US1366660A - Ore-separator - Google Patents

Description

E. B., 40m/??n ORE SEPAHATRQ APPLICATION man mma, 1. was.

Patented Jan 25,1921'.

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ORE SEPARATOR.

APPLICATION FILED MAR. I, 1920.

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E. S. HOOVER.

ORE SEPABATOH. APPLICATION FILED MAR. I, 1920.

Patnted "Jan, 25, 1921.

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UNITED yS'TA''ES m'ran'r OFFICE.

Encan. B. HOOVER, or WALLA wanna', Wasmneroir, Assreivoa or ONE-THIRD To JAMES w. nutrir, or waLLaWnLn/i; whereinGrou.k

ORE-separaron.

Specification of Letters Patent. Patented all. 25, 1921,;

Application filed March 1, 1920. Serial 'No. 362,301.

To all Loiomz' may conce/m:

Be it known that I, EDGAR B. HOOVER, a citizen of the United States, residing at Walla Valla, in the county 0f Walla `Walla and State of Vashington, have invented certainjnew` and useful Improvements in Ore-Separators, of which the following is a specification.

This invention relates to ore separators g and has for its objects to provide a Ameans for separating the more precious metals from the dross, the metal being contained in concentrates: I Y

A further obj ect is toprovide a means for removing the concentrates laterally without disturbing the whole, thus with less congestion to the. operation;

A further object is to provide a means for regulatingthe iineness of the concentrates:

A further obj ect is to provide a means for storing the concentrates and a cleansing medium together, the `cleansing medium keeping the concentrates in a yielding state and simultaneously providing a means for clean ing the removal mechanism.

lVith these and other nob'ects in view refcrence is now had to the accompanying drawings in which -v Figure 1 is a plan viewof the device-with part of the griddle removed; f

i Fig. 2 isa side and end elevation enlarged of the spraying device;

Fig. 8 is a partial longitudinal section;

Fig. l is a side elevation;

Fig. 5 is an end elevation with the frame and operating mechanism removed;

Fig. 6 is an end elevation ofthe device; and

Fig. 7 is an enlarged side elevation of the adjusting means.

Having reference to the drawings like numerals refer to like parts throughout and the numeral'1 refers to the frame of .the separator whichmay be of1 angle iron as shown or of any suitable material.

y Betweenthe two side pieces of the frame and attached thereto are curved riliies'f2,the supporting means 3 may or may not be integral with` the riiiies. l Y

The rimes, frame and griddle constitute the sluice" box with. the exception ofthe bottomwhich issupplied by an` endless apron VThe ril-lies., `frame and griddle form the subject matter of my former PatentA No.

1,317,790,and wil1 notbefurther explained.

This endless apron is made adjustable to the position shown by the dotted lines 6 in Fig. 5 by any suitable regulating means, such for instance, as that shown in Fig.. 7, and is mounted to travel beneath and in movable contact withV the curved riflies. It operates to withdraw the contents from the sluice bon laterally Vfromy the bottom there of and consists of a canvas or other yieldin belt 5 protected from 'wear by the strips r of leather or other suitable material which bear against the rifes.

The apron is carried and V10 respectively,.the roller 8 being movable for the purpose of adjusting the apron bythe above mentioned means shown in Fig. 7. l i

The contact Vbetween the apron and the riiiles is maintained at all times by the contact 'roller` 11, the roller being positioned below the yriflies in a manner to permit the apron to pass therebetween. y

Above the roller 8 (and its complemental part of the apron) Vis mounted a washing i or spraying means consisting of a pipe 12 having an apron 13 postioned 'adjacent to the orifices 14: with which the pipe is provided. The water is supplied from any convenient source and after passing through these orifices strikes the apron forming a spray which is directed against the endless apron and its uload of concentrates, the concentrates thusl loosened from the apron would naturally have a tendency to follow down the apron to the trough below'were it not for a rubber 15 which maybe in the shape of a scraper as shown or a revolving brush may be used, lin either case the `concentrates are deflected to fall upon the chute 16.

The chute 16 is attached to the shaft of the roller 8 by the yoke 17 which provides for independent adjustment, at the same time the chute is movable with the 4roller 8 and the apron by being so attached. The chute may be coated with .quicksilver to form an amalgam plate and is inclined with its lower end entering the trough318 with which it registers. f

TheA troughf18 is positioned about .the lowenapex of the apron Ias is plainly shown in Fig. 5 and has the dual purpose of containing water or other cleansing medium and also the concentrates which are nally deposited herein.

The water from the lspraying means isY continually renewing the water in'` the trough "and as the endlessA apronv in lits. travel'passes through the water, any concentrates stillV adhering thereto after passingthe spraying device and the rubber is re-y moved falling into the trough', the endless apron now continues thoroughlycleansed for its further operation. The .trough may carry quicksilver if desired to pick up the loose gold, in the event that gold bearing concentrates are being handled.

' Any meansV for operating the yseparatorV mayvrbe employed, the means shown consisting o a driving pulley 19 and chain belts K 20, with the usual sprocket wheels being deemed suilicient however. y

ln voperation the separator is set in motion by power from any lsuitable source and the ore 'bearing material placed in the sluice' b ox by shovel or other means. The griddle .ll-now operates'in one direction to stir the material and to pass thedross overthe rif-V f fles 2, permitting the concentrates to remain Y` inv theV bottom `against .the endless apron. Now it is obvious that the higher the roller .8 is positioned Vwith relation Vtothe side ofi Vthe sluice box the less concentrates will'follow, and as'the most.l valuable part of the concentrates are on thebottom, dueto its.

von the chute are finally delivered into the trough from whence they are recovered. v By amalgainating the chute much of the gold will be caught thereon,

Therwater in the trough through which.v

the apron travels keeps the concentrates in ayielding vstate and removes all `material from the apron.' A n All parts herein which conflict withother patents are expressly disclaimed. i

. Having thus described my invention, I` .claim-" f fk f "ilQInv an ore separator, a sluice box, con Vsisting of a `frame, 'a revolving griddle, and

curved ritlles attached to said Vframein oom- Vbination` (it h an endless apron; operable in movablecontact withsaid curved riffle's, and formin'gthe'bottom` of said sluice box, rollers Carrying said endless apron, a Vmeans for varyingthe amountof contactbetween said endless apron" and lsaid riilles, Va contact roller supporting said endlessa'pron against Saidv curved'v riles, ani'vadjustable washing means mounted above said endless apron andadj'ustable therewith, a means` for. removing the concentrates from said 'endless apron,a :chute positioned beneath said end-V less apron, a receiving trough, and a means.`

ing Vmeans mountedV Vabove said endless. Y apron on itsV discharge side and adjustable therewith, a means `for removing the concentrates from said endless apron, said means` being positioned to' guide said concentrates to a chute, an amalgamv chute po-k sitioned to receive 'the concentrates from kthe discharge side of said endless apron, a receiving trough positioned beneath said endless apron and said chute, and aV meansfor said revolvinggriddle.V n

3. In an ore separator, a sluice box, consisting `ofA a frame, a revolving griddle, curved riiies attached to said frainefin combination with'an endless apron positioned beneath said curved riHes and in movable operating said endlessapron and with it Vcontact therewith, and `forming the bottom ofsaid sluice box, adjustable rollers Acarrying said'endless apron, an adjustable washing Ameans Vconsisting of a spraying deviceV Ypositioned above saidendless apronv at its discharge side and adjustabletherewith, a means for removingV the concentrates from said endless apron, an inclined amalgam chute positioned to receive the'concentrates from said endless apron, with its lower end engaging a receiving trough, said receiving trough y positioned beneath said endless apron Vand aboutthe'lower extremity thereof, and a means for operating said endless apron and 'said revolving griddle.

4. In an ore'separator, ythe'coinbination off a sluice, box having a revolving. griddle, and an endlessiapron 'operably mounted beneath said sluice box to form thebottom thereoifa means for varying'ithe position of said endless' apron with respect to said sluice box, ,a means for removing the concentrate/s from said endless apron, a trough positioned beneath and in a 'manner to Yreceigve said apron said trough'being designed to' carry "water l wherewith 7 said apron is cleansed' in its passagetherethrough, anda means foroperating said ore separator. i

5.111 an ore separatonthe combination of a sluice' box having curved riiiies and a revolving griddle, and a means for withdrawing the contents laterally from the bottom of said sluice box consisting of an endless apron, said endless apron forming the bottom of said sluice boX, a means for regulating said apron to obtain a concentrate of e predetermined neness, e chute positioned below said endless apron and movable there- 5 with, a, trough positioned about the lower apex of said endless apron and to receive the lower end of said Chute, seid trough having the dual purpose of storing a cleansing medium for said endless apron and also lthe cencentrates, and a, means for operating ture.

EDGAR B. HOOVER.

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