US1292684A - Concentrator and amalgamator. - Google Patents

Description

E. B. BENNETT. CONCENTRATOR AND AMALGAMATOR.

APPLICATION FILED MAY 24. 1915.

Patented Jan. 28, 1919.

uun Innunun-nu I IN V EN TOR. 50st? .5 19511276! Z A T 'ORNE Y 1 1 TN ES SE5 STER P DENHHARDT Z QM! ERASTUS B. BENNETT, OF DENVER, COLORADO.

GONCENTRATOR AND AMALGAMATOR.

Specification of Letters Patent.

Patented Jan. 28, 1919.

Application filed May 24, 1915. Serial No. 30,075.

To all whom it may concern:

Be it known that I, ERASTUS B. BENNETT, a citizen of the United States, residing in the city and county of Denver, State of Colorado, have invented certain new and useful Improvements in Combined Concentrators and Amalgamators; and I do declare the following to be a full, clear, and exact description of my invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in combined concentrators and amalgamators for saving gold and other metals from ore, and the invention has for its object the provision of a construction for rapidly and effectively concentrating the ore and saving the valuable metals therefrom.

While the invention is primarily intended for treating ore carrying gold and for saving the gold from the same, it is obvious that other metals may be likewise saved from the ore.

For a more detail explanation of my invention, reference is made to the accompanying drawing in the following description.

In this drawing, Figure 1 is a side elevation view of the invention, partially in section; Fig. 2 is a longitudinal sectional view of the Ore sorting and feeding cylinder, and Fig. 3 is an enlarged detail sectional view of one of the riffles employed.

Corresponding and like parts are referred to in the following description and indicated in all the views of the accompanying drawing by the same reference characters.

Let the numeral 5 designate a triangular shaped tank, with the hypotenuse side 6 of the triangle forming the bottom of the tank sloping downwardly to the end or altitude side 7 of the triangle. This tank 5 is supported by means of a frame 8, upon which uprights 9 are secured and engage with the bottom of the tank. Uprights 10 are also secured to the frame 8, on opposite sides of the tank 5, the said uprights extending slightly above the upper edge of the tank, and having rollers 13 journaled in j ournaled boxes 14:, secured to the upper extremities of the said uprights 10. There are two of these uprights 10 on each side of the tank 5, the two uprights of each pair being suitably spaced apart, and braced in their spaced apart relation by means of transverse members 15. I

A hollow cylinder 16 is partially received in the tank 5, the said cylinder 16 being provided with journal disks 17 secured to its opposite extremities, which engage with the rollers 14 of the uprights 10, the said disks 17 being provided with annular grooves 18 therein which receive the rollers 14, thereby holding the cylinder 16 against longitudinal movement or against displacement. This cylinder is arranged near the rear extremity of the tank 5, and is what I will term the sorting and feeding chamber. One end of the sorting and feeding cylinder 16 is provided with a funnel-shaped opening 19, the said opening being enlarged as it extends into the cylinder, whereby the ore is spread out as it passes into said cylinder.

This opening 19 extends through the journal disk 17. The longitudinal surface of the sorting and feeding cylinder 16 is composed of mesh material, sufliciently fine to permit the sand, or metal carrying material to pass therethrough, while the coarse and waste material is prevented from passing through said screen, but is caused to pass through said cylinder and pass out of the latter at the opposite extremity thereof through an opening 20. A partition 21 is arranged within the cylinder 16 intermediate its inlet and outlet for the coarse or waste materials. This partition has an opening therein so that when the cylinder is revolved in the process of screening its contents, on every revolution thereof a portion of the waste materials will pass through said opening to the opposite side of the partition. In order to direct this material to the outlet opening 20, there is arranged a scoop shaped plate 23 which as the cylinder rotates will positively deliver this waste or coarse material on to the inclined wall 22 and ultimately to the opening 20. It will be noticed that the material forming the partition 21 extends through the opening 20, and on the exterior of said opening, the said material is flared outwardly in funnel-shape.

A sprocket wheel 24 is formed integral with one of the journal disks 17, and, over which a sprocket chain 25, passes, the said sprocket chain 25 also passing around a sprocket wheel 26, which is mounted upon the power shaft 27 This power shaft 27 is journaled on the frame 8, as shown at 28, in the same vertical plane of the axis of the cylinder 16. By operation of the power shaft 27, power is transmitted to the cylinder 16, through the sprocket chain 26, causing the said cylinder to revolve and sift the metal carrying material through the mesh into the tank 5.

The tank 5 is filled with water, the latter being constantly supplied to said tank, and the cylinder 16 is partially submerged in the water, whereby the ore in the cylinder 16 is washed during the revolving of the latter, thereby freeing the fine material and washing the latter out of the cylinder into the tank.

The inclined bottom 6 of'the tank 5 is provided with a lining of amalgam plates 29, secured to the tank as shown at 30. The upper, or rear extremities of each of these plates is turned upwardly at an angle, as shown at 31, while the lower, or forward extremities of said plates are curved to form a segment of a circle, as shown at 32, said curved parts of said plates forming mercury retaining receptacles. The lower extremities of the amalgam plates over-lap the upwardly extending parts 31 of the succeeding plates, as shown at 33. A water carrying pipe 34 is disposed above each of the mercury retaining receptacles 32, said pipes being provided with longitudinal openings 35 disposed in such a manner as to cause the water to be discharged through said openings in a forward direction at an angle to the vertical 7 plane. The openings 35 are relatively narrow, causing the water to be discharged therethrough in a thin sheet, thereby dissipating the material collected in the receptacles 32 and preventing said material from packing therein. These water carrying pipes 34 are all connected with a feed pipe'36, through which water is supplied to the pipes 34. As the concentrates :pass out of the cylinder 16, they pass over these amalgam plates 29 and through the receptacles 32, the gold being collected on the amalgam plates and in the said receptacles. At the lower corner of the triangular tank, a longitudinal opening 36 is provided for the water and material to pass out of the tank and over additional amalgam plates, or other treating apparatus 38.

The tank 5 is provided with a partition 39 therein, near the altitude end of the tri angular tank, forming a water pressure chamber between said end and said partition, the said chamber being designated 40. A longitudinal opening 41 is provided at the lower ed e of said artition 39 which 0 ening is controlled by a vertically adjustable gate 42 to regulate or vary the size of the said opening. l Vaste cocks '43 are set in the altitude end of the triangular tank 5 at diflerent elevations, whereby the water level in the chamber 40 maybe varied by opening and closing said waste cocks. The partition 39 serves to hold suiiicient quantity of water in reserveto fill the tank 5 to the top of said partition, the surplus water flowing over the upper edge of said partition into the chamber 40, and, of course, will fill the chamber 40 when all of the waste cocks 43 are closed. By opening any desired waste cook 43, the water in the chamber 40 will be lowered to the level of said opened waste cock, according diminishing the pressure in varied without departing from the spirit of my invention or the scope of the appended claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent is: 7

1. An ore treating machine, comprising a triangular shaped tank, the hypotenuse side of which is inclined and forms the bottom of said tank, means in said tank in relation to said inclined bottom for treating-ore, a partition in said'tank adjacentto the altitude side of the latter forming a compart ment in said tank between said partition and the altitude wall, said partition having an opening therein below its bottom edge estab lishing communication between said tank and said compartment, the altitude side of said'tank also having an opening therein at the bottom of the tank, and the altitude side of said tankhaving means at "varying elevations for regulating the quantity of water contained in said compartment, the said partition being of less height than the side walls of said tank.

2. A concentrator, comprising a water containmg tank, one end of said tank being provided with a relatively narrow transverse opening adjacent the bottom of said tank,

the bottom of said tank being downwardly inclined to saidopening, a partition in said tank of less height than the side walls of the tank forming a compartment therein between one end of said tank and said partition, said partition having an opening therein between its bottom edge and the bottom of'the tank establishing communication between said tank and said compartment, means in said tank for treatin ore, means for feeding ore to said tank, an means communicating with said compartment at different elevations for regulating the volume of water adapted to be contained in said compartment.

ERASTUS B. BENNETT.

Witnesses PAULINE L. POWELL, J NO. G. POWELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

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