US337535A - Amalgamating apparatus - Google Patents

Description

2 Sheets-Sl1ee't 2.

(No Model.)

J. THIELSEN, E. L." GIROUX &H. W. DILG;

AMALVGAMATING APPARATUS.

No. 337,535; Patented M r. 9, 1886."

UNITED STATES PATENT OFFIo JULIUS ED ARD THIELSEN, EUGENE LOUIS emoux, AN HENRYWIILLIAM a i DILG, or" Ponr AnD, OREGON.

AMALGAMATI NG APPA RATUS.

SPECIFICATION forming partof Letters Patent N0. 337,535,8ated MarchB, 1886. Application filcdOctoher 29, 1885. Serial No.1s1,270. (No model.)

1T0 azz whom it may concern:

drical screen, 13, which preferably consists of Beitknownthat.we.JUI.IUs EDWARD THIEL two metallic rings, a b that support a wiresnn ,EuchreLoulsGi iouigand HENRY \VIL .cloth covering of suitable mesh to pass the LIAM DILG, citizens of the UnitedStates. re} gold-bearing sand. One end ot' the cylindri- Siding at Portland, in the. county of Multnocal screen B receives thespout or lower month, V

mall and State of Oregon, have invented cerc, of'a hopper, 0, through which the ore is .tai n new and useful Improvements in Ainalfed. This ,l opper may he made in any apganiating Apparatus; and we do hereby deproved form, of wood or. metal, as preferred, clare the following to be a full, clear, and exand is so arranged that its mouth a enters the 1 act description of the invention, such as will cylindrical screen'at a pointbelow its axis, as 6c enable others skilled in the art to which it apshown in Fig. 2. By referring to this figure pertains to make and use'thc same. it will also be seen that the wire-cloth projects Our invcntioi'i relates to an improved appabeyond the ring a at that end of the screen, ratus for separating the precious inctalsfroin and so receives the mouth 0 of the hopper, their ores," especially for saving and ainalthereby preventing any of the unscparated gamating placer gold. v 8 material from falling outside of the screen.

The invention consists in the combination, The hopper G and the axis or shalt D'of the. withasluiceway,of apairainalgamatorformed screcnB are supportedby the sluice-boxA with inlet and-exit aprons and semicircular in any convenient manner, so that the screen 20 side troughs for retaining the gold and ainalwill occupy a transverse position in thesluice gram, while allowingthe water and sund 'to es box with the hopper C at one end. cape. i y r \Vithin the cylindrical screen B, and 'exit further consists in the combination, with tending i'roinend to. end is a WOIlThd; that is i such slniceway and pan-ainalgan'iator, ofa fastened] to the wirecloth covering and to 25 cylindrical rotary screen and a series of rifflcs,. therihgs a and b at each end. This worm and, iinally, inccrtain details of construction, propels or-conveys through the cylinder B, as nshercin-ai'ter more fully set fortlnand particu' the latter rotates. all stones, gravel, and unlarl ilclincd by the claims at the end ofythis productive material that is too course to pass specification. 7 i the meshes oi the wire-cloth. The unpro- In Lhcanncxed drawingsillustrating thein ductive material and the line productivesand 8o vcution, Figure 1 is a side view of our in arethusreadilyseparated. lfdesirethaspout, i proved mnalgainating apparatus, partlyinsec- E, may be attached to the sluice-box at the Lion. Fig. 2 is a sectional side elevation of a dischargeend of the cylindrical screen B, as rotary cylindrical screen with inclosed worm shown in Fig: 8." 35 and adjacent orehopper. Fig. 3 is aperspcc- To the exterior of the cylindrical screen we tivc view of our improved pan-alnalgainator. prefer to attach a. number of narrow longi- 1' ig.14 is a plan view of the same. Fig. 5 is a "tudinal strips, 6 e, of sheet-iron or other suit-v vertical longitudinal section of the pau-amalable material. These strips will prevent the gamator on the line w m of Fig. 4. Fig.6 is a sluice-box from being choked by sand falling o horizontal section of the pan-auralganiator on through the screen, and will give the sand at the line y 1'; of Fig. 5. Fig. 7 is a sectional strong forward motion as it passes the meshes view of one of the rifllcs. Fig. 8 represents of the screen. It is obvious that thc strips e a 'niodification in the manner of rotating the be may be made perfectly plain and straight, or cylindrical screcni Fig. iiids avcrlical transthey may be given any desired" shape and I 5 verse section of the pan-amalgamator. on the width toinoifc perfectly ht them for serving line z zof Fig. 5. i I I also as paddles to assist in rotating thescrcen. Referring to' these drawings, the letter A Instead or rotating the cylindrical screen 13 designates a sluice-box or sluiccway of suitaby means of paddle-strips e c, it may have its ble construction. At a convenient point in shaft connected by bcltingfto the shaft of a v 50 the sluice-box A is arranged a hollow cylinpaddle-wheel, F, located in the sluice-box, as. :00

, at the exit end is an upward and outward inshown in Fig. 8. In this case the cylindrical rotary screen B may or may not be provided with the strips'e, as preferred.

Located in the sluiceway, at a suitable point below the revolving screen, is a pan-amalgamator, G, the construction of which is clearly shown in Figs. 3, 4, 5, and 6. This amalgamator may be made of copper, eastiron, or other material, and consists of a dish or pan, g, provided with a communicating. semicircular trough, h, on each side. At the inlet end of the pan is a metallic plate or apron, z, and

clined apron or sieve, is, composed 0F amalgamated steel wire-cloth of finemesh. The aprons i and In are supported by vertical longitudinal flanges m m, one on each side of the pan. These vertical flanges cross the side troughs, h h, where they intersect the pan, as shown in Figs. 3 and 4, and are provided with suitable openings for the passage of sand'and water.

A transverse wall, 0, extends across the pan 9 beneath the inner edge of the wire apron k, as shown in Figs. 5 and 6.. This end of the pan 9 can therefore communicate with the side troughs, h it, only through the wire-niesh apron k, while the opposite end of the panv communicates directly with the side troughs which open into said pan beneath the inletapron t. The width of the amalgamatingpan corresponds with that of the sluice-box;

but the bottom of its main portion is one or two inches lower, so as to forma depression for receiving and holding the amalgam. The bottoms of the troughs h h are raised from 'halfan-inch to an inch above the bottom of the pan-body. They communicate with the pan by openings as large as the size ofthe troughs \will permit, saidopenings being, the full width of the troughs, and extending from their bottoms to the under sides of the aprons. To correspond with these openings, the bottom of the amalgamator, under the aprons and opposite said openings, is raised to a level with the troughs. It will be seen that the apron 11 and flanges 'm m protect the openings of the troughs at the inlet end of the pan,

while the transverse wall 0 protects the open ings at the opposite end. \Vhen the pan G is in position, the inlet-apron i ison a level with the bottom of the sluice-box. The exit-apron k has its inner edge very nearly on a level with the inlet-apron, but gradually rises to- -ward the outlet of the pan, as shown in Fig; 5. Beneath each apron isatriangular metallic block or casting, p 1), preferably made hollow and filled in with concrete or plaster- ,of-paris. These-blocks are arranged with their pointed ends toward the pan, as shown in Fig. 6, and serve to induce acurrent through the troughs h and pang in the direction of the arrows. The block 1) beneath the inlet-apron '5 extends from the bottom of the raised portion of the pan to the under side of said apron, but the block 19' does not extend quite to the under side of the wire exit-apron k, and has gam being forced out of the pan 9 and into the sluice by the force of the current and the weight of the material received over the inletapron. It will be seen that as the water and sand flow from the pan 9 over the steel-wire apron k the latter will permit the passage downward of water and amalgam, while excluding coarse sand, and the water and amalgam thus admitted through the wire-mesh apron will be deflected to each side by the sloping top of the block 1), and will flow back into the pan 9 through the side troughs,h h, the sides of the block 1) beneath the inletapron serving to direct/the current into the pan. A gentle revolving current is thus induced, which facilitates the settling and retention of "the amalgam.

In order to subject the escaping sand to the further and repeated action of an amalgamating agent, and more particularly to catch and Save any fioat-gold or any amalgam that may have passed across the pan G, one or more riifies, H, are arranged in the sluice-box, at a convenient distance below the pan-amalgamator and at suitable intervals, as shown in Fig. 1. These riflles are in the shape of pockets, composed of cast-iron or copper, and 'each is provided with an amalgamated partition, K, whichreaches towithin an inch or two of thebottom of the riffie, and in that way divides it into two chambers. In the bottom of each riffle isplaced a few pounds ofquicksilver. The partitions K are supported in the riifies in any suitable manner, so as to he adjustable, as required, with relation to the quantity of quicksilver or amalgam in the riflie.

The sand and water enter the riflle at s, and,

after having been subjected to the action of the amalgamating agent, the waterand unproduetive sand leave the riffle at t, as shown in Fig. 7. An openi g, ,L, in the bottom of the riflle alfords a means of drawing otf the amalgam at pleasure by simply withdrawing the plug that closes said opening.

It is apparent that by the peculiar construction of our pan-amalgamator, with its aprons,

semicircular side troughs, and revolving currents of water and amalgam, a large saving of gold will be effected, especially in connection with the rifiles and the rotary cylindrical screen.

. What we claim as our invention is- 1. In an amalgamating apparatus, the combination, with a sluice-box, of an amalgamating-pan having aprons i k and semicircular side troughs, h h, substantially as described.

2. In an amalgamating apparatus, the combination, with a sluieeway, of an amalgamat ing-pan having a vertical wall, 0, at one end, side troughs, h h, communicating .with the body of said pan, metallic inlet-apron and wire exit-apron 7c, substantially'as described.

3. In an amalgamating apparatus, the combination, with a sluiceway, of an amalgamating-pan having side flanges, m m, vertical transverse wall 0, semicircular side troughs, h h, aprons 'i k, and triangular blocks 19 p, 10- cated beneath said aprons, substantially as described.

4'; In an amalgamating apparatus, the com- I bination, with a sluiceway,-0f an amalgamating-pan having a deep body, 9, with communicating side troughs, h h, of less depth,'and an inlet apron or plate, 7:, and exit-apron or sieve k, substantially as described. I

--5. In an amalgamating apparatus, the conibination, with a sluice-box anda pan-amalgamator hayi mg a wire exit-apron, k. of a riffle, H, provided with an adjustable partition, K, substantially as described.

6. In an anialganiating apparatus, the combinationof the sluicebox A, having riffles H,

hopper G, and the amalgamating-pan G, substantially as described.

In testimony whereof we afiix our signatures in presence of two witnesses. 3

JULIUS EDWARD THIELSEN.. EUGENE LOUIS GIROUX. HENRY WILLIAM DILG. Witnesses:

H. THIELSEN, WALLACE MOUNT.

Correction in Letters Patent No. 337,535.-

It is hereby certified that the residence of the patentees in Letters Patent No. 337,535, granted March 9, 1886, upon the application of Julius Edward Thielsen, Eugene Louie Gironx, and Henry William Dilg, of Portland, Oregon, for an improvement in Amalgamatin g Apparatus) tras erroneously written in the grant Portland, Maine, whereas said residence should have been written Portland, Oregon; and that the said Letter-e Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Ofiice.

Signed, countersigned, and sealed this 20th day of April, A. D. 1836.

[SEAL] H. L. MULDROW,

Acting Secretary of the Interior. Uountersigned:

M. V. Momraeunnr,

Commissioner of Patents.

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