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Патент USA US2133271

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Oct. 18, 1938.
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F. w. BRINTNALL
APPARATUS FOR SEPARATING GOLD
‘
Filed Dec. 16, 1935
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INVENTOR
,Brz'xZnaZZ.
'
ATTORNEY.
Oct. 18, 1938.
|:_ w_ BRlNTNALL
2,133,271
APPARATUS FOR SEPARATING GOLD
Filed Dec. 16, 1935
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ATTORNEY.
Oct. 18, 1938.
F. w. BRINTNALL
2,133,271
APPARATUS FOR SEPARATING GOLD
Filed Dec. 16, 1935
4 Sheets-Sheet 5
I
‘
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BY,
INVENTOR.
.Brz'ni‘nall.
y
W
ATTORNEY.
Oct. 18, 1938.
F. w. BRINTNALL
2,133,271
APPARATUS FOR SEPARATING GOLD
Filed Dec. 16, 1935
4 Sheets-Sheet 4
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7 '
INVENTOR.
Fizz/‘f
ll’?rz'kirzazl
BYM _.
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A TTORNE Y.
‘Patented Oct. 18,
1938
2,133,271
UNITED STATES PATENT OFFICE
2,133,271
-
APPARATUS FOR SEPARATING GOLD
Frank W. Brintnall, Detroit, Mich” assiznor to
Ulysses S. Bratton, Jr., Detroit, Mich.
Application December 16, 1935, Serial No. 54,781
23 Claims. (Cl. 209-12)
This invention relates to improvements in ap
paratus for re?ning gold.
‘
Among the objects of my invention are to pro
vide an improved apparatus for reclaiming gold
whereby the gold bearing deposits will give a
higher yield of gold at less cost than heretofore;
to provide for greater efficiency in the separa
tion of the gold from the gold bearing “dirt”; and
to make possible the operation at a pro?t of
placer gold deposits of relatively low gold con
tent which would ordinarily be regarded as be
ing unpro?table for commercial reclamation for
gold.
A further object of my invention is to provide
an‘improved gold reclaiming machine, preferably
of a relatively light weight portable nature,
which is rugged and wh ich is capable of efficiently
handling a large quanti ty of the gold bearing dirt
in a relatively short interval of time.
An additional object of my invention is to pro
20
tion in the preferred form of a portable machine
or unit, although it will be understood that sta
tionary units may be employed if desired. This
unit comprises a main supporting frame structure
A having a fabricated base Ill, uprights I l, top Ol
I 2 and appropriate cross-bracing at l3, l4 and
at other desirable locations. Frame A carries
support wheels l5, which may be of a type ,suit- ‘
able for operation on a track IS,
The gold bearing ore or dirt to be separated 10
is ?rst screened or otherwise treated in a well
known manner to bring the dirt down to a pul
verized form, water being preferably introduced
to the dirt during the screening so that the pul
verized dirt will readily ?ow throughv a hose I‘! 15
to the suction side of a feed pump B, preferably
of the centrifugal type for pumping the mixture
of water and dirt upwardly through a pipe 18 for
discharge into the hopper C. Pump 13 is oper
ated under power by any suitable prime mover 20
vide an improved apparatus for handling and op
as the electric motor l9 where a source
erating on the gold bearing dirt for reclaiming , such
of electricity is available.
the gold with improved e?‘iciency.
Hopper C is ?xed to the-upper end of a shaft
- Further objects and advantages of my inven
conduit 20 rotatably supported through a bearing
tion will be more apparent from the following 2| carried by a bracket 22 mounted on the brac
description of one illustrative embodiment of the ing l3. Surrounding shaft 20 and ?xed thereto
principles thereof, reference being had to the is
a bevel gear 23 engaged by a bevel pinion 24
accompanying drawings in which:
?xed to a drive shaft 25 operated under power, '
Fig. 1 is a side elevational view of my improved as by the motor 26. The pinion 24 also drives
30 machine.
Fig. 2 is an enlarged sectional elevational view a second bevel gear 21 ?xed to the upper end 30
‘of a hollow shaft 28 surrounding shaft 20 for
of the main or primary separator portion of my rotation relative thereto in an opposite direction.
machine.
The shaft 28 is likewise supported on bracket 22
Fig. 2A is a detail sectional plan view taken by a bearing 29.
7
along line 2A-2A of Fig, 2.
Fixed at 30 to the lower end of shaft 28 for 35
Fig. 3 is a sectional plan view taken as indi
rotation therewith is the upper housing member
cated by line 3—3 of Fig. 1. _
Fig. 4 is a detail sectional view taken along line 3| ‘which is ~a part of the outer separator spiral
D, the upper end of member 3| being provided
4—4 of Fig. 3.
Fig. 5 is a further detail sectional view taken with an annular trough 32 adapted to receive a
transversely of the Fig. 4 structure just below the supply of water from one or more supply pipes
amalgamating plate.
33, 34, the water supply being regulated by
Fig. 6 is an elevational view of a typical element
of the outer separator spiral as seen in Fig. 2.
Fig. 7 is an enlargedgsectional view of a por
tion of one of the Fig. 6 elements, the section
valves 35,
being taken as indicatedby line 7-1. of Fig, 2.
Fig. 8 is an enlarged sectional elevational view
of the secondary separator portion of my ma
chine.
.
Fig. 9 is an enlarged detail sectional view ‘of a
typical part of the secondary separator portion,
the view being taken as indicated byline 9—3 of
Fig. 8.
55
Y
.
In the drawings, I h ave
illustrated my inven
,
Drivingly secured to the lower end of shaft
conduit 20 is the inner separator spiral E, formed
of a double spiral core 36, 31. Each spiral core 45
has a spiral groove 38 in its under face for re
ceiving a spiral water supply pipe 39, each pipe
having an upper ?exible supply extension 40 lead
ing to a funnel portion 4| of an annular trough
42 supplied with water by pipes 43 and trough Cl
32. The trough 42 is‘secured to conduit 20 and
rotates in one direction therewith while the hous
ing member 3| which is secured to shaft 28 ro
tates in the opposite‘ direction by reason‘ of a
9,188,271
2
As a further means of holding the overlapped
sides of adjacent pans 48 in position during op
eration of the machine, certain of the plates 48
The cores 36, 31, present a passage below con
duit 28 for receiving the material therefrom, this engage companion slots formed at the overlap,
passage progressively tapering downwardly as an the tongues 49a of such plates serving to connect
inverted cone so that the material discharged the adjoining pans 46.
The water supplied to pipes 33, 34 is pumped by
from conduit 28 will be progressively caught by
the gold separating means carried by the cores as a pump 58 through the delivery pipes 5|, 52, these
pipes having further pairs of supply branches
will be presently apparent.
\
53, 54 and 55, 56, respectively regulated as to 10
Projecting
outwardly
and
downwardly
from
10
water
?owing therethrough by valves 51 and 58
cores 86, 31 are the rods 45, suitably spaced cir
cumferentially around the cores and threadedly for purposes which will be presently apparent.
engaging the cores at 45a. for supporting the The supply of water to pump 58 is indicated by a
plates or pans 46, which form a spiral guideway hose 59 preferably ?exible to permit the desired
degree of movement to the entire machine.
15
15 for the dirt. These pans have their inner ends
drive received from the bevel pinion 24 to a bevel
gear 21 fixed to the upper end of shaft 28.
slidably engaged beneath the outwardly projecting
ends of core plates 45b secured at 45c to the cores.
Plates 45b preferably project inwardly beyond the
associated core to catch the material discharged
20 from conduit 28. As a protection against wear,
the inner portions of plates 4511 may be provided
with a hard rubber coating 45d, vulcanized to the
upper surface of these plates. Each of the pans
. The lower end of the spiral E has its cores 36, 81
terminating in a spindle 68 which is recessed at 6|
to receive the upper end of a plug 62 which ro
tatably centers the spiral through a bearing 53.
The lower end of the plug is ?xed within the 20
upper end of a stationary pipe 64. The plug has a
laterallyprojecting annular ?ange 65 provided
with a pair of diametrically opposite upwardly
46 has along one side thereof one or more eyelet opening pockets 66 adapted to receive a roller 61
brackets 41 adapted to readily receive a rod 45, journalled on a pin“ for rotatably supporting 25
this side being overlapped by the next adjacent‘ the spiral E at its lower end.
During rotation of spiral E, the latter is
pan, thereby providing a continuous outwardly
and downwardly extending spiral surface from preferably vibrated vertically to assist in the
the cores 36, 31. The pans are held from falling
80 downwardly and outwardly from rods 45 by the
abutment screws 48 threadedly engaging the
outer ends of the rods, the heads of these screws
engaging a bracket 41.
Each of the pans 46 is provided with means
85 for separating and collecting the gold from the
dirt as it falls down the pans while washed by the
water which was mixed with the dirt entering
hopper C and which is added by the spray received
from pipes 39, the latter for this purpose having
40 suitable nozzles or openings directed downwardly
to wash the dirt as it is introduced to the inner
ends of plates 4511. This separating means, in the
illustrated embodiment of my , invention com
prises a plurality of amalgamating plates or
45 ri?ies 49 secured to the upper faces of pans 46 and
arranged in staggered relationship with one an
other to battle the travel of the dirt as it moves
separating action of the gold as the dirt is washed
over the plates 49. To this end the spindle 68 has 30
an annular cammed face 68 in engagement with
rollers 81, the cam faces being arranged to recipro
cate or vibrate the spiral. In order to permit this
vibration- while driving the shaft conduit 28, the
latter has a lower shaft portion 18 drivingly con 35
necting shaft 18 with spiral E. The lower end of
shaft 28 has an annular series of drive keys 1|
slidably fitting the keyways 12 of shaft portion
18, the keyways being open upwardly and being of
sufficient length to provide adequate clearance
below keys 1| to accommodate the aforesaid
movement.
Referring now to the outer spiral D, the hous
40
ing member 3| is formed with a lower annular '
trough 14 adapted to continuously receive a sup 45
ply of water from the aforesaid branches 53, 54.
This trough has a series of circumferentially
downwardly and outwardly of the pans 46.
spaced downwardly extending outlet pipes 15, each
gold separating action, these plates are prefer
88 of smaller diameter than hole 19 whereby each
element 18 may be vibrated as will presently be
apparent. The pins 88, which are of any suitable 60
type for convenient removal, are mounted between
?anges 8| of the housing member 3| and ad
The pans 46 revolve with spiral E as a part communicating through a ?exible detachable hose
thereof so that the dirt does not fall radially 16 with a spirally extending pipe 11 secured to 50
the inner wall of a spiral element 18 of the outer
along the pans but rather takes a path intermedi
spiral D. These elements are contiguously ar
ate a radial and circumferential travel, the amal
ranged
for relative vibration and removal and
‘ gamating plates being preferably arranged to lie
across this path of travel. These amalgamating ‘they together form a cylindrical rotating struc
55
ture as best shown in Figs. 1 and 2.
55 plates are adapted to collect the relatively heavy
Each
spiral
element
‘18
has
an
opening
19
at
its
gold particles while the water washes the dirt
over these ba?le plates. In order to facilitate the upper end for supporting such element by a pin
ably copper coated with mercury, it being recog
60 nized that gold has an amnity for mercury.
Each amalgamating plate 48 is preferably
readily attachable and removable to a pan 46 by
inserting the inner tongue portion 49a through
a pan slot 4917 so that the tongue lies beneath
65 the pan with the shank 49c holding the plate 48
in position. Assembly and removal of the plate
maybe readily accomplished by tilting the plate
as will be readily understood. Each plate 48 has
a gold collecting pocket formed by the face 48h
70 bounded by upstanding sides 49d and end 488,
the supporting feet 48! preferably disposing the
outer edge of the pan substantially parallel to
jacent spiral elements 18 overlap each other at the
stepped engaging sides 82 which preferably have
a clearance with each other in an increasing de
65
gree toward the lower ends of the spiral elements.
Each element 18 has an inwardly projecting
spiral trough 83 (see Figs. _6 and 7) arranged be
low the associated spiral water supply pipe 11
having spray nozzles or holes 84, the floor of each 70
trough 83 having the spaced gold collecting rif
?es 85 while the side walls are connected by a
the base of the machine. Each pan may also have
series of removable gold collecting elements 86,
one or more gold collecting pockets 489 depressed
below the face 48h.
lar in function to the aforesaid plates 49 of the 75
preferably amalgamating plates generally simi
a
1
>
"
2,188,971
_ inner spiral E. In order to increase the gold col
lecting capacity of these plates, they are formed
with a plurality of step-like undercuts 86a, hav
ing concave gold collecting pockets 81. These
plates are mounted to position, their lower ?anges
being approximately parallel with the base of
the machine.
4
‘
-
3
drum 88. This casing centrally receives the pipe
64 which extends from base 93 to plug 62 and
conducts
water
supplied
thereto
through
branches, 66, 66 for radial discharge to the spray
pipes 95 having outlets 96 directed toward the
spiral slides 91 (see Figs. 8 ‘and 9) .-
:
These spiral slides 91 receive the dirt and water
The spiral elements 18 have theirtroughs 83 ‘mixture from’ troughs‘ 88, the dirt falling by'
progressively increasing in width in the down
gravity down the spiral slides as additional water
10 ward direction and disposed for, rotation closely
from pipes 95 is sprayed on the slides. The slides 10
adjacent the outer peripheral edges of. the pans v9T
are preferably multi-ply burlap which will
46 to receive the water and dirt thrown from the collect the gold particles as the dirt is washed over
pans as the latter rotate in the opposite direc a and through the burlap.v This burlap is remov-v
tion. As the dirt washes over the ri?les 85 and
ably suspended between casing. 94 and pipe 64
15 the amalgamating plates 86 during its travel
by suitable fastening means 98, 99. .
15
downwardly in the spiral troughs. gold which
escapes collection by the amalgamating plates of
the inner spiral is separated and collected by the
20
outer spiral at 85, 86a and 81.
While I do not limit my invention to any par
ticular speeds of rotation of the inner and outer
separators E and D, where used in combination,
I prefer to rotate these separators relatively slow
ly in equal opposite speeds of about 45 R. P. M.
The speed’may of course vary according to the
quality and quantity of the gold bearing dirt be-'
ing treated, as' well as by reason of other factors.
During rotation of the outer spiral separator
D, the elements 18 thereof are preferably rela30 tively vibrated back and forth about the respec—
tive axes of pivotal support provided by pins 80,
and these elements are additionally vibrated in
wardly and outwardly, these vibrations being
The casing 94 is supported intermediate its
length by a spiral‘ ?oor I88 extended outwardly
from pipe 64, this ?oor having a'series of radially
extending gold‘collecting ri?les llil spaced‘ be
tween steppedamalgamating plates I82, similar
to plates 86, the plates I02 being removably
mounted between casing 94 and pipe 64 beneath
the slides 91 to catch the dirt washed there
through. The pipe 64 thus cooperates with ?oor
I88 and casing 94 to form a spiral gravity dirt
conveyor which is trough-like at cross-sections
along its length.
a
'
I
"
'
If desired, in the interests of conserving the
consumption of water, the residue discharged at
the bottom of the separator F may be returned 80
to the water pump 58 or to the pump B for re
circulation with the material entering the sys
tem at pipe I‘! as will be readilyunderstood.
‘In the operation of the process and machine as
so that movement at their upper pivoted ends is '
r a whole, the dirt and water mixture is delivered
relatively small. The aforesaid progressively by pump B to hopper C for discharge. down
varying clearance will accommodate these rela
wardly through shaft conduit 28 to the pans 46
applied to the lower ends of the spiral elements
tive vibrations between adjacent spiralelements
and also facilitate ready outward removal of the
spirals for cleaning off and salvaging the gold
from the riilles 85 and amalagamating plates 86
by removing pins 88 and permitting each spiral
element to slightly drop accompanied by slightly
“skewing” the spiral element to clear the ad
jacent elements.
_
In order to rotatably center the lower end of
the outer spiral D and to impart the aforesaid
vibrations to the spiral elements thereof, I have
provided the upper end of the stationary drum
50 88 of the secondary spiral separator F with a
plurality of idler guide rollers 89 spring pressed
at 98. These rollers maybe readily outwardly re
tracted when it is desired to remove or install
any or all of the spiral elements 18. Each ele
55 ment 18 has one or more cams 9| formed on its
inner face adjacent the lower end thereof, each
cam having an inclined face for successive en
gagement with. a plurality of circumferentially
spaced rollers 92 rotatably journalled on ?xed '
60 axes angled parallel with the faces of cams 9|.
of rotating spiral E. This spiral, and also spiral
D, preferably rotates in a direction opposite to
that experienced with an ordinary spiral drill so 40
that the dirt ?ow outwardly and downwardly on
pans 46is retarded to facilitate the gold separa
tion and accumulation on plates 49 while washed
by water sprayed from pipes 99.
The dirt falling from pans 46 is caught by the £6.
spiral troughs 83 ofthe oppositely rotating outer '
spiral D, the gold being separated and collected
by riilles 85 and plates86 while the dirt iswashed
from pipes 11.
,
'
During the rotation of the spirals D and E, the
material treated thereby is continuously agitated, 50
cams 69 vibrating the spiral E and cams 9| vi-'
brating the spiral elements 18 of spiral D. '
The residue discharged from spiral D' falls by gravity down and through the burlap slide 91 of 55
r the ?xed secondary separator F, water sprayed
from pipes 95 assisting in the collection of gold
by rif?es MI and plates I82.
After the machine has operated ‘a sufficient
length oftime depending on the gold content of 60
progressively engage rollers 92 to impart the‘ the dirt being treated-the spiral elements ‘I8 are
aforesaid compound vibrations to the spiral ele-' removed for collecting the gold.. Convenient ac
ments 18.
cess is thereby obtained for removing trays 46 for
65
I prefer to provide further means for acting on the same purpose. The burlap 97 is then burned.
During rotation of the outer spiral D, cams 9|
the material discharged from the lower ends of . and the gold deposit salvaged while the gold col
the spiral troughs 88 although such further
means, herein illustrated as- comprising the sec
ondary spiral separator F, may be omitted if
desired.
-
The separator F is preferably ?xed or non-r0;
tating and comprises a supporting base 93 carried
by the base ID of frame A, this base having a
relatively high pitch spirally disposed outer cas
75 ing 94 terminating upwardly in the aforesaid
lected by riilles IOI and plates I82 may readily be
reached for removal by reason of the height be
tween adjacent turns of the open spiral F. The
parts are then again assembled with new burlap
91, and the separating process repeated.
The gold may be readily removed from the
amalgamating plates in any suitable and con
venient manner as by brushing the plates in the
presence of water, the mercury, which will ordi
65
9,188,271
narily largely brush of! also, being distilled for
reclamation.
.
Instead of using water during the gold reclaim
ing process in the machine, as hereinbefore set
forth, I may employ other forms of fluid such as
compressed air to facilitate the separation of gold
in a dry pulverized dirt mixture, assisted if de
sired by magnetic riilles.
Various changes in the details of construction
10 and operation of my machine and in the mode of
carrying out my process .will be readily apparent
from my disclosure of the principles of my inven
tion, as set forth in the claims appended hereto,
and I do not limit my invention to such details
and speci?c process hereinbeforc described.
I claim:
1. Gold reclaiming apparatus comprising a ro—
tatable separator structure having its axis dis
posed substantially vertically, means for rotat
ing said separator structure about said axis, said
separator structure having an axial spiral core
providing a' dirt conducting passage, means forv
introducing gold-bearing dirt to the upper end of
said core for gravity ?ow downwardly there
through, the convolutions of said spiral core being
spaced from each other to provide dirt passage
laterally therebetween, said convolutions pro
gressively diminishing in diameter from the upper
end portion of said core toward the lower end
30 portion thereof to catch said dirt flowing down
wardly therethrough, a spiral guideway extend
ing laterally of said core for conducting said dirt
laterally outwardly from said spaces between the
'ing an axial core providing a dirt conducting pas
sage, means i'or introducing gold-bearing dirt to
the upper end of said core passage for gravity ?ow
downwardly therethrough, said separator struc
ture further including a spirally disposed guide
way extending outwardly from and around said
core for conducting said dirt generally laterally
outwardly from said core passage, said spiral
guideway comprising a plurality of pan sectors,
support members underlying said spiral guide
way and projecting laterally outwardly and
downwardly from saidcore to support said pan
sectors, said support members being spirally
spaced from each other and secured at their inner
ends to said core, and gold collecting means car
ried by said pans.
6. Gold reclaiming apparatus comprising a
separator structure having its axis disposed sub
stantially vertically, said separator structure hav
ing an axial core providing a dirt conducting
passage, means for introducing gold-bearing dirt
to the upper end of said core passage for gravity
?ow downwardly therethrough, said separator
structure further including a spirally disposed
guideway extending outwardly from and around
said core for conducting said dirt generally later
ally outwardly from said core passage, said spiral
guideway comprising a plurality of pan sectors,
a plurality of support rods underlying said spiral
guideway and projecting-laterally and outwardly 30
and downwardly fromv said core, said support
members being spirally spaced from each other
and secured at their inner ends to said core, each
convolutions of said spiral core, and gold collect- \ of said pan sectors having one of its outwardly
35 ing means carried by said guideway.
2. A gold separator comprising a spiral core
forming a vertically disposed passageway having
lateralopenings between the convolutions of said
spiral core, means for introducing gold-bearing
dirt to the upper end of said core passageway
for gravity ?ow downwardly therethrough and
laterally through said openings, a spiral guide
way carried by said core for conducting said dirt
generally outwardly from said core openings, and
45 gold collecting means carried by said spiral
guideway.
'
3. A gold separator comprising a spiral core
having a vertically disposed passageway open
laterally between the convolutions of said spiral
core, means for introducing gold-bearing dirt to
extending edge portions overlying one of said 36
support rods and having the other of its outward
ly extending edge portions overlapping and sup
ported by the rod-supported edge portion of an
adjacent pan sector, and gold collecting means
carried by said pans.
'
7. A gold separator comprising a spiral core
forming a vertically disposed passageway having
lateral openings between the convolutions of said
spiral core, means for introducing gold-bearing
dirt to the upper end of said core passageway 45
for gravity ?ow downwardly therethrough and
laterally through said openings, a spiral guide
way carried by’ said core for conducting said dirt
generally outwardly from said core openings, and
gold collecting means carried by said spiral guide
50
way, said spiral core being tapered to progressive
the upper end of said core passageway for con
ly position successive convolutions thereof in
ducting said dirt generally outwardly from be
tween said core convolutions, gold ‘collecting - wardly of said passageway to catch the dirt flow
means carried by said spiral guideway, and means ing downwardly in said passageway.
8. In a gold separator, a plurality of contigu
55 for rotating said core and spiral guideway as a ous spiral elements together forming a substan
unit.
4. A gold separator comprising a spiral core tially cylindrical housing structure having its axis
forming a vertically disposed passageway having disposed vertically, means carried by the inner
lateral openings between the convolutions of said wall of each of said spiral elements for lzipllect 60
ing gold, means disposed within said
ing
60 spiral core, means for introducing gold-bearing structure for conducting gold-bearing dirt t each
dirt to the upper end of said core passageway for
gravity ?ow downwardly therethrough and later
ally through said openings, a spiral guideway car
ried by said core for conducting said dirt general
65 ly outwardly from said core openings, gold col
lecting means carried by said spiral guideway,
and a pipe carried by said spiral core, said pipe
being spirally wound adjacent the inner edges of
the convolutions of said spiral guideway for di
70
recting a fluid toward said spiral guideway to
facilitate gold collection by said gold collecting
means.
75
_
'
5. Gold reclaiming apparatus comprising a
separator structure having its axis disposed sub
stantially vertically, said separator structure hav
of said spiral elements substantially throughout
the lengths thereof, and means for rotating said
cylindrical housing structure about said axis dur
ing said conduction of the dirt to said spiral ele 65
- ments.
9. In a gold separator, a plurality of contigu
ous spiral elements together forming a substan
tially cylindrical housing structure having its axis
disposed vertically, means carried by and dis 70
posed inwardly of each of. ‘said spiral elements
for collecting gold, means disposed within said
housing structure for conducting gold-bearing
dirt to each of said spiral elements substantially
throughout the lengths thereof. and means for 76
5
2,133,271 >
pivotally supporting said spiral elements -for
swinging movement thereof relatively to each
other.
.
10. In a gold separator, a plurality of contigu
ous spiral elements together forming a substané
tially cylindrical housing structure having its axis
disposed vertically, means for pivotally support
ing the upper end of each of said spiral elements
for swinging movement relative to ‘each other,
10 means carried by the inner wall of each of said
spiral elements for collecting gold, means dis
posed within said housing structure for conduct
ing gold-bearing dirt to each of said spiral ele
ments substantially throughout the lengths there
of, an annular water storage trough disposed at
the upper end of said cylindrical housing struc
ture, a spiral pipe carried by the inner wall of
for conducting gold-bearing dirt to said guideway.
an outer separator having a spiral dirt guideway
adapted to receive dirt outwardly from the con
volutions of the first said guideway substantially
along the length thereof, and means for rotating
said separators simultaneously in opposite direc- ‘
tions.
'
15. In a gold separating apparatus, an inner
separator having a spiral dirt guideway sloping
radially outwardly and downwardly, means for 10
conducting gold-bearing dirt to said guideway,
an outer separator having a spiral dirt guideway,
the convolutions of which are disposed adjacent
the outer periphery of the convolutions of the
inner spiral guideway substantially throughout
the length thereof to receive dirt outwardly from
convolutions of the ?rst said guideway, and
each of said spiral elements for directing water the
gold separating means carried by said guideways,
toward the dirt conducted to said elements, and
20 a ?exible water conducting conduit between each the'convolutions of said spirals extending in op
of said spiral pipes and said trough adapted to posite directions relative to each other.
16. In a gold separating apparatus, 'an inner
supply water from said trough to said spiral pipes rotatable
separator having, a spiral dirt guideway
while accommodating said swinging movement of sloping radially
outwardly and downwardly,
said spiral elements relative to said trough.
V3 SI
11. In a gold separator, a substantially spiral means for conducting gold-bearing dirt to said
rotatable guideway having its axis extending guideway, an outer rotatable separator having a
dirt guideway, the convolutions of which
substantially vertically, means for conducting spiral
are disposed adjacent the outer periphery of the
gold-bearing dirt vertically downwardly along convolutions
of the inner spiral guideway sub
said axis for distribution laterally thereof to the stantially throughout the length thereof to re
30 convolutions of said guideway at points spaced
ceive dirt outwardly from the convolutions of the
along said axis, means for rotating said guide
?rst said guideway, gold separating means car
way, a plurality of recessed amalgamating plates
ried by said guideways, means drivingly connect
carried by the upper faces of said spiral guide
ing said inner and outer separators for simul
way and spaced from each other to baille the
dirt during passageway thereof on said spiral
guideway from said axis to the outer edges of
the convolutions of said spiral guideway.
12. Gold reclaiming apparatus comprising a
separator structure having its axis disposed sub
stantially vertically, said separator structure
having an axial core providing a dirt conducting
passage, means for introducing gold-bearing dirt
to the upper end of said core passage for gravity
?ow downwardly therethrough, said separator
structure further including a spirally disposed
guideway extending outwardly from and around
said core, said core having openings for distribut
ing the dirt to said guideway at points substan
tially throughout the length of said core passage,
50 said spiral guideway having a slope which ex
tends in a direction radially outwardly and down
wardly from said core passage and which has
sufficient inclination to cause the dirt to flow by
gravity radially of said core passage and circum
.55 ferentially thereof along a spiral path for gravity
discharge from the outer edges of said spiral
guideway substantially throughout the length
thereof, and gold collecting means carried by
said guideway.
60
13. In a gold separating apparatus, an inner
separator having a spiral dirt guideway sloping
radially outwardly and downwardly, means for
conducting gold-bearing dirt to said guideway, an
outer separator having a spiral dirt guideway, the
65 convolutions of which are disposed to position
the inner periphery thereof adjacent the outer
periphery of the convolutions of the inner spiral
guideway to receive dirt from the latter convolu
tions substantially throughout the length thereof,
70 the convolutions of the outer separator having a
relatively greater inclination than that of the con
15
.
20
25
30
taneous rotation thereof inv opposite directions,
a third nonrotatable separator disposed below
said outer separator for receiving dirt therefrom,
means for rotatably supporting the lower end of
said inner separator on the upper end of said
third separator, and gold collecting means as
sociated with said third separator.
40
17. In a gold separating apparatus, an inner
rotatable separator having a spiral dirt guideway
sloping radially outwardly and downwardly,
means for conducting gold-bearing dirt to said
guideway, an outer rotatable separator having a 45
spiral dirt guideway, the convolutions of which
are disposed adjacent the outer periphery of the
convolutions of the inner spiral guideway sub
stantially throughout the length thereof to re
ceive dirt outwardly from the convolutions of the
?rst said guideway, gold collecting means car
ried by said guideways, means for simultaneously
rotating said separators in opposite directions, a
third nonrotatable separator having a spiral dirt
guideway adapted to receive dirt from one of 55
the ?rst said separators, means for journalling
the lower end of said inner separator on said third
separator, gold collecting means carried by said
third separator, and means for directing ?uid
toward said guideways during passage of the dirt 60
so
therealong.
I
18. In a gold separating apparatus, an inner
separator having a spiral dirt guideway sloping
radially outwardly and downwardly, means for
conducting gold-bearing dirt to said guideway, 65
an outer separator having a spiral dirt guideway,
the convolutions of which are disposed adjacent
the outer periphery of the convolutions of the
inner spiral guideway substantially throughout
the length thereof to receive dirt outwardly from 70
the convolutions of the ?rst said guideway, gold
volutions of the inner spiral, and gold separating separating means carried by said guideways, and
. means carried by said guideways.
a spirally wound ?uid conducting pipe for each
14. In a gold separating apparatus, an inner of said separators respectively adapted to direct
75 separator having a spiral dirt guideway, means‘ ?uid under pressure toward said spiral guideways.
75
6
2,188,271
19. In an ore separator, a spiral core having an
axial dirt passageway, a plurality of rods having
their inner ends attached to said core, said rods
being spaced from each other along the length
of said core and sloping downwardly and out»
wardiy therefrom, a plurality of contiguous pan
sectors together forming a spiral dirt guideway,
and means removably supporting said pan sec
tors on said rods.
20. In a gold separatona substantially spiral
trough-like conveyor adapted to convey gold
bearing dirt by gravity from‘ the upper end of said
conveyor to the lower end thereof, gold separat
ing means extending across said. trough-like con
15 veyor at a plurality of points along the spiral
length thereof for collecting gold from said dirt.
a spirally disposed ?lter forming a cover for said
trough-like conveyor, means for introducing gold
bearing dirt to the upper end of said ?lter for
20
gravity passage along the spiral length thereof
and for passage therethrough to said gold sep
arating means, a ?uid-conducting pipe extending
vertically along the axis of said spiral conveyor,
branch pipes radiating from said vertically ex
tending pipe at points along the length thereof
for directing ?uid toward said spiral ?lter, and
means for introducing ?uid under pressure to said
‘vertically extending pipe.
21. In a gold separator, upright spirally ex
30 tending passage forming means for conducting
gold-bearing dirt by gravity downwardly there
through, said passage forming .means having its
spiral convolutions spaced from each other to
form a substantially spirally extending opening,»
35 means for conducting said dirt in a series of su
per-imposed spiral paths extending laterally out
wardly and downwardly from said spirally ex
.
tending opening, and gold collecting means car
ried by said laterally extending dirt conducting
means.
22. In a gold separator, upright spirally ex
tending passage forming means for conducting
gold-bearing dirt by gravity downwardly there
through, said passage forming means having its
spiral convolutions spaced from each other to
form a substantially spirally extending opening,
means for conducting said dirt in a series of su
perimposed spiral paths extending laterally out
wardly and downwardly from said spirally ex
tending opening, said passage forming means
having its spiral convolutions progressively in
wardly offset to catch the dirt conducted down
wardly therethrough for passage through said
spirally extending opening, and gold collecting
15
means carried by said laterally extending dirt
conducting means.
'
4
23. In a gold separating apparatus, an inner 20
vertically disposed separator having an inner
spiral dirt guideway sloping downwardly and out
wardly for gravity flow of gold-bearing dirt, the
convolutions of said inner guideway extending for
substantially more than 360°, means for conduct 25
ing said dirt to said inner guideway, an outer
vertically disposed separator having an outer
spiral dirt guideway adapted to receive said dirt
from along the periphery of the convolutions of
said inner guideway, the convolutions of said 30
outer guideway extending for substantially less
than 360° but for substantially the height of said
convolutions of said inner guideway, and means
for rotating said separators simultaneously in
opposite directions.
.
FRANK W. BRIN'I'NALL.
as
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