US923116A - Method of recovering values from alluvial deposits. - Google Patents

Method of recovering values from alluvial deposits. Download PDF

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Publication number
US923116A
US923116A US32486906A US1906324869A US923116A US 923116 A US923116 A US 923116A US 32486906 A US32486906 A US 32486906A US 1906324869 A US1906324869 A US 1906324869A US 923116 A US923116 A US 923116A
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alluvial deposits
blade
values
recovering values
materials
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US32486906A
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Ole T Crosby
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C50/00—Obtaining minerals from underwater, not otherwise provided for
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers

Definitions

  • My invention has special reference to a method ofoperatingin alluvial deposits or other beds of a like nature containing valu- I able metals, as gold, for the purpose of recovering such values therefrom.
  • the primary object of the invention is to solve othelproblem of readily carrying on such operation without "necessitating the removal of great quantities of the worthless materials for subsequent treatment, and to this end I aim to concentrate within the deposit or "bed values contained therein and sure tokeep the particles of lesser density fronrbeing' caught said means.
  • numeral 1 and carried along by indicates ajmeans capable of being moved into a bed of materialsof the above described nature and beneath layers thereof successively, the saidmeans consisting of a which is somewhat less in length than a full convolution. Extending about the margin Specification of'Letters Patent.
  • tubular stem 5 Secured to blade 1 is tubular stem 5 to which power is conveniently applied through the medium of handles 8 to move the blade in the bed of materials.
  • This stem has communication with the passages in ridges 2 and is connected by means of a swivel coupling 6 with a conduit 7 leading from an air compressor 9.
  • the blade 1 is pressed downwardly and simultaneously rotated in the proper direction to cause it to enter the bed of materials, air at the same time passing along the stem and discharging through the orifices at against the materials above the blade, serving, as heretofore intimated, to keep the particles of materials of lesser density from being caught in the pockets or recesses of the blade.
  • the movement thereof is reversed causing it to take an upward course, thereby reworking the materials through which it passed on its downward journey.
  • the herein described method of obtaining valuables from alluvial deposits consisting in cutting the ground to be treated into spiral layers, injecting fluid into each layer as cut to separate the particles, collecting the gravitating valuable particles, and removing the so-collected particles from under the cut layers without removal of the latter.

Description

0. T. cnosxnr. METHOD OF REGOVERING VALUES FROM A LLUVIAL DEPOSITS.
- A.PP-LIOATI'0N rugs JULY g, 190?. 923, 1 1 6.
rammed May 25, 1909.
ms NORRIS PETERS 6a., WASHINGTON, n. c,
' substantially broad blade*of spiral form un runsrarns ra'rnnr 'rrion.
[OLE T. CROSBY, OF NOME, DISTRICT OF ALASKA.
i iE'rHon or'nncovname VALUES FROM ALLUVIAL DEPOSITS.
I To'aZZ whom it may concern:
Be'it known that. L Onn T. CnosBY, a citizen of'the United States of America, and a resident ofthe city of Nome, Alaska, have remove the same.
invented certain new anduseful Improvements in Methods of Recovering Values from Alluvial Deposits, ofwhichthe following is a specification. f
My invention has special reference to a method ofoperatingin alluvial deposits or other beds of a like nature containing valu- I able metals, as gold, for the purpose of recovering such values therefrom.
The primary object of the invention is to solve othelproblem of readily carrying on such operation without "necessitating the removal of great quantities of the worthless materials for subsequent treatment, and to this end I aim to concentrate within the deposit or "bed values contained therein and sure tokeep the particles of lesser density fronrbeing' caught said means.
- In the accompanying drawing I have disclosedin a single perspective view one form of an apparatus for carrying out the process, the same being illustrated in operation upon abed of materials. I f
Said apparatus forms no part of the present invention, the samebeing embodied in my application SerialNo', 324,870, filed July 5, 1906. 4 1
With reference tothe drawing, numeral 1 and carried along by indicates ajmeans capable of being moved into a bed of materialsof the above described nature and beneath layers thereof successively, the saidmeans consisting of a which is somewhat less in length than a full convolution. Extending about the margin Specification of'Letters Patent.
:Ap phcation filed July 5, 1906. Serial No. 324,869.
Patented May 25, 1909.
of the blade is an upwardly projecting ridge 2 and lying across its upper face are tubular ridges 2 provided with discharge orifices 4, the said ridges in connection with the blade forming pockets or recesses.
Secured to blade 1 is tubular stem 5 to which power is conveniently applied through the medium of handles 8 to move the blade in the bed of materials. This stem has communication with the passages in ridges 2 and is connected by means of a swivel coupling 6 with a conduit 7 leading from an air compressor 9. p
In operation, the blade 1 is pressed downwardly and simultaneously rotated in the proper direction to cause it to enter the bed of materials, air at the same time passing along the stem and discharging through the orifices at against the materials above the blade, serving, as heretofore intimated, to keep the particles of materials of lesser density from being caught in the pockets or recesses of the blade. After the blade has been inserted to the desired depth the movement thereof is reversed causing it to take an upward course, thereby reworking the materials through which it passed on its downward journey.
The above described process can be carried out with successful result in Working ocean beaches where the tide and turbulent state of the water render it impracticable to attempt to remove great quantities of material for subsequent treatment.
Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States of Amen ica, 1s
The herein described method of obtaining valuables from alluvial deposits, consisting in cutting the ground to be treated into spiral layers, injecting fluid into each layer as cut to separate the particles, collecting the gravitating valuable particles, and removing the so-collected particles from under the cut layers without removal of the latter.
Signed at Seattle, lVashington this 23 day of June 1906.
OLE T. CROSBY. \Vitnesses S. D. WINGATE, ABLITA ADAMS.
US32486906A 1906-07-05 1906-07-05 Method of recovering values from alluvial deposits. Expired - Lifetime US923116A (en)

Priority Applications (1)

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US32486906A US923116A (en) 1906-07-05 1906-07-05 Method of recovering values from alluvial deposits.

Applications Claiming Priority (1)

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US32486906A US923116A (en) 1906-07-05 1906-07-05 Method of recovering values from alluvial deposits.

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US923116A true US923116A (en) 1909-05-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5421109A (en) * 1994-01-31 1995-06-06 American Oilfield Divers, Inc. Underwater site clearance sweep apparatus and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5421109A (en) * 1994-01-31 1995-06-06 American Oilfield Divers, Inc. Underwater site clearance sweep apparatus and method

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