US894632A - Gold separator and amalgamator. - Google Patents

Description

. PATENTED JULY 28, 1908. 0. H. HALL & J. ELDRIDGE. GOLD SEPARATOR AND AMALGAMATOR.

APPLICATION FILED FEB. 11, 1907.

ZZ I347? a @2 A NEY WITNESSES:

STAT-Es' PATENT OFFICE.

I cHARLEs H. HALL AND oHN- ELDRIDGE, OF ASTORIA, OREGON.

GOLD SEPARATOR AND AMALGAMATOR.

To all whom it may concern:

Be it known that we, CHARLES H. HALL and JOHN ELDRIDGE;01tiZeI1S of the United States, residing at Astoria, in the county of 'Clatsop and State of Oregon, have invented new and useful Improvements in Gold Separators and Amalgamators, of which the following is a specification.

Our invention relates to an apparatus which is designed to separate gold and other metals from associated sand, and generally to separate heavier from lighter substances by centrifugal action, and to simultaneously amalgamate such metals as are capable of amalgamation. I

It comprises combinations and arrangements ofparts and details of construction .which will'be more fully explained by reference to the which Figure 1 is an elevation and partial section. Fig. 2 is an elevation 'atright angles with Fig. 1. Figs. 3 and 4 aresections show ing modifications of the interior of the apparatus. I

1 re resents a frame-work upon which a vertica shaft 2 is journaled in bearings 34,

accompanying drawings, in

and driven at high speed'by a belt'on pulley. 5. Upon shaft 2 and revolving with it, is

mounted a spider 6 to which is bolted a cylinder 7 having in its inside surface "a number of grooves ,8 extending entirely around the cylinder, and these may, if desired, 'be divided at frequent, intervals by vertical artitions 9, the edges of which are set slightly back of those of grooves 8.

Grooves 8 are not necessarily, of the form shown; but may be made of any suitable shape, and there may also be a greater or less number than shown.

To the upper end of cylinder 7 is bolted a hood 10 having a cylindrical neck 1 1. Within hood 10 and also secured to shaft 2 is a conical disk 12 having a number of radial ribs 13, the outside edges of which extend beyond disk 12 and are turned off true and fitted closely to inside of hood 10 which is bored out to fit them. There may be a greater or less number of ribs 13 than shown, and they may be either strai ht or curved as best to suit the material being worked. Extending at an angle into the top-of neck 11 is a suitable trough or spout 14 for feeding material into the machine; or this may be a pipe leading from a centrifugal or other pump.

Around the lower end of cylinder 7, and

Specification of Letters Patent.

Application filed February 11, 1907, Serial No. 356,743.

Patented July as", 1908.

extending for some distance below it, is a sheet iron casing 15, the front half of which is hung by slotted holes 16 upon bolts 17 so as to be easily removable. Below casing 15 is a discharge spout 18 having its outer end restin'gon stop 20.

In operation mercury or an amalgam is fed into the machine at the top, and striking the ribbed disk 12, is'thr0wn outward-by cen- "trifugal action, and coming in contact with the curved inner'surface of hood 10, is gradually forceddownward, by gravity and the addition of more material above until it completely fills grooves 8. .Sand containing metal to be separated is then fed into the top of machine through spout 14, along with a stream of water, and is at once caught by ribbed disk 12 and spread by centrifugal action around the inner surface of hood 10, and radually forced downward over the mercury led grooves 8. The mercury, owing to its specific gravity, retains its position in grooves 8 only the heavier metals dis lacing or amalgamating with it, and the lig ter waste materials being forced downward and discharged through spout 18. The cylinder 7 may. be made slightly taper- 1ng.as in Fig. 3in order tofacilitate the flow of material through it; or the grooves 8 may be dispensed with altogether, as in Fig. 3-, and the cylinder lined with a1nalga mated plates 21 of various shape according to thelnature of material being worked.

Having thus described our invention, what we claim and desire to secure by Letters Patent is 1. In an apparatus for separating and amalgamating .metals, a hollow, vertically journaled, substantially cylindrical and revoluble barrel or chamber with annular horizontal grooves in its inner surface to retain mercury by centrifugal force, vertical parti conehaving a less angle than the hood, radial vanes fixed to the cone with their outer edges in close proximity to the interior of the hood, a source of su ply at the topof the hood, and a receiver a d discharge beneath the apparatus.

2. In an apparatus of the character de-' scribed, a substantially cylindrical barrel with an upwardly convergent superposed hood, with means to supply material thereto, In testimony whereof we have hereunto set 10 said hood and barrel having annular channels ourhandsin presence of two subscribing witof different depths, a cone within the hood nesses.

- having radial vanes whose edges are in close OHARLES H. HALL. roxnmty wlth the nterlor of the grooved hood, vertical intercepting diaphragms fit- JOHN ELDRIDGE' ting the grooves of the barrel, a removable Witnesses:

caslng inclosing the lower art of the barrel, JOHN H. SMITH,

and a receiving floor and ischargechute. A. M. SMITH.

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