the inlet-pipe. The flow of ore from the hopper B into the inlet-pipe K is adjusted and controlled by a regulatingslide, I. \Vithin the inlet-pipe and resting on its floor is seen a drawer, F. The drawer is placed directly under the hopper or funnel B, to catch and hold the falling particles of ore as they are fed through the funnel into the inlet-pipe K. The floor of the inlet-pipe is broken into any convenient number of inclined planes D, running to pockets E.

The operation of the device is as follows: The suction-fan A is set at work by power applied in any convenient manner. As soon as the fan starts the air is sucked from the inlet-pipe K and expelled from the outletpipe H. As fast as the air is exhausted from the inlet K its place is supplied with atmospheric air, which enters the inlet through the air-slits 0. Thus, as the operation of the suction-fan A is continued, a strong current of air is produced through the inlet-pipe K, said current of air being regulated by a damper, G. After the current of air is fully established a quantity of pulverized ore and associated gangue minerals is poured into the hopper or funnel B. The regulating-slide I is adjusted to permit free discharge of ore, &c., into the inletpipe. As the stream of falling particles passing from the hopper enters the inlet-pipe it is caught in the current of air, and the lighter particles of silica and other gangue minerals are taken up and sucked along the pipe K, and finally discharged out of the tube H. The particles of ore which are heavier than the gangue minerals are not carried along by the current of air, but fall through it into the drawer F, from which they can be removed at pleasure. As some of the falling ore particles maybe sucked beyond the box or drawer F, I make the floor of the inlet-pipe K with a series of inclined planes, D. The ore falls upon the planes and slides down the same into the pockets E, from which the particles can be easily removed by properly-arranged slides.

\Vhat I claim as my invention, and desire to secure by Letters Patent, is-

An ore-separator comprising the pipe K, having on its under side the inclines D, pockets E, and drawer F, and at its outer end the hopper B, provided with regulating-slide I and the slots 0, and at its opposite end with damper G and suction-fan A, all constructed and arranged as described, and for the purposes set forth.

In testimony that I claim the foregoing as my own invention I have affixed my signature in the presence of two witnesses.

GEO. H. BLAKE.

W'itnesses:

GEO. M. SEIDERs, GEORGE LIBBY.

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