US409099A - Ore-separator - Google Patents

Description

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ORE SEPARATOR. No. 409,099. 7 Patented Aug. 13, 1989.

(No Model.)

Nv PETERS, Phntoliihcgnphar. Washington. D. C,

UNITED STATES ATENT QFFICE.

SAMUEL E. GRISCOM, OF PHILADELPHIA, PENNSYLVANIA.

ORE-SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 409,099, dated August 13, 1889. Application filed June 21, 1888. Serial No. 277,813. (No model.)

To all whom, it may concern.-

Be it known that I, SAMUEL E. GRIsCOM, of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a new and useful Improvement in Ore-Separators; and I do hereby declare that the follow ing is a full, clear, and exact description of the same.

My invention relates to ore-separators, and is an improvement upon the ore-separator shown in the application of Hezekiah Bradford, filed January 24;, 1887, Serial'No. 226.278. In that application is shown an ore-separator in which separation is caused by water holding the particles in suspension and carrying the tailings to one end, while the ore is caused to settle through the mass of gangue and to move to the ore-delivery end, the movement of the'particles and of the ore being-secured in an effective manner byproviding the table, practically horizontal with the ore-delivery and preferably inclined, and interposing between said table and the point of impact a bumping-beam extending the Whole length of the table and firmly secured thereto, and by means of this construction the blow imparted j to the beam is communicated to the table to vibrate the entire surface thereof, and thus to thoroughly agitate the mass upon its surface.

The present invention is designed to supplement the agitation of the mass upon the surface of the table, and in order to do this I make a slight change in the present construction of the Bradford apparatus. The leading parts, consisting of the suspended table with the elevated ore-delivery, the practically horizontal table, and the two watersupplies, are identical; but it will be understood that instead of suspending the table may be supported upon oscillating armson mounted upon rollers, it being only necessary that it should have free movement under the impulses imparted to it.

In the accompanying drawings, Figure 1 represents a sectional View of a separatingtable containing the essential features of the Bradford apparatus. Fig. 2 is a plan View of the table with a part broken away; and Figs. 3, 4, and 5 are details, the two latter represent-in g modifications.

In the drawings, the table is shown at A suspended from suitable rods a, which are provided with turn-buckles, so that the table may be adjusted. The table is shown as having an elevated ore-delivery end with a feed-board O for the ore and two water-supplies D E for providing the necessary water for separation and assisting in the agitation of the material.

The table may be composed of wood covered with metal, as described of the Bradford application, or may be composed of sheet metal, as preferred. 7

Instead of having a single beam interposed between the table and the point of impact to impart the tremulous movement to the said table, I have shown two beams, one arranged upon each side, as at F, these beams extending the whole length of the table and serving also as the sides of the table. Abumperblock, as at Z), is secured to the projecting end of each beam, and blows are imparted to the bumper-blocks to vibrate the table by means of lugs mounted on a shaft in connection with a suitable source of power. Sharp successive blows are given by the lugs, and this movement is imparted to the table through the longitudinal beams, and this keeps the mass upon the surface of the table constantly agitated, and this agitation, as before described, is assisted by the watersupply. After the table is driven in one direction by the blows from the lugs it returns by gravity or by means of a weight 0, and this movement may be assisted by a spring (1.

The parts above described are essentially the same as the Bradford construction, and the two beams described operate in substantially the same manner as the single beam of the Bradford separator.

To supplement the vibrating or tremulous movement imparted to the table and to make the agitation of the mass 011 the surface of the table more complete are the main objects of my invention, and I attain these objects by means of a series of hammers or knockers supported beneath the table and adapted to have move ment so as to come in contactwith the bottom of the table to give it ashaking or jarring movement.

In Fig. 1 I have shown a series of shafts 1) extending beneath the table, each shaft being TOC provided with a series of hammers or knockers supported on spring-arms, the knockers being shown as arranged in pairs, though one or more may be used, as desired. The shafts may be connected, as shown, by means of belts, so as to turn all the shafts in the same direction; or they may be connected by gearing, and alternate shafts may turn in opposite directions.

Instead of the spring-arms shown in Fig. 1, the knockers may be supported pivotally on a beam arranged beneath the table, as shown in Fig. I, and the table provided with pivoted lugs 6, extending into the path of angular extensions f on the knockers, springs g being provided to keep the knocker ends always elevated. As the table moves, the lugs e come in contact with the arms f, to depress the knockers, and when the lugs have passed the arms f the springs exert their force and the knockers come in contact with the bottom of the table. As the table returns, the lugs e, being pi voted, simply pass by the arms f without movement.

In Fig.5 I have shown another modification, in which Iinvert the position of the knockers shown in Fig. I, and provide a bar in connection with the shaft carrying thelugs by means of a pitman 71, the bar being shown at i and carrying rigid lugs 70, and in the movement of the bar 1' back and forth the operation is the same as described in connection with Fig. 4. The arm carrying the hammer is jointed at the pivot in this instance, so as to allow the lug to pass in one direction without effect. Instead of the lugs, I may provide a double set of knockers, as shown to the right of Fig. 5, and have an armZ in connection with the operating-bar by means ofa slot and pin,by means of which a double movementmay be secured.

It will be seen that by this construction a constant jarring movement is imparted to every portion of the under part of the table, whiehgreatly assistsin the agitation imparted by the movement of the beam and the action of the water, and makes the operation of separation perfect.

It will be understood that the knockers are supported in an adjustable frame, so as to be capable of adjustment to the same extent as the table.

I do not desire to limit myself to the application of my invention to a separator of the exact Bradford construction, for this reason: the Bradford bumping-beam has a twofold aetion first, to give movement to the ore at every shock toward the ore-delivery end, and, second, by transmitting the shock to the table in a vibratory or tremnlous 'motion to assist in agitating the mass on the surface. By the use of my hammers or knockers, however, the necessary vibratory or tremulous movement is provided, and it is only necessary that a bumping movement be imparted to thetable to cause the ore to travel toward its delivery end, and this may be effected by the means described or by means very different.

I claim as my invention- 1. An ore-concentrator comprising abumpin g beam or beams, a table supported thereby, with a tailings-delivery at one end and ap orcdelivery at the other, and means for imparting movement to said table, combined with a series of hammers or knockers arranged beneath the table, with means for imparting movement thereto to vibrate the said table and thereby assist in the separation, substantially as described.

2. An ore-concentratorcon'lprising a suitable table,with an ore-delivery at one end and a tailings-delivery at the other, means for bumping said table to cause the ore to travel to the delivery end, and a series of hammers orknockers arranged beneath the table, with means for imparting movement thereto to vibrate said table and agitate the mass upon its surface, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

SAML. E. GRISOOM.

Witnesses:

Units. L. STURTEVANT, Jos. Fonnns'r.

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