US220171A - Improvement in amalgamators - Google Patents

Description

3 Sheets-Sheet 1. P. PLANT.

Amalgamator. No. 220,171. Patented Sept. 30,1879.

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P. PLANT.

Amalgamator.

No, 220,171. Patented sept. 30,1579.4

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MFEIERS. PHcTu-LITHDGRAPNEH. WASHINGTON. D CA UNITEDSTATES PATENT Orrron.

PASCI-IAL P LANT, OF WASHINGTON, DISTRICT OF COLUMBIA.

`IMPROVEMENT IN AMALGAMATORS.

Specification forming part of Letters Patent No. 220, 171, dated September 30, 1879; application filed v August 2, 1879.

To all whom il may concern.' Beit known that I, PAsCHAL PLANT, of Washington, in the District of Columbia, have invented certain Improvements in Amalgainators for separating gold from ine quartz or earthy matters, of which the following is a speeiication.

The object of my invention, more particu- 'larly, is to secure the very line particles of gold, which often pass away with the tailings in the process of Washing, and b ecome waste. I, however, also provide for separating any heavy particles, which is a less difticult matter.

My invention consists in providing a series ot' steeply-inclined rfes carrying amalgamator-plates and having shallow mercuryrecesses, and in flowing the line gold-bearing substance with water through a peculiar feeding-sluice in small streams to the rittles, and over them, as I will ,nowv describe in detail by reference to lheaccompanying drawings, in which- Figure l is a vertical longitudinal section of my apparatus; `Fi'gi12",1.a,vertical transverse section on the line2.... t'Fi`g,.11.;. Fig. 3, a bottom-plan-view `of la partof mysluice Fig. 4, a plan view of that part of my sluiee by which VI save large particles of gold; and Fig. 5, a `-vertical longitudinal `section of 1the same on the line 5 5 of Fig. 4.

In a suitable frame, A, I mount the steep rifes B. At the -top of each-is a horizontal step, a, onto which the water and earthy matter drops from the sluice or feed-water box O above, where it spreads in a very thin stream, and flows down the ritlies, over amalgamator-plates b, and over the quieksilver, to

-, becontained in small amounts in the shallow recesses@ and finally falls into a waste-race underneath.

' My sluicefQ, as shown in Figs. 1, 2, and 3, has no provision forl catching large particles of gold,w'hicl1 will not usually be found in the'inepowdered ore; and :it consists of an ordinary box or waterway, except that its botto'm is corrugated longitudinally, as shown in section in Fig. 2, and provided with small -apertures in the bottom' of each channel, so as to deliver onto the horizontal step a of each rife.

Guards E, consisting of downwardly-projecting plates, either straight or curved, as shown in Fig. 3, direct the iow accurately to the steps.

In Figs. 4 and 5, I show boxes F under the front end of the sluice, which may be provided with st-rainers G and water-guard plates H, if desired, for catching any particles of gold having sufficient gravity to be thus separated.

It will now be understood that my plan of separating exceedingly tine or loatiug gold is to cause a low of fine earthy matter containing the same mixed with water in a stream so thin, down my numerous rifllcs, that the water shall have the slightest possible buoyancy for the gold, and not sufficient force to carry the gold away from the amalgamatiugsurfaces, with which, by the very thin stream em'ployed, it is brought in contact.

It will be perceived that I can supply' almost innumerable rites, lying against or resting over each other, and thus give great working capacity, although each single rifde receives but little ore, from which, however, it will extract the gold thoroughly.

The riftle-recesses should not be more than about one-eighth of an inch in depth or width, and should be filled flush with mercury, so

i tained.

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

The steeply-inclined rifes resting against or lying overeach other, forming a series, substantially as described.

2. In combination with a series of steeplyinclined riflies, constructed with tables a and notches c, a. sluice or feedwvater box provided In testimony that I claim the foregoing I with openings for delivering on the upper end have hereunto set my hand and seal this 17 th of each riile iu the series, substantially as deday of J uly, 1879. scribed.

3. In combination with the steeply-inclined rifies, the feed-water box provided with the longitudinally corrugated bottom, having Witnesses: small apertures along the same for suppl ying C. XV. M. SMITH, the series of riies, substantially as described. J AMES C. WARD.

PASCHAL PLANT. [L. S.]

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