US763019A

US763019A - Ore sizer and concentrator.

Info

Publication number: US763019A
Application number: US17141603A
Authority: US
Inventors: Ansel H Phinney
Original assignee: Individual
Current assignee: Individual
Priority date: 1903-08-31
Filing date: 1903-08-31
Publication date: 1904-06-21
Anticipated expiration: 1921-06-21

Description

1%. 7 3,019. PATBNTED JUNE 21, 1904.

. A. -H. PHINNEY.

ORE 'SIZER AND GO'NGENTR'ATOR.

APPLICATION r-ILnn um. 3;, 1903.

K0 MODEL.

Q Attorney UNITED STATES Patented J line 21, 1904.

PATENT OFFICE.

ORE SIZERAND CONCENTRATOR.

SPECIFICATION forming part of Letters Patent N 0. 763,019, dated June 21, 1904.

Application filed August 31, 1903. Serial No. 171,416. (No model.)

To all whom it may concern:

Be it known that I, ANsEL H. PHINNEY, a citizen of the United States, residing at Turner, in the county of Arenac and State of Michigan, have invented certain new and useful Improvements in Ore Sizers and Concentrators; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention is an improved ore sizer and concentrator especially adapted for use for In the accompanying drawings, Figure 1 is a vertical longitudinal sectional view of an ore sizer and concentrator embodying my improvements. Fig. 2 is a top plan view of the same. Fig. 3 is a transverse sectional View of the same, taken on the plane indicated by the line a a of Fig. 1.

In the embodiment of my invention I provide a vat or trough l, of suitable size, which in practice is usually about twenty feet long, four feet wide, and ten inches deep. bottom of the vat or trough is formed by a plurality of hoppers 2, which extend from end to end thereof, and the sides of which converge downwardly. Each ofsaid hoppers is provided at its lower end with a dischargeopening 3, controlled by a suitable valve or gate 4. The trough or vat is provided also with a false bottom 5, which extends from end to end and side to side thereof, the said false bottom being formed of a number of longitudinally-disposed bars 6, which are triangular inform and suitably spaced apart, as at 7, to admit of the passage of ores and other finely-ground material between them. The sides of the said bars 6 converge upwardly, as shown. The trough or vat is supplied at one end with material at the surface of the liquid by a pipe or other suitable duct 8 and is provided at its opposite end at the level of The Y thetop of the liquid with a discharge spout or lip 9. I

In the operation of my invention the material, together with water, is fed to the trough or vat by a supply-duct 8. The screen formed by the false bottom arrests the descent of the larger particles of quartz and other material. The rate of deposit from the liquid will be controlled by the factors of the size of the particles and also their specific gravity, the

, valves or gates 4. It will be understood that the material is thoroughly'washed as it passes through the trough or vat and that the lighter worthless particles are carried off by the water from the trough or vat, while the valuable ores or other heavier particles by specific gravity become precipitated in the hoppers. The triangular bars which form the coarse bottom or screen by the provision of their upwardly-converging sides facilitate the passage of the finer particles through said screen. The said bars, in effect, constitute corrugations which are longitudinally disposed in the screen, and the spaces between the bars, in effect, constitute openings in the screen. The said screen cuts off the moving liquid in the vat from the still liquid in the hoppers and the corrugations 10 to prevent counter-currents, it being desirable that the solution should move at an even rate of speed from the inlet to the outlet of the vat. Such a motion is facilitated by the bars of the screen, and a finer deposit is received in each successive hopper. I do not desire to limit myself to this peculiar construction of the screen, and the same may be modified without departing from the spirit of my invention.

From the foregoing description, taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood without requiring a more extended explanation.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. An ore sizer and concentrator comprising a vat having a discharge element at one end, means at the opposite end to supply material, suspended in liquid, to the vat, a plurality of hoppers below the level of thedischarge element and forming-a series of waterchambers, and a screen forming a false bottom extending over the hoppers, and having longitudinally-disposed laterally-spaced screen elements extending below the water-level of the vat, said screen elements serving to form a series of straight guiding-channels opening at the bottom into the hoppers and extending from the feed to the discharge ends of the device.

2. An ore sizer and concentrator comprising a vat having a discharge element at one end, a plurality of hoppers below the level of the discharge element and forming a series of water-chambers, and a screen forming a false bottom extending over the hoppers and extending below the water-level of the vat, said screen being provided with longitudinally-disposed bars spaced apart and having upwardlyconverging inclined sides, said bars forming a series of straight guiding-channels opening at the bottom into the hoppers and extending from the feed to the discharge ends of the devlce.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses. v

ANSEL H. PHINNEY. Witnesses:

GEO. H. HOLLISTER, AsA HOLLISTER.